US 11,834,781 B2
Method of continuous dyeing with reactive dyes in wet conditions
Zhiping Mao, Binzhou (CN); Hongyu Sun, Binzhou (CN); Chunguang Li, Binzhou (CN); Rongxia Jia, Binzhou (CN); Yi Zhong, Binzhou (CN); Hong Xu, Binzhou (CN); Limin Wang, Binzhou (CN); Qi Yu, Binzhou (CN); Xiaomin Liu, Binzhou (CN); Qingbo Lu, Binzhou (CN); Chunying Sheng, Binzhou (CN); Engang Lu, Binzhou (CN); Qisheng Zhao, Binzhou (CN); Wei Wu, Binzhou (CN); Yamin Dai, Binzhou (CN); and Jinbo Wang, Binzhou (CN)
Assigned to HUAFANG CO., LTD, Binzhou (CN); DONGHUA UNIVERSITY, Shanghai (CN); and BINZHOU HUA TEXTILE ENGINEERING TECHNOLOGY RESEARCH INSTITUTE CO., LTD., Binzhou (CN)
Filed by HUAFANG Co., Ltd., Binzhou (CN); Donghua University, Shanghai (CN); and Binzhou Hua Textile Engineering Technology Research Institute Co., Ltd., Binzhou (CN)
Filed on Jul. 20, 2021, as Appl. No. 17/381,175.
Application 17/381,175 is a continuation in part of application No. PCT/CN2020/000151, filed on Jul. 15, 2020.
Claims priority of application No. 201911081088.3 (CN), filed on Nov. 7, 2019.
Prior Publication US 2021/0348329 A1, Nov. 11, 2021
Int. Cl. D06P 5/00 (2006.01); D06P 1/38 (2006.01); D06P 5/20 (2006.01)
CPC D06P 1/38 (2013.01) [D06P 5/2077 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A method, comprising:
1) adding fabric to a mixture of a dye liquor and an alkali through a one-bath-one-step method;
2) immersing the fabric pretreated in 1) in a padding liquor with an air film horizontal pad dyeing machine;
3) preheating the fabric after being treated in 2) at a temperature of 50-90° C.; and
4) rolling and batching the fabric after being treated in 3) at a temperature of 10-70° C. for 2-72 hours.