The film made by multi-layer coextrusion tape casting method can make a variety of materials with different characteristics compound with each other in the extrusion process, so that the products have the excellent characteristics of different materials and can complement each other in the characteristics, so that the products can obtain the performance and appearance of special requirements, such as oxidation resistance, moisture resistance, water resistance, permeability resistance, transparency It has the following mechanical properties: aroma retention, heat preservation, UV protection, anti pollution, high temperature cooking, low temperature heat sealing, strength, stiffness and hardness.

　　Web composite machine processing will be more diversified, functional configuration is more and more strong, such as glazing, die cutting, crosscutting, soft label cutting, etc. Accordingly, gravure press management system, remote technical support system will be more and more used.

　　Web laminating machine is a kind of machine that combines two or more layers of materials with adhesive. It is applied to tape casting film, air permeable film and non-woven fabric. The structure and adjustment mode of the compound machine are relatively simple, so it is very easy to operate, which can bring great convenience to people and greatly improve the working efficiency.