WO2005091068A1 - 画像形成方法、平版印刷版原版および平版印刷方法 - Google Patents
画像形成方法、平版印刷版原版および平版印刷方法 Download PDFInfo
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- WO2005091068A1 WO2005091068A1 PCT/JP2005/006200 JP2005006200W WO2005091068A1 WO 2005091068 A1 WO2005091068 A1 WO 2005091068A1 JP 2005006200 W JP2005006200 W JP 2005006200W WO 2005091068 A1 WO2005091068 A1 WO 2005091068A1
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- lithographic printing
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/20—Exposure; Apparatus therefor
- G03F7/2051—Exposure without an original mask, e.g. using a programmed deflection of a point source, by scanning, by drawing with a light beam, using an addressed light or corpuscular source
- G03F7/2053—Exposure without an original mask, e.g. using a programmed deflection of a point source, by scanning, by drawing with a light beam, using an addressed light or corpuscular source using a laser
- G03F7/2055—Exposure without an original mask, e.g. using a programmed deflection of a point source, by scanning, by drawing with a light beam, using an addressed light or corpuscular source using a laser for the production of printing plates; Exposure of liquid photohardening compositions
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- the present invention relates to an image forming method, a lithographic printing plate, and a lithographic printing method in the printing field. More specifically, the present invention relates to an image forming method using a light source that emits light within a wavelength range of 250 to 420 nm, a lithographic printing plate precursor, and a lithographic printing method.
- high-sensitivity printing plates for conventional laser ⁇ applications that are compatible with Ar lasers and FD-YAG lasers can be used to remove plates from Danpono under red light, load them into a plate setter cassette, Occasionally, the plate was manually inserted into the platesetter, and all work had to be done under dark red light, making work much worse.
- ordinary diazo-type printing plates have good workability because they can be handled under yellow light or UV-cut white light. It was a big demand.
- Patent Document 1 discloses ( ⁇ ) an aluminum support and ( ⁇ ) a laser sensor.
- a lithographic printing plate precursor characterized by exposing a lithographic printing plate precursor having an optical recording layer using an inner drum type plate setter using a semiconductor laser beam in the ultraviolet to visible shell region (360 to 450 nm). The printing method is described. According to the $ ⁇ method, it can be handled under yellow light, and no capri force S is generated even when exposure is performed by an inner drum type plate setter.
- One of the simple ⁇ ⁇ methods to respond to this is, for example, a lithographic printing plate with an image recording layer that can be dissolved or dispersed in printing ink and ⁇ or fountain solution.
- a method called on-press development to obtain a lithographic printing plate by supplying a printing ink and / or a fountain solution to the plate to remove an unexposed portion of the image recording layer has been proposed.
- Specific methods of on-press development include, for example, lithographic printing having an image recording layer that can be dissolved or dispersed in a fountain solution, an ink solvent or an emulsion of the fountain solution and the ink! Method, the method of mechanically removing the image recording layer by contact with the rollers and blanket of the printing press, the force of the image recording layer or the contact between the image recording layer and the support by penetration of dampening water, ink solvent, etc. After weakening the adhesive strength of the image recording layer, the image recording layer is mechanically removed by dissemination with a roller or a blanket.
- the “development step” means that a device other than a printing machine (usually an automatic developing machine) is used and a liquid (usually an alkaline developing solution) is brought into contact therewith. This refers to the process of removing the image recording layer of the lithographic printing plate precursor and exposing the surface of the hydrophilic support.
- “On-press development” refers to the use of a printing machine to prepare a liquid (usually printing ink and black or white ink). Fountain solution) to remove the image recording layer of the lithographic printing plate precursor and expose the surface of the hydrophilic support.
- Patent Literature 2 discloses polyvinylpyrrolidone, It is noted that a photosensitive plate containing an acid, an olefinic unsaturated monomer, a photoinitiator and the like can be used to obtain a printing plate that can be immediately mounted on a printing press and printed without being subjected to post-exposure treatment.
- the photoinitiator used here had problems in sensitivity and fog after exposure.
- Patent Document 3 also discloses a photosensitive lithographic printing plate (lithographic printing plate precursor) having a photosensitive layer (image recording layer) having a two-layer structure composed of a photosensitive layer and a photosensitive hydrophobic layer thereon. ) Is described.
- This photosensitive lithographic printing plate can be immediately mounted on a printing press and printed without any post-exposure processing. However, printing durability was still insufficient due to insufficient adhesion between the upper and lower layers.
- Patent Literature 4 describes a lithographic printing plate precursor in which an image forming layer in which hydrophobic thermoplastic polymer particles are dispersed in a rice W binder is provided on a »support. Patent Literature 4 discloses that the lithographic printing plate precursor is exposed to infrared laser so that hydrophobic thermoplastic polymer particles are coalesced by heat to form an image, and then mounted on a cylinder of a printing machine. It is described that on-press development is possible with water and ⁇ or ink.
- Patent Document 5 discloses a negative type lithographic printing plate using a photosensitive resin containing a polymer having a functional group that is an acid group or a salt thereof and a photocurable functional group and a photoinitiator. It describes that printing is possible after exposure without the need for an imaging step.
- Patent Document 6 also discloses that (a) a polymer soluble in 7 water or dispersible in water, (b) at least one or more photopolymerizable ethylenically unsaturated double bonds on a surface-treated aluminum support.
- an intermediate layer containing a compound having a polymerization reactive group and a support adsorptive group is provided between the support and the photopolymer layer in order to improve adhesion. It is known to provide.
- Patent Document 7 discloses a solgenole intermediate layer between a support and a photopolymerizable layer
- Patent Document 8 discloses a sol-gel intermediate layer to which a phenolic compound or a phosphoric acid compound is added.
- those containing silicate are mainly used as the developing solution.
- Patent Document 9 an organic phosphoric acid compound is used as an intermediate layer, and a phosphono group, which is an acidic group, is rapidly dissociated in an alkali developing process, loses interaction with a support, and causes a non-image area. It is said that the surface is given a high 3 ⁇ 47j property by the gas that is at least partially removed or by dissociation.
- Patent Document 1 Japanese Patent Application Laid-Open No. 2000-35056
- Patent Document 3 Japanese Patent Application Publication No. 6-5209231
- Patent Document 4 Patent No. 29383897
- Patent Document 5 International Publication No. WO966 / 33431 Pamphlet
- Patent Document 6 JP-A-2000-39711
- Patent Document 7 JP-A-7_159983
- the purpose of the present invention is to provide a lithographic printing plate, which is capable of printing by on-press development and is excellent in on-press developability, printing durability, and stain resistance.
- an image recording layer containing (A) a polymerization initiator, (B) a polymerizable compound, and (C) a binder polymer, and is photosensitive in a wavelength range of 250 nm to 420 nm.
- An image forming method wherein a lithographic printing plate is exposed with a laser beam having a wavelength in the range of 250 nm to 420 nm in a period of 1 millisecond or less between drawing B pixels.
- the support contains (A) a polymerization initiator and (B) a polymerizable compound and is photosensitive in the wavelength range of 25 O nm to 420 nm.
- a lithographic printing plate precursor comprising: a compound (D) having a polymerizable group and a support-adsorbing group in at least the image-recording layer or another layer, which has an image-recording layer removable by water.
- Wavelength 2 having (A) a polymerization initiator, (B) a polymerizable compound, and (F) a filler on a support and having an image recording layer removable by a printing ink and / or fountain solution.
- a lithographic printing plate precursor that can record images with a light source that emits light in the range of 50 to 420 nm.
- a lithographic printing method characterized by supplying a printing ink and a dampening solution to perform printing.
- the mechanism of action relating to the image forming method of the present invention is not clear, but is presumed as follows. That is, the light sources conventionally used for image recording are Ar (488, 54.5 nm), FD-YAG (532 nm) lasers, metal halide lamps, etc. Since imagewise exposure is performed with light in the range of 100 nm, the lithographic printing plate precursor has photosensitivity in that range, has a large overlap with room light having a main emission band in the visible region, and Exposure at low to medium illuminance and room light and the same light intensity as the room light caused the same response, and unnecessary image formation for room light was a problem.
- the wavelength range is set to 250 ⁇ ⁇ !
- the wavelength range is set to 420 nm, overlap with room light can be minimized, and unnecessary image formation due to irradiation of room light can be suppressed.
- the optical power required for swelling varies greatly depending on the speed of the amount of oxygen flowing into the film. This can be expressed phenomenologically as follows.
- the amount of radioactive ray generated N is proportional to the exposure energy / regergy J to be irradiated.
- the exposure energy J required for image formation requires a higher irradiation energy than J o.
- the irradiation time of one pixel to 1 millisecond or less when forming an image on a plate, it becomes possible to reduce the irradiation energy applied to the desired image formation, and it is illuminated with low illuminance for several minutes or more. It is presumed that the safety in the white light can be ensured because the power in the light room (under the white light) does not occur without high irradiation energy.
- the wavelength 250 ⁇ ⁇ ! An image forming method that can record images using a light source that emits light in the range of up to 420 nm, achieves both high sensitivity and white light safety, and provides high image quality with good fine line reproducibility You can use the lithographic printing method. Further, according to the present invention, it is possible to record an image using a light source that emits light having a wavelength in a range of 250 nm to 420 nm, and after the image recording, without performing a developing process, the apparatus can be used. On-press development and printing durability A lithographic printing plate precursor with excellent resistance and stain resistance can be obtained.
- FIG. 1 This shows the recording sensitivity of a recording material that generates force when exposed to a white fluorescent lamp for 2 hours.
- FIG. 2 is a diagram showing a light emission distribution of a white fluorescent lamp.
- FIG. 3 is a diagram showing irradiation energy required for forming a surface image with respect to irradiation time.
- FIG. 4 is a conceptual diagram of a light beam scanning device for scanning the inner surface of a cylinder used in the present invention.
- FIG. 5 (a) and (b) are a plan view and a side view of an embodiment showing the configuration of an outer drum type image recording apparatus used in the present invention, respectively.
- FIG. 6 is a cross-sectional view in the sub-scanning direction along the optical axis showing a configuration of an exposure head using a DMD spatial light modulator.
- the wavelength of the light source used in the present invention is 250 nm to 400 nm.
- an Ar ion laser (364 n, 351 nm, 10 mW to 1 W)
- an r ion laser (356 nm, 351 nm, 1 0 mW ⁇ 1 W)
- He- Cd laser (3 25nm, 1 mW ⁇ 10 OmW)
- YAG YAG
- the preferred laser is an A1GaInN semiconductor laser (commercially available InGaN-based laser) from the viewpoints of high-intensity short-time exposure that can speed up Semiconductor lasers (375 nm or 405 nm, 5 to 10 OmW), production of high-output 3.55 nm lasers in terms of rawness, and the most white fluorescent light emission in terms of wavelength suitability This is a 2666 nm laser with small spectral overlap and high sensitivity.
- A1GaInN semiconductor laser commercially available InGaN-based laser
- the lithographic printing plate exposure apparatus of the scanning exposure method there are an inner drum (inner drum) method, an outer drum (outer drum: ⁇ ), and a flatbed method as an exposure mechanism, and the inner drum method is preferable in terms of quality and cost. From the viewpoint of production and production, the external drum method is preferable.
- FIG. 4 is a conceptual diagram showing a cylindrical inner surface scanning type light beam scanning device according to one embodiment of the present invention.
- 1 is a UV laser as a light beam output means.
- the intensity of the UV laser beam Lo is modulated by the electro-optic modulation element 2 in accordance with the image signal, and the beam diameter is expanded and changed in the lenses 1 and L2 constituting the beam expander.
- This beam L. Is guided into the drum D along the center axis of the drum (cylindrical) D by the half mirror 3 and the mirror 4.
- a condenser lens L3 and a spinner SP forming a scanning optical system are provided on the central axis of the drum D.
- This spinner SP has a reflection surface of about 45 ° with respect to the center axis (rotation axis), and is rotated at high speed by a motor.
- the beam guided to the spinner SP is focused on the inner peripheral surface of the drum D or the recording sheet S through the beam expander EX and the condenser lens L3 on the rotation axis.
- the optical power of the modulated laser beam can be calibrated by measuring the laser beam split by the half mirror 3 with the photodetector 5.
- the condensing lens L3 and the spinner SP are moved in the sub scanning direction along the center axis of the drum by moving means (not shown) while the condensing beam is scanned at high speed by the spinner.
