TECHNICAL FIELD
The present disclosure relates to a protective face mask capable of killing germs and viruses. Typically, the present invention relates to a three-layered face mask that can be reused and a method for manufacturing the same.
BACKGROUND OF THE INVENTION
The background information herein below relates to the present disclosure but is not necessary a prior art.
Since the outbreak of Coronavirus-2 (SARS-CoV-2), commonly known as Covid-19 from 2019, there has been millions of deaths worldwide. Coronavirus-2 is an airborne virus which travels through air and has the tendency to suspend in air as droplets from few seconds to few minutes. Whenever the virus in the form of droplets is inhaled, it can cause serious respiratory problems.
Regular sanitization of hands and wearing face mask is the main prevention that can be done to reduce the spreading of the virus. Facemask provides first wall in defense of such pathogenic virus which spreads through air. Various types of masks are available in the market such as surgical mask, N95 mask etc. However, these masks are not very efficient in prevention of spreading of virus as surgical masks are loose fitted disposable masks that are not efficient in filtering the small sized virus. Further, the surgical mask does not kill the virus and cannot be reuse again.
N95 masks provides more protection than the surgical masks by filtering dust particles to small particles. However, like surgical masks, N95 masks are also disposable and cannot be reused. Further N95 masks have valves attached to the masks which do not filer the air which wearer breathes out and can cause suffocation to the wearer.
Masks made from cloths can absorbs the droplets coming through the wearer's mouth while talking or breathing and prevents wearer from inhaling the microbes and virus. The protection of the said masks can be improved by adding more than two layers of cloth. These cloth masks can be reused after washing them properly. However, these mask does not self-sterilize itself by killing the virus.
Hence, there is felt a need for a face mask that mitigates the aforesaid drawbacks.

OBJECTIVE OF THE INVENTION
Some of the objectives of the present disclosure, which at least one embodiment herein satisfies, are as follows:
It is an object of the present disclosure to ameliorate one or more problems of prior art or to at least provide a useful alternative.
An object of present disclosure is to provide reusable protective face mask.
Another object of the present disclosure is to provide an efficient reusable 3 ply mask having antiviral properties using a combination of nano silver particles and nano copper particles.
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 OF THE INVENTION
According to an aspect of the present invention, there is provided a protective mask configured to protect a user from microorganism, said protective face mask comprises: an outer layer coated with silver nano particles; a non-coated inner layer ; a middle layer (204) coated with conductive copper, is positioned between the outer layer (202) and the non-coated inner layer (206), wherein said conductive copper coating is comprised of three layers: a dielectric layer; a nano copper layer; a foundation layer coated between the dielectric layer and the nano copper layer; and wherein the dielectric layer is configured to eliminate the microorganisms by charging copper particles of said nano copper layer.
In accordance with one of the embodiment of the present invention, the inner layer and outer layer of the protective face mask is made of non-woven cloth comprises of polypropylene.
In accordance with one of the embodiment of the present invention, the outer layer of the protective face mask is 50 GSM and inner layer of the protective face mask is 25 GSM respectively.
In accordance with one of the embodiment of the present invention, the middle layer of the protective face mask is made of 25 GSM SSMMS cloth. SSMMS Nonwoven fabric is referred for the short form of Spunbond*2 + Meltblown*2+ Spunbond. SSMMS is a kind of Nonwoven fabric that has five-layered 100% Polypropylene Nonwoven materials. This fabric is made of Spunbond and Meltblown Nonwoven materials.

