The so-called composite flexible packaging is a new type of high-performance packaging, which is composed of two or more kinds of materials with different properties. Plastic flexible packaging refers to the composite packaging of plastic film. It can combine the advantages of each layer of film and overcome their shortcomings

 

 

 

It can meet the requirements of a variety of products. With the progress of material processing technology, there are various kinds of packaging materials with different properties. Compared with other packaging materials, their main characteristics are as follows:

 

 

 

 

The characteristics of composite flexible packaging materials are as follows:

 

1. Light weight, transparent and soft;

 

 

 

2. It has good air tightness and heat sealing performance;

 

 

 

3. It can prevent moisture, air, ultraviolet, heat resistance and cold resistance;

 

 

 

4. It also has good dimensional stability, chemical stability, excellent chemical resistance and grease resistance;

 

 

 

5. It has tear resistance, puncture resistance, fatigue resistance, impact resistance, friction resistance and aging resistance

 

 

 

6. The machinability is excellent.

 

 

 

Plastic flexible packaging has the advantages of light weight, softness, less waste, easy processing and molding, small space occupation, low cost and high cost effectiveness (unit weight packaging volume and weight), which can meet the needs of most commodities, especially the needs of food packaging. Composite flexible packaging is mainly used in food, medicine, cosmetics, beverage and other products packaging, which has been developing rapidly in China in recent years. There are many kinds of substrates for composite flexible packaging, such as HDPE, MDPE, LDPE, BOPP, CPP, pet, PVC, PVCC, NY, etc.