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Lithographic printing plate precursor and lithographic printing method using the same

A lithographic printing plate and precursor technology, applied in the field of lithographic printing plate precursors, can solve the problems of weakening image strength and printing durability

Active Publication Date: 2005-07-13
FUJIFILM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0016] Although the above method of forming an image by simple thermal fusion and coalescence of polymer fine particles exhibits good print developability, it has defects such as markedly weakened image strength and insufficient print durability

Method used

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  • Lithographic printing plate precursor and lithographic printing method using the same
  • Lithographic printing plate precursor and lithographic printing method using the same
  • Lithographic printing plate precursor and lithographic printing method using the same

Examples

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specific example

[0203] Specific examples include: oils and fats such as linseed oil, soybean oil, poppy oil and safflower oil; plasticizers such as tributyl phosphate, tricresyl phosphate, dibutyl phthalate, dibutyl laurate esters and dioctyl phthalate; fine particle dispersions of waxes such as carnauba wax, castor wax, microcrystalline wax, paraffin wax, shellac wax, carnauba wax and beeswax; or long-chain fatty acid metal salts such as low Molecular weight polyethylene, silver behenate, calcium stearate and magnesium palmitate, n-nonane, n-decane, n-hexadecane, octadecane, eicosane, caproic acid, capric acid, stearic acid, oil Acid, Lauryl Alcohol, Octyl Alcohol, Stearyl Alcohol, 2-Octyl Alcohol, Lauryl Alcohol, Lauryl Methyl Ether, Stearyl Methyl Ether and Stearamide.

[0204] A method of incorporating a hydrophobic organic compound into image-forming particles is as follows: After synthesizing fine resin particles, the fine resin particles are added to an organic solvent in which a hydro...

example

[0464] Specific examples include: a method of exposing a lithographic printing plate precursor with an infrared laser, attaching the plate to a cylinder of a printing press without passing the exposed plate through a development step; attaching a lithographic printing plate precursor to a printing press On the cylinder, the plate is exposed with an infrared laser on the printing press and printed without a development step.

[0465] When printing is performed by imagewise exposing a lithographic printing plate precursor with an infrared laser, without passing the plate through a development step such as wet development, providing the plate with an aqueous component and an oil-based ink for printing, curing by exposure The image-recording layer of the image-recording layer forms an oil-based ink receiver having a lipophilic surface in the exposed regions of the image-recording layer. On the other hand, in the unexposed areas, the uncured image-recording layer is at least partia...

specific Embodiment approach

[0468] The present invention will be described in detail below by way of examples and comparative examples, but it should be understood that the present invention is not limited to these examples.

[0469]

[0470] Synthetic Imaging Particles (Microcapsule Particles)(1)

[0471] 10 g of an adduct of xylyl diisocyanate and trimethylolpropane ("Takenate D-110N", trade name; product of Mitsui Takeda Chemicals), 3.15 g of pentaerythritol triacrylate ("SR444", trade name; Nippon Kayaku's product), 0.35 g of the following infrared absorber (1), 1 g of 3-(N,N-diethylamino)-6-methyl-7-anilinofluorane ("ODB", trade name; A product of Yamamoto Chemicals), and 0.1 g of "Pionin A-41C" (trade name; product of Takemoto Oil & Fat) were dissolved in 17 g of ethyl acetate as an oil phase component. 40 g of a 4% by mass "PVA-205" (trade name; product of Kuraray, degree of saponification: 88%, I / O value: 2.1) aqueous solution was prepared as an aqueous phase component. The oil phase componen...

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Abstract

A lithographic printing plate precursor, which comprises a carrier and an image-recording layer, the image-recording layer contains imaging particles and a water-insoluble binder, and the surface of the non-water-soluble binder interacts with the image-forming particles. A lithographic printing plate precursor comprising a support and an image-recording layer, the image-recording layer comprising a polymer binder and particles, wherein the particles are microcapsules with polymerizable functional groups as wall materials.

Description

technical field [0001] The present invention relates to a lithographic printing plate precursor and a lithographic printing method using the same. More specifically, the present invention pertains to a lithographic printing plate precursor that can be directly produced by scanning with an infrared laser based on a digital signal from a computer or the like, and a lithographic printing method using the precursor. Background technique [0002] Lithographic printing plates generally consist of lipophilic image areas that receive ink during printing and hydrophilic non-image areas that receive dampening fluid. Lithography is a printing process that exploits the mutual repulsion of water and oil-based inks to cause the printing ink to be deposited on the surface of the lithographic printing plate with lipophilic image areas that are ink-receiving areas and hydrophilic areas that are dampening fluid-receiving areas. The adhesion of the non-image area (non-ink-absorbing area) is d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B41C1/10
CPCB41C1/1008B41C1/1016B41C1/1025B41C2201/02B41C2201/04B41C2201/06B41C2201/10B41C2201/12B41C2201/14B41C2210/04B41C2210/08B41C2210/20B41C2210/22B41C2210/24
Inventor 星聪山崎纯明小田晃央熊田学
Owner FUJIFILM CORP
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