- moving the recording medium at a constant speed the recording medium mounted on the inner peripheral surface of the drum D is two-dimensionally scanned and exposed by exposure light emitted from one UV laser to form an image corresponding to image data. Be recorded.
- FIG. 5 is a conceptual diagram of the configuration of an after-drum system which is an embodiment of the image recording apparatus of the present invention.
- FIGS. 6A and 6B are a plan view and a non-regular view of the image recording device 10 of the present embodiment, respectively.
- the image recording device 10 modulates the light emitted from the illumination light source according to image data by a spatial light modulation element array, and uses the modulated exposure light to form an image corresponding to the image data.
- the recording is performed on a recording medium, and includes an exposure head 12 and a drum 14.
- the exposure head 12 generates exposure light modulated in accordance with image data.
- the exposure head 12 includes a broad area array laser diode (hereinafter, referred to as BALD) 16 as an illumination light source, a cylindrical lens 18, and a collimating lens 20. , Two plates 22, a ferroelectric liquid crystal shutter array 24, which is a spatial light modulation element array, a pen 2 plate 26, an analyzer 28, and two lenses 30, 32 of a variable magnification imaging optical system. And with! / Puru.
- BALD broad area array laser diode
- an LD array in which individual semiconductor laser chips as shown in JP-A-2003-158332 may be arranged in a line.
- the laser light emitted from the laser array 16 is converged by the cylindrical lens 18 in the vertical direction in FIG. 5 (b), and is subsequently collimated by the collimating lens 20 into parallel light in the vertical direction in FIG. 5 (a).
- FIG. 5B is converged in the vertical direction in the middle;
- the polarization state of the laser light is rotated by 45 ° in a direction perpendicular to the traveling direction by the ⁇ 2 plate 22, and the laser light is converted into image data by the ferroelectric liquid crystal shutter array 24. Modulated accordingly.
- the polarization state of the laser light transmitted through the ferroelectric liquid crystal shutter array 24 is rotated by 9 ° by the ferroelectric liquid crystal shutter array 24, and further, the light is shifted by the ⁇ / 2 plate 26.
- the polarization state is rotated by 45 ° and Alt is moved to the analyzer 28.
- the analyzer 28 allows only the laser light rotated at a predetermined angle to pass through the polarization state force S of the light, and blocks other laser light.
- the laser light that has passed through the analyzer 28 is imaged at a predetermined magnification on a recording medium mounted on the drum 14 by two lenses 30 and 32 of the variable magnification imaging optical system.
- the exposure head 12 When recording an image on a recording medium, the exposure head 12 is moved at a predetermined constant speed in the sub-scanning direction (axial direction of the drum 14) while emitting exposure light modulated according to image data. You.
- the drum 14 is a support for the recording medium.
- the recording medium is mounted on the outer peripheral surface of the drum 14, and the drum 14 is rotated at a predetermined constant speed in a predetermined direction (a direction opposite to the main scanning direction).
- the drum 14 is rotated at a predetermined constant speed in a direction opposite to the main running direction by the rotating means of the drum 14, and the exposure is also not shown.
- the exposure head 12 By moving the exposure head 12 at a predetermined constant speed in the sub-scanning direction by the moving means of the head 12, the recording medium mounted on the outer peripheral surface of the drum 14 is exposed. Scanning exposure is performed 27 times with exposure light emitted from the memory 12 to record an image corresponding to image data.
- the SLM is not limited to the ferroelectric liquid crystal shutter array 24.
- a known transmission type and a reverse SLM such as a GLV (Grating Light Valve), a DMD (Digital Nore Micro Mirror Device) and the like. Both LM force S are available.
- the use of the drum 14 is not limited, and a flat plate may be used as a support for the recording medium.
- a ferroelectric liquid crystal shutter array 24 that performs linear modulation is used as the spatial light modulation element array, and the exposure head 12 and the drum 14 are relatively moved.
- the recording material is scanned and exposed 27 times.
- the present invention is not limited to this.
- a spatial light modulation element array that can perform surface modulation is used, the exposure light is scaled up and down at a predetermined magnification, and the surface is collectively scanned without scanning the recording material. Exposure is also possible.
- multi-channel exposure using an optical system consisting of a combination of a 375 nm or 405 nm semiconductor laser with a spatial modulation element, such as a DMD modulation element or a GLV modulation element has resulted in high productivity and low cost. It is advantageous and preferable. Further, an inner drum system using one laser beam having any wavelength selected from 365 nm, 355 nm, and 266 nm is advantageous for high-speed exposure and cost reduction, and thus is preferable.
- the optical system using the DMD modulator is described in JP-A-2004-012899, and the optical system using the GLV modulator is described in JP-A-2000-168136 and 2001-162866. No., etc.
- the pixel residence time is preferably as short as possible to minimize competition with oxygen, but is preferably 1 millisecond or less, more preferably 500 / second or less, and most preferably 100 ⁇ s. It is as follows. If the time is longer than 1 millisecond, polymerization inhibition by oxygen increases and image formation deteriorates.
- the lithographic printing plate of the present invention is exposed imagewise and then subjected to development processing, or an oil-based ink without any development processing step. And an aqueous component are supplied for printing.
- a conventional alkaline aqueous solution can be used as the developing solution used in the case of performing the developing treatment with the developing solution.
- a conventional alkaline aqueous solution can be used.
- inorganic alkali agents such as potassium, ammonium, sodium borate, potassium, ammonium, sodium hydroxide, ammonium, potassium and lithium.
- the developer in which the effect of the present invention is further exhibited is an aqueous solution containing a metal silicate having a pH of 12 or more.
- the aqueous solution of the alkali metal silicate is made up of the ratio of the alkali metal oxide M 20 to the alkali metal oxide S i 0 2 , which is a component of the silicate (generally, [S i ⁇ 2 ] / C 20 ). are possible adjustment of developability in molar ratio) and the concentration, for example, as disclosed in JP 54-6 2004 JP, the molar ratio of S i 0 2 ZNa 2 0 is 1.0 to 1.
- the pH of the developer is preferably in the range of 9 to 13.5, more preferably in the range of 10 to 13.
- the temperature of the developer is 15 to 40 ° C.
- the temperature is more preferably 20 to 35 ° C.
- the development time is preferably 5 to 60 seconds, more preferably 7 to 40 seconds.
- an aqueous solution having a higher reversal strength than the developing solution is added to the developing solution, so that the image in the developing tank for a long time is added. It is known that a large amount of lithographic printing plates can be processed without changing the liquid.
- This replenishment system is also preferably applied in the present invention.
- JP 54 - 62 mole ratio of S i 0 2 / N a 2 0 of 004 is disclosed in Japanese Rereru such a developing solution from 1.0 to 1.5 (i.e. [S I_ ⁇ 2] / CNa 2 0] is from 1.0 to 1.5) comprising, S I_ ⁇ content of 2 using water?
- the current method comprising at least 20% by weight of a force rim based on gram atoms of alkali metal is preferably used.
- the lithographic printing plate developed in this manner is treated with water ⁇ , surfactant, etc., as described in JP-A-54-8002, JP-A-51-115045, and JP-A-59-58431. Is post-treated with a desensitizing solution containing a rinse liquid containing gum arabic, gum arabic, derivatives and the like. In the post-processing of the lithographic printing plate I of the present invention, these processes can be used in various combinations.
- the lithographic printing plate obtained by such a process is set on an offset printing machine and used for printing a large number of sheets.
- the conventionally known plate cleaner power S for the PS plate is used as a plate cleaner used to remove stains on the plate during printing.
- CL-1, CL-2, CP, CN-4, CN, CG-1, PC-1, SR, IC manufactured by Fuji Photo Film Co., Ltd.
- Lithographic printing used in the method of the present invention ⁇
- the entire surface may be heated before exposure, during exposure, or between exposure and development.
- an image forming reaction in the image recording layer is promoted, and advantages such as sensitivity / improvement of printing durability and stabilization of sensitivity may be caused.
- it is also effective to heat the entire surface of the image after development or to expose the entire surface to light.
- heating before development is preferably performed under mild conditions of 150 ° C or less. If the temperature is too high, problems such as covering over the unexposed portions occur. Very strong conditions are used for heating after development. It is usually in the range of 200-500 ° C. If the value is too low, sufficient image enhancing effect cannot be obtained, and if the value is too high, problems such as deterioration of the support and heat of the image area occur.
- In-machine development> As a method of printing without going through the development process, specifically, a method of exposing the lithographic printing plate and then mounting it on a printing machine without going through the development process, and printing the lithographic printing plate precursor into the printing machine After exposure to a printing press, printing is performed as it is.
- the exposed portion of the image recording layer of the lithographic printing plate precursor that has been exposed imagewise becomes insoluble by polymerization. If the exposed lithographic printing plate is supplied with an oil-based ink and an aqueous component without being subjected to a development process such as a wet development process, printing is performed. The uncured image recording layer is removed by dissolving or dispersing, and the surface of the hydrophilic support is exposed at that portion. On the other hand, in the exposed area, the polymerized and cured image recording layer remains to form an oil-based ink receiving area (image area) having a lipophilic surface.
- the aqueous component adheres to the exposed ⁇ surface, and the oil-based ink is deposited on the image recording layer in the (dew) ⁇ area, and printing is started.
- the zk component or oil-based ink may be supplied to the plate first.However, in order to prevent contamination by the image recording layer in the unexposed area, the zk component is first used. It is preferable to supply oily ink. Normal fountain solution and printing ink for lithographic printing are used as the zk component and the oily ink.
- the lithographic printing plate precursor is developed on-press on an offset printing press and used as is for printing a large number of sheets.
- the polymerization initiator used in the present invention is a compound that generates a radical by light energy to initiate and promote the polymerization of a compound having a polymerizable unsaturated group.
- the polymerization initiator is a worm or a polymerization initiator. It is a compound that absorbs light of 250 nm to 420 nm to generate radicals by combining the agent with a later-described augmentation.
- a photo-radical generator a known polymerization initiator or a compound having a bond having a small bond dissociation energy can be appropriately selected and used.
- the emission spectrum intensity of white light is strong in the visible region exceeding 40 O nm, and a polymerization initiator having sufficient photosensitivity in that region is liable to cause fogging under white light. Increase It is preferable that the absorption maximum of iS ⁇ IJ be 400 nm or less.
- Examples of the compounds that generate the above-mentioned radicals include, for example, organic halogen compounds, carbonyl compounds, organic peroxides, azo compounds, azide compounds, methacrylate compounds, hexaryl ruimidazole compounds, organic boron compounds, disulfone compounds, And oxime ester compounds and oxime salt compounds.
- organic nodogen compound examples include Wakabayashi et al., "Bull Chem. Soc Japan", 42, 2924 (1969), U.S. Pat. No. 3,905,815, ⁇ JP 46-4605, JP 48-36 281, JP 53-1 33428, JP-B 55-32070, JP 60-239736, JP 61-169 835 JP-A-6-16-19837, JP-A-62-58241, JP-A-62-212401, JP-A-63-70243, JP-A-63-298339 Issue, MP Hu tt "J urna 1 of he terocyclic oh em istry ⁇ (No d),
- s-triazine derivatives having at least one mono-, di- or trihalogen-substituted methinole group attached to the s-triazine ring and oxaziazole derivatives attached to the oxaziazole ring.
- Examples of the above carbonyl compounds include benzophenone, Michler's ketone, and 2-methylbenzo.
- Benzophenone derivatives such as phenone, 3-methinobenzophenone, 4-methinobenzophenone, 2-chlorobenzophenone, 4-bromobenzophenone, 2-carboxybenzophenone, and 2,2-dimethoxy-12-phenyl Acetofphenone, 2,2-diethoxyacetophenone, 1-hydroxycycline hexinolephenylenoketone, 1-hydroxyethoxy-2-methinole phenylpropanone, 1-hydroxyl mouth xy-1-methinoleethyl- (p-isopropynolepheninole ) Ketone, 1-hydroxy-1- (p-dodecinolephenyl) ketone, 2-methyl- (4,-(methylthio) pheninole) -2-morpholino-1-propanone, 1,1,1-trichloro Mouth Methinole (
- azo compound for example, azo compounds described in Japanese Patent Application Laid-Open No. H08-108821 can be used.
