Acid black dye with green light and preparation method thereof
By mixing dye compounds in specific proportions and optimizing the preparation process, the problem of acid black dyes failing to exhibit green light has been solved, resulting in the preparation of acid black dyes with ideal color fastness and unique color that exhibit green light, thus meeting market demand.
CN121343389APending Publication Date: 2026-01-16NINGBO MODERN FINE CHEM CO LTD
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Patent Information
- Application Number
- CN202511391059.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-26
- Publication Date
- 2026-01-16
AI Technical Summary
Technical Problem
Existing acid black dyes are unable to produce the desired green effect, resulting in products with colors that are not unique or vibrant enough to meet market demand for products with special color effects.
Method used
A green-tinted acid black dye was prepared by mixing dye compounds A, B, C, and D in a specific ratio, adjusting the black tone of dye compounds A and B, and adding the green light components of dye compounds C and D. The dye preparation process was optimized by uniformly mixing and reacting the dye with dispersant MF and emulsifier L-3.
Benefits of technology
The preparation of an acid black dye with a greenish tint was achieved, possessing ideal color fastness and unique color effects, meeting market demands.
✦ Generated by Eureka AI based on patent content.
Abstract
The invention relates to the technical field of dyes, in particular to an acid black dye with green light and a preparation method thereof.The preparation method comprises the steps that a front color base I and a front color base II are synthesized firstly, then the front color base I and chromic oxide are complexed to obtain a reaction solution I, then the front color base II is added into the reaction solution I, and the acid black dye with the green light is prepared. The preparation method is simple and environment-friendly, a dye compound A, a dye compound B, a dye compound C and a dye compound D are formed by complexing a front color base I, a front color base II and chromium ions, and then the adding amount proportion of the front color base I, the front color base II and the chromium ions is adjusted; the ratio of the dye compound A to the dye compound B to the dye compound C to the dye compound D is adjusted, the green and full acid black dye is prepared, and the obtained acid black dye with green light is excellent in color fastness.
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