High-range cattle hide sleeping mat leather manufactured through cooperation of zirconium-aluminum-titanium and tanning agent

Abstract

The invention discloses a manufacturing method for high-range cattle hide sleeping mat leather manufactured through cooperation of zirconium-aluminum-titanium and a tanning agent. Chromium and formaldehyde are not used during the production process, and damage of the chromium and the formaldehyde to human bodies is avoided. Compared with traditional sleeping mat leather production, the cattle hide sleeping mat leather manufactured through cooperation of the zirconium-aluminum-titanium and the tanning agent has the following advantages that (1) an obtained leather blank is light in color, and light-color leather production is facilitated; (2) the yield of leather is high, and economic benefits of an enterprise are increased; (3) the grain side is flat and fine, can be slightly coated, and is suitable for manufacturing high-range sleeping mat leather; (4) compared with sleeping mat leather produced with vegetable tanning agents, the high-range cattle hide sleeping mat leather is good in filling performance and soft in hand feeling; (5) the high-range cattle hide sleeping mat leather does not contain chromium and formaldehyde and can not damage human health.

Description

technical field [0001] The invention relates to the technical field of tanning chemistry and engineering, in particular to a production method for tanning high-grade cattle mat leather with a zirconium-aluminum-titanium compound tanning agent. Background technique [0002] Yellow cow mat leather is sought after by consumers because of its good air permeability, water vapor permeability and sweat absorption. The traditional mat leather is tanned with vegetable tanning agents. The produced cattle mat leather has good shape, hygienic properties, and good thermal conductivity, which can easily bring consumers a cool and comfortable feeling. Defects such as darker color and lower moisture and heat resistance stability. Since the excellent thermal conductivity of vegetable tanning agents is unmatched by other tanning agents, the combination of vegetable tanning agents is still used for tanning in the later research. [0003] However, due to the high production cost of pure veget...

AI Technical Summary

Problems solved by technology

[0003] However, due to the high production cost of pure vegetable tanned yellow ox mat leather, the poor feel of the finished leather, and the poor color brightness, most of the yellow ox mat leathers currently on the market are chrome-vegetable combined tanned yellow ox mat leather.

The use of chrome tanning agents to produce cattle mat leather will have the risk of generating hexavalent chromium in the subsequent use process. The toxicity of hexavalent chromium has long been recognized by the World Health Organization as a strong carcinogen, and cattle mat leather is in contact with human skin during use. Close contact will pose a serious threat to human health

At the same time, in order to improve the softness and sweat absorption of mat leather, aldehyde tanning agents will also be added in the subsequent wet dyeing and finishing process. The use of aldehyde materials also has the risk of releasing formaldehyde. Formaldehyde has been listed by the National Cancer Research Institute. "known carcinogen"