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Paper plastic bag characteristics Paper-plastic bag is a compound bag, which has two sides. On one side is a plastic film that cannot soak liquid and gas, and on the other side is a paper that can penetrate and discharge sterilizing factors. Advantages: 1) Transparent, you can see the contents of the bag 2) Excellent anti-seepage function 3) The size can be customized 4) Microbial shielding function Disadvantages: 1) The sterile paper plastic bags stored in clinical departments are prone to wrinkles and sealing cracks 2) When packing hard things, the dryness is poor, and water droplets remain on the inner plastic surface 3) Sharp tools are easy to Pierce the packaging of paper plastic bags 4) Can be used for lower exhaust type sterilizer

Plastic is a great invention of mankind. Without plastic, without plastic products, there is no With modern civilized life. Plastic can be seen everywhere in People's Daily life, it seems that Because it's so common that people don't see it. Apparently, most of us About 70 percent of people have a poor understanding of the properties of plastic products Myths, such as plastic exposure to heat can release a variety of advanced carcinogens. So at this time, there will be a lot of old iron began to fear, they do not use plastic cup hot drink, do not use plastic lunch box hot food, let alone use plastic utensils to heat food, the fact is really so "horrible"? Today xiaobian on all over the information, to small partners a little "confusion". There are several kinds of plastic products: No. 1 PET (polyethylene terephthalate), 90% of plastic bottled drinks use this material as bottle material, such as the plastic bottles of mineral water, fruit juice and carbonated drinks we usually drink are made with it, also known as "treasure bottle". PET is non-toxic, and the country has strict standards for PET raw materials used in beverage bottles. Does PET react or release toxic substances at high temperatures? Indeed, it is possible that PET hydrolysis will occur at 120℃, but the hydrolysis rate is less than 0.01%. Summer temperatures in cars are high, perhaps even 70 degrees Celsius in some areas, but apparently not high enough for PET to decompose significantly. No. 2 HDPE (high density polyethylene), detergent, shampoo, bath lotion, edible oil, pesticides and other containers are mostly made of HDPE. The containers are mostly opaque and feel like wax. HDPE can be used for food packaging, such as plastic wrap, plastic bag applications. Clingfilm itself is also non-toxic, but it will soften or even melt at a higher temperature, so avoid using it at 100℃ above the boiling water temperature. If you heat food in the microwave oven, do not cover the surface with clingfilm No. 3 PVC (polyvinyl chloride), mostly used to manufacture water pipes, raincoats, schoolbags, building materials, plastic films, plastic boxes and other utensils, because it is a kind of high-temperature resistant plastic, can not be used in high temperature places. PVC production uses large amounts of plasticizers (plasticizers, such as DOP) and heat stabilizers containing heavy metals, which are considered toxic. So PVC is rarely used to pack food or medicine. No. 4 LDPE (low density polyethylene), widely seen plastic bags are made of LDPE Should be