Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Release paper for synthetic leather

A technology for synthetic leather and release paper, applied in the field of release paper, can solve the problems of high cost, many production processes, high requirements for paper base, etc., and achieve the effect of low cost and high gloss.

Inactive Publication Date: 2009-04-22
CHINA LUCKY FILM CORP +1
View PDF3 Cites 21 Cited by
  • 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 synthetic leather, but this process has higher requirements on the paper base, and it is necessary to add an antistatic agent to the paper base, and it also needs to be ground and polished. Many processes and high cost

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Release paper for synthetic leather

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] Preparation of Multifunctional Layer Coating Solution

[0058] 50 parts by weight of styrene-acrylic emulsion;

[0059] 50 parts by weight of water;

[0060] 3 parts by weight of sodium dodecylsulfonate;

[0061] First add 50 parts by weight of styrene-acrylic emulsion [German BASF model: 296DS solid content: 50%] to 50 parts by weight of aqueous solution, mix the solution evenly with a glass rod, and then add 3 parts by weight of dodecylsulfonic acid Sodium is added therein, and the stirring is continued to make a multi-functional layer coating liquid, which is ready for use.

[0062] The multi-functional layer coating solution was coated on a 200-gram photographic base paper with a doctor blade, heated at 80° C. for 30 seconds, and cured to form a film with a film thickness of 30 microns. Then coat the release layer with a silk bar on the multifunctional layer, cure at 100° C. for 40 seconds, and have a film thickness of 30 microns to obtain a leather release paper...

Embodiment 2

[0064] Preparation of Multifunctional Layer Coating Solution

[0065] 40 parts by weight of styrene-butadiene emulsion;

[0066] 40 parts by weight of styrene-acrylic emulsion;

[0067] 20 parts by weight of water;

[0068] 2 parts by weight of dodecyl dimethyl benzyl ammonium chloride;

[0069] First 20 parts by weight of water are added to the styrene-butadiene emulsion [Germany Bayer model: F2040 solid content: 50%] and 40 parts by weight of styrene-acrylic emulsion [German BASF model: 296DS solid content: 50%] by 40 parts by weight In the mixed emulsion formed, use a glass rod to mix the solution evenly, then add 2 parts by weight of dodecyl dimethyl benzyl ammonium chloride to it, continue to stir evenly, and make a multifunctional layer coating liquid, and wait for use.

[0070] The multi-functional layer coating solution was coated on 150-gram coated paper with a doctor blade, heated at 80° C. for 30 seconds and cured to form a film with a film thickness of 30 micro...

Embodiment 3

[0072] Preparation of Multifunctional Layer Coating Solution

[0073] 90 parts by weight of pure acrylic emulsion;

[0074] 10 parts by weight of water;

[0075] 1 part by weight of lauryl betaine;

[0076] First add 10 parts by weight of water to 90 parts by weight of pure acrylic emulsion [German BASF model: PA237 solid content: 50%], mix the solution evenly with a glass rod, and then add 1 part by weight of lauryl betaine Add it therein and continue to stir evenly to make a multi-functional layer coating solution for use.

[0077] The multi-functional layer coating solution was coated on a 180-gram photographic base paper with a doctor blade, heated at 80° C. for 30 seconds, and cured to form a film with a film thickness of 30 microns. Then coat the release layer with a silk bar on the multifunctional layer, cure at 100° C. for 40 seconds, and have a film thickness of 30 microns to obtain a leather release paper. Then, a peel test and a leather gloss test were performed...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses release paper for synthetic leather. A multi-functional layer is arranged between a base material and a release layer; compositions of the multi-functional layer in weight portion are as follows: 40 to 95 portions of adhesive, 5 to 60 portions of water, and 1 to 5 portions of surfactant; and formation materials of the release layer comprise an alcohol acid modified silicon resin, a melamine resin and an acid catalyst. The release paper adopts the multi-functional layer with anti-seepage and smoothing functions, which ensures that an obtained product has low cost; and as the release paper does not contain inorganic particles, the obtained product has higher glossiness.

Description

technical field [0001] The invention relates to a paper product, especially a release paper for high-gloss synthetic leather. Background technique [0002] There is a method for producing synthetic leather by coating a synthetic leather composition such as urethane resin, vinyl chloride resin, polyamide resin, and amino resin on a leather release paper, drying or curing it, and then drying or curing it on the leather release paper. The composition is coated with an adhesive, pasted with a fabric base cloth, etc., and the synthetic leather is obtained by peeling off the leather release paper from the synthetic leather composition. The synthetic leather manufactured by this method can obtain high-gloss synthetic leather by increasing the surface gloss of the leather release paper, that is, transfer the surface state of the leather release paper to the synthetic leather. [0003] At present, there are many techniques for preparing leather release paper. As described in Chinese...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): D21H27/02D21H27/18
Inventor 柳青范云峰王莉宋立旺
Owner CHINA LUCKY FILM CORP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com