Papery food packaging bag and preparing method

Abstract

A food packing bag prepared by paper material has paper material characteristic as the follows: paper glueing degree is 8-10g / m2 paper burst is not less than 130kpa; paper tensile strength is as dry longitudinal tensile force of not less than 40N, dry horizontal tensile force of not less than 25N, wet longitudinal tensile force of not less than 15N and wet horizontal tensile force of not less than 10N.

Description

technical field [0001] The invention relates to food packaging technology, in particular to a paper food packaging bag and a method for making the paper food packaging bag. Background technique [0002] At present, the vast majority of food packaging materials in people's lives are plastic bags. Whether it is a shopping mall or a farmer's market, the use of plastic bags is extremely common, and it is common for plastics to be used as the outer packaging of commodities. We know that plastic is an organic material. Under certain medium environment and temperature conditions, some polymer monomers and some additives will dissolve, and it is inevitable that a small part will be transferred to food, which will be harmful to human health after eating. cause adverse effects. People discard plastic bags after using them, because plastics are difficult to rot or degrade, which not only affects environmental sanitation, but also causes great pollution to the environment for a long ti...

AI Technical Summary

Problems solved by technology

In order to replace plastic bags with paper bags, the inventor has carried out extensive research and a large number of tests on paper bags in the prior art, and found that the paper bags in the prior art not only have the problem of low production efficiency, but also can be used as food packaging bags. The paper still has the problem of low tensile strength. Of course, the tensile strength here includes both the dry tensile index and the wet tensile index, and it must be tested separately from the longitudinal and transverse directions.