HBzhan Content Introduction: Faced with the rapid development of the plastic processing industry, the shortening of the application of new materials, the development cycle of new products, and the acceleration of product updates, the corresponding national and industry standards are lagging behind in their formulation and updating, which highlights the contradiction. Some product standards have cross industry and multi port management, resulting in confusion in the formulation and approval of standards, and confusion for enterprises; Especially for some food contact plastic product enterprises, they are unable to obtain QS certification in a timely manner due to the lack of standards.
　　
The production enterprises have insufficient testing equipment, weak testing technology capabilities, and lagging laboratory construction, which cannot meet the needs of the rapidly developing plastic processing industry. Many enterprises lack the ability to perform online product testing, automatic inspection devices, and key project performance testing, resulting in delayed discovery of quality problems, significant losses for the enterprise, and low market competitiveness.
　　
differentplastic productsDifferent ingredients will be used, and there will be numerical markings at the bottom of the plastic bottle. Each number represents a different plastic material. When purchasing, be sure to check whether the bottom label is "pp" or "pc" or the numerical value ⑤ or ⑦. These numerical values correspond to the plastic material codes as follows:
　　
1. PE polyethylene, commonly used as cling film, plastic film, etc. Harmful substances are produced during high temperatures.
　　
2. PS polystyrene, commonly used in bowl shaped instant noodle boxes and fast food boxes. Don't use the microwave to cook instant noodles.
　　
3. HDPE high-density polyethylene, commonly used in white medicine bottles, cleaning products, and bath products, should not be recycled.
　　
4. Other types of PCs, such as water bottles and space cups. It is easy to release toxic substance bisphenol A, which is harmful to the human body.
　　
5. PVC polyvinyl chloride, commonly used in raincoats, building materials, plastic films, plastic boxes, etc. It can only withstand heat up to 81 ℃ and is prone to producing harmful substances at high temperatures.
　　
6. PET polyethylene terephthalate, commonly used in mineral water bottles, carbonated beverage bottles, etc. Heat resistant to 70 ℃ and easily deformed, with harmful substances melting out of the body.
　　
7. PP polypropylene, common soybean milk bottle, yogurt bottle, juice drink bottle, microwave oven lunch box. The melting point is as high as 167 ℃, making it a plastic box that can be placed in a microwave oven.
　　
The plastic processing industry lacks research in ecological, environmentally friendly, and green production aspects. Some packaging companies do not attach enough importance to the safety of packaging products, and extensively use benzene soluble ink printing and solvent based adhesive composites. Many small enterprises lack the ability to control residual solvents in composite film products, and QS certification quality is not high. There is a lack of targeted development and research on environmental protection technologies or products suitable for plastic flexible packaging printing composite film enterprises of different scales and types; Some small-scale enterprises do not attach enough importance to energy conservation and emission reduction, and lack awareness and improvement measures for environmental protection and green development; The recycling and utilization rate of waste plastics in China is only 26%, far behind the 30% to 70% in developed countries.
　　
currently in ChinaplasticMost of the various functional resins and special grade resin materials urgently needed in the processing industry rely on imports. Most of the additives, including fluororesin defogging agents for agricultural films, pesticide resistant anti-aging agents, external coating defogging liquids, processing release agents, dispersants, and halogen-free flame retardants, are also imported.