Leather finishing aid, method for its preparation and use

By preparing a leather finishing agent containing water-soluble graphene and modified casein, the problems of limited dispersibility and performance improvement of existing finishing agents are solved, and a leather coating effect with high tear strength and soft feel is achieved.

CN117701151BActive Publication Date: 2026-06-09SICHUAN DOWELL SCI & TECH INC
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SICHUAN DOWELL SCI & TECH INC
Filing Date
2023-12-21
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

Existing leather finishing auxiliaries cannot simultaneously meet the requirements of high abrasion resistance and high tear strength. Furthermore, graphene oxide has poor dispersibility in finishing auxiliaries, resulting in limited performance improvement. In addition, polyurethane resin has certain irritant and sensitizing properties.

Method used

Leather finishing aids are prepared by physical modification using components such as water-soluble graphene, solid paraffin, oils, high-grade fatty alcohols, thickeners, emulsifiers, matting fillers, and modified casein. Water-soluble graphene can be stably dispersed for a long time, modified casein improves the flexibility of the coating, and the synergistic effect of the components improves the tear resistance and reduces the tensile strength of the coating film.

Benefits of technology

It effectively avoids the problem of leather stacking and stickiness, improves the tear resistance of the coating, reduces the tensile strength of the coating film, and gives the coating a soft feel and good hiding effect.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application discloses a leather finishing aid and a preparation method and application thereof, and belongs to the technical field of leather finishing. The leather finishing aid comprises the following components in parts by weight: water-soluble graphene: 1-3 parts; solid paraffin: 3-8 parts; grease: 5-10 parts; high-grade fatty alcohol: 1-5 parts; thickening agent: 0.2-1 part; emulsifier: 1-3 parts; matt filler: 10-20 parts; modified casein: 5-15 parts; and water: 60-75 parts. The leather finishing aid can effectively avoid the problem of adhesion of stacked leather, improve the tear strength of a coating, and reduce the tensile strength of a coating film. Moreover, the leather finishing aid can obtain leather coatings with different gloss, effectively improve the softness of a coating, endow the coating with a delicate and soft hand feeling, and improve the hiding effect of the coating.
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