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Method for treating collagen fiber non-woven substrate surface

A substrate surface, collagen fiber technology, applied in the direction of fabric surface trimming, fabric rubbing/softening, textiles and papermaking, etc. problem, to achieve the effect of low cost and simple process

Active Publication Date: 2013-12-04
山东德信皮业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Existing imitation leather materials include PVC artificial leather, PU artificial leather substrate, etc. The surface is usually treated by transfer film, which has high production efficiency and good surface uniformity, but the air permeability and moisture absorption are not as good as natural leather, and the appearance and feel of the finished product are inferior. Plastic feeling, no natural leather style, easy to peel off between the surface coating layer and the substrate
The environmentally friendly collagen fiber base material made of non-woven leather collagen fibers, if the surface is made of release paper medium transfer film, the finished product will lack the effect of genuine leather

Method used

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  • Method for treating collagen fiber non-woven substrate surface
  • Method for treating collagen fiber non-woven substrate surface

Examples

Experimental program
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Effect test

Embodiment 1

[0016] Follow the steps below to surface-treat the collagen fiber nonwoven substrate:

[0017] (1) First, use 180# sandpaper for rough grinding once, and then use 300# sandpaper for fine grinding once, until the surface fluff is soft and fine, and the hand is not rough.

[0018] (2) Grain-like surface layer: Spread the raw material of the grain-like surface layer evenly on the surface of the substrate with a roller coater, apply 3.8g / sf with a scraping roller for the first time, and then roll for a second time after drying. , apply 15g / sf with a No. 17 roller. The raw materials of the grain-like layer are mixed by the following raw materials in mass ratio: leather resin: pigment paste = 250:30.

[0019] (3) Water spray: lightly spray the mixture of nitrocellulose and water on the surface, and the mass ratio of nitrocellulose and water is 60:100.

[0020] (4) Making leather texture: using a roller press under the conditions of temperature 130°C, pressure 130Mpa and 4.5m / min. ...

Embodiment 2

[0027] (1) First, use 180# sandpaper for rough grinding once, and then use 300# sandpaper for fine grinding once, until the surface fluff is soft and fine, and the hand is not rough.

[0028] (2) Grain-like surface layer: Spread the raw material of the grain-like surface layer evenly on the surface of the substrate with a roller coater, apply 4.8g / sf with a scraping roller for the first time, and then roll for a second time after drying. , apply 16g / sf with a No. 17 roller. The raw materials of the grain-like layer are mixed with the following raw materials in mass ratio: leather resin: pigment paste: water = 200:20:5.

[0029] (3) Water spray: lightly spray the mixture of nitrocellulose and water on the surface, and the mass ratio of nitrocellulose and water is 100:150.

[0030] (4) Making leather texture: using a roller press under the conditions of a temperature of 140° C., a pressure of 150 Mpa and a pressure of 5.0 m / min. The pattern is required to be clear, and the pat...

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Abstract

The invention belongs to the technical field of leather surface treatment, and particularly relates to a method for treating a collagen fiber non-woven substrate surface. The method is characterized by comprising the following steps of: first, leveling fibers on the collagen fiber non-woven substrate surface with uniform thickness; then, forming a layer of grain-like surface; later on, performing water and light spraying, leather grain forming and scratchability and flatness treatment on the grain-like surface in turn; and finally, performing surface color treatment and surface emphasis treatment on the grain-like surface by adopting a conventional process. The method has the advantages that release paper serving as a medium for forming a surface on the substrate surface conventionally is avoided; the product has the effect close to that of the first layer of the leather; the appearance and the characteristics of natural leather are shown; the process is simple; the cost is low; no matter the substrate or any used material of the obtained product meets the environment-friendly requirement on export and domestic markets; the obtained product meets the leather physical property indexes such as dry resistance, abrasion resistance, normal-temperature bending resistance, low-temperature bending resistance; and the obtained product meets the wet friction detection standard for 200 times and the dry-wet friction resistance reaches the level 4 to 5.

Description

technical field [0001] The invention belongs to the technical field of leather surface treatment, and in particular relates to a surface treatment method for a collagen fiber non-woven base material. Background technique [0002] Existing artificial leather materials include PVC artificial leather, PU artificial leather base material, etc. The surface is usually treated by film-moving, which has high production efficiency and good surface uniformity, but its air permeability and moisture absorption are not as good as natural leather. Plastic feeling, no natural leather style, easy peeling between the surface coating layer and the substrate. The environmentally friendly collagen fiber base material non-woven from leather collagen fiber, if its surface is made of a release paper medium, the finished product lacks the effect of genuine leather. SUMMARY OF THE INVENTION [0003] The purpose of the present invention is to provide a method for surface treatment of a collagen fi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06N3/00D06C23/04D06C11/00D06C19/00D06C27/00
Inventor 董怀志岳明明李闻欣
Owner 山东德信皮业有限公司
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