DESC:FIELD
The present disclosure relates to a sanitizing composition and a process for its preparation.
BACKGROUND
The background information herein below relates to the present disclosure but is not necessarily prior art.
Air quality in indoors is very important for a healthy stay. The indoor air is generally inhabited with microbes such as bacteria, fungi and viruses; odour and other associated pollutants. There are numerous known sanitizing and deodorizing compositions that confer anti-microbial activity to a surface.
Conventionally, the deodorizing compositions are commonly used for deodorizing textile carpets, upholsteries, fabrics and the like. The odour-masking agents used conventionally are perfume/fragrance zeolite, diatomaceous earth and the like.
The sanitizing compositions are known to include the components such as vinyl acetal derivative, polymer binder, solvents for solubilizing the antimicrobial agent, silver ion-producing substrate, activated charcoal, quaternary ammonium compounds/salts, dry time enhancer (methyl diisopropyl propionamide), adhesion promoter acrylic polyester modified epoxy carboxylate, antibacterial compounds such as Ag2O, ZnO and CuO and their nano-forms and the like.
These known compositions fail to provide anti-bacterial, anti-viral, anti-fungal and insect repellent and deodorizing properties in a single composition, which is safe and easy to use routinely.
Therefore, there is felt a need to develop sanitizing compositions that overcome the above-mentioned limitations or at least provides a useful alternative.
OBJECTS
Some of the objects of the present disclosure, which at least one embodiment herein satisfies, are as follows.
It is an object of the present disclosure is to ameliorate one or more problems of the background or to at least provide a useful alternative.
Another object of the present disclosure is to provide a sanitizing composition.
Still another object of the present disclosure is to provide a sanitizing composition that is used for coating multi-surfaces.
Yet another object of the present disclosure is to provide a sanitizing composition that do not stain the surface upon coating.
Still another object of the present disclosure is to provide a sanitizing composition that has sustained anti-microbial and deodorizing effects.
Yet another object of the present disclosure is to provide a sanitizing composition that have sustained insect-repellent effects.
Still another object of the present disclosure is to provide a sanitizing composition that is in the form of an aerosol.
Yet another object of the present disclosure is to provide a sanitizing composition that is in the form of a film.
Still another object of the present disclosure is to provide a simple and economic process for preparing sanitizing composition.
Other objects and advantages of the present disclosure will be more apparent from the following description, which is not intended to limit the scope of the present disclosure.
SUMMARY
In a first aspect, the present disclosure relates to a sanitizing composition. The sanitizing composition comprises 5 mass% to 40 mass% of colloidal silica, 1 mass% to 10 mass% of a metal compound, 0.05 mass% to 2 mass% of an insect repellent, 0.01 mass% to 5 mass% of a biocide, 1 mass % to 40 mass % of additives and q.s. water, wherein the mass% of each ingredient is with respect to the total mass of the composition.
In another aspect, the present disclosure relates to a process for the preparation of a sanitizing composition.
The process for preparing a sanitizing composition comprises following steps:
a. mixing a predetermined amount of colloidal silica in water under stirring for a time period in the range of 5 minutes to 10 minutes; followed by adding a predetermined amount of a metal compound under stirring for a time period in the range of 5 minutes to 10 minutes to obtain a first mixture;
b. adding predetermined amounts of an encapsulating agent and a first biocide to the first mixture under stirring for a time period in the range of 5 minutes to 10 minutes to obtain a second mixture;
c. adding a predetermined amount of an insect repellent to the second mixture under stirring for a time period in the range of 5 minutes to 10 minutes to obtain a third mixture; and
d. adding predetermined amounts of a second biocide, a surfactant to the third mixture under stirring for a time period in the range of 5 minutes to 20 minutes to obtain the sanitizing composition.
The additive is selected from a group consisting of a surfactant, an encapsulating agent, a propellent, and a binder.
The colloidal silica has a particle size in the range of 2 nm to 20 nm.
The metal compound is selected from the group consisting of zinc oxide, nano zinc oxide (nZnO), copper oxide and silver oxide.
The insect repellent is an emulsified essential oil.
The essential oil is selected from the group consisting of Citronella oil, Lemon grass oil, Eucalyptus oil, Peppermint oil, Lavender oil, Rosemerry oil, and Chamomile oil.
An emulsifier used in the emulsified essential oil is selected from a first emulsifier and a second emulsifier independently selected from the group consisting of Polyoxyethylene (80) sorbitan monooleate, Polyoxyethylene (20) sorbitan monolaurate, Sorbitane monooleate, fatty acid ethoxylates and alcohol ethoxylates.
The biocide is a first biocide and a second biocide. The first biocide is selected from the group consisting of coco (fractionated) benzyldimethylammonium chloride and zinc pyrithone. The second biocide is selected from the group consisting of 2-n-octyl-4-isothiazolin, ethanol, silane functional tetraalkylammonium compound in a high boiling glycol ether, and 3-[N-n-butyl-N-acetyl]aminopropionic acid ethylester (IR3535).
The surfactant is selected from the group consisting of ethyl carbitol acetate and ethoxylated fluorosurfactants (Capstone FS 30, Capstone FS 93).
The encapsulating agent is selected from the group consisting of beta-cyclodextrin, and mesoporous silica.
The propellant is selected from the group consisting of dimethyl ether and liquified petroleum gas (LPG).
The binder is selected from the group consisting of polyvinyl alcohol, and polyethylene glycol, polyvinyl butyral and cellulose acetate butyrate.
The predetermined amount of a binder is added in the first step under stirring to obtain the sanitizing composition in the form of a film.
The predetermined amount of the binder is in the range of 0 mass% to 25 mass% with respect to the total mass of the sanitizing composition.
The predetermined amount of the propellant is added in the fourth step under stirring to obtain the sanitizing composition in the form of an aerosol.
The predetermined amount of the propellant is in the range of 0 mass% to 40 mass% with respect to the total mass of the sanitizing composition.
The propellant is at least one selected from the group consisting of dimethyl ether and liquified petroleum gas (LPG).
In accordance with the present disclosure, the stirring is done at a speed in the range of 200 rpm to 500 rpm.
The predetermined amount of the colloidal silica is in the range of 5 mass% to 40 mass% with respect to the total mass of the sanitizing composition.
The binder is selected from the group consisting of polyvinyl alcohol, polyethylene glycol, polyvinyl butyral and cellulose acetate butyrate.
The predetermined amount of the metal compound is in the range of 1 mass% to 10 mass% with respect to the total mass of the sanitizing composition.
The metal compound is selected from the group consisting of zinc oxide, nano-zinc oxide copper oxide and silver oxide.
The predetermined amount of the encapsulating agent is in the range of 0.05 mass% to 2 mass% with respect to the total mass of the sanitizing composition.
The encapsulating agent is selected from the group consisting of beta-cyclodextrin and mesoporous silica.
The predetermined amount of the first biocide is in the range of 0.01 mass% to 0.5 mass% with respect to the total mass of the sanitizing composition and the predetermined amount of the second biocide is in the range of 0.5 mass% to 4.5 mass% with respect to the total mass of the sanitizing composition.
The first biocide is selected from the group consisting of coco (fractionated) benzyldimethylammonium chloride and zinc pyrithone.
The second biocide is selected from the group consisting of 2-n-octyl-4-isothiazolin, ethanol, silane functional tetraalkylammonium compound in a high boiling glycol ether, and 3-[N-n-butyl-N-acetyl]aminopropionic acid ethylester (IR3535).
The predetermined amount of the insect repellent is in the range of 0.05 mass% to 2 mass% with respect to the total mass of the sanitizing composition.
The insect repellent is an emulsified essential oil, wherein the insect repellent is prepared by mixing predetermined amounts of an essential oil, and a first emulsifier under stirring at a speed in the range of 200 rpm to 500 rpm for a time period in the range of 2 minutes to 15 minutes followed by adding predetermined amounts of water and a second emulsifier under stirring for a time period in the range of 2 minutes to 15 minutes.
