The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 07, 2021
Filed:
Nov. 23, 2018
Soochow University, Suzhou, CN;
Jiangsu Danmao Textile Co., Ltd., Jiangsu, CN;
Nantong Textile and Silk Industrial Technology Research Institute, Jiangsu, CN;
SOOCHOW UNIVERSITY, Suzhou, CN;
JIANGSU DANMAO TEXTILE CO., LTD., Danyang, CN;
NANTONG TEXTILE AND SILK INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE, Nantong, CN;
Abstract
The invention discloses a special-purpose reactive disperse dye for waterless dyeing of natural fibers in supercritical COfluid and an intermediate thereof. The reactive disperse dye has a longer alkane-chain bridging group between a chromophoric parent structure and an active group of the dye, which effectively promotes the donating-withdrawing effect on the electron cloud in the conjugated system, enhances the hyperchromic effect, effectively reduce the influence of the active group itself and its reaction on the dye coloring system, improves the color and stability against acid and alkali of the dye, and facilitate the improvement of the compatibility of the dye with supercritical fluid and the dyeing performance for natural fibers as well. The invention also discloses an intermediate of the reactive disperse dye, and a method for preparing the reactive disperse dye.