One millimeter is equal to the line 100, and the line 14 is 0. 14 mm thick. This thickness is already a very thick one in the po film. Generally, the common 16 filament is the thickest, and the thin filament is generally 6-8 filaments.
The unit for measuring the thickness of plastic bags is generally expressed in silk and micron, and the formula is: 1 mm = 10 silk meter (dmm)= 100 Mi Hu (cmm, also called silk) = 1000 micron (umm). The state stipulates that the thickness of plastic bags in supermarkets should not be less than 0.025mm, that is, 0.25mm and 2.5m (also called 2.5m). Silk's English word is silk.
Matters needing attention in using plastic bags
There are three kinds of plastic bags used in the market: one can neither touch the skin nor put food, but can only be used to hold building materials; One is for clothes; There is also a kind that can be used to barely hold food. Some plastic products are added with stabilizers, and these stabilizers are mainly lead stearate, which will cause cumulative lead poisoning.
At present, the vast majority of plastic bags sold and used in the market are produced by small enterprises or family workshops in various places, and a considerable part of them are recycled plastic products. It is made of waste plastics, industrial wastes and plastic garbage discarded by medical institutions, and processed into food bags privately, and put into the market without disinfection.