The full name of INS is INSert-Mould-Decoration, which refers to putting a blister-shaped film into an injection mold for injection molding. The INS process is a new process derived from the IML process. As countries have higher and higher requirements for ecological and environmental protection, the INS process has been widely used in modern advanced manufacturing industries, such as automotive interiors, home appliance decoration, and intelligent digital housings, and has gradually replaced environmentally polluting paint and plating Surface treatment process.

The plastic parts made by the INS process have rich surface expressiveness, which can be high-gloss, matte, metallic, wood grain, leather grain, and three-dimensional. At present, there are thousands of types of INS membranes. For the research and development of new products, there is a lot of space for the choice of appearance performance methods. Because the surface of the INS process can achieve a metallic texture, but it does not shield the signal, and because 5G requires signals that are far greater than 4G, in order to make 5G smart digital have a metallic texture and have good signal transmission functions, INS has become a new generation of intelligence an indispensable process for hardware.