Capsule tablet packaging PVC

Aluminum coating is a kind of composite soft packaging material formed by coating a very thin layer of metal aluminum on the surface of plastic film with a special process. The most commonly used processing method is vacuum aluminum coating, which is to melt and evaporate the metal aluminum under high vacuum conditions through high temperature, so that the vapor precipitation of aluminum is deposited on the surface of plastic film, so that the surface of plastic film has a metallic luster. Because it has the characteristics of both plastic film and metal, it is a cheap, beautiful, excellent performance, and practical packaging material.
At present, the most widely used aluminized films mainly include polyester aluminized film (VMPET) and CPP aluminized film (VMCPP). The role of aluminum coating on the film surface is to block light and prevent ultraviolet radiation. It not only extends the shelf life of the contents, but also improves the brightness of the film. To a certain extent, it replaces aluminum foil, and also has cheap, beautiful and good barrier performance. Therefore, aluminum coating is widely used in composite packaging, mainly used in the packaging of dry and puffed food such as biscuits, as well as the external packaging of some medicines and cosmetics.
Folding (1) greatly reduces the aluminum consumption, saves energy and materials, and reduces the cost. The thickness of aluminum foil for composite is mostly 7~gpm, while the aluminum layer thickness of aluminized film is about 0.05n, the aluminum consumption is about 1/140~1/180 of aluminum foil, and the production speed can be up to 450m/min.
(2) It has excellent folding resistance and good toughness. There are few pinholes and cracks, and there is no kneading and cracking. Therefore, the barrier to gas, steam, smell, light, etc. is improved.
(3) It has excellent metallic luster, and the light reflectivity can reach 97%; The color film can be formed through coating treatment, and its decoration effect is better than aluminum foil.
(4) Shielded aluminum plating can be used to obtain any pattern or transparent window to see the contents.
(5) Aluminum coating has good conductivity and can eliminate electrostatic effect; Its sealing performance is good, especially when packaging powder products, it will not pollute the sealing part, ensuring the sealing performance of the packaging.
(6) It has good adaptability to post processing such as printing and lamination.
Because of the above characteristics, the aluminized film has become a new type of composite film with excellent performance, economy and beauty, which has replaced the aluminum foil composite material in many aspects. It is mainly used for vacuum packaging of flavor food and agricultural products, as well as packaging of drugs, cosmetics and cigarettes. In addition, aluminized film is also widely used as bronzing material and trademark label material in printing.