Ink composition, ink jet recording method, method for producing planographic printing plate and planographic printing plate
View Patent ↗The invention provides (1) an ink composition including a polymerization initiator and at least one compound selected from the group consisting of (meth)acrylic acid and monofunctional (meth)acrylic acid esters and amides each having a carboxy group in the molecule, (2) an ink composition including a polymerization initiator, at least one compound selected from the group consisting of (meth)acrylic acid and monofunctional (meth)acrylic acid esters and amides each having a carboxy group in the molecule, and a monofunctional (meth)acrylic acid ester or amide having an alkylene oxide repeating unit in the molecule, and (3) an ink composition including a polymerization initiator and a monofunctional (meth)acrylic acid ester or amide having a basic group in the molecule; and an ink jet recording method, a method for producing a planographic printing plate and a planographic printing plate produced by the method for producing a planographic printing plate using the above-mentioned ink compositions.
1. An ink composition comprising:
a polymerization initiator; and
at least one compound selected from the group consisting of (meth)acrylic acid and monofunctional (meth)acrylic acid esters and amides each having a carboxy group in a molecule.
2. The ink composition of claim 1 , further comprising a colorant.
3. The ink composition of claim 1 , which is an ink composition for ink jet recording.
4. An ink jet recording method, comprising:
(a) discharging the ink composition of claim 1 onto a recording medium; and
(b) irradiating the ink composition with active radiation rays to cure the ink composition.
5. A method for producing a planographic printing plate, comprising:
(a) discharging the ink composition of claim 1 onto a hydrophilic support; and
(b) irradiating the ink composition with active radiation rays to cure the ink composition to form a hydrophobic image on the hydrophilic support.
6. A planographic printing plate, which is produced by the method of claim 5 .
7. An ink composition comprising:
a polymerization initiator;
at least one compound selected from the group consisting of (meth)acrylic acid and monofunctional (meth)acrylic acid esters and amides each having a carboxy group in a molecule; and
a monofunctional (meth)acrylic acid ester or amide having an alkylene oxide repeating unit in a molecule.
8. The ink composition of claim 7 , further comprising a colorant.
9. The ink composition of claim 7 , which is an ink composition for ink jet recording.
10. An ink jet recording method, comprising:
(a) discharging the ink composition of claim 7 onto a recording medium; and
(b) irradiating the ink composition with active radiation rays to cure the ink composition.
11. A method for producing a planographic printing plate, comprising:
(a) discharging the ink composition of claim 7 onto a hydrophilic support; and
(b) irradiating the ink composition with active radiation rays to cure the ink composition to form a hydrophobic image on the hydrophilic support.
12. A planographic printing plate, which is produced by the method of claim 11 .
13. An ink composition comprising:
a polymerization initiator; and
a monofunctional (meth)acrylic acid ester or amide having a basic group in a molecule.
14. The ink composition of claim 13 , further comprising at least one compound selected from the group consisting of (meth)acrylic acid and monofunctional (meth)acrylic acid esters and amides each having an acidic group in a molecule.
15. The ink composition of claim 13 , further comprising a colorant.
16. The ink composition of claim 13 , which is an ink composition for ink jet recording.
17. An ink jet recording method, comprising:
(a) discharging the ink composition of claim 13 onto a recording medium; and
(b) irradiating the ink composition with active radiation rays to cure the ink composition.
18. A method for producing a planographic printing plate, comprising:
(a) discharging the ink composition of claim 13 onto a hydrophilic support; and
(b) irradiating the ink composition with active radiation rays to cure the ink composition to form a hydrophobic image on the hydrophilic support.
19. A planographic printing plate, which is produced by the method of claim 18 .
20. The ink composition of claim 1 comprising at least the monofunctional (meth)acrylic acid esters and amides each having a carboxy group in a molecule, wherein the monofunctional (meth)acrylic acid esters and amides each having a carboxy group in a molecule are a compound represented by the following Formula (I):
wherein R represents a hydrogen atom or a methyl group; X represents an oxygen atom or NR′, wherein R′ represents a hydrogen atom or an alkyl group; and Z represents a divalent organic group.