Finishing method of non-permeable cattle corrected grain leather

A shaving leather and finishing technology, applied in the finishing field of impervious-dyed cattle shaving leather, can solve the problems of thick base, discontinuous film formation, thick fluff, etc., so as to achieve soft, plump, elastic, and disability coverage. Good performance and uniform surface gloss

Active Publication Date: 2013-01-09
JIHUA 3514 LEATHER & FOOTWARE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the prior art, when processing non-transparent and defective yellow cattle shaved leather, the crust leather is only surface dyed, and the leather heart is extremely light blue. After grinding, the surface of the crust leather is whitish, and the fibers are brittle and hard, and the fluff is thick. In the process of coating, there will be poor leveling of the coating,

Method used

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  • Finishing method of non-permeable cattle corrected grain leather

Examples

Experimental program
Comparison scheme
Effect test

Example

[0085] Example 1 Coating method for impervious dyeing of scalper trimmed leather

[0086] The method includes the following steps:

[0087] (1) Grinding surface

[0088] Put 240-mesh sandpaper into the leather sanding machine, grind the dry uncoated crust leather, remove the grain layer, make the length of the pile uniform, the depth of the defect becomes shallow, and form crust leather A;

[0089] (2) Dust removal

[0090] Use a dust collector to clean the surface of crust leather A to remove the ash on the surface of crust leather A to form polished crust leather B;

[0091] (3) Base

[0092] Dip the primer and brush evenly on the surface of the ground crust leather B while filling the fiber gaps of the crust leather so that the surface color is basically the same, forming the base crust leather C;

[0093] Wherein, the effective ingredients of the primer liquid include:

[0094] Pigment paste 50 g, water 500 g, penetrant 80 g, SB-900 (BRUK ACRYLIC SB-900, namely acrylic resin SB-900) 250...

Example Embodiment

[0147] Example 2-4

[0148] The coating method of impermeable scalper shaved leather used in Examples 2-4 is similar to the coating method of Example 1, except that the parameters used are different, as follows:

[0149]

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PUM

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Abstract

The invention provides a finishing method of non-permeable cattle corrected grain leather, which comprises the following steps: grinding the surface, removing dust, precoating, carrying out vacuum drying, carrying out secondary surface grinding, carrying out secondary dust removal, cleaning the surface, brushing a bottom coat, embossing, spraying a surface coat, spraying gloss oil, carrying out secondary embossing, ironing and the like. According to the corrected grain leather prepared by the finishing method provided by the invention, the grain has similar flatness and fineness to the whole grain as well as favorable defect covering power, and the leather body is flat, soft, full and resilient, and has the advantages of even surface gloss, uniform color and no greasiness; and the leather body also has the advantages of high smoothness, no crease, no loose grain, no crack grain, no decolorization and no slurry cracking. The invention solves the problems of diffused coating, slurry cracking, exposed ground, crude and creased grain and the like in the non-permeable defective cattle corrected grain leather, and is suitable for finishing corrected grain leather.

Description

technical field [0001] The invention belongs to a leather finishing method, in particular to a finishing method for imperviously dyed yellow cattle trimmed leather. Background technique [0002] As a natural material, leather has some congenital defects in its grain layer, and leather that has been trimmed can fully improve its utilization efficiency. For the crust leather that is dyed through the whole body, the processing will be easier because the color of the inside and outside of the pre-treatment is basically the same. In the prior art, when processing non-transparent and defective yellow cattle shaved leather, the crust leather is only surface dyed, and the leather heart is extremely light blue. After grinding, the surface of the crust leather is whitish, and the fibers are brittle and hard, and the fluff is thick. In the process of coating, there will be poor leveling of the coating, discontinuous film formation, often causing coating astigmatism, cracking, and bott...

Claims

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Application Information

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IPC IPC(8): C14C11/00C09D201/00C09D175/04C09D133/00C11D7/60
Inventor 郝燕玲肖金虎肖楠刘莹光
Owner JIHUA 3514 LEATHER & FOOTWARE
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