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A kind of manufacturing method of solvent-free synthetic leather based on uv curing technology

A technology of curing technology and manufacturing method, which is applied in the field of synthetic leather manufacturing to achieve the effects of simple production process, unique structure and low energy consumption

Active Publication Date: 2017-07-14
SICHUAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the application of UV curing technology in the manufacture of synthetic leather is still rarely reported

Method used

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  • A kind of manufacturing method of solvent-free synthetic leather based on uv curing technology
  • A kind of manufacturing method of solvent-free synthetic leather based on uv curing technology

Examples

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Effect test

Embodiment 1

[0037] Embodiment 1 The manufacture of solvent-free synthetic leather for sofa

[0038] (1) Preparation of UV curable slurry and water-based surface layer slurry (parts by weight)

[0039] a) Preparation of UV curing slurry: 100 parts of IPDI solvent-free UV curing polyurethane, 5 parts of photoinitiator 2-hydroxy-2-methyl-1-phenylacetone, 5 parts of color paste, 3 parts of light calcium carbonate 1 part, 1 part of montmorillonite, 5 parts of lignin powder, 3 parts of Span-80 surfactant and mix well;

[0040] b) Preparation of water-based surface layer slurry: 100 parts of polyurethane for aromatic water-based surface layer with a modulus of 60 Mpa and a solid content of 40%, 0.2 parts of DC-57 water-based leveling agent, 20 parts of water-based color paste, Foamex 840 0.1 part of water-based defoamer, 0.5 part of water-based polyurethane thickener, and 5 parts of Bayhydur 3100 cross-linking agent are mixed evenly to prepare a surface layer slurry with a viscosity of 3000 mPa...

Embodiment 2

[0047] Embodiment 2 Manufacture of solvent-free synthetic leather for clothing

[0048] (1) Preparation of UV curable slurry and water-based surface layer slurry (parts by weight)

[0049] a) Preparation of UV curing slurry: 100 parts of HDI solvent-free UV curing polyurethane, 2 parts of photoinitiator 1-hydroxy-1-cyclohexyl phenone, 3 parts of color paste, 5 parts of montmorillonite, Tween-60 0.5 part of type surfactant is mixed evenly;

[0050] b) Preparation of water-based surface layer slurry: 100 parts of polyurethane for aliphatic water-based surface layer with 50 Mpa and 30% solid content, 0.5 parts of Tego Glide410 water-based leveling agent, 20 parts of water-based color paste, BYK028 water-based defoaming agent 0.3 parts of water-based polyurethane and acrylic thickeners, 0.15 parts each of water-based polyurethane and acrylic thickeners, and 2 parts of XR-500 crosslinking agent are mixed evenly to prepare a surface layer slurry with a viscosity of 2500 mPa.s (temp...

Embodiment 3

[0057] Embodiment 3 Manufacture of solvent-free synthetic leather for automotive interior

[0058] (1) Preparation of UV curable slurry and water-based surface layer slurry (parts by weight)

[0059] a) Preparation of UV curable slurry: H 12 100 parts of MDI type solvent-free UV curing polyurethane, 3 parts of photoinitiator isopropyl thioxanthone, 4 parts of water-based color paste, 2 parts of fumed silica, 2 parts of carbon black, 4 parts of lignin powder, Pingpingjia OS Mix 1.5 parts of -15 surfactant evenly;

[0060] b) Preparation of water-based surface layer slurry: 100 parts of polyurethane for aliphatic water-based surface layer with a modulus of 55 Mpa and a solid content of 35%, 0.3 parts of Coatsil 7602 water-based leveling agent, 25 parts of water-based color paste, Defoamer A13 type Mix 0.2 parts of water-based defoamer, 0.4 parts of water-based acrylic thickener, and 4 parts of SAC-100 cross-linking agent to prepare a surface layer slurry with a viscosity of 27...

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Abstract

The invention discloses a method for manufacturing solvent-free synthetic leather based on UV curing technology. A semi-finished product is obtained; then water-based polyurethane is used as the surface layer resin, and the surface is veneered by a dry method (ie, transfer coating method) to obtain an environmentally friendly polyurethane synthetic leather product. The invention adopts UV curing technology to coat the polyurethane without any organic solvent on the base cloth and make synthetic leather products through UV curing, and has the characteristics of high curing efficiency, environmental friendliness, low energy consumption, etc.; solvent-free UV curing is adopted. Resin and water-based polyurethane replace traditional solvent-based polyurethane, eliminate organic solvent pollution from the source, save organic solvent resources, and the product does not contain VOC, which improves the ecological level and international market competitiveness of synthetic leather.

Description

technical field [0001] The invention belongs to the field of synthetic leather manufacturing, and in particular relates to a method for manufacturing solvent-free synthetic leather based on UV curing technology. Background technique [0002] my country is a big producer and consumer of synthetic leather. According to statistics, my country's artificial leather and synthetic leather production accounted for 76% of the world's total in 2014, and the production of artificial leather and synthetic leather by enterprises above designated size reached 3.1426 million tons, totaling 6.28 billion square meters. [0003] In recent years, with the continuous improvement of people's living standards, consumers' demand for high-performance, high-quality, and high-environmental ecological synthetic leather has shown a continuous upward trend. The annual domestic demand for high-end ecological synthetic leather has reached more than 200 million square meters . At the same time, European ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06N3/14
Inventor 范浩军章培昆鲍亮陈意颜俊田赛琦石碧
Owner SICHUAN UNIV
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