Water-based synthetic leather, and production line and production method thereof

A production method and technology of synthetic leather, applied in chemical instruments and methods, layered products, textiles and papermaking, etc., can solve the problems of rough temperature control scheme, inaccurate temperature control, low drying efficiency, etc., to solve color difference, Avoid low drying efficiency and good drying effect

Inactive Publication Date: 2014-04-09
JIANGXI MINGCHUAN SCI & TECH IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the temperature control scheme provided by this patent is relatively rough, and the temperature of each part cannot be precisely controlled, and there is still the possibility of wrinkling, and the drying efficiency is also low

Method used

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  • Water-based synthetic leather, and production line and production method thereof
  • Water-based synthetic leather, and production line and production method thereof
  • Water-based synthetic leather, and production line and production method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] S11: configuring surface layer slurry. In terms of weight percentage, the surface layer slurry is composed of 35 parts of water-based polyurethane resin (surface layer water-based polyurethane resin, model: MCKT-725A), 65 parts of water, 0.8 parts of thickener, 0.3 parts of defoamer, 0.3 parts of fluid It is composed of leveling agent, 1 part of external linking agent and 3.2 parts of water-based color paste. This component is thickened and compounded under the stirring of the disperser, and the viscosity is adjusted to 2000cps / 20°C to become the surface layer slurry for synthetic leather.

[0049] S12: coating the surface layer slurry on a release paper to form a water-based resin surface layer, and drying the water-based resin surface layer. The release paper uses DE90 release paper produced by Warren Company of the United States, the coating thickness is 5 wires, and the transmission speed of the actuator in the first oven is 10m / min.

[0050] S13: configuring middl...

Embodiment 2

[0058] S21: configuring surface layer slurry. In terms of weight percentage, the surface layer slurry is composed of 30 parts of water-based polyurethane resin (surface layer water-based polyurethane resin, model: MCKT-725A), 65 parts of water, 1 part of thickener, 0.3 part of defoamer, 0.5 part of fluid It is composed of leveling agent, 1 part of external linking agent and 3.2 parts of water-based color paste. This component is thickened and compounded under the stirring of the disperser, and the viscosity is adjusted to 2100cps / 20°C to become the surface layer slurry for synthetic leather.

[0059] S22: coating the surface layer slurry on a release paper to form a water-based resin surface layer, and drying the water-based resin surface layer. The release paper uses DE90 release paper produced by Warren Company of the United States, the coating thickness is 5 wires, and the transmission speed of the actuator in the first oven is 12m / min.

[0060] S23: configuring middle lay...

Embodiment 3

[0068] S31: configuring surface layer slurry. In terms of weight percentage, the surface layer slurry consists of 40 parts of water-based polyurethane resin (surface layer water-based polyurethane resin, model: MCKT-725A), 60 parts of water, 0.5 part of thickener, 0.3 part of defoamer, 0.3 part of fluid It is composed of leveling agent, 1 part of external linking agent and 3.2 parts of water-based color paste. This component is thickened and compounded under the stirring of a disperser, and the viscosity is adjusted to 1980cps / 20°C to become the surface layer slurry for synthetic leather.

[0069] S32: coating the surface layer slurry on a release paper to form a water-based resin surface layer, and drying the water-based resin surface layer. The release paper uses DE90 release paper produced by Warren Company of the United States, the coating thickness is 5 wires, and the transmission speed of the actuator in the first oven is 10m / min.

[0070] S33: configuring middle layer ...

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Abstract

The invention provides a water-based synthetic leather and a production line thereof. A four-coating four-drying process is adopted, and an intermediate water-based resin coating layer and a foaming water-based resin coating layer are respectively formed. The production line has an integrated production process, has the advantages of relative stability and higher efficiency, and also avoids the problems of low drying efficiency and easy corrugation brought by an excessively thick surface layer. Through partitioning drying boxes and controlling the temperatures of different isothermal regions, drying is uniform, smooth and steady, and the drying effect is good. The synthetic leather is of a five-layer structure, effectively solves the color shading problem brought by large-pattern embossing. At the same time, the invention also provides a production method of the water-based synthetic leather.

Description

technical field [0001] The invention relates to a dry production technology of water-based synthetic leather, in particular to a production line and a production method of water-based synthetic leather. Background technique [0002] Water-based synthetic leather generally has a four-layer structure of surface layer-foaming layer-adhesive layer-base fabric, using a three-coating and three-baking production process. CN201010245381.1 discloses a production method of water-based synthetic leather, which can be summarized as three-coating and four-baking, including coating the slurry containing the surface layer water-based polyurethane resin on the surface of the release paper and drying to form the surface layer; The foam machine mixes the slurry containing foamable water-based polyurethane resin with air to foam, and then coats the foamed slurry on the surface of the surface layer and dries to form a middle foam layer; Adhesives are used to attach the surface of the foam laye...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06N3/14B32B37/02B32B37/15B32B37/12B32B38/16
Inventor 汪国水刘刚王振孟
Owner JIANGXI MINGCHUAN SCI & TECH IND
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