Knowledge about aluminum foil composite film production quality inspection is introduced

aluminum foil composite film has good stability and metallic luster, and a lot of good packaging performance, beautiful appearance generous, seize person eyeball, is applied to product packaging from all walks of life in the life. It as a kind of packaging products, protection is undoubtedly one of the basic functions, should be strictly on the production quality, in order to avoid to produce a product quality problems, and appeared in the market. And the corresponding products quality inspection is also very important.

in the first test to produce aluminum foil composite film, we can feel directly to its printing quality problems, such as whether there is a wire drawing, fog version, version, the phenomenon such as printing, and printing on the surface of two kinds of color if there is a third color joining together.

second, observe the printing quality of products, it need to take a test of its material quality. A standard quality of products on the materials should be odourless and no peculiar smell, is also need to check bags transparency, clarity, even without impurities.

moreover, aluminum foil composite film visual performance in the protection function of commodity is its degree of stability and heat sealing strength, we can aim directly at hand to test products, sealing side, made of nylon and high pressure film composite products in general it is hard to tear by hand can be used to install the heavier quality products, the products are made of OPP heat sealing membrane easy tear, only some lighter quality products.

at the same time, in the product after the tear, depends on its cross section shape and structure, if the tear from it in the middle of the heat sealing of uniform, represents the aluminum foil composite film sealing performance is poor; And if the tear from sealing side, heat sealing quality is better.