FORM2
THE PATENTS ACT 1970
(39 of1970)
AND
The Patents Rules, 2003
COMPLETE SPECIFICATION
(See section 10 and rulel3)
1. TITLE OF THE INVENTION:
""PERMABACK"", LONG LIFE, BLEACH PROOF LATEX COATED RUGS
2. APPLICANT:
(a) NAME: WELSPUN GLOBAL BRANDS LIMITED
(b) NATIONALITY: Indian Company incorporated under the
Companies Act, 1956
(c) ADDRESS: Welspun House, 6th Floor, Kamala City,
Senapati Bapat Marg, Lower Parel, Mumbai - 400013. Maharashtra, India.
3. PREAMBLE TO THE DESCRIPTION:
The following specification describes the invention and the manner in which it is to be performed.

Field of Invention:
The present invention relates to enhancing the useful life of the rug and imparting bleach proof property to the coating by modification in the composition of the Latex recipe of coating material called "PERMABACK". The "PERMABACK" rugs with enhanced useful life and having bleach proof property in the coating are disclosed herein.
Background and Prior Art of Invention:
Rugs are thick woven floor mats of shaggy or thick piled surface. Rugs are tufted floor covering used in specific areas of application. Rugs may have thick piles on one or both sides of the backing fabric. The thick piled surface is also sheared to give the surface soft velvety touch.
Rugs may have tufting on one surface, and latex or rubber coating on the other surface to hold the tufts in place; as otherwise the tufts may get dislodged from the backing fabric. Further, the latex or rubber coating acts as anti-skid surface.
Rugs are formed with a backing fabric and pile yarns for tufting. The backing fabric is normally a cotton canvas or HDPE (High Density Poly Ethylene) or PP (Polypropylene, with or without Nylon fleece) woven fabric or Non-Woven fabric of polypropylene fibers.
The pile yarns are usually selected from natural fiber yarns such as, cotton, linen, hemp, sisal, wool, silk, ramie, banana fiber or regenerated cellulose fiber yarns such as, viscose, bamboo, modal, rose or synthetic fiber yarns such as, nylon, polyester and polypropylene.
During the course of explorations of various latex applications available for usage on the tufted rugs, it was noticed that only natural and synthetic latex were applied at the back of the rugs to impart tuft lock and antiskid properties. The life of such coating is very short, in that the coating starts cracking and splitting after about 8-10 washes. Normally Rugs are rarely washed only to shed them off the dirt and remove stains. However after some washes the latex becomes brittle and starts cracking and peeling. These cracked and peeled areas allow moisture/ water to enter the surface from below, there by staining the

rug surface, causing ugly patches. This also results in mildew formation leading to uncomfortable odor. Invariably these rugs gets discarded and disposed.
There are three kinds of application of latex to the back of the rug viz,
• Spray Coating: coating of the rubber or latex solution with a spray gun. This is generally applied to Table tufted rugs, with Latex Coat GSM of 60 - 120 grams for low GSM rugs of 300 grams and below.
• Lick Coating: normally carried out on a Coating Machine for machine tufted rugs, with Latex Coat GSM of 300 - 450 grams for medium GSM rugs of 300 grams to 450 grams.
• Foam Coating: foam Coating is also carried out on a coating machine for machine tufted rugs, with Latex Coat GSM of 600 - 900 grams for high GSM rugs of 450 grams and above.
In regular industrial practice the coating mixture consists of
1. Readily available Natural Latex (rubber)
2. Synthetic Latex (Synthetic Butadiene rubber)
3. Potassium Oleate soap
4. Water
5. Anti-Oxidant (Phenolic Acid)
6. A thickener ( Potassium Acylate/ Sodium poly Acrylate )
7. Filler ( Calcium Carbonate Magnesium Carbonate)
During the application of the coating mixture the following Gel is used as a homogenizer.
8. Gel ( Ammonium Acetate ) and
An accelerator or activator is used as a catalyst for speeding up of the binding and curing,
9. An accelerator or Activator ( Mix of Sulphur and Zinc Oxide)
In the case of Spray coating the accelerator used is 6% of the Latex weight and no Gel or filler is used.

