High temperature resistant release paper and preparation method thereof

A technology of high temperature resistant and release paper, applied in papermaking, paper coatings, textiles and papermaking, etc., can solve the problems of high cost and immature production technology, and achieve the effect of low cost and good temperature resistance.

Inactive Publication Date: 2014-06-25
东莞市亿信宏纸业有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] After investigation, no domestic intellectual property rights such as patents related to the manufacture of high-temperature-resistant release paper have been found. There is currently no standard data for the manufacture of high-temperature-resistant release paper base paper at home and abroad, and only domestic The data of some physical indicators of the foreign release paper, such as the quantitative of the foreign release paper is 175±5 g / ㎡, and the tightness is ≤1.0g / cm 3 , longitudinal tensile force ≥ 100N, transverse tearing degree ≥ 1.1N, peeling times ≥ 10 times, heat-resistant temperature 180-210 ℃, the current domestic production technology of high-temperature resistant release paper is immature, and the domestic method for manufacturing high-temperature resistant paper It uses mineral fibers such as high-temperature-resistant fibers, and uses papermaking technology to produce high-temperature-resistant paper, and the cost is relatively high.

Method used

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  • High temperature resistant release paper and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Embodiment 1 A kind of preparation method of high temperature resistant type release paper, the steps are as follows in parts by weight:

[0030] (1) Slurry preparation: Soak kraft bleached softwood pulp boards in water for 4 hours, concentrate the concentration of the slurry to a water weight content of 10%, and refine in a PFI refiner for 5 minutes. Keep the beating degree of the pulp at 30-35°SR; concentrate the ground pulp again, disperse the pulp into a sealed bag, and balance the moisture at room temperature for 24 hours, measure the dry fiber content of the pulp for future use .

[0031] (2) Preparation of dry paper sheets: Weigh the slurry according to the required area of ​​the product, weigh 0.5 parts of the humidifying enhancer and 10 parts of the inorganic high temperature resistant auxiliary agent for every 100 parts of the slurry; and inorganic high-temperature-resistant additives are fully separated in the fiber separator, the rotating speed is 2800~3000...

Embodiment 2

[0035] Embodiment 2 A kind of preparation method of high temperature resistant release paper, the steps are as follows in parts by weight:

[0036] (1) Slurry preparation: Soak kraft bleached softwood pulp boards in water for 3 hours, concentrate the concentration of the pulp to about 5%, and refine in a PFI refiner for 3 minutes to make the pulp The degree of beating is 30-35°SR; concentrate the ground slurry, disperse the slurry into a sealed bag, and balance the water at room temperature for 24 hours, and measure the dry fiber content of the slurry for later use.

[0037](2) Tablet copying: Weigh the slurry according to the required area of ​​the product, weigh 0.25 parts of the humidifying strength agent and 2 parts of the inorganic high temperature resistance additive for every 100 parts of the slurry; The high-temperature additives are fully separated in the fiber separator, the speed is 2800~3000r / min, and the separation time is 8min; the dispersed pulp is sheeted in th...

Embodiment 3

[0041] Embodiment 3 A kind of preparation method of high temperature resistant type release paper, the steps are as follows in parts by weight:

[0042] (1) Slurry preparation: Soak kraft bleached softwood pulp boards in water for 5 hours, concentrate the concentration of the pulp to about 15%, and refine in a PFI refiner for 5 minutes to make the pulp The degree of beating is 30-35°SR; concentrate the ground slurry, disperse the slurry into a sealed bag, and balance the water at room temperature for 24 hours, and measure the dry fiber content of the slurry for later use.

[0043] (2) Tablet copying: Weigh the slurry according to the required area of ​​the product, weigh 0.75 parts of the humidifying enhancer and 12 parts of the inorganic high temperature resistant auxiliary agent for every 100 parts of the slurry; The high-temperature additives are fully separated in the fiber separator, the speed is 2800~3000r / min, and the separation time is 12min; the dispersed pulp is shee...

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Abstract

The invention relates to a high temperature resistant paper based material, in particular to high temperature resistant release paper and a preparation method thereof. The preparation method comprises the following steps: completely dispersing an inorganic high temperature resistant aid, a humidifying agent and pulp in a fiber separator; making a paper sheet on a sheet making machine by using the pulp; squeezing; performing vacuum drying; applying glue to the surface of the paper sheet; coating a high temperature resistant reinforcing agent, an organic high temperature resistant aid and a release agent sequentially on the paper sheet subjected to glue application by a multi-layer coating process; and drying to obtain the product high temperature resistant release paper. The temperature resistant effect of the paper sheet is achieved by a method for adding inorganic high temperature resistant aid in the pulp and coating the organic high temperature resistant aid on the surface of the paper sheet; the high temperature resistant release paper is quantified as 130 g / m<2> and has temperature resistance at the temperature of between 180 and 200 DEG C and heat resistant dimensional stability, does not comprise high price mineral fiber substances, has low cost, and is applicable to high temperature resistant paper such as high temperature resistant release paper and high temperature resistant stainless steel isolation paper.

Description

technical field [0001] The invention relates to a high temperature resistant paper base material, in particular to a high temperature resistant release paper and a preparation method thereof. Background technique [0002] The types of release paper can basically be divided into two categories: one is the release paper for the production of polyvinyl chloride (PVC) artificial leather; the other is the release paper for the production of polyurethane (PU) synthetic leather. Paper. Some of these release papers can be used for both PVC artificial leather and polyurethane synthetic leather. Due to the immature production of domestic release paper, especially the production technology of high-temperature resistant release paper, most of the high-temperature resistant release paper currently relies on imports. Therefore, the research and development of high-temperature resistant release paper not only has a high market value, but also It can break the monopoly of foreign companie...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D21H11/02D21H19/40D21H19/54D21H19/58D21H21/16D21H21/14D21H21/18
Inventor 龙柱梁攀
Owner 东莞市亿信宏纸业有限公司
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