DESC:FIELD
The present disclosure relates to an ink composition.
DEFINITIONS
As used in the present disclosure, the following terms are generally intended to have the meaning as set forth below, except to the extent that the context in which they are used indicate otherwise.
The term ‘flash cure’ used hereinafter in the specification refers to the process of exposing a printed fabric to a heat source less than that of the curing oven in order to make the ink dry to the touch.
The term ‘discharge agent’ used hereinafter in the specification refers to a chemical that discharges the dark colored dye out of the fabric and leave the fabric in its natural state.
The terms ‘L’, ‘a’ and ‘b’ used hereinafter in the specification refer to the three CIELAB coordinates that represent the lightness of the color (‘L’ = 0 yields black and ‘L’ = 100 indicates diffuse white; specular white may be higher), its position between red/magenta and green (‘a’, negative values indicate green while positive values indicate magenta) and its position between yellow and blue (‘b’, negative values indicate blue and positive values indicate yellow).
These definitions are in addition to those expressed in the art.
BACKGROUND
There are three types of ink systems, plastisol ink system, water based ink system and solvent based ink system, used in various printing processes. Water based ink systems are better alternatives to plastisol based ink systems and solvent based ink systems, because of their low cost, odorless nature and other benefits. Water based ink systems are environmentally friendly due to lower emission of VOCs (Volatile Organic Compounds).
Further, water-based screen printing has a softer feel on the garment than the conventional inks, which is known as a “soft hand”. The formation of solids in a water-based ink is relatively lower than in the solvent based and plastisol based inks. In addition, water-based inks tend to get absorbed into the fabric more than solvent-based inks, whereas plastisol based inks sit on the surface of the fabric, and provide an undesirable “plastic” feel.
A water based ink system employs the method of discharge printing, which comprises the application of a discharge composition to the material in a preferred design or pattern. The discharge composition mainly includes a base or a binder and a discharge agent. The discharge agent is applied to the material, which destroys the ground dye in the areas of the application. The removal of the ground dye by the discharge agent is a chemical reaction, which is carried out by applying heat to the material. The printed area of the textile material is left off-white on the ground color. Pigment concentrates, dispersed in the binder, which are stable to the discharge agent, are added to the discharge composition so that a different color replaces the ground color. The discharge agent destroys the ground dyes to reflect color, thereby allowing a transparent water-based ink deposit to reflect its color in place of the dye. Colored prints on the ground color can also be obtained if the ground color is produced by means of a mixture of a dischargeable dyestuff and any other color. Discharge printing produces soft textile materials as it almost becomes a part of the material.
However, many water based ink compositions have slow color development and weak color intensity, because the dye cannot fully react with the color developer, and hence, the dyes are dispersed as solid particles in water. Therefore, it is difficult to obtain high color intensity with a water-based dispersion ink composition, even when increased amounts of dye are used.
The most favored discharge agents are the metal salts of formaldehyde sulphoxylic acid. The disadvantage of using a formaldehyde based discharge agent is that formaldehyde is liberated during the reaction, some amount of which is retained by the fabric. If the fabric is not thoroughly washed, then the amount of formaldehyde retained on the fabric may impose a health hazard to the bearer or user of the fabric since formaldehyde is a known carcinogen and irritant.
Further, previously known water based ink compositions need at least six to eight strokes to be applied while printing on the material, which affects the productivity of the printing process.
Therefore, there is felt a need to develop a substitute for formaldehyde based discharge agents and to minimize the number of strokes of water based ink composition during textile printing.
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 to ameliorate one or more problems of the prior art or to at least provide a useful alternative.
An object of the present disclosure is to provide an ink composition for printing textiles/fabrics.
Another object of the present disclosure is to provide an ink composition that is devoid of formaldehyde.
Still another object of the present disclosure is to provide an ink composition for textile printing that gives desirable opacity and brightness of color to the fabric.
Yet another object of the present disclosure is to provide an ink composition that improves the feel of the print.
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
The present disclosure provides a dischargeable flash cure ink composition comprising a formaldehyde free discharge agent.
In accordance with the present disclosure, the dischargeable flash cure ink composition comprises a blend of an acrylic resin, a wetting agent, a softener, a plasticizer, a surfactant, an emulsifier, a filler, a coloring agent, a pH stabilizer, a discharge agent and a thickener.
In accordance with the present disclosure, the ink composition provides desirable opacity and brightness of color on fabric.
