Chrome-free tannage producing technique for goat glove leather

Abstract

The invention relates to a processing technique of leather, in particular to a chrome-free tannage manufacturing technique of goat glove leather, aims at solving the problem of heavy environment pollution caused by the chrome sewage in the prior art of chrome tannage. The processing technique of leather adopts a technical proposal that the chrome-free tannage manufacturing technique of goat glove leather comprises a plurality of successively steps as followings: softening, dipping in acid, organophosphor tanning, oxidation, stacking, sammying and extension, shaving, washing, degreasing, rinse, washing, retanning and stuffing, washing, and routine following chrome tanning technique. The processing technique of leather has the advantages of eliminating the environment pollution caused by the heavy metal chrome, reducing the cost of sewage treatment, producing environment-friendly goat glove leather with soft, plumpy, highly resilient, and flowing hand feeling, smooth grain, brilliant color, qualified formaldehyde content as ecological leather, over 88 DEG C shrinkage temperature, and completely same mechanical property as routine chrome tannage leather.

Description

Technical field: [0001] The invention relates to a leather processing technology, in particular to a chrome-free tanning production technology of goatskin glove leather. Background technique: [0002] Chrome tanning is currently the most widely used method in the world and has the best tanning effect. The leather tanned by it has many advantages such as heat and humidity resistance, good stability, soft and plump finished leather, and good formability. For more than one hundred years since the advent of chrome tanning, it has always occupied a dominant position with its superior tanning performance. With the progress of the times and the development of society, the chrome tanning method will also face severe challenges. On the one hand, the reserves of chromium in the world are limited after all, and the resources of chromium in our country are not abundant. It is an unavoidable reality that a large amount of use will be exhausted. Therefore, it is inevitable to study chrom...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a non-production process of goat glove leather, to solve the problem of serious environmental pollution caused by chromium-containing sewage in the existing chrome tanning technology