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Dear Ret Heidelberg Instructor,
I request for your comments on converting conventional dampening unit of single colour offset machine for UV varnish coating. As you are aware once can do it by replacing exisitng 3 cotton hose rollers by new bigger diameter Nitrile Rollers.This method gives more deposition on paper than through ink duct. However viscosity of varnish should not be too low. What is your expert advice on this. Thanks.
I request for your comments on converting conventional dampening unit of single colour offset machine for UV varnish coating. As you are aware once can do it by replacing exisitng 3 cotton hose rollers by new bigger diameter Nitrile Rollers.This method gives more deposition on paper than through ink duct. However viscosity of varnish should not be too low. What is your expert advice on this. Thanks.