The predetermined amount of the essential oil is in the range of 0.05 mass% to 10 mass% with respect to the total mass of the sanitizing composition.
The essential oil is at least one selected from the group consisting of Citronella oil, Lemon grass oil, Eucalyptus oil, Peppermint oil, Lavender oil, Rosemerry oil, Chamomile oil or a combination thereof.
The predetermined amount of the first emulsifier is in the range of 0.01 mass% to 5 mass% with respect to the total mass of the sanitizing composition.
The predetermined amount of the second emulsifier is in the range of 0.01 mass% to 5 mass% with respect to the total mass of the sanitizing composition.
The first emulsifier and the second emulsifier are independently selected from the group consisting of Polyoxyethylene (80) sorbitan monooleate, Polyoxyethylene (20) sorbitan monolaurate, Sorbitane monooleate, fatty acid ethoxylates and alcohol ethoxylates.
The predetermined amount of water is in the range of 0.1 mass% to 0.5 mass% with respect to the total mass of the sanitizing composition.
The predetermined amount of the surfactant is in the range of 0.05 mass% to 10 mass% with respect to the total mass of the sanitizing composition.
The surfactant is selected from the group consisting of ethyl carbitol acetate, and ethoxylated nonionic fluorosurfactants (Capstone FS 30, Capstone FS 93).

BRIEF DESCRIPTION OF THE ACCOMPANYING DRAWINGS
The present disclosure will now be described with the help of the accompanying drawing, in which:
Figure 1 illustrates (a) a Gray wolf VOC (Volatile Organic Compounds) meter and (b) an experimental set up for H2S reduction in accordance with the present disclosure;
Figure 2 illustrates a graphical representation of the odour absorption (H2S as model compound) by the sanitizing composition in accordance with the present disclosure as compared to a control composition;
Figure 3 illustrates (a) an air quality measurement instrument from OIZOM and (b) an experimental setup for the SO2 and NO2 reduction by using the air quality measurement equipment from OIZOM in accordance with the present disclosure;
Figure 4 illustrates (a) a graphical representation for NO2 absorption (reduction) by the sanitizing composition prepared in accordance with the present disclosure with reference to the control composition and (b) a graphical representation of SO2 absorption (reduction) by the sanitizing composition prepared in accordance with the present disclosure with reference to the control composition;
Figure 5 illustrates the odour absorption test set up by chamber test - cigarette smoke odours test;
Figure 6 illustrates fragrance sustenance test wherein (a) represents white fabric applied with sanitizing composition in accordance with the present disclosure and (b) represents white fabric applied with sanitizing composition without beta-cyclodextrin system; and
Figure 7 illustrates (a) a visual image of the experimental chamber applied with the sanitizing composition in accordance with the present disclosure, (b) illustrates the visual image of the experimental chamber applied with the sanitizing composition in accordance with the present disclosure after 30 days, (c) illustrates visual image of the experimental chamber applied with the commercially available spider repellent product, and (d) illustrates the visual image of the experimental chamber applied with the commercial insect repellent product after 30 days.
DETAILED DESCRIPTION
The present disclosure relates to a sanitizing composition and a process for its preparation. Particularly, the present disclosure relates to a non-staining sanitizing composition having anti-microbial and deodorizing properties.
Embodiments, of the present disclosure, will now be described with reference to the accompanying drawing.
Embodiments are provided so as to thoroughly and fully convey the scope of the present disclosure to the person skilled in the art. Numerous details, are set forth, relating to specific components, and methods, to provide a complete understanding of embodiments of the present disclosure. It will be apparent to the person skilled in the art that the details provided in the embodiments should not be construed to limit the scope of the present disclosure. In some embodiments, well-known processes, well-known apparatus structures, and well-known techniques are not described in detail.
The terminology used, in the present disclosure, is only for the purpose of explaining a particular embodiment and such terminology shall not be considered to limit the scope of the present disclosure. As used in the present disclosure, the forms "a,” "an," and "the" may be intended to include the plural forms as well, unless the context clearly suggests otherwise. The terms "comprises," "comprising," “including,” and “having,” are open ended transitional phrases and therefore specify the presence of stated features, elements, modules, units and/or components, but do not forbid the presence or addition of one or more other features, elements, components, and/or groups thereof.
As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed elements.
The terms first, second, third, etc., should not be construed to limit the scope of the present disclosure as the aforementioned terms may be only used to distinguish one element, component, region, layer or section from another component, region, layer or section. Terms such as first, second, third etc., when used herein do not imply a specific sequence or order unless clearly suggested by the present disclosure.
Air quality of in indoor is very important for healthy stay. The indoor air is generally inhabited with microbes such as bacteria, fungi and virus; odour and other associated pollutants. There are numerous known sanitizing and deodorizing compositions that confer anti-microbial activity to a surface.
Conventionally, deodorizing compositions are commonly used for deodorizing textiles carpet, upholsteries fabrics and the like. The odour masking agents used conventionally are perfume/fragrance zeolite, diatomaceous earth and the like.
The sanitizing compositions are known to include the components such as vinyl acetal derivative, polymer binder, solvents for solubilizing the antimicrobial agent, silver ion producing substrate, activated charcoal, quaternary ammonium compounds/salts, dry time enhancer (methyl diisopropyl propionamide), adhesion promoter acrylic polyester modified epoxy carboxylate, antibacterial compounds such as Ag2O, ZnO and CuO and their nano-forms and the like.
These known compositions fail to provide anti-bacterial, anti-viral, anti-fungal and insect repellent and deodorizing properties in a single composition; and which is safe and easy to use routinely.
The compositions in accordance with the present disclosure provides sustained anti-microbial and deodorizing-fragrance fortified, non-staining multi-surface sanitizing composition.
In an aspect, the present disclosure provides a sanitizing composition.
The sanitizing composition comprises 5 mass% to 40 mass% of colloidal silica, 1 mass% to 10 mass% of a metal compound, 0.05 mass% to 2 mass% of an insect repellent, 0.01 mass% to 5 mass% of a biocide, 1 mass % to 40 mass % of additives and q.s. water, wherein the mass% of each ingredient is with respect to the total mass of the composition.
In an exemplary embodiment of the present disclosure, the sanitizing composition comprises 35 mass% of colloidal silica, 6.75 mass% of a metal compound, 1.36 mass% of an insect repellent, 2.35 mass% of biocide, 37.6 mass % of additives and q.s. water, wherein the mass% of each ingredient is with respect to the total mass of the composition.
In an another exemplary embodiment, the sanitizing composition comprises 35 mass% of colloidal silica, 3.03 mass% of a metal compound, 1.36 mass% of an insect repellent, 2.35 mass% of biocide, 27.6 mass % of additives and q.s. water, wherein the mass% of each ingredient is with respect to the total mass of the composition.
The colloidal silica has a particle size in the range of 2 to 20 nm. In an exemplary embodiment, colloidal silica has a particle size of 5 nm.
In accordance with the present disclosure, the colloidal silica is a silica modified with metals like copper or silver.
In accordance with the present disclosure, the colloidal silica is Prebona Odour Control SC and Prebona combifresh. In an exemplary embodiment of the present disclosure, the colloidal silica is a combination of Prebona Odour Control SC and Prebona combifresh.
The metal compound is selected from the group consisting of zinc oxide, nano zinc oxide (nZnO), copper oxide and silver oxide. In an exemplary embodiment of the present disclosure, the metal compound is nano-zinc oxide (ZNcoat WD).
The insect repellent is an emulsified essential oil. The essential oil is selected from the group consisting of Citronella oil, Lemon grass oil, Eucalyptus oil, Peppermint oil, Lavender oil, Rosemerry oil, and Chamomile oil. In an exemplary embodiment of the present disclosure, the essential oil is Peppermint oil.
An emulsifier used in the emulsified essential oil is selected from a first emulsifier and a second emulsifier independently selected from the group consisting of Polyoxyethylene (80) sorbitan monooleate, Polyoxyethylene (20) sorbitan monolaurate, sorbitane monooleate, fatty acid ethoxylates and alcohol ethoxylates. In an exemplary embodiment of the present disclosure, the first emulsifier and the second emulsifier is a combination of Sorbitane monooleate, Polyoxyethylene (20) sorbitan monolaurate.
