Production method for environmentally-friendly semi-vegetable tanned waxed tyre cow leather

Abstract

The invention discloses a production method for environmentally-friendly semi-vegetable tanned waxed tyre cow leather. The production method comprises the following steps of sequentially carrying outthe processes of material preparing, rewetting, tanning, neutralizing, packed dyeing and fat liquoring. According to the production method, in the rewetting process, an environmentally-friendly special-effect rewetting agent is adopted for softening the leather, so that rapid rewetting can be realized, the moisture can be uniformly absorbed, in addition, leather fibers can be dispersed, the absorption of subsequent materials can be facilitated, the rewetting time can be short, the rewetting effect can be good, and the purposes of cleanness and environmental protection can be achieved; and in the tanning process, a vegetable tannin agent is adopted to replace conventional chromium powder for tanning, so that the physical performance indexes of the chrome tanned leather can be guaranteed, inaddition, the finished leather has a soft and smooth hand feeling and proper fullness and elasticity, and therefore chromium pollution cannot be generated, and cleanness and environmental protectioncan be realized; in the fat liquoring process, grease 101 with the waterproof capability and the waxing effect is adopted, so that the waterproof and anti-aging capabilities of the leather can be improved, in addition, the color-changing effect can be achieved through high-temperature waxing in a subsequent coating process, the fashionable elements of the product are added, and the product grade is improved.

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, w

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