Photoinitiators are one of the important components of UV ink. Its main function is to use its photosensitive groups in the absorption of uv light to produce free radicals, cations and other active components, initiate polymerization of functional monomers crosslinking reaction.
During the use of food contact materials, residual photoinitiators may be transferred to food through contact and other means, causing potential harm to human health and sensitization when exposed to skin.
After the polymerization of photoinitiator, most of the photoinitiator will become residues and become the chain end of the polymer, but a small amount of unpolymerized photoinitiator will remain in the ink, and these small molecular compounds can migrate from the printing ink of food packaging materials to food, causing food contamination.
How can I reduce the risk of exposure to photoinitiators?
1.Minimize food contact with the outer surface of packaging materials, especially packaging material with more ink on the outside
2.Avoid storing mixed food packaging materials, such as mineral water bottles, which may lead to the migration of fat-soluble substances into the food.
3.Choose food packaging materials with better quality and higher reputation.