In an embodiment of the present disclosure, the biocide is a first biocide and a second biocide. The first biocide is selected from the group consisting of coco (fractionated) benzyldimethylammonium chloride and zinc pyrithone. In an exemplary embodiment of the present disclosure, the first biocide is coco (fractionated) benzyldimethylammonium chloride.
The second biocide is selected from the group consisting of 2-n-octyl-4-isothiazolin, ethanol, silane functional tetraalkylammonium compound in a high boiling glycol ether and 3-[N-n-butyl-N-acetyl]aminopropionic acid ethylester (IR3535). In an exemplary embodiment of the present disclosure, the second biocide is a combination of 2-n-octyl-4-isothiazolin and silane functional tetraalkylammonium compound in a high boiling glycol ether.
In an embodiment of the present disclosure, the additive is selected from a group consisting of a surfactant, an encapsulating agent, a propellent, and a binder.
The surfactant is selected from the group consisting of ethyl carbitol acetate and ethoxylated fluorosurfactants (Capstone FS 30, Capstone FS 93). In an exemplary embodiment of the present disclosure, the surfactant is a combination of ethyl carbitol acetate and Capstone FS 30.
The encapsulating agent is selected from the group consisting of beta-cyclodextrin, and mesoporous silica. In an exemplary embodiment of the present disclosure, the encapsulating agent is beta-cyclodextrin.
The propellant is selected from the group consisting of dimethyl ether and liquified petroleum gas. In an exemplary embodiment of the present disclosure, the propellant is dimethyl ether.
The binder is selected from the group consisting of polyvinyl alcohol, and polyethylene glycol, polyvinyl butyral and cellulose acetate butyrate. In an exemplary embodiment of the present disclosure, the binder is a combination of polyvinyl alcohol (Kurraray poval PVA-217S) and polyethylene glycol (PEG 400).
In another aspect, the present disclosure relates to a process for the preparation of a sanitizing composition. The process comprises the step of:
a. mixing a predetermined amount of colloidal silica in water under stirring for a time period in the range of 5 minutes to 10 minutes followed by adding a predetermined amount of a metal compound under stirring for a time period in the range of 5 minutes to 10 minutes to obtain a first mixture;
b. adding predetermined amounts of an encapsulating agent and a first biocide to the first mixture under stirring for a time period in the range of 5 minutes to 10 minutes to obtain a second mixture;
c. adding a predetermined amount of an insect repellent to the second mixture under stirring for a time period in the range of 5 minutes to 10 minutes to obtain a third mixture; and
d. adding predetermined amounts of a second biocide, and a surfactant to the third mixture under stirring for a time period in the range of 5 minutes to 20 minutes to obtain the sanitizing composition.
The process is described in detail.
In a first step, a predetermined amount of colloidal silica is mixed in water under stirring for a time period in the range of 5 minutes to 10 minutes followed by adding a predetermined amount of a metal compound under stirring for a time period in the range of 5 minutes to 10 minutes to obtain a first mixture.
In accordance with the present disclosure, the stirring is done at a speed in the range of 200 rpm to 500 rpm. In an exemplary embodiment, the stirring is done at a speed in the range of 300 rpm.
The predetermined amount of the colloidal silica is in the range of 5 mass% to 40 mass% with respect to the total mass of the sanitizing composition. In an exemplary embodiment of the present disclosure, the predetermined amount of the colloidal silica is 35 mass % with respect to the total mass of the sanitizing composition.
The predetermined amount of the metal compound is in the range of 1 mass% to 10 mass% with respect to the total mass of the sanitizing composition. In an exemplary embodiment of the present disclosure, the predetermined amount of the metal compound is 6.75 mass% with respect to the total mass of the sanitizing composition. In another exemplary embodiment of the present disclosure, the predetermined amount of the metal compound is 3.03 mass% with respect to the total mass of the sanitizing composition.
The metal compound is selected from the group consisting of zinc oxide, nano-zinc oxide copper oxide and silver oxide. In an exemplary embodiment of the present disclosure, the metal compound is nanozinc oxide.
The predetermined time period is in the range of 5 minutes to 10 minutes. In an exemplary embodiment of the present disclosure, the time period is 7 minutes.
In an embodiment of the present disclosure, the predetermined amount of a binder is added in a first step under stirring to obtain the sanitizing composition in the form of a film.
The predetermined amount of the binder is in the range of 0 mass% to 25 mass% with respect to the total mass of the sanitizing composition. In an exemplary embodiment of the present disclosure, the predetermined amount of the binder is 21 mass% with respect to the total mass of the sanitizing composition.
The binder is selected from the group consisting of polyvinyl alcohol, polyethylene glycol, polyvinyl butyral and cellulose acetate butyrate. In an exemplary embodiment of the present disclosure, the binder is a combination of polyvinyl alcohol and polyethylene glycol.
In a second step, predetermined amounts of an encapsulating agent and a first biocide are added to the first mixture under stirring for a time period in the range of 5 minutes to 10 minutes to obtain a second mixture.
In an exemplary embodiment of the present disclosure, the time period is 5 minutes.
The predetermined amount of the encapsulating agent is in the range of 0.05 mass% to 2 mass% with respect to the total mass of the sanitizing composition. In an exemplary embodiment of the present disclosure, the predetermined amount of the encapsulating agent is 1 mass% with respect to the total mass of the sanitizing composition.
The encapsulating agent is selected from the group consisting of beta-cyclodextrin and mesoporous silica. In an exemplary embodiment of the present disclosure, the encapsulating agent is beta-cyclodextrin.
The predetermined amount of the first biocide is in the range of 0.01 mass% to 0.5 mass% with respect to the total mass of the sanitizing composition. In an exemplary embodiment of the present disclosure, the predetermined amount of first biocide is 0.05 mass% with respect to the total mass of the sanitizing composition.
The first biocide is selected from the group consisting of coco (fractionated) benzyldimethylammonium chloride and zinc pyrithone. In an exemplary embodiment of the present disclosure, the first biocide is coco (fractionated) benzyldimethylammonium chloride.
In a third step, a predetermined amount of an insect repellent is added to the second mixture under stirring for a time period in the range of 5 minutes to 10 minutes to obtain a third mixture.
In an exemplary embodiment of the present disclosure, the time period is 7 minutes.
The predetermined amount of an insect repellent is in the range of 0.05 mass% to 2 mass% with respect to the total mass of the sanitizing composition. In an exemplary embodiment of the present disclosure, the insect repellent is 1.36 mass% with respect to the total mass of the sanitizing composition.
The insect repellent is an emulsified essential oil. Essential oil used is responsible for the spider and other insects or bugs repellence. Emulsified essential oils result in sustained release of the essential oils hence sustained performance of insect repellence. These oils are strategically blended with other fragrance oils which results better deodorizing performance. Essential oil blends along with insect repellent property simultaneously imparts an aroma, serves as aroma therapy and impacts human behaviors. Essential oils, have tendencies to evaporate faster from the surface. Hence, essential oils are encapsulated to have the composition with sustained release of the essential oils hence sustained relevant performance of insect repellence.
The insect repellent is prepared by mixing predetermined amounts of an essential oil, and a first emulsifier under stirring at a speed in the range of 200 rpm to 500 rpm for a time period in the range of 2 minutes to 15 minutes followed by adding predetermined amounts of water and a second emulsifier under stirring for a time period in the range of 2 minutes to 15 minutes.
In an exemplary embodiment of the present disclosure, the insect repellent is prepared by mixing predetermined amounts of an essential oil, and a first emulsifier under stirring at a speed of 300 rpm for a time period of 5 minutes followed by adding predetermined amounts of water and a second emulsifier under stirring for a time period of 5 minutes.
