摘要:
A planographic printing plate precursor comprises a substrate having disposed thereon a hydrophilic layer which includes hydrophilic graft chains and a crosslinked structure formed through hydrolytic polycondensation of an alkoxide of an element selected from Si, Ti, Zr and Al. An aluminum substrate for a planographic printing plate includes a hydrophilic surface which is formed by a hydrophilic polymer including a functional group that chemically bonds to the aluminum substrate directly or is chemically bindable to the aluminum substrate via structural component having a crosslinking structure. A surface-hydrophilic member comprises a substrate having disposed thereon a hydrophilic layer, wherein the hydrophilic layer includes hydrophilic graft chains and a crosslinked structure formed through hydrolytic polycondensation of an alkoxide of an element selected from Si, Ti, Zr and Al.
摘要:
A lithographic printing plate precursor comprising an image recording layer containing a sensitizing dye, a polymerization initiator, a polymerizable compound and a binder polymer and a hydrophilic support, wherein the image recording layer or a layer optionally provided between the image recording layer and the hydrophilic support contains a compound capable of forming an adsorptive group to the hydrophilic support due to heat, an acid or a radical.
摘要:
A presensitized lithographic printing plate comprises a hydrophilic support and an image-forming layer. The image-forming layer contains microcapsules. The microcapsules consist of a shell and a core. The shell comprises a polymer. The polymer has a decomposition temperature in the range of 150 to 280° C. The core comprises a polymerizable compound.
摘要:
A lithographic printing plate precursor comprising: a support; an undercoat layer; and an image recording layer containing a polymerization initiator, a polymerizable compound and an infrared ray absorbing agent, the image recording layer being removable with at least one of a printing ink and a fountain solution, in this order, wherein the undercoat layer contains a compound having (a) an ethylenically unsaturated bond and (b) a functional group capable of adsorbing to a surface of the support.
摘要:
An electrophotographic photosensitive material comprising a conductive support having thereon (a) a layer containing a charge transporting compound and a charge generating compound or (b) a combination of a layer containing a charge transporting compound and a layer containing a charge generating compound, wherein a novel disazo compound is contained as the charge generating compound, and a printing plate for electrophotographic process, which is prepared by subjecting an electrophotographic photosensitive material comprising a conductive support having thereon a photoconductive layer containing at least a charge generating material, a charge transporting material and a binder resin to an imagewise exposure and a development to form a toner image, and by removing a non-image area of the photoconductive layer other than the toner image area thereof, wherein at least one charge generating material is a novel disazo compound.
摘要:
An electrophotographic photoreceptor is disclosed, which comprises an electrically conductive support having thereon a layer which contains a charge carrier transporting compound and a charge carrier generating compound, or a layer which contains charge carrier transporting compound and a layer which contains a charge generating compound, wherein at least one type of tris-azo compound represented by formula (I) is included as a charge carrier generating compound: ##STR1## wherein Ar.sub.1, Ar.sub.2, Ar.sub.3, Ar.sub.4 and A are as defined in the specification.
摘要:
The integrated type electrophotographic light-sensitive material is disclosed, the material comprising two layers comprising (1) an electric charge generating layer containing an electric charge generating material and (2) an electric charge transporting layer containing an electric charge transporting material, provided on an electrically conductive base, wherein said electric charge generating layer contains at least one hydrazone compound represented by the following general formulas (I)-(V): ##STR1##
摘要:
Disazo compounds of a specified structure as a photoconductive element for photoreceptors in an electrophotographic process, which achieve higher photosensitivity and higher durability compared with conventional organic photoconductive materials, useful with copying machines, printers, video camera pickup tubes and semiconductor circuits for signal transfer and scanning.
摘要:
A planographic printing plate precursor comprises a substrate having disposed thereon a hydrophilic layer which includes hydrophilic graft chains and a crosslinked structure formed through hydrolytic polycondensation of an alkoxide of an element selected from Si, Ti, Zr and Al. An aluminum substrate for a planographic printing plate includes a hydrophilic surface which is formed by a hydrophilic polymer including a functional group that chemically bonds to the aluminum substrate directly or is chemically bindable to the aluminum substrate via structural component having a crosslinking structure. A surface-hydrophilic member comprises a substrate having disposed thereon a hydrophilic layer, wherein the hydrophilic layer includes hydrophilic graft chains and a crosslinked structure formed through hydrolytic polycondensation of an alkoxide of an element selected from Si, Ti, Zr and Al.
摘要:
Disclosed is a presensitized plate composed of a support having thereon an image recording layer which includes: an infrared absorber (A) that is a cyanine dye having at least one fused ring composed of a nitrogen-containing heterocycle in combination with an aromatic ring or a second heterocycle, and having on the aromatic ring or second heterocycle an electron-withdrawing group or a heavy atom-containing group, a radical generator (B), and a radical-polymerizable compound (C), and which is removable with printing ink and/or dampening water. The presensitized of the present invention can be imaged with an infrared light-emitting laser to directly record an image from digital data on a computer or the like and is then subjected to on-machine development without carrying out a development step, which is capable of providing a large number of good impressions with a practical amount of energy.