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75results about "Lithography" patented technology
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On-press development type lithographic printing plate precursor, method of preparing a lithographic printing plate, and lithographic printing method
Provided is an on-press development type lithographic printing plate precursor having two or more maximal absorption wavelengths in a wavelength range of 760 nm to 900 nm, in which in a case where the on-press development type lithographic printing plate precursor is subjected to exposure to infrared having a wavelength of 830 nm at an energy density of 110 mJ / cm2, in a portion subjected to the exposure, a brightness change ΔL before the exposure and after storage subsequent to the exposure for 24 hours under conditions of 25°C and 70% RH is 3.0 or more. Also provided are a method of preparing a lithographic printing plate and a lithographic printing method in which the on-press development type lithographic printing plate precursor is used.
Owner:FUJIFILM CORP
On-press development type lithographic printing plate precursor, method of preparing lithographic printing plate, lithographic printing method, and compound
There is provided an on-press development type lithographic printing plate precursor including a support, and an image-recording layer provided on the support, in which the image-recording layer contains (1) or (2).(1) a borate compound represented by Formula (1) and an electron-accepting polymerization initiator(2) a borate compound represented by Formula (1a)in Formula (1) and Formula (1a), R1, R2, R3, and R4 each independently represent a substituted or unsubstituted alkyl group, a substituted or unsubstituted aryl group, a substituted or unsubstituted alkenyl group, or a substituted or unsubstituted alkynyl group, and R1, R2, R3, and R4 may each independently have a ring structure. Provided that at least one of R1, R2, R3, or R4 is different from the other. M+ represents a cation. Ma+ represents an iodonium cation.
Owner:FUJIFILM CORP
Lithographic printing plate precursor
A lithographic printing plate precursor is disclosed including a support and a coating comprising a photopolymerisable layer including a polymerisable compound and a photoinitiator, characterized in that the coating comprises a hydrophilic adhesion promoting copolymer including at least one monomeric unit according to Formula I and at least one monomeric unit according to Formula II; and at least one group and / or moiety including a phosphor atom.
Owner:ECO3 BV
Printing apparatus and method for producing printed item
Owner:SHUHO KK
On-machine development type lithographic printing plate precursor, method for producing lithographic printing plate, and lithographic printing method
Provided are an on-press development type lithographic printing plate precursor including: a support; and an image-recording layer on the support, in which the image-recording layer contains an electron-accepting polymerization initiator, an electron-donating polymerization initiator, an infrared absorber, and a salt compound A, and an HOMO value of an anion constituting a salt in the salt compound A is -6.2 eV or more and -4.4 eV or less, and a method of preparing a lithographic printing plate or a lithographic printing method using the on-press development type lithographic printing plate precursor.
Owner:FUJIFILM CORP
On-press development type lithographic printing plate precursor, method of preparing lithographic printing plate, and lithographic printing method
An on-press development type lithographic printing plate precursor includes a support, and an image-recording layer on the support, in which the image-recording layer contains an infrared absorber, a polymerization initiator, a polymerizable compound, and at least one compound selected from the group consisting of a compound represented by Formula (1) and a compound represented by Formula (2) (in Formulae (1) and (2), Ra1 and Ra2 represent an alkyl group, Rbi and Rbi represent an alkyl group, Rb2 and Rb4 represent an alkyl group, and EWG's each independently represent a hydrogen atom or an electron-withdrawing group, provided that at least one of the four EWG's in Formula (1) represents an electron-withdrawing group).
Owner:FUJIFILM CORP
Positive tone lithographic printing plate precursor and method of preparing lithographic printing plate
A positive-working lithographic printing plate precursor including a support and an image-recording layer formed on the support and consisting of a positive-working photosensitive resin composition, in which the positive-working photosensitive resin composition contains a compound having at least one electron-withdrawing group and at least one phenolic hydroxyl group in one molecule, an alkali-soluble resin, and an infrared absorber, and the electron-withdrawing group excludes a sulfonyl group; and a method of preparing a lithographic printing plate using the positive-working lithographic printing plate precursor.
Owner:FUJIFILM CORP
Waterless planographic printing plate precursor, method for producing and sorting waterless planographic printing plates, and method for producing printed matter
A waterless planographic printing original plate which sequentially comprises at least a base material, a heat-sensitive layer and an ink-repellent layer in this order, wherein: the base material has a white layer or a white surface; and the heat-sensitive layer contains at least (a) an infrared absorbing dye that has a maximum absorption wavelength of 700 to 1,000 nm, (b) a dye that develops a color by acceptance of a proton, and (c) a proton-donating compound. Consequently, the present invention provides a waterless planographic printing original plate which enables the achievement of a high contrast between an image part and a non-image part by means of light exposure without requiring a special layer.
