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

A high-grade technology with tanning agent is applied in the field of tanning high-grade cattle mat leather with zirconium-aluminum-titanium co-tanning agent, which can solve the problems of high production cost, poor color brightness and human health threat of pure vegetable tanned cattle mat leather. , to achieve the effect of maintaining the integrity of the grain surface, eliminating the harm to human health and the environment, and increasing the economic benefits of the enterprise

Active Publication Date: 2016-01-06
SICHUAN UNIV
View PDF6 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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"

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] (1) Take the gray bare hide after splitting and weigh it as the basis for counting in the deliming, softening, pickling and tanning sections;

[0017] (2) The gray bare hide after splitting is delimed, softened and pickled according to the conventional process, and the pH at the end of pickling is 2.5-2.7;

[0018] (3) Tanning: at the temperature of the bath liquid in the drum at 25°C, add zirconium-aluminum-titanium compound tanning agent (produced by Jinkun Chemical Co., Ltd. Content is 8%±2%), rotate for 3 hours; then use 1:20 water-dissolved baking soda solution to extract alkali, so that the end point pH is 4.0-4.2; add 50-60℃ heat of 100% of gray bare hide weight Water, make the liquid ratio reach 1.5, make the temperature of the bath liquid rise to 40°C, and continue to act for 3 hours; add 25% vegetable tanning agent (Mimosa company, wattle extract tanning agent) of the weight of gray bare hide to the same bath, and rotate After 6 hours, stop the drum and let i...

Embodiment 2

[0021] (1) Take the gray bare hide after splitting and weigh it as the basis for counting in the deliming, softening, pickling and tanning sections;

[0022] (2) The gray bare hide after splitting is delimed, softened and pickled according to the conventional process, and the pH at the end of pickling is 2.5-2.7;

[0023] (3) Tanning: at the temperature of the bath liquid in the drum at 25°C, add a zirconium-aluminum-titanium compound tanning agent (produced by Jinkun Chemical Co., Ltd. Content is 8%±2%), rotate for 3-4 hours; then use 1:20 water-dissolved baking soda solution to extract alkali, so that the end point pH is 4.0-4.2; add 50-60℃ of 100% weight of gray bare skin hot water, so that the liquid ratio reaches 1.5, and the temperature of the bath liquid rises to 40°C, and continues to act for 3 hours; add 10% vegetable tanning agent (Mimosa company, bayberry extract tanning agent) of the weight of gray nude leather to the same bath, and rotate After 4 hours, stop the ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

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...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): C14C3/02C14C3/10
Inventor 但卫华黄秦但年华
Owner SICHUAN UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap