US 12,110,633 B2
Method for making burnout fabric
Tao Zheng, Shanghai (CN); and Fang Bao, Shanghai (CN)
Assigned to Shanghai Press Intimates Co., Ltd., Shanghai (CN)
Appl. No. 17/595,053
Filed by Shanghai Press Intimates Co., Ltd., Shanghai (CN)
PCT Filed Nov. 11, 2019, PCT No. PCT/CN2019/117197
§ 371(c)(1), (2) Date Nov. 8, 2021,
PCT Pub. No. WO2020/228277, PCT Pub. Date Nov. 19, 2020.
Claims priority of application No. 201910410477.X (CN), filed on May 10, 2019.
Prior Publication US 2022/0220668 A1, Jul. 14, 2022
Int. Cl. D06Q 1/02 (2006.01); D03D 15/47 (2021.01); D06P 1/48 (2006.01); D06P 1/673 (2006.01)
CPC D06Q 1/02 (2013.01) [D03D 15/47 (2021.01); D06P 1/48 (2013.01); D06P 1/67316 (2013.01); D10B 2201/02 (2013.01); D10B 2331/04 (2013.01); D10B 2401/021 (2013.01); D10B 2401/022 (2013.01)] 6 Claims
 
1. A method for making a burnout fabric, comprising the steps of:
(1) pretreating a greige fabric, which comprises: stitching, washing with water, oxygen bleaching, and stoving the greige fabric for the first time;
(2) performing burnout treatment on the pretreated greige fabric by means of a burnout paste containing sulfuric acid, synthetic gum tragacanth, and sodium alginate; and
(3) performing post-treatment on the greige fabric that has experienced the burnout treatment, to obtain a burnout fabric, the post-treatment including: stoving for the second time, steaming, washing, and drying;
wherein in step (1), the greige fabric is obtained by subjecting a core-spun yarn to spooling, heat setting twisting, warping, quilling, sizing, and weaving process, sequentially, and
wherein the core-spun yarn comprises a hydrophobic polyester filament as a yarn core wrapped with a hydrophilic cotton fiber; a twist factor of the core-spun yarn ranges from 300 to 450; a cotton coverage of the core-spun yarn ranges from 43% to 48%.