摘要:
The invention provides an ink composition having at least (A) a polymerization initiator, (B) an ester or amide of (meth)acrylic acid having a 1,3-dioxolane ring skeleton or a 1,3-dioxane ring skeleton or (B′) an ester or amide of (meth)acrylic acid having a 1,3-diketone structure, and (C) a colorant. The invention further provides an inkjet recording method and a method for producing a planographic printing plate, each of which includes at least (I) ejecting the ink composition onto a hydrophilic support and (II) curing the ink composition by irradiating the ejected ink composition with active radiation so as to form a hydrophobic image region on the hydrophilic support. The invention furthermore provides a planographic printing plate formed by the method for producing a planographic printing plate.
摘要:
An ink composition includes (A) a polymerization initiator; (B) an ester or amide of a mono-functional (meth)acrylic acid having an alkylene oxide repeating unit in a molecule; and (C) a colorant, and preferably further includes (E) a sensitizing dye.
摘要:
The invention provides an ink composition having at least (A) a polymerization initiator, (B) an ester or amide of (meth)acrylic acid having a 1,3-dioxolane ring skeleton or a 1,3-dioxane ring skeleton or (B′) an ester or amide of (meth)acrylic acid having a 1,3-diketone structure, and (C) a colorant. The invention further provides an inkjet recording method and a method for producing a planographic printing plate, each of which includes at least (I) ejecting the ink composition onto a hydrophilic support and (II) curing the ink composition by irradiating the ejected ink composition with active radiation so as to form a hydrophobic image region on the hydrophilic support. The invention furthermore provides a planographic printing plate formed by the method for producing a planographic printing plate.
摘要:
A photocurable composition is provided that includes a polymerizable compound, a photopolymerization initiator, a compound represented by Formula (I) below, and an amine compound, the photopolymerization initiator comprising an acylphosphine oxide compound and/or an α-aminoacetophenone compound in Formula (I) above, X denotes O, S, or NR, n denotes 0 or 1, R denotes a hydrogen atom, an alkyl group, or an acyl group, R1, R2, R3, R4, R5, R6, R7, and R8 independently denote a hydrogen atom or a monovalent substituent, and two of R1, R2, R3, and R4 that are adjacent may be bonded to each other to form a ring. There are also provided a photocurable ink composition that includes the photocurable composition and a colorant, an ink composition for photocuring inkjet recording that includes the photocurable ink composition, a process for producing a photocured material that includes preparing the photocurable composition and irradiating the photocurable composition with light having a light emission peak in the range of at least 340 nm but no greater than 400 nm, and an inkjet recording method that includes discharging the ink composition onto a recording medium and irradiating the ink composition with actinic radiation.
摘要:
An inkjet recording ink composition, including polymerizable compounds including a monofunctional polymerizable monomer and a polyfunctional polymerizable monomer, and a radical polymerization initiator, wherein the polymerizable compounds include a polymerizable compound having, in a molecule thereof, a polymerizable unsaturated bond and an amino group, and a content ratio of the monofunctional polymerizable monomer with respect to the total amount of the polymerizable compounds is from 90% by mass to 99.9% by mass, and a content ratio of the polyfunctional polymerizable monomer with respect to the total amount of the polymerizable compounds is from 0.1% by mass to 10% by mass.
摘要:
The invention provides an ink composition including a compound including a polymerizable unsaturated bond and a sulfide bond; and a radical polymerization initiator.
摘要:
The present invention provides a photosensitive composition comprising an infrared absorbing agent represented by the following formula (I) and a polymer compound which is insoluble in water and soluble in an aqueous alkali solution and becoming soluble in an aqueous alkali solution by radiation of an infrared laser. In the formula described below, R1 and R2 independently represent an alkyl group having 1 to 18 carbon atoms or an alkyl group having 9 to 30 carbon atoms and Z represents a heptamethine group which may have a substituent. The definitions of other substituents are shown in the specification. According to the present invention, a photosensitive composition having high development latitude and storage stability, together with a positive type planographic printing plate for direct plate-making which can form an image with high sensitivity by using an infrared laser, are provided.
摘要:
The positive-type planographic printing plate precursor of the invention comprises a support and a recording layer provided on the support, wherein the recording layer contains: a polymer compound having (a) a monomer represented by the following formula (1), (b) a monomer having an aliphatic group having 7 or more carbon atoms and having a bridge bond, and (c) monomer having an acid group as a copolymerization component; and an infrared-ray absorbing agent. The positive-type planographic printing plate precursor of the invention achieves both excellent developability and excellent inking property, as well as better image-forming property and a clear image. wherein in the formula (1), Rf is a substituent containing a fluoroalkyl group or a perfluoroalkyl group having 9 or more fluorine atoms, n represents 1 or 2, and R1 represents hydrogen or a methyl group.
摘要:
An infrared-sensitive photosensitive composition comprising: (A) a resin; (B) a novolak resin; and (C) a light-to-heat converting substance, wherein the resin (A) has, as copolymer components, at least: (1) a (meth)acrylic acid or a monomer represented by formula (I) as defined herein; and (2) at least one compound selected from the group consisting of a (meth)acrylic ester, a (meth)acrylamide derivative, and a styrene derivative.
摘要:
A negative image-recording material which can be imagewise-exposed by IR radiation from IR lasers and enables direct image formation from digital data of a computer or the like. The material, when used in a lithographic printing plate, ensures good hardenability in an image area, exhibits good printing durability, even if not heated for image-formation, and ensures a large number of good prints from the printing plate. The material includes (A) an IR absorber having an oxidation potential of at most 0.35 V (vs. SCE), (B) a thermal radical generator and (C) a radical-polymerizing compound. The material is imagewise-exposed to IR radiation for image formation. Preferably, the IR absorber (A) has, in a chromophoric group, an electron-donating substituent having a Hammett's &sgr;para value of at most −0.10, and the thermal radical generator (B) is an onium salt.