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Requirements for printing ink in the production of aluminum foil bags

by:Supouches Packaging     2021-12-22
Aluminum foil bags are an important material for food packaging. Exceeding standards has always been a problem that plagued the majority of plastic bag manufacturers. How do aluminum foil bag custom manufacturers solve this industry problem? That is how water-based inks and water-based inks are operated. The editor will tell you one by one! 1. Before custom-made food aluminum foil bags are printed, adjust the ink viscosity according to the depth of the printing plate cylinder. Add water to the ink. If necessary, add new ink to ensure that the audio hue is always consistent. 2. The drying temperature should be controlled between 50 and 60 degrees Celsius. When drying, the air volume should be large to ensure that the water-based ink transferred to the film can be quickly dried. 3. Use water to adjust the ink viscosity, generally within 15-25 seconds. To prevent the viscosity from being too high, resulting in dirty and smeared plates. 4. The cell depth of the printing plate cylinder should be shallower, which will help speed up the printing speed and save ink. If the cells are too deep, it will not only hinder the printing speed, consume ink, but also prone to adhesion. The specific depth is maintained at 15-25um. 5. Before printing custom-made food aluminum foil bags, adjust the ink viscosity according to the depth of the plate cylinder cell. Do not add water to the ink during the printing process. If necessary, add new ink to ensure that the audio hue is always consistent. 6. When using water-based ink for aluminum foil bag printing, the PH value should be controlled between 8.5-9. 7. After the ink is poured into the ink tank, the printing plate cylinder should be idled for 2min~3min before starting printing to ensure that the printing plate cylinder is moist and effectively agitate the ink. In the printing process, if you encounter a temporary shutdown, you must ensure that the printing plate continues to rotate to prevent the ink on the printing plate from drying out and causing cell blockage. 8. Before printing custom-made food aluminum foil bags, adjust the ink viscosity according to the depth of the plate cylinder cell. Do not add water to the ink during the printing process. If necessary, add new ink to ensure that the audio hue is always consistent. At present, the country has included custom-made aluminum foil bags in the mandatory 3C certification catalog, which means that the printing of water-soluble aluminum foil bags will have a broader development, because it has no benzene, no irritating smell, and does not pollute food, it is very suitable Printing of food aluminum foil bags. Under the general trend of environmental protection, this kind of environmentally friendly ink printed aluminum foil bag products will usher in excellent development opportunities.
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