Shrinkage patent leather processing method

A processing method and a technology of shrinking grains, which are applied in the directions of leather drying, leather surface treatment, special leather manufacturing, etc., can solve the problems of affecting economic benefits, small size, unsightly appearance, etc., and achieve simple processing technology, uniform texture and bright color. Effect

Inactive Publication Date: 2016-04-20
河南博奥皮业有限公司
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AI Technical Summary

Problems solved by technology

The shrinkage process has very strict requirements on production technology and operation. For example, the process requires the gray skin to be fully dispersed, requires heavy liming and re-liming treatment, and the softening process is also heavier than the conventional one. These processes are actually operated. Without a quantitative standard, it often requires a lot of experiments and experience, which virtually increases the production cost
At the same time, the shrinkage process will affect the dyeing effect to a large extent before the dyeing process, such as dyeing uniformity, etc.
In addition, shrinkage leather shrinks a lot after tanning, and will be smaller than the original leather, which is not beautiful and affects economic benefits
[0006] In the prior art, there is also embossing of leather to obtain concave-convex three-dimensional patterns, but there are many technical difficulties in embossing. High, while the pattern retention time obtained by embossing is shorter

Method used

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  • Shrinkage patent leather processing method
  • Shrinkage patent leather processing method
  • Shrinkage patent leather processing method

Examples

Experimental program
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Effect test

Embodiment 1

[0023] The processing method of shrinkage patent leather comprises the following steps:

[0024] 1) Paint mix: Prepare paint sample 1 with reference to the component ratio in Table 1 # ~6 # , let stand for 0.5~1h;

[0025] 2) Drenching paint: Adjust the amount of drenching paint to 8-9g / square foot, and use a drenching machine to spray 1 # ~6 # The lacquer is poured on the pulp skin;

[0026] 3) Drying treatment: let the sheets stand still to dry the painted surface. First, let them stand for 8 to 10 hours in an environment with a relative humidity of 50 to 70% at 25 to 30°C, and then at 20 to 25°C with a relative humidity of Stand in the environment of 30-40% for 20-24 hours.

[0027] 4) Add 10-15% of the tare weight shrinkage agent into the drum for shrinkage and water washing treatment. The shrinkage time is 2-4 hours and the pH is 7-9;

[0028] 5) After drying, soften, stretch, and clean the surface, and put the leather into storage.

[0029] Table 1 The composition...

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PUM

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Abstract

The method for processing shrinkage paint leather belongs to the technical field of light industry, and comprises the following steps: 1) mixing paint; 2) taking pulp skin and spraying paint; 3) drying the paint surface; 4) putting the skin base obtained in step 3) into a Shrinkage treatment in water of the shrinkage agent; 5) washing with water; 6) dry finishing. The invention has the advantages of simple and reasonable process, low cost and good effect. It not only has the effect of uniform and natural lines produced by shrinkage, but also has the effect of bright color and luster achieved by patent leather.

Description

technical field [0001] The invention belongs to the technical field of light industry, in particular to a method for processing shrinkage paint leather. Background technique [0002] Patent leather, that is, leather with a bright and firm surface, has a bright and natural color, is waterproof, moisture-proof, not easy to deform, and is easy to clean and take care of. It is a material with strong surface effects and style characteristics. The traditional method of processing patent leather is to spray paint on materials such as genuine leather or PU leather to obtain a bright surface effect. [0003] Because the process of patent leather is relatively complicated and the requirements are very high, the price of patent leather products sold in the market is correspondingly higher. Wrinkled patent leather is currently widely used, and its advantages are: good hand feeling and soft leather body. In the tanning process of wrinkled patent leather, the leather body is softened fi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C14C11/00C14C13/00C14B1/58
Inventor 马慧勤申子广石建华马太伟张中华
Owner 河南博奥皮业有限公司
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