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Soft sheepskin-like polyurethane resin, preparation method and method for preparing sheepskin-like synthetic leather with the soft sheepskin-like polyurethane resin

A polyurethane resin and synthetic leather technology, applied in polyurea/polyurethane coatings, applications, textiles and papermaking, etc., can solve the problems of not full texture, not light and soft synthetic leather, poor weather resistance and wear resistance, etc. The effect of cracking strength, reducing surface tension and increasing strength

Active Publication Date: 2018-09-11
SHANGHAI HUIDE TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current soft imitation sheepskin polyurethane synthetic leather has the disadvantages that the synthetic leather is not light and soft, the handle is not delicate and elastic, the tear strength is not high, the weather resistance and wear resistance are not good, the surface color is not soft and natural, the lines are not full, and the three-dimensional effect is not strong.

Method used

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  • Soft sheepskin-like polyurethane resin, preparation method and method for preparing sheepskin-like synthetic leather with the soft sheepskin-like polyurethane resin
  • Soft sheepskin-like polyurethane resin, preparation method and method for preparing sheepskin-like synthetic leather with the soft sheepskin-like polyurethane resin
  • Soft sheepskin-like polyurethane resin, preparation method and method for preparing sheepskin-like synthetic leather with the soft sheepskin-like polyurethane resin

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] 1. Soft imitation sheepskin polyurethane resin formula

[0048]

[0049] Note: The solid content of the wet-process polyurethane resin described in the formula is 29% to 31%, and the 100% modulus of the polyurethane resin is 5 to 15kg / m 2 .

[0050] 2. Preparation method of soft sheepskin-like polyurethane resin

[0051] 1) Mix and stir 50kg of N,N-dimethylformamide and 2.3kg of pulp powder for 10 minutes, add 1.0kg of polyoxypropylene triol, 0.5kg of dioctyl maleate sulfonate, modified polysilicon Oxane 0.3kg, mixed and stirred for 15 minutes.

[0052] 2) Add 44 kg of wet-process polyurethane resin and 0.9 kg of oily colorant to the mixture obtained in step 1), fully stir for 40 minutes, and defoam for 30 minutes at a stirring speed of 80 rpm to obtain soft sheepskin-like polyurethane resin.

[0053] 4. the method for the imitation sheepskin synthetic leather that main raw material is made with above-mentioned soft imitation sheepskin polyurethane resin, comprises ...

Embodiment 2

[0066] 1. Soft imitation sheepskin polyurethane resin formula

[0067]

[0068] Note: The solid content of the wet-process polyurethane resin described in the formula is 29% to 31%, and the 100% modulus of the polyurethane resin is 5 to 15kg / m 2 .

[0069] 2. Preparation method

[0070] 1) Mix and stir 52kg of N,N-dimethylformamide and 4.0kg of pulp powder for 11 minutes, add 0.8kg of polyoxypropylene triol, 0.2kg of dioctyl maleate sulfonate, modified polysilicon Oxane 0.2kg, mixed and stirred for 15 minutes;

[0071] 2) Add 41kg of wet-process polyurethane resin and 1.8kg of oily colorant to the mixture obtained in step 1), fully stir for 35 minutes, and defoam for 30 minutes at a stirring speed of 80 rpm to obtain soft sheepskin-like polyurethane resin.

[0072] 3. the method for the imitation sheepskin synthetic leather that main raw material is made with above-mentioned soft imitation sheepskin polyurethane resin, comprises the following steps:

[0073] 1) Wet bass...

Embodiment 3

[0085] 1. Soft imitation sheepskin polyurethane resin formula

[0086]

[0087] Note: The solid content of the wet-process polyurethane resin described in the formula is 29% to 31%, and the 100% modulus of the polyurethane resin is 5 to 15kg / m 2 .

[0088] 2. Preparation method

[0089] 1) Mix and stir 54kg of N,N-dimethylformamide and 4.6kg of pulp powder for 12 minutes, add 0.85kg of polyoxypropylene triol, 0.8kg of dioctyl maleate sodium sulfonate, modified polysilicon Oxane 0.15kg, mixed and stirred for 10 minutes;

[0090] 2) Add 38kg of wet-process polyurethane resin and 1.6kg of oily colorant to the mixture obtained in step 1), fully stir for 30 minutes, defoam for 30 minutes, and the stirring speed is 80 rpm to obtain soft sheepskin-like polyurethane resin.

[0091] 3. the method for the imitation sheepskin synthetic leather that main raw material is made with above-mentioned soft imitation sheepskin polyurethane resin, comprises the following steps:

[0092] 1)...

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Abstract

The invention relates to soft sheepskin-imitating polyurethane resin which includes the following components: wet-method polyurethane resin, N,N-dimethylformamide, paper pulp powder, a hand feeling agent, a permeation agent, an anti-crimping agent and an oily color material. The invention also relates to a method of producing sheepskin-imitating artificial leather with the soft sheepskin-imitating polyurethane resin, wherein the method includes the following steps: 1) impregnating a base cloth in a soft sheepskin-imitating polyurethane resin mixture liquid; 2) regulating sizing quantity through extrusion, and performing solidification, water washing, drying and polishing to prepare wet-method base; and 3) performing veneering and vacuum grain suction to the wet-method base to prepare the sheepskin-imitating artificial leather. The sheepskin-imitating artificial leather has a soft and light feel, has fine and elastic hand feeling, is high in tear strength and good in weather and wear resistance, has a soft and natural surface color, has full grains and has strong stereoscopic sense.

Description

technical field [0001] The invention relates to a soft sheepskin imitation polyurethane resin, a preparation method and a method for preparing sheepskin synthetic leather with the soft sheepskin imitation polyurethane resin. Background technique [0002] With the development of high technology at home and abroad and the application of advanced industrial equipment, the technical level and product grade of my country's synthetic leather industry have made a qualitative leap. The current polyurethane synthetic leather has been rapidly developed in terms of product quality, variety, and output, and its performance is getting closer and closer to natural leather, and some aspects of its performance even exceed natural leather. Such as chemical corrosion resistance, aging resistance, friction resistance, tear resistance, mildew resistance and antibacterial properties, moisture absorption and air permeability, etc. are all superior to genuine leather, reaching a level where perfor...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06N3/14D06N3/00C09D175/04C09D7/63C09D7/65
CPCC09D175/04D06N3/0009D06N3/0034D06N3/0036D06N3/004D06N3/0097D06N3/142D06N2209/103D06N2209/105D06N2209/1692D06N2211/10D06N2211/103D06N2211/106C08L83/04
Inventor 钱建中钱洪祥邹佳娜邹文革蒋丽文郝勇
Owner SHANGHAI HUIDE TECH CO LTD
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