The UV printing excitant odour specific come from?

The UV printing process can produce excitant odour, including print will eventually with some irritating smell. So, the excitant odour on earth come from?

UV curing devices work produce ozone?

UV curing devices produced by ultraviolet wavelength range is 200 ~ 425 nm. Among them, the 275 - nm under short-wave ultraviolet light contact with oxygen in the air, easy to produce ozone, is a major source of excitant odour. These ozone are often unable to break down, will not only floating in the air, will remain in the print surface (printing quality have adsorption, will be reserved for some smell). ?

The UV printing ink itself produce irritating smell?

UV ink excitant odour mainly comes from two aspects: one is the UV printing ink itself raw materials (such as monomer diluent, low molecular weight initiator, resin link agent, etc.) under certain conditions will slow release of excitant odour. Second, after UV ink curing, initiator, resin and other raw materials can produce aldehyde, sulfur pyrolysis excitant gas. At present, the vast majority of UV printing of excitant odour mainly comes from the UV curing ink before and after the release of volatiles. ??

Different substrates to produce irritating smell??

The UV printing substrates including paper, gold and silver cardboard, aluminum foil, transfer paper, synthetic paper and PVC, PP, PET, ABS, PC film, etc. ?

In significantly higher than the room temperature conditions, coupled with intense ultraviolet light, substrates will be ripped off complex chemical substances, to produce a little irritating smell. And a large number of printing quality of the pile of pile of storage can lead to heat to send out, causing the excitant odour of residue within the printing quality. ?

UV cleaner produce irritating smell?

UV cleaning agent of high boiling point ethers, esters and alcohols solvent composition and so on, belong to the organic volatiles. UV printing before, if use UV printing immediately after cleaning agent cleaning equipment, UV detergent will mix with UV ink, and residue on the surface of substrates, which produce irritating smell. UV detergent ingredients, excitant odour is produced by large difference. ?

High boiling point of the UV detergent cleaning effect is good, but the volatile slow, easy to cause a large number of residues; Low boiling point of the UV detergent, such as ethanol, ethyl acetate, cleaning effect is general, but the volatile fast, not easy to remain. In general, the same kind of UV detergent formulation will use high boiling point and low boiling point components collocation. ?