Development trend of the hottest milk powder packa

2022-08-12
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Development trend of printing ink for milk powder packaging

at present, the packaging and printing of milk powder are mainly plastic composite flexible packaging, and some are packaged in metal cans. Plastic composite flexible packaging printing is basically first printed on BOPP film or PET film, and then compounded with aluminized film or aluminum foil and heat sealing materials

for general milk powder packaging, chlorinated polypropylene resin ink is mainly used for printing. Although the ink manufacturer has adopted various methods to adjust the ink structure and reduce the residue of benzene toxic solvents in the packaging, there will still be a small amount of residues in the packaging. In order to completely eliminate the residue of toxic solvents, some enterprises have used benzene free ink for printing. However, due to some quality problems in printing, benzene free ink can not meet the requirements in terms of composite strength and heat sealing performance, so it is rarely used

benzene free ink generally refers to the ink with polyurethane resin as the main resin, which basically does not contain benzene solvents. Even if a small amount of benzene solvents are used to achieve a certain printing effect, the residue of benzene solvents after ink drying is very small. Therefore, benzene free ink will gradually be welcomed by dairy producers with practical results

for milk powder packaging printing ink, the future technological development direction will be benzene free ink. With the improvement of people's awareness of environmental protection and health, this kind of ink is likely to become the mainstream of printing ink in the next few years. In addition, at present, some ink manufacturers are also studying more environmentally friendly water-based plastic printing. We can give them different tables and troubleshooting, post curing and recycled materials to use surface treatment inks, and have entered the trial printing stage

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