Screen Printing Products
systems are generally processed in three basic steps: 1)
coating or lamination of the
photopolymer product 2)
exposure and 3)
development or washout. A special equipment may be required for each
step. Most photopolymer products require appropriate handling prior to exposure
except in the case of stereolithography and solid printing plates, which are
ready to be imaged as supplied. The pre-exposure processing steps include laminating; as in
the case of dry film products, and coating and/or drying for liquid materials.
An exposure equipment consists of radiation sources with additional features of
control, speed, safety and ease of processing. The first step after exposure of
photopolymers is development of an image or washout of an unexposed and uncrosslinked polymer. Subsequent steps may involve drying, etching, stripping,
curing (baking), etc. depending on the type of photopolymer system and end use.
For information on equipment for major photopolymer systems click on an
appropriate link below:
Screen printing Products
For radiation-cured adhesives, coatings and inks, exposure sources are similar
to that used for photopolymer systems.
Copyright © 2009 Savla Associates