The quantum of accelerator is generally 4% on the weight of Latex for Lick Coating and no Gel or filler is used in this case also.
In the case of Foam coating the Latex usually consists of 50% Natural Rubber and 50% Synthetic latex and the filler used is 200 % of the latex. The accelerator constitutes 3.5% of the Latex weight and the Gel used is about 3%. The purpose of the Gel is to gel the ingredients homogeneously in the foam.
A latex composition as disclosed in GB1522881, comprises (a) a natural or synthetic elastomeric latex; (b) a curing system which comprises an accelerating agent, which agent is inhibited in accelerating function in the presence of the base and (c), a volatile ammoniacal base, the composition being characterized by having a total solids content of 55 to 85% by weight and being free of a gelling agent capable of gelling the composition in storage.
Another latex composition is disclosed in US20O8005052O, the composition comprises an aqueous emulsion of a natural or synthetic film-forming polymer, hydrogen peroxide, a surfactant and an activating agent for hydrogen peroxide decomposition.
In all the above applications the life of the coating of the rugs is about 10 washes, after which the Latex coating at the back starts cracking and peels off. The white coating generally turns yellow and if any bleaching is used during washing the process of cracking accelerates.
Objects of the Invention:
In view of above, the main object of the invention is to provide a process for manufacturing of long life, bleach safe, "PERMABACK" coated rugs using a special mixing of Natural latex, Synthetic Latex, accelerator. Gel and filler having anti-oxidant property, thus imparting bleach proof durability, to withstand 50 washes.

Summary of the Invention:
This objective has been achieved by modifying the Latex coating recipe to overcome the above problems, thereby increasing the useful life of the rug to withstand 50 washes and is bleach proof.
The invention mainly aims at reducing the content of Synthetic Latex and filler, which makes the coating more supple, less brittle and more resilient to withstand stress and strain during washing thereby enhancing the durable life of the rug.
Brief Description of Drawings:
Fig. 1 depicts a Simple flowchart for process for production of machine tufted rugs with
"PERMABACK" coating.
Detailed Description of the invention:
The invention wili now be described in detaif, a/ong with certain preferred and optional embodiments so that various aspects thereof may be more fully understood and appreciated.
It must be noted that as used herein and in the appended claims, the singular forms "a", "an", and "the" include plural reference unless the context clearly dictates otherwise.
It is understood that the disclosed invention is not limited to the particular methodology, protocols, and reagents described as these may vary. It is also to be understood that the terminology used herein is for the purpose of describing particular embodiments only, and is not intended to limit the scope of the present invention, which will be limited only by the appended claims.
Those skilled in the art will recognize, or be able to ascertain using no more than routine experimentation, many equivalents to the specific embodiments of the invention described herein. Such equivalents are intended to be encompassed by the appended claims.

Unless defined otherwise, all technical and scientific terms used herein have the same meanings as commonly understood by one of skill in the art to which the disclosed invention belongs.
For the purpose of this invention, the terms "Natural Latex" or "Synthetic Latex", relate to rubber latex, irrespective of various trade names assigned. The terms 'accelerator' 'Gel' and Fillers are generic irrespective of trade names.
For the purpose of this invention, term "PERMABACK" relates to a rug formed by use of special mixing of Latex, and filling substance, in the coating given to the back side of the rug, on the coating machine and excludes spray coating used for Table Tufted rugs.
The current invention relates to reduction in the use of synthetic latex (in turn increasing the content of Natural latex), reducing the content of a filling agent in addition to judiciously balancing the use of the accelerator, thickener and the Anti-Oxidant, in the recipe for Latex coating of the rugs to impart ruggedness to with stand up to 50 washes, without cracking or splitting or peeling and is bleach safe. Further, the latex or rubber coating acts as anti-skid surface.
In one embodiment, the invention provides a process for production of "PERMABACK" rugs comprising three stages. The first stage is tufting wherein, the backing fabric is creeled on to the machine at the back of the needle head and threaded up to the bed, where actual tufting by the needles is carried out. The requisite numbers of Loop Thread cheeses (Cotton) are creeled on to the creel of the ALP Machine, MLCL machine or ACP machine, (ALL LOOP, MULTI LOOP CUT LEVEL and ALL CUT PILE machines). The yarn from the cheeses is threaded through the tubing and tufting needles of the machine as per design pattern fed in to the computer of the machine and tufting operation starts.
Second stage is coating, wherein, the tufted roll, from tufting step, are loaded on to the Latex coating machine, where the coating is a continuous operation. The supply of "PERMABACK" mixture of foam latex (both Natural and synthetic latex mix), filler and thickener is through automated system. During application accelerator and gel is added to

