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Method for preparing sea-island ultrafine fiber PU (polyurethane) leather base cloth by using additive-type water proofing, oil repellent and antifouling finishing agent

A three-proof finishing agent and ultra-fine fiber technology, which is applied in the direction of fiber type, fiber treatment, chemical instruments and methods, etc., can solve the problems of three-proof performance decline, etc., and achieve a broad market situation, excellent three-proof effect, and soft hand feeling. Effect

Active Publication Date: 2015-06-03
HUAFON MICROFIBER SHANGHAI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, the three-proof performance of the PU leather base cloth produced by this method is greatly reduced after repeated washing, which is related to the hydrophilic performance of the water-based three-proof finishing agent itself.

Method used

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  • Method for preparing sea-island ultrafine fiber PU (polyurethane) leather base cloth by using additive-type water proofing, oil repellent and antifouling finishing agent
  • Method for preparing sea-island ultrafine fiber PU (polyurethane) leather base cloth by using additive-type water proofing, oil repellent and antifouling finishing agent
  • Method for preparing sea-island ultrafine fiber PU (polyurethane) leather base cloth by using additive-type water proofing, oil repellent and antifouling finishing agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Add additive-type three-proof finishing agent to conventional solvent-based polyurethane, additives, color paste, dispersant, solvent and other raw materials, mix evenly to form a wet impregnation slurry, and then use nylon 6 and polyethylene as raw materials for sea-island shorts The non-woven fabric formed by needle punching is soaked in wet slurry, then coagulated and washed with water, and then the polyethylene is extracted in hot toluene, expanded and dried, oiled and rubbed to obtain three anti-microfibers PU leather base cloth;

[0026] For the additive type dipping slurry, the parts by weight of each component are as follows:

[0027]

[0028] The preparation method of described additive type three anti-finishing agent A is as follows:

[0029] Under the protection of nitrogen, add 50g of perfluoroalkyl ethyl alcohol, 50g of toluene diisocyanate, 2g of trimethylolpropane, 30g of stearyl alcohol, and 100g of dimethylformamide into the reaction vessel, and rea...

Embodiment 2

[0041] Add additive-type three-proof finishing agent to conventional solvent-based polyurethane, additives, color paste, dispersant, solvent and other raw materials, mix evenly to form a wet impregnation slurry, and then use nylon 6 and polyethylene as raw materials for sea-island shorts The non-woven fabric formed by needle punching is soaked in wet slurry, then coagulated and washed with water, and then the polyethylene is extracted in hot toluene, expanded and dried, oiled and rubbed to obtain three anti-microfibers PU leather base cloth;

[0042] The impregnated slurry batching technology, non-woven needle punching technology, and impregnated weight reduction technology can all refer to the literature: Qu Jianbo: "Synthetic Leather Technology" P20-P225 processing technology reported.

[0043] For the additive type dipping slurry, the parts by weight of each component are as follows:

[0044]

[0045] The preparation method of described additive type three anti-finishin...

Embodiment 3

[0059] Add additive-type three-proof finishing agent to conventional solvent-based polyurethane, additives, color paste, dispersant, solvent and other raw materials, mix evenly to form a wet impregnation slurry, and then use nylon 6 and polyethylene as raw materials for sea-island shorts The non-woven fabric formed by needle punching is soaked in wet slurry, then coagulated and washed with water, and then the polyethylene is extracted in hot toluene, expanded and dried, oiled and rubbed to obtain three anti-microfibers PU leather base cloth;

[0060] The impregnated slurry batching technology, non-woven needle punching technology, and impregnated weight reduction technology can all refer to the literature: Qu Jianbo: "Synthetic Leather Technology" P20-P225 processing technology reported.

[0061] For the additive type dipping slurry, the parts by weight of each component are as follows:

[0062]

[0063]

[0064] The preparation method of described additive type three a...

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Abstract

The invention discloses a method for preparing sea-island ultrafine fiber PU (polyurethane) leather base cloth by using an additive-type water proofing, oil repellent and antifouling finishing agent. The method comprises the following steps: the additive-type water proofing, oil repellent and antifouling finishing agent is added to solvent type PU, an auxiliary, color paste, a dispersing agent and a solvent raw material, the mixture is uniformly mixed to form wet-process impregnation slurry, then non-woven fabric formed by punching sea-island short fiber taking nylon 6 and polyethylene as the raw materials is impregnated in the wet-process slurry, solidified and washed, then polyethylene is extracted from thermal toluene with decrement, and the water proofing, oil repellent and antifouling ultrafine fiber PU leather base cloth is obtained after expanding and drying, oil applying and leather tanning. The water proofing, oil repellent and antifouling effects of the base cloth can be guaranteed, and soft hand feel can be kept; the ultrafine fiber PU leather base cloth can be used for preparing outdoor sportswear, articles for labor protection, leisure home accessories or automobile interior trim, and has broad market prospect.

Description

technical field [0001] The invention relates to a production method of sea-island superfine fiber PU leather base cloth. Background technique [0002] Leather resources are decreasing day by day, and the processing process has caused serious environmental pollution. The state encourages the elimination of high-pollution leather factories and the development of new materials to replace leather. Microfiber polyurethane synthetic leather (abbreviation: microfiber PU leather) technology is becoming more and more mature, and its physical and chemical properties are higher than those of PVC leather and ordinary PU leather. [0003] Three-proof (that is, waterproof, oil-proof, anti-fouling) microfiber polyurethane synthetic leather (referred to as: microfiber PU leather) is mainly used in outdoor sports, labor protection, leisure home, automotive interior and other fields. [0004] At present, most of the three-proof microfiber PU leather base fabrics on the market are made by pos...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06N3/00B32B27/04B32B27/18C08L75/04C08K5/205D06M13/425D06M101/38
CPCB32B27/04B32B27/18C08K5/205C08L75/04D06M13/425D06N3/00
Inventor 于晓成潘利军贺璇彭力王贺玲吴勇
Owner HUAFON MICROFIBER SHANGHAI
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