Production technology of pattern leather

A production process and leather technology, applied in the field of pattern leather production technology, can solve the problems of increasing manpower, material resources, lengthy production process, long operation process, etc., and achieve the effects of reducing layer drop, simple process and convenient operation.

Active Publication Date: 2015-09-30
河南博奥皮业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The leather production process in the prior art is generally as follows: taking the base leather as the boundary, repairing - pressing plate - grinding - filling - vacuum - repairing - grinding - cleaning surface - sealing - ironing - oscillation - Re-cleaning - Finishing after measuring the leather (roller coating + ironing a total of 5 times) - Obtained after spraying paint; To achieve the desired effect, it is often necessary to roll coating, ironing, rolling coating, ironing, and repeating 5 times, which not only increases the labor force, but also requires more chemical materials

Method used

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  • Production technology of pattern leather

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Example 1 Pattern leather production process, including leather pretreatment process, finishing process and post-treatment process.

[0021] 1) The pre-treatment process is as follows: grind the obtained crust leather, clean the surface, shake, clean the surface again, seal the inside and measure the leather.

[0022] 2) The finishing process is as follows: the leather obtained after the leather pretreatment process is subjected to one finishing treatment.

[0023] 3) The post-treatment process is as follows: first apply a film to the leather after the finishing process, then spray glycol ether on the leather film surface, and finally obtain pattern leather through lacquering, in which the amount of glycol ether is 4-8 kg / thousand Ruler, the varnish is composed of the following raw materials in parts by weight: 30-50 parts of PU100, 40-60 parts of PU 909, 10-30 parts of n-butyl acetate, preferably 50 parts of PU100, 50 parts of PU 909, n-butyl acetate 20 servings.

Embodiment 2

[0024] Embodiment 2 comparative test

[0025] 2.1 Effect of different dosages of ethylene glycol ether on the bonding fastness of the paint film

[0026] Experimental method: Divide the skins from the same batch into 7 small samples, and then process them according to the process described in Example 1 to obtain samples. After standing the obtained samples for three days, draw 30 Table 1 shows the amount of ethylene glycol ether sprayed and the bonding fastness of the paint film corresponding to each group.

[0027] Bonding fastness: The bonding fastness of the paint film in the present invention is related to the number of sheets to be removed and the difficulty of removing. The more sheets are removed, the easier it is to remove, indicating that the bonding fastness of the paint film is better Difference.

[0028] It can be seen from Table 1 that when the amount of ethylene glycol ether is 0 (painting directly after the film is applied), the glossy film is easily removed f...

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Abstract

The invention discloses a production technology of pattern leather, and belongs to the technical field of leather production. The technology comprises the steps of performing a leather pretreatment process, performing an finishing process and performing a post treatment process, wherein in the step of performing the post treatment process, leather subjected to the finishing process is pasted with a film, then glycol ether (ECS) is sprayed to a film pasted surface of the leather, and finally the pattern leather is obtained by paint coating. The pattern leather produced by the production technology is consistent and uniform in color; various colored leather products can be presented by pasting the films, so that the requirements of a customer are met; in addition, the phenomena of layer falling of the film pasted leather after the paint coating can be reduced greatly only by adopting a glycol ether surface breaking method; the brightness maintaining valid time after paint film forming is long; and a color fresh preservation degree is high.

Description

technical field [0001] The invention belongs to the technical field of leather production, and in particular relates to a pattern leather production process. Background technique [0002] With the improvement of people's living standards and rich material life, people's requirements for leather fashion and the pursuit of leather products are becoming more and more prominent, not only in terms of color, color and leather, but also in terms of energy conservation and environmental protection. There are also higher requirements, and the current market demand for leather post-processing products such as leather printing is also increasing. [0003] Leather printing, as an important post-treatment process of leather diversification, is more and more popular. Leather transfer printing is a relatively high-end printing method at present. [0004] The leather production process in the prior art is generally as follows: taking the base leather as the boundary, repairing - pressing ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C14C11/00C09D175/04
CPCC09D175/04C14C11/00
Inventor 马慧勤申子广石建华申祥朱晓英张中华马太伟
Owner 河南博奥皮业有限公司
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