The predetermined amount of the essential oil is in the range of 0.05 mass% to 10 mass% with respect to the total mass of the sanitizing composition. In an exemplary embodiment of the present disclosure, the predetermined amount of the essential oil is 1 mass% with respect to the total mass of the sanitizing composition.
The essential oil is at least one selected from the group consisting of Citronella oil, Lemon grass oil, Eucalyptus oil, Peppermint oil, Lavender oil, Rosemerry oil, Chamomile oil or a combination thereof. In an exemplary embodiment of the present disclosure, the essential oil is Peppermint oil.
The predetermined amount of a first emulsifier is in the range of 0.01 mass% to 5 mass% with respect to the total mass of the sanitizing composition. The predetermined amount of a second emulsifier is in the range of 0.01 mass% to 5 mass% with respect to the total mass of the sanitizing composition. In an exemplary embodiment of the present disclosure, the predetermined amount of the first emulsifier is 0.05 mass% with respect to the total mass of the sanitizing composition. In an exemplary embodiment of the present disclosure, the predetermined amount of the second emulsifier is 0.05 mass% with respect to the total mass of the sanitizing composition.
The first emulsifier and the second emulsifier are independently selected from the group consisting of Polyoxyethylene (80) sorbitan monooleate, Polyoxyethylene (20) sorbitan monolaurate, Sorbitane monooleate, fatty acid ethoxylates and alcohol ethoxylates. In an exemplary embodiment the first emulsifier and the second emulsifier is a combination of Sorbitane monooleate, and Polyoxyethylene (20) sorbitan monolaurate.
The predetermined amount of water is in the range of 0.1 mass% to 0.5 mass% with respect to the total mass of the sanitizing composition. In an exemplary embodiment of the present disclosure, the predetermined amount of water is in the range of 0.26 mass% with respect to the total mass of the sanitizing composition.
In a fourth step, predetermined amounts of a second biocide, and a surfactant are added to the third mixture under stirring for a time period in the range of 5 minutes to 20 minutes to obtain the sanitizing composition.
In an exemplary embodiment of the present disclosure, the time period is 5 minutes.
The predetermined amount of the second biocide is in the range of 0.5 mass% to 4.5 mass% with respect to the total mass of the sanitizing composition. In an exemplary embodiment of the present disclosure, the predetermined amount of the second biocide is 2.3 mass% with respect to the total mass of the sanitizing composition.
The second biocide is selected from the group consisting of 2-n-octyl-4-isothiazolin, ethanol, silane functional tetraalkylammonium compound in a high boiling glycol ether, 3-[N-n-butyl-N-acetyl]aminopropionic acid ethylester (IR3535). In an exemplary embodiment of the present disclosure, the second biocide is a combination of 2-n-octyl-4-isothiazolin and silane functional tetraalkylammonium compound in a high boiling glycol ether.
The predetermined amount of the surfactant is in the range of 0.05 mass% to 10 mass% with respect to the total mass of the sanitizing composition. In an exemplary embodiment of the present disclosure, the predetermined amount of surfactant is 1.5 mass% with respect to the total mass of the sanitizing composition. In an another exemplary embodiment of the present disclosure, the predetermined amount of surfactant is 5.5 mass% with respect to the total mass of the sanitizing composition.
The surfactant is selected from the group consisting of ethyl carbitol acetate, ethoxylated nonionic fluorosurfactants (Capstone FS 30, Capstone FS 93). In an exemplary embodiment of the present disclosure, the surfactant is a combination of ethyl carbitol acetate and Capstone FS 30.
In an embodiment of the present disclosure, a predetermined amount of the propellant is added in the fourth step under stirring to obtain the sanitizing composition in the form of an aerosol.
The predetermined amount of the propellant is in the range of 0 mass% to 40 mass% with respect to the total mass of the sanitizing composition. In an exemplary embodiment of the present disclosure, the predetermined amount of the propellant is 35 mass% with respect to the total mass of the sanitizing composition.
The propellant is selected from the group consisting of dimethyl ether, and liquified petroleum gas. In an exemplary embodiment of the present disclosure, the propellant is dimethyl ether.
The sanitizing composition of the present disclosure offer sustained odour absorption, anti-bacterial, anti-fungal, insect repellence and fragrance release for well-being of occupants of the interior.
In accordance with the present disclosure, the sanitizing composition is a clear water-based composition which is applied on a surface by using brushes, rollers, sprayers, aerosol-based systems, and dipping.
In accordance with the present disclosure, the sanitizing composition is applied by a method selected from the group consisting of brushes, rollers, sprayers, aerosol-based systems, and dipping. In an exemplary embodiment of the present disclosure, the sanitizing composition is aerosol based system. In another exemplary embodiment of the present disclosure, the sanitizing composition is applied with brush.
In accordance with the present disclosure, the surface is selected from the group consisting of painted walls, wood, metal, plastics, pre-installed textile, and leather. In an exemplary embodiment of the present disclosure, the surface is painted walls.
The sanitizing composition does not stain the surface on which it is applied.
The sanitizing compositions enable the following performances in the context of improving the indoor air quality and well-being of the occupants:
• the composition is easily applied on painted / non-painted solid surfaces such as masonry, wood, textile, leather, plastic, metal and the like by tools such as brush, roller, spray, aerosol-based systems and the like;
• the composition absorbs the malodours contributed by various sources like toilets/ urinals, cigarette smoke and other household malodours;
• the composition also absorbs the toxic gases such as NO2, SO2, H2S, formaldehyde, ammonia and the like;
• the composition is water-based and ready to apply and enable the surfaces with very good anti-bacterial and anti-fungal performances;
• the composition has the insect repellent which can repel the household insects, bugs, flies, and mites including household spiders so as to offer cob-web-free surfaces with improved hygiene and free of the respective nuisance. The sustained release of the insect repellent is due to the encapsulation of essential oil;
• the composition is encapsulated with various fragrances so as to have sustained release of the fragrance to provide the interiors with a fresh ambience not only free from the malodour but also with fresh fragrances; thereby providing the aromatherapy-like effect for the occupants (positively influencing the mood of the occupants) for few weeks;
• the composition can also be converted to peelable film;
• the composition provides a very good solution for the interior application over the painted / non-painted surfaces;
• the composition being a clear coat, is additionally used over the painted/non-painted surfaces to bridge the gap in existing paint systems; and
• the composition also complements conventional interior emulsion paints with antibacterial/ anti-fungal performances for the areas such as ceilings, carpets, textile surfaces, sofas, chairs, kitchen areas stores and the like, where the anti-bacterial, anti-fungal and odour absorption along with anti-insect performance is required.
The composition of the present disclosure was experimented with the following ingredients and their role and performance were noted which have been tabulated in Table 1 below:
Table 1: Ingredient description and function:
Sr.No. Ingredient description Chemical composition Function of the ingredient in a composition
1 Prebona Odour Control SC Odour absorbing active ( Copper metal adsorbed on the colloidal silica substrate) Odour absorption and converting the odour causing molecules to simple non odour causing molecules – Non film forming easy to remove morphology
2 Prebona Combifresh Anti-bacterial active based on silver metal adsorbed on the colloidal silica substrate Odour absorption and converting the odour causing molecules to simple non odour causing molecules – Non film forming easy to remove morphology
3 ZNcoat WD Nano zinc oxide - ZnO Used for the inhibition of inhibition of harmful bacteria, yeasts, and filamentous fungi
4 Beta- cyclodextrin/ other encapsulating agent like mesoporous silica etc. C42H70O35 beta cyclodextrin is a non reducing cyclic saccharide consisting of 7 a-1,4-linked D-glucopyranosyl units Used for encapsulation of the essential oils/blends so as to have the sustained release of them.
5 Ethyl Carbitol Acetate C8H16O4 2-(2-Ethoxy ethoxy) ethyl acetate, Di ethylene Glycol mono ethyl ether acetate. Carbitol solvent is used as a coalescent in latex paints and floor polishes
6 Capstone FS 30/ Capstone FS 93/ ICT 1413L anionic
fluorosurfactant Capstone™ FS-93 is a water-soluble, anionic
fluorosurfactant that gives extremely low aqueous
surface tension with minimal foaming
7 Synperonic A9/ Tween 20 Non ionic emulsifier For O/W emulsification of the essential oils
8 KURARAY POVAL™ PVA-217S is a water soluble, polyvinyl alcohol (PVOH) It is used as a binder releasable/peelable film like property to the composition
9 Polyethylene Glycol (PEG) 400 ( Plasticizer for PVA for strippable film. Other such plsticizers includes glycerine, polyether polyols, polyester polyols etc) is a low-molecular-weight grade of polyethylene glycol To provide plasticity, flexibility and to reduce the brittleness
10 Essential oil/ oil blends comprising
Citronella oil Alcohols (>35%): geraniol, citronnellol, and borneol natural non toxic(mosquito) repellent
Lemon grass oil citronellol and geraniol and is effective against a wide range of biting insects
Eucalyptus oil Natural repellent for mosquitoes
Peppermint oil Menthol, menthone, methyl acetate Used for spider repellency
11 Fragrances for aroma therapy: Lavender, Rose merry oil, Chamomile oil etc Unique
12 Dimethyl ether CH3OCH3 Propellant for aerosol spray
13 Arquad® MCB-50 PO Coco (fractionated) benzyldimethylammonium chloride Cationic emulsifier with biocidal performances and bug repellent.
14 Kopthione 40% FPS low particle size aqueous dispersion of Zinc Pyrithione Biocide for anti bacterial and antifungal performance
15 Thor DW 2-n-octyl-4-isothiazolin Used for the inhibition of broad spectrum fungi. It is non-yellowing organic fungicide.
16 Cylate 20-19 Silane-functional tetraalkylammonium compound in a high boiling glycol ether Cylate 20-19
17 IR3535 3-[N-n-butyl-N-acetyl] aminopropionic acid ethylester Natural non toxic used for the repellency of mosquito and flies. (IR3535® is inspired from a naturally occurring amino acid” ß-alanine,)

The foregoing description of the embodiments has been provided for purposes of illustration and not intended to limit the scope of the present disclosure. Individual components of a particular embodiment are generally not limited to that particular embodiment, but, are interchangeable. Such variations are not to be regarded as a departure from the present disclosure, and all such modifications are considered to be within the scope of the present disclosure.
The present disclosure is further described in light of the following experiments which are set forth for illustration purposes only and not to be construed for limiting the scope of the disclosure. The following experiments can be scaled up to industrial/commercial scale and the results obtained can be extrapolated to industrial scale.
EXPERIMENTAL DETAILS:
Experiment 1: Process for the preparation of sanitizing composition in accordance with the present disclosure
General procedure: A predetermined amount of colloidal silica (Prebona Odour control SC and Prebona Combifresh) was added in water under stirring at a 300 rpm for 5 minutes; followed by adding a metal compound under continuous stirring at 300 rpm for 5 minutes to obtain a first mixture. Predetermined amounts of a encapsulating agent and a first biocide were added under continuous stirring at 300 rpm for 10 minutes to obtain a second mixture. A predetermined amount of an insect repellent was added to the second mixture under continuous stirring at 300 rpm for 5 minutes to obtain a third mixture. Predetermined amounts of a second biocide and a surfactant were added to the third mixture under continuous stirring at 300 rpm for 10 minutes to obtain the sanitizing composition.
Process for the preparation of insect repellent:
The insect repellent is an emulsified essential oil.
1g of an Peppermint oil (essential oil), was mixed with 0.05g of Sorbitane monooleate under stirring at a speed of 300 rpm for 5 minutes followed by adding 0.26g of water and 0.05g of Polyoxyethylene (20) sorbitan monolaurate under stirring for 5 minutes to obtain the emulsified essential oil.
Example 1: Sanitizing composition in the form of an aerosol prepared in accordance with the present disclosure
The sanitizing composition of Example 1 is in the form of an aerosol, wherein a predetermined amount of propellant was added after addition of the surfactant.
Example 2: Sanitizing composition in the form of a film forming composition prepared in accordance with the present disclosure.
The sanitizing composition of Example 2 is in the form of a film, wherein a predetermined amount of binder was added prior to the addition of the metal compound. The addition of binder prior to the addition of the metal compound causes better dispersion of the ingredients.
Details of the ingredients used in Example 1 and Example 2 are provided in Table 2 below.
Table 2: The ingredients used in Example 1 and Example 2 of Sanitizing composition prepared in accordance with the present disclosure:
Sr.No. Function of the ingredient Ingredients Example 1 Example 2
Sanitizing composition in the form of an Aerosol
(mass%) Sanitizing composition in the form of a film
(mass%)
1 Fluid medium Water 52.04 23.37
2 Colloidal silica Prebona Odour control SC 25 25
3 Colloidal silica Prebona Combifresh 10 10
4 Additive-Binder KURARAY POVAL™ PVA-217S (15% soln) 0 20
5 Additive-Binder, plasticizer Polyethylene Glycol (PEG) 400 0 1
6 Metal containing compound ZnCoat WD 6.75 3.03
7 Additive-Encapsulating agent Beta Cyclodextrin 1 1
8
Insect repellant
Insect repellant- Essential Oil 1 1
First Emulsifier -Synperonic A9/ Span 80 (Sorbitane monooleate) 0.05 0.05
Fluid medium -Water 0.26 0.25
Second Emulsifier -Tween 20 (Polyoxyethylene (20) sorbitan monolaurate 0.05 0.05
9 Additive-Anionic fluorosurfactant Capstone FS 30 0.5 0.5
10 Additive-Surfactant Ethyl Carbitol Acetate 1 5
11 Biocide Arquad MCB 50 PO 0.05 0.05
12 Biocide-Antimicrobial Cylate 20-19 1 1
13 Biocide-Antifungal Thor DW 1.3 1.3
14 Dimethyl ether Propellant 35 0
15 Fluid medium Water - 7.4
Total 100 100
Characterization of the compositions
• Physicochemical properties
The composition prepared in Example 1 and Example 2 were tested for physicochemical properties. The results are tabulated in Table 3.
Table 3: Physicochemical properties of the composition prepared in
accordance with the Example 1 and Example 2 of the present disclosure:

Composition Example 1 Example 2
Specific gravity@30 degree centigrade 1.01 1.16
Viscosity@ 30 degree centigrade by Brookfield viscometer 46 65
pH at 30 degree centigrade 6.49 6.6
Application method used Spray applied Brush based
Ease of Application Good Good

From Table 3 it is observed that the Example 1 i.e. aerosol type sanitizing composition showed very good spray atomization performance as required for typical household sprays similarly, the Example 2 i.e. film forming type sanitizing composition showed the best brush application performance confirming its suitability for brush applied film forming sanitizing composition.
Experiment 2: Deodorizing and antimicrobial performance evaluation of the sanitizing composition in accordance with the present disclosure
A) Odour absorption performance Evaluation of sanitizing composition:
The composition prepared in accordance with the present disclosure was subjected for testing odour absorption performance by olfactory measurement, Gray wolf VOC meter and Air quality measurement equipment from Oizom. The details of each of the test methods and the test results are summarized below.
i) Odour absorption performance of experimental sets by monitoring the reduction of Malodor gaseous by gray wolf equipment.
GRAY WOLF VOC Meter: Gray wolf VOC (Volatile Organic Compounds) meter instrument was used for the measurement of malodours like ammonia, NO2, H2S, CO in ppm levels and TVOC in ppb levels.
Sample Preparation: 1 Litre of sanitizing composition was prepared as per Example 1.
Four sets of cementitious composite panels were taken. The composite panels were coated with one coat of interior primer and allowed to dry to obtain dried composite panels. Then two coats of the interior luxury category emulsion paint were applied on the dried composite panels followed by drying for 4 hours to obtain the paint dried composite panels. Further, one coat of the sanitizing composition prepared in accordance with the present disclosure was applied on dried composite panels. These dried composite panels were allowed to cure for 7 days at room temperature to obtain the composite panels coated with the sanitizing composition (Example 1) prepared in accordance with the present disclosure.
