FORM 2
THE PATENTS ACT, 1970
(39 of 1970)
&
THE PATENTS RULES, 2003
COMPLETE SPECIFICATION
(See Section 10 and Rule 13) COOLING FINISH ON FABRICS
RELAINCE INDUSTRIES LIMITED
An Indian Company of 3rd Floor, Maker Chamber-IV, 222, Nariman Point, Mumbai 400 021, Maharashtra, India.
THE HOLLOWING SPECIFICATION PARTICULARLY DESCRIBES THE INVENTION AND THE MANNER IN WHICH IT IS TO BE PERFORMED

FIELD OF INVENTION
The invention relates to a finish on the fabric.
This invention particularly envisages a finish formulation which provides a cooling effect
to the fabric and a process for preparing a fabric having cooling and anti-microbial effect.
BACKGROUND
There are many parts of the world and many months of the year where atmospheric temperature remains very high. It is further accentuating with 'Global Warming'. In hot climatic conditions, it is very difficult for people to wear the formal cloths or official wears. Furthermore, because of heat problems associated with the clothing, there is always a demand for air conditioned environment at working places. Accordingly, it is desirable to find a solution or treatment by which the fabric/apparel can remain cool under hot atmospheric conditions. There have been few efforts in the past to provide cool fabrics. In one effort, moisture management technique is utilized at the fiber level or fabric construction level which wicks-out the perspiration from the skin to exterior of the fabrics and dries it. In another effort, specific types of dye-stuffs and other chemicals arc utilized which claims to reduce the heating of fabric/apparel under hot sunlight conditions. Both the available techniques are complicated, lengthy and costly. Thus these techniques have limited applications.
Furthermore, in hot and humid conditions, it is desirable that the fabric/apparel has non-smelliness and anti-microbial effect along with cooling effect.
The most common technology for making durable anti-microbial apparel fabric is to introduce silver ion at the polymerization stage of the fibre manufacturing or to treat the fabric with nano- silver ions during finishing. But silver ion has many adverse effects on human being as well as on environment such as:

i) When human skin cells grown in a Petri-dish were exposed to nano-silver particles 7-20nm in size, concentration dependent changes to cell morphology including abnormal size, shrinkage and rounded appearance were observed at concentrations above 6.25 microgm/ml.
ii) Nano silver has also some adverse effect on wound. After a week of treatment with a wound dressing impregnated with nano silver, the patient developed reversible sign of liver toxicity and a grayish dis-colouration of his face similar to that found in patient diagnosed with argyria.found. When wound dressing was removed, the clinical symptoms returned to normal in ten months.
iii) Nanosilver has recently been found at concentration as low as 0.14 microgm/ml to be toxic to several species of nitrifying bacteria, which play an important role in the environment by converting ammonia in the soil to a form of nitrogen that can be used by plants. Increase in mass usage of Silver treated AMB fabric and the effluent generated during home laundering of garments may contaminate soil /water.
iv) Nanosilvers primary use as an antimicrobial has attracted the attention of the US Environment protection Agency which enforce the federal insecticides. Fungicide and Rodenticide Act(FIFRA). Also in Europe, the key question is whether nano-silver will be considered a new substance and therefore subjected to the rigorous notification procedure required under REACH law.
Nanosilver can not be filtered out fully in Effluent Treatment Plant (ETP) and likely to cause soil and water contamination. Also the presence of Silver ion in the effluent water increases the load on Effluent treatment plant substantially. Nano-silver ion based AMB technology has been known to require several precautions in application as well as many costly modifications in effluent water treatment process.

(Ref:- Environmental Impact of Nanosilver—by Kristen M. Kulinowski, Ph. D - Nov 18 - 2008)
Other chemical used for producing durable antimicrobial (AMB) fabric is 3- trimcthoxy silyl propyl dimethyl octadecyl ammonium chloride - but it has also some disadvantages
- yellowing of the shade / colour of the fabric.
- it is a cationic compound - If any anionic detergent is used during home laundering, it will take out the cationic compound from the fabric making the antimicrobial effect less durable.
Accordingly, it is desirable to develop a finish formulation using readily available and cost effective chemicals which provides cooling finish and anti-microbial finish to fabric for prolong period of time. Also it is desirable to develop a simple, cost effective and environment friendly process for preparing fabrics having anti-microbial and cooling effect.
OBJECTS OF THE INVENTION
The main object of the present invention is to provide a formulation meant for providing cooling finish to fabrics.
Another object of the present invention is to provide a fabric with cooling effect.
Still another object of the present invention is to provide a fabric with a cooling finish which is durable.
Yet another object of the present invention is to provide a fabric with anti-microbial finish and cooling finish which does not alter the tone, colour, hand feel and appearance of the fabric.

