Long-acting barrier quality-guaranteeing food packaging material and manufacturing method thereof
A technology of food packaging and production method, applied in the field of packaging materials, can solve the problems of high product cost, low friction coefficient, low static electricity, etc., and achieve the effects of prolonged shelf life, excellent wear resistance, and low friction coefficient
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[0018] A long-term barrier and quality food packaging material. The material is divided into nine or seven layers, and the level of change is based on customer requirements. The first layer: outer layer, PE layer, the function is to protect the integrity of the printed pattern, adhesion, thickness 12μ-15μ, the second layer is a paper layer, the paper layer is white kraft paper or cardboard, weight 50-80 grams , Its function is to support and print patterns to reflect customer quality and culture. The thickness of the paper layer is 60μ-90μ. The third adhesive layer, polyurethane water-based glue, is used to bond the paper layer and the PVDC film together. The fourth layer of PVDC coating layer is used to block the entry of various gases and the outflow of products to ensure product quality. The thickness is 2μ-6μ. The remaining layers are composed of the following five-layer or three-layer co-extruded film structure. The overall thickness is 50μ-90μ: 1. PE / white PE / white PE / bla...
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