DETAILED DESCRIPTION
Water based ink compositions are low cost, odorless and environment friendly, due to the low emission of volatile organic compounds. A substitute for the formaldehyde based discharge agents is desirable for the water based ink composition. It is also desirable to minimize the number of strokes of water based ink composition during textile printing, especially for automatic machines.
The present disclosure relates to a dischargeable flash cure ink composition comprising a formaldehyde free discharge agent. The composition of the present disclosure is environment friendly and provides the desirable opacity and brightness of color to the fabric.
In accordance with one aspect of the present disclosure, there is provided a dischargeable flash cure ink composition. The ink composition of the present disclosure comprises a blend of an acrylic resin, a wetting agent, a softener, a plasticizer, a surfactant, an emulsifier, a filler, a coloring agent, a pH stabilizer, a discharge agent and a thickener.
In accordance with the present disclosure, the dischargeable flash cure ink composition is water based ink composition.
In accordance with the present disclosure, the acrylic resin is at least one selected from the group consisting of methyl acrylate, butyl methyl acrylate, methyl methacrylate monomer (MMA) and polymethyl methacrylate (PMMA).
In accordance with one embodiment of the present disclosure, the acrylic resin is butyl methyl acrylate in an amount ranging from 20% to 30% of the dischargeable flash cure ink composition, preferably 25%.
The amount of solids in the acrylic resin ranges from 35% to 45% and the glass transition temperature (Tg) of the acrylic resin is -14 oC.
In accordance with the present disclosure, the wetting agent is selected from a group consisting of white spirit, TEGO® Wet 500 and TEGO® Glide 410, preferably white spirit. The white spirit has more than 90% transparency and specific gravity ranging from 0.8 to 0.85. The amount of white spirit in the dischargeable flash cure ink composition is in the range of 10% to 30% of the ink composition, preferably 20%.
In accordance with one embodiment of the present disclosure, the softener is urea, which acts as a humectant as it reduces clogging of the screen due to drying of the ink. The amount of urea in the dischargeable flash cure ink composition is in the range of 5% to 15% of the ink composition, preferably 8%.
In accordance with the present disclosure, the plasticizer is at least one selected from the group consisting of monopropylene glycol, dipropylene glycol, tripropylene glycol and 1, 2-cyclohexane dicarboxylic acid diisononyl ester. The plasticizer of the present disclosure acts as a humectant due to its high water compatibility and gives a smooth flow to the composition when used in printing. The plasticizers are present in an amount in the range of 1% to 15% of the ink composition. In an exemplary embodiment, the amount of monopropylene glycol and 1, 2-cyclohexane dicarboxylic acid diisononyl ester in the dischargeable flash cure ink composition is 10% and 4% of the ink composition respectively.
The surfactant of the present disclosure is at least one selected from the group consisting of surfynol ® 440 (2, 4, 7, 9-tetramethyl-5-decyn-4, 7-diol), surfynol® 420, surfynol® 104 and surfynol® SE-E (surfynol® 440, surfynol® 420, surfynol® 104 and surfynol® SE-E are the surfactants of the acetylenic diol family). In accordance with the present disclosure, the surfactant is Surfynol® 440 (ethoxylated 2, 4, 7, 9-tetramethyl-5-decyn-4, 7-diol) in an amount in the range of 0.2% to 2.0% of the dischargeable flash cure ink composition, preferably 0.5%. Surfynol® 440 acts as excellent pigment wetting agent, which improves the flow and leveling of the composition and is free of volatile organic compounds.
In accordance with the present disclosure, the emulsifier is selected from a group consisting of Rhodacal A4D and Synperonic™ 13/7-85-LQ-(RB) (polyoxyethylene tridecyl ether), preferably Synperonic™ 13/7-85-LQ-(RB). The amount of Synperonic™ 13/7-85-LQ-(RB) is in the range of 0.2% to 2.0% of the dischargeable flash cure ink composition, preferably 1.0%.
In accordance with the present disclosure, the filler is selected from a group consisting of calcium carbonate and aluminium silicate, preferably aluminium silicate. The amount of aluminum silicate is in the range of 5% to 20% of the dischargeable flash cure ink composition, preferably 15%. Aluminum silicate acts as a whitener in the ink composition.