the foam. The thickness of the coat and controlling of the GSM is through microprocessor based programs. The embossing of the latex backing to introduce anti-skid property and baking and drying of latex are carried out by system itself.
Latex preparation: Natural latex { Polyisoprene- Ammonia centrifuged natural rubber) is collected in a tank and potassium Oleate soap, water, anti-oxidant are added and mixed together with slow speed stirrer ( three spindle stirrer rotating at 20 rpm.). After 20 min the Synthetic Latex SBR (Bunatex T 4320 - Aqueous dispersion of styrene and 1, 3 Butadiene) is added and stirred for 20 min, then filler and thickener is added in a sequence, while continuing to stir the mix. The viscosity of the latex mix is checked and optimized at 4500 cPS (Centi poise per second, 4 spindle, 20 rpm Brookfield viscometer). 4500 cPS is equivalent to 4.5 Pascal's per second, i.e., 4.5 kg/Meter second. Water at 20.2°C has an absolute viscosity of 1 Centi poise. Now the latex mixing is ready for application to coating.
Latex application: In this process latex applied on the back side of tufted roll. This coating can be applied to any type of tufted Yarn rug. The yarn may be drylon on the face, cotton yarn on the face, or nylon yarn on the face etc. To the ilPERMABACK" Latex MIX prepared as above, activator/ accelerator at 4% (Sulphur and zinc oxide) and Gel 3-4 %( ammonium acetate 20% solution) is added and the mixture is applied on the back side of tufted roll. The Thickness of the coat is checked to ensure correct grams per meter of the coating.
The coated rug passes through steaming chamber and infra-red rays area for fixation and curing of the applied latex. The latex cures at 125-130 degree Celsius temperature. The latex coated rug then passes through cooling zones and cools at 60 degree Celsius temperature and 40 degree Celsius respectively.
Third stage is cutting wherein; cutting of the tufted and coated rug fabric is carried out on the automatic infra-red guided cutting machine to the requisite size as per the specifications.

The cut and coated rugs are further stitched on four sides on stitching machines with folders for guiding the piping cloth, or all the four sides are over locked with the piping cioth. The stitched rugs are then washed, dyed with Reactive Dyes, dried, checked, mended, folded, passed through needle detectors and packed in to poly bags before packing in to cartons.
Tufting Machine as used for production of "PERM ABACK" rugs of instant invention is selected from All Loop (ALP) Machine, Multi Loop Cut Level (MLCL) Machine or All Cut Pile Machine (ACP)
An All Loop (ALP) Machine having gauge of 3/16 inch or 3/8 inch, resulting in production of linear loops, with capability to have loop densities in range of 16 to 80 per sq. inch and capable of introducing pile heights of 3mm to 34 mm, can be employed for manufacturing the rug of invention. The creel capacity of the said machine is 1728
cheeses.
A Multi Loop Cut Level (MLCL) Machine having gauge of 1/8 inch, resulting in production of linear loops, with capability to have loop densities in range of 20 to 80 per sq. inch and loop height of 3 to 20mm and cut pile height of 4 to 22 mm, can be employed for manufacturing the rug of invention. The creel capacity of the said machine is 2592 cheeses.
All Cut Pile Machine (ACP) having 1/8" gauge, capable of introducing pile height from 3mm to 34mm, with possible pile density of 20 to96 per sq. inch can be employed for manufacturing the rug of invention. The creel capacity of said machine is 2592 cheeses.
All Cut Pile Machine (ACP) having 3/16 inch gauge, capable of introducing pile height from 3 to 34 mm and density of 18 to 88 per sq. inch can be employed for manufacturing the rug of invention. The creel capacity of said machine is 1728 cheeses. The process for making drylon "PERMABACK" rugs as described above further includes coating of the rugs with "PERMABACK" latex mix on remote side to impart anti-skid and long life properties and to hold the tufts intact. The latexing is carried out on

