Green and environment-friendly multilayer composite packaging material and preparation method thereof

Abstract

The invention belongs to the technical field of composite packaging materials, in particular to an environment-friendly multilayer composite packaging material and a preparation method thereof. The environment-friendly multilayer composite packaging material comprises a first bamboo pulp paper layer, a cotton net layer, a second bamboo pulp paper layer, a glutinous rice glue layer, an aluminum foil layer and a glass film layer that are sequentially arranged from one side to the other side, wherein the glutinous rice glue layer comprises the following components in parts by weight: 1 part of starch, 3 parts of glutinous rice, 1 part of a thickening agent and 95 parts of water, the thicknesses of the first bamboo pulp paper layer and the second bamboo pulp paper layer are 200-300 microns, the specification of a cotton net in the cotton net layer is 5-20 meshes, and the thickness of the aluminum foil layer is 5-10 microns. The first bamboo pulp paper layer, the cotton net layer and the second bamboo pulp paper layer are bonded through the glutinous rice glue to form the composite base layer, the aluminum foil layer is sprayed on the composite base layer, and the glass film layer is plated on the composite base layer, so that the material is harmless to human health and good in environment-friendly effect.

Description

technical field [0001] The invention relates to the technical field of composite packaging materials, in particular to a green and environment-friendly multilayer composite packaging material and a preparation method thereof. Background technique [0002] At present, with the popularity of take-out food, the requirements for food packaging materials are getting higher and higher. Compared with ordinary items, take-out food requires packaging materials that can be waterproof, heat-retaining, not deformed or deteriorated at high temperatures, and do not emit harmful substances to the human body. Harmful substances are also required to be easily degradable and harmless to the environment. The current plastic bags do not meet the above requirements, and the current paper packaging materials cannot be separated from the application of paraffin. Paraffin will also decompose at high temperatures and be eaten by the human body. And it will accumulate in the human body, long-term use...

AI Technical Summary

Problems solved by technology

[0007] Aiming at the deficiencies of the prior art, the present invention provides a green and environment-friendly multi-layer composite packaging material and its preparation method, which solves the problems in the prior art that the cheap food packaging materials are not environmentally friendly and the environmentally friendly packaging materials are not easy to use

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