Red-light navy blue dye composition and preparation method thereof
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- 广东华博知识产权运营有限公司
- Publication Date
- 2014-02-05
- Estimated Expiration
- Not applicable · inactive patent
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Abstract
Description
technical field
[0001] The invention belongs to the field of chemical industry, and more specifically relates to a dye composition and a preparation method thereof. Background technique
[0002] When the polyester fabric contains PVA pulp, because the macromolecular PVA is extremely difficult to remove, at present, strong alkali / surfactant, strong alkali / oxidant (such as hydrogen peroxide, etc.) are used for desizing, and the desizing agent containing oxidant can Oxidation degrades macromolecular PVA into small molecules, and the resorption / adhesion ability of degraded PVA to dyes and fibers is weakened, which is conducive to the improvement of dyeing uniformity and color fastness (such as washing fastness and rubbing fastness). However, only using strong alkali / surfactant has the disadvantage of desizing and uncleanness. Because of the strong binding force between macromolecular PVA and fiber, the PVA remaining on the fiber cannot be effectively removed during acid dyeing, ...