Abstract: 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, Rb1 and Rb3 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).

Abstract: 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 infrared absorber, a polymerization initiator, a polymerizable compound, and one or more compounds selected from the group consisting of a compound represented by Formula (1) and a compound represented by Formula (2) (in Formula (1) and (2), Ra1 and Ra2 represent an alkyl group, Rb1 and Rb3 represent an alkyl group, Rb2 and Rb4 represent an alkyl group, and EDG's each independently represent a hydrogen atom or an electron-donating group, provided that at least one of the four EDG's in Formula (1) represents an electron-donating group).

Abstract: The present technology relates to an imaging device, an imaging method, and a program that enable different imaging elements to align timings at which settings are reflected. The imaging device includes a control unit that controls a second imaging element that captures an image at a lower frame rate than the frame rate of a first imaging element. In a case where a synchronization signal supplied from the first imaging element is received, the control unit determines whether or not the current frame is a frame to be decimated. In a case where the control unit determines that the current frame is not a frame to be decimated, imaging is performed, and in a case where the control unit determines that the current frame is a frame to be decimated, drive for imaging is stopped. The present technology can be applied to an imaging device including a plurality of imaging elements, for example.

Abstract: 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 a polymerizable compound, a polymerization initiator, and an infrared absorber, and a color forming substance precursor, and a color forming substance generated from the color forming substance precursor has a maximal absorption wavelength in a wavelength range of 380 nm or more and less than 580 nm, at which an absorbance difference with respect to the color forming substance precursor is 0.1 or more, and a maximal absorption wavelength in a wavelength range of 580 nm or more and 750 nm or less, at which an absorbance difference with respect to the color forming substance precursor is 0.07 or more, and a method of preparing lithographic printing plate or a lithographic printing method, using the on-press development type lithographic printing plate precursor.

Abstract: The present invention provides an on-press development type lithographic printing plate precursor including, in the following order, a support, an image-recording layer, and a protective layer, in which the image-recording layer contains a) a polymerizable compound, b) an infrared absorber, c) a polymerization initiator, and d) a color forming substance precursor, and the protective layer contains an ultraviolet absorber, and a method of preparing a printing plate.

Abstract: Provided is a lithographic printing plate precursor having a support and an image-recording layer on the support, in which the image-recording layer has an infrared absorber, a polymerization initiator, a polymerizable compound 1, a polymerizable compound 2, and a polymerizable compound 3, in which a molecular weight of the polymerizable compound 1 is less than 1,000, a weight-average molecular weight of the polymerizable compound 2 is 1,000 or more and 3,000 or less, and a weight-average molecular weight of the polymerizable compound 3 is more than 3,000 and 15,000 or less.

Abstract: Provided is an on-press development type planographic 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 1 or Formula 2 and an organic compound having a group 13 element. Also provided are a method of preparing a planographic printing plate or a planographic printing method in which the on-press development type planographic printing plate precursor is used, and a coloring agent represented by Formula 1 or Formula 2. In Formula 1 and Formula 2, R1 to R7 each independently represent a hydrogen atom or a monovalent organic group, and L1 and L2 represent a divalent organic group.

Abstract: Provided are: a lithographic printing plate precursor having a support and an image-recording layer on the support, in which the image-recording layer contains an onium polymerization initiator, a borate compound, an infrared absorber, a chromogenic agent, and a compound A which is an onium salt formed of a cation having a shape index lower than a shape index of a cationic moiety of the onium polymerization initiator; a method of preparing a lithographic printing plate using the lithographic printing plate precursor; and a lithographic printing method.

Abstract: 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 ?L 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.

Abstract: 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.

Abstract: Provided are a planographic printing plate precursor including a support, and an image recording layer on the support, in which the image recording layer contains an infrared absorbing agent, a polymerization initiator, and a core-shell particle, a core portion of the core-shell particle contains a resin A containing a functional group A, and a shell portion of the core-shell particle contains a resin B containing a functional group B that is bondable to or interactable with the functional group A and a dispersion group; a method of preparing a planographic printing plate using the planographic printing plate precursor; and a planographic printing method carried out using the planographic printing plate precursor.

