CLIAMS:STATEMENT OF CLAIMS
We claim:
1. A method for producing a fabric and textile product without use of chemicals, said method comprising:
passing a continuous length of the fabric of a predetermined width on a singeing machine at a predetermined speed;
subjecting the fabric treated in singeing machine to an enzymatic desizing;
washing the fabric obtained from enzymatic desizing;
impacting at least one of the surfaces of the fabric with a plurality of bristles;
passing the fabric treated by the ceramic crystal bristles to a stenter machine; and
transferring the fabric obtained from the stenter machine to a sanforizing machine.
2. The method as claimed in claim 1, wherein said fabric in the singing machine is subjected to a gas singe having a flame temperature about 800° C to 1000° C and operating at a speed of 80 m/min to 100 m/min.
3. The method as claimed in claim 1, wherein said enzymatic desizing takes place in a desizing machine where the enzymes are introduced at a temperature of 60° C to 80° C to react with the fabric for about 6 to 8 hours .
4. The method as claimed in claim 1, wherein the fabric is washed with water having a temperature of about 85° C to 95° C at a speed of 50 - 60 m/min.
5. The method as claimed in claim 1, wherein said bristles are ceramic crystal bristles provided on a rotating cylinder which contacts at least one of the fabric surfaces.
6. The method as claimed in claim 5, wherein the ceramic crystal bristles are diamond shaped.
7. The method as claimed in claim 1, wherein said stenter machine facilitates in controlling width of the fabric throughout its length.
8. The method as claimed in claim 1, wherein said fabric is passed between a rubber sleeve and a heated rotating cylinder having a temperature of about 50° C to 60° C.


Dated: 10th Day of March, 2014 Signature
Arun Kishore Narasani Patent Agent
,TagSPECI:FORM 2
The Patent Act 1970
(39 of 1970)
&
The Patent Rules, 2005

COMPLETE SPECIFICATION
(SEE SECTION 10 AND RULE 13)

TITLE OF THE INVENTION

“NATURAL FINISH FABRIC”

APPLICANTS:

Name : Welspun India Limited.

Nationality : Indian

Address : Welspun House, 6th Floor, Kamala City, Senapati Bapat Marg, Lower Parel, Mumbai – 4000 13

The following specification particularly describes and ascertains the nature of this invention and the manner in which it is to be performed:-

TECHNICAL FIELD
[001] The embodiment herein generally relates to a method for producing an environmental friendly fabric and more particularly but not exclusively to a method of producing environment-friendly fabric and textile products without use of any chemicals.
BACKGROUND
[002] Textile industry is one of the industries consuming the most water, air, chemical agents and power. Various processes are applied to textile products from raw material until finished product. Various chemicals and dyeing agents are applied to the textile goods under different conditions particularly at finishing operations so as to provide the requirements of the customers (color, gluing etc.). The chemicals and dyeing agents are hazardous to the environment.
[003] Further, the textile products are treated with various base and acid agents during finishing process. The acid and acidic residual remaining on the textile products can irritate the skin in humid ambient. For that reason, pH value of textile products should be same as normal pH value of human skin (pH 5.5).
[004] Also, depending on species of fiber, dermatitis may occur on the skin. In conventional dermatitis cases, the veins close to skin reddens and inflames. If not recovered in due time, the color of skin gets darker and deep scars may occur. Particularly, synthetic fibers cause dermatologic problems such as allergy etc.
[005] The clothes being close in contact with human body should not harm people in any way either through skin contact, breathing or respiratory. Further, the fabrication process should not harm the environment.
[006] Therefore, there is a need for a method for producing environmental friendly fabrics without use of any chemicals. Further, there is also a need for a method that can obviate aforementioned drawbacks.
OBJECT OF THE INVENTION
[007] The principle object of the embodiments herein is to provide a method for producing environmental friendly fabrics without use of any chemicals.
[008] Another object of the embodiments herein is to ensure fabric finishing process by use of only water, water vapor (steam) and enzymes so as to prevent use of chemical agents.
[009] Yet another object of the embodiments herein is to reduce power consumption and water consumption.
[0010] These and other objects of the embodiments herein will be better appreciated and understood when considered in conjunction with the following description and the accompanying drawings. It should be understood, however, that the following descriptions, while indicating preferred embodiments and numerous specific details thereof, are given by way of illustration and not of limitation. Many changes and modifications may be made within the scope of the embodiments herein without departing from the spirit thereof, and the embodiments herein include all such modifications.
SUMMARY
[0011] Accordingly, the embodiments herein provide a method for producing a fabric and textile products without use of chemicals. The method includes passing a continuous length of the fabric on a singeing machine at a predetermined speed. Further, the method includes subjecting the fabric treated in singeing machine to an enzymatic desizing. Further, the method includes washing the fabric obtained from enzymatic desizing. Furthermore, the method includes impacting at least one of the surfaces of the fabric with plurality of bristles after washing. In addition, the method includes passing the fabric impacted with the bristles to a stenter machine. Further, the method includes transferring the fabric obtained from the stenter machine to a sanforizing machine.
BRIEF DESCRIPTION OF FIGURES
[0012] This invention is illustrated in the accompanying drawings, throughout which like reference letters indicate corresponding parts in the various figures. The embodiments herein will be better understood from the following description with reference to the drawings, in which:
[0013] FIG. 1 depicts the flowchart of a method for producing environment friendly fabric and textile products without use of chemicals, according to an embodiment as disclosed.