Owner:TORAY INDUSTRIES INC
On-press development type lithographic printing plate precursor, method of preparing lithographic printing plate, and lithographic printing method
There are provided an on-press development type lithographic printing plate precursor including a support, and an image-recording layer on the support, in which the image-recording layer contains two or more electron-donating polymerization initiators and an electron-accepting polymerization initiator, and the two or more electron-donating polymerization initiators are borate compounds, and at least one of the two or more electron-donating polymerization initiators is a borate compound represented by Formula (1), in which, R1, R2, R3, and R4 each independently represent a substituted or unsubstituted alkyl group, a substituted or unsubstituted aryl group, a substituted or unsubstituted alkenyl group, or a substituted or unsubstituted alkynyl group, and R1, R2, R3, and R4 may each independently have a ring structure, provided that at least one of R1, R2, R3, or R4 is different from the other, and M+ represents a cation.
Owner:FUJIFILM CORP
Lithographic printing plate precursors and methods of use
A negative working lithographic printing plate precursor has a negative working infrared radiation sensitive image recording layer having a) two or more free radical polymerizable components; b) an initiator composition capable of generating free radicals; and c) one or more infrared radiation absorbing cyanine dyes. A) the two or more radically polymerizable components comprise a combination of a urethane (meth) acrylate and a polyester (meth) acrylate together making up 75-100% by weight of all the radically polymerizable components. The weight ratio of the urethane (meth) acrylate to the polyester (meth) acrylate is from 90: 10 to 35: 65. The urethane (meth) acrylate comprises one or more urethane linkages and at least 4 acrylate groups or methacrylate groups. The one or more polyester (meth) acrylates each do not contain a urethane bond and are represented by the following structure (I). These precursors are less sensitive to ambient ozone and can be imaged by infrared radiation and developed on-press during lithographic printing.
Owner:EASTMAN KODAK CO
Systems and processes for persistent marking of flexo plates with isolated microstructures and plates marked therewith
Non-printing indicia on a plate formed in part or in whole from microstructures formed via exposure through openings in a masking layer form elevated or sunken structures that represent one or more alphanumeric signs, digital codes, or alignment marks. An isolated micro alignment mark may be used in conjunction with a ring of LEDs to show alignment by a characteristic illumination pattern to a high degree of accuracy. Non-printing indicia may be derived from imaging a plurality of supercells defined by a plurality of exposed pixels and unexposed pixels disposed within each supercell boundary. Each supercell may have a first number of exposed pixel clusters, each cluster having a second number of exposed pixels, adjacent clusters spaced apart by a third number of unexposed pixels, and a padding between the supercell boundary and a closest exposed pixel cluster defining a fourth number of unexposed pixels.
Owner:ESKO GRAPHICS IMAGING
On-press development type lithographic printing plate precursor, method for producing lithographic printing plate, and lithographic printing method
The present invention provides an on-press-development-type planographic printing original plate which sequentially comprises a supporting body, an image recording layer and a overcoat layer in this order, wherein: the overcoat layer does not contain an inorganic compound, or alternatively, the content of inorganic compounds is more than 0% by mass but less than 1% by mass relative to the total mass of the overcoat layer; and the image recording layer contains an infrared absorbent, a polymerization initiator, a polymerizable compound and an oil agent. The present invention also provides: a method for producing a planographic printing plate with use of the above-described on-press-development-type planographic printing original plate; and a planographic printing method.
Owner:FUJIFILM CORP
Lithographic printing plate precursor, method for preparing a lithographic printing plate, and lithographic printing method
Provided is a lithographic printing plate precursor having an aluminum support and an image-recording layer formed on the aluminum support, in which the image-recording layer contains resin particles A that have an ethylenically unsaturated group and a compound B that has an ethylenically unsaturated group other than the resin particles A and has an ethylenically unsaturated bond valence of 1.5 mmol / g or more. Also provided are a method for preparing lithographic printing plate or a lithographic printing method using the lithographic printing plate precursor.
Owner:FUJIFILM CORP
Printing device, and printed matter production method
PendingEP4516524A4Photomechanical apparatusRotary pressesMechanical engineeringManufacturing engineering
Owner:SHUHO KK
On-press development type lithographic printing plate precursor, method for preparing lithographic printing plate, and lithographic printing method
Provided is an on-press development type lithographic printing plate precursor having a support and an image-recording layer on the support, in which the image-recording layer contains an infrared absorber, a polymerization initiator, a polymerizable compound, and a color-developing substance precursor, and in a case where the image-recording layer is exposed to an infrared laser having a wavelength of 830 nm at an energy density of 110 mJ / cm2, a loss of ethylenically unsaturated bonds in an exposed area in the image-recording layer is 10% to 40% of ethylenically unsaturated bonds in a non-exposed area in the image-recording layer. Also provided is a method for preparing a lithographic printing plate or a lithographic printing method using the on-press development type lithographic printing plate precursor.