In accordance with one of the embodiment of the present invention, the protective face mask is washable and reusable.
In accordance with one of the embodiment of the present invention, the protective face mask provides protection against microorganism includes but not limited to bacteria, fungus or viruses.
In accordance with one of the embodiment of the present invention, the outer layer of the protective face mask is prepared by spraying silver nano particles on the polypropylene cloth.
In accordance with one of the embodiment of the present invention, the middle layer (204) of the protective face mask is prepared by spraying foundation layer on the dielectric layer and then nano copper particles are spayed on foundation layer.
The following detailed description is illustrative and is not intended to be in any way limiting. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features will be apparent by reference to the following detailed description in conjunction with the accompanying drawings.
Many other advantages and features of the present invention will become manifest to those versed in the art upon making reference to the detailed description and the accompanying sheets of drawings in which a preferred structural embodiment incorporating the principles of the present invention is shown by way of illustrative example.
BRIEF DESCRIPTION OF THE ACCOMPANYING DRAWING
The protective face mask of the present disclosure will now be described with the help of the accompanying drawing, in which
Figure 1 illustrates the overview of the protective face mask; and
Figure 2 illustrates exemplified view of the three-layered protective face mask.
DETAILED DESCRIPTION
The following is a detailed description of embodiments of the disclosure depicted in the accompanying drawings. The embodiments are in such detail as to clearly communicate the disclosure. However, the amount of detail offered is not intended to limit the anticipated variations of embodiments; on the contrary, the intention is to cover all modifications,

equivalents, and alternatives falling within the spirit and scope of the present disclosure as defined by the appended claims.
The terminology used herein is for the purpose of describing embodiments only and is not intended to be limiting the invention. As used herein, the term "and/or" included any and all combinations of one or more of the associated listed items. As used herein, the singular forms "a", "an", and "the" are intended to include the plural forms as well as the singular forms, unless the context clearly indicates otherwise.
Unless, otherwise stated or defined, all terms used herein shall have the same meaning as commonly understood by one having ordinary skilled in the art to which this invention belongs. It will further be understood that terms, such as those defined in commonly used dictionaries, must be interpreted as having a meaning in the context of the relevant art and the present disclosure and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
Reference now will be made in detail to embodiments of the invention, one or more examples of which are illustrated in the drawings. Each example is provided by way of explanation of the invention, not limitation of the invention. In fact, it will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the scope or spirit of the invention. For instance, features illustrated or described as part of one embodiment can be used with another embodiment to yield a still further embodiment. Thus, it is intended that the present invention covers such modifications and variations as come within the scope of the appended claims and their equivalents.
The present disclosure envisages a protective face mask that overcomes the drawbacks of the conventional face masks.
In accordance with an aspect of the present disclosure, a protective face mask is disclosed.
The present disclosure discloses a protective face mask (200) comprising three layers of nonwoven cloth, wherein the outer layer (202) is coated with silver nano particles, middle layer (204) is coated with conductive layer and the inner layer (206) is non coated to impart maximum benefit to the wearer.
Figure 1 illustrates three different layers of non-woven face mask (100) with their specific coatings are acquired and improvised to fulfil the objective of present disclosure. In accordance

with the present disclosure, the protective face mask (100) comprises upper spandex (1 A), loop (1B), ear bead (1C), neck loop (1D), lower spandex (1E) and mask covering face (1F).
Figure 2 illustrates a protective face mask (200) comprising three protective layers. The outer layer (202) is made of polypropylene (PP) and thickness of the PP layer is 40 gsm, the middle layer (204) is 125 GSM SSMMS cloth, coated with conductive copper, further comprises a inner layer (206) of 25 gsm PP cloth with no coating.
In accordance with an aspect of the present disclosure, the conductive copper coating has three layers i.e., (i) dielectric layer, (ii) foundation layer and (iii) nano copper layer. The dielectric layer which is responsible for charging the copper particles to eliminate viruses using mild electricity.
In accordance with another aspect of the present disclosure, a process for preparing the protective face mask is provided.
The outer layer of the protective mask (202) is prepared by spraying silver nano particles on 50 gsm PP cloth. The PP cloth is first hanged between two poles and with the help of a compressor and spray gun, the silver nano coating is sprayed over the PP cloth for not more than 5 seconds per travel. The sprayed PP cloth is then allowed to dry for 30 minutes. The nano silver coating is flammable till it dries and becomes inflammable post drying.
In accordance with an aspect of the present disclosure, the middle layer (204) of mask is coated with conductive copper comprising three layers i.e., Di electric layer, Foundation layer and Nano copper layer. Initially, the Di electric layer is sprayed first and after two minutes the foundation layer is coated. After two minutes, the copper Nano layer is coated and is left for drying for 30 minutes. Once the layer is dried, the dried layer is kept in a cool environment.
In accordance with an aspect of the present disclosure, the 50 gsm cloth is M/s Park Non-woven spun bound material.
The silver nanoparticles provide antiviral protection to the mask with antimicrobial properties and the conductive copper layer helps in attaching the viral particles to itself and inactivating the virus by its charge, thereby keeping public including the health workers safe from germs and viruses.
In accordance with an aspect of the present disclosure, the Silver Nano coating is jointly made by the inventors of the present disclosure and M/s Reinste Nano ventures. The silver nano