In accordance with the present disclosure, the coloring agent is titanium dioxide of anatase or rutile grade, preferably rutile grade. In an exemplary embodiment, the amount of titanium dioxide is in the range of 3% to 15% of the dischargeable flash cure ink composition, preferably 5%.
In accordance with the present disclosure, the pH stabilizer is selected from a group consisting of triethanol amine, 10% liquor ammonia and 2-amino-2-methyl-1-propanol solution, preferably 2-amino-2-methyl-1-propanol solution. The amount of 2-amino-2-methyl-1-propanol solution is in the range of 0.1% to 1.5% of the dischargeable flash cure ink composition, preferably 0.5%. The pH of the ink composition is neutral or slightly alkaline, in the range of 7 to 8.
In accordance with one embodiment of the present disclosure, the discharge agent is Sera Con P-ACT.
The discharge agent, Sera Con P-ACT is represented by formula 1 below:

Formula I
where:
G represents a group 1 metal; and n is 1-6.
The group 1 metal of the present disclosure is at least one selected from sodium and potassium.
In accordance with one embodiment of the present disclosure, the Sera Con P ACT is in an amount in the range of 5% to 15% of the dischargeable flash cure ink composition, preferably 10%.
In accordance with the present disclosure, the thickener is selected from a group consisting of methyl cellulose, ethyl cellulose, hydroxyethyl cellulose, carboxymethyl cellulose and hydroxypropyl methyl cellulose (HPMC), preferably hydroxypropyl methyl cellulose. The amount of hydroxypropyl methyl cellulose is in the range of 0.2% to 1.5% of the dischargeable flash cure ink composition, preferably 1%. The hydroxypropyl methyl cellulose provides better thickening and anti-settling properties to the ink composition.
In accordance with the present disclosure, there is provided a process for the preparation of the dischargeable flash cure ink composition; the process comprising; charging a reactor with an acrylic resin and a wetting agent, and stirring thoroughly to obtain a first mixture; introducing a softener to the first mixture under continuous stirring till the beads of the softener are dispersed to obtain a second mixture; adding a first plasticizer, a surfactant and an emulsifier to the second mixture under continuous stirring to obtain a homogeneous solution; adding a filler and a coloring agent to the homogeneous solution under stirring to obtain a third mixture; adding a pH stabilizer and a second plasticizer to the third mixture under continuous stirring, followed by the addition of a thickener till all the beads are dissolved and the desired viscosity is attained to obtain a fourth mixture; and finally introducing a discharge agent in the fourth mixture and stirring thoroughly to obtain the dischargeable flash cure ink composition.
In an exemplary embodiment, the dischargeable flash cure ink composition is applied to a dyed fabric; the dyed fabric being 100% cotton.
In an embodiment, the dischargeable flash cure ink composition of the present disclosure is used for printing on fabric by screen printing by means of manual/table/automatic machine printing. The ink composition of the present disclosure is applied with a maximum of two strokes to give brighter print with a soft feel and shows better opacity on the fabric.
The viscosity of the dischargeable flash cure ink composition of the present disclosure is in the range of 20 poise to 100 poise. In accordance with one embodiment of the present disclosure, the viscosity of the dischargeable flash cure ink composition is 80 poise.
In accordance with one embodiment of the present disclosure, there is an improvement in ‘L’ values of the fabric using the dischargeable flash cure ink composition of the present disclosure.
The present disclosure is further illustrated herein below with the help of the following experiments. The experiments 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 experiments should not be construed as limiting the scope of the embodiments herein.
Experiment 1: Process for preparing a dischargeable flash cure ink composition
A rotamix disperser mixer was charged with 25 g of butyl methyl acrylate and 20 g of white spirit, and stirred thoroughly to obtain a first mixture; 8 g of urea was further introduced in the first mixture under continuous stirring till the beads of urea completely dispersed to obtain a second mixture; 10 g of monopropylene glycol, 0.5 g of Surfynol 440 (ethoxylated 2,4,7,9-tetramethyl-5-decyn-4, 7-diol) and 1.0 g of Synperonic 13/7-85-LQ-(RB) (polyoxyethylene tridecyl ether) were added to the second mixture under continuous stirring to obtain a homogeneous solution; 15 g of aluminium silicate and 5 g titanium dioxide were further added to the homogeneous solution under stirring to obtain a third mixture and the grinding was continued till the particle size of the third mixture was below 5 µm; 0.5 g of 2-amino-2-methyl-1-propanol solution and 4 g of 1, 2-cyclohexane dicarboxylic acid diisononyl ester were added under continuous stirring to the third mixture followed by the addition of 1 g of hydroxyl propyl methyl cellulose till all the beads dissolved and the desired viscosity of 80 poise was attained to obtain a fourth mixture. 10 g of Sera Con P-ACT was finally charged to the fourth mixture and stirred thoroughly to obtain a dischargeable flash cure ink composition.