Owner:FUJIFILM CORP
Lithographic printing plate precursor and method of preparing lithographic printing plate
A lithographic printing plate precursor including a support and an image-recording layer on the support, in which the image-recording layer contains a polymer A having a main chain containing two or more silicon atoms, and a hydrophilic group.
Owner:FUJIFILM CORP
Flexographic printing plate precursor and method for manufacturing flexographic printing plate
The present invention addresses the problem of providing a flexographic printing plate original plate that suppresses the occurrence of wrinkling in an infrared ablation layer and demonstrates good microcell reproducibility when made into a flexographic printing plate, as well as providing a method for manufacturing a flexographic printing plate using said flexographic printing plate original plate. This flexographic printing plate original plate has a support body, a photosensitive layer, an intermediate layer, and an infrared ablation layer, in this order. The intermediate layer includes a rubber component and a resin component, and the resin component includes at least one of an acrylic resin and a methacrylic resin.
Owner:FUJIFILM CORP
Positive lithographic printing plate precursor and method for producing lithographic printing plate
The present invention addresses the problem of providing a positive lithographic printing plate precursor and a method for producing a lithographic printing plate, said positive lithographic printing plate precursor having good development discrimination and having good brush resistance and image portion scratch resistance. The present invention provides a positive lithographic printing plate precursor and a method for making a lithographic printing plate using the positive lithographic printing plate precursor. The positive lithographic printing plate precursor comprises: a support; and an image recording layer formed from a positive photosensitive resin composition on the support. The positive photosensitive resin composition contains: a compound having at least one electron withdrawing group and at least one phenolic hydroxyl group in one molecule; an alkali soluble resin; and an infrared absorbent, wherein the electron withdrawing group does not include a sulfonyl group.
Owner:FUJIFILM CORP
Positive-working lithographic printing plate precursor and method of preparing lithographic printing plate
A positive-working lithographic printing plate precursor including a support and an image-recording layer formed on the support and consisting of a positive-working photosensitive resin composition, in which the positive-working photosensitive resin composition contains a compound having at least one electron-withdrawing group and at least one phenolic hydroxyl group in one molecule, an alkali-soluble resin, and an infrared absorber, and the electron-withdrawing group excludes a sulfonyl group; and a method of preparing a lithographic printing plate using the positive-working lithographic printing plate precursor.
Owner:FUJIFILM CORP
On-press development type lithographic printing plate precursor, method of preparing a lithographic printing plate, and lithographic printing method
Provided is an on-press development type lithographic printing plate precursor having a support, an image-recording layer, and an outermost layer in this order, in which the image-recording layer contains an infrared absorber, an electron-accepting polymerization initiator, and a polymerizable compound, LUMO of the electron-accepting polymerization initiator - LUMO of the infrared absorber is 0.45 eV or more, and the outermost layer contains a discoloring compound. Also provided is a method of preparing a lithographic printing plate and a lithographic printing method in which the on-press development type lithographic printing plate precursor is used.
Owner:FUJIFILM CORP
Flexographic printing plate manufacturing method
The present invention provides a flexographic printing plate production method for achieving both desired recess depth and reproducibility of independent dots by increasing a hardened area around the respective independent dots and resolving the problem of insufficient depth of the recesses. This flexographic printing plate production method comprises: an exposure step for subjecting a flexographic original plate, which is at least sequentially equipped with a support, a photosensitive layer, and a mask portion having an image formed thereon, to irradiation with energy rays via the mask portion to expose the photosensitive layer; and a development step for removing unexposed portions of the photosensitive layer. The exposure step comprises a step for performing irradiation with energy rays in a state in which the mask portion and a film-like optical element are located, in this sequence from the photosensitive layer side, between an energy ray source and the photosensitive layer. The film-like optical element is an element that converges incoming energy rays to enhance directivity of the energy rays and emits the energy rays onto the mask portion.
Owner:FUJIFILM CORP
Lithographic printing plate precursor, method for producing lithographic printing plate, printing method, and method for producing aluminum support
The present invention provides an original plate for a planographic printing plate that has excellent oil-based cleaner printing resistance when used as a planographic printing plate, a method for manufacturing a planographic printing plate, a printing method, and a method for manufacturing an aluminum support. This original plate for a planographic printing plate has an aluminum support and an image recording layer disposed over the aluminum support, the aluminum support including an aluminum plate and an aluminum anodic oxide film disposed on the aluminum plate, the image recording layer being disposed on the anodic oxide film side of the aluminum support, and the area ratio of protrusions having a height from the average surface of 0.80 μm or greater, found by measuring a 400×400 μm range of the surface of the image recording layer side of the aluminum support using a non-contact three-dimensional roughness meter, being 20% or less.
