Thin type micro villus polyurethane certificate leather and preparation method thereof

A polyurethane, fleece-thin technology, used in textiles and papermaking, roughening, fabric surface trimming, etc., can solve the problems of easy color fading, fineness of fleece effect, poor air and moisture permeability, etc., to improve color fastness, color Brilliant, durability-enhancing effects

Inactive Publication Date: 2013-12-25
ANHUI ANLI MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With the development of social economy, more and more consumers advocate fashion, pursue trends, and pay attention to taste. There are all kinds of exquisite and precious accessories, which can be seen everywhere, such as IPAD, IPHONE, computer, etc. With more and more With the emergence of more and

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] 1. Preparation of polyurethane slurry

[0029] Prepared with wet synthetic leather production equipment, add 220 parts of solvent N,N'-dimethylformamide DMF, 0.3 part of color dispersant BYK-104, 0.3 part of penetrant BYK-6798, JRS wood 8 parts of plain powder and 15 parts of color paste BLPN-560, stirred for 30-60 minutes at normal temperature and pressure, then added 100 parts of polyester polyurethane resin HDW-3050, continued stirring for 30-50 minutes at normal temperature and pressure, and then Stirring for 30-60 minutes under the condition of ≤-0.75 bar to obtain polyurethane slurry.

[0030] Among them, the color dispersant BYK-104 and the penetrant BYK-6798 are products of BYK Chemical Company of Germany; the lignin is the product of JRS Company of Germany; the color paste BLPN-560 is the product of Zhejiang Shenlan Chemical Co., Ltd.; the polyester polyurethane resin HDW -3050 is a product of Jiangsu Huada New Material Co., Ltd.

[0031] The polyurethane slu...

Embodiment 2

[0053] Adopt the same process as in Example 1, but step 1) In the preparation of polyurethane slurry, the raw material ratio is: 230 parts of N,N'-dimethylformamide DMF, 0.2 part of color dispersant BYK-104, penetrant BYK- 0.5 parts of 6798, 6 parts of JRS lignin, 13 parts of color paste BLPN-560, 120 parts of polyester polyurethane resin HDW-3050;

[0054] Step 4) In the post-processing color change, the raw material ratio of the color change paste is: 80 parts by mass of polyurethane color change paste UA-135G, 10 parts by mass of butanone, and 3 parts by mass of ink BLPP-509. Others are the same as embodiment 1.

[0055] The micro-velvet thin document leather prepared by the above method presents a delicate fluffy appearance, soft hand feeling, light weight, similar to genuine leather, and the thickness is equivalent to cloth base. After directional polishing, in addition to soft hand feeling, it also has It improves the air permeability of the leather, improves the color ...

Embodiment 3

[0057] Adopt the same process as in Example 1, but step 1) In the preparation of polyurethane slurry, the raw material ratio is: 260 parts of N,N'-dimethylformamide DMF, 0.6 part of color dispersant BYK-104, penetrant BYK- 6798 0.1 parts, JRS lignin 20 parts, color paste BLPN-560 13 parts, polyester polyurethane resin HDW-3050 120 parts;

[0058] Step 4) In the post-processing color change, the raw material ratio of the color change paste is: 45 parts by mass of polyurethane color change paste UA-135G, 5 parts by mass of butanone, and 1 part by mass of ink BLPP-509. Others are the same as embodiment 1.

[0059] The micro-velvet thin document leather prepared by the above method presents a delicate fluffy appearance, soft hand feeling, light weight, similar to genuine leather, and the thickness is equivalent to cloth base. After directional polishing, in addition to soft hand feeling, it also has It improves the air permeability of the leather, improves the color fastness and ...

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PUM

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Abstract

The invention discloses thin type micro villus polyurethane certificate leather and a preparation method of the thin type micro villus polyurethane certificate leather. The preparation method of the thin type micro villus polyurethane certificate leather takes a 0.45 imitated micro fiber fabric base raising on a single face as a carrier and comprises the following steps: directly coating a polyurethane resin layer with a certain viscosity on the raised surface of the 0.45 imitated micro fiber fabric base, after coagulation, forming a polyurethane epithelium on the surface of the fabric base after cohesion, and during the film formation process, sequentially carrying out washing for displacing a DMF (dimethyl formamide) solvent, drying and shaping the polyurethane epithelium, so as to obtain a semi-finished product; carrying out oriented buffing and tentering on the surface layer of the semi-finished product, then carrying out aftertreatment and colour alternation, so that the thin type micro villus polyurethane certificate leather finished product is obtained. The thin type micro villus polyurethane certificate leather obtained by adopting the preparation method has the advantages of fine villus, soft handfeel, light weight, superior air permeability and downy feeling like micro fiber, a certificate leather lining made adopting the thin type micro villus polyurethane certificate leather shines with dazzling brilliance, is decent and has excellent protective properties, such as shakeproof, breakageproof and scratchproof properties, on a delicate article, and the thin type micro villus polyurethane certificate leather is especially applicable to linings of shells of a mobile phone, a computer and the like.

Description

technical field [0001] The invention relates to a polyurethane slurry and a micro-velvet thin polyurethane synthetic leather containing the polyurethane slurry and a preparation method thereof, in particular to a polyurethane synthetic leather with suede effect and a preparation method thereof. Background technique [0002] Polyurethane synthetic leather, referred to as PU synthetic leather, is a kind of imitation leather synthetic leather that uses various base fabrics as base materials and coats polyurethane resin on the base materials to make it have various patterns, patterns, functions and handles. With the development of social economy, more and more consumers advocate fashion, pursue trends, and pay attention to taste. There are all kinds of exquisite and precious accessories, which can be seen everywhere, such as IPAD, IPHONE, computer, etc. With more and more With the emergence of more and more high-end products, the protective requirements for high-end products suc...

Claims

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Application Information

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IPC IPC(8): D06N3/14D06C11/00
Inventor 陈绪珍赵伟栋程艳西王义峰王柏春杜东旭张翠春郭化强马孟祥孔为青刘子斌
Owner ANHUI ANLI MATERIAL TECH
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