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Preparation method for artificial leather

A technology of artificial leather and dry method, which is applied in the direction of textiles and paper making, can solve the problems of shortening the service life of artificial leather, aging and damage of artificial leather surface, troubles in the use of artificial leather, etc., and achieve the effect of improving oil resistance and prolonging service life

Inactive Publication Date: 2017-04-26
青岛丰泽中兴科技服务有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] When oil is spilled on the surface covered with ordinary artificial leather, the oil will infiltrate inward, resulting in the formation of oil pollution marks on the surface of artificial leather, which are difficult to wipe clean, and some corrosive oil stains on the surface of artificial leather, if not cleaned in time, will cause artificial leather The surface is aged and damaged, which greatly shortens the service life of artificial leather and brings troubles to the use of artificial leather

Method used

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Examples

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Effect test

Embodiment 1

[0014] A kind of preparation method of artificial leather, concrete steps are as follows: Step 1: wet mixing batching: a. 5kg dimethylformamide, 2kg color paste, 10kg wood flour and 1kg surfactant are stirred at high speed for 60 minutes, then filtered and set aside ;

[0015] b. 80kg of wet-process polyurethane resin and 150kg of dimethylformamide were mixed and stirred for 20 minutes, then left to stand for 20 minutes, then the mixture was mixed with the mixture in step a and stirred for 2 in a negative pressure vacuumable reactor Hours and vacuum degassing and filtering static, defoaming stand-by, wherein the temperature in the negative pressure vacuumable reactor is controlled at 20 ° C;

[0016] Step 2: Wet process bass production: firstly select a suitable artificial leather base cloth, then impregnate the selected artificial leather base cloth in 12% dimethylformamide aqueous solution, and then pass through a hot roller at 60°C for ironing, After drying, apply and scra...

Embodiment 2

[0022] A kind of preparation method of artificial leather, it is characterized in that: concrete steps are as follows: Step 1: wet mixing batching: a. 10kg dimethylformamide, 10kg color paste, 30kg wood flour and 5kg surfactant are stirred at high speed for 90 minutes, Then filter for use;

[0023] b. Mix and stir 100kg wet-process polyurethane resin and 280kg dimethylformamide for 30 minutes, then let stand for 45 minutes, then mix the mixture with the mixture in step a and stir 2 in a negative pressure vacuumable reactor Hours and vacuum degassing and filtering static, defoaming stand-by, wherein the temperature in the negative pressure vacuumable reactor is controlled at 40 °C;

[0024] Step 2: Wet process bass production: firstly select a suitable artificial leather base cloth, then impregnate the selected artificial leather base cloth in 25% dimethylformamide aqueous solution, and then pass through a hot roller at 120°C for ironing, After drying, apply and scrape the mix...

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Abstract

The invention discloses a preparation method for artificial leather. The preparation method includes the steps of: a) uniformly mixing 5-10 parts of dimethylformamide, 2-10 parts of color paste, 10-30 parts of wood powder, and 1-5 parts of a surfactant; b) adding 80-100 parts of wet-method polyurethane resin and 150-280 parts of dimethylformamide, and uniformly mixing the components to prepare a wet-method material; c) impregnating a base cloth, ironing and drying the base cloth, coating the base cloth with the wet-method material, solidifying and the foaming wet-method material, and water-washing and drying the base cloth to prepare a wet-method base; d) uniformly mixing 80-100 parts of polyurethane surface layer resin, 40-70 parts of an organic solvent, 0.5-2 parts of an additive and 5-8 parts of environment-friendly color powder to prepare a dry-method material; e) uniformly mixing 80-100 parts of polyurethane binding resin, 20-60 parts of an organic solvent, 0.5-2 parts of an additive and 5-8 parts of environment-friendly color powder to prepare a binding material; f) coating release paper with the dry-method material and drying the dry-method material, coating the binding material, pasting the wet-method base, and drying and cooling the material and separating a semi-product from the release paper; and g) performing surface treatment to obtain a finish product. The preparation method effectively improves anti-oil-stain performance of the artificial leather.

Description

technical field [0001] The invention belongs to the field of artificial leather preparation, in particular to a preparation method of artificial leather. Background technique [0002] When oil is spilled on the surface covered with ordinary artificial leather, the oil will infiltrate inward, resulting in the formation of oil pollution marks on the surface of artificial leather, which are difficult to wipe clean, and some corrosive oil stains on the surface of artificial leather, if not cleaned in time, will cause artificial leather The surface is aged and damaged, which greatly shortens the service life of artificial leather and brings troubles to the use of artificial leather. Contents of the invention [0003] In order to overcome the above-mentioned defects, the present invention provides a method for preparing artificial leather. The artificial leather preparation method has a simple process, and the surface of the produced product can avoid oil stain penetration, whic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06N3/14D06N3/00
CPCD06N3/145D06N3/0061D06N3/0097D06N2209/128D06N2211/28
Inventor 王晓伟
Owner 青岛丰泽中兴科技服务有限公司
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