Beverage suction nozzle bag with what material the most safe and non-toxic

　　Used for packing of milk, wine and other liquid nozzle bag special printing, is a form of packaging in recent years, especially with the development speed of high temperature cooking liquid packaging bags and faster, such as black and white milk PE film packaging bag. So, how to judge the quality of liquid packaging film is good or bad?

　　（1） nozzle bag packaging film of the static and dynamic friction coefficient is low, generally between 0.2 - 0.4, filling and packaging machine so as to quickly filled in the high speed filling; high friction coefficient, low packing design of the filling speed and filling in a short period of time will be less.

　　（2） the milk packaging film surface printing fastness is better, the heat charge and resistance to pasteurization irrigation, but also to ensure that the ink off does not occur at - 20 C storage environment. Because of （1） and （2） are the two performance of contradictory, this should be the correct choice of ink and color masterbatch.

　　（3） has good heat sealing printability, able to successfully fuse bag. If the formula is too sticky resin, heat sealing resin melt will stick in the heat sealing blade; used in the formulation of slippery agent too much, then the heat sealing strength is not high, easy to open. Fully meet the three requirements is a good liquid packing bag.

　　（4） to acid and alkali resistance, impact resistance and other.

　　（5） sterilization and high temperature resistant film must be able to withstand 121 degrees, 30 minutes.

　　（6） drink nozzle bag must have enough strength, will not be out in force under the high speed automatic filling machine.