When using food grade packaging coated paper for hamburger packaging, its oil resistant properties are taken into account. It is 80 degree edible vegetable oil that does not leak for 10 minutes. When used in paper cups, take their waterproof properties. When used in automatic packaging machines, its heat sealing properties are taken.
Ordinary paper is composed of wooden fibers and has strong water absorption, so everyone knows that paper absorbs moisture and is afraid of it. It uses a coating machine to evenly coat the surface of the paper with PE plastic after hot melting, forming a very thin layer of PE film. PE white plastic paper has waterproof and moisture-proof functions because it has a layer of PE film on top.
Food grade packaging coated paper is prone to curling after being cut into flat sheets. Printing factories usually need to print individual sheets of paper and then apply double-sided glossy adhesive to improve the surface smoothness and grade of cake bags; The glossy adhesive paper can be glued on a single sheet or on a roll.
Food grade packaging coated paper is usually classified into plastic coated paper and non plastic coated paper; Organosilicon coated paper and non silicon coated paper can also be classified according to their silicone coating. Different uses have different characteristics: when used in cake bags, take their burst resistance characteristics. Therefore, coated paper is a common and commonly used type.