With the improvement of people's environmental protection and health awareness, people pay more and more attention to food packaging. In the case of milk powder packaging, the future development of milk powder packaging printing ink will be based on benzene-free ink, which is likely to be in the future. In the past few years, it has become the mainstream of printing ink.
At present, in the survey, we found that the packaging and printing of milk powder is mainly based on plastic composite flexible packaging, and also in metal cans. The plastic composite flexible packaging printing is basically printed on BOPP film or 0ET film, and then with aluminum foil or aluminum foil and The heat sealing material is compounded.
For general milk powder packaging, it is mainly printed with chlorinated polypropylene resin ink. Although ink manufacturers have adopted various methods to adjust the ink structure and reduce the residue of benzene toxic solvent in the package, there will still be a small amount of residue in the package. . In order to completely eliminate toxic solvent residues, some companies have used benzene-free inks for printing. However, since benzene-free inks have some quality problems in printing, they do not meet the requirements for composite strength and heat-sealing performance, so they are less used.
The benzene-free ink generally refers to a polyurethane resin as the main resin ink, and basically does not contain a benzene solvent. Even if a certain printing effect is used, a small amount of a benzene solvent is used, and the residual amount of the benzene solvent after the ink is dried is extremely small. Therefore, benzene-free inks will gradually be welcomed by dairy production.
For milk powder packaging printing inks, the future development direction of technology will be based on benzene-free inks. With the improvement of people's environmental protection and health awareness, such inks are likely to become the mainstream of printing inks in the next few years. In addition, some ink manufacturers are currently researching more environmentally friendly water-based plastic printing inks and have entered the trial printing stage.
At present, in the survey, we found that the packaging and printing of milk powder is mainly based on plastic composite flexible packaging, and also in metal cans. The plastic composite flexible packaging printing is basically printed on BOPP film or 0ET film, and then with aluminum foil or aluminum foil and The heat sealing material is compounded.
For general milk powder packaging, it is mainly printed with chlorinated polypropylene resin ink. Although ink manufacturers have adopted various methods to adjust the ink structure and reduce the residue of benzene toxic solvent in the package, there will still be a small amount of residue in the package. . In order to completely eliminate toxic solvent residues, some companies have used benzene-free inks for printing. However, since benzene-free inks have some quality problems in printing, they do not meet the requirements for composite strength and heat-sealing performance, so they are less used.
The benzene-free ink generally refers to a polyurethane resin as the main resin ink, and basically does not contain a benzene solvent. Even if a certain printing effect is used, a small amount of a benzene solvent is used, and the residual amount of the benzene solvent after the ink is dried is extremely small. Therefore, benzene-free inks will gradually be welcomed by dairy production.
For milk powder packaging printing inks, the future development direction of technology will be based on benzene-free inks. With the improvement of people's environmental protection and health awareness, such inks are likely to become the mainstream of printing inks in the next few years. In addition, some ink manufacturers are currently researching more environmentally friendly water-based plastic printing inks and have entered the trial printing stage.
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