Gardenia blue pigment dyeing method for wool fabrics
Patent Information
- Authority / Receiving Office
- CN · China
- Current Assignee / Owner
- TIANJIN POLYTECHNIC UNIV
- Publication Date
- 2018-01-19
- Estimated Expiration
- Not applicable · inactive patent
Abstract
Description
technical field
[0001] The invention relates to the field of natural dye dyeing, in particular to a method for dyeing wool fabric with gardenia blue pigment. Background technique
[0002] With the increasing development of synthetic dyes, the textile industry overuses synthetic dyes. According to statistics, in recent years, about 1.3 million tons of dyes, pigments and dye precursors are produced and used every year, worth about 23 billion US dollars, most of which are synthetic dyes , its production and processing waste and the discharge of dyeing waste liquid have caused considerable harm to the environment, and some azo synthetic dyes have been found to be biologically toxic and carcinogenic and teratogenic.
[0003] Natural dyes are derived from natural resources, exhibit good environmental compatibility and biodegradability, meet the requirements of green chemistry, and are increasingly becoming the research focus of new dye development.
[0004] Gardenia blue pigment ...