Preparation method and device of water-based waterproof Pu artificial leather

A preparation device and technology for artificial leather, applied to the device for coating liquid on the surface, textiles and papermaking, coating, etc., can solve the problems of water-based PU, etc., achieve high quality, ensure drying quality, and excellent waterproof effect Effect

Pending Publication Date: 2022-04-29
三明建华纺织有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a preparation method and device for water-based waterproof Pu artificial leather, to solve the problem that there is no water-based PU on the market in the above-mentioned background technology, and it can be used for waterproof performance.

Method used

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  • Preparation method and device of water-based waterproof Pu artificial leather
  • Preparation method and device of water-based waterproof Pu artificial leather
  • Preparation method and device of water-based waterproof Pu artificial leather

Examples

Experimental program
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Effect test

Embodiment 1

[0041] A water-based waterproof Pu artificial leather, comprising a surface layer and a base cloth, the surface layer is made of water-based polyurethane and wood fiber powder, the surface layer accounts for 20-40% of the quality of the PU leather, and the bottom layer accounts for the 30-60% of the mass of the PU leather, and the base cloth accounts for 20-50% of the mass of the PU leather.

[0042] Preferably, the surface layer also includes 2-10% of the water-based color paste, 1-5% of the surface layer thickener and 5-15% of the surface layer filler.

Embodiment 2

[0044] A preparation method of water-based waterproof Pu artificial leather, specifically comprising the following steps:

[0045] S1, slurry preparation: mix water-based polyurethane, wood fiber powder, water-based color paste, filler, thickener with 40%, 10%, 5%, 5%, 2% mass ratio to obtain slurry, control The slurry viscosity is 4000cp;

[0046] S2. Coating: Place the release paper flat inside the bearing frame 7, and then evenly scrape the slurry prepared in S1 on both sides of the release paper, with a scraping thickness of 1.5mm;

[0047] S3, one-time drying: send the release paper coated in S2 to the inside of the drying box 1 for drying through the carrier frame 7, the drying temperature is 80 degrees Celsius, the drying time is 5 minutes, and the drying is completed Finally, reset the bearing frame 7, and then repeat steps S2 and S3 once again for the release paper inside the bearing frame 7 to obtain an artificial leather surface layer;

[0048] S4, bonding: the ar...

Embodiment 3

[0052] A preparation method of water-based waterproof Pu artificial leather, specifically comprising the following steps:

[0053] S1, slurry preparation: mix water-based polyurethane, wood fiber powder, water-based color paste, filler, thickener with 50%, 20%, 10%, 10%, 4% mass ratio to obtain slurry, control The slurry viscosity is 7000cp;

[0054] S2. Coating: Place the release paper flat on the inside of the bearing frame 7, and then evenly scrape the slurry prepared in S1 on both sides of the release paper, with a scraping thickness of 2mm;

[0055] S3, one-time drying: send the release paper after coating in S2 to the inside of the drying box 1 for drying through the carrier frame 7, the drying temperature is 100 degrees Celsius, the drying time is 7 minutes, and the drying is completed Finally, the carrying frame 7 is reset, and then the release paper inside the carrying frame 7 is repeated for 2 steps S2 and S3 to obtain an artificial leather surface layer;

[0056] ...

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Abstract

The invention discloses a water-based waterproof Pu artificial leather preparation method, which comprises: slurry preparation: uniformly mixing water-based polyurethane, wood fiber powder, a water-based color paste, a filler and a thickener to obtain a slurry; coating: coating release paper with the slurry in a blade manner; primary drying: sending the coated release paper into a drying box through a bearing frame, and drying to obtain an artificial leather surface layer; laminating: laminating the artificial leather surface layer on the base cloth to obtain a semi-finished product A; and secondary drying: preparing the water-based waterproof Pu artificial leather. The water-based waterproof Pu artificial leather is subjected to release rolling, finished product inspection and warehouse-out. According to the invention, the slurry is prepared from environment-friendly materials, and meanwhile, during slurry preparation, additional other solvent design is not needed, so that the waterproof effect is excellent, the defect that an existing water-based PU product cannot be used as a waterproof garment material is overcome, and the blank of waterproof Pu of solvent-free and zero-emission voc artificial leather is filled.

Description

technical field [0001] The invention relates to the technical field of leather production and processing, in particular to a preparation method and device for water-based waterproof Pu artificial leather. Background technique [0002] In China, people are used to calling the artificial leather produced from PU resin as PU artificial leather (referred to as PU leather); the artificial leather produced from PU resin and non-woven fabrics as raw materials is called PU synthetic leather (abbreviated as synthetic leather). The above three kinds of leather are collectively referred to as synthetic leather. Artificial leather is the first substitute invented for leather fabrics. It is made of PVC, plasticizer and other additives and calendered on cloth. The advantages are cheap, colorful, There are many patterns, but the disadvantage is that it is easy to harden and become brittle. PU synthetic leather is used to replace PVC artificial leather, and its price is higher than PVC art...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06N3/14D06N3/00B05D3/02B05D3/04
CPCD06N3/14D06N3/0061D06N3/0097D06N3/0006D06N3/0011D06N3/0077B05D3/0254B05D3/0413D06N2209/1635D06N2209/128D06N2211/10D06N2211/28
Inventor 王伟华
Owner 三明建华纺织有限公司
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