Explore the source of the pungent odor of UV inkjet printer ink_Identification Consumables

One is the odor of the raw materials of the UV inkjet printer ink itself: similar to monomers, photoinitiators, resin binders, etc., when you open the UV ink bottle cap, it will slowly release the pungent odor. This is the surprise of opening the lid; the second is the smell of the UV inkjet printer ink during the curing process: the photoinitiator of the ink, acrylic resin and other raw materials are cracked to produce aldehydes and sulfur irritating gases. The third is the odor of UV inkjet printer ink after curing: the reaction of some monomers and resins is not complete, and those acrylic components that are not fully reacted will produce a pungent sour odor. And if these unreacted monomers are low molecular weight, low boiling point monomers, they may volatilize offensive odors at room temperature, especially monofunctional monomers. If the monomers and resins used in the UV ink are of good quality and there is no odor problem, then the initiator may be the largest source of pungent odors in the UV inkjet printer ink. UV inkjet printer ink cleaning fluid, generally 100% VOC solvent, belongs to organic volatile matter, and also has a pungent odor. At this stage, most of the pungent odors of UV printing are mainly derived from the volatiles released before and after the curing of UV inks. The ozone generated when the UV inkjet curing lamp is working, the LED ultraviolet light curing lamp will produce a slight ozone when it is irradiated. The wavelength range of ultraviolet light generated by the curing device of the UV inkjet printer is 200-425nm. Among them, short-wave ultraviolet light below 275nm comes into contact with oxygen in the air, which easily produces ozone, which is a major source of pungent odors. These ozone often cannot decompose on its own, and will not only float in the air, but also remain on the surface of the printed product (the printed product is absorbent and will retain some odors). It seems to have suddenly contributed to the protection of the ozone layer. The substrate for printing produces pungent odors. At present, the substrates of UV inkjet printers have everything, such as soft film, knife cloth, acrylic, KT board, Chevron board and so on. Under high temperature conditions, with the assistance of high-power UV curing lamps, the substrate will be decomposed into complex chemicals and produce a lot of pungent odors. In addition, the stacked storage of a large number of finished printed materials will cause the heat to be too late to dissipate and cause a large amount of odor to remain inside the printed materials. When you receive these prints, OMG, the taste is okay.