A kind of production method of environment-friendly semi-vegetable tanned waxy bovine leather

Abstract

The invention discloses an environment-friendly production method of semi-vegetable tanned wax-modified bovine leather, which includes the steps of material preparation, rewetting, tanning, neutralization, filling dyeing and fatliquoring in sequence. Wetting agent softens leather, which can not only achieve fast rehumidification and evenly absorb water, but also disperse leather fibers and facilitate the absorption of subsequent chemical materials. In the tanning process, using vegetable extract tanning agent instead of conventional chrome powder tanning can not only ensure the physical performance index of chrome tanned leather, but also ensure that the finished leather has a soft and lubricated feel, suitable plumpness and elasticity. No chromium pollution, clean and environmentally friendly. In the fatliquoring process, the grease 101 with waterproof ability and wax change effect is used, which can not only increase the waterproof and anti-aging ability of the leather itself, but also produce a color change effect through high temperature wax change in the subsequent finishing process, adding fashion elements to the product and improving the product. grade.

Description

technical field [0001] The present invention relates to a kind of leather manufacture method, be specifically related to a kind of production method of environment-friendly semi-vegetable tanned wax tire leather. Background technique [0002] Human beings are increasingly calling for strengthening the protection of the environment. In leather production, the waste liquid produced by the chrome tanning method brings serious pollution in terms of environmental protection and the carcinogenic effect of hexavalent chromium, making the development of a clean production process for chrome-free tanned leather has become a research hotspot in the contemporary tanning industry. In the re-humidification process, the traditional re-humidification process has no obvious re-humidification effect, and contains ammonia nitrogen compounds, resulting in large pollution; in the retanning process, the traditional retanning process is easy to release formaldehyde, which is harmful to the human ...

AI Technical Summary

Problems solved by technology

In the re-humidification process, the traditional re-humidification process has no obvious re-humidification effect, and contains ammonia nitrogen compounds, resulting in large pollution; in the retanning process, the traditional retanning process is easy to release formaldehyde, which is harmful to the human body. Therefore, in view of the above problems, It is urgent to issue a new green and environmentally friendly tanning process

[0003] In addition, the leather made by the traditional chrome tanning method lacks fashion elements and is of ordinary quality

Images