- organic peroxides examples include, for example, trimethinoresic hexanone peroxide, acetylacetone peroxide, 1,1-bis (tert-ptinoleperoxy) -1,3,3,5- Trimethylcyclohexane, 1,1-bis (tert-butylperoxy) cyclohexane, 2,2-bis (tert-butylperoxy) butane, tert-butylhydroxide, cumene hydroperoxide , Disopropylbenzene hydroperoxide, 2,5 dimethinohexane 1,2,5 dinodidrophoxide, 1,1,3,3-tetramethylbutyl hydroperoxide, tert-butylmethyl propyl peroxide, dic Minoleveroxide, 2,5-dimethyl-2,5-di (tert-butylphenolepoxy) hexane, 2,5-oxanoylpa Oxide, succ
- meta-mouth compound examples include JP-A-59-152396, JP-A-61-151197, JP-A-63-41484, JP-A-2-249, and JP-A-2-4705.
- titanocene compounds described in JP-A-5-83588 for example, di-cyclopentageninole, Ti-bis-pheninole, Sisik-open pentageninole, Ti-bis-1,2,6-difluorophenyl 1-yl, di-cyclopentagenenyl, T i-bis
- hexarybiimidazole compound examples include, for example, Japanese Patent Publication No. 6-29285, U.S. Pat. Nos. 3,479,185, 4,311,783, and 4,622,286.
- Examples of the organic boron compound include, for example, JP-A-62-143044, JP-A-62-150242, JP-A-9-188685, JP-A-9-1188686, JP-A-9-188710, and —131837, JP 2002-107916, Koyuki Patent No. 2764769, JP 2002-116539, and Ku ⁇ Ma, Martin “Rad Tech '98.
- Pr oceedinng Ap ril 19 Organic borate salts described in JP-A-6-157623, JP-A-6-175564, JP-A-6-175561, and the like.
- an organic boron oxosulfoium complex is disclosed in JP-A-6-1755.
- Japanese Unexamined Patent Publication No. 6-175553 Japanese Unexamined Patent Publication No. 6-175553
- an organoboronodonium complex described in Japanese Unexamined Patent Publication No. 9-188710
- an organoboron phosphonium complex described in Japanese Unexamined Patent Publication No. 9-188710 Japanese Unexamined Patent Publication No. 6-348011
- Japanese Unexamined Patent Publication No. 7-128785 Japanese Unexamined Patent Publication No. 7-128785.
- Examples of the disulfone compound include compounds described in JP-A-61-166544 and JP-A-2003-328465.
- the oxime ester compound is described in JCS Perkin II (1979) 1653-1660), JCS Perkin II (1979) 156-162, Journal of Photopolymer Science and Technology (1995) 202-232, and JP-A-2000-66385.
- JP 200 The compound of JP 200
- aium salt compounds examples include SI Schleininger, Photogr. Sci. Eng., 18, 387 (1974), TSBa1eta1, Polymer, 21, 423 (1980). ), U.S. Pat. No. 4,069,055, and ammonium salt described in JP-A-4-365049, and U.S. Pat. Nos. 4,069,055 and 4,069, No. 056, Phosphonium salt, EP 104,143, U.S. Pat. Nos. 339,049, 410,201, JP-A-2-150848, JP-A-2-296514 No.
- these rhodium salts function not as acid generators but as ionic radical polymerization initiators.
- the onium salt suitably used in the present invention is a salt of a sodium salt represented by the following general formulas (RI-I) to (RI-II).
- a r u represents ⁇ re Ichiru group a substituent 1 to 6 carbon atoms, which may have 20 or less, preferably les, the substituent 1 to carbon atoms 12 alkyl groups, 1 to 12 carbon atoms, alkenyl group, 1 to 12 carbon atoms, aryl group, 1 to 12 carbon atoms, alkoxy group, 1 to 12 carbon atoms, 1 to 12 carbon atoms Xyl group, halogen atom, carbon number 1 to 1 2 phenolic amino group, dialkynoleamino group of 1 to 12 carbon atoms, 1 to 12 carbon atoms of phenolyl amide or arylamide group, carbinole group, canolepoxyl group, cyano group, sulfonyl Groups, thioalkyl groups having 1 to 12 carbon atoms, and thioaryl groups having 1 to 12 carbon atoms.
- z u- represents a monovalent anion, specifically, a halogen ion, a perchlorate ion, a hexafenoleophosphate ion, a tetrafusololeroborate ion, a snolefonate ion, and a s / refinate ion Thiosulfonate ion and sulfate ion.
- perchlorate ion, hexafenoleophosphate ion, tetrafluoroboron ion, sulfonic acid ion and sulfinic ion are preferable.
- z 21- represents a monovalent anion.
- Specific examples include a halogen ion, a perchlorate ion, a hexafluorophosphate ion, a tetrafluoroborate ion, a sulfonate ion, a sulfinate ion, a thiosulfonate ion, and a sulfate ion.
- perchlorate ion, hexafluorophosphate ion, tetrafuronoboroborate ion, sulfonate ion, sulfinate ion, and carbonate ion are preferable from the viewpoint of stability and reactivity.
- R 31 , R 32 and R 33 each independently represent an aryl group, an alkyl group, an alkenyl group having 20 or less carbon atoms which may have 1 to 6 substituents, or Represents an alkyne / le group.
- aryl groups are preferred from the viewpoint of reactivity and stability.
- the substituent include an alkyl group having 1 to 12 carbon atoms, an alkenyl group having 1 to 12 carbon atoms, an alcohol group having 1 to 12 carbon atoms, an aryl group having 1 to 12 carbon atoms, and a carbon atom having 1 to 12 carbon atoms.
- halogen ion a perchlorate ion, a hexaf / leo-phosphate ion, a tetrafluoroporate ion, a sulfonate ion, a sulfinate ion, a thiosulfonate ion, and a sulfate ion.
- perchlorate ion, hexafluorophosphate ion, tetrafluorophenol ion, sulfonate ion, sulfinate ion, and carboxylate ion are preferable.
- carboxylate ion a more preferable one,
- JP-A-01-343742 JP-A 200-200 is particularly preferred.
- polymerization initiator examples include, but are not limited to, a triazine initiator, an organic halogen compound, an oxime ester compound, a diazonium salt, an odonium salt, and a sulfonium salt, particularly from the viewpoint of reactivity and stability. It is more preferable because a large amount of radicals are generated by short-time exposure.
- these triazine-based initiators, organic halogen compounds, oxime ester compounds, diazonium salts, odonium salts, and sulfonium salts-based polymerization initiators are sensitizers (hereinafter also referred to as sensitizing dyes). ) Is preferably used in combination. (4) The photopolymerization rate can be increased by using in combination with a sensitizer.
- Such an increase include benzoin, benzoin methyl ether, benzoneethyl ether, 9-full-year lenone, 2-chloro-one 9-f / leorenone, 2-methinole 9-phnoleolenone, 9-anthrone, 2-Bromo-9-anthrone, 2-ethinole-9-anthrone, 9,10-anthraquinone, 2-ethylu 9,10-anthraquinone, 2-t_butynole 9,10-anthraquinone, 2,6- 9,10-anthraquinone, xanthon, 2-methylxanthone, 2-methoxyxanthone, thioxanthone, benzinole, dibenzalacetone, p- (dimethylamino) phenylstyryl ketone, p- (dimethylamino) phenyl p —Methylsty
- R 14 represents an alkyl group (for example, methyl group, ethyl group, propyl group, etc.), or a substituted alkyl group (for example, 2-hydroxyethyl group, 2-methoxyethyl group, canolepoxymethyl group, 2-carboxyethyl group).
- R 15 is an alkyl group (eg, a methyl group, an ethynole group, etc.), or an aryl group (eg, a phenyl group, a p-hydroxyphenyl group, Naphthinole group, chel group, etc.).
- Z 2 is a group of non-metallic atoms necessary for forming a nitrogen-containing heterocyclic nucleus usually used in cyanine dyes, for example, benzothiazoles (benzothiazole, 5-chlorobenzothiazonole, 6-chlorobenzozoazole, etc.) , Naphthothiazoles ( ⁇ -naphthothiazole, ⁇ -naphthothiazonole, etc.), benzoselenazonores (benzoselenazonole, 5-cloguchi benzoselenazone, 6-methoxybenzoselenazonole, etc.), naphthoselenazonole Classes (Hiichi naphthosenazonore, naphthosenazonolone, etc.), Benzoxazonoles (benzozoxazole, 5-methinolebenzoxazonole, 5-phenolenobenzoxazonole, etc.), naphthoxazo
- R 16 represents an alkyl group such as a methyl group and an ethyl group.
- a merocyanine dye described in JP-A-2000-147767 can also be used. Specifically, the following compounds can be mentioned. (0105)
- Each of these polymerization initiators and fibers is from 0 to 50 mass based on the total solids constituting the image recording layer. / 0, more preferably and particularly preferably 5 to 30 mass 0 I 0. can be added in a proportion of 0.820 mass 0/0. Within this range, good sensitivity and non-image at R3 ⁇ 45IJ Good stain resistance of the image portion is obtained.
- One of these polymerization initiators may be used alone, or two or more thereof may be used in combination. Further, these polymerization initiators may be added to the same layer as other components, or another layer may be provided and added thereto.
- the polymerizable compound that can be used in the present invention is an addition polymerizable compound having at least one ethylenically unsaturated double bond, and has at least one, preferably two or more ethylenically unsaturated bonds. Selected from compounds. Such compounds are widely known in the industrial field, and they can be used in the present invention without any particular limitation. They have chemical forms such as, for example, monomers, prepolymers, ie, dimers, trimers and oligomers, or mixtures thereof and copolymers thereof.
- Examples of monomers and their copolymers include unsaturated carboxylic acids (eg, acrylic acid, methacrylic acid, itaconic acid, crotonic acid, isocrotonic acid, maleic acid, etc.), and their esters and amides.
- unsaturated carboxylic acids eg, acrylic acid, methacrylic acid, itaconic acid, crotonic acid, isocrotonic acid, maleic acid, etc.
- esters and amides e.g, an ester of an unsaturated carboxylic acid and an aliphatic polyhydric alcohol compound or an amide of an unsaturated carboxylic acid and an aliphatic slope amine compound is used.
- reaction products of unsaturated carboxylic acid esters or amides having a nucleophilic substituent such as a hydroxyl group, a amino group or a mercapto group with a monofunctional or polyfunctional isocyanate or an epoxy and a monofunctional compound
- an I ⁇ condensed S ⁇ compound with a polyfunctional carboxylic acid is preferably used.
- an unsaturated compound having an electrophilic substituent such as an isocyanate group or an epoxy group, or an addition reaction product of an amide or an amide with a monofunctional or polyfunctional alcohol, an amine or a thionole
- substituted reactants of unsaturated carboxylic acid esters or amides having a leaving group such as a lipogen group or a tosyloxy group with monofunctional or polyfunctional alcohols, amines and thiols. is there.
- Luminous Aliphatic Specific examples of the monomer of an ester of a face alcohol compound and an unsaturated carboxylic acid J include acrylates such as ethylene dalicol diacrylate, triethylene glycol diatalylate, and 1,3-butanediol.
- methacrylic acid esters examples include tetramethylene glycol dimethacrylate, triethylene glycol 'dimethacrylate, neopentynoleglyco-1 / resin methacrylate, trimethylolpropane trimethacrylate, trimethylol / ethane methacrylate, and ethylene glycolone methacrylate.
- Examples of itaconic acid esters include ethylene glycolone resin itaconate, propylene glycol 1 / resitaitaconate, 1,3-butanediol diitaconate, 1,4-butanediol diitaconate, tetramethylene glycol diitaconate, and pentaerythritol diate.
- Examples of the crotonic acid ester include ethylene glycol dicyclone, tetramethylene glycolone rescrotonate, pentaerythritol monoresicrotonate, and sorbitol tetradicrotonate.
- isocrotonate examples include ethylene glycol diisocrotonate, pentaerythritol diisocrotonate, and sorbitol tetraisocrotonate.
- S maleic acid examples include tellurium include ethylene glycol dimaleate, triethylene glycolose remalate, pentaerythritol dimaleate, and sorbitol tetramaleate.
- esters examples include, for example, aliphatic alcohol esters described in JP-A-51-47334 and JP-A-57-196231, and JP-A-59-5240 and JP-A-59-5241. And those having an aromatic skeleton described in JP-A-2-226149 and those containing an amino group described in JP-A-1-165613 are also preferably used. Further, the above-mentioned ester monomers can be used as a mixture.