Further object of the present invention is to provide a finish formulation which is sale for human being as well as for the environment.
Still further object of the present invention is to provide a cost effective and environment friendly method for preparing fabrics having cooling and anti-microbial properties.
Definitions:
As used in the present specification, the following words and phrases arc generally intended to have the meanings as set forth below, except to the extent that the conlcxl in which they are used indicates otherwise.
Grey Fabric: The fabric which has not been subjected to washing or any chemical processing.
Scouring: It is a process in which the grey fabric is subjected to washing with the help of synthetic detergents and stain removers in order to remove dirt, dust . stains and various oily substances from the fabric and making it suitable for further chemical & Mecanical processing.
Dyeing: It is a process where different types of dye stuffs are impregnated into the fabric in order to achieve the desired colour.
Singeing: In this process the fabric is made to pass over a series of flames across the entire width to burn out the fibres protruding from the fabric surface. This is done to make the fabic surface smooth.
Crabbing: Crabbing sets the cloth and yarn twist by rotating the fabric over cylinders through a hot-water bath, or through a series of progressively hotter baths, followed by a

cold-water bath. Crabbing is done to stabilize the fabric before dyeing and finishing and is necessary only for wool fabrics.
Heat Setting: It means a process of conferring stability upon fibres, yarns, or fabrics, by means of dry heat.
Shearing : In this process the fabic is passed over a set of rotating helical blades. acroos the witdth of the fabric to clean the surface hairs.
Decatising : Decatising is a finishing treatment whereby a fabric's physical and dimensional form is enhanced and then stabilised by the use of heat, moisture, pressure and time. Generally, a pressure decatising method produces a permanent change in fabric properties by the action of heat and pressurised steam at greater than 100 kPa (1 atm) pressure on a mechanically constrained fabric, and is usually performed during the final stages of fabric production for several reasons: (a) to develop desirable aesthetic qualities in the fabric such as handle, lustre and smoothness, (b) to improve the dimensional stability of the fabric particularly for purposes of garment assembly, (c) to permanently set or preserve these qualities during fabric use.
Pick-up % : It is the quantity of the solution absorbed by the fabric after sqec/ing. express as the percentage to the weight of the dry fabric. Pick-up % is calculated as below

GSM - Grains per square meter Gpl — Grains / Litre

Stentcr - Stenter is an open width finishing machine where the fabric passes through a set of chambers, with provision of hot air blowing. This machine can be used for drying and heat setting of fabric. PV : Polyester/Viscose PW : Polyester / Wool
SUMMARY OK THE INVENTION
In accordance with the present invention there is provided a formulation comprising:
- at least one phenolic compound ;
- at least one cooling agent; and
- at least one alcohol.
said formulation being capable of rendering cooling and anti-microbial finish to fabrics.
In accordance with one of the embodiment of the present invention the formulation further comprises hydrophilic finish, at least one binder and at least one surfactant.
Typically, the phenolic compound is selected from the group consisting of 2-chloro-5-hydroxy-1,3-dimethylbenzene; 2-chloro-5-hydroxy-m-xylene; 4-chloro-3.5-xylenol; 4-chloro-3,5-dimethylphenol; 4-chloro-5,3-dimethylphenol; 4-chloro-m-xylenol; p-chloro-3,5-xylenol and p-chloro-m-xylenol.
Typically, the phenolic compound is chloroxylenol.
Typically, the cooling agent is selected from the group consisting of 2-(4-Methyl- 1-cyclohex- 3-enyl) propan- 2-ol (Terpineol), pine oil, pine seed oil and pine needle oil.
Typically, the alcohol is isopropanol.

Typically, the fabric is selected from the group consisting of wool, cotton, silk, linen, hemp, ramie, jute, rayon, nylon, polyester, aramid, acrylic, spandex, olefin fibre. polyester viscose, polyester wool, modacrylic olefin acrylic polyester. PTFE, PP, PPE. carbon fiber, vinyon, saran, vinalon, modal, sulfar, polybenzimidazole fibre, PLA. iyocell. orlon, vectran, zylonacrylonitrile and combinations thereof.
In accordance with another aspect of the present invention there is provided a process for preparing a fabric with cooling and anti-microbial finish; said process comprising the following steps:
- providing a fabric selecting from the group consisting of wool, cotton, silk, linen, hemp, ramie, jute, rayon, nylon, polyester, aramid, acrylic, spandex, olefin fibre. polyester viscose, polyester wool, modacrylic olefin acrylic polyester. PTFE. PP. PPE. carbon fiber, vinyon, saran, vinalon, modal, sulfar, polybenzimidazole fibre. PLA, lyocell orlon. vectran, zylonacrylonitrile and combinations thereof:
- subjecting the fabric to pre-treatment;
- providing a finish formulation comprising i) at least one phenolic compound, ii) at least one cooling agent, and iii) at least one alcohol;
- applying said formulation onto the fabric at a temperature of about 25 to 50 °C: and
- subjecting the fabric to post-treatment to obtain a fabric with cooling and anti-microbial finish.

