At present, China's protective film production enterprises have reached more than 1,500, more than 3,000 varieties, has become one of the fastest growing key industries in China's chemical industry.
The application of protective film has penetrated into various fields of the national economy. Especially for the packaging industry, the shape of the protective film is everywhere, and it is omnipresent. In many cases, the protective film can effectively replace some mechanical joints and adhesive stitching at the interface, which provides a very effective way for simplifying the process, saving energy, reducing costs and improving economic efficiency in the packaging production process.
As protective film plays an indispensable behind-the-scenes role in the entire packaging industry, it has a profound and far-reaching impact on the technological advancement of packaging and related industries as well as product development and renewal. Therefore, the research, development and production of new types of protective films with more guaranteed quality and superior performance have become the research fields and research activities that the packaging industry is paying more and more attention to.
The protective film is prepared by using a binder as a main agent and various additives such as a curing agent, a plasticizer, a filler, a solvent, a preservative, a stabilizer and a coupling agent.
There are many classification methods for protective film. According to the application method, it can be divided into thermosetting type, hot-melt type, room temperature curing type, pressure sensitive type, etc.; according to the application object, it can be divided into structural type, non-configuration type or special glue; Water-soluble, water-based, solvent-based, and various solid-state types.
The sustained and rapid development of the world's industrialization has almost driven the continuous advancement of the entire industrial chain. As a separate industry, the protective film industry is also a special auxiliary industry for the packaging industry. Its development status and future development direction have become the focus of attention.