Abstract:
An object of the present invention is to provide an image recording material exhibiting an excellent exposure visualization property as well as an image formation process employing the image recording material, and further to provide not only a printing plate material exhibiting excellent on-press developability and printing durability, but also an image formation process employing the printing plate material, accompanied with an excellent exposure visualization property. Also disclosed is an image recording material possessing a support and provided thereon, a thermosensitive image formation layer, wherein the thermosensitive image formation layer contains thermoplastic spherical particles having an average particle diameter of 100-500 nm, and exhibits a structural color originated with the thermoplastic spherical particles.
Abstract:
The present invention provides a method of coating a coating solution comprising: providing a web; providing a coating solution; coating the coating solution on at least one surface of the web; and drying the coating solution to form a coated layer, wherein a temperature of the web is maintained at 35° C. or more during coating. According to the coating method, a multi-layered planographic printing plate can be manufactured at low energy cost and running cost.
Abstract:
The infrared-ray photosensitive planographic printing plate precursor of the present invention comprises a support, a recording layer provided on one side of the support, and a back coating layer provided on a side opposite to a side having the recording layer of the support, and the recording layer contains (a) a long chain alkyl group-containing polymer containing a vinyl monomer having a carboxyl group at a composition ratio within a range from 20 to 99 mol %, and (b) an infrared absorbing agent, and can form an image by infrared-ray irradiation. According to this planographic printing plate precursor, even when the precursor is packaged and transported without using a protective paper (interleaving paper) between plate materials, a recording layer is hardly scratched.
Abstract:
Disclosed is a printing plate material in roll form of the on-press development type comprising a support, a functional layer including a hydrophilic layer and a thermosensitive image formation layer provided on one side of the support, and a back coat layer provided on the other side of the support, the functional layer containing first matting agents and having first protrusions formed from the first matting agents, and the back coat layer containing second matting agents and having second protrusions formed from the second matting agents, wherein an average protrusion height of the first protrusions is 0.5 to 5.0 μm higher than that of the second protrusions.
Abstract:
A thermosensitive lithographic printing plate comprising: a hydrophilic support; a lower layer comprising a water-insoluble and alkali-soluble resin; and an upper thermosensitive layer comprising a water-insoluble and alkali-soluble resin and an infrared absorbing dye, whose dissolution in an alkaline aqueous solution increases upon exposure, wherein a surface of the upper thermosensitive layer has protrusions caused by ununiformity of thickness of the upper thermosensitive layer in a proportion of 0.1 or more and not more than 7 per μm2 or the upper thermosensitive layer comprises at least two alkali-soluble resins having a different dissolution speed in an alkaline aqueous solution from each other, and the at least two alkali-soluble resin cause phase separation from each other.
Abstract translation:一种热敏平版印刷版,包括:亲水载体; 包含水不溶性和碱溶性树脂的下层; 以及包含水不溶性和碱溶性树脂和红外吸收染料的上部热敏层,其在碱性水溶液中的溶解在曝光时增加,其中上部热敏层的表面具有由上部的热塑性树脂的厚度不均匀引起的突起 热敏层的比例为0.1以上且不超过7个/ m 2或上部热敏层包含至少两种在碱性水溶液中彼此溶解速度不同的碱溶性树脂 ,并且所述至少两种碱溶性树脂引起相分离。
Abstract:
A heat mode type negative image recording material is provided which comprises (A) a polymer compound that is insoluble in water but is soluble in an alkali aqueous solution and has at least one of groups represented by general formulae (1) to (3) on a side chain; (B) a photothermal conversion agent; and (C) an onium salt compound forming radicals by heat mode exposure with light that is capable of being absorbed by said photothermal conversion agent (B), said heat mode type negative image recording material being capable of recording an image by heat mode exposure. The general formulae are defined in the specification.
Abstract:
A heat-sensitive lithographic printing plate of the present invention, which enables image recording by infrared-ray scanning exposure based on digital data and has excellent on-press developability, high resistance to scumming and a long press life, the heat-sensitive lithographic printing plate having on a support with a hydrophilic surface an image-forming layer made up of microcapsules in which a reactive group-containing hydrophobic compound is enclosed, a light-to-heat converting agent and a water-soluble compound which has a reactive group capable of reacting with the hydrophobic compound and is situated outside the microcapsules.
Abstract:
A lithographic printing plate precursor capable of forming an image without alkali development, comprising a hydrophilic support and a laser-sensitive photopolymerizable layer, wherein the photopolymerizable layer or other layer included in the lithographic printing plate precursor contains a copolymer containing at least a repeating unit having at least one ethylenically unsaturated bond and a repeating unit having at least two functional groups capable of interacting with a surface of the support or a copolymer containing at least a repeating unit having at least two ethylenically unsaturated bonds and a repeating unit having at least one functional group capable of interacting with a surface of the support.
Abstract:
Imageable elements that contain silicate-coated polymer particles in the imageable layer, stacks of these elements, and methods for forming images using these elements are disclosed. The elements do not stick to each other when stacked without interleaving paper, and only one imageable element is lifted at a time when the imageable elements are handled by automatic processing equipment. Blanket piling is not observed when silicate-coated particles are present in the imageable layer.
Abstract:
The present invention provides a polymerizable composition comprising (A) a compound including a polymerizable unsaturated group and (B) a macromolecular compound including, at a side chain thereof, a structure represented by the following general formula (I). The present invention also provides a negative type planographic printing plate precursor responsive to an infrared laser, the precursor being superior in recording sensitivity and printing durability and using the polymerizable compound as a recording layer.General Formula (I) Z−M+ wherein Z− represents COCOO−, COO−, SO3− or SO2—N−—R where R represents a monovalent organic group and M30 represents an onium cation.