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Method for manufacturing dyed leather based on aqueous resin and dyed leather

A manufacturing method and technology for dyeing leather, which is applied in dyeing methods, chemical instruments and methods, textiles and papermaking, etc., can solve the problems that cannot meet the requirements of ecological synthetic leather, etc., and achieve the goal of eliminating fire hazards, clear layering, and adding new varieties Effect

Active Publication Date: 2014-04-02
浙江德美博士达高分子材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the traditional solvent resin-based synthetic leather manufacturing technology is unable to meet the requirements of ecological synthetic leather

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Embodiment 1: the manufacture of dyed garment leather

[0028] (1) Preparation of water-based polyurethane veneer paste and three-plate surface paste:

[0029] (a) Preparation of water-based polyurethane facing layer slurry

[0030] Mix the water-based anionic surface layer with a modulus of about 40Mpa with 100 parts of polyurethane, 0.2 parts of water-based silicone leveling agent, 0.1 part of water-based silicone defoamer, and 0.3 parts of water-based polyurethane thickener, and the viscosity is 2500 mPa .s or so (temperature 25 ℃, the same below) veneer paste;

[0031] (b) Preparation of slurry at the third version table

[0032] Mix 100 parts of water-based cationic matting polyurethane with a modulus of 40Mpa, 0.2 parts of water-based polyurethane thickener, and 0.2 parts of water-based silicone leveling agent to prepare a three-plate surface slurry with a viscosity of 800-1000 mPa.s;

[0033] (2) Manufacture of dyed leather: adopt the transfer coating process,...

Embodiment 2

[0040] Embodiment 2: the manufacture of dyed sofa leather

[0041] (1) Preparation of water-based polyurethane veneer paste and three-plate surface paste:

[0042] (a) Preparation of water-based polyurethane facing layer slurry

[0043] Mix the water-based anionic surface layer with a modulus of about 60Mpa with 100 parts of polyurethane, 0.3 parts of water-based silicone leveling agent, 0.2 parts of water-based silicone defoamer, and 0.3 parts of water-based polyurethane thickener, and the viscosity is 3000 mPa .s or so (temperature 25 ℃, the same below) veneer paste;

[0044] (b) Preparation of slurry at the third version table

[0045] Mix 100 parts of water-based cationic matting polyurethane with a modulus of 50Mpa, 0.2 parts of water-based polyurethane thickener, and 0.2 parts of water-based silicone leveling agent to prepare a three-plate surface slurry with a viscosity of 800-1000 mPa.s;

[0046] (2) Manufacture of dyed leather: adopt the transfer coating process, t...

Embodiment 3

[0053] Example 3: Manufacture of Dyed Boot Leather

[0054] (1) Preparation of water-based polyurethane veneer paste and three-plate surface paste:

[0055] (a) Preparation of water-based polyurethane facing layer slurry

[0056] Mix the water-based anionic surface layer with a modulus of about 45Mpa with 100 parts of polyurethane, 0.4 parts of water-based silicone leveling agent, 0.3 parts of water-based silicone defoamer, and 0.3 parts of water-based polyurethane thickener, and the viscosity is 2600 mPa .s or so (temperature 25 ℃, the same below) veneer paste;

[0057] (b) Preparation of slurry at the third version table

[0058] Mix 100 parts of water-based cationic matting polyurethane with a modulus of 50Mpa, 0.2 parts of water-based polyurethane thickener, and 0.2 parts of water-based silicone leveling agent to prepare a three-plate surface slurry with a viscosity of 800 mPa.s;

[0059] (2) Manufacture of dyed leather: adopt the transfer coating process, that is, appl...

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Abstract

The invention discloses a method for manufacturing dyed leather based on aqueous resin, which comprises the following steps: S1) preparing an aqueous polyurethane surface layer slurry (100 parts of aqueous polyurethane, 0.2-0.5 parts of aqueous organosilicon levelling agents and 0.1-0.3 parts of aqueous organosilicon antifoaming agents); S2) preparing three editions of surface treatment slurry (100 parts of aqueous delustring polyurethane, 0.2-0.5 parts of aqueous polyurethane thickening agents and 0.2-0.5 parts of aqueous organosilicon levelling agents); S3) preparing the dyed leather using a veneering technology: coating the surface layer slurry on a piece of release paper, and veneering the paper and bass from wet method, and separating paper and leather, and embossing according to conventional method; S4) carrying out three-edition surface treatment; S5) dyeing. The leather manufactured by the method has the advantages of soft handle, high color fastness, wear resistance and scratch resistance, and the invention also has good antibiosis and mildew resistance properties, and the performance is better than the industrial standard.

Description

technical field [0001] The invention relates to the field of environmentally friendly synthetic leather manufacturing, more specifically, relates to a method for manufacturing dyed leather based on water-based resin and the dyed leather. Background technique [0002] my country is the largest producer and consumer of synthetic leather in the world. Its production capacity and output account for 73% and 69% of the world respectively. In 2012, the production of artificial leather and synthetic leather by enterprises above designated size in my country reached 3.1426 million tons, totaling 6.28 billion square meters. [0003] In the traditional synthetic leather manufacturing process, it is necessary to add color paste, toner, organic dyes, metal complex dyes and other coloring substances to the coating slurry to give different colors to the finished leather, but the coloring of the coating feels hard. And once the coloring formula is determined, the coating presents a single c...

Claims

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Application Information

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IPC IPC(8): D06N3/14B32B27/40D06P1/41D06P1/39C08L75/04
Inventor 范浩军唐川杜鹏汪峰
Owner 浙江德美博士达高分子材料有限公司
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