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Method for preparing release paper with concave-convex grooved texture

A technology of concave-convex and release paper, which is applied in the field of light industry papermaking, can solve the problems of complex production process, large amount of silicone oil, and high production cost of release paper, and achieve the effects of simplifying the production process, low cost, and improving environmental problems

Active Publication Date: 2012-03-28
HUNAN FUTAI DIGITAL MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is mainly to solve the problems of high preparation cost, complex manufacturing process and large amount of silicone oil in the existing release paper, and to provide a method for preparing release paper by using cheap calcium carbonate and other powder materials through simple procedures. method

Method used

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  • Method for preparing release paper with concave-convex grooved texture
  • Method for preparing release paper with concave-convex grooved texture
  • Method for preparing release paper with concave-convex grooved texture

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Add 70kg of calcium carbonate with a particle size of 2000 mesh into a high-speed mixer, and heat it to 120°C, then add 1kg of titanate coupling agent, stir at high speed for 30min, then add 14kg of polyethylene, 1kg of maleic anhydride modified polyethylene, 2kg of polyethylene wax and 1kg of azodicarbonamide were heated to 150°C, stirred at a high speed for 60 minutes, and then 2kg of silicone oil was added and stirred for 30 minutes to obtain a mixture. Then the mixture is sent to the paper film equipment, and the mixture becomes molten at 170°C and is inflated by the die head of the paper film machine to make a paper film, and then passes through the concave-convex embossing set behind the die head of the paper film machine After the round shaft is rolled, the surface is grooved and embossed, and the release paper with concave and convex grooves is cooled.

[0030] The paper film is rolled through a circular shaft with concave-convex embossing at a speed of 80m / min....

Embodiment 2

[0032] Add 85kg of talc powder with a particle size of 1000 mesh into the high-speed mixer, and after heating to 130°C, add 1kg of silane coupling agent respectively, after stirring at high speed for 50min, add 30kg of polyethylene, 4kg of maleic anhydride-modified polypropylene, and 2kg of paraffin wax 1. 0.5kg of azodicarbonamide, heated to 150°C, stirred at a high speed for 60 minutes, then added 3kg of silicone oil and continued to stir for 30 minutes to obtain a mixture. Then the mixture is sent to the paper film equipment, and the mixture becomes molten at 180°C and is inflated by the die head of the paper film machine to make a paper film, and then passes through the concave-convex embossing set behind the die head of the paper film machine After the round shaft is rolled, the surface is grooved and embossed, and the release paper with concave and convex grooves is cooled.

[0033] The paper film is rolled through a circular shaft with concave-convex embossing at a spee...

Embodiment 3

[0035] Add 50kg of talc powder with a particle diameter of 800 mesh and 20kg of calcium carbonate with a particle diameter of 2000 mesh into a high-speed mixer, and heat it to 140°C, add 1.5kg of titanate coupling agent, stir at high speed for 30 minutes, and then add 15kg of polyethylene , 3kg of maleic anhydride modified polyethylene, 1kg of polyethylene wax, and 1kg of ammonium carbonate were heated to 150°C, stirred at high speed for 55 minutes, and then added with 4kg of methyl silicone oil and continued to stir for 30 minutes to obtain a mixture. Then the mixture is sent to the paper film equipment, and the mixture becomes molten at 200°C and is inflated by the die head of the paper film machine to make a paper film, and then passes through the concave-convex embossing set behind the die head of the paper film machine After the round shaft is rolled, the surface is grooved and embossed, and the release paper with concave and convex grooves is cooled.

[0036] The paper f...

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Abstract

The invention belongs to a method for preparing release paper with concave-convex grooved texture. The formula of the release paper comprises 60 t0 85 weight parts of inorganic powder material, 10 to 40 weight parts of high polymer, 0.5 to 5 weight parts of antisticking agent, 0.3 to 3 weight parts of lubricating agent, 0.1 to 2 weight parts of foaming agent and 0.1 to 3 weight parts of activator. The preparation method comprises: stirring the inorganic powder material and the activator; adding the high polymer, the lubricating agent and the foaming agent and stirring; uniformly mixing, adding the antisticking agent, continuously stirring till the mixture is uniform, and obtaining a mixed material; and feeding the mixed material into paper film forming equipment to form paper films, and rolling the paper films with a circular shaft to obtain the release paper. When the method disclosed by the invention is adopted, the need of cutting trees is obviated; the cost is low; the need of film spraying and silicon applying is obviated in a production process; organic solvent is not used; the manufacturing process is simplified; and the energy consumption is low. The method has the characteristics of water resistance, dampness resistance and high strength, contributes to relief of environmental problems and is in accordance to environment-protection and energy-conservation requirements.

Description

technical field [0001] The invention belongs to the field of light industry papermaking, in particular to a method for preparing release paper, in particular to a method for preparing release paper with concave-convex grooves. Background technique [0002] Release paper, also known as release paper and anti-adhesive paper, is mainly pasted on the surface of the tape to protect the adhesive layer on the surface of the tape. The traditional release paper is composed of base paper, isolation layer and anti-adhesive layer. Its preparation process is to coat a layer of release agent (the release agent is mainly polyethylene) on the surface of the bottom paper of the release paper, and then coat a layer of anti-sticking agent (the anti-sticking agent is mainly silicone oil) on the surface of the coating layer to obtain Release paper. [0003] The release paper produced by the existing technology requires a large amount of base paper, which is made of wood pulp. Since wood takes ...

Claims

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Application Information

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IPC IPC(8): C08L23/06C08L51/06C08L67/04C08K13/06C08K9/06C08K9/04C08K3/34C08K3/26C08J9/10B29C69/00B29C59/04B29C55/28
Inventor 沈宝善陈登龙沈宝成陈玲令
Owner HUNAN FUTAI DIGITAL MATERIAL TECH
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