Composite Flexible Packaging Materials Development Trend in China

Develop environmentally friendly composite soft packaging film. At present, the world is recognized as environmentally friendly PET materials, and it can be recycled and reuse. Due to the improvement of people's living standards, the life of the racks of supermarket foods will increase, and the amount of BOPET will continue to increase, and it will be conducive to recycling and use.

Flexible plastic packaging membrane develops in the direction of dedicated functionalization. For example, high -resistant materials are becoming a soft packaging material for hot -spiced development. Commonly used are PVDC materials, nylon packaging materials, EVOH materials, inorganic oxide coating film, etc. The role of shelf life. High -resistant composite materials will continue to increase market capacity. In the future, high -resistance film, which has a simple processing, strong resistance to oxygen, strong water vapor performance, and the advantages of racking the life of the shelf, is the mainstream of the soft packaging of supermarket food in the future. Multi -layer composite, mixed, co -agglomeration, and steaming technology have also developed extremely rapidly in the soft packaging industry.

Flexible packaging materials develop towards thin. The thin film of the film refers to the thickness of the thinning material and the various packaging performance indicators can still fully meet the requirements of the packaging. There are three main methods that can achieve this: First, develop new materials, use PEN as raw materials, the PET strength produced by PET can be increased by 3.5 times, and the thickness of the film can be reduced by 1/3 than the BOPET, which can meet the requirements of the BOPET film. The second is to make a soft packaging film with a composite material with Nano inorganic and polymer. Nano inorganic and high -polymers composite materials can simultaneously improve the strength and toughness of the film, which plays an important role in the thin shape of soft plastic packaging. Compared with the thin film made of pure polymer, the strength and toughness of the film into the film into the film are increased by 50%. The third is to use multi -layer composite packaging materials to improve the comprehensive performance of soft packaging materials, reduce the amount of plastic on soft packaging, reduce environmental pollution and save resources.