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Preparation method of breathable artificial leather product with moisture absorption and sweat releasing effects

A technology for moisture absorption and perspiration, artificial leather, applied in the field of synthetic leather, can solve the problems of no DMF removal, DMF residues, product safety issues, etc., to achieve the effect of improving product safety factor and reducing DMF residues

Inactive Publication Date: 2019-02-12
南亚塑胶工业(惠州)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, during the pre-water bath process of the polyurethane synthetic leather in the above scheme, it is easy to have DMF residue on the surface of the polyurethane synthetic leather due to insufficient water bath, and at the same time, in the subsequent drying process, the residual DMF is not further removed, which eventually causes product safety problems.

Method used

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  • Preparation method of breathable artificial leather product with moisture absorption and sweat releasing effects
  • Preparation method of breathable artificial leather product with moisture absorption and sweat releasing effects

Examples

Experimental program
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Effect test

Embodiment 1

[0047] see figure 1 , a method for preparing a moisture-absorbing and sweat-wicking breathing artificial leather product, the preparation steps of which are:

[0048] Step 1, the base cloth is degreased, and the base cloth is placed in the degreasing equipment for degreasing operation;

[0049] Step 2, electrostatic base cloth removal, clamping the degreased base cloth with clamps and hanging it in the electrostatic adsorption box 1 for removal of impurities, and performing electrostatic adsorption treatment on the front and back sides of the base cloth;

[0050] Step 3. Prepare solvent-free wet-process foaming polyurethane. In parts by mass, 60 parts of polyols are added to the reaction kettle, then the polyols are dehydrated, and 90 parts of isocyanate, 15 parts of treatment agent and 0.2 parts of catalyst, then reacted at 65°C for 3 hours to obtain solvent-free wet-process foamed polyurethane;

[0051] Step 4: Scrape coating to form a film, using a precision scraper knife...

Embodiment 2

[0067] A method for preparing a moisture-absorbing and sweat-wicking breathing artificial leather product, the preparation steps of which are:

[0068] Step 1, the base cloth is degreased, and the base cloth is placed in the degreasing equipment for degreasing operation;

[0069] Step 2, electrostatic base cloth removal, clamping the degreased base cloth with clamps and hanging it in the electrostatic adsorption box 1 for removal of impurities, and performing electrostatic adsorption treatment on the front and back sides of the base cloth;

[0070] Step 3. Prepare solvent-free wet-process foaming polyurethane. Add 30 parts of polyol to the reaction kettle in parts by mass, then dehydrate the polyol, add 40 parts of isocyanate, 12 parts of treatment agent and 0.1 part of catalyst, the molar ratio of the isocyanate group in the isocyanate to the hydroxyl group in the polyol is 1.5, the treatment agent includes nanoporous moisture-absorbing and sweat-wicking organic polymer powde...

Embodiment 3

[0077] A method for preparing a moisture-absorbing and sweat-wicking breathing artificial leather product, the preparation steps of which are:

[0078] Step 1, the base cloth is degreased, and the base cloth is placed in the degreasing equipment for degreasing operation;

[0079] Step 2, electrostatic base cloth removal, clamping the degreased base cloth with clamps and hanging it in the electrostatic adsorption box 1 for removal of impurities, and performing electrostatic adsorption treatment on the front and back sides of the base cloth;

[0080] Step 3. Prepare solvent-free wet-process foaming polyurethane. Add 40 parts of polyol to the reaction kettle in parts by mass, then dehydrate the polyol, add 50 parts of isocyanate, 14 parts of treatment agent and 0.15 parts of the catalyst, the molar ratio of the isocyanate group in the isocyanate to the hydroxyl group in the polyol is 2.2, the treatment agent includes nanoporous moisture-absorbing and sweat-absorbing organic polym...

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Abstract

The invention discloses a preparation method of a breathable artificial leather product with moisture absorption and sweat releasing effects, and belongs to the field of synthetic leathers. The preparation method of the breathable artificial leather product with the moisture absorption and sweat releasing effects comprises the following preparation steps of degreasing of base cloth; electrostatictype impurity removal of the base cloth; preparing of non-solvent wet type foaming polyurethane, scraping and coating for film forming, pre-water bath, ultrasonic type water bath, electrostatic type drying and embossing. The preparation method has the advantages that in the ultrasonic type water bath step, ultramicro bubbles are continuously blown into water by an ultrasonic micro-nano bubble generator; in the electrostatic type drying step, the surface of the base cloth with the polyurethane coating layer is subjected to electrostatic adsorption treatment under the drying condition, and the impurities at the surface of the base cloth with the polyurethane coating layer are removed; after the pre-water bath, the ultrasonic type water bath step is added, so that the residual DMF (dimethyl formamide) at the surface of the polyurethane synthetic leather is further removed; in the drying process, the residual DMF at the surface of the polyurethane synthetic leather is more further removed,so that the residue amount of DMF at the surface of the polyurethane synthetic leather is greatly reduced, and the safety coefficient of the product is obviously improved.

Description

technical field [0001] The invention relates to the field of synthetic leather, in particular to a method for preparing a moisture-absorbing and sweat-wicking breathing artificial leather product. Background technique [0002] At present, the inner lining and insole materials of artificial leather sports shoes will make the human body feel hot, stuffy, Heat consumption, etc. Polyurethane synthetic leather can improve the material of the inner lining and insole of the existing artificial leather sports shoes. The function of breathing effect, the production of polyurethane synthetic leather mainly adopts solvent-based production system, in which the foam coating is obtained by wet coagulation process. method to solidify, and then washed and dried. Adopt this method to obtain the foamed polyurethane coating, there are following major technical problems: one, the solvent-based polyurethane (PU) slurry is coated on the surface of the non-woven fabric by a scraper or a roller c...

Claims

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Application Information

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IPC IPC(8): D06N3/14D06N3/00
CPCD06N3/0045D06N3/0077D06N3/0081D06N3/0084D06N3/0088D06N3/147D06N2207/06D06N2209/126
Inventor 盛修业
Owner 南亚塑胶工业(惠州)有限公司
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