Preparation method of double-sided leather

A production method and technology of double-sided leather, applied in chemical instruments and methods, lamination auxiliary operations, lamination and other directions, can solve problems such as difficult to use requirements, and achieve the effect of a wide range of applications

Active Publication Date: 2014-01-15
KUNSHAN XIEFU NEW MATERIALS LTD BY SHARE LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The traditional artificial leather is composed of a base cloth layer, a wet-laid bass layer and a dry-laid veneer layer. This kind of artificial leather has only one front, and only the dry-laid veneer layer has a smooth front, and patterns can be set on it, and some of them are currently used The field requires double-sided use of artificial leather, such as double-sided clothing, etc. This kind of single-sided artificial leather is difficult to meet the needs of use

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0026] Embodiment: a kind of double-sided leather manufacturing method, concrete steps are as follows:

[0027] Step 1: Wet Mixing Ingredients:

[0028] a. Stir 5~10kg of dimethylformamide and 0.5~2kg of color paste at high speed for 80~100 minutes, then filter for use;

[0029] b. 100~120kg of dimethylformamide and 20~30kg of wood flour are mixed and stirred for 20~30 minutes, then fully swollen for 30~40 minutes, and then the mixture filtered in step a is added and stirred evenly for use;

[0030] c. Add 100kg of wet polyurethane resin to the mixture formed in step b, stir for 30-40 minutes, and degas for 40-50 minutes;

[0031] Step 2: Wet Bass Production:

[0032] Smear and scrape the slurry formed by defoaming in step 1 on the smooth surface of the warp-knitted suede (the other side of the suede is the rough surface), and then immerse it in dimethyl methacrylate with a concentration of 18-22% by mass. coagulate in an aqueous solution of methylformamide, then go through...

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PUM

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Abstract

The invention discloses a preparation method of double-sided leather. The preparation method comprises the following steps: uniformly stirring and filtering 5-10 parts of dimethylformamide and 0.5-2 parts of a color paste to obtain slurry; uniformly mixing and swelling 100-120 parts of dimethylformamide and 20-30 parts of wood flour, and then uniformly mixing with the slurry; adding 100 parts of polyurethane wet process resin to be uniformly mixed and defoamed; scraping the defoamed slurry on a glaze of suede, and then, solidifying, squeezing, water-washing and drying to obtain a wet base; uniformly mixing 100 parts of polyurethane dry process resin, 15-20 parts of dimethylformamide, 15-20 parts of butanone, 15-20 parts of methylbenzene, 0.5-1.0 parts of an assistant and 3-5 parts of a toner, scraping the mixed slurry on release paper, and then binding the wet base and separating from the release paper; uniformly mixing and filtering 100 parts of bonding glue, 20-30 parts of butanone, 10-14 parts of a bridging agent and 3-5 parts of an accelerant; and scraping the mixed and filtered slurry on the hair side of the suede, and binding a transfer membrane. According to the preparation method disclosed by the invention, the double-sided leather with a release paper pattern and a transfer membrane pattern is obtained.

Description

technical field [0001] The invention relates to a method for manufacturing artificial leather, in particular to a method for manufacturing double-sided leather. Background technique [0002] The traditional artificial leather is composed of a base fabric layer, a wet-laid bass layer and a dry-laid veneer layer. This kind of artificial leather has only one front side, and only the dry-laid veneer layer has a smooth front side, and patterns can be set on it. In the field, artificial leather needs to be used on both sides, such as wearing clothing on both sides. SUMMARY OF THE INVENTION [0003] In order to overcome the above-mentioned defects, the present invention provides a method for manufacturing double-sided leather, which has a simple process and produces a product with double-sided fronts with different effects and pattern characteristics. [0004] The technical scheme adopted by the present invention in order to solve the technical problem is: a method for making do...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B37/02B32B37/12B32B38/10D06N3/12B32B27/12D06M15/564D06M15/01D06M13/402C09J201/00C09J11/00
Inventor 张凤吴平倪爱平陈利安
Owner KUNSHAN XIEFU NEW MATERIALS LTD BY SHARE LTD
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