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

Preparation method of matte release paper

A technology for release paper and preparation steps, which is applied in the field of matte release paper preparation, which can solve the problems of waste of production time, manpower and material resources, limited use occasions, low production efficiency, etc., to increase the number of release times and reduce the amount used , The effect of high demoulding times

Pending Publication Date: 2021-02-02
中国制浆造纸研究院衢州分院
View PDF1 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Imported release paper can be reused about 5 times, and domestic release paper can only be used about 2 times. Replacing the release paper wastes production time, manpower and material resources, and the production efficiency is low.
3. Lots of waste
4. Limited use occasions

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
  • Preparation method of matte release paper

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A preparation method of matt release paper, comprising the following preparation steps:

[0033] (1) Select bleached kraft softwood pulp for refining, and the bleaching kraft softwood pulp has a beating degree of 34°SR as the raw material slurry;

[0034] (2) Add reinforcing agent polyamide-epichlorohydrin PAE and slurry internal sizing agent high-dispersion rosin glue to the raw material slurry, the addition amount of PAE is 1.2%, and the addition amount of high-dispersion rosin glue is 1.5%;

[0035] (3) Carry out papermaking, pressing, drying, coiling, and slitting on the paper machine to obtain the release paper base paper;

[0036] (4) Carry out primer on the surface of the base paper of the release paper, the primer is styrene-acrylate, and the coating amount is 11.7g / m 2 , the coating thickness was 9.6 μm, the drying temperature was 110 °C, and the drying time was 2 min, and the primer coated paper was prepared;

[0037] (5) Rewet the primer paper, adjust the h...

Embodiment 2

[0041] A preparation method of matt release paper, comprising the following preparation steps:

[0042] (1) Select bleached kraft softwood pulp for refining, and the bleaching kraft softwood pulp has a beating degree of 41°SR as the raw material slurry;

[0043] (2) Add the strengthening agent amphoteric polyacrylamide and the internal sizing agent alkyl ketene dimer AKD to the raw material slurry, the addition amount of amphoteric polyacrylamide is 0.8%, and the addition amount of AKD is 1%;

[0044] (3) Carry out papermaking, pressing, drying, coiling, and slitting on the paper machine to obtain the release paper base paper;

[0045] (4) Carry out primer on the surface of the release paper base paper, the primer is carboxylated acrylic acid, and the coating amount is 12.2 g / m 2 , the thickness of the coating is about 10.1 μm, the drying temperature is 105 ℃, and the drying time is 3 minutes, and the primer coated paper is prepared;

[0046] (5) Rewet the primer paper, adju...

Embodiment 3

[0050] A preparation method of matt release paper, comprising the following preparation steps:

[0051] (1) Select bleached kraft softwood pulp for refining, and the bleaching kraft softwood pulp has a beating degree of 43°SR as the raw material slurry;

[0052] (2) Add reinforcing agent carboxymethyl cellulose and pulp internal sizing agent styrene maleic anhydride copolymer ASA to the raw material slurry, the addition amount of carboxymethyl cellulose is 0.6%, and the addition amount of ASA is 1.2%;

[0053] (3) Carry out papermaking, pressing, drying, coiling, and slitting on the paper machine to obtain the release paper base paper;

[0054] (4) Carry out primer on the surface of the release paper base paper, the primer is acrylic acid, and the coating amount is 11.8 g / m 2 , the thickness of the coating is about 10.0 μm, the drying temperature is 110 ° C, and the drying time is 2 min, and the primer coated paper is prepared;

[0055] (5) Rewet the primer paper, adjust the...

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

PropertyMeasurementUnit
peel strengthaaaaaaaaaa
peel strengthaaaaaaaaaa
peel strengthaaaaaaaaaa
Login to View More

Abstract

The invention discloses a preparation method of matte release paper, and relates to the technical field of pulping and papermaking engineering. The production method comprises the following steps: (1)grinding bleached sulfate softwood pulp; (2) adding a reinforcing agent and an internal sizing agent; (3) performing papermaking to obtain release paper base paper; (4) performing base coating on therelease paper base paper; (5) subjecting the base coating paper to wet super calendaring; and (6) coating the surface of the base coating paper to obtain the release paper. The gloss of the producedmatte release paper is less than or equal to 15 gloss units, the smoothness is less than or equal to 40s, the stripping force is less than or equal to 2N / 25mm, the release frequency is more than or equal to 4, and similar imported products are replaced.

Description

technical field [0001] The invention belongs to the technical field of pulping and papermaking engineering, and in particular relates to a preparation method of matt release paper. Background technique [0002] Release paper, also known as silicone oil paper and anti-adhesive paper, mainly plays the role of isolating sticky objects, such as adhesive tape. It generally needs to be stripped and discarded when used. Now it is mainly used as a carrier for adhesive tape or adhesive products, and it is also widely used in food, military and medical industries. [0003] Release paper can be divided into plastic release paper and non-plastic release paper according to the paper base material, and can also be classified into silicone release paper and non-silicon release paper according to the release agent. Plastic release paper is coated with plastic on the paper (commonly known as pouring mold), which can be coated with plastic on one side or double-sided. Because the release a...

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
Patent Type & Authority Applications(China)
IPC IPC(8): D21H27/00D21H11/04D21H21/18D21H21/16D21H19/82D21H19/32D21F11/00D21D1/20
CPCD21H27/001D21H11/04D21H21/18D21H21/16D21H19/824D21H19/32D21F11/00D21D1/20
Inventor 周立春孙先启刘文李鸿凯赵丽君
Owner 中国制浆造纸研究院衢州分院
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