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Preparation method of anti-bacterial flame-retardant polyurethane synthetic leather applicable to furniture

A manufacturing method and synthetic leather technology, applied in the field of synthetic leather, can solve the problems of synthetic leather's unsatisfactory flame retardancy and antibacterial and antimildew properties, poor flame retardancy and antibacterial and antimildew effects, and achieve long-term antibacterial and antimildew properties Good, good flame retardant effect, good hand feeling effect

Active Publication Date: 2015-06-24
VESACH FURNITURE & DECORATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the flame-retardant and antibacterial and anti-mildew properties of the existing synthetic leather are not ideal, and when used in furniture production, the flame-retardant effect and anti-bacterial and anti-mildew effect are not good.

Method used

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  • Preparation method of anti-bacterial flame-retardant polyurethane synthetic leather applicable to furniture

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] The manufacture method of the antibacterial flame-retardant polyurethane synthetic leather for furniture of the present embodiment comprises the following steps successively:

[0026] (1) Impregnate the base arrangement in polyurethane polyurea resin; then put the impregnated base cloth into water to solidify the polyurethane polyurea resin and extract the solvent dimethyl formamide in it, forming a porous layer on the surface of the base cloth Sexual elastic body;

[0027] The polyurethane polyurea resin is made of the following raw materials in weight ratio: 1000 parts of polytetrahydrofuran ether diol with an average molecular weight of 1000, 100 parts of 2,4-toluene diisocyanate, diphenylmethane-4,4- 190 parts of diisocyanate, 15 parts of chain extender (the chain extender is a combination of N-methyl-bisamine-propylamine and hydrazine hydrate with a molar ratio of 40:60), 4000 parts of dimethylformamide.

[0028] The preparation method of the above-mentioned polyu...

Embodiment 2

[0039] The manufacture method of the antibacterial flame-retardant polyurethane synthetic leather for furniture of the present embodiment comprises the following steps successively:

[0040] (1) Impregnate the base arrangement in polyurethane polyurea resin; then put the impregnated base cloth into water to solidify the polyurethane polyurea resin and extract the solvent dimethyl formamide in it, forming a porous layer on the surface of the base cloth Sexual elastic body;

[0041] The polyurethane polyurea resin is made of the following raw materials in weight ratio: 500 parts of polytetrahydrofuran ether diol with an average molecular weight of 2000, 120 parts of 2,4-toluene diisocyanate, diphenylmethane-4,4- 150 parts of diisocyanate, 10 parts of chain extender (the chain extender is a combination of N-methyl-bisamine-propylamine and hydrazine hydrate with a molar ratio of 40:60), 3000 parts of dimethylformamide;

[0042] The preparation method of the above-mentioned polyur...

Embodiment 3

[0053] The manufacture method of the antibacterial flame-retardant polyurethane synthetic leather for furniture of the present embodiment comprises the following steps successively:

[0054] (1) Impregnate the base arrangement in polyurethane polyurea resin; then put the impregnated base cloth into water to solidify the polyurethane polyurea resin and extract the solvent dimethyl formamide in it, forming a porous layer on the surface of the base cloth Sexual elastic body;

[0055] The polyurethane polyurea resin is made of the following raw materials in weight ratio: 1500 parts of polytetrahydrofuran ether diol with an average molecular weight of 4000, 80 parts of 2,4-toluene diisocyanate, diphenylmethane-4,4- 250 parts of diisocyanate, 25 parts of chain extender (the chain extender is a combination of N-methyl-diamine-propylamine and hydrazine hydrate with a molar ratio of 40:60), 6000 parts of dimethylformamide;

[0056] The preparation method of the above-mentioned polyure...

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Abstract

The invention discloses a preparation method of anti-bacterial flame-retardant polyurethane synthetic leather applicable to furniture. The preparation method sequentially comprises the following steps: (1) soaking base fabric in polyurethane polyurea resin; then putting the soaked base fabric in water, solidifying the polyurethane polyurea resin and extracting a solvent in the resin to form a porous elastomer on the surface of the base fabric; (2) coating one surface of the base fabric processed by the step (1) with polyurethane resin to form a polyurethane resin coating, and then drying the polyurethane resin coating to obtain a synthetic leather semi-finished product; and (3) coating the polyurethane resin coating of the synthetic leather semi-finished product with a surface decoration layer, and drying the synthetic leather semi-finished product, thus obtaining the polyurethane synthetic leather. The polyurethane resin and the coating of the surface decoration layer contain fire retardants, namely didecyl phthalate-ethylene glycol (DDP-EG) and anti-bacterial anti-mildew auxiliaries, namely nanometer Ag / TiO2. The prepared polyurethane synthetic leather is good in gas permeability, lasting in anti-bacterial anti-mildew property and good in flame retardant property.

Description

technical field [0001] The invention relates to synthetic leather, in particular to a method for manufacturing antibacterial and flame-retardant polyurethane synthetic leather for furniture. Background technique [0002] At present, products with antibacterial and antifungal properties are recognized by countries around the world as green, environmentally friendly and healthy products across the century. The application of products with antibacterial and antifungal properties can fundamentally eliminate the gap between people bacterial cross-infection. Moreover, most modern buildings are high-rise buildings. If a fire breaks out, the damage to personnel will be very large, so it is essential to increase the flame retardancy of furniture. [0003] Leather is something that people often come into contact with in life, and it can be used in the production of furniture (such as leather sofas), clothing, etc. At present, China's total domestic leather demand has reached 800 mil...

Claims

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Application Information

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IPC IPC(8): D06N3/14B32B27/18C08G18/48C08G18/46C08K5/12C08K3/22C08K3/08C08L75/06C08L75/08C09D177/00C09D5/14
Inventor 黄茂强余洪涛
Owner VESACH FURNITURE & DECORATION
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