Owner:FUJIFILM CORP
On-press development type lithographic printing plate precursor, method of preparing lithographic printing plate, and lithographic printing method
Provided are an on-press development type lithographic printing plate precursor having a support and an image-recording layer on the support in which the image-recording layer contains a coloring compound capable of having a coloring reaction with a decomposition product generated by exposure of the image-recording layer, and an on-press development type lithographic printing plate precursor having a support and an image-recording layer on the support in which the image-recording layer contains a compound represented by Formula 1C or Formula 2C and an electron-donating polymerization initiator. In Formula 1C and Formula 2C, R1C to R4C each independently represent a monovalent organic group, L1C and L2C each independently represent a divalent organic group, AC represents OH or NR5CR6C, and R5C and R6C each independently represent a monovalent organic group
Owner:FUJIFILM CORP
On-press developing lithographic printing plate precursor and method for producing printing plate
The present invention provides an on-press development type lithographic printing plate precursor and a method for manufacturing a printing plate, the on-press development type lithographic printing plate precursor having an image recording layer on a support, the image recording layer contains a chromophoric compound having a group that cleaves by infrared exposure, a polymerization initiator, a polymerizable compound, and a hydrogen-donating compound, and the hydrogen-donating compound is a compound different from the polymerization initiator, the polymerizable compound, the chromophoric compound, and the acid-cleaving compound. And a compound having a molecular weight of less than 3,000 and having at least one group selected from the group consisting of-OH,-NH-,-SO2-NH-,-SO2-OH,-CO-NH-, and-CO-OH in the molecule.
Owner:FUJIFILM CORP
Lithographic printing plate precursor, method of preparing a lithographic printing plate, and lithographic printing method
Provided are a lithographic printing plate precursor having excellent crystal precipitation suppressiveness, and a method of preparing a lithographic printing plate and a lithographic printing method in which the lithographic printing plate precursor is used. A lithographic printing plate precursor including a support and an image-recording layer on the support, in which the image-recording layer contains a non-onium-based polymerization initiator, a borate compound, an infrared absorber, and a compound A which is an onium salt with a cation having a shape index equal to or less than 2 times a shape index of a cationic moiety of the infrared absorber.
Owner:FUJIFILM CORP
Printing device and method for producing printed matter
Owner:SHUHO KK
Lithographic printing plate precursor
ActiveUS12487526B2LithographyPhotosensitive materials for photomechanical apparatusEngineeringPhotoinitiator
A lithographic printing plate precursor is disclosed including a support and a coating comprising (i) a photopolymerisable layer including a polymerisable compound, a photoinitiator and an asymmetrically substituted infrared absorbing compound.
Owner:ECO3 BV
Layered body
Provided is a laminate including a lithographic printing plate precursor and interleaving paper, in which the lithographic printing plate precursor is an on-press development type lithographic printing plate precursor containing an acid color developing agent in at least any of layers, and a pH of the interleaving paper is 5 or more.
Owner:FUJIFILM CORP
Support for lithographic printing plate, Lithographic printing plate precursor, Method for manufacturing a lithographic printing plate
The present application provides a support for a lithographic printing plate, a lithographic printing plate precursor, and a method for producing a lithographic printing plate precursor, the support for a lithographic printing plate being capable of obtaining a lithographic printing plate precursor excellent in scratch resistance by being combined with an image recording layer. The support for a lithographic printing plate of the present application is a support for a lithographic printing plate including an aluminum plate and an anodized film of aluminum provided on the aluminum plate, a plurality of convex portions being present on the surface on the side of the anodized film of the support for a lithographic printing plate, the average value of the equivalent circle diameters of the cut surfaces of the convex portions in the positions higher than the position of the average height of the convex portions by 0.5 μm or more being 3.0 to 10.0 μm, and the density of the convex portions having a height higher than the position of the average height of the convex portions by 0.5 μm or more being 3000 to 9000 pieces / mm 2 .
Owner:FUJIFILM CORP
Lithographic printing plate precursor and method of use
A negative-working lithographic printing plate precursor has a negative-working infrared radiation-sensitive image-recording layer that has a) two or more free radically polymerizable components; b) an initiator composition capable of generating free radicals; and c) one or more infrared radiation absorbing cyanine dyes. The a) two or more free radically polymerizable components comprise a combination of a urethane (meth)acrylate and a polyester (meth)acrylate, which together, comprise 75-100 weight % of all free radically polymerizable components. The weight ratio of the urethane (meth)acrylates to the polyester (meth)acrylates is from 90:10 to and including 35:65. The urethane (meth)acrylates comprise one or more urethane linkages and at least 4 acrylate or methacrylate ester groups. Each of the one or more polyester (meth)acrylates is free of a urethane linkage and is represented following structure (I). These precursors are less sensitive to ambient ozone and can be infrared radiation imaged and developed on-press during lithographic printing.
Owner:EASTMAN KODAK CO