DETAILED DESCRIPTION OF THE INVENTION
[0014] The embodiments herein and the various features and advantageous details thereof are explained more fully with reference to the non-limiting embodiments that are illustrated in the accompanying drawings and detailed in the following description. Descriptions of well-known components and processing techniques are omitted so as to not unnecessarily obscure the embodiments herein. The examples used herein are intended merely to facilitate an understanding of ways in which the embodiments herein may be practiced and to further enable those of skill in the art to practice the embodiments herein. Accordingly, the examples should not be construed as limiting the scope of the embodiments herein.
[0015] The embodiments herein achieve a method for producing environment friendly fabric and textile products without use of chemicals. Referring now to the drawing, and more particularly to FIG. 1, where similar reference characters denote corresponding features consistently throughout the figure, there are shown preferred embodiments.
[0016] FIG. 1 depicts the flowchart of a method for producing environment friendly fabric and textile products without use of chemicals, according to an embodiment as disclosed. The method 100 includes the following steps: (a) singeing, (b) enzyme desizing, (c) water washing, (d) impacting the fabric with plurality of bristles (e) stentering, and (f) sanforizing.
[0017] In one embodiment, the method 100 includes passing the fabric through a singeing machine (101) which is done in order to obtain a clean fabric surface. The process is usually carried out in a singeing machine by passing one or both sides of a fabric over a gas flame. However, it should be noted that the singeing can be done using plate singeing machine and a rotary-cylinder singeing machine. The fabric is passed quickly through a high temperature flame which is about 800° C to 1000° C. The flame intensity is 12 mm -18 mm millibar. The speed with which the fabric passes through the flame may vary from 80 m/min to 100 m/min.
[0018] At step 103, the method includes enzymatic desizing. In one embodiment, desizing process is carried out to remove the size materials from the fabric. Enzymatic desizing is a desizing process of degrading starch size on cotton fabrics using enzymes. In an embodiment, enzymatic desizing takes place in a desizing machine where the enzymes are introduced at a temperature of 65 to 80 deg C to react with the fabric for about 6 to 8 hours. The enzymes added for desizing is Alpha amylase. During desizing the temperature of the enzymatic reaction is maintained at about 60 – 80 deg, and water hardness is maintained at about 4 – 6 ppm, to perform effective desizing.
[0019] At step 105, the method includes washing the fabric obtained from desizing. In one embodiment, the fabric is washed using water having a temperature of about 85° C to 95° C. the washing is carried out to remove the dissolved sizing material from the surface of the fabric. This is done to ensure that all sizing content from fabric is washed away.
[0020] At step 107, the method includes impacting the surface of the fabric against a plurality of bristles. In one embodiment, the fabric after washing is made to pass through a peaching machine which includes a cylindrical rotating member having plurality of ceramic crystal bristles. The ceramic crystal bristles are produced in a diamond shape. The fabric is passed through the peaching machine at a speed of 30-35 meter per min, where the ceramic crystal bristles makes contact with the fabric surface and causes the fibers to protrude the surface of the fabric to provide a smooth finish. The process of passing the fabric on the ceramic crystal bristles is referred as peaching.
[0021] At step 109, the method includes passing the fabric to a stenter machine. The stenter is an open-width fabric-finishing machine in which the fabric are held by attachments to a pair of endless travelling chains that the fabric is finished to a specified width. The Attachments may be pins (pin stenter) or clips. In one embodiment, the main purpose of using the stenter is to maintain a uniform width throughout the length of the fabric. Further, the stenter is also used for controlling the GSM (Gram per Square Meter) of the fabric. In one embodiment, the peached fabric is passed through plain water and then treated with a hot air having a temperature of 80° C to 130° C to control the width shrinkage of the fabric.
[0022] At step 111, the method includes passing the fabric through a sanforizing machine. In one embodiment, the fabric is continually fed into the sanforizing machine and moistened with either water or steam having a temperature of 50° C to 60° C. A first rotating cylinder having a rubber sleeve is pressed against a second rotating cylinder. The second rotating cylinder is a heated to predetermined temperature. The sleeve initially gets compressed and then laterally expands. After expansion the sleeve returns to its normal thickness by relaxing. The fabric which is to be treated is passed between rubber sleeve and the second heated cylinder. Thus, the sanforizing process reduces the length wise shrinkage of the fabric.
[0023] The embodiments disclosed herein provides a textile fabric finishing process, using a purely physical finishing process, completely without chemical treatment, reducing pollution, is a green finishing process.
[0024] 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.