- amide monomer of the aliphatic surface amine compound and the unsaturated carboxylic acid examples include methylenebis-acrylamide, methylenebis-methacrylamide, 1,6-hexamethylenebis-acrylamide, 6-Hexamethylenebis-methacrylamide, diethylenetriaminetrisacrylamide, xylylenebisacrylamide, xylylenebismethacrylanolamide, and the like.
- amide monomers include those having a cyclohexylene structure described in JP-B-54-21726. '' (0113)
- a urethane-based addition polymerization I compound produced by an addition reaction between isocyanate and a hydroxyl group is also suitable.
- a specific example is described in, for example, JP-A-48-41708.
- a vinyl perethane compound containing a polymerizable vinyl group is also suitable.
- R 4 and R 5 represent H or CH 3.
- urethane acrylates described in JP-A-51-37193, Hei 2-32293, ⁇ Hei 16-16765, and 58-49860, ⁇ 56-17654 Urethane compounds having an ethylene oxide skeleton described in the publications of JP-B-62-39417 and JP-B-62-39418 are also suitable.
- Japanese Patent Application Laid-Open Nos. 63-277653, 63-260909, and 1-123838 / 1999 By using a caropolymerizable compound having an amino sulfide structure in the molecule described in the publication, a photopolymerized compound having a very high photosensitivity can be obtained.
- Acrylate monomethacrylate from Tankankura of epoxy acrylate which has been reacted with acrylic acid can be mentioned.
- Specific saturated compounds described in JP-B-46-3946, JP-A-1-40337, and JP-A-1-40336, and burphosphonic acid-based compounds described in JP-A-2-25493, etc. Can also be mentioned.
- a structure containing a perfluoroalkyl group described in JP-A-61-22048 is preferably used.
- those described as photocurable monomers and oligomers in the Journal of the Adhesion Society of Japan, Vol. 1, 20, N. 7, pp. 300-308 (1984) can also be used.
- the content of unsaturated groups per molecule is high, and the structure is preferable. In many cases, bifunctional or more is preferable.
- those having three or more functional groups are preferable, and further, different functionalities and different polymerizable groups (for example, atalinoleate, methacrylate, styrene-based compound, by combination of 1 b of ether compound), a method for controlling both the sensitivity and strength is also effective.
- the selection and use of the polymer compound is also an important factor in terms of compatibility and dispersibility with other components in the image recording layer (eg, binder polymer, opening agent, colorant, etc.).
- the compatibility may be improved by using a low I ⁇ compound or by using two or more compounds in combination.
- a specific structure may be selected for the purpose of improving the adhesion between the substrate and the protective layer described below.
- the polymerizable compound is used in an amount of preferably 5 to 80% by mass, more preferably 25 to 75% by mass, based on the total solid content of the image recording layer. They are also used in war insects May be used in combination of two or more.
- the method of using the addition-polymerizable compound may be any appropriate structure, compounding, and adding amount from the viewpoints of the degree of polymerization inhibition due to oxygen, unraveling, brute force, refractive index change, surface tackiness, etc. It can be selected, and depending on the case, a layer composition such as undercoating or overcoating can be applied.
- a binder polymer can be used to improve the film strength and film properties of the image recording layer and to improve the on-machine phenomena.
- the binder polymer any known binder polymer can be used without limitation, and a film-forming linear organic polymer S is preferable.
- examples of such a binder polymer include an acrylic resin, a polyvinyl acetal resin, a polyurethane resin, a polyurea resin, a polyimide resin, a polyamide resin, an epoxy resin, a methacrylic resin, a polystyrene resin, a nopolak phenolic resin, and a polyester resin. , Synthetic rubber and natural rubber.
- the binder polymer preferably has a crosslinking property in order to improve the film strength of the image area.
- a crosslinkable functional group such as an ethylenically unsaturated bond may be introduced into the main chain or side chain of the polymer.
- the crosslinkable functional group may be introduced by copolymerization.
- polystyrene resin examples include poly-1,4-butadiene, poly-1,4-isoprene, and the like.
- polymers having an ethylenically unsaturated bond in the side chain of the molecule are polymers of acrylate or methacrylic acid ester or amide, and esters or amide residues (one COOR or one CONHR R). Are polymers having an ethylenically unsaturated bond.
- a crosslinkable binder polymer for example, free radicals (polymerization initiation radicals or growing radicals of the weight of the polymerizable compound) are added to the crosslinkable functional group, and the polymerizable polymer compound is polymerized directly or between polymer chains. Polymerization is carried out through the polymer to form a crosslink between the polymer molecules and cure. Alternatively, atoms in the polymer (eg, hydrogen atoms on the carbon atom adjacent to the functional 't' bridge group) are pulled out by free radicals to form polymer radicals, which are bonded together. Crosslinks are formed between the polymer molecules to cure.
- free radicals polymerization initiation radicals or growing radicals of the weight of the polymerizable compound
- the content of the crosslinkable group in the binder polymer is preferably 0.1 to 10.0 mmo 1 N per 1 g of the binder polymer. It is preferably from 1.0 to 7.5 Ommo1, most preferably from 2.0 to 5.5 mmol. Within this range, good sensitivity and good storage stability can be obtained.
- the binder polymer preferably has high solubility or dispersibility in ink, z, and fountain solution.
- the binder polymer is lipophilic, and in order to improve the solubility or dispersibility in the fountain solution, it is preferable to use a binder.
- the polymer is preferably HTR-like. For this reason, in the present invention, it is also effective to use a lipophilic binder polymer and a hydrophilic binder polymer in combination.
- Hydrophilic binder polymers include, for example, hydroxy groups, carboxyl groups, Boxylate, hydroxyethyl, polyoxyethyl, hydroxypropyl, polyoxypropynole, amino, aminoethynole, aminopropyl, ammonium, amide, carboxymethyl, sulfonic, phosphate, etc. Those having a hydrophilic group are preferably mentioned.
- the binder polymer preferably has a mass average molecular weight of 500,000 or more, more preferably 10,000 to 300,000, and a number average molecular weight of 100,000 or more. More preferably, it is from 000 to 250,000.
- the polydispersity (weight average molecular weight Z number average molecular weight) is preferably from 1.1 to 10.
- the binder polymer may be any of a random polymer, a block polymer, a graft polymer and the like, but is preferably a random polymer.
- the binder polymer can be synthesized by a known method. Use when synthesizing Examples of the solvent to be used include tetrahydrofuran, ethylene dichloride, cyclohexanone, methinolethino ketone, acetone, methanolenole, ethanole, ethylene glycolone monomethynoateatene, ethylene glycolone monoetheneoleatene , 2-Methoxyxenoreacetate, diethylene glycol dimethyl ether, 1-methoxy-2-propanol, 1-methoxy-12-propinoleacetate, N, N-Dimethinolehonolemamide, N, N-Dimethylacetoamide , Tonolen, ethinole acetate, methinolate fuchsate, ethyl ethyl lactate, dimethinoresnorolefoxide, and water. These are used in warworms or as a mixture of two or more.
- radical polymerization initiator used when synthesizing the noinder polymer known compounds such as an azo initiator and a peroxide initiator can be used.
- the binder polymer may be used in war insects or in a mixture of two or more.
- the content of the binder polymer, the total solids in the image recording layer is preferably from 1 0-9 0% by weight, more preferably from 2 0 to 8 0 wt%, 3 0-7 0 weight 0 / 0 is even more preferred. Within this range, good image portion strength and image formability can be obtained.
- the polymerizable compound and the binder polymer are preferably used in an amount of 1Z9 to 7Z3 by mass ratio.
- a compound (D) having a polymerizable group and a support-adsorbing group in at least an image recording layer or another layer (hereinafter, also simply referred to as “compound (D)”). ) Is contained.
- the compound (D) preferably further has a ⁇ K imparting group.
- layers that can contain the above compound (D) include layers adjacent to the image recording layer such as a lower layer (intermediate layer) provided between the support and the image recording layer. Incorporation of the compound (D) into the inversion is particularly preferable because the effects of the present invention can be sufficiently exerted.
- the support-adsorbing group that can be contained in the compound (D) of the present invention includes, for example, a metal, a metal oxide, a TR acid group, and the like on a support that has been subjected to anodization or IfeK treatment. Generally, it is a group that causes an ionic bond, a zk elemental bond, a coordination bond, or a bond due to intermolecular force.
- an acid group or an oxa group is preferable.
- the acid dissociation (p K a) of 7 or less groups as acid group specifically one C OOH, one S_ ⁇ 3 H, one OS_ ⁇ 3 H, one P 0 3 H 2, _O P 0 3 H 2, one C ONH S_ ⁇ 2 - one S 0 2 NH S 0 2 - and the like.
- Particularly preferred among these is an P 0 3 H 2.
- the onium group is an oxide group generated from an atom of periodic group 5B (group 15) or group 6B (group 16), and more preferably an oxygen group generated from a nitrogen atom, a phosphorus atom, or an y atom.
- an ionic group derived from a nitrogen atom is particularly preferred.
- Examples of the polymerizable group that can be contained in the compound (D) of the present invention include an addition polymerization reactive group such as an alkyl group and an alkynyl group.
- Examples of the alkenyl group include vinyl group, vinyl group, aryl group, butyr group, and dialkylmaleimide group.
- Examples of the alkynyl group include an acetylene group and an alkylacetylene group. It is not limited to.
- a Bier group a propenyl group, an aryl group, an acryl group which is a derivative of a butyl group, and a metharyl group which is a derivative of a propyl group.
- hydrophilicity-imparting group examples include an ethylene oxide group ⁇ -(OCH 2 CH 2 ) ⁇ - ⁇ , wherein n is :! It is preferably, more preferably, 1 to 20.
- the presence or absence of the support adsorbability can be determined, for example, by the following method.
- a coating solution in which a test compound is dissolved in a readily soluble solvent is prepared, and the coating solution is coated on a support and dried so that the coating amount after drying is 30 mg / m 2 .
- the remaining amount of the test compound that has not been washed away is measured to calculate the amount of the support adsorbed.
- the residual amount may be measured by directly quantifying the amount of the residual compound or by quantifying the amount of the test compound dissolved in the washing solution. Examples of the method for quantifying a compound include fluorescence X-ray measurement, reflection spectral absorbance measurement, and liquid chromatography measurement.
- the compound having a substrate-adsorbing property refers to a compound that remains at least 15 mg / m 2 even after the above-mentioned washing treatment. (0136)
- the molecular weight of the compound (D) of the present invention is preferably 10,000 or less, more preferably 2,000 or less. (0137)
- n l: Unichemika Nore Co., Ltd .; Phosmer A, Kyoeisha Yushi Co., Ltd .; Light ester P_A,
- n l; Daihachi Chemical Industry Co., Ltd .; MR—204,
- n l; Daihachi Chemical Industry Co., Ltd.; AR-204,
- n l; Daihachi Chemical Industry Co., Ltd .; MR—208,
- n 1; Daihachi Chemical Industry Co., Ltd .; AR-208,
- n l; Ohno Chemical Co., Ltd .; AR-260,
- n 1; Daihachi Chemical Co., Ltd .; MR—260,
- n l; Daihachi Chemical Industry Co., Ltd.; PS_A4,
- n l: Ohno Chemical Co., Ltd .; MR-200, Nippon Kayaku Co., Ltd .; Kamar PM-2, Nippon Kayaku Co., Ltd .; Kamar PM-21,
- n l : Osaka Aeriyagaku Kogyo Co., Ltd. : Viscort 3PA.
- the compound having a polymerizable group and a support-adsorbing group includes (a 1) a repeating unit containing at least one ethylenically unsaturated bond and (a 2) at least one support-adsorbing group containing S
- a copolymer (E) having a repeating unit (hereinafter, also referred to as “specific copolymer”) may be used.
- the specific copolymer has a hydrophilic portion.
- Formula (IV) will display the repeating unit having at least one ethylenically unsaturated bond
- a 2 represents a repeating unit having at least one support-adsorbing group
- X and y represent the copolymerization ratio.
- the repeating unit represented by the following formula (A) is preferably represented by the following formula (A 1).
- each represents independently a hydrogen atom, an alkyl group having 1 to 6 carbon atoms, or a halogen atom.
- R 4 to R 6 each independently represent a hydrogen atom, an alkyl group having 1 to 6 carbon atoms, a halogen atom, an acyl group, or an acyloxy group.
- R 4 and R 5 or and may form a ring.
