re:Color bag production process

Color bag production process
 
Into the film for printing (each color has a plate roll, the roll is engraved engraved carving), in the printing of ink is non-stop flow, because the ink will be condensed, in the ink printing and film printing Inlaid with a scraper, the scraper is the plate rolled out of the place to scratch the ink, so concave into the board roll can be printed. If the blade is stained with dust, there will be strip of ink pollution. For the dot-like ink pollution phenomenon is because the ink in the rolling printing ink splashed on the packaging film caused by dot-like ink pollution.
Film printing after the start of the composite, for my company's film commonly used wet and dry compound method, that is, a good film coated with glue into a bake to bake 2 minutes and then PE and composite, composite tension Is 5.6kg. Our company uses a two-layer composite bag.
Curing: Adhesive glue on the composite film after curing, curing effect is mainly to glue can firmly stick, curing generally cured at 50 ℃ for 24 hours. In fact, is a good composite film placed in 50 ℃ environment for 24 hours. If the time and temperature does not meet the requirements of the membrane will appear non-tight phenomenon.