Printing ink bleed test method basis In the ink production process, which additives should be prepared for emergency? Ink anti-expansion gelling auxiliaries, such as TM-3; waterproof texture, flower additives, such as TM-27, TM-200S, etc.; anti-foam, pinhole additives, such as anti-foaming agent, remover; anti-sinking , Thickening aids, such as bentonite, wax powder, etc.; lightening and adhesion additives, such as leveling, cross-linking accelerators, etc., tackifying resins, etc.; oxidation and UV additives, 1010 antioxidants, inorganic mica ( Anti-ultraviolet and heat-resistant stabilizers, such as powder; anti-whitening agents, such as phenyl ether, butyl ether, dicarboxylic acid ester, cyclohexanone, n-butanol, etc.; thermosetting ink initial adhesion additives, such as lower softening point Rosin, petroleum resins, etc.; phenolic resins, epoxy resins, etc. that increase the holding power of thermoplastic inks. In order to prevent the occurrence of 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. According to the national QB571-83, which is the ink bleed test method: fully mix the test ink with a dipstick and place a small amount on the qualitative filter paper. After 1 hour, observe the infiltrating color around the ink. Blue, yellow-brown or other colors are preferred.
How to prevent fire accident caused by static electricity during printing?
What is the basis of the bleeding inspection method for printing inks?