The following editor will briefly introduce the difference between these two raw materials: the brand-new material of plastic bags, extracted from petroleum, without any late-stage man-made After reprocessing, the particles are milky white, crystal clear and transparent, without any impurities, and have particularly good physical properties and are easy to process. Raw material identification is a basic ability that every plastic bag manufacturer should have.
There are two types of raw material substitution for plastic bags: new materials and recycled materials. Then it is cut and melted at a high temperature to make plastic pellets. The price of new materials is higher than that of recycled materials. It is often used in daily life and industry. It cannot be used for food packaging, that is, it cannot be used as a food packaging bag. Recycled materials of plastic bags come from a wide range of sources, and the scope is relatively large and chaotic, mainly from the production of waste materials for Wholesale cling wrap film convenient bags, domestic waste plastics, various packaging bags, etc.
There are many kinds of waste materials based on recycling, and the colors are rich. The products that come out do not have a certain degree of health and safety protection, and the product feels relatively rough. The final pellets produced are also different in color, do not contain luster, and are far from the new material pellets. For many years, ExxonMobil, BASF and other top 500 companies in the United States have been designated to supply raw materials.
There are two ways to use pure raw materials in my country, one is the major domestic petrochemical companies, and the other is imported. That is to say, plastic bags made from new materials are more expensive than plastic bags made from recycled materials. are made of new materials. The waste materials generated are recycled before the next step is sorted. Plastic bags and food bags have passed ISO9001. The production site has 7S control and strict quality control.
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