With the improvement of people’s living standards, food packaging bags also play a very important role in people’s lives. Shenzhen yltpacking packaging, as a packaging
1, Inspection of raw materials:a. Thickness of film (aluminum foil) (pressGB 6672progress), tensile strength&Elongation(according toGB 13022-91conduct), wetting tension(according toGB 10003-88conduct), oxygen permeable/moisture permeability(according toGB1038/ 1037conduct),
In flexible packaging printing, the phenomenon of sticking on the reverse side of the printed matter often occurs, that is, when the printed matter enters
In the food packaging bag printing industry, we often hear the statement of the thickness of silk. What is the “silk” mentioned here? China YLTpacking
Commodities must go through packaging, transportation, sales and other links in the entire circulation process, and each link requires packaging materials to have corresponding characteristics.