- L represents a divalent linking group selected from the group consisting of one CO—, one O—, one NH—, a divalent aliphatic group, a divalent aromatic group, and a combination thereof.
- L composed of combinations are shown below.
- the left side is connected to the main chain.
- the right side is bonded to the ethylenically unsaturated bond.
- L 2 _ CO—a divalent aliphatic group O— CO—
- L3 one CO—O—divalent aliphatic group—0—C0—
- L 5 one CO—NH—divalent aromatic group O—CO—
- L6 one CO—a divalent aromatic group one O—CO—
- L8 -CO—a divalent aliphatic group CO _ O—a divalent aliphatic group O-CO- L 9: -CO—a divalent aliphatic group O-CO—a divalent aliphatic group 1 O-CO- L 10: 1 CO—divalent aromatic group _ CO— O—divalent lunar aliphatic group _0_ CO—
- L 12 one CO—a divalent aliphatic group—CO_ ⁇ a divalent aromatic group—O— CO_
- L 13 — CO—a divalent aliphatic group 0_ CO—a divalent aromatic group 0_ CO—
- L 14 -CO monovalent aromatic group CO-O monovalent aromatic group
- O-CO- L 15 monoCO—divalent aromatic group
- the divalent aliphatic group means an anolexylene group, a substituted anolexylene group, an alkellen group, a substituted alkylene group, an alkylene group, a substituted alkynylene group or a polyalkyleneoxy group.
- an alkylene group, a substituted alkylene group, an alkylene group and a substituted alkenylene group are preferable, and an alkylene group and a substituted alkylene group are more preferable.
- the divalent aliphatic group preferably has a chain structure rather than a cyclic structure, and more preferably has a straight-chain structure than a branched chain structure.
- the number of carbon atoms of the divalent aliphatic group is preferably 1 to 20, more preferably 1 to 15, still more preferably 1 to 12, and further preferably 1 to 10. It is preferably 1 to 8, and most preferably 1.
- Examples of the substituent of the divalent aliphatic group include a halogen atom (F, C1, Br, I), a hydroxyl group, a canolepoxinole group, an amino group, a cyano group, an aryl group, an alkoxy group, and an aryloxy group. , Acryl, alkoxycarbonyl, carbonyloxy, carbonyl, monoalkylamino, dialkylamino, phenylamino and diarylamino. Lumino group etc.
- the divalent aromatic group means an aryl group or a substituted aryl group.
- phenylene, substituted phenylCRRIIII group, naphthylene and substituted naphthylene group are preferable.
- substitution of divalent aromatic group examples include an alkyl group in addition to the above-mentioned examples of the substituent of the divalent aliphatic group.
- Q represents a functional group that interacts with the surface of the support (hereinafter, may be abbreviated as “specific functional group”).
- Specific functional groups include, specifically, a covalent bond, an ionic bond, a heptavalent bond, and a singular bond with Si— ⁇ H, Si—0_, Al 3+ , anolymium oxide, and zirconium oxide on the support surface. Groups capable of interaction, such as interaction and Van der Waals interaction, are mentioned. Specific examples of the specific functional group are shown below.
- R U to R 13 each independently represent a hydrogen atom, an alkyl group, an aryl group, an alkynyl group, or an alkenyl group
- Mi and M 2 each independently represent a 7K element atom
- X— represents a counter anion.
- L represents a divalent linking group selected from the group consisting of _CO_, mono-, mono-NH-, divalent lunar aliphatic groups, divalent aromatic groups, and combinations thereof.
- L as a combination include the following in addition to the specific examples of L in (A1) above.
- the left side is bonded to the main chain and the right side is bonded to the ethylenically unsaturated bond.
- the repeating unit represented by the formula (A2) may have an aqueous portion.
- the knitted 3 copolymer used in the present invention further has a copolymer component represented by the following formula (A3)
- ML is synonymous with the one described in the description of the self-expression (A 2)
- R 7 and R 8 each independently represent a hydrogen atom or a linear or branched alkyl group having 1 to 6 carbon atoms.
- RG represents a linear or branched alkylene group having 1 to 6 carbon atoms.
- R 10 is Represents a hydrogen atom or an alkyl group having 1 to 12 carbon atoms.
- n represents an integer from 1 to: L00. (0159)
- the molecular weight of the specific copolymer is preferably in the range of 500 to L000,000, more preferably 700 to 50,000 in terms of mass average molecular weight Mw.
- the (al) is preferably from 5 to 80 mole 0/0 on the total copolymerization monomers, from 10 to 50 mole 0/0, more preferably les.
- (a 2) is preferably from 5 to 80 mole 0/0 on the total copolymerization monomers, more preferred arbitrariness from 10 to 50 mol 0/0.
- (a 3) is preferably from 5 to 80 mole 0/0 on the total copolymerization monomers, 10 and more preferably 50 mol 0/0.
- the compound (D) having the polymerizable group and the support-adsorbing group is contained in the image recording layer, the lower layer, or both layers.
- the compound (D) is dissolved or dispersed in an appropriate solvent together with (A) a polymerization initiator, (B) a polymerizable compound, and other components of the image recording layer.
- a method of applying the prepared coating solution is used.
- the content of the compound (D) is from 0.5 to 4 0 mass 0/0 of the solid content of the image recording layer is preferably, more preferably from 1 to 2 0% by weight.
- the undercoat layer containing the compound (D) having a polymerizable group and a support-adsorbing group can be prepared by dissolving the compound (D) in water or an organic solvent such as methanol, ethanol, or methyl ethyl ketone, or a mixed solvent thereof.
- a method in which a solution in which is dissolved is coated on a surface-treated aluminum support and dried, or the above compound is dissolved in water or an organic solvent such as methanol, ethanol, methyl ethyl ketone, or a mixed solvent thereof. It can be provided by a method in which a surface-treated aluminum support is immersed in a solution to adsorb the compound, washed, washed with water or the like, and dried.
- the coating the compound concentration O. 0 0. 5 to 1 0 weight 0/0 solution of (D) in a variety of ways.
- any method such as bar coating, spin coating, spray coating, and curtain coating may be used.
- the concentration of the solution is 0.0 1-2 0 mass 0 I preferably 0.0 5-5 mass 0/0
- the dipping temperature is 2 0 to 9 0 ° C, preferably 2
- the immersion time is from 0.1 second to 20 minutes, preferably from 2 seconds to 1 minute.
- the coating amount of the undercoat layer after drying is preferably from 0.1 to: LOO mg / m 2 , more preferably from 1 to 3 O mg / m 2 .
- a filler S commonly used for resin can be used.
- metal oxides, metal hydroxides, metal carbonates, metal sulfates, metal silicates, metal nitrides , Carbons and other fillers are used.
- metal oxide examples include silica, kieselguhr, anoremina, ffi & oxide, titanium oxide, calcium oxide, magnesium oxide, iron oxide, tin oxide and antimony oxide.
- metal hydroxide examples include calcium hydroxide, magnesium hydroxide, aluminum hydroxide and chlorinated magnesium carbonate.
- metal carbonates include calcium carbonate, magnesium carbonate, zinc carbonate, barium carbonate, dawsonite, and hydrotalcite.
- metal sulfate examples include calcium sulfate, barium sulfate, gypsum fiber and the like.
- metal K-Yeou salt examples include canoleic acid silicate, tanolek, kaolin, clay, my strength, montmorillonite, bentonite, active individual clay, sepiolite, imogolite, celisa lit, and glass!
- examples include fiber, glass beads, and silica-based nolan.
- metal nitride examples include aluminum nitride, boron nitride, and silicon nitride.
- Examples of the carbons include carbon black, graphite, carbon fiber, carbon nanotube, charcoal powder, and carbon nanotube fullerene.
- fillers include, for example, other various metal powders (gold, silver, copper, tin, etc.), potassium titanate, zircon titanate, aluminum borate, molybdenum sulfide, silicon carbide, stainless steel strip. Fiber, boric acid slag fiber, Teflon (registered trademark) powder, wood powder, knoll, rubber powder, and aramide fiber.
- internally crosslinked organic particles can also be preferably used.
- the internally crosslinked organic fine particles can be obtained by emulsion polymerization of a polyfunctional monomer having at least two polymerizable unsaturated double bonds and a monofunctional monomer having a polymerizable unsaturated double bond in the molecule. Specific examples include those described as “crosslinked latex particles” in JP-A-2003-39841.
- These fillers may be used by occupations or in combination of two or more.
- metal oxides, metal silicates and internally crosslinked visibly dispersed particles are preferred, metal oxides and t-group silicates are more preferred, and silica, alumina, titanium oxide, Talc, kaolin, clay, activated clay, sepiolite, glass beads, most preferably silica or alumina.
- the shape of the filler includes fibrous, needle-like, plate-like, spherical, granular (indefinite, the same meaning hereinafter), tetrapot-like, balloon-like, and the like.
- preferred are fibers, granules, needles, plates and spheres, and particularly preferred are spheres, granules and plates.
- a filler having a porous shape is preferable because of good on-press developability. (0 1 7 4)
- the filler may be surface-treated with a treating agent.
- Usable treating agents include ordinary treating agents, such as silane coupling agents, titanate coupling agents, aluminate coupling agents, fatty acids, oils and fats, polyethylene glycol type nonionic surfactants, and slope alcohol type nonionics. Can be used for surfactants, waxes, carboxylic acid coupling agents and phosphate coupling agents.
- silane coupling agents include y-methyl propionole trimethoxy silane, vinyl triethoxy silane, butyl trimethoxy silane, bultris ( ⁇ -meth 1, xychetoxy) silane, and ⁇ -methacryloxy propyl trimethoxy silane. And / 3 -— (3,4-hydroxyhexyl) ethynoletrimethoxysilane.
- titanate coupling agent examples include isopropyl triisostearoyl titan.
- aluminate coupling agent for example, acetoalkoxyalkyl diisopropylate and the like can be mentioned.
- fatty acid examples include stearic acid, oleic acid, linoleic acid, linolenic acid, and eleostearic acid.
- fats and oils examples include coconut oil, rice casks oil, soybean oil, linseed oil, castor oil, safflower oil and tung oil.
- polyethylene glycol type nonionic surfactant examples include a higher alcohol ethylene oxide adduct, a fatty acid ethylene oxide adduct, a higher alkylamine ethylenoxide adduct, and a polypropylene dalicol ethylene oxide adduct.
- polyhydric alcohol-type nonionic surfactant examples include polyethylene oxide, fatty acid esters of glycerin, fatty acid esters of pentaerythritol, fatty acid esters of sorbit or sorbitan, alkyl ethers of polyhydric alcohols, and fatty acids of alkanoreamin. Group amide and the like.
- wax examples include maleated polypropylene and maleated polyethylene.
- Carboxylic acid coupling agents include, for example, carboxylated polybutadiene and Lupoxylated polyisoprene and the like.
- Phosphoric acid coupling agents include, for example, monooctyl phosphate, monophosphate (
- Phosphoric acid-based coupling agents such as 2,6-dimethyl-17-octynole) ester, mono (6-mercaptohexynole) phosphate and mono (2-methacryloxypropyl) phosphate
- 2,6-dimethyl-17-octynole) ester mono (6-mercaptohexynole) phosphate
- mono (2-methacryloxypropyl) phosphate can be
- the filler used in the present invention is preferably one having a lipophilic group on its surface, and the surface treating agent therefor is preferably a silane coupling agent, a titanate coupling agent, an aluminate coupling agent, a fatty acid, or a fat or oil.
- the surface treating agent therefor is preferably a silane coupling agent, a titanate coupling agent, an aluminate coupling agent, a fatty acid, or a fat or oil.
- a wax, a carboxylic acid coupling agent and a phosphoric acid coupling agent are preferred.
- those having a polymerizable functional group on the surface are more preferable from the viewpoint of improving printing durability.
- a surface treatment therefor a surface treatment with a compound having an ethylenically unsaturated bond is preferred, and a surface treatment with a silane coupling agent having an ethylenically unsaturated bond is particularly preferred.
- the addition amount of the filler can be variously changed according to the type and the addition amount of other components in the image recording layer, but is preferably 0.1 to 80% by mass of the image recording layer, and 1 to 6%. more preferably 0 wt%, more Shi preferred is 5-5 0 weight 0/0 les. Within this range, both printing durability and on-press developability of the image portion are compatible.
- the average particle size of the filler used in the present invention depends on the thickness of the image recording layer, but is 5 nn! 1 ⁇ is preferred, 5 nm or more: L O / i in is more preferred, and 10 nm to 1 m is more preferred. Within this range, both printing durability and on-press developability of the image portion are compatible.
