Printing form and process for preparing the printing form with curable composition having solvent-free epoxy resin
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United States of America Patent
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Mar 29, 2016
Grant Date -
Oct 15, 2015
app pub date -
Jun 25, 2015
filing date -
Dec 21, 2011
priority date (Note) -
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status (Latency Note)
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Abstract
The invention pertains to a printing form and a process for preparing the printing form from a solvent-free curable composition that includes, in prescribed relative amounts, an epoxy novolac resin; a bisphenol-A epoxy resin or a bisphenol-F epoxy resin; a monofunctional reactive diluent; a multifunctional reactive diluent; and a stoichiometric amount of an amine curing agent. The ratio of the epoxy novolac resin to the bisphenol epoxy resin is 1:3 to 3:1 by weight. The process includes applying the curable composition to a supporting substrate to form a layer, curing the layer at one or more temperatures in a temperature range, and engraving to form at least one cell in the cured layer. The process prepares printing forms, particularly gravure printing forms, having a cured resin composition layer that is engravable, resistant to solvent inks and to mechanical wear, and capable of printing gravure-quality images.
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International Classification(s)
- B41M:PRINTING, DUPLICATING, MARKING, OR COPYING PROCESS....
- B41N:PRINTING PLATES OR FOILS
- C09D:COATING COMPOSITIONS, e.g. PAINTS, VARNISHES, LACQ....
- B41C:PROCESSES FOR THE MANUFACTURE OR REPRODUCTION OF P....
- C08L:COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- B32B:LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA....
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