Control Preparation:
Four sets of cementitious composite panels were taken. The composite panels were coated with one coat of interior primer and allowed to dry to obtain dried composite panels. Then two coats of the interior luxury category emulsion paint were applied on the dried composite panels followed by drying for 4 hours to obtain the paint dried composite panels. These composite panels were allowed to cure for 7 days at room temperature.
Testing Procedure: The four sets of experimental panels were kept in an air tight chamber as shown in Figure 1(b) equipped with the grey wolf gas monitoring equipment. The known amount of toxic malodor gas was purged inside the closed chamber at 1 Litres per Minute (Lpm) for 5 mins and then purging of the malodor was stopped. The concentration of the gases was measured with respect to time, after 30 minutes, the profile of concentration with respect to time was plotted and depicted as the quantitative odour absorption performance.
Similar procedure was followed for the four panels of control and the concentration of malodor with respect to time was analyzed. All parameters like chamber size, amount of malodor inserted, temperature and humidity were kept constant in both cases for control and the composite panels coated with the sanitizing composition (Example 1) prepared in accordance with the present disclosure.
After the instrument recorded the data, it was graphically plotted.
Figure 2 illustrates the absorption of H2S gas by sanitizing composition of Example 1prepared in accordance with the present disclosure Vs Control.
From Figure 2 it is observed that the sanitizing composition (Example 1) prepared in accordance with the present disclosure shows 76.9% reduction in H2S gas with respect to control.
ii) Odour absorption performance (NO2 and SO2 absorption):
Air cleaning performance was tested on large panels (1 sq. ft).
Sample preparation: A panel was coated with premium exterior emulsion white paint followed by application of one coat of sanitizing composition (Example 1) in accordance with the present disclosure. The panel was cured for 7 days to obtain a panel coated with sanitizing composition prepared in accordance with the present disclosure.
Control preparation: A panel was coated with premium exterior emulsion white paint. The panel was cured for 7 days.
Both sample and control panels were then tested for their NO2 and SO2 absorption performance.
Testing procedure: Both sample and control panels were kept in a closed chamber equipped with the air quality measurement device. The known amount of the test gases (NO2 and SO2) were injected in a closed glass chamber having the air quality measurement device (Oizom). The reduction of the test gases at each 5 minutes interval were measured and recorded to ascertain the relative performance of toxic gas absorption, the % reduction in NO2 and SO2 are illustrated in Figure 4(a)- The reduction of NO2 gas by the Example 1 composition with respect to control and Figure 4(b)- The reduction of SO2 gas by the Example 1 composition with respect to control.
It is observed from Figure 4 (a) and (b) that the panels coated with the sanitizing composition prepared in accordance with the present disclosure demonstrated very good air quality performance as compared to the control panel in terms of reduction of the toxic gases NO2 and SO2. The panel coated with the sanitizing composition (Example 1) prepared in accordance with the present disclosure showed 38.66 % NO2 reduction and 23.23% SO2 reduction as compared to control panel.
iii) Odour absorption performance of experimental sets by Olfactory measurement for cigarette smoke removal.
Olfactory measurement: Dynamic Olfactometry Instrumental sensory measurements employ the human nose in conjunction with an instrument, called olfactometer, which dilutes the odour sample with odour-free air, according to precise ratios, in order to determine odour concentrations.
Sample preparation: Four test panels (1sq. ft. each) were coated with sanitizing composition prepared (Example 1) in accordance with the present disclosure and dried for 48 hours.
Control preparation: Four test panels (1sq. ft. each) were coated with Standard Commercial premium emulsion paint and dried for 48 hours.
Both the sets were used further for cigarette smoke test.
Testing procedure: Two acrylic air tight chambers (made up of transparent acrylic sheets) as shown in figure 5. were taken which can hold four test panels (1sq. ft. each). The four test panels of sample (sanitizing composition of Example 1) and control were put inside the chamber respectively, for cigarette smoke test. The chamber has a manual opening in the top, which has a closing arrangement (glass nob device) attached to it. The known amount of cigarette was burnt and were inserted simultaneously in both the chambers. The degree of the odour was then allowed to be smelled by the operators/assessors by opening the nob simultaneously for the sample Vs control as kept in respective chambers. Lower smell was given higher rating and the higher smell was given lower rating by the operators to rate their relative odour absorption performance.
Figure 5 shows Odour absorption test set up by chamber test – cigarette smoke odours test. The results are given in Table 4 below.
Table 4: Comparison between the sanitizing composition prepared in accordance with the present disclosure (Example 1) vs Control for Cigarette Smoke odour absorption performance.
Sample Description Odour Tester
1 Odour Tester 2 Odour Tester 3
Example 1 6 8 7
Control 2 3 2

NOTE: Rating 1= malodor maximum intensity Rating 10= Lowest intensity of malodor
The results clearly demonstrate that the sanitizing composition prepared in accordance with the present disclosure (Example 1) has significant odour reduction of cigarette smoke with respect to the Control Sample.
B) Evaluation of the long term sustenance of fragrance of essential oil (based on the sanitizing composition):
Sample preparation: White fabric cloth of dimension 5x20 cm2 was taken and the sanitizing composition prepared in accordance with the present disclosure (Example 1) (as such) was applied with a tool like brush.
Control preparation: White fabric cloth of same dimension 5x20 cm2 was taken and the sanitizing composition without the encapsulation composition of B cyclodextrin system (Example 1X) was applied with a tool like brush keeping equal deposition in both sample and control.
Testing procedure: The fabrics were kept 100 cms away from each other and left for 24 hours to dry at room temperature (as shown in Figure 6(a) an 6(b)).
Figure 6 illustrates fragrance sustenance test wherein (a) represents white fabric applied with sanitizing composition in accordance with the present disclosure and (b) represents white fabric applied with sanitizing composition without beta-cyclodextrin system;
Assessment of sustenance of fragrance release of essential oil: After 24 hours 3 assessors/operators were asked to analyse the fragrance retention on both the fabric clothes and give ratings.
Table 5: Sustenance of fragrance release of essential oil in sanitizing compositions
Sample Description Assessor 1 Assessor 2 Assessor 3
Example 1 7 6 7
Example 1X 2 2 3

The results of Table 5 showed the performance ratings in the scale from 0-10.
Note: Lower rating means low fragrance retention as observed by assessor and high rating means high fragrance retention as observed by the assessor. Rating = 1 lowest fragrance retention, Rating = 10 highest fragrance retention.
Result: The sanitizing composition with encapsulated emulsion stabilized Essential Oil (Example 1) had better fragrance retention in comparison to sanitizing composition with essential oil but without the encapsulating agent i.e. B-cyclodextrin (Example 1X). This clearly demonstrated the better Sustenance of fragrance by sanitizing composition prepared in accordance with the present disclosure (Example 1) due to encapsulation by Beta cyclodextrin as compared to sanitizing composition without B-cyclodextrin (Example 1X).
C) Antibacterial Performance Testing: The Assessment of antibacterial finishes on Textile materials AATCC 100-2019 was done with respect to commercial benchmark composition having claims of cloth disinfectant and odour eliminator.
Sample preparation: Sanitizing composition prepared in accordance with the present disclosure (Example 1), (spray based which is full composition without any propellent and using the conventional household spray bottles for application). Control composition: Commercial product with claims of cloth disinfectant and odour eliminator (fabric spray 500ml).
Both sample and control compositions were applied to the fabric/textile in a sweeping motion, maintaining 10-15 cm distance from the substrate. The compositions were applied to the fabric by taking care of equal deposition on fabrics by weight and ensuring proper wetting of the substrate. All of these parameters were kept constant for the two samples. Further the fabrics/textile materials were tested by the AATCC 100-2019 method.