- the image recording layer of the present invention further requires additives such as a surfactant, a colorant, a printing-out agent, a polymerization inhibitor, a higher fatty acid derivative, a plasticizer, inorganic fine particles, and a low molecular weight ⁇ compound. It can be included as needed. Hereinafter, these will be described.
- the image recording layer has an on-press developability at the start of printing, and It is preferable to use a surfactant in order to improve the coated surface state.
- a surfactant include nonionic surfactants, anionic surfactants, cationic surfactants, amphoteric surfactants, amphoteric surfactants, and fluorine-based surfactants.
- Surfactants may be used in the workplace, or two or more surfactants may be used in combination.
- the nonionic surfactant used in the present invention is not particularly limited, and known surfactants can be used.
- polyoxyethylene alkyl ethers polyoxyethylene alkyl phenyl ethers, polyoxyethylene polystyryl phenyl ethers, polyoxyethylene polyoxypropylene alkyl ethers, glycerin fatty acid partial esters, sorbitan Fatty ester, pentaerythritol fatty acid partial ester, propylene glycol monofatty acid ester, sucrose fatty acid partial ester, polyoxyethylene sorbitan fatty acid partial ester, polyoxyethylene sorbitol fatty acid partial ester, polyethylene glycol monoleic acid Moon acid esters, polyglycerin fatty acid partial ester, polyoxyethylenated castor oil, polyoxyethylene glycerin fatty moon acid partial ester, fatty acid ester Noreamides, N, N-bis-1-hydroxy / lequinoleamines, polyoxyethylene alkyl
- the anionic surfactant + raw material used in the present invention is not particularly limited, and conventionally known ones can be used.
- fatty acid salts abietic acid; M, hydroxyalkane snolenate, alkane sulfonate, dialkyl sulfo succinate, linear alkyl benzene sulfonate, branched alkyl benzene sulfonate 3 ⁇ 411, alkyl naphthalene sulfonate Alkynolephenoxypolyoxyethylene propylsulfonates, polyoxyethylene alkylsulfophenyl ether salts, N-methinole-N-oleyl terephthalate sodium salt, N-alkylsulfosuccinate monoamide sodium amide, petroleum sulfonic acid , Sulfated tallow oil, fatty acid alkyl ester sulfates, alkyl sulfate ester salts, polyoxetyl
- the cationic surfactant used in the present invention is not particularly limited, and known cationic surfactants can be used.
- known cationic surfactants can be used.
- anorecylamine salts there can be mentioned anorecylamine salts, quaternary ammonium salts, polyoxyethylenealkylamine salts, and polyethylenepolyamide conductors.
- amphoteric surfactant used in the present invention is not particularly limited, and a known amphoteric surfactant can be used. Examples include carboxybetaines, aminocarboxylic acids, sulfobetaines, aminosulfates, and imitazolines.
- polyoxyethylene can be replaced with “polyalkylene” such as polyoxymethylene, polyoxypropylene, and polyoxybutylene. Surfactants can also be used.
- More preferred surfactants include fluorine-based surfactants containing a perfunoleo-aminosol group in the molecule.
- fluorosurfactants include, for example, perfluoroalkyl carboxylate, perfluoroalkyl sulfonic acid; ⁇ , perfluoronorky quinoleate esteno phosphate anion ⁇ ⁇ ; perfluoro Amphoteric types such as alkyl betaines; cationic types such as perfluoroalkyl trimethylammonium salts; alkyl amine oxides of perphnoleo mouth, alkyl ethylene oxide adducts of perphnoleo, perfluoroalkynole groups and hydrophilic groups Oligomers containing perfluoroalkyl groups and lipophilic groups, oligomers containing perfluoroalkyl groups, hydrophilic groups and lipophilic groups, containing perfluoroalkyl groups and lipophilic groups And a noni
- Surfactants can be used alone or in combination of two or more.
- the content of the surfactant is 0.001 to 10% by mass relative to the total solid content of the image recording layer. Is preferably that, 0.0 1-7 mass 0/0 and more preferably les.
- various compounds other than these may be further added as necessary.
- a dye that has a large absorption in the visible light can be used as a colorant for the image.
- pigments such as lid-opened cyanine pigments, azo pigments, carbon black, and titanium oxide can also be suitably used.
- the amount of addition is preferably from 0.01 to 10% by mass based on the total solid content of the image recording material.
- a compound capable of undergoing discoloration by an acid or a radical can be added to form a print-out image.
- various dyes such as dipheninolemethane-based, trifininolemethane-based, thiazine-based, oxazine-based, xanthene-based, anthraquinone-based, iminoquinone-based, azo-, and azomethine-based dyes are effectively used. .
- Specific examples include brilliant green, etyl violet, methyl infrastructuree, taristanore violet, basic fuchsin, methino violet 2B, quinano resin red, rose venganore, metal yellow, Timonoresnolephophthalein, xylenenolebunorre, methyl orange, paramethyl red, congo fred, benzopnolepurine 4B, a-naphthyno red, Nile blue 2B, Nile blue A, methyl violet, malaeze Green, Parahuxin, Victoria View Blue BOH [manufactured by Hodogaya Chemical Co., Ltd.], olive blue # 603 [manufactured by Orient Chemical Industry Co., Ltd.], Oinore Pink # 312 [manufactured by Orient Chemical Industry Co., Ltd.], Oinore Red 5B [manufactured by Orient Chemical Industry Co., Ltd.], oil scarlet # 308 [manufactured by Orient Chemical Industry Co.
- leuco dyes which are known as materials for pressure-sensitive paper, are also suitable.
- Specific examples include crystal violet lactone, malachite green lactone, benzoyl leucomethylene blue, 2- (N-pheninole-1-N-methinoleamino) '-6- (N —: — tolyl N-ethyl) amino- Fluoran, 2-anilino-3-methylinole-6- (N-ethyl-p-toluidino) funoreolan, 3,6-dimethoxyphnoleolane, 3- (N, N-getinoleamino) -1-methyl-7- (N , N-dibenzylisamino) 1-fluorane, 3- (N-cyclohexyl-N-methylamino) —6-methyl-7-anilinofluoran, 3- (N, N-getinoleamino) 1-6-methyl-7-a Nilinofluoran, 3-1
- Suitable additive amount of the dye undergoing discoloration with an acid or a radical is a rate of 0.0 1 to 5 mass 0/0 solid content of the image-recording layer.
- the image recording layer of the present invention should be added with a small amount of a thermal polymerization inhibitor to prevent unnecessary thermal polymerization of the radical polymerizable compound during the production or storage of the image recording layer. I like it.
- thermal polymerization inhibitor examples include hydroquinone, p-methoxyphenol, di-t-pentinole-p-cresonole, pyrogallol, t-butyme-cateno-cone, benzoquinone, 4,4′-thiobis (3-methinole 6 —T-butylphenol), 2,2′-methylenebis (4-methynole-6-t-butynolephenone), N-twotroso N-pheninolehydroxynoreamin aluminum salt are preferred.
- the addition amount of the thermal polymerization inhibitor is preferably from about 0.01 to about 5% by mass based on the total solid content of the image recording layer.
- the image recording layer of the present invention is added with a higher fatty acid derivative such as behenic acid or behenic acid amide to prevent polymerization inhibition by oxygen, and the image is recorded during the drying process after coating. It may be unevenly distributed on the surface of the layer.
- the addition amount of the higher fatty acid derivative is preferably about 0.1 to about 10% by mass based on the total solid content of the image recording layer. (0 1 9 5)
- the image recording layer of the invention may contain a plasticizer in order to improve the on-press developability.
- a plasticizer examples include dimethyl phthalate, jetino phthalate, dipti / lephthalate, disopti / lephthalate, dioctinolephthalate, octyl capryl phthalate, dicyclohexyl phthalate, ditridecino phthalate, and butyl phthalate.
- Esthenol phthalates such as benzyl phthalate, disodecyl phthalate, and diaryl phthalate; dimethyl phthalic phthalate, ethyl phthalinole ethynole glycolate, methino phthalyl ethyl glycolate
- Glycol esters such as triethylene glycol dicaprylate; phosphates such as tricresyl phosphate, trifluorene / rephosphate; diisobutyl adipate, octyl adipate, dimethyl sebacate, dibutyl sebacate, diglycol Preferred examples include aliphatic diacid esters such as octylazelate and dibutyl maleate; polyglycidyl methacrylate, triethyl citrate, glycerin triacetinoleestenole, and butyl laurate.
- the content of the plasticizer is preferably about 30% by mass or less based on the total solid content of the image recording layer.
- the image recording layer of the present invention may contain a ⁇ low molecular weight compound for improving on-press development and production.
- the hydrophilic low-molecular-weight compound include, for example, water-soluble anionic compounds such as ethylene glycol, ethylene glycol, triethylene glycol, propylene glycol, dipropylene glycol, and tripropylene glycol, and glycols thereof.
- Ether or ester derivatives polyhydroxys such as glycerin and pentaerythritol, organic amines such as triethanolamine, diethanolamine and monoethanolamine and salts thereof; organic sulfonic acids such as tonoleenesulfonic acid and benzenesulfonic acid; Organic phosphonic acids such as salts, phenolic phosphonic acids, and salts thereof, and organic carboxylic acids such as tartaric acid, oxalic acid, citric acid, malic acid, lactic acid, dalconic acid, and amino acids, and salts thereof.
- the constituents are dissolved in an appropriate solvent and applied as described in JP-A-2002-287334, for example.
- JP-A-2001-277740 and JP-A-2001-277742 all or a part of the components are included in a microphone-mouth capsule and contained in an image recording layer. It is a microphone opening capsule type image recording layer.
- the constituents can also be contained outside the micro force cell.
- the microcapsule-type image recording layer preferably has a hydrophobic component contained in a microphone force capsule, and contains a hydrophilic component outside the microforce plate.
- the image recording layer is preferably a microcapsule type image recording layer.
- a known method S can be applied.
- a method for producing microcapsules a method utilizing coacervation as described in the specifications of US Pat. Nos. 2,800,457 and 2,800,458, US Pat. No. 3,287,154, ⁇ 38-19574, 42 — The method by interfacial polymerization method described in Japanese Patent No. 446, the method by precipitation of polymer described in US Pat. No. 3,418,250 and US Pat. No. 3,660,304, and the method described in US Pat. No. 3,796,669. US Pat. No. 3,914,451, US Pat. No. 4,001,140, US Pat. No.
- a urea-formaldehyde-based or urea-formaldehyde-resorcinol-based wall-type method using melamine mono-formaldehyde resin as shown in U.S. Pat.
- a method using a wall material such as droxycell mouth the in situ method by monomer polymerization shown in JP-B-36-9163 and JP-B-51-9079, UK Patent No. 930422, US Patent No. 3111407 Spray drying method, and the electrolytic dispersion cooling method described in UK Patent Nos. 952807 and 967074, but are not limited thereto.
- the preferred microcapsule wall used in the present invention has three-dimensional crosslinks and has a property of being made by a solvent.
- the wall material of the microcapsule is made of polyurea, polyurethane, polyester, polycarbonate, polyamide, and the like. Are preferable, and polyurea and polyurethane are particularly preferable.
- a compound having a crosslinkable functional group such as an ethylenically unsaturated bond that can be introduced into the binder polymer may be introduced into the microscopic wall.
- the average particle size of the above micro force capsule is preferably 0.1 to 3.0 m. 0.05 to 2.0 im is more preferable, and 0.10 to 1.0 O / z m is particularly preferable. Within this range, good resolution and stability over time can be obtained.
- the image recording layer of the present invention is applied by preparing a coating solution by dispersing or dissolving the above-mentioned necessary components in a solvent.
- Solvents used here include ethylene dichloride, cyclohexanone, methinole ethynole ketone, methanol, ethanol, propanol, ethylene glycolone monomethyl ether, 1-methoxy-2-propanol, 2-methoxyethyl acetate, and 1-methoxyethyl acetate.
- the solid content concentration of the coating solution is preferably 1 to 50% by mass.
- the image recording layer of the present invention can be formed by preparing a plurality of coating liquids in which the same or different components described above are dispersed or dissolved in the same or different solvent, and repeating the coating and drying a plurality of times.
