Poly hydroxyl alkyl phosphine-organic silicon tanning agent, its preparation and application in fur tanning

Abstract

This invention relates to a poly hydroxyl alkyl phosphine-organic silicon tanning agent, its preparation, and its application in fur tanning,the poly hydroxyl alkyl phosphine comprises organic silicon of molecular mass range 10,000-200,000, surface active agent, stabilizer and pure water,in the application of leather and fur tanning, the silicon tanning presents many advantages: it does not alterfur indumentum, the tanned fur has good dry / wet washing toleration, the leather does not de-tan, the tanning agent itself has low toxicity, no potential safety hazard, does not accumulate in the bodyof organism, and does not cause cancer, deform and genetic mutation.

Description

technical field [0001] The invention relates to a polyhydroxy alkylphosphine-organic silicon tanning agent, its preparation method and its application in fur tanning. Specifically, it relates to a new environment-friendly leather tanning agent suitable for leather tanning technology with low energy consumption and low hair damage, its preparation method and its application in fur tanning. technical background [0002] At present, the following tanning methods are widely used in leather tanning: 1) metal tanning agent tanning: chrome tannin is the best representative. Chrome tanning utilizes the complexation of trivalent chromium and raw hide collagen to achieve leather tanning. The principle of tanning leather with other metal tanning agents is the same as that of chrome tanning, but the effect is poor, such as aluminum tanning, zirconium tanning, etc. 2) Vegetable extract tanning: The physical properties of tanned leather are very special, mainly relying on intermolecular...

AI Technical Summary

Problems solved by technology

[0005] The above-mentioned prior art uses polyhydroxyalkylphosphine compounds or their derivatives in contact with the hair, causing varying degrees of damage to the hair during the tanning process.

Adding organic silicon to combine with wool can greatly reduce the damage of wool, but it will reduce the contact between polyhydroxyalkylphosphine compound and wool, and the dyeing performance of wool will be reduced, resulting in difficulty in dyeing or dyeing.