coating has been further approved by DBST and tested by NFSU, GUJARAT to eliminate the corona viruses in 30 minutes.
In accordance with an aspect of the present disclosure, the protective face mask is capable of eliminating or killing 100 percent of air borne corona viruses and germs in 30 minutes as per tests by NFSU, GUJRAT and ISO 21702 testing norms as shown in table below:

The protective face mask of the present disclosure is cost effective, reusable and easily accessible to the health workers and public, thereby providing protection against viral or bacterial infection transmitted through the air.
TECHNICAL ADVANCEMENTS
The present disclosure described herein above has several technical advantages including, reusability and highly efficient in killing air borne germs and viruses including corona virus within 30 minutes.
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 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 objects or results. While certain embodiments of the disclosure have been described, these embodiments have been presented by way of example only, and are not intended to limit the scope of the disclosure. Variations or modifications to the formulation of this disclosure, within the scope of the invention, may occur to those skilled in the art upon reviewing the disclosure herein. Such variations or modifications are well within the spirit of this disclosure.

The numerical values given for various physical parameters, dimensions and quantities are only approximate values and it is envisaged that the values higher than the numerical value assigned to the physical parameters, dimensions and quantities fall within the scope of the disclosure unless there is a statement in the specification to the contrary.
While considerable emphasis has been placed herein on the specific features of the preferred embodiment, it will be appreciated that many additional features can be added and that many changes can be made in the preferred embodiment without departing from the principles of the disclosure. These and other changes in the preferred embodiment 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.

I/We Claim
1. A protective face mask (200) configured to protect a user from microorganism, said protective
face mask comprises:
an outer layer (202) coated with silver nano particles;
a non-coated inner layer (206);
a middle layer (204) coated with conductive copper, is positioned between the outer layer (202) and the non-coated inner layer (206), wherein said conductive copper coating is comprised of three layers:
a dielectric layer;
a nano copper layer;
a foundation layer coated between the dielectric layer and the nano copper layer; and
wherein the dielectric layer is configured to eliminate the microorganisms by charging copper particles of said nano copper layer. The protective face mask (200) as claimed in claim 1, wherein the inner layer (202) and outer layer (206) is made of non-woven cloth comprises of polypropylene.
2. The protective face mask (200) as claimed in claim 1, wherein the outer layer (206) is 50 GSM and inner layer is 25 GSM respectively.
3. The protective face mask (200) as claimed in claim 1, where the middle layer (204) is made of 25 GSM SSMMS cloth.
4. The protective face mask (200) as claimed in claim 1, wherein the protective face mask is washable and reusable.
5. The protective face mask (200) as claimed in claim 1, wherein the microorganism includes but not limited to bacteria, fungus or viruses.

6. The protective face mask (200) as claimed in claim 1, wherein the outer layer (202) of the protective face mask (200) is prepared by spraying silver nano particles on the polypropylene cloth.
7. The protective face mask (200) as claimed in claiml, wherein the middle layer (204) of the protective face mask (200) is prepared by spraying foundation layer on the dielectric layer and then nano copper particles are spayed on foundation layer.