Preparation method of degradable grease-proof paper for food packaging

Abstract

The invention relates to a preparation method of degradable grease-proof paper for food packaging, and belongs to technical field of food packaging. By the preparation method, unbleached bagasse is used as a raw material, and then thermal gelation property and cross-linking property of chitosan materials are used to form a dense adhesive film covering surface of bagasse fiber; the adhesive film can also be used as an adhesive viscose fiber with improvement of pulping degree to increase tightness, reduce porosity, and obviously improve oil resistance; the grease-proof paper prepared by the preparation method can not only reduce environmental problems caused by large-scale use of plastic packaging, but also improve safety of food and convenience of eating by using naturally degradable and safe raw materials, greatly reducing consumption of fluorine-containing compounds and reducing the cost; the grease-proof paper has the advantages of easy degradation and no pollution to the environment, and has great commercial value and broad application prospects.

Description

technical field [0001] The invention relates to a preparation method of degradable oil-proof paper for food packaging, which belongs to the technical field of food packaging. Background technique [0002] Greaseproof paper refers to a type of paper that resists oil penetration and absorption. Its main feature is that it can meet the requirements of protecting products, being easy to carry, promoting sales, etc., and reducing the penetration of oily substances. In order to obtain the effect of oil and oil resistance, people will use plastic packaging materials such as polyethylene, polypropylene and polyvinyl chloride to make films, but these film materials are difficult to degrade or degrade extremely slowly in nature. Despite their ability to resist oil penetration, the waste of these plastic packaging materials is difficult to recycle and causes great pollution to the human environment. But oil-proof paper is not the case. The paper is easy to degrade, environmentally fr...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention: Aiming at the problem that the fluorine-containing compounds used in the