Abstract: 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.

Abstract: Provided is a lithographic printing plate precursor having a support, an image-recording layer, and an overcoat layer in this order, in which the image-recording layer contains a polymerization initiator, a polymerizable compound, and particles, and the overcoat layer contains a discoloring compound. Also provided is a method of preparing a lithographic printing plate or a lithographic printing method that uses the lithographic printing plate precursor.

Abstract: An on-machine development lithographic printing plate precursor includes an image-recording layer on an aluminum support having an anode oxide film, wherein an end portion of the lithographic printing plate precursor has a shear droop shape, the image-recording layer contains a compound having a support adsorptive property, having a molecular weight of 1,000 or less, and not having an unsaturated double bond group in a molecule, and a content of the compound is substantially the same in a plane of the image-recording layer.

Abstract: Provided is a lithographic printing method including a preparing step of preparing a lithographic printing plate precursor which includes an aluminum support, and an image recording layer containing an acid color developing agent and an acid generator on the aluminum support, an exposing step of exposing the lithographic printing plate precursor, a developing step of supplying acidic dampening water to the exposed lithographic printing plate precursor and removing a non-image area of the image recording layer, and a printing step, in which the aluminum support includes an anodized aluminum film, the anodized film has micropores, and a value ?S is 15% or greater and 60% or less.

Abstract: Provided is a lithographic printing plate precursor having a support and an image-recording layer on the support, in which the image-recording layer has an infrared absorber, a polymerization initiator, a polymerizable compound 1, a polymerizable compound 2, and a polymerizable compound 3, in which a molecular weight of the polymerizable compound 1 is less than 1,000, a weight-average molecular weight of the polymerizable compound 2 is 1,000 or more and 3,000 or less, and a weight-average molecular weight of the polymerizable compound 3 is more than 3,000 and 15,000 or less.

Abstract: 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.

Abstract: Provided is an on-machine development type planographic printing plate precursor having a support and an image-recording layer on the support, in which the image-recording layer contains an initiator, an infrared absorber capable of donating electrons to the initiator, and a color-developing substance precursor, the image-recording layer can form an image by exposure to infrared laser, and in a case where the image-recording layer is exposed to an infrared laser with a wavelength of 830 nm at an energy density of 110 mJ/cm2, a brightness change ?L of the image-recording layer before and after the exposure is 3.0 or more. Also provided are a method for preparing a planographic printing plate or a planographic printing method in which the on-machine development type planographic printing plate precursor is used.

Abstract: Provided is a lithographic printing plate precursor having an aluminum support and an image-recording layer on the aluminum support, in which the image-recording layer contains an infrared absorber, a polymerization initiator, a polymerizable compound, and an addition polymerization-type resin having a dispersible group, and in a case where a capacitance Cp of the lithographic printing plate precursor is set to satisfy Cp (t)/Cp (20 seconds)=0.95, t satisfies t<12 seconds or the capacitance Cp of the lithographic printing plate precursor satisfies Cp (0 seconds)>400 nF. Also provided are a method for preparing lithographic printing plate or a lithographic printing method using the lithographic printing plate precursor. The capacitance Cp of the lithographic printing plate precursor is measured by bringing at least a measurement portion of the image-recording layer into contact with a 2% by mass aqueous sodium chloride solution at 25° C.

Abstract: Provided are a lithographic printing plate precursor including a support, and an image recording layer on the support, in which the image recording layer contains an infrared absorbing agent, a polymerization initiator, and core-shell particles, a core portion of each core-shell particle contains a resin A containing a functional group A, and a shell portion of the core-shell particle contains a resin B containing a functional group B that is bondable to or interactable with the functional group A and a polymerizable group: a method of preparing a lithographic printing plate using the lithographic printing plate precursor; and a lithographic printing method carried out using the lithographic printing plate precursor.