continuous latexing machine, wherein latexing mixture comprises of synthetic and natural latex and filler.
The instant invention is more specifically explained by following examples. However. those skilled in the art will recognize or be able to ascertain, using no more than routine experimentation, many equivalents to the specific embodiments of the invention described herein. Such equivalents are intended to be encompassed by the examples and claims appended hereinafter.
Examples: Comparative Example 1

Part Particular Quantity(391 kgs atex)
Part A Normal Industrial Recipe "PERMABACK"
Recipe

"Natural latex (Polyisoprene- Ammonia centrifuged natural rubber) 50% 55-75%

SBR (Bunatex T 4320 - Aqueous dispersion of styrene and 1,3 Butadiene) 50%' 45-25%

Potassium Oleate soap 12kg 8-22kg

Water 22 kg 8-25kg

Anti-Oxidant Phenolic Acid 3 kg 1.5-4.5kg

Filler Calcium/ magnesium Carbonate MgC03 / CaC03 200 kg 110-145kg

Thickener Potassium Acrylate/ Sodium
polyacrylate 3 kg I.5-4.5kg
Part 8
(during application) GEL Ammonium Acetate 2.5%-4% 2.5%-4%
PartC
(during application)
Accelerator Mix of Sulphur and Zinc Oxide 3%-4% 3%-4%

EXAMPLE 1: Particulars of "PERMABACK" latex with Cotton yarn tuft. "PERMABACK" latex recipe for drylon tufted rug:

Trial lot
Part Particular Mixing quantity (391 kgs latex)
Natural latex ( Polyisoprene-
Ammonia centrifuged natural rubber) 60%

SBR (Bunatex T 4320 -
Aqueous dispersion of styrene 40%
Part A and 1,3 Butadiene)

Potassium Oleate soap lOkgs

Water 9kgs

Anti Oxidant Phenolic Acid 2kgs

Filler Calcium/ magnesium Carbonate MgC03 / CaC03 I20kgs

Thickener Potassium Acrylate/ Sodium polyacrylate 2kgs
PartB
(during 3%
application) GEL Ammonium Acetate
PartC
(during Accelerator Mix Of Sulphur and 3%
application) Zinc Oxide

Technical Specifications:

Design SANNY
Party WIL
Machine 3/16 cut
Yarn 6/6 OE 3.2 TPI S TWIST 100% COTTON
materia] code FCC0788053MPFDN01
Size 21x34
Backing 110 pp
Coating type foam coat
latex type "PERM A BACK"
Process route Reactive dyeing

percentage
% oz gsm inc h cm gm/lOOmtr G m
Tufting width 151 384
tuft yarn gsm 28 958
backing width 165 420
baking gsm 3 110
Length 100
tuft rugs gsm 31 1068
grey tufted rugs wt/lOOmtr 409498
yarn waste 1
yarn wt 369143
yarn scrap 1846
backing wt 46460
backing waste 1
backing scrap 4269
backing area
Coating
coating gsm 24 814
coated rugs gsm 55 1881

coated rugs wt/300MTR 721546
coated rugs wt/mtr
solid coating wt 312048
solid contain 65
liquid coating 480074

