Method for forming pebble-grain surface of cowhide leather

A technology of bubbles and grains, which is applied in the formation of cowhide bubbles and grains, can solve the problems of reducing economic value and use effect, lowering the grade of leather products, and lacking the natural beauty of leather, so as to increase the soft effect and improve the concept of environmental protection , Reduce the effect of processing difficulty and cost

Active Publication Date: 2012-10-03
FENGAN LEATHER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The grains produced by the existing tanning methods are either full-grained and flat, with little covering effect; or embossed, which changes the natural effect of the leather grain in order to cover the wounds, and lacks the textu

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A method for forming a cowhide bubble grain surface, comprising the steps of:

[0024] 1) Put the blue skin in the drum, add 35°C water, oxalic acid, sulfonated ester compound (model: PF; manufacturer: Der Spiegel), rotate for 120 minutes, then drain, wash, and change the water; The ratio by weight of the blue bark, water, oxalic acid and sulfonated ester compound is 100:150:0.5:0.7.

[0025] 2) Add water at 30°C, aliphatic polymer aldehyde, rotate for 15-30 minutes, then neutralize with alkali for 40 minutes, add acrylic acid, grease and rotate for 30 minutes, then drain, wash and change water; the amount of water added is blue 1 time of the weight part of the skin; the addition of aliphatic polyaldehyde is 2% of the weight part of the blue skin; the addition of acrylic acid is 2% of the weight part of the blue skin; the addition of oil is 1% of the weight part of the blue skin (model: FA-78: Manufacturer: Honglinhua Company); the alkali uses NaHCO 3 , the addition i...

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PUM

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Abstract

The invention provides a method for forming pebble-grain surface of cowhide leather. The method comprises the following steps: 1) placing blue leather in a drum; adding water, oxalic acid and sulfated ester compounds; rotating the drum; and carrying out water discharge, water washing and water exchange; 2) adding water and aliphatic series polyaldehyde; rotating the drum; neutralizing with alkali; adding crylic acid and grease; rotating the drum; and carrying out water discharge, water washing and water exchange; 3) adding water, crylic acid, a synthetic tanning agent, dispersed tannin, a mimosa extract, a quebracho extract and a dye and rotating the drum; 4) dying through the core with the dye, then adding melamine, dicyandiamide, the mimosa extract, the quebracho extract, grease and a pebble forming agent; rotating the drum; and solidifying acid and exchanging water; and 5) adding water, crylic acid and grease and rotating the drum; solidifying acid; carrying out water discharge, water washing and water exchange; 6) adding water and oil-wax fatliquor, and 7) carrying out dry finishing. By the method, a pebble effect can be naturally exerted on the grain surface of the leather and the potential added value of the leather is expanded.

Description

technical field [0001] The invention relates to a method for forming a cowhide bubble grain surface. Background technique [0002] The grains produced by the existing tanning methods are either full-grained and flat, with little covering effect; or embossed, which changes the natural effect of the leather grain in order to cover the wounds, and lacks the texture of the leather. Natural and beautiful; either by grinding the leather to remove the epidermis, so that consumers cannot distinguish it as genuine leather, and reduce the grade of leather products, thereby reducing the economic value and use effect. content of the invention [0003] The object of the present invention is to provide a method for forming the bubble grain surface of cowhide. This method can naturally form the bubble effect on the leather grain surface without grinding or embossing, and maintains the full grain surface, but the bubble It also covers the disability and has a beautiful three-dimensional ...

Claims

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Application Information

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IPC IPC(8): C14C11/00C14C3/02C14C3/08
Inventor 王干伟杨宏建吴秋萍
Owner FENGAN LEATHER
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