Table 6: Sustainability of Antibacterial performance data
Tests Description of the Test Commercial product with claims of cloth disinfectant and odour eliminator Sanitizing composition prepared in accordance with the present disclosure (Example 1)
ATCC 4352 ATCC 6538 ATCC 4352 ATCC 6538
AATCC 100 Assessment of Antibacterial finishes on Textile materials AATCC 100-2019 [Before washing] 99.98 99.96 99.69 99.85
AATCC 100 Assessment of Antibacterial finishes on Textile materials AATCC 100-2019[After washing] No reduction No reduction 92.31 91.85

Table 6 clearly demonstrates that the sanitizing composition prepared in accordance with the present disclosure (Example 1) is superior to the commercially available product in the sustenance of Antibacterial Efficacy.
D) Antifungal Testing:
Antifungal Activity Study- Assessment on Textile Materials - Agar plate, Aspergillus niger AATCC 30 – 2013 was done on a fabric dipped in sanitizing composition prepared in accordance with the present disclosure (Example 1).
Sample Size : 3.8 ± 0.5 cm diameter disc, Media used: Mineral salt agar + Dextrose Test Organism : Aspergillus niger ATCC 6275, Incubation Conditions : 28 ±1°C for 7 days, Inoculum Size : Approximately 1.0 x 106 spores of fungi was prepared.
The following Table 7 shows the comparative result for Antifungal Test performed using Aspergillus niger ATCC 6275 for commercial product and sanitizing composition prepared by Example 1.
Table 7: Antifungal test report
Sample Aspergillus niger ATCC 6275
Visual Fungal Growth above specimen Microscopic Growth of Fungus Zone of inhibition(mm)
Commercial product with claims of textile disinfectant and deodorizer Present Present 0
Sanitizing composition prepared in accordance with the present disclosure (Example 1) Absent Absent 51.50

Table 7 shows that the commercial product with claims of textile disinfectant and deodorizer showed no Antifungal activity against Aspergillus niger ATCC 6275, when tested according to AATCC Test Method 30–2017, Method III. However, the sanitizing composition (Example 1) in accordance with the present disclosure showed very good anti-fungal performance.
E) Insect repellency test:
Two rooms of equal dimensions (170cm x 93 cm x 104 cm) were taken for insect repellency test.
One room half was painted with one coat of sanitizing composition (Example 1) in accordance with the present disclosure, over premium emulsion paint. Similarly the other room half was painted with commercially available spider repellent product over premium emulsion paint and the room was closed undisturbed for 30 days.
Figure 7 (d) illustrated that the application of commercially available spider repellent product showed beginning of cobwebs after 30 days
The results in the form of visual images represented in Figure 7 (a)-(d) illustrated that the sanitizing composition of the present disclosure showed comparable performance to commercially available spider repellence product even after 30 days of application.
It can be concluded that from the readings and experiments, the sanitizing composition has satisfactory properties as compared to a control composition.
Similar results were obtained by a film forming sanitizing composition of Example 2.
The sustained anti-microbial and deodorizing multi-surface sanitizing solution was successfully designed with very good ease of application and deodorizing performance when tested for cigarette smoke/ H2S gas reduction, anti- bacterial and anti-fungal performance, NO2 and SO2 reduction as well as sustained fragrance and insect repellency specifically with respect to spider to have cobweb free surfaces. The peelable composition can also enable sustained sanitization on frequently touched surfaces with the long term sanitization.
The present disclosure provides an anti-microbial and deodorizing multi-surface sanitizing composition. The composition is typically a clear water-based composition which is applied by brush, roller, spray, aerosol-based system and the like on various surfaces like painted walls, wood, metal, polymeric surfaces and can also be applied on pre-installed textile / leather surfaces by aerosol application / dipping method.
The actives present in the composition enable the composition to have the following properties in the context of improving indoor air quality and the wellbeing of occupants:
• the composition is easy to be applied on painted / non painted solid surfaces like masonry, wood, textile, leather, plastic, metal and the like by tools like brushes, rollers, sprayers, and aerosol-based systems;
• the composition absorbs malodours contributed by various sources like toilets/ urinals, cigarette smoke and other household malodours;
• the composition also absorbs toxic gases like NO2, SO2, H2S, Formaldehyde, and Ammonia;
• the composition is water based and ready to apply and enable surfaces with very good anti- bacterial and anti-fungal performances.
• the composition has actives which can repel household insects/bugs/ flies/ mites (including the household spiders) so as to offer cobweb free surfaces with improved hygiene. Sustained release of the actives is caused by the encapsulation of the actives;
• the composition can be made with various fragrances and encapsulated so as to have sustained release of the fragrance to provide the interiors with fresh ambience not only free from the malodour but also with fresh fragrances enabling the aromatherapy for the occupants (positively influencing the mood of the occupants); and
• the composition can also be converted to a peelable film which can be applied (by tools like brushes, rollers, sprayers, aerosol systems and the like) on high traffic areas (surfaces with multiple human touches) with high possibility of bacterial/ viral infection to enable sustained (few weeks against few hours of normal sanitizing compositions) anti-bacterial/ antiviral sanitization.
TECHNICAL ADVANCES AND ECONOMICAL SIGNIFICANCE
The present disclosure described herein above has several technical advantages including, but is not limited to, the realization of sanitizing compositions, that
? have sustained anti-microbial and deodorizing effects; and
? have sustained insect repellant property over a longer period of time;
and
process for the preparation of sanitizing compositions that
? are simple and economical; and
? environment friendly.
Throughout this specification the word “comprise”, or variations such as “comprises” or “comprising, will be understood to imply the inclusion of a stated element, integer or step,” or group of elements, integers or steps, but not the exclusion of any other element, integer or step, or group of elements, integers or steps.
The embodiments herein and the various features and advantageous details thereof are explained with reference to the non-limiting embodiments in the following description. Descriptions of well-known components and processing techniques are omitted so as to not unnecessarily obscure the embodiments herein. The examples used herein are intended merely to facilitate an understanding of ways in which the embodiments herein may be practiced and to further enable those of skill in the art to practice the embodiments herein. Accordingly, the examples should not be construed as limiting the scope of the embodiments herein.
The foregoing description of the specific embodiments so fully reveal the general nature of the embodiments herein that others can, by applying current knowledge, readily modify and/or adapt for various applications such specific embodiments without departing from the generic concept, and, therefore, such adaptations and modifications should and are intended to be comprehended within the meaning and range of equivalents of the disclosed embodiments. It is to be understood that the phraseology or terminology employed herein is for the purpose of description and not of limitation. Therefore, while the embodiments herein have been described in terms of preferred embodiments, those skilled in the art will recognize that the embodiments herein can be practiced with modification within the spirit and scope of the embodiments as described herein.
The use of the expression “at least” or “at least one” suggests the use of one or more elements or ingredients or quantities, as the use may be in the embodiment of the disclosure to achieve one or more of the desired object or results.
Any discussion of documents, acts, materials, devices, articles or the like that has been included in this specification is solely for the purpose of providing a context for the disclosure. It is not to be taken as an admission that any or all of these matters form a part of the prior art base or were common general knowledge in the field relevant to the disclosure as it existed anywhere before the priority date of this application.
The numerical values mentioned for the various physical parameters, dimensions or quantities are only approximations and it is envisaged that the values higher/lower than the numerical values assigned to the parameters, dimensions or quantities fall within the scope of the disclosure, unless there is a statement in the specification specific to the contrary.
While considerable emphasis has been placed herein on the components and component parts of the preferred embodiments, it will be appreciated that many embodiments can be made and that many changes can be made in the preferred embodiments without departing from the principles of the disclosure. These and other changes in the preferred embodiment as well as other embodiments of the disclosure will be apparent to those skilled in the art from the disclosure herein, whereby it is to be distinctly understood that the foregoing descriptive matter is to be interpreted merely as illustrative of the disclosure and not as a limitation. ,CLAIMS:WE CLAIM:
1. A sanitizing composition comprising,
a. 5 mass% to 40 mass% of colloidal silica;
b. 1 mass% to 10 mass% of a metal compound;
c. 0.05 mass% to 2 mass% of an insect repellent;
d. 0.01 mass% to 5 mass% of a biocide;
e. 1 mass % to 40 mass % of additives; and
f. q.s. water,
wherein said mass% of each ingredient is with respect to the total mass of said composition.
2. The composition as claimed in claim 1, wherein said additive is selected from a group consisting of a surfactant, an encapsulating agent, a propellent, and a binder.
3. The composition as claimed in claim 1, wherein said colloidal silica has a particle size in the range of 2 nm to 20 nm.
4. The composition as claimed in claim 1, wherein said metal compound is selected from the group consisting of zinc oxide, nano zinc oxide (nZnO), copper oxide and silver oxide.
5. The composition as claimed in claim 1, wherein said insect repellent is an emulsified essential oil.
6. The composition as claimed in claim 5, wherein
• said essential oil is selected from the group consisting of Citronella oil, Lemon grass oil, Eucalyptus oil, Peppermint oil, Lavender oil, Rosemerry oil, and Chamomile oil; and
• an emulsifier used in said emulsified essential oil is selected from a first emulsifier and a second emulsifier independently selected from the group consisting of Polyoxyethylene (80) sorbitan monooleate, Polyoxyethylene (20) sorbitan monolaurate, Sorbitane monooleate, fatty acid ethoxylates and alcohol ethoxylates.
7. The composition as claimed in claim 1, wherein said biocide is selected from a first biocide and a second biocide, wherein
• said first biocide is selected from the group consisting of coco (fractionated) benzyldimethylammonium chloride and zinc pyrithone; and
• said second biocide is selected from the group consisting of 2-n-octyl-4-isothiazolin, ethanol, silane functional tetraalkylammonium compound in a high boiling glycol ether, and 3-[N-n-butyl-N-acetyl]aminopropionic acid ethylester.
8. The composition as claimed in claim 2, wherein
• said surfactant is selected from the group consisting of ethyl carbitol acetate and ethoxylated fluorosurfactants;
• said encapsulating agent is selected from the group consisting of beta-cyclodextrin and mesoporous silica;
• said propellant is selected from the group consisting of dimethyl ether and liquified petroleum gas; and
• said binder is selected from the group consisting of polyvinyl alcohol, polyethylene glycol, polyvinyl butyral and cellulose acetate butyrate.
9. A process for preparing a sanitizing composition, said process comprising the following steps:
a. mixing a predetermined amount of colloidal silica in water under stirring for a time period in the range of 5 minutes to 10 minutes; followed by adding a predetermined amount of a metal compound under stirring for a time period in the range of 5 minutes to 10 minutes to obtain a first mixture;
b. adding predetermined amounts of an encapsulating agent and a first biocide to said first mixture under stirring for a time period in the range of 5 minutes to 10 minutes to obtain a second mixture;
c. adding a predetermined amount of an insect repellent to said second mixture under stirring for a time period in the range of 5 minutes to 10 minutes to obtain a third mixture; and
d. adding predetermined amounts of a second biocide and a surfactant to said third mixture under stirring for a time period in the range of 5 minutes to 20 minutes to obtain said sanitizing composition.
10. The process as claimed in claim 9, wherein a predetermined amount of a binder is added in said step a) under stirring to obtain said sanitizing composition in the form of a film.
11. The process as claimed in claim 10, wherein said predetermined amount of said binder is in the range of 0 mass% to 25 mass% with respect to the total amount of said sanitizing composition.
12. The process as claimed in claim 10, wherein said binder is selected from the group consisting of polyvinyl alcohol, polyethylene glycol, polyvinyl butyral and cellulose acetate butyrate.
13. The process as claimed in claim 9, wherein a predetermined amount of a propellant is added in said step d) under stirring to obtain said sanitizing composition in the form of an aerosol.
14. The process as claimed in claim 13, wherein said predetermined amount of said propellant is in the range of 0 mass% to 40 mass% with respect to the total mass of said sanitizing composition.
15. The process as claimed in claim 13, wherein said propellant is selected from the group consisting of dimethyl ether and liquified petroleum gas.
16. The process as claimed in claim 9, wherein said stirring is done at a speed in the range of 200 rpm to 500 rpm.
17. The process as claimed in claim 9, wherein said predetermined amount of said colloidal silica is in the range of 5 mass% to 40 mass% with respect to the total mass of said sanitizing composition.
18. The process as claimed in claim 9, wherein said predetermined amount of said metal compound is in the range of 1 mass% to 10 mass% with respect to the total mass of said sanitizing composition.
19. The process as claimed in claim 9, wherein said metal compound is selected from the group consisting of zinc oxide, nano-zinc oxide, copper oxide and silver oxide.
20. The process as claimed in claim 9, wherein said predetermined amount of said encapsulating agent is in the range of 0.05 mass% to 2 mass% with respect to the total mass of said sanitizing composition.
21. The process as claimed in claim 9, wherein said encapsulating agent is selected from the group consisting of beta-cyclodextrin and mesoporous silica.
22. The process as claimed in claim 9, wherein
• said predetermined amount of said first biocide is in the range of 0.01 mass% to 0.5 mass% with respect to the total mass of said sanitizing composition; and
• said predetermined amount of said second biocide is in the range of 0.5 mass% to 4.5 mass% with respect to the total mass of said sanitizing composition.
23. The process as claimed in claim 9, wherein
• said first biocide is selected from the group consisting of coco (fractionated) benzyldimethylammonium chloride, and zinc pyrithone; and
• said second biocide is selected from the group consisting of 2-n-octyl-4-isothiazolin, ethanol, silane functional tetraalkylammonium compound in a high boiling glycol ether, and 3-[N-n-butyl-N-acetyl]aminopropionic acid ethylester.
24. The process as claimed in claim 9, wherein said predetermined amount of said insect repellent is in the range of 0.05 mass% to 2 mass% with respect to the total mass of said sanitizing composition.
25. The process as claimed in claim 9, wherein said insect repellent is an emulsified essential oil, wherein said insect repellent is prepared by mixing predetermined amounts of an essential oil, and a first emulsifier under stirring at a speed in the range of 200 rpm to 500 rpm for a time period in the range of 2 minutes to 15 minutes followed by adding predetermined amounts of water and a second emulsifier under stirring for a time period in the range of 2 minutes to 15 minutes.
26. The process as claimed in claim 25, wherein said predetermined amount of said essential oil is in the range of 0.05 mass% to 10 mass% with respect to the total mass of said sanitizing composition.
27. The process as claimed in claim 25, wherein said essential oil is at least one selected from the group consisting of Citronella oil, Lemon grass oil, Eucalyptus oil, Peppermint oil, Lavender oil, Rosemerry oil, Chamomile oil or a combination thereof.
28. The process as claimed in claim 25, wherein a predetermined amount of said first emulsifier is in the range of 0.01 mass% to 5 mass% and a predetermined amount of said second emulsifier is in the range of 0.01 mass% to 5 mass% with respect to the total mass of said sanitizing composition and said predetermined amount of water is in the range of 0.1 mass% to 0.5 mass% with respect to the total mass of said sanitizing composition.
29. The process as claimed in claim 25, wherein said first emulsifier and said second emulsifier are independently selected from the group consisting of Polyoxyethylene (80) sorbitan monooleate and Polyoxyethylene (20) sorbitan monolaurate, Sorbitane monooleate, fatty acid ethoxylates and alcohol ethoxylates.
30. The process as claimed in claim 9, wherein said predetermined amount of said surfactant is in the range of 0.05 mass% to 10 mass% with respect to the total mass of said sanitizing composition.
31. The process as claimed in claim 9, wherein said surfactant is selected from the group consisting of ethyl carbitol acetate and ethoxylated nonionic fluorosurfactants.

Dated this 14th day of March, 2024

_______________________________
MOHAN RAJKUMAR DEWAN, IN/PA – 25
OF R.K.DEWAN & CO.
AUTHORIZED AGENT OF APPLICANT

TO,
THE CONTROLLER OF PATENTS
THE PATENT OFFICE, AT MUMBAI