- the coating amount (solid content) of the image recording layer on the support obtained after coating and drying varies depending on the application. Generally, it is preferably from 0.3 to 3.0 g / m 2 . Within this range, good sensitivity and good skin of the image recording layer can be obtained.
- the support used for the plate is not particularly limited as long as it is a dimensionally stable plate.
- metal plate for example, aluminum, zinc, copper, etc.
- plastic film for example, cellulose diacetate, cellulose triacetate, senorelose propionate
- Paper or plastic film on which the above-mentioned metals are laminated or vapor-deposited such as: Senolerose, acid acid, cellulose, acid acid, celloyl acid, polyethylene oxide, polyethylene terephthalate, polyethylene, polystyrene, polypropylene, polycarbonate, polyvinyl alcohol, etc.
- a polyester film or an aluminum plate can be used. Among them, an aluminum plate which has good dimensional stability and
- the anolemminium plate is a pure aluminum plate, an alloy plate containing aluminum as a main component and containing a trace amount of a different element, or a thin film of aluminum or an aluminum alloy laminated with plastic.
- the foreign elements contained in the aluminum alloy include silicon, iron, manganese, copper, magnesium, chromium, zinc, bismuth, nickele, and titanium.
- the content of the foreign element in the alloy is preferably 10% by mass or less.
- a pure aluminum plate is preferred. However, completely pure aluminum is difficult to technically produce, so that it may contain a slightly different element.
- the composition of the anore miniature plate is not specified, and a well-known material can be used.
- the thickness of the support is preferably from 0.1 to 0.6 mm, more preferably from 0.15 to 0.4 mm, and even more preferably from 0.2 to 0.3 mm. .
- a surface treatment such as a surface roughening treatment and an anodic oxidation treatment.
- the surface treatment makes it easy to improve the properties and ensure the adhesion between the image recording layer and the support.
- a treatment for removing a rolling oil on the surface with a surfactant, an organic solvent, an alkali tfcK or the like is performed prior to the surface roughening treatment of the aluminum plate.
- the surface roughening treatment of the aluminum plate surface is performed by various methods. For example, Nada roughening treatment, electrochemical roughening treatment (roughening treatment to dissolve the surface electrochemically), chemical Roughening treatment (roughening treatment for selectively dissolving the surface chemically).
- a known method such as a ball polishing method, a brush polishing method, a plast polishing method, and a buff polishing method can be used.
- a method of the electrochemical surface-roughening treatment for example, a method in which an alternating current or a direct current is used in an electrolytic solution containing an acid such as » nitric acid or the like can be mentioned.
- a method using a mixed acid as described in JP-A-54-63902 may also be used.
- the aluminum plate subjected to the surface roughening treatment is subjected to an alkali etching treatment using an aqueous solution of potassium hydroxide, sodium hydroxide or the like, if necessary, and further subjected to a neutralization treatment.
- Anodizing treatment is applied to increase production.
- electrolyte used for anodizing the aluminum plate various electrolytes that form a porous oxide film can be used.
- sulfuric acid, sulfuric acid, oxalic acid, chromic acid, or a mixed acid thereof is used.
- concentration of those alterations! ⁇ Depending on the type of quality, it can be determined appropriately.
- Anodizing conditions vary depending on the electrolyte used and cannot be specified unconditionally. However, in general, the conversion concentration is 1 to 80% by mass, the liquid temperature is 5 to 70 ° C, and the current is Density 5-60 A / dm 2 , Voltage 1-: L 00 V, preferably 10 seconds-5 minutes.
- the amount of the anodized film formed is from 1.0 to 5.0 force S preferably of is gZm 2, 1. 5 ⁇ 4. more preferably from 0 gZm 2. Within this range, good printing durability and good scratch resistance of the non-image area of the lithographic printing plate can be obtained.
- the support used in the present invention may be the surface treated as described above and may have an anodic oxide film as it is, but may be further improved in adhesiveness to the upper layer, hydrophilicity, resistance to contamination, HfS rawness, etc. Therefore, if necessary, a process for enlarging a microphone opening pore of an anodized film, a process for sealing a micropore, and a hydrophilic compound described in JP-A-2001-253181 ⁇ JP-A-2001-322365 Can be performed by appropriately selecting a surface hydrophilization treatment immersed in an intense night of water.
- the surface be coated with IfcW to give IfcW.
- ⁇ layer As the ⁇ layer,
- At least one element selected from the group consisting of beryllium, magnesium, anorenium, silicon, titanium, boron, germanium, tin, zirconium, iron, vanadium, antimony and trans A layer formed by applying a coating solution containing a colloid of an oxide or a hydroxide, and a non-agricultural water obtained by crosslinking or pseudo-crosslinking a ⁇ polymer described in JP-A-2002-79772.
- a hydrophilic layer having a hydrophilic matrix a layer having a water-free aqueous matrix obtained by sol-gel conversion of polyalkoxysilane, titanate, zirconate or aluminum by carohydrate decomposition and condensation reaction, or contains metal oxide
- a hydrophilic layer composed of an inorganic thin film having a surface which is not preferable is preferred.
- an HTR layer formed by applying a coating solution containing a silicon oxide or hydroxide colloid is preferable.
- the support of the present invention it is preferable to provide an antistatic layer on the hydrophilic layer side, the opposite side, or both sides of the support.
- the antistatic layer it is possible to use a polymer layer in which metal oxide fine particles and a matting agent are dispersed, as described in JP-A-2002-79772.
- the support preferably has a center line average roughness of 0.10 to 1.2 ⁇ m. Within this range, good adhesion to the image recording layer, good printing durability, and good stain resistance can be obtained.
- the color density of the support is preferably 0.15 to 0.65 as a reflection density value. Within this range, good image formability by preventing halation during image exposure and good Good plate inspection is obtained.
- a back coat can be provided on the back surface of the support, if necessary.
- an organic high molecular compound described in JP-A-5-48585, an organic compound described in JP-A-5-31574, or an organic compound described in Preferable examples include S comprising a metal oxide obtained by polycondensing a compound with carotenous water.
- S i (OCH 3) 4, S i (OC 2 H 5) 4, S i (OC 3 H 7) 4, S i (OC 4 H 9) alkoxy compound of Kei containing such 4 It is preferable because raw materials are inexpensive and easily available.
- a protective layer for the purpose of blocking oxygen is provided. Is not necessary, but if necessary, to prevent scratches on the image recording layer, to prevent abrasion during high-intensity laser exposure, and to cut off oxygen to increase image intensity, May be provided with a protective layer.
- the exposure is usually carried out in the atmosphere, but the protective layer is formed of oxygen, salt S, etc. existing in the atmosphere which inhibits the image formation 05 caused by the exposure in the image recording layer.
- the desired properties of the protective layer are that the permeability of low molecular compounds such as oxygen is low, the transparency of light used for exposure is good, and the adhesion to the image recording layer is excellent.
- it can be easily removed in an on-press development step after exposure.
- the protective layer having such properties for example, in U.S. Pat. No. 3,458,311 and JP-A-55-49727. It is described in detail in
- Examples of the material used for the protective layer include a water-soluble polymer compound having relatively excellent crystallinity.
- poly Bulle alcohol, polyvinyl pyrrolidone, acid I 1 production cell Examples include water-soluble polymers such as loins, gelatin, gum arabic, and polyacrylic acid.
- PVA polyvinylino oleone
- Polybutyl alcohol may be partially substituted with estenole, athenole or acetanole, as long as it contains unsubstituted bier alcohol units to provide the protective layer with the necessary oxygen barrier and water solubility. It may have another copolymer component.
- poly Bulle alcohol, 71 to 100 mole 0/0 hydrolysis are preferably exemplified within the scope of ⁇ polymerisation degree 3 00 ⁇ 240 O.
- the components of the protective layer selection of PVA, use of filler, etc.), the amount of coating, etc. are appropriately selected in consideration of the oxygen barrier properties and the image removability, capricity, adhesion, scratch resistance, etc. You. In general, the higher the percentage of water in PVA (ie, the higher the content of unsubstituted vinyl alcohol units in the protective layer), and the thicker the film thickness, the higher the oxygen barrier properties and the sensitivity. Is preferred. Also
- oxygen permeability is not too high. Therefore, 25.
- Oxygen permeability under 1 atm A is 0.2 ⁇ A ⁇ 20 (cc / m 2 -day).
- glycerin, dipropylene glycol or the like can be added to the (co) polymer in an amount equivalent to several mass% to give a flexible ft.
- sodium alkyl sulfate, Aionic surfactants such as sodium alkynolesulfonic acid; amphoteric surfactants such as alkylamino carboxylate and alkynoleaminodicarboxylate; nonionic surfactants such as polyoxyethylenealkynolephenyletheno! (Co) Addition of several mass% to the polymer Can do.
- the adhesion of the protective layer to the image area, the scratch resistance I ", etc. are also extremely important in handling the lithographic printing plate.
- the protective layer having an azk property because it contains a water-soluble polymer compound.
- the protective layer is likely to be peeled off due to insufficient adhesive strength, and defects such as poor expansion due to inhibition of polymerization by oxygen may occur in the peeled portion.
- Japanese Patent Application Laid-Open No. 49-77072 and British Patent Application Publication No. 1 358 778 describe that acrylic polymer is mainly contained in a hydrophilic polymer mainly composed of polybutyl alcohol. 20 to 60% by mass of a water-insoluble emulsion, a water-insoluble vinylpyrrolidone-vininoleate acetate copolymer, etc., and sufficient adhesiveness can be obtained by laminating on the image recording layer. ing. In the present invention, any of these known techniques can be used.
- a colorant for example, a water-soluble dye
- Safelight aptitude can be improved.
- the film thickness of the protective layer is suitably from 0.1 to 5 / im, particularly preferably from 0.2 to 2 / m.
- the method of applying the protective layer is described in detail in, for example, U.S. Pat. No. 3,458,311 and ' ⁇ 5 55-49729.
- a cleaning treatment degassing treatment was performed to remove unnecessary gas such as hydrogen inside, and further, a ceramic tube filter treatment was performed.
- the fabrication method was performed by the DC fabrication method.
- the surface of the solidified block with a thickness of 500 mm was chamfered by 10 mm, and homogenized at 550 ° C.
- electrochemical roughening treatment was performed continuously using an alternating current of 60 Hz.
- the time TP until the current value goes from zero to the peak is 0.8 ms ec, the duty ratio is 1: 1, and the trapezoidal rectangular wave AC is used.
- Surface treatment was performed. Ferrite was used for the auxiliary anode.
- the current density was 30 A / dm ⁇ , the peak value of the current.
- the amount of electricity in nitric acid was 175 C / dm 2 when the aluminum plate was an anode. After that, it was washed with water by spraying.
- the surface of the aluminum plate was subjected to electrochemical surface roughening treatment in the same manner as M under the condition of an electric quantity of 50 cz dm 2 when the aluminum plate was used as an anode, and then washed with a spray Was.
- the plate was provided with a 15 mass 0/0 sulfuric acid (Arumini ⁇ -ion of 0.5 weight 0/0 including) a direct current anodized film of 2. 5 g / m 2 at a current density of 15 A / dm 2 as the electrolyte After washing with water, ⁇ ⁇ , and further, sodium silicate 2.5 mass 0 /.
- the solution was treated with an aqueous solution at 30 ° C for 10 seconds.
- the center line average roughness (Ra) of this substrate was measured using a 2 ⁇ m diameter! ⁇ And found to be 0.51 / m.
- an image recording layer 'coating solution (1) having the following composition was applied so that the dry coating weight was 1.5 g / m 2, and dried at 100 ° C. for 1 minute to form an image recording layer.
- the following binder polymer (1) (average molecular weight 50,000) 30 g
- the following polymerization initiator (1) 1 ⁇ -phthalocyanine / binder polymer (1)
- Dispersion 2 g Fluorine-based nonione interface Activate ij mega fuck F 177
- Polybutyl alcohol (degree of saponification 95 mol 0 /., Degree of polymerization 800) 40 g Polyvinolepyrrolidone (Molecular weight 50,000) 5 g Poly (bi-norpyrrolidone / Biel acetate (1-1)) Molecular weight 75,5 g Water 950 g
- Lithographic printing plate (2) (on-press development plate material)
- an undercoat layer coating solution under words 3 ⁇ 4 composition (2) was applied using a bar comprising a liquid volume 7. DpiiZie 2, and oven dried at 80 ° C, 10 seconds.
