The main development direction of PET film plastic packaging industry:

The development status of the world's plastic packaging products has the following characteristics: the new type of polyester film packaging has a more development way; the new type of degradable plastic has been paid attention to; the foamed plastic is moving towards zero pollution. At that time, the main development of the plastic packaging industry was in the following directions:

1. The technical level of high-barrier and multi-purpose PET film is continuously improved. Its soft plastic packaging material has become a popular domestic development in recent years, among which high permeability, multi-functional plastic wrap, aseptic packaging film, etc. are developing rapidly. As bag making and printing technology has reached a new level, it has entered the era of colorful transformation, which has promoted the development of flexible plastic packaging products to a deeper and higher level. p />

2. The development of multi-layer co-extrusion technology has changed the product layout of functional films and containers. With the increasing voice of environmental protection, under the premise of meeting the packaging function, it is necessary to minimize the amount of waste generated. Co-extrusion packaging film, its process equipment investment is low, the production cost is low, the adaptability is strong, the operation is convenient, and there is no question of environmental pollution. Therefore, the world's co-extrusion technology is developing rapidly. The data shows that co-extrusion packaging films in developed countries account for about 40% of all flexible plastic packaging films, while China is only about 6%. Obviously, the ratio of the two is very unreasonable. The development of co-extruded packaging films will also change the product layout of multi-purpose films, which are suitable for food packaging such as beverages, milk, and fresh meat.

3. The market prospect of fresh-keeping packaging film for fruits and vegetables is broad. China is the world's largest producer and seller of fruits and vegetables, but about 30% of the water is lost in the process of storage, transportation and sales. Improper packaging is one of the reasons for the pedantic loss of fruits. Although the physiological characteristics of different fruits are different, dehydration, discoloration, staleness and pedanticness are all problems that exist together. Therefore, in-depth research to restrain the metabolic process, reduce the consumption of nutrients, and maintain the flavor quality of the fruit is an important topic of fresh-keeping packaging. At that time, polyethylene film and polypropylene film were the most widely used packaging materials for fresh fruits and vegetables.

No matter what kind of plastic packaging is used, it must meet the needs of green packaging: reduce waste pollution; environmental protection problems in solvent disposal; recycling problems. Green packaging that meets the needs of environmental protection and is non-polluting will receive more and more attention from the society. Therefore, we should vigorously develop green packaging, do a good job in the disposal of packaging waste and the recycling and reuse of resources, and continue to develop the needs after completion.