Typically, the pre-treatment comprises at least operation selected from the group consisting of scouring, drying, heat setting on stenter, dyeing, singeing, crabbing and shearing.
Typically, the post-treatment comprises at least one operation selected from the group consisting of drying, pressing and kier decasting.
Typically, the process further comprises a step of incorporating hydrophilic finish, at least one binder and at least one surfactant into the fabric before the post-treatment step.
DETAILED DESCRIPTION OF THE INVENTION
In accordance with the present invention there is provided a formulation comprising:
- at least one phenolic compound;
- at least one cooling agent; and
- at least one alcohol,
said formulation being capable of rendering cooling and anti-microbial finish to fabrics.
In accordance with one of the embodiment of the present invention the formulation further comprises hydrophilic finish, at least one binder and at least one surfactant.
Typically, the phenolic compound is selected from the group consisting of 2-chloro-5-hydroxy-l,3-dimethylbenzene; 2-chloro-5-hydroxy-m-xylene; 4-chloro-3.5-xylenol; 4-chloro-3,5-dimethylphenol; 4-chloro-5,3-dimethylphenol; 4-chloro-m-xylenol; p-chloro-3,5-xylenol and p-chloro-m-xylenol.
Typically, the phenolic compound is chloroxylenol.

Typically, the cooling agent is selected from the group consisting of 2-(4-Melhyl- 1-cyclohex- 3-enyl) propan- 2-ol (Terpineol), pine oil. pine seed oil and pine needle oil.
Typically, the alcohol is isopropanol.
Typically, the fabric is selected from the group consisting of wool, cotton, silk, linen, hemp, ramie, jute, rayon, nylon, polyester, aramid, acrylic, spandex, olefin fibre. polyester viscose, polyester wool, modacrylic olefin acrylic polyester, PTFE, PP. PPK. carbon fiber, vinyon. saran, vinalon, modal, sulfar, polybenzimidazole fibre, PLA. Iyocell, orlon, vectran, zylonacrylonitrile and combinations thereof.
In accordance with another aspect of the present invention there is provided a process for preparing a fabric with cooling and anti-microbial finish; said process comprising the following steps:
- providing a fabric selecting from the group consisting of wool, cotton, silk, linen, hemp, ramie, jute, rayon, nylon, polyester, aramid, acrylic, spandex, olefin fibre. polyester viscose, polyester wool, modacrylic olefin acrylic polyester, PTFH. PP. PPE, carbon fiber, vinyon, saran, vinalon, modal, sulfar, polybenzimidazole fibre. PLA, lyocell, orlon, vectran, zylonacrylonitrile and combinations thereof;
- subjecting the fabric to pre-treatment;
- providing a finish formulation comprising i) at least one phenolic compound, ii) at least one cooling agent, and iii) at least one alcohol:
- applying said formulation onto the fabric at a temperature of about 25 to 500C: and

- subjecting the fabric to post-treatment to obtain a fabric with cooling and anti-microbial finish.
Typically, the pre-treatment comprises at least operation selected from the group consisting of scouring, drying, heat setting on stenter, dyeing, singeing, crabbing and shearing.
Typically, the post-treatment comprises at least one operation selected from the group consisting of drying, pressing and kier decasting.
Typically, the process further comprises a step of incorporating hydrophilic finish, at least one binder and at least one surfactant into the fabric before the post-treatment step.
In accordance with one embodiment of the present invention, the process is further
described with the help of a figure (Figure 1).
Initially, the finish formulation of the present invention & binder are added in a finishing
Tank (I) along with normal finishing chemicals. The final solution goes to the mangle (5)
for padding where fabric picks up the solution and the fabric passes through a set of
squeezing rollers (6) to squeeze the excess solution.
The pickup is about 55% to 70%. After this, fabric enters into a heating chamber of
stenter for drying.
The invention will now be described with respect to the following examples which does not limit the invention in any way and only exemplify the invention.
Example 1: Preparation of finish formulation (basic formulation)
The finish formulation was prepared using the following ingredients.