Natural latex 93 Part A 167546
SBR

111857
Potassium Oleate soap

12002
Water

11042
Anti Oxidant

2400
Filler

144022
Thickener

2400
Accelerator 3 PartB 14402
Gel 3 PartC 14402
grey rugs width 22 55 1
finish rugs width 21 53 53
grey rugs length 35 89
finish rugs length 34 86 86
grey gsm 55 1881
finish gsm 55 1872
rugs wt(for rectangle and square) 1897 921
Utilization 97
fibre loss due to processing 11
wt loss 52
finish wt(rectangle/square) 869

The Yarn used in the above example is 100% cotton NE 6's open End Spun yarn cabled six folds to get 6/6's yarn of resultant count NE l's, with aTPl of 3.2 in S direction.
The dyeing of the made up rugs is carried out in the Pocket Dyeing Machines of capacity 130 kg/250 Kg/ 1000 Kg, depending on the batch size.
The materials to Liquor ratio are 1:10 and the dispensing of dyes, chemicals and axillaries is through automated dispensing system.
In the bleaching and dyeing, the operating temperature range from about 95°C to about 100°C. In the preferred embodiment, the temperature is about 95°C.
The liquor ratio is a ratio of the material (weight) to water (volume). The liquor ratio should be sufficient to facilitate free movement of the Rugs. The liquor ratio ranges from about 1:5 to about 1:30. In the preferred embodiment the liquor ratio is i: 10.
The rotation of the rugs is essential to promote uniform application of the color. A continual overflow of water is also desired.
After dyeing and washing, the liquor is drained and fresh water is injected for rinsing to eliminate all the dissolved impurities. The water is at a temperature ranging from about 55°C to about 100°C. Preferably, the water is at a high temperature, such as 100°C. This rinsing step also ensures that any loose fibers drain out along with the drain water,
After unloading the material from the pocket dyeing rinsing vessel, the material is hydro-extracted in a Hydro-extractor in the standard manner to reduce the moisture from 200% to 60%. Then the material is dried through a hot air piece dryer the drying is carried out at about 100 -110°C for about 60 to 120 minutes.
EXAMPLE 2:
A process for making a "PERMABACK" DRYLON rug comprising use of, dope dyed, micro denier, cabled and heat set polyester yarn, or micro denier per filament, cabled, heat set , yarn dyed, antimicrobial treated polyester yarn, for tufting of rugs, thereby

eliminating the process of batch dyeing after the formation of rugs, further ensuring that the rugs are bleach safe, quick drying, anti-skid, long life and stain resistant wherein, said process comprises following steps:
"PERMABACK" latex recipe for drylon tufted rug.

Trial lot
Part Particular Mixing Quantity(391 kgs latex)
Part A Natural latex ( Polyisoprene-Ammonia centrifuged natural rubber) 60%

SBR (Bunatex T 4320 -Aqueous dispersion of styrene and 1,3 Butadiene) 40%

Potassium Oleate soap 10 kgs

Water 9 kgs

Anti Oxidant Phenolic Acid 2kgs

Filler Calcium/ magnesium Carbonate MgC03 /CaC03 120kgs

Thickener Potassium Acrylate/ Sodium polyacrylate 2 kgs
PartB
(during application) GEL Ammonium Acetate 3%
PartC
(during application) Accelerator Mix Of Sulphur and Zinc Oxide 3%
(a) Tufting of micro-denier, dope dyed, cabled and heat-set polyester filament, or micro denier per filament, cabled, heat set , yarn dyed, antimicrobial treated polyester yarn, on cheeses is creeled on tufting machine to form tufted fabric roll;
(b) loading the tufted rolls of step (a) on Latex coating machine followed by application of "PERMABACK" latex mix to form a rug fabric;

