Preparation method of waterborne polyurethane synthetic leather Bayse and applications thereof

A water-based polyurethane and synthetic leather technology, applied in polyurea/polyurethane adhesives, chemical instruments and methods, synthetic resin layered products, etc., can solve the problems of product performance degradation, low production efficiency, cumbersome operation, etc., and achieve speed Uniformity, low cost, good hand feeling effect

Active Publication Date: 2014-12-17
浙江昶丰新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] One of the technical problems to be solved by the present invention is to overcome the defects of cumbersome operation, large pollution and difficult drying in the preparation process of the existing water-based polyurethane synthetic leather, and provide a nitrate impregnating solution once impregnating formula and process, without pollution, Low liquid retention rate after impregnation, easy to dry
[0006] The second technical problem to be solved by the present invention is to overcome the defects that the existing water-based polyurethane dry-process veneer synthetic leather and its preparation method lead to product performance degradation and low production efficiency, and provide a synthetic leather based on the above-mentioned water-based polyurethane bass. Leather products, the preparation method is efficient, and the resulting product has good properties

Method used

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  • Preparation method of waterborne polyurethane synthetic leather Bayse and applications thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A kind of preparation method of aqueous polyurethane synthetic leather bass, required material and reagent are as follows:

[0031]Base fabric: Greer 0.65mm yellow twill fabric, impregnating liquid: magnesium nitrate aqueous solution, water-based polyurethane resin: Ketian 731, foaming agent: Buset STA, foam stabilizer: Buset SR, foam stabilizer: Zhongbao ZBH-207, thickener: Ketian ZZ18, water-based color paste: Shenlan Technology 519, crosslinking agent Ketian ZQ10, filler: Gree T03.

[0032] Its preparation method comprises the following steps,

[0033] (1) Prepare the base cloth;

[0034] (2) Impregnation of the base cloth: in parts by weight, the impregnation formula is 100 parts of water and 5 parts of salt, and the liquid carrying rate of the base cloth after impregnation is about 20%;

[0035] (3) After the base fabric is impregnated, it is heated and ironed by six rollers, calendered and dried successively; among them, the temperature of heated and ironed by s...

Embodiment 2

[0044] A kind of preparation method of aqueous polyurethane synthetic leather bass, required material and reagent are as follows:

[0045] Base fabric: Greer 0.55mm blue gray fleece cloth, impregnating liquid: sodium nitrate aqueous solution, water-based polyurethane resin: Ketian 735, foaming agent: Buset STA, foam stabilizer: Buset SR, foam stabilizer: Zhongbao ZBH-207, thickener: Ketian ZZ18, water-based color paste: Deep Blue Technology 519, crosslinking agent Ketian ZQ10, filler: Shengdeli F11.

[0046] Its preparation method comprises the following steps,

[0047] (1) Prepare the base cloth;

[0048] (2) Impregnation of the base cloth: in parts by weight, the impregnation formula is 100 parts of water and 2 parts of salt, and the liquid carrying rate of the base cloth after impregnation is 12%;

[0049] (3) After the base fabric is impregnated, it is heated and ironed by six rollers, calendered and dried successively; among them, the temperature of heated and ironed by...

Embodiment 3

[0057] A kind of preparation method of aqueous polyurethane synthetic leather bass, required material and reagent are as follows:

[0058] Base fabric: Greer 50D32 needle double-sided fabric, impregnating liquid: calcium nitrate aqueous solution, water-based polyurethane resin: Ketian 736, foaming agent: Buset STA, foam stabilizer: Buset SR, foam stabilizer: medium Bao ZBH-207, thickener: Ketian ZZ18, water-based color paste: Deep Blue Technology 519, crosslinking agent Ketian ZQ10, filler: Shengdeli F11.

[0059] Its preparation method comprises the following steps,

[0060] (1) Prepare the base cloth;

[0061] (2) Impregnation of the base cloth: in parts by weight, the impregnation formula is 100 parts of water and 8 parts of salt, and the liquid carrying rate of the base cloth after impregnation is 26%;

[0062] (3) After the base fabric is impregnated, it is heated and ironed by six rollers, calendered and dried successively; among them, the temperature of heated and iro...

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Abstract

The invention discloses a preparation method of waterborne polyurethane synthetic leather Bayse and applications of the waterborne polyurethane synthetic leather Bayse, belonging to the technical fields of the synthetic leather and the preparation method. The preparation method comprises the following steps: (1) preparing a bottom cloth; (2) impregnating the bottom cloth, wherein, the impregnation prescription contains the following components in parts by weight: 100 parts of water and 1-10 parts of metal nitrade, and the liquid rate of the impregnated bottom cloth is 10-30%; (3) heating, ironing, pressing, polishing and baking the bottom cloth after impregnating; (4) coating a waterborne polyurethane foaming layer on the bottom cloth after baking; (5) obtaining the synthetic leather Bayse after common baking, pressing and polishing. According to the preparation method, the defects of fussy operation, heavy pollution and drying difficulty in the existing preparation process of the waterborne polyurethane synthetic leather Bayse are overcome; one-time impregnation prescription and process, which are free of pollution, low in liquid rate after impregnation, and easy to bake are provided; meanwhile, a synthetic leather product taking the waterborne polyurethane synthetic leather Bayse as a base cloth is also provided; the preparation method is high in efficiency, and the obtained product is good in performance.

Description

technical field [0001] The invention relates to a method for preparing a water-based polyurethane synthetic leather base, and belongs to the technical field of synthetic leather and its preparation method. Background technique [0002] With the improvement of the breadth and depth of the application of artificial leather, the demand for artificial leather in the world has grown at an average annual rate of 7%. In addition, in recent years, the center of the world's artificial leather industry has moved to China, which has prompted my country's artificial leather industry to increase its annual average production rate by more than 10%. However, the pollution of artificial leather has also received attention from all walks of life, and the development of artificial leather industry in the direction of health and environmental protection is the general trend. How to develop and adopt various new materials and processes, especially water-based materials and processes, to meet en...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06N3/12B32B27/06B32B37/02B32B38/00B32B38/16C08L75/04C09J175/04D06M15/564
Inventor 邵晨旭
Owner 浙江昶丰新材料有限公司
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