Tianhua Plastic Industry developed an adhesive-free packaging film for environmental protection and safety

Wuhu City Tianhua Plastic Industry Co., Ltd. is responsible for the Wuhu City scientific research and development project ---`environmentally friendly adhesive-free food packaging film`, which has passed the expert appraisal organized by the Science and Technology Department of Anhui Province.

The project has a novel technology and many innovations. First, on the basis of the introduction of advanced equipment, the company has independently developed a major technological improvement, using special static mixers to make the raw materials in the membrane cavity for secondary plasticization, achieving a special quality effect; second, in the production process, The mutual pressure between each roller, the tension and the temperature of each heating section of the die are optimized to improve the peel strength of the adhesive-free composite film; the third is the structure of the main part of the silicone roller and its angle with the cooling steel roller Improvements have been made to ensure that the film is in contact with the substrate at high temperatures for a sufficient period of time to improve the film's composite fastness.

Through the improvement of the production process and equipment, the project realized the production of adhesive-free composite membranes and fundamentally solved the problem of solvent residues. The products were inspected by the Anhui Provincial Supervision and Inspection Institute and the Anhui Provincial Chemical Product Quality Supervision and Inspection Station. All technical indicators were superior to the national standard GB/T10005-1998 requirements. The new packaging material conforms to the provisions of the industry, product, and technology catalog that the state encourages and develops. It is well-received by users, has a broad market prospect, and has obvious economic, social and environmental benefits.