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Water-based finishing agent for leather as well as preparation method and roller coating process

A water-based coating and leather technology, applied in leather surface treatment, small raw hide/large raw hide/leather/fur treatment, small raw hide/large raw hide/leather skin/fur chemical treatment, etc., can solve the problem of insufficient flexibility and coating film hardness Good, high cost, insufficient heat resistance, etc., to achieve oil resistance and other chemical corrosion resistance, low cost, and improve the effect of adhesion

Inactive Publication Date: 2018-11-16
山东莱福特皮革制品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] Specifically, the technical problem to be solved by the present invention is to provide a water-based leather finishing agent to solve the problem of poor water resistance, insufficient heat resistance, poor flexibility and coating film hardness, and high cost of existing water-based polyurethane leather finishing agents. Problems that cannot be solved, and correspondingly provide a preparation method of a leather water-based finishing agent, and a roll coating process of a leather water-based finishing agent

Method used

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  • Water-based finishing agent for leather as well as preparation method and roller coating process
  • Water-based finishing agent for leather as well as preparation method and roller coating process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] A kind of leather water-based finishing agent, comprises A component and B component used in conjunction,

[0051] Component A is prepared from the following raw materials in parts by weight: 30 parts of cationic water-based polyurethane, 1 part of associative alkali-swellable thickener, 0.5 part of leveling agent BYK-333, and 70 parts of distilled water;

[0052] Component B is prepared from the following raw materials in parts by weight: 10 parts of polyethylene adipate diethylene glycol, 15 parts of polyoxypropylene glycol, 100 parts of isophorone diisocyanate, 0.01 part of dibutyltin dilaurate, 2 parts of 2,2-dimethylolpropionic acid, 0.1 part of cumene peroxide, 10 parts of acetone, 1 part of triethylamine, 1 part of ethylenediamine, 95 parts of distilled water, 15 parts of isobornyl acrylate, potassium sulfate 0.05 parts, 4 parts of associative alkali swelling thickener, 2 parts of leveling agent BYK-333, 4 parts of casein, 10 parts of pigment paste.

[0053] The...

Embodiment 2

[0068] A kind of leather water-based finishing agent, comprises A component and B component used in conjunction,

[0069] Component A is prepared from the following raw materials in parts by weight: 40 parts of cationic water-based polyurethane, 1.5 parts of cellulose ether, 1.2 parts of leveling agent BYK-348, and 80 parts of distilled water;

[0070] Component B is prepared from the following raw materials in parts by weight: 15 parts of neopentyl glycol polyadipate, 20 parts of polytetrahydrofuran diol, 15 parts of aliphatic hexamethylene diisocyanate, 0.3 parts of stannous octoate, 1,2-di 3 parts of sodium hydroxy-3-propanesulfonate, 0.3 parts of zinc oxide, 13 parts of butanone, 3 parts of triethylamine, 3 parts of hexamethylenediamine, 120 parts of distilled water, 20 parts of isoborneol methacrylate, 0.1 parts of sodium persulfate 6 parts, 6 parts of cellulose ether, 3 parts of leveling agent BYK-348, 6 parts of casein, 20 parts of pigment paste.

[0071] The preparati...

Embodiment 3

[0086] A kind of leather water-based finishing agent, comprises A component and B component used in conjunction,

[0087] Component A is prepared from the following raw materials in parts by weight: 50 parts of cationic water-based polyurethane, 1.5 parts of nonionic polyurethane thickener, 1.2 parts of leveling agent BYK-349, and 90 parts of distilled water;

[0088] Component B is prepared from the following raw materials in parts by weight: 20 parts of polyethylene adipate diethylene glycol, 25 parts of tetrahydrofuran-propylene oxide copolymerized glycol, 20 parts of aliphatic hexamethylene diisocyanate, 0.05 parts of stannous octoate, 5 parts of 2,2-dimethylolpropionic acid, 0.4 parts of zinc oxide, 15 parts of acetone, 5 parts of triethylamine, 5 parts of 1,4-butanediol, 200 parts of distilled water, polyethylene glycol (200) acrylic acid 30 parts of ester, 0.15 parts of ammonium persulfate, 8 parts of non-ionic polyurethane thickener, 4 parts of leveling agent BYK-349, ...

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Abstract

The invention discloses a water-based finishing agent for leather as well as a preparation method and a roller coating process. The water-based finishing agent comprises a component A and a componentB in matched use. The adhesive force between the water-based finishing agent and the leather body is improved; according to the component B, by utilizing complementary advantages of polyester glycol and polyether glycol, the water-based finishing agent for leather has high tensile strength and elongation at break and excellent water resistance; the acrylate monomer is added into the component B for modifying, so that the agent has excellent film-forming agent, adhesive force, water resistance, solvent resistance and heat resistance, and the cost is reduced; casein is added into the component B, so that the bending resistance of the water-based finishing agent is improved, the water resistance and water-resisting property are improved, and the market prospects are wide.

Description

technical field [0001] The invention belongs to the technical field of leather processing, and in particular relates to a leather water-based finishing agent, a preparation method and a roll coating process. Background technique [0002] Leather finishing agent is a general term for a class of leather auxiliary agents used to protect and beautify leather on the surface of leather. It is composed of film-forming substances, coloring materials, thinners and other additives in a certain proportion. The basis of paints. Leather finishing agents also play a very important role in the leather manufacturing industry. They can increase the appearance of leather, prolong the service life of leather, significantly improve the quality and grade of leather products, and increase trade value. [0003] At present, the traditional tanning industry is facing great pressure of industrial transformation and upgrading. Traditional leather finishing agents are mostly solvent-based polyurethane...

Claims

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Application Information

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IPC IPC(8): C09D151/08C09D175/04C09D7/61C14C11/00C08F283/00C08F220/18C08G18/66C08G18/48C08G18/42C08G18/34C08G18/32
CPCC08F220/18C08F283/006C08G18/3206C08G18/348C08G18/4018C08G18/42C08G18/4238C08G18/425C08G18/4825C08G18/4854C08G18/6625C08K2003/2296C08L2201/08C09D7/61C09D151/08C09D175/04C14C11/006C08K3/22C08F220/1811
Inventor 宫海淇宫恩文宫日华付余庆
Owner 山东莱福特皮革制品有限公司
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