(c) cutting the rug fabric of step (b) on a Infra-red guided cutting machine as per predetermined specification to form rugs;
(d) stitching of rugs of step (c) on four sides by stitching machine;
(e) washing, checking, mending and folding and packing the stitched rugs of step (d), in poly bags and;
(f) Packing the packed rugs of step (e) in cartons.
The process for making drylon PERMAMBACK rug as above, wherein the dope dyed, micro denier per filament, is in range of 1.0 to 5.0 DpF and with filaments of 600X2, 1200X2, 1800 and 2400 filaments, up on cabling wherein, the range is from 150 to 3600 filaments and or 75x2 to 1800x2. The drylon filaments as used in process are dope dyed during the process of filament extrusion and the dope dyeing is carried out by adding color master batch during extrusion of spinning process. The dope dyed filaments impart bleach safe and good color fastness to the said rug.
The process for making drylon "PERMABACK,: rug as above, wherein the , micro denier per filament, is in range of 1.0 to 5.0 DPF and with filaments of 600X2, 1200X2, 1800 and 2400 filaments, up on cabling wherein, the range is from 150 to 3600 filaments and or 75x2 to 1800x2 are heat set and dyed in pressure vessels. The drylon filaments as used in process are yarn dyed after the process of extrusions cabling and heat setting the yarn dyed filaments impart bleach safe and good color fastness to the said rug.
The process for making drylon "PERMABACK" rugs as described above further includes coating of the rugs with "PERM A BACK" latex mix on remote side to impart anti-skid and long life properties and to hold the tufts intact. The latexing is carried out on continuous latexing machine, wherein latexing mixture comprises of synthetic and natural latex and filler.

EXAMPLE 3:
"PERMABACK" latex recipe for drylon yarn tuft.

Trial lot
Part Particular Mixing Quantity{391 kgs latex)
Part A Natural latex ( Polyisoprene-Ammonia centrifuged natural rubber) 60%

SBR (Bunatex T 4320 -Aqueous dispersion of styrene and 1J Butadiene) 40%

Potassium Oleate soap lOkgs

Water 9kgs

Anti-Oxidant Phenolic Acid 2kgs

Filler Calcium/ magnesium Carbonate MgC03 / CaC03 120kgs

Thickener Potassium Acrylate/ Sodium polyacrylate 2kgs
PartB
(during application) GEL Ammonium Acetate 3%
PartC (during application) Accelerator Mix Of Sulphur and Zinc Oxide 3%
Technical Specification:

Design GEMINYI
Party WIL
Machine 3/16 cut
Yarn 1200/2 DENIER 1 DPF 3.3 TP1 S-TWIST 100% DRYLON
material code FCC0787053MPFDN01
Size 21x34
Backing HOpp

Coating type foam coat
latex type "PERMABACK"
Process route Washing and softness
1
percentage% Oz gsm inch cm gm/lOOmtr gm
Tufting width 151 384
tuft yarn gsm 28 958
backing width 165 420
baking gsm 3 110
Length 100
tuft rugs gsm 31 1068
grey tufted rugs wt/lOOmtr 409498
yarn waste 1
yarn wt
i 369143
yarn scrap 1846
backing wt 46460
backing waste 1
backing scrap 4269
backing area
Coating
coating gsm 24 814
coated rugs gsm 55 1881
coated rugs wt/IOOMTR 721546
coated rugs wt/mtr
solid coating wt 312048
solid contain 65
liquid coating 480074

Natural latex 93 Part A 167546
SBR

111857
Potassium Oleate soap

J2002
Water

11042

Anti-Oxidant 2400
Filler

144022
Thickener

2400
Accelerator 3 PartB 14402
Gel 3 PartC 14402
grey rugs width 22" 22 55 1
finish rugs width 21" 21 53 53
grey rugs length 35" 35 89
finish rugs length 34" 34 86 86
grey gsm 55 18$i
finish gsm 55 1872
rugs wt(for rectangle and square) 1897 921
Utilization 97
fiber loss due to processing 1
wt loss 5
finish wt(rectangle/square) 916

WASH WITH 1.5 OZ WASH WITH 1.5 OZ WASH WITH 1.5 OZ
CLORAX AND 1.5 OZ CLORAX AND 1.5 OZ CLORAX AND 1.5 OZ
LATEX COLOUR DETERGENT( AFTER DETERGENT(AFTER DETERGENT(AFTER
TYPE OF TUFT 10 WASH) 25 WASH) 50 WASH)

