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Water-based mechanical microcellular foaming paint and application process thereof in synthetic leather

A micro-foaming and mechanical technology, applied in the direction of polyurea/polyurethane coatings, coatings, etc., can solve the problems of incomplete solvent recovery, pollution, secondary pollution, etc., and achieve significant economic and environmental benefits, breathability and moisture absorption Sexy and comfortable to wear

Inactive Publication Date: 2012-10-31
NANTONG HONGTU MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the solvent-based synthetic leather process will cause a lot of pollution, mainly the discharge of organic solvents. Although there are solvent recovery devices, the solvent recovery is not complete, and some solvents still cannot be recovered. The waste residue generated during the solvent recovery process will cause Secondary pollution, currently there is no way to recycle

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] A water-based mechanical micro-foaming coating, comprising the following components by mass percentage: 95% of water-based polyurethane resin, 0.01% of stearic acid amine, 1% of inorganic pigment, 3.99% of deionized water, and the water-based polyurethane resin is composed of aliphatic di It is prepared by reacting isocyanate and aromatic diisocyanate with polyol, and the molecular weight of the waterborne polyurethane resin is 20,000.

[0015] Stir and disperse the above-mentioned water-based polyurethane resin, amine stearate, and inorganic pigments, and apply the slurry on the release paper to prepare ultrafine fiber synthetic leather under the premise of uniform mechanical stirring, or apply the slurry on the ultrafine fiber synthetic leather. Coating on leather.

[0016] The quality index of the present embodiment microfiber synthetic leather is: water gas permeability (mg / 10cm 2 .24h): 540; air permeability: (ml / cm 2 .h): 650; water absorption (ml / 100g): 60.

Embodiment 2

[0018] A water-based mechanical micro-foaming coating, comprising the following components in mass percentage: 10% water-based polyurethane resin, 5% surfactant, 25% organic pigment, 10% silicon dioxide and 5% surface wetting agent, deionized water 45%, the water-based polyurethane resin is prepared by reacting aliphatic diisocyanate and aromatic diisocyanate with polyols, and the molecular weight of the water-based polyurethane resin is 500,000.

[0019] Stir and disperse the above-mentioned water-based polyurethane resin, surfactant, organic pigment, silicon dioxide and surface wetting agent, and apply the slurry on the release paper under the premise of mechanical uniform stirring to prepare superfine fiber synthetic leather, or put The size is applied to the microfiber synthetic leather as a coating.

[0020] The quality index of the present embodiment microfiber synthetic leather is: water gas permeability (mg / 10cm 2 .24h): 400; air permeability: (ml / cm 2 .h): 300; wate...

Embodiment 3

[0022] A water-based mechanical micro-foaming coating, comprising the following components in mass percentage: 40% water-based polyurethane resin, 2% stearic acid amine, 40% inorganic and organic pigments, 5% wax and silicon dioxide mixed filler, leveling agent and surface wetting agent 3%, deionized water 10%, the water-based polyurethane resin is prepared by reacting aliphatic diisocyanate and aromatic diisocyanate with polyol, and the molecular weight of the water-based polyurethane resin is 1,000,000.

[0023] Stir and disperse the above-mentioned water-based polyurethane resin, stearic acid amine, inorganic and organic pigments, wax agent and silica mixed filler, leveling agent and surface wetting agent, and apply the slurry on the separation surface under the premise of uniform mechanical stirring. Prepare superfine fiber synthetic leather on type paper, or apply slurry on microfiber synthetic leather for coating.

[0024] The quality index of the present embodiment micr...

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Abstract

The invention discloses a water-based mechanical microcellular foaming paint which comprises the following components in percentage by mass: 10-95% of water-based polyurethane resin, 0.01-5% of foaming agent, 1-40% of pigment, 0-10% of packing, 0-5% of assistant and the balance of deionized water. The invention also discloses an application process of the water-based mechanical microcellular foaming paint in synthetic leather, which comprises the following steps: well stirring and dispersing the water-based polyurethane resin, the packing, the assistant and the foaming agent, and spreading the slurry on release paper on the premise of mechanically and uniformly stirring to prepare superfine fiber synthetic leather or spreading the slurry on synthetic leather to serve as a coating. The water-based mechanical microcellular foaming paint provided by the invention has the advantages that production raw materials are environment-friendly materials which are harmless to the environment, no three wastes are generated in the slurry preparation and production processes, the requirement of the current production process is met, and the economic and environment benefits are remarkable.

Description

technical field [0001] The invention relates to a water-based foaming paint and its application process, in particular to a water-based mechanical micro-foaming paint and its application process in synthetic leather. Background technique [0002] At present, microfiber synthetic leather is prepared by solvent-based dry method and wet method polyurethane, which can fully meet the main performance requirements and industrial production of microfiber synthetic leather. However, the solvent-based synthetic leather process will cause a lot of pollution, mainly the discharge of organic solvents. Although there are solvent recovery devices, the solvent recovery is not complete, and some solvents still cannot be recovered. The waste residue generated during the solvent recovery process will cause Secondary pollution, there is currently no way to recycle. Contents of the invention [0003] Purpose of the invention: In order to solve the deficiencies of the prior art, the present i...

Claims

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Application Information

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IPC IPC(8): C09D175/04C09D7/12D06M15/564D06N3/14
Inventor 张晓镭高赪
Owner NANTONG HONGTU MATERIAL TECH
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