The dischargeable flash cure ink composition used for printing on textile/ fabric material is summarized in Table 1.

Table 1: Dischargeable flash cure ink composition
Sr No. Components Amount with respect to the composition (g)
1 Butyl methyl acrylate 25
2 White spirit 20
3 Urea 8
4 Monopropylene glycol 10
5 Surfynol® 440 (ethoxylated 2,4,7,9-tetramethyl-5-decyn-4, 7-diol) 0.5
6 Synperonic 13/7-85-LQ-(RB) (polyoxyethylene tridecyl ether) 1.0
7 Aluminium Silicate 15
8 Titanium dioxide rutile grade 5
9 2-amino-2-methyl-1-propanol solution 0.5
10 1,2-cyclohexane dicarboxylic acid diisononyl ester 4
11 Hydroxypropyl methyl cellulose (HPMC) 1
12 Sera Con P-ACT 10
Water based opaque textile ink, free from polyvinyl chloride and phthalate (Aquatex AT color) was used in the process of printing the inks on the fabrics. The dischargeable flash cure ink composition of the present disclosure and Aquatex AT color were used for printing, the process for which is described below.
Experiment 2: Process for printing of the dischargeable flash cure ink composition on fabric
The dischargeable flash cure ink composition of the present disclosure was printed on a 100% black cotton single jersey using a monofilament polyester mesh (43T mesh). Two strokes of the dischargeable flash cure ink composition were applied on the fabric. The print was flash cured at 100 °C for 4 seconds. After the print was touch dry, a second layer of Aquatex AT color using a monofilament polyester mesh (43T mesh) was applied on the fabric already printed with the ink composition. Two strokes of AT color were applied using the monofilament polyester mesh (43T mesh) and then flash cured at a temperature of 95 °C for 4 seconds. Finally, the print was cured at a temperature of 160 °C for 90 seconds. The AT colors used in the tests 1 to 8 are listed below:
1. AT-021: White
2. AT-042: Seritone Yellow (Green shade)
3. AT-134: Seritone Red (Yellow shade)
4. AT-165: Magenta
5. AT-203: Seritone Blue
Evaluation of the results by printing of the dischargeable flash cure ink composition on fabric
The dischargeable flash cure ink composition of the present disclosure was used as a base for water based ink printing on a dark colored fabric. A comparative test was performed where, 100% cotton was first printed with an AT color and then a color layer was printed on the white layer. The ‘L’, ‘a’ and ‘b’ values of the AT color were used for comparison, since it does not have a dye that will migrate to the top color, turning the color towards darker shade. Further, 100% cotton was first printed with an ink composition and then an AT color layer was printed on top of it.
Tables 2 and 3 lists the ‘L’, ‘a’ and ‘b’ values of different colors (AT-042, AT-134, AT-165, and AT-203) printed on 100 % black cotton. Test details are given below:
Test 1 (comparative test): 100 % black cotton printed with two strokes of layer 1 (AT-021) and two strokes of layer 2 (AT-042).
Test 2 (in accordance with the present disclosure): 100 % black cotton printed with two strokes of layer 1 (dischargeable flash cure ink composition) and two strokes of layer 2 (AT-042).
Test 3 (comparative test): 100 % black cotton printed with two strokes of layer 1 (AT-021) and two strokes of layer 2 (AT-134).
Test 4 (in accordance with the present disclosure): 100 % black cotton printed with two strokes of layer 1 (dischargeable flash cure ink composition) and two strokes of layer 2 (AT-134).
Test 5 (comparative test): 100 % black cotton printed with two strokes of layer 1 (AT-021) and two strokes of layer 2 (AT-165).
Test 6 (in accordance with the present disclosure): 100 % black cotton printed with two strokes of layer 1 (dischargeable flash cure ink composition) and two strokes of layer 2 (AT-165).
Test 7 (comparative test): 100 % black cotton printed with two strokes of layer 1 (AT-021) and two strokes of layer 2 (AT-203).
