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Matte release paper for synthetic leather

A technology for synthetic leather and release paper, applied in papermaking, paper coatings, textiles and papermaking, etc., can solve the problems of poor control, insufficient direct means and high cost

Active Publication Date: 2009-10-28
CHINA LUCKY FILM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The leather release paper prepared by this method is widely used in the production of PU and PVC type synthetic leather, but the production process of this product is relatively complicated, the production process is many, and the cost is high; in addition, a release layer will be set on the cushioning layer, It is not direct enough to use cushioning layer as a means of gloss control, and it is not easy to control

Method used

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  • Matte release paper for synthetic leather

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0067] Preparation of Multifunctional Layer Coating Solution

[0068] 30 parts by weight of kaolin;

[0069] 20 parts by weight of styrene-acrylic emulsion;

[0070] 30 parts by weight of water;

[0071] 1 part by weight of water glass;

[0072] 3 parts by weight of sodium dodecylsulfonate;

[0073] First, pour 1 part by weight of water glass [Laiyang Hengxin Chemical Co., Ltd.] into 30 parts by weight of water, stir evenly, and pour 30 parts by weight of kaolin [Maoming Yinhua Kaolin Industry Co., Ltd. Model: YH-04] , use high-speed stirring to disperse it evenly, add 20 parts by weight of styrene-acrylic emulsion [German BASF model: 296DS solid content: 50%] into the dispersed slurry, mix the solution evenly with a glass rod, and then add 3 parts by weight The sodium dodecylsulfonate was added therein, and continued to stir evenly to make a multi-functional layer coating solution for use.

[0074] Disperse silicon dioxide [Germany Degussa model: DK-500] accounting for 5...

Embodiment 2

[0077] Preparation of Multifunctional Layer Coating Solution

[0078] 50 parts by weight of clay,

[0079] 30 parts by weight of talcum powder,

[0080] 40 parts by weight of styrene-butadiene emulsion,

[0081] 40 parts of styrene-acrylic emulsion,

[0082] 30 parts by weight of water,

[0083] 5 parts by weight of sodium hexametaphosphate,

[0084] 2 parts by weight of dodecyl dimethyl benzyl ammonium chloride,

[0085] First pour 5 parts by weight of sodium hexametaphosphate [Hubei Zhongnanhua Light Organic Materials Co., Ltd.] into 30 parts by weight of water, stir evenly, and pour 50 parts by weight of clay [Shenzhen Warner Special Materials Co., Ltd. Company] and 30 parts by weight of talcum powder [Haicheng Xuefeng High-grade Talcum Powder Factory], use high-speed stirring to disperse it evenly, and add 40 parts by weight of styrene-butadiene emulsion to the dispersed slurry [German Bayer model: F2040 Solid content: 50%] and 40 parts by weight of styrene-acrylic e...

Embodiment 3

[0089] Preparation of Multifunctional Layer Coating Solution

[0090] 80 parts by weight of calcium carbonate,

[0091] 20 parts by weight of pure acrylic emulsion,

[0092] 80 parts by weight of water,

[0093] Sodium polyacrylate 2 parts by weight,

[0094] Lauryl betaine 5 parts by weight,

[0095] First pour 2 parts by weight of sodium polyacrylate [Guangzhou Zongwang New Material Technology Co., Ltd. model: N-30] into 80 parts by weight of water, stir evenly, and pour 80 parts by weight of calcium carbonate [Jiangxi Guangyuan Chemical Co., Ltd. Company model: CC-2000], use high-speed stirring to disperse it evenly, add 20 parts by weight of pure acrylic emulsion [German Bayer model: F2040 solid content: 50%] to the dispersed slurry, and use a glass rod to dissolve the solution Mix evenly, then add 5 parts by weight of lauryl betaine therein, continue to stir evenly, and make a multi-functional layer coating liquid, which is ready for use.

[0096] Disperse silicon di...

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Abstract

A matte release paper for synthetic leather is characterized in that a multi-functional layer is arranged between a substrate and a release layer; the multi-functional layer comprises 30 to 80 parts by weight of inorganic particles, 20 to 80 parts by weight of adhesives, 30 to 80 parts by weight of water, 1 to 8 parts by weight of dispersing agent, and 1 to 5 parts by weight of surfactant; and the release layer comprises matting particles which account for 0.01 percent to 5 percent of the total weight of the release layer. The invention leads the product structure to be simpler and the cost to be lower, and obtains a release layer with controllable gloss by adding the matting particles.

Description

technical field [0001] The invention relates to a paper product, in particular to a release paper for synthetic leather. Background technique [0002] Currently, the raw materials used to manufacture synthetic leather mainly include polyurethane (hereinafter referred to as PU), polyvinyl chloride (hereinafter referred to as PVC), the composition of PU and PVC, and the like. [0003] The following is a manufacturing method for full PU leather: Coat the paste-like surface layer with PU resin on the leather release paper, dry and solidify at about 120 ° C, after film formation, use a two-component curing PU adhesive After bonding it to the base fabric, it is cured at about 120°C, and the release paper is peeled off to make PU leather. These PU resins generally contain organic solvents, but recently, from the perspective of environmental protection, water-based PU is also used, and the drying temperature is relatively high, as high as 160°C. [0004] The other is the productio...

Claims

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Application Information

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IPC IPC(8): D21H19/66D21H19/82D21H21/14D21H21/24D06N3/00
Inventor 柳青王莉范云峰成志秀韩继庆安衡高敬宇
Owner CHINA LUCKY FILM CORP
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