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A kind of flame retardant release paper and its manufacturing process

A production process and release paper technology, which is applied in the field of papermaking, can solve the problems of high base paper weight, high production cost, and low smoothness, and achieve the effects of reducing production cost, reducing drying energy consumption, and improving flame retardancy

Active Publication Date: 2016-08-24
江苏金大包装材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The overall weight of the release paper is large, the production cost is high, and it cannot meet the needs of the market
Furthermore, during the processing of the existing solvent-free silicone oil release paper, the base paper must be coated with chemical raw materials, but the base paper has a high grammage and low smoothness, and it needs to be overpressed at least once before it can be coated. Solvent-free silicone oil layer on the top, due to the extra overpressure process, the processing process is more complicated and the production efficiency is low
[0004] In addition, the existing release paper generally does not have flame retardant performance, once a fire occurs, it will cause inestimable economic losses and casualties

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] The invention provides a flame-retardant release paper and its manufacturing process. The release paper is composed of base paper and a flame-retardant primer layer and a silicone oil layer coated on its outer surface in sequence. The film coating machine evenly coats the high solid content flame retardant primer coating with inorganic flame retardant added on the paper on both sides of the base paper. All relative to the 100 parts of unit weight, all chemicals are calculated on an absolute dry basis, and the ratio is kaolin: aluminum hydroxide is 40:60, styrene-butadiene latex: CMC is 10:0.1, ammonium zirconium carbonate 0.1 , OBA 0.2, calcium stearate 0.5, sodium polystyrene 0.05, water 50, the solid content in the coating is 68.9%. When coating, it is calculated on one side of the paper sheet, and the coating amount is 12g / m 2 , the speed of the coating machine is 250m / min. After drying, dehydration and setting treatment at 120°C, perform appropriate calendering tr...

Embodiment 2

[0019] The invention provides a flame-retardant release paper and its manufacturing process. The release paper is composed of base paper and a flame-retardant primer layer and a silicone oil layer coated on its outer surface in sequence. The film coating machine evenly coats the high solid content flame retardant primer coating with inorganic flame retardant added on the paper on both sides of the base paper. All relative to the 100 parts of unit weight, all chemicals are calculated on an absolute dry basis, and the ratio is kaolin: aluminum hydroxide is 45:55, styrene-butadiene latex: CMC is 12:0.1, ammonium zirconium carbonate 0.2 , OBA 0.3, calcium stearate 0.6, sodium polystyrene 0.1, water 50, the solid content in the paint is 69.4%. When coating, it is calculated on one side of the paper sheet, and the coating amount is 15g / m 2 , The speed of the coating machine is 220m / min. After drying, dehydration and setting treatment at 150°C, carry out appropriate calendering tre...

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Abstract

The invention discloses a flame-retardant release paper and its manufacturing process. The release paper is composed of base paper and a flame-retardant primer layer and a silicone oil layer coated on its outer surface in sequence. The surface film coating machine evenly coats the high solid content flame retardant primer coating added with inorganic flame retardants on both sides of the base paper. The surface of the coated paper is coated with a solvent-free silicone oil solution, and then cured by heating, regaining moisture at room temperature, finishing, slitting, and rewinding to form a finished product. The present invention has the advantages of simple process, low drying energy consumption, no release of organic solvent, safety and environmental protection, and reduced production cost, etc., and the paper quality is high. In addition, it can effectively improve the overall flame retardancy of the release paper product, so that it can reach The performance requirements of VTM‑0 flame retardant are met.

Description

technical field [0001] The invention relates to the technical field of papermaking, in particular to a release paper and a manufacturing process thereof, in particular to a flame-retardant release paper and a manufacturing process thereof. Background technique [0002] Release paper is also called release paper and anti-adhesive paper. It is widely used in people's daily life and industrial paper. Release paper generally has a three-layer structure. The first layer is the bottom paper, the second layer is the isolation layer, and the third layer is The layer is the release agent layer. Since the release agent has a certain permeability, if there is no certain barrier, the release agent will penetrate into the inside of the paper, resulting in poor curing and a large amount of release agent (too high cost), etc. Unfavorable factors, so it is necessary to cover a layer of isolation layer on the backing paper, and there is also a release paper without an isolation layer. The ba...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D21H27/18D21H27/28D21H21/14
Inventor 陈彦友陈家锵汤文华王明
Owner 江苏金大包装材料科技有限公司