Test 8 (in accordance with the present disclosure): 100 % black cotton printed with two strokes of layer 1 (dischargeable flash cure ink composition) and two strokes of layer 2 (AT-203).
Table 2: List of the ‘L’, ‘a’ and ‘b’ values of different colors

‘L’ ‘a’ ‘b’ ‘C’ ‘H’ Values Garment 100%
Black cotton
Test 1 Test 2 Difference as compared to Test 1 Test 3 Test 4 Difference as compared to Test 3
Layer 1:
AT-021 (White taken as Standard) Layer 1: Dischargeable flash cure ink composition Layer 1:
AT-021
(White taken as Standard) Layer 1: Dischargeable flash cure ink composition
Layer 2:
AT-042 Layer 2:
AT-042 Layer 2:
AT-134 Layer 2:
AT-134
L 72.6 88.03 15.43 41.22 48.76 7.54
a -11.26 -6.15 5.11 41.38 55.51 14.13
b 62.77 81.69 18.92 19.93 27.76 7.83
C 63.77 81.92 18.15 45.93 62.06 16.13
H 100.17 94.31 -5.86 25.72 26.57 0.85
Tests 1 and 2 of table 2 reveal that the 'L' value of test 2 increased by 15.43 units than test 1 indicating the improvement in brightness of the fabric; the 'b' value of test 2 increased by 18.92 units than test 1 indicating that the color of the fabric was more on the yellow side and the 'a' value of test 2 increased by 5.11 units test 1 indicating that the color of the fabric was more towards the green side. The dischargeable flash cure ink composition of the present disclosure acts as a base and bleaches the black cotton fabric to form a thin white layer, due to which AT-042 (which is yellow in color) appears more bright and yellowish than test 1.
Tests 3 and 4 of table 2 reveal that the 'L' value of test 2 increased by 7.54 units than test 3 indicating the improvement in brightness of the fabric; the 'b' value of test 2 increased by 7.83 units than test 3 indicating that the color of the fabric was more on the yellow side and the 'a' value of test 2 increased by 14.13 units than test 3 which shows that the color of the fabric is more towards the red side. The dischargeable flash cure ink composition of the present disclosure acts as a base and bleaches the black cotton fabric to form a thin white layer, due to which AT-134 (which is red in color) with yellow shade appears more bright and reddish yellow in shade than test 3.
Table 3: Illustration of the ‘L’, ‘a’ and ‘b’ values of different colors

‘L’ ‘a’ ‘b’ ‘C’ ‘H’ Values Garment 100%
Black cotton
Test 5 Test 6 Difference as compared to Test 5 Test
7 Test 8 Difference as compared to Test 7
Layer 1:
AT-021 (White taken as Standard) Layer 1: Dischargeable flash cure ink composition Layer 1:
AT-021
(White taken as Standard) Layer 1: Dischargeable flash cure ink composition
Layer 2:
AT-165 Layer 2:
AT-165 Layer 2:
AT-203 Layer 2:
AT-203
L 42.93 49.24 6.31 31.17 37.52 6.35
a 43.9 54.31 10.41 9.81 9.9 0.09
b -14.63 -11.63 3 -38.44 -46.52 -8.08
C 46.27 55.54 9.27 39.67 43.66 3.99
H 341.57 347.92 6.35 284.32 283.1 -1.22
Tests 5 and 6 of table 3 reveal that the 'L' value of test 6 increased by 6.31 units than test 5 indicating the improvement in brightness of the fabric; the 'b' value of test 6 increased by 3.00 units than test 5 indicating that the color of the fabric was more towards the blue side and the 'a' value of test 6 increased by 10.4 units than test 5, which shows that the color of the fabric towards the red side. The dischargeable flash cure ink composition of the present disclosure acts as a base and bleaches the black cotton fabric to form a thin white layer, due to which AT-165 (which is magenta in color) appears more bright and pinkish in shade than test 5.
Tests 7 and 8 of table 3 reveal that the 'L' value of test 8 increased by 6.35 units than test 7 indicating the improvement in brightness of the fabric; the 'b' value of test 8 decreased by 8.08 units than test 7 indicating that the color of the fabric was more towards the blue side and there was no significant change in the 'a' values of tests 7 and 8. The dischargeable flash cure ink composition of the present disclosure acts as a base and bleaches the black cotton fabric to form a thin white layer, due to which AT-203 (which is blue in color) appears more bright and blue than test 7.
