Light-proof food packaging film
A technology of food packaging film and shading glass, applied in packaging, wrapping paper, household packaging, etc., can solve the problem that food packaging film cannot meet packaging requirements, and achieve the effect of beautiful and generous shading performance and simple structure
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[0010] The present invention will be further described now in conjunction with accompanying drawing. These drawings are simplified schematic diagrams only to illustrate the basic structure of the present invention in a schematic way, so they only show the components relevant to the present invention.
[0011] Such as figure 1 A light-shielding food packaging film shown has an aluminum base layer 1 covered with a casting polypropylene layer 2, a printing layer 3 is attached to the casting polypropylene layer 2, and a printing layer 3 is attached to the printing layer 3. It is covered with a brown light-shielding cellophane layer 5 , and there is a polyethylene layer 4 under the aluminum base layer 1 . The printing layer 3, the casting polypropylene layer 2, the aluminum base layer 1, and the polyethylene layer 4 are bonded and connected by an adhesive. The brown light-shielding cellophane layer 5 is not easily stained with dust and has a certain light-shielding performance. T...
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