The basis of the test method for the bleeding of printing inks. In the process of ink production, which additives should be kept in emergency?
Ink anti-swelling and gelling aids, such as TM-3; water-repellent and flowering aids, such as TM-27, TM-200S, etc .; anti-foaming, pinhole additives, such as defoaming agents, desalting agents; , Thickening aids, such as bentonite, wax powder, etc .; glossing and adhesion aids, such as leveling, crosslinking accelerators, tackifying resins, etc .; anti-oxidation and ultraviolet additives, there are 1010 antioxidants, inorganic mica ( Anti-ultraviolet and heat-resistant stabilizer) powder, etc .; whitening agent, including phenyl ether, butyl ether, diformate, cyclohexanone, n-butanol, etc .; thermosetting ink initial adhesion aids, such as those with lower softening points Rosin, petroleum resin, etc .; phenolic resin, epoxy resin, etc. to improve the adhesion of thermoplastic ink.
How to prevent fire accidents caused by static electricity during printing?
In order to prevent fire accidents, antistatic agents or polar solvents are usually added to the ink system. Printing companies often install a conductive device on the printer to prevent it.
What is the basis of the bleeding ink inspection method?
According to the national QB571-83, that is, the ink bleeding test method: fully stir the test ink with an ink knife, and put a small amount on the qualitative filter paper, observe the color of the ink around the ink after 1 hour Blue, tan or other colors are preferred.
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