LATEX TURNS TO
LATEX TURNS TO LATEX TURNS TO YELLOWER &
ORDINARY YELLOWER & YELLOWER & CRACKS ALSO
LATEX EXPRESSO CRACKS CRACKS DAMAGE THE RUGS
PERMA NO YELLOWING NO YELLOWING NO YELLOWING
BACK AND THE LATEX AND THE LATEX AND THE LATEX
LATEX EXPRESSO COAT IS INTACT COAT IS INTACT COAT IS INTACT
2) Testing method: AATCC-135

WASH WITH 6 OZ WASH WITH 6 OZ WASH WITH 6 OZ
CLORAX AND 6 CLORAX AND 6 CLORAX AND 6
OZ OZ OZ
LATEX COLOUR DETERGENT(AFT DETERGENT(AFT DETERGENT(AFT
TYPE OF TUFT ER 10 WASH) ER 25 WASH) ER 50 WASH)
LATEX TURNS TO YELLOWER &
LATEX TURNS TO LATEX TURNS TO CRACKS ALSO
ORDINAR EXPRESS YELLOWER & YELLOWER & DAMAGE THE
Y LATEX 0 CRACKS CRACKS RUGS
PERMA NO YELLOWING NO YELLOWING NO YELLOWING
BACK EXPRESS AND THE LATEX AND THE LATEX AND THE LATEX
LATEX 0 COAT IS INTACT COAT IS INTACT COAT IS INTACT
3) Testing method: AATCC-135

NORMA LLAUND NORMALLAUND NORMALLAUND
LATEX COLOUR RY WASH RY WASH RY WASH
TYPE OF TUFT (AFTER 10 WASH) (AFTER 25 WASH) (AFTER 50 WASH)
LATEX TURNS TO YELLOWER &
LATEX TURNS TO LATEX TURNS TO CRACKS ALSO
ORDINAR EXPRESS YELLOWER & YELLOWER & DAMAGE THE
Y LATEX 0 CRACKS CRACKS RUGS
PERMA NO YELLOWING NO YELLOWING NO YELLOWING
BACK EXPRESS AND THE LATEX AND THE LATEX AND THE LATEX
LATEX 0 COAT IS INTACT COAT IS INTACT COAT IS INTACT

We Claim,
1. A "PERMABACK" coated rugs comprising a composition for special mixture of
latex for coating on one side of the tufted rugs wherein, the "PERMABACK" latex
composition comprises;
a. Natural latex in range of 55 - 75%;
b. synthetic latex in range of 45 - 25%;
c. filler in range of 110 145%;
d. thickener;
e. anti-oxidant
and other industrially acceptable ingredients.
2. The "PERMABACK" coated rugs coated with "PERMABACK" latex mixture as
claimed in claim 1 wherein the process of coating comprises:
a. Preparing the latex mixture, by increasing the quantity of the Natural latex to
range of 55-75% and reducing the Synthetic latex to range of 45 - 25%;
b. reducing the content of the filler in the "PERMABACK" mix to 110 - 145%,
thereby increasing the suppleness, resiliency of the coat, and
c. judiciously incorporating thickener and anti-oxidant in the "PERMABACK" mix
to enhance coat life and preventing the coat from turning yellow during
laundering, there by rendering it bleach proof.
3. The "PERMABACK" coated rugs as claimed in claims 1 and 2, wherein said rugs are made of material selected from natural fiber yans, regenerated cellulose fiber or synthetic fiber yarns.
4. The "PERMABACK" coated rugs as claimed in claims 1 to 3, wherein natural fiber yarn is selected from cotton, linen, hemp, sisal, wool, silk, ramie, banana fiber.

5. The "PERMABACK" coated rugs as claimed in claims 1 to 3, wherein synthetic fiber yarn is selected form viscose, bamboo, modal, rose or such as, nylon, polyester, Drylon ( Special polyester filament yarn) and polypropylene,
6. The "PERMABACK" coated rugs as claimed in any of above claims wherein enhanced useful life and bleach proof properties are imparted to said rugs.