- image recording layer coating solution under words 3 ⁇ 4 SoNaru (2) and bar coating old and Bun dried 70 ° C, 60 seconds, dry coating amount 1.0 image word of g / m 2 formed oneself recording layer
- a protective layer coating solution (1) consisting of Kaminari Sogen was applied on top of this to a dry coating weight of 0.5 gZm 2 , dried at 120 ° C for 1 minute, and dried on a lithographic printing plate precursor ( 2) was obtained.
- binder polymer (2) (average molecular weight 80,000) 6. O g
- Isocyanuronic acid EO modified 'triatalylate (M-315 manufactured by Toagosei Co., Ltd.)
- the lithographic printing plate precursor was prepared in the same manner as in the lithographic printing plate (2), except that the coating solution for the image recording layer (2) was changed to the coating solution for the surface image recording layer (3) of SE below. 3) was obtained.
- Isocyanuric acid EO-modified triatalylate (M-315, manufactured by Toagosei Co., Ltd.) • Leuco crystal violet 3.0 g -Thermal polymerization inhibitor 0.1 g
- micro force capsule (1) (in terms of solid content): 10.0 g
- trimethylolpropane and xylene diisocyanate adduct (Takenate D-11ON, manufactured by Mitsui Takeda Chemical Co., Ltd.), 10 g, pentaerythri tonoretriatalylate (manufactured by Nippon Kayaku Co., Ltd.) SR444) 3.15 g, 3— (N, N—Jetylamino) —6—methinole 7—anilinofunoleorane ( ⁇ DB, manufactured by Yamamoto Kasei Co., Ltd.), 1 g, and paionin A—41C (Takemoto oil and fat ( 0.1 g was reduced to 17 g of ethyl acetate.
- aqueous phase component 40 g of PVA-205 4% by mass water was prepared.
- the oil phase component and the aqueous phase component were mixed and emulsified at 12000 rpm for 10 minutes using a homogenizer.
- the obtained compound was added to 25 g of distilled water, stirred at room temperature for 30 minutes, and then stirred at 40 ports for 3 hours.
- the microcapsule solution (1) thus obtained was diluted with distilled water to a solid content concentration of 20% by mass. The average particle size was 0.25 ⁇ .
- Polymerization initiator used for preparing lithographic printing plate precursor (2) (1) A lithographic printing plate precursor (4) was obtained in the same manner as in ⁇ of the lithographic printing plate precursor (2) except for changing to (2).
- Lithographic printing plate precursors (5) to (7) On-machine sickle material, initiator change
- the polymerization initiator (1) of the coating solution for image recording layer (2) was changed to the following polymerization initiators (3) and (4), and 0.5 g of the following sensitizing dye (1) was added.
- Lithographic printing plates (5) and (6) were obtained in the same manner as in the preparation of the lithographic printing plate (2). Also, except that the polymerization initiator (1) of the coating solution for the image recording layer (2) was changed to the following polymerization initiator ⁇ (3), and 0.5 g of the following self-sensitizing dye (2) was added, A lithographic printing house version (7) was obtained in the same manner as in the lithographic printing friendly version (2).
- the lithographic printing plate precursor before coating the protective layer on the image recording layer was designated as lithographic printing plate precursors (8) and (9), respectively. .
- the lithographic printing plate precursor (10) was prepared in the same manner as the lithographic printing plate (5) except that the sensitizing dye (1) used for the lithographic printing plate (5) was changed to the following sensitizing dye (3). Obtained.
- lithographic printing thigh plates (1) to (9) defined above, image formation and printing were performed, and the sensitivity, fine line reproducibility and white light safety were evaluated.
- the exposure method, imaging method, printing method and fffi method used are shown below.
- Table 1 shows the lithographic printing plate precursors used in the examples and the evaluation results.
- the lithographic printing plate precursor is a 266 nm (Example 4), 355 nm (Example 12) or 488 nm (Comparative Example 3) laser, which is the fourth harmonic of the YAG oscillation mode-locked solid-state laser shown in Fig. 4, with an output of 100 mW. Exposure was performed under the conditions of a spindle mirror of 30000 rpm, an inner drum system, and an angular image resolution of 2400 dpi. The rendering time for one pixel is as shown in Table 1.
- the lithographic printing plates (1) and (8) were prepared by dipping DP-4 developer (manufactured by Fuji Photo Film Co., Ltd.) 18 times with water and immersing it at 30 ° C for 15 seconds.
- DP-4 developer manufactured by Fuji Photo Film Co., Ltd.
- GU-7 manufactured by Fuji Photo Film Co., Ltd.
- the lithographic printing plate precursors (2) to (7), (9) and (10) were developed on-press without developing the exposed plate precursors as described in the printing method below.
- the lithographic printing plate precursor that had not been exposed was placed under a white fluorescent lamp, placed under conditions where the amount of light was 4001 ux on the surface of the lithographic printing plate I, and exposed.
- the lithographic printing plate precursor exposed to the white light is subjected to development processing for those requiring development processing, and then attached to the cylinder of the Heidelbergen ring printing machine SOR-M, as described above, and 100 sheets are marked. After that, the exposure time under a white fluorescent lamp was measured. It can be said that the longer the time, the better the white light safety.
- the image forming method and the lithographic printing method (Examples 1 to 12) of the present invention have both high sensitivity and white light safety, and have good fine line reproducibility and high image quality.
- an image recording layer having a dry coating amount of 1. Og / m 2
- the protective layer coating solution (1) is coated thereon so that the dry coating weight is 0.5 g / m-, dried at 120 ° C for 1 minute, and dried on a lithographic printing plate precursor (13). ).
- Example 13 On the support used in Example 13, the undercoat layer coating solution (1) was applied using a bar having a liquid volume of 7.5 mL / m 2, and then dried at 80 ° C for 10 seconds. did. Next, an image recording layer and a protective layer were provided in the same manner as in Example 13 except that Compound (D) -11 was removed from the image recording layer coating solution (4) described in Example 13. A lithographic printing plate (14) was obtained.
- Lithographic printing plate precursors (15) to (18) were obtained in the same manner as in Example 14, except that Compound I (D) -11 in Example 14 was replaced with the following compounds shown in Table 2. .
- Lithographic printing plates (19) to (23) were obtained in the same manner as in Example 13 except that the polymerization initiator (1) was changed to the compounds shown in Table 3 in Example 13.
- Example 14 The same inversion as described in Example 14 was provided on the support used in Example 13, and then the image recording layer coating solution (5) described below was coated with a bar, and then heated at 70 ° C and 60 ° C. After drying in an oven for 2 seconds, drying An image recording layer with a coating weight of 1.0 gZm 2 is formed, and the coating liquid for the above-mentioned protective layer (1) is dried on this to give a dry coating weight of 0.5 g / m 2 And dried at 120 ° C. for 1 minute to obtain a lithographic printing plate precursor (24). (0280)
- a lithographic printing plate (28) was obtained in the same manner as in Example 14, except that the image recording layer coating solution (4) used in Example 14 was changed to the image recording layer coating solution (6) having the following composition.
- the image recording layer coating solution (4) used in Example 14 was changed to the image recording layer coating solution (6) having the following composition.
- microcapsules (1) (in terms of solid content) 10.0 g
- a lithographic seal notified U plate original plate (29) was obtained in the same manner as in Example 13 except that the compound (D) was removed from the image recording layer coating solution (4) described in Example 13.
- the obtained lithographic printing plate precursors (13) to (31) were processed using a 375 nm semiconductor laser under the conditions of an output of 2 mW, an outer drum having a circumference of 900 mm, a drum rotation rate of 800 rpm, and a resolution of 2400 di. Exposure. Without developing the obtained exposed master, No, Idelbergne The printing machine was attached to the cylinder of SOR-M.
- the removal force S of the unexposed portion of the image recording layer was completed, and the number of printing papers required until the ink did not transfer to the printing papers until the printing paper became a state was measured as the on-press developability.
- Table 5 shows the results of the appreciation of the developability and printability.
- the image recording layer coating solution having the composition shown in Table 6 below was coated on the support with a bar, followed by oven drying at 100 ° C. for 60 seconds, and a dry coating amount of 1.0 g / m 2.
- An image recording layer is formed, and a coating solution (1) of the protective layer (1) is applied thereon so that the dry coating amount is 0.5 g / m 2, and the coating is performed at 125 ° C. for 75 seconds.
- Oven drying was performed to obtain a lithographic printing plate precursor.
- the obtained planographic printing house version was prepared in the same manner as in Examples 13 to 28 except that the printing machine was changed to a printing machine Sprint 25, manufactured by Komori Corporation, at a printing speed of 800 sheets per hour. Exposure, printing, and on-press developability and printing durability were evaluated. Table 7 shows the results of these evaluations.
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- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- General Physics & Mathematics (AREA)
- Photosensitive Polymer And Photoresist Processing (AREA)
- Materials For Photolithography (AREA)
Abstract
Description
Claims
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP05727704A EP1739482A4 (en) | 2004-03-24 | 2005-03-24 | PICTURE GENERATION PROCESS, LITHOGRAPHIC PRINTING PLATE AND LITHOGRAPHIC PROCESS |
| US10/593,625 US7700265B2 (en) | 2004-03-24 | 2005-03-24 | Image forming method, planographic printing plate precursor, and planographic printing method |
Applications Claiming Priority (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004086216 | 2004-03-24 | ||
| JP2004086217 | 2004-03-24 | ||
| JP2004-086216 | 2004-03-24 | ||
| JP2004-086217 | 2004-03-24 | ||
| JP2004089828 | 2004-03-25 | ||
| JP2004-089828 | 2004-03-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2005091068A1 true WO2005091068A1 (ja) | 2005-09-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2005/006200 Ceased WO2005091068A1 (ja) | 2004-03-24 | 2005-03-24 | 画像形成方法、平版印刷版原版および平版印刷方法 |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US7700265B2 (ja) |
| EP (1) | EP1739482A4 (ja) |
| WO (1) | WO2005091068A1 (ja) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090114108A1 (en) * | 2007-06-21 | 2009-05-07 | Toyohisa Oya | Lithographic printing plate precursor and lithographic printing method |
| US20100209851A1 (en) * | 2007-11-16 | 2010-08-19 | Agfa Graphics Nv | Method of making a lithographic printing plate |
| US8221957B2 (en) | 2007-07-02 | 2012-07-17 | Fujifilm Corporation | Planographic printing plate precursor and printing method using the same |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2246741A1 (en) * | 2004-05-19 | 2010-11-03 | Fujifilm Corporation | Image recording method |
| CA2644916A1 (en) * | 2006-03-21 | 2007-09-27 | Xpose Holding Ag | Internal drum image setter |
| EP2080773B1 (en) * | 2006-11-10 | 2011-05-18 | Toray Industries, Inc. | Paste composition for light guide and light guide utilizing the same |
| JP2010102322A (ja) * | 2008-09-26 | 2010-05-06 | Fujifilm Corp | 平版印刷版の製版方法 |
| DE102009013710A1 (de) * | 2009-03-20 | 2010-09-23 | Merck Patent Gmbh | Polymere aus Mischungen mit Vinylether-Monomeren |
| US20100265557A1 (en) * | 2009-04-21 | 2010-10-21 | Jesper Sallander | Optical Systems Configured to Generate More Closely Spaced Light Beams and Pattern Generators Including the Same |
| JP5677036B2 (ja) | 2010-11-08 | 2015-02-25 | キヤノン株式会社 | 有機発光素子 |
| CN102582312B (zh) * | 2011-12-23 | 2016-06-29 | 乐凯华光印刷科技有限公司 | 一种低化学处理紫激光光聚合型平版印刷版 |
| TWI545394B (zh) * | 2015-05-29 | 2016-08-11 | Digital roller manufacturing system |
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| US20090114108A1 (en) * | 2007-06-21 | 2009-05-07 | Toyohisa Oya | Lithographic printing plate precursor and lithographic printing method |
| US8714088B2 (en) * | 2007-06-21 | 2014-05-06 | Fujifilm Corporation | Lithographic printing plate precursor and lithographic printing method |
| US8221957B2 (en) | 2007-07-02 | 2012-07-17 | Fujifilm Corporation | Planographic printing plate precursor and printing method using the same |
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Also Published As
| Publication number | Publication date |
|---|---|
| EP1739482A4 (en) | 2009-03-25 |
| US20070224535A1 (en) | 2007-09-27 |
| US7700265B2 (en) | 2010-04-20 |
| EP1739482A1 (en) | 2007-01-03 |
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