The most common types of flexible packaging are mostly food packaging, and flexible packaging that meets food safety standards should generally meet several conditions, including: packaging materials that meet hygiene standards, non-toxic, odorless, and odorless; High temperature and low temperature resistance, which is beneficial for the storage and transportation of food; Using environmentally friendly materials that can be recycled and reused to reduce environmental pollution; Lightweight packaging, resource saving, etc.
Therefore, the printing of food flexible packaging requires stable ink performance, long-lasting color luster, non-toxic, odorless, volatile organic compounds, and any substances that are harmful to human health. At the same time, ink should also have good wear resistance, sterilization resistance, and water boiling treatment requirements, as well as performance such as frost resistance and heat resistance, to ensure that ink will not fall off or condense during transportation and storage.