Textile
| Tue 03 Nov 2026
Beijing, Nov. 3 -- Chinese Patent for Variable-diameter Bobbin for Supercritical Waterless Dyeing has been issued to Qingdao Jifa Group Co Ltd. This invention was developed by Liu Shaobing, Wang Dawei, Yang Weidong, Wan Gang, Wang Jian, Liu Chongbo, Du Jihao, Guo Kun, Lin Dapeng and Wang Chao.
The patent application number is..