Thus, it was clear from tests 1 to 8 that the dischargeable flash cure ink composition in the tests 2, 4, 6 and 8 provided improved brightness to the fabric as compared to the ink composition of tests 1, 3, 5 and 7. The dischargeable flash cure ink composition of the present disclosure can be applied using a maximum of two strokes and gives better opacity to the fabric and a smooth feeling of the printed material.
TECHNICAL ADVANCES AND ECONOMICAL SIGNIFICANCE
The present disclosure described herein above has several technical advantages including, but not limited to, the realization of:
• a dischargeable flash cure ink composition that is essentially formaldehyde free;
• an ink composition that gives the desirable opacity as well as the desirable brightness of the color to the fabric;
• an ink composition gives the desirable feel of the print; and
• an environment friendly ink composition for textile printing.
The exemplary embodiments herein quantify the benefits arising out of this disclosure and the various features and advantageous details thereof are explained with reference to the non-limiting embodiments in the 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 will 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.
Any discussion of documents, acts, materials, devices, articles and 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.
While considerable emphasis has been placed herein on the particular features of this disclosure, it will be appreciated that various modifications 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 modifications in the nature of the disclosure or the preferred embodiments 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:1. A formaldehyde free dischargeable flash cure ink composition comprising a blend of an acrylic resin, a wetting agent, a softener, a plasticizer, a surfactant, an emulsifier, a filler, a coloring agent, a pH stabilizer, a discharge agent and a thickener.
2. The composition as claimed in claim 1, wherein said acrylic resin is in an amount in the range of 20% to 30% of the composition, said wetting agent is in an amount in the range of 10% to 30% of the composition, said softener is in an amount in the range of 5% to 15% of the composition, said plasticizer is in an amount in the range of 1% to 15% of the composition, said surfactant is in an amount in the range of 0.2% to 2.0% of the composition, said emulsifier is in an amount in the range of 0.2% to 2.0% of the composition, said filler is in an amount in the range of 5% to 20% of the composition, said coloring agent is in an amount in the range of 3% to 15% of the composition, said pH stabilizer is in an amount in the range of 0.1% to 1.5% of the composition, said discharge agent is in an amount in the range of 5% to 15% of the composition and said thickener is in an amount in the range of 0.2% to 1.5% of the composition.
3. The composition as claimed in claims 1 or 2, wherein said acrylic resin is at least one selected from the group consisting of methyl acrylate, butyl methyl acrylate, methyl methacrylate and polymethyl methacrylate (PMMA).
4. The composition as claimed in claims 1 or 2, wherein said wetting agent is at least one selected from a group consisting of white spirit TEGO Wet 500 and TEGO Glide 410.
5. The composition as claimed in claims 1 or 2, wherein said softener is urea.
6. The composition as claimed in claims 1 or 2, wherein said plasticizer is at least one selected from the group consisting of monopropylene glycol, dipropylene glycol, tripropylene glycol and 1, 2-cyclohexane dicarboxylic acid diisononyl ester.
7. The composition as claimed in claims 1 or 2, wherein said surfactant is at least one selected from the group consisting of Surfynol 440, Surfynol 420, Surfynol 104 and Surfynol SE-E.
8. The composition as claimed in claims 1 or 2, wherein said emulsifier is at least one selected from a group consisting of Rhodacal A4D and Synperonic 13/7-85-LQ-(RB).
9. The composition as claimed in claims 1 or 2, wherein said filler is at least one selected from a group consisting of calcium carbonate and aluminium silicate.
10. The composition as claimed in claims 1 or 2, wherein said coloring agent is titanium dioxide.
11. The composition as claimed in claims 1 or 2, wherein said pH stabilizer is at least one selected from a group consisting of triethanol amine, 10% liquor ammonia and 2-amino-2-methyl-1-propanol solution.
12. The composition as claimed in claims 1 or 2, wherein said discharge agent is Sera Con P-ACT.
13. The composition as claimed in claims 1 or 2, wherein said thickener is at least one selected from a group consisting of methyl cellulose, ethyl cellulose, hydroxyethyl cellulose, carboxymethyl cellulose and hydroxypropyl methyl cellulose.
14. The composition as claimed in claim 1, wherein said composition provides desirable opacity and brightness of color on a fabric.
15. The composition as claimed in claim 1, wherein viscosity of said composition is in the range of 20 poise to 100 poise.