Formula and preparation method of water-based self-extinction polyurethane leather finishing agent

A polyurethane leather and self-dulling technology, which is applied in the preparation of water-based self-dulling polyurethane leather finishing agents, and in the field of water-based self-dulling polyurethane leather finishing agents, can solve the problems of unstable matting properties of product batches, insufficient matting degree, and brightening of matting coatings, etc. problem, to achieve the effect of good reproducibility in workshop production, adjustable extinction degree, and soft hand feeling

Active Publication Date: 2020-11-03
沾化神茂皮革助剂有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] For this reason, the object of the present invention is to provide a kind of water-based self-dulling polyurethane leather finishing agent formula and preparation method thereof that are soft, and do not return to brightness after hot pressing, aim to solve the existing water-based self-dulling polyurethane leather finishing agent that is used for leather. Insufficient degree, brightening of matte coating after hot pressing, hard hand feeling, unstable matting performance of product batches and poor repeatability, etc.

Method used

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  • Formula and preparation method of water-based self-extinction polyurethane leather finishing agent
  • Formula and preparation method of water-based self-extinction polyurethane leather finishing agent
  • Formula and preparation method of water-based self-extinction polyurethane leather finishing agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] The formula of water-based self-dulling polyurethane leather finishing agent comprises the following components in parts by weight:

[0047] Polytetrahydrofuran ether diol (M=250): 14.0 parts, polytetrahydrofuran ether diol (M=3000): 175 parts, isophorone diisocyanate (IPDI): 46.6 parts, hexamethylene diisocyanate (HDI) : 10 parts, U.S. Ventellus organic bismuth catalyst 83AC-83: 0.06893 parts, dimethylolbutyric acid (DMBA): 4.4 parts, 1,6-hexanediol (1.6-HDO): 0 parts, dimethylaminoethanol (DMEA): 2.6 parts, German BASF anti Oxygen agent Irganox 1010: 1.0 parts, German BASF UV absorber TINUVIN 329: 2.0 parts, methyl acetate: 70 parts, Eastman cellulose acetate butyrate CAB-381-0.1: 2.0 parts, deionized water: 620 parts, German Lauritan special reaction type hydroxy alcohol alkoxylate compound FT-625: 3.0 parts, ethylenediamine: 6.0 parts, Guangzhou Zungan Synthetic Materials Co., Ltd. modified silicone ZH-505: 3.0 parts, Hemingster Dechem RHEOLATE 175 hydrophobicall...

Embodiment 2

[0059] The formula of water-based self-dulling polyurethane leather finishing agent comprises the following components in parts by weight:

[0060] Polyoxypropylene diol (M=400): 13.0 parts, Polyoxypropylene diol (M=4000): 178.1 parts, Isophorone diisocyanate (IPDI): 44.0 parts, Hexamethylene diisocyanate (HDI) : 8.3 parts, American Ventrus organic bismuth catalyst 83AC-83: 0.1379 parts, dimethylol butyric acid (DMBA): 4.6 parts, 1.6-hexanediol (1.6-HDO): 2.0 parts, dimethylaminoethanol (DMEA): 2.8 parts, German BASF antioxidant Irganox 1010: 1.2 parts, German BASF UV absorber TINUVIN 329: 1.8 parts, methyl acetate: 80 parts, Eastman cellulose acetate butyrate CAB-381-0.1: 2.1 parts, deionized water: 637 parts, German labor Ritan special reaction type hydroxy alcohol alkoxy compound FT-625: 3.2 parts, hexamethylenediamine: 12.0 parts, modified silicone ZH-505 of Guangzhou Zungan Synthetic Materials Co., Ltd.: 3.2 parts, RHEOLATE175 of Hemingster Deqian Hydrophobically modif...

Embodiment 3

[0072] The formula of water-based self-dulling polyurethane leather finishing agent comprises the following components in parts by weight:

[0073] Polytetrahydrofuran ether diol (M=250): 12.0 parts, Jiangsu Yixing Xingning Chemical Polypropylene Carbonate Diol PPC-3A-1 (M=3000): 177.1 parts, isophorone diisocyanate (IPDI): 40.0 parts, hexamethylene diisocyanate (HDI): 15.0 parts, Belgian Umicore UMICORE organic bismuth catalyst Bi1010: 0.1838 parts, dimethylol butyric acid (DMBA): 4.9 parts, 1.6-hexanediol (1.6-HDO ): 1.0 parts, dimethylaminopropanol (AMP-95): 2.9 parts, German BASF antioxidant Irganox 1010: 1.4 parts, German BASF ultraviolet absorber TINUVIN 329: 1.6 parts, methyl acetate: 85 parts, Yishi Cellulose acetate butyrate CAB-381-0.1: 2.2 parts, deionized water: 643 parts, German Lauritan special reaction type hydroxyl alcohol alkoxylate compound FT-625: 3.4 parts, isophorone diamine: 15.0 parts Parts, modified silicone ZH-505 of Guangzhou Zungan Synthetic Materia...

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Abstract

The invention provides a water-based self-extinction polyurethane leather finishing agent formula and a preparation method thereof. The polyurethane leather finishing agent comprises the following components in parts by weight: 1.0 to 18.03 parts of polyol, 0.83 to 4.66 parts of diisocyanate, 0.006893 to 0.01838 part of a catalyst, 0.44 to 0.5 part of a hydrophilic chain extender, 0 to 0.2 part ofa small molecular chain extender, 0.25 to 0.29 part of a neutralizer, 0.1 to 0.2 part of an antioxidant, 0.1 to 0.2 part of an ultraviolet-resistant absorbent, 7.0 to 10.0 parts of a solvent, 0.2 to0.25 part of cellulose acetate butyrate, 62.0 to 64.9 parts of water, 0.3 to 0.4 part of foam-free penetrating agent, 0.55 to 1.6 parts of amine chain extender, 0.3 to 0.4 part of silicone emulsion and 1.4 to 2.5 parts of alkali swelling thickening agent. By means of the technical scheme, the prepared water-based self-extinction polyurethane leather finishing agent is stable in extinction and adjustable in extinction degree, the finished leather is soft in hand feeling, an extinction coating does not turn bright after hot pressing, the product placement performance is stable, and the workshopproduction reproducibility is good.

Description

technical field [0001] The invention relates to the technical field of leather finishing, in particular to a water-based self-dulling polyurethane leather finishing agent and a preparation method of the water-based self-dulling polyurethane leather finishing agent. Background technique [0002] In leather products, advocating natural style and pursuing genuine leather touch has become a trend. Matte and matte leather surfaces have a softer, natural and elegant appearance, and are increasingly favored and sought after by consumers. [0003] Because the traditional matting finishing agent achieves the matting purpose by adding micronized wax and inorganic silica matting powder, there are the following technical defects: there is a lot of dust pollution in the production process, the stability of the product is poor, and it is easy to delaminate and precipitate; The phenomenon of "gray, white, not black" is easy to appear; the brittleness of the coating increases, and it is eas...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G18/75C08G18/73C08G18/66C08G18/48C08G18/32C08G18/34C08G18/44C08G18/12D06N3/14
CPCC08G18/755C08G18/73C08G18/6674C08G18/664C08G18/4854C08G18/4825C08G18/44C08G18/3206C08G18/12C08G18/0823D06N3/148D06N3/146D06N3/0061D06N2211/28D06N2209/0846C08G18/348C08G18/3228C08G18/3234C08G18/3212
Inventor 刘杰华李学峰张士强刘明超张世刚
Owner 沾化神茂皮革助剂有限公司
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