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A kind of subtractive multi-color rubbing agent and its preparation method and application

A color erasing agent and multi-layer technology, which is applied in the field of subtractive multi-color erasing agent and its preparation, can solve the problems of monotonous color and inability to apply artificial leather, etc., and achieve the effects of easy operation, rich varieties and styles, and easy judgment and control

Active Publication Date: 2021-07-20
清远市美佳乐环保新材股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Since this process is manual, it cannot be applied to a large-scale production line of artificial leather, and the color is relatively monotonous, most of which only have two different colors

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0071] A subtractive multiple color erasing agent, comprising water-washable resin A and alcohol-washable resin B at a ratio of 1:1, wherein, water-washable resin A includes the following components:

[0072] Propylene glycol methyl ether acetate 260g,

[0073] Polypropylene glycol 2000 100g,

[0074] Macrogol 1000 50g,

[0075] Isophorone diisocyanate 88.8g,

[0076] Dihydroxybutyric acid 10g,

[0077] Isophoronediamine 39.6g,

[0078] Monoethanolamine 1g,

[0079] Triethanolamine 10g,

[0080] Ethanol 260g;

[0081] The preparation method of this washing type resin A: add propylene glycol methyl ether acetate 260g, polypropylene glycol 2000 100g, polyethylene glycol 1000 50g, isophorone diisocyanate 88.8g and dihydroxybutyric acid 10g in reaction vessel, in 90 After reacting at ℃ for 3 hours, the content of NCO was 0.91mmol / g, and the prepolymer was obtained. The temperature was lowered to 50℃, and 39.6g of chain extender isophoronediamine was added dropwise until the...

Embodiment 2

[0092] A subtractive multiple color erasing agent, comprising water-washable resin A and alcohol-washable resin B at a ratio of 1:1.3, wherein water-washable resin A includes the following components:

[0093] Propylene glycol methyl ether acetate 230g,

[0094] Polypropylene glycol 2000 80g,

[0095] Macrogol 1000 40g,

[0096] Isophorone diisocyanate 82g,

[0097] Dihydroxybutyric acid 9g,

[0098] Isophoronediamine 36g,

[0099] Monoethanolamine 0.8g,

[0100] Triethanolamine 8g,

[0101] Ethanol 230g;

[0102] The preparation method of the water-washable resin A: add 230g of propylene glycol methyl ether acetate, 80g of polypropylene glycol 2000, 40g of polyethylene glycol 1000, 82g of isophorone diisocyanate and 9g of dihydroxybutyric acid in a reaction vessel, and heat at 90°C After 3 hours of reaction, the content of NCO was 0.8mmol / g, and the prepolymer was obtained. The temperature was lowered to 50°C, and 36g of the chain extender isophoronediamine was added d...

Embodiment 3

[0113] A subtractive multiple color erasing agent, comprising water-washable resin A and alcohol-washable resin B at a ratio of 1:0.8, wherein water-washable resin A includes the following components:

[0114] Propylene glycol methyl ether acetate 300g,

[0115] Polypropylene glycol 2000 120g,

[0116] Macrogol 1000 60g,

[0117] Isophorone diisocyanate 90g,

[0118] Dihydroxybutyric acid 12g,

[0119] Isophoronediamine 40g,

[0120] Monoethanolamine 1.2g,

[0121] Triethanolamine 11g,

[0122] Ethanol 300g;

[0123] The preparation method of the water-washable resin A: add 300 g of propylene glycol methyl ether acetate, 120 g of polypropylene glycol 2000, 60 g of polyethylene glycol 1000, 90 g of isophorone diisocyanate and 12 g of dihydroxybutyric acid in a reaction vessel, and heat the mixture at 90° C. After 3 hours of reaction, the content of NCO was 0.95mmol / g, and the prepolymer was obtained. The temperature was lowered to 50°C, and 40g of the chain extender isop...

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PUM

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Abstract

The invention provides a subtractive multiple color erasing agent, which comprises a water-washable resin A and an alcohol-washable resin B, and the ratio of the water-washable resin A to the alcohol-washable resin B is 1:0.5-5. In the subtractive color erasing agent, water-washable resin A and alcohol-washable resin B are applied to artificial leather in a ratio of 1:0.5-5, or any other ratio, for color-rubbing treatment. After the leather is washed by water, each layer is treated with water-washing resin A and alcohol-washing resin B respectively. Part of it is dissolved and wiped off to expose the bottom color of the lower layer, forming a color difference between the bottom and top of the groove, and achieving the effect of color rubbing or water washing. This color erasing agent adopts subtractive machine color erasing operation, which can realize the production of subtractive multi-color erasing artificial leather on a large scale, and provide new characteristic varieties for ordinary leather.

Description

technical field [0001] The invention relates to the technical field of artificial leather production, in particular to a subtractive multiple color erasing agent and its preparation method and application. Background technique [0002] Color wiper is a kind of paint commonly used in the paint industry, especially in the wood paint industry, to treat the substrate. In addition to protecting the substrate, it also has the function of giving the substrate a color and highlighting the texture of the substrate. , some products have a certain filling effect on the substrate. [0003] In the color rubbing technology, the color rubbing agent is used for the finishing of metal and wood, and its processing method is generally applied by hand, usually by adding layers of paint to form two different tones with a contrasting effect. [0004] Since this process is manual, it cannot be applied to a large-scale production line of artificial leather, and the color is relatively monotonous, ...

Claims

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Application Information

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IPC IPC(8): C09D175/08C09D7/20C08G18/66C08G18/48C08G18/34C08G18/32
CPCC08G18/3234C08G18/3271C08G18/3281C08G18/348C08G18/4804C08G18/4854C08G18/6688C08G18/6692C08L2205/025C09D175/08C09D7/20C08L75/08
Inventor 关仲翔梅子能姚文佩
Owner 清远市美佳乐环保新材股份有限公司
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