Sr.
No. Ingredients Quantity
1 Isopropyl alcohol 985 ml
2 chloroxylenol 10 gm
3 terpineol 5 ml
Example 2: Preparation of PW suiting fabrics


Technical Advancement and Economic Significance:
The fabric of the present invention provides cooling effect to the user during hot conditions.
- The fabric of the present invention has unique properties such as holding the moisture and reflecting IR & UV rays.
- The fabric of the present invention reduces perspiration.
- Due to hydrophilic finish, the sweat wicks to the surface and evaporate faster which in turn further improve the cooling effect.
- The fabric of the present invention further provides ant-microbial effect.
- The fabric with an anti-microbial and cooling finish of the present invention is durable upto 100 home launderings as well as to various abrasion and weathering conditions.
- The chemicals used in the formulation are completely safe for human being as well as for environment. The formulation is also non -cytotoxic as tested by test method no. ISO 10993-5:2009.
- Application of finish does not require any change in the normal processing sequence of the fabrics. A finish formulation is added along with normal finish at chemical finishing stage in the processing sequence. It is compatible with all the normal finishes applied to fabrics.
ft does not alter the tone, colour, hand-feel and appearance of the fabric, which is of very high importance in consumer and apparel fabrics.
- It is the most cost effective method of making durable cool and anti- microbial
apparel fabric.
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 invention, unless there is a statement in the specification specific 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 invention. These and other changes in the preferred embodiment of the invention 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 invention and not as a limitation.

We claim
1. A formulation comprising:
a. at least one phenolic compound ;
b. at least one cooling agent; and
c. at least one alcohol.
said formulation being capable of rendering cooling and anti-microbial finish to fabrics.
2. The formulation as claimed in claim 1. further comprises hydrophilic finish, at least one binder and at least one surfactant.
3. The formulation as claimed in claim 1. wherein the phenolic compound is selected from the group consisting of 2-chloro-5-hydroxy-l,3-dimethylbenzene; 2-chloro-5-hydroxy-m-xylene; 4-chloro-3,5-xylenol; 4-chloro-3.5-dimethylphenol; 4-chloro-5.3-dimethylphenol; 4-chloro-m-xylenol; p-chloro-3,5-xylenol and p-chloro-m-xylenol.
4. The formulation as claimed in claim 1, wherein the phenolic compound is chloroxylenol.
5. The formulation as claimed in claim 1, wherein the cooling agent is selected from the group consisting of 2-(4-Methyl- 1-cyclohex- 3-enyl) propan- 2-ol (Terpineol). pine oil. pine seed oil and pine needle oil.
6. The formulation as claimed in claim I. wherein the alcohol is isopropanol.
7. The formulation as claimed in claim 1, wherein the fabric is selected from the group consisting of wool, cotton, silk, linen, hemp, ramie, jute, rayon, nylon, polyester. aramid, acrylic, spandex, olefin fibre, polyester viscose, polyester wool, modacrylic olefin acrylic polyester, PTFE, PP, PPE, carbon fiber, vinyon, saran, vinalon. modal,

sulfar, polybenzimidazole fibre. PLA, lyocell, orlon, vectran, zylonacrylonitrile and combinations thereof.
8. A process for preparing a fabric with cooling and anti-microbial finish; said process comprising the following steps:
i. providing a fabric selecting from the group consisting of wool, cotton, silk, linen, hemp, ramie, jute, rayon, nylon, polyester, aramid. acrylic. spandex, olefin fibre, polyester viscose, polyester wool, modacrylic olefin acrylic polyester, PTFE, PP. PPE, carbon fiber, vinyon. saran. vinalon, modal, sulfar, polybenzimidazole fibre, PLA, lyocell. orlon. vectran, zylonacrylonitrile and combinations thereof;
ii. subjecting the fabric to pre-treatment;
iii. providing a finish formulation comprising i) at least one phenolic compound, ii) at least one cooling agent, and iii) at least one alcohol;
iv. applying said formulation onto the fabric at a temperature of about 25 to 50 °C. and
v. subjecting the fabric to post-treatment to obtain a fabric with cooling and anti-microbial finish.
9. The process as claimed in claim 8, wherein the pre-treatment comprises at least
operation selected from the group consisting of scouring, drying, heat setting on
stenler. dyeing, singeing, crabbing and shearing.
10, The process as claimed in claim 8, wherein the post-treatment comprises at least one
operation selected from the group consisting of drying, pressing and kier decasting.

11. The process as claimed in claim 8 further comprising a step of incorporating hydrophilic finish, at least one binder and at least one surfactant into the fabric before the post-treatment step.