Environment-friendly isolation paper and preparation method thereof

Abstract

The invention discloses an environment-friendly release paper and a preparation method thereof. The environment-friendly release paper includes a base paper layer and a pre-coat layer and a release layer coated on its surface in sequence. The raw materials of the base paper layer include: inorganic powder materials, wood Powder, high molecular polymer, lubricant, foaming agent, active agent, anti-sticking agent; The raw materials of pre-coat paint include water, pigment, dispersant, adhesive, thickener, surfactant according to weight parts; isolation The raw materials of the layer coating according to weight include: water-based high molecular polymer, adhesion promoter, photoinitiator, and leveling agent. The invention has low cost, and the prepared release paper has the characteristics of waterproof, moisture-proof and high strength. It does not use polyolefin materials and solvent-based release agents, is pollution-free, easy to recycle, and does not cause harm to the environment. The used pre-coating paint is solid High content, high viscosity, fast drying speed, high production efficiency, low energy consumption, good film-forming performance of the isolation layer coating used, suitable for advanced curtain coating methods.

Description

technical field [0001] The technical field of paper processing of the present invention is specifically an environment-friendly release paper and a preparation method thereof. Background technique [0002] Traditional release paper is composed of base paper and release layer. The preparation process is to coat a layer of release agent on the surface of the base paper. The release agent used is generally polyethylene. No matter the release paper is produced by coating the film, polyolefin must be used. This type of polyolefin is coated on the paper. After finishing, it is very difficult to treat paper with traditional recycling methods. In addition, due to the low biodegradability of polyolefin products, it may also cause harm to the environment. [0003] Release paper, also known as silicone oil paper, anti-adhesive paper, mainly plays the role of isolating sticky objects, such as tape. It generally needs to be stripped and discarded when used. Release paper is generally ...

AI Technical Summary

Problems solved by technology

There is a plastic release paper, that is, a layer of release agent (mainly silicone oil) is coated on the surface of the coated paper. Due to the use of polyolefin products, it is very difficult to treat paper with traditional recycling methods. In addition, due to the use of polyolefin products Low biodegradability and may also be harmful to the environment

Plastic-free release paper mainly includes glassine, CCK and other specially treated release papers. This type of release paper has the advantages of high smoothness, good oil resistance, and less release agent consumption during coating. The price is expensive, the supply of goods is in short supply, and it is difficult to meet the needs of production and economic benefits

The low-gram weight release paper for postal express delivery also belongs to the category of plastic-free release paper. This type of release paper has high quality requirements and a large market demand. However, there are not many products with good quality and high production efficiency on the market.