China's economy is developing at a high speed, and the quality of life of the people is effectively improved. The Chinese packaging industry, which is benefited by this benefit, is also making great progress. The upward trend cannot be underestimated. The development of the packaging industry will gradually implement industrialization and vigorously develop and develop packaging basic industries. Plastic film is the most widely used type of packaging material. The popularity of plastic film is mainly due to its characteristics and uses.
Plastic films are commonly used in food packaging, electrical product packaging, daily necessities packaging, apparel packaging, and the like. A common requirement for these packages is that the plastic film must be color printed.
In the aspect of food packaging, the plastic film is also subjected to a multilayer composite or vacuum aluminum plating process, and the process is complicated. Therefore, the plastic film is required to be high: the surface free energy is high, the wet tension is large, and the like, and the printing ink, the adhesive or the aluminum alloy layer and the plastic film are firmly bonded in the future. The requirements for plastic film are different in different packages. For example, in the production process of plastic film winding and high-speed packaging, the surface of the film is required to have a certain frictional property to prevent slippage; and when it is used for packaging of electrical appliances and electronic products, the film is required to have certain antistatic properties.
In addition to packaging, plastic film has many other features:
1. The plastic film has superior winding force and retracting property, and the product can be fixedly bundled into a small unit;
2. The plastic film has primary protection, providing surface protection for the product, achieving dustproof, waterproof and the like;
3. The plastic film has compression fixation, which effectively prevents misalignment and movement of the product during transportation;
4. It is cost-effective and reduces the cost of use.
The high-frequency utilization rate of plastic film fully reflects the development speed of China's packaging industry. For a long time, the total output value of China's packaging industry will maintain positive growth. The high utilization rate and rapid development of plastic film will also strongly promote the long-term effective growth of China's packaging industry.
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