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Comparison between 5th and 3rd floors
The barrier layer in a 5-layer composite film is usually located at the core,isolating it from moisture in the atmosphere.Because the barrier layer is loca..
Measures to prevent bubbles from appearing in dry composite films
1.Strengthen the testing of various raw and auxiliary materials(including films,inks,adhesives,solvents,etc.),strictly control ..
1、Production procedures
1.Preparation:Install horizontal heat sealing knife,bottom heat sealing knife,reinforced heat sealing knife,and install punching device.
2.Thread the film,set the..
1、Vertical bag delamination crease
1.Phenomenon description
A vertical milk powder bag with a structure of PET12/VMPET12/PE80 was used in supermarkets for six months,and non ink layer de..