摘要:
A photosensitive composition comprising a resin containing a repeating unit corresponding to a monomer having a structure represented by formula (I) defined in the specification, and a negative working lithographic printing plate having a negative working photosensitive layer comprising the above-described photosensitive composition.
摘要:
A radical polymerizable compound comprising a structure represented by the following formula (I), (II) or (III): wherein the various groups and “n” in the formulas are defined and certain of the defined groups contain a hetero atom and are connected through the hetero atom.
摘要:
An infrared-sensitive image forming material with which a plate can be directly formed by an infrared laser. The infrared-sensitive image forming material has a support having disposed thereon a recording layer whose solubility in an aqueous alkaline solution is altered by irradiation with an infrared laser. The recording layer has a binder phase formed of a polymer compound, a dispersion phase that is dispersed in the binder phase, and an infrared absorbent present in either one of the binder phase and the dispersion phase. Within a total incorporated amount of the infrared absorbent in the recording layer, a mass present in the dispersion binder is greater than a mass present in the binder phase. Namely, within the recording layer, the infrared absorbent is localized in the dispersion phase.
摘要:
The present invention relates to a positive photosensitive composition, and in particular to a material for plate printing for heat mode printing. The positive photosensitive composition of the present invention comprises at least a diazo compound represented by the following General Formula 1, and a water-insoluble but alkaline water-soluble polymer: (where Z represents an organic group in which the pKa of dissociating H in Ph—NH—Z is 14 or less; and Q1 and Q2 represent organic groups, where Q1 and Q2 may be bonded to form an aliphatic ring or aromatic ring).
摘要:
There is provided a negative type image recording material that allows direct-plate making from digital data using an infrared laser and a method of plate-making using this negative type image recording material. The negative type image recording material comprises a compound (A) which is cross-linked with the aid of an acid, a binder polymer (B), a compound (C) which generates an acid upon heating, and (D) an infrared ray absorbing agent. The compound (A) which is cross-linked with the aid of an acid is a mixture of a lower molecular weight phenol derivative represented by the following general formula (I) with a polynuclear phenol cross-linking agent and/or resol resin. In the formula, Ar1 represents an aromatic hydrocarbon ring, R1, R2 and R3 represent a hydrogen atom or a hydrocarbon group having 12 or less carbon atoms, respectively, m represents an integer of 2 to 4, and n represents an integer of 1 to 3. X represents a divalent connecting group, Y represents a monovalent, divalent, trivalent or tetravalent connecting group or a functional group having a terminal hydrogen atom, manifesting interaction with a cross-linking agent having a specific structure.
摘要:
A compound having, in its molecule, a polymethine chain structure containing a partial structure represented by the following formula (1-1), and an image forming material containing the same. In the formula (1-1), R1, R2, R3, R4, and X each independently represent a hydrogen atom, a halogen atom, or a monovalent organic group. The image forming material is useful as the image recording layer of a planographic printing plate precursor.
摘要:
A process for producing a cured coating is provided that includes a step of forming on a substrate layer of a curable composition that includes at least one compound represented by Formula (I) and a step of curing the layer of the curable composition by irradiation with electron beam. In formula (I) , Q1 denoted a cyano group or a —COX2 group, X1 denoted a hydrogen atom, organic residue, or polymer chain bonded to carbon atom CA via a heteroatom, or a halogen atom, X2 denoted a hydrogen atom, organic residue, or polymer chain boned to the carbonyl group via a heteroatom, or a halogen atom, Ra and Rb independently denote a hydrogen atom, a halogen atom, a cyano group, or an organic residue, and X1 and X2, Ra and Rb, and X1 and Ra or Rb may be bonded to each other to form a cyclic structure. There is also provided an electron beam-curable composition that includes a compound represented by Formula (I).
摘要:
The present invention provides a planographic printing plate precursor including on a support a photosensitive layer that contains a polymerizable composition containing a specific binder polymer having a repeating unit of formula (I), an infrared absorbent, a polymerization initiator and a polymerizable compound, wherein R1 represents a hydrogen atom or a methyl group; R2 represents a linking group which includes two or more atoms selected from a carbon atom, a hydrogen atom, an oxygen atom, a nitrogen atom and a sulfur atom and has a number of atoms of 2 to 82; A represents an oxygen atom or —NR3— in which R3 represents a hydrogen atom or a monovalent hydrocarbon group having 1 to 10 carbon atoms; and n represents an integer of 1 to 5. The invention also provides a planographic printing plate precursor provided with a specific photosensitive layer with respect to an alkaline developer.
摘要:
A polymer having a polymerizable group and an alkyleneoxy groups on side chains thereof, and a polymerizable composition containing the polymer. The polymerizable composition preferably contains a polymerizable compound and a polymerization initiator. Also provided is a planographic printing plate precursor having a polymerizable layer on a hydrophilic support, the polymerizable layer containing a polymer having a polymerizable on a side chain thereof. The planographic printing plate precursor can form an image without being subjected to an alkali development. An undercoat layer containing a specific copolymer may be provided between the support and the photopolymerizable layer.
摘要:
A lithographic printing plate precursor includes an image-recording layer and a protective layer containing a stratiform compound, wherein at least one of the image-recording layer and the protective layer contains a polymer containing as a repeating unit, a structural unit having an ammonium structure.