Magenta dye, method for preparing the same, and roll material
By preparing rolls formed by reacting liquid magenta dye with resin, the problem of poor migration resistance of existing magenta PET roll coatings in solvents has been solved, enabling safer and more environmentally friendly dye applications.
CN118325360BActive Publication Date: 2026-03-31浙江材华科技有限公司
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Patent Information
- Application Number
- CN202410425762.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-10
- Publication Date
- 2026-03-31
- Estimated Expiration
- 2044-04-10
AI Technical Summary
Technical Problem
The dyes used in the coating of existing rose-red PET rolls have poor resistance to migration in solvents. Uneven dissolution and mixing of the powder leads to pinholes and particle protrusions, and the dust is harmful to human health and the environment.
Method used
A liquid rose-red dye, formed from methoxylated aniline polyoxyethylene ether and keto acid raw materials, is prepared through a dehydration and ring-closing reaction. The dye is uniformly mixed with resin and reacted to form a roll material with good migration resistance.
Benefits of technology
It improves the dye's resistance to migration in solvents, avoids pinholes and particle protrusions, reduces dust hazards, and enhances the safety and environmental friendliness of roll materials.
✦ Generated by Eureka AI based on patent content.
Abstract
The present application relates to the technical field of dyes, and in particular to a magenta dye, a preparation method thereof and a roll material. The magenta dye comprises a polyether segment formed by a methoxy-containing aniline polyoxyethylene ether raw material and a keto acid segment formed by a keto acid raw material, and the polyether segment and the keto acid segment are fused into a ring. The magenta dye is a liquid, and can be uniformly mixed with a resin and can react with the resin, so that the roll material formed has good resistance to migration in a solvent.
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