PE, PO, PP, OPP bag material difference

PE, PO, PP, OPP bag material is the difference between all countries in the constraints, the use of plastic bags, but for retailers, plastic bags are still indispensable necessities of a business. The current domestic market, the businessman custom-built plastic bag remains widespread. What about retailers, how to identify the make to order the raw material of plastic bags? High pressure bag and low pressure bag. This two kinds of common commercial bag, belong to the PE material bag, but they have different characteristics. The former feels soft, light gloss, more robust ( Resilient) And, therefore, the finished bag, handbag, industrial packaging need often use this raw material. The application range of the low pressure bag mainly shopping malls, supermarkets, food industry, such as the low pressure bag, such as restaurant kitchen after use and supermarkets sell consumers paid vest bag, is this kind of raw material. Its appearance characteristic is, stretching resistance, occasionally it is not easy to pull out of shape. Hardness is strong, not easy to be blunt objects to wear. How are the raw materials of PE, respectively the two bags? One of the most simple solution is like tearing a line, pull open the bag. If pull open place with a white mark, it shows that it is lv bag, no white mark, is the high pressure bag. If businesses ranging from low pressure bag, high-pressure bag, when doing the experiment can experience significantly high pressure bag when he will have more resistance. Most transparent PP bag, OPP bag, the two bag is the highest, in the transparency of all the plastic bag, therefore, are often made into clothes, gift packaging. Differences of the two is that the PP bag is harder, lubrication, feel with the hand shake, a big sound. Generally will not leave the trace of folding plastic bags, but after PP raw material plastic bag half, but would like paper crease the same mark. OPP bag transparency is very high, but the difference is, OPP, resulting in more brittle, because it's brittle, so it is easier to damage, but the damage is on the basis of the already cracking-off, made the raw material of plastic bags, once appear, one of for, it is easy to pull to open. The above four kinds of raw materials, it is the most common on the market at present, difference method is more simple. Custom make the quality of plastic bags, of course, not all get the answer from these few simple solution, from manufacturer to word of mouth, retailers can choose honesty plastic bag manufacturers. PE / PO / PP / CPE / PPE / OPP / PVC / EVA