The food packaging which you can do with the multilayer thermal seal possible packing material and the multilayer thermal seal possible packing material, and packing by the multilayer thermal seal possible packing material method

摘要

(57) Abstract This invention, regards, the multilayer thermal seal possible packing material for especially food packaging. In addition, purpose of this invention is method of food packaging and packing which consist of the above-mentioned packing material, and use to packing this material. The packing material (1), the center which consists of the fibrous material like the cardboard (3) and, consists of the polymer characteristic filter layer (4 and 5) which prevents the fact that one product deteriorates at least and the polymer characteristic thermal seal layer (2 and 7) which is added desirably on both sides of the packing material. According to this invention, the thermal seal layer (7) which forms the inside surface of packing which is sealed up in order to cut off the product from the light, has been blended the extinction characteristic pigment like carbon black. Furthermore, the layer of that is administered the coloration of the gray which is similar to the aluminum foil by in thermal seal layer (7) blending the white pigment like titanium dioxide. The density polyethylene (PE-LD) is enabled low in thermal seal layer, for example ethylene vinyl alcoholic copolymer (EVOH) and such as polyamide (PA) oxygen and aroma filter layer (4) can be inserted thermal seal layer and the cardboard (3) between.