Yarn formed from recycled cotton and recycled para-aramid, and fabrics made therefrom

a technology of para-aramid and yarn, which is applied in the direction of weaving, yarn, protective fabrics, etc., can solve the problems of compromising the strength and softness of yarns and fabrics, and the manufacturing of cotton fibers is harmful to the environmen

Inactive Publication Date: 2019-06-20
GAP INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, the agriculture processes associated with growing cotton, and the manufacturing of cotton fibers are harmful to the environment because these processes utilize large quantities of water, herbicides, fertilizers and pesticides, which are required for growing the cotton.
Both the growing of cotton and the manufacture of cotton fibers contribute to harmful pollutants to air and water, and use significant amounts of energy and other non-renewable resources.
Unfortunately, staple cotton fibers produced from recycled cotton fabric are shorter in length compared to staple fiber from virgin cotton, thereby, compromising the strength and softness of the yarns and fabrics made thereof.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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  • Yarn formed from recycled cotton and recycled para-aramid, and fabrics made therefrom
  • Yarn formed from recycled cotton and recycled para-aramid, and fabrics made therefrom
  • Yarn formed from recycled cotton and recycled para-aramid, and fabrics made therefrom

Examples

Experimental program
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Effect test

example 1

rics Made of Recycled Cotton and Recycled Para-Aramid

[0201]This example illustrates that denim fabrics containing recycled cotton and 3% recycled para-aramid have increased breaking strength, tear strength, and abrasion resistance compared to denim fabric containing 100 wt % virgin cotton.

[0202]In the study, the breaking strength and tear strength of denim samples were tested. The denim samples were treated using one of the following conditions: (A) rinse wash; (B) edge damage (delicate)+bioenzyme treatment for 20 minutes; (C) whiskering and shaving+bioenzyme treatment for 40 minutes; and (D) whiskering and shaving+bioenzyme treatment for 60 minutes+chlorine bleach treatment.

[0203]Breaking strength was evaluated using a standard test method (ASTM D 5034) for determining breaking strength of textile fabrics (grab method). Briefly, a rectangular shaped fabric is loaded into the clamps or grips of the standard test equipment with the longer dimension parallel to the direction to be tes...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Abstract

Described herein are spun yarns, core spun yarns, and fabrics such as denim fabrics made thereof that contain recycled cotton fibers and recycled para-aramid fibers. The combination of fibers in the yarns and fabrics provide desirable properties such as increased tear strength, breaking strength, and abrasion resistance compared to yarns and fabrics made of 100 wt % cotton.

Description

CROSS-REFERENCE TO RELATED APPLICATION[0001]This application claims benefit of U.S. Provisional Application No. 62 / 598,867, filed on Dec. 14, 2017, the disclosure in its entirety is herein incorporated by reference.BACKGROUND OF THE INVENTION[0002]The typical life cycle of denim begins with the extraction of raw materials and ends with disposal of the denim. However, the life cycle can be maintained as an ongoing circle by way of recycling of materials and components and producing sustainable products from the recycled materials. Such a closed-loop production cycle is advantageous in creating a sustainable textile industry.[0003]Life Cycle Assessment (LCA) studies have been performed to analyze the potential environmental impact of a product such as a cotton textile from raw material extraction to endproduct disposal. This systems-based, quantitative method has been used to evaluate the environmental impact of the different life stages for a pair of denim jeans including the stages ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): D02G3/04D03D1/00D02G3/44D03D13/00D03D15/00
CPCD02G3/047D03D1/0041D02G3/442D03D13/004D03D15/00D10B2501/06D10B2201/02D10B2331/04D10B2201/20D10B2201/10D10B2201/08D10B2201/06D10B2331/021D10B2501/04D03D15/56D02G3/328D02G3/36D03D15/283D03D15/217
Inventor O'HARA, TETSUYA
Owner GAP INC
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