Flexographic printing forme precursor for laser engraving
View Patent ↗A method of making a flexographic printing form precursor for laser engraving including the steps of (i) providing at least one layer of a curable composition on a substrate; (ii) curing the at least one layer; wherein the curable composition defining an outermost layer includes at least 0.5% by weight relative to the total weight of the composition of an organo-silicon compound including at least one polymerizable group; and a urethane (meth)acrylate oligomer having three or less polymerizable groups.
1. A flexographic printing forme precursor for laser engraving comprising:
a substrate;
a layer including a curable composition; and
an outermost layer including at least 0.5% by weight, relative to a total weight of a composition defining the outermost layer, of an organo-silicon compound including at least one polymerizable group and an initiator; wherein
the layer including the curable composition has a thickness from 0.4 mm to 7.0 mm.
2. The flexographic printing forme precursor for laser engraving according to claim 1 , wherein the layer including the curable composition does not include an organo-silicon compound.
3. The flexographic printing forme precursor for laser engraving according to claim 1 , wherein the organo-silicon compound includes at least two polymerizable groups.
4. The flexographic printing forme precursor for laser engraving according to claim 1 , wherein the organo-silicon compound includes at least four polymerizable groups.
5. The flexographic printing forme precursor for laser engraving according to claim 1 , wherein the organo-silicon compound includes at least six polymerizable groups.
6. The flexographic printing forme precursor for laser engraving according to claim 1 , wherein the initiator is a photo-initiator.
7. A flexographic printing forme precursor for laser engraving comprising:
a substrate;
a layer including a curable composition; and
an outermost layer including at least 0.5% by weight, relative to a total weight of a composition defining the outermost layer, of an organo-silicon compound including at least one polymerizable group and an initiator; wherein
the layer including the curable composition includes at least 50% by weight, relative to a total weight of a composition defining the layer including the curable composition, of a urethane (meth)acrylate oligomer including three or less polymerizable groups.
8. The flexographic printing forme precursor for laser engraving according to claim 7 , wherein the layer including the curable composition does not include an organo-silicon compound.
9. The flexographic printing forme precursor for laser engraving according to claim 7 , wherein the organo-silicon compound includes at least two polymerizable groups.
10. The flexographic printing forme precursor for laser engraving according to claim 7 , wherein the organo-silicon compound includes at least four polymerizable groups.
11. The flexographic printing forme precursor for laser engraving according to claim 7 , wherein the organo-silicon compound includes at least six polymerizable groups.
12. The flexographic printing forme precursor for laser engraving according to claim 7 , wherein the initiator is a photo-initiator.
13. A flexographic printing forme precursor for laser engraving comprising:
a substrate;
a layer including a curable composition; and
an outermost layer consisting essentially of an organo-silicon compound and an initiator; wherein
the layer including the curable composition has a thickness from 0.4 mm to 7.0 mm.
14. The flexographic printing forme precursor for laser engraving according to claim 13 , wherein the layer including the curable composition does not include an organo-silicon compound.
15. The flexographic printing forme precursor for laser engraving according to claim 13 , wherein the outermost layer has a thickness of less than 0.5 mm.
16. The flexographic printing forme precursor for laser engraving according to claim 14 , wherein the outermost layer has a thickness of less than 0.5 mm.