Hangzhou octagon sealing bag: why does the ink layer fall off in the aluminum foil bag
One of the most common problems in the packaging of aluminum foil, such as the falling off of the ink bag, is the most common problem in the packaging of aluminum foil?
Quality problems:
The ink layer of the drug packaging bag in the aluminum foil bag fell off
Cause analysis:
packaging
The protective layer on the surface of the aluminum foil bag can not only prevent the aluminum foil bag from oxidation and corrosion, but also protect the printing layer on the surface of the aluminum foil bag from abrasion. If the adhesion or heat resistance of the protective layer is poor, the protective effect of the ink will be weakened when it falls off in the process of heat sealing or other heating, so that the ink layer is easy to be worn and fall off. It can be verified by the adhesion of protective layer and heat resistance test of protective layer.
Improper control of printing process - if the printing process is improper, the adhesion and strength of the ink on the surface of aluminum foil will be reduced, and the ink will be easy to wear or fall off after the protection layer is missing.
Experts' suggestions on sealing bags with eight sides:
Pay attention to the testing of adhesion and heat resistance of protective layer of aluminum foil bag
Adjust printing process properly
Typical quality cases:
Test sample: Zhitong tablet package
Targeted test items: protective layer adhesion, protective layer heat resistance
Test results of the manufacturer: in the adhesive test of the protective layer, the protective layer of the aluminum foil bag did not fall off, but in the heat resistance test of the protective layer, the protective layer fell off obviously. Therefore, the heat resistance of the protective layer is poor, and the protective layer is easy to fall off after heat sealing or other high-temperature links, which is the main reason that the printing handwriting is easy to be ground. http://m.switzerland-hotel.com/
Dongguan Beite packaging materials Co., Ltd
Aluminum foil packaging bags, mask bags, self-supporting zipper bags, eight side sealing bags, red wine bags, dog food bags, beverage bags, bags in boxes, wrapped films, perforated fruit bags.
