Printech Archives, September 1998: Re: Reported Odors from UV Offset Printing

Re: Reported Odors from UV Offset Printing

Wayne Pferdehirt (
Thu, 24 Sep 1998 07:24:48 CST

------- Forwarded Message Follows -------
Date: Wed, 23 Sep 1998 12:21:38 EDT
Subject: Re: Reported Odors from UV Offset Printing

Dear Marcel:

When a UV material is overcured, it can release low molecular weight
compounds from the ink or coating. Some of them will volatilize as
there is a considerable amount of heat involved in the actual curing
process. As to the specific composition, I have not seen any studies
on this subject which would identify the individual compounds in
question. Their composition would be very dependent upon the exact
oligomers and monomers which are used to formulate the ink or coating.
As the identity of these are a closely guarded secret, it would be
best to contact the supplier for more information. You could also
conduct some air sampling at and around the unit in question and
identify the composition of the materials via Gas chromatography/Mass

Gary Jones



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