WO2014045789A1 - 平版印刷版用支持体および平版印刷版原版 - Google Patents

平版印刷版用支持体および平版印刷版原版 Download PDF

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Publication number
WO2014045789A1
WO2014045789A1 PCT/JP2013/072314 JP2013072314W WO2014045789A1 WO 2014045789 A1 WO2014045789 A1 WO 2014045789A1 JP 2013072314 W JP2013072314 W JP 2013072314W WO 2014045789 A1 WO2014045789 A1 WO 2014045789A1
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Prior art keywords
mass
printing plate
lithographic printing
less
treatment
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PCT/JP2013/072314
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English (en)
French (fr)
Japanese (ja)
Inventor
西野　温夫
澤田　宏和
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富士フイルム株式会社
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Priority to CN201380048604.7A priority Critical patent/CN104661828A/zh
Priority to BR112015006033A priority patent/BR112015006033A2/pt
Publication of WO2014045789A1 publication Critical patent/WO2014045789A1/ja

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41N—PRINTING PLATES OR FOILS; MATERIALS FOR SURFACES USED IN PRINTING MACHINES FOR PRINTING, INKING, DAMPING, OR THE LIKE; PREPARING SUCH SURFACES FOR USE AND CONSERVING THEM
    • B41N3/00—Preparing for use and conserving printing surfaces
    • B41N3/03—Chemical or electrical pretreatment
    • B41N3/034—Chemical or electrical pretreatment characterised by the electrochemical treatment of the aluminum support, e.g. anodisation, electro-graining; Sealing of the anodised layer; Treatment of the anodic layer with inorganic compounds; Colouring of the anodic layer
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25F—PROCESSES FOR THE ELECTROLYTIC REMOVAL OF MATERIALS FROM OBJECTS; APPARATUS THEREFOR
    • C25F3/00—Electrolytic etching or polishing
    • C25F3/02—Etching
    • C25F3/04—Etching of light metals
    • 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
    • G03F7/004—Photosensitive materials
    • G03F7/09—Photosensitive materials characterised by structural details, e.g. supports, auxiliary layers

Definitions

  • the present invention relates to a lithographic printing plate support and a lithographic printing plate precursor.
  • the lithographic printing method is a printing method that utilizes the fact that water and oil do not essentially mix, and the printing plate surface of the lithographic printing plate used for this is a region that accepts water and repels oil-based ink ( Hereinafter, this region is referred to as “non-image portion”) and a region that repels water and receives oil-based ink (hereinafter, this region is referred to as “image portion”) is formed.
  • the surface of an aluminum support for a lithographic printing plate used for a lithographic printing plate (hereinafter also referred to simply as “support for a lithographic printing plate”) has hydrophilicity and water retention because it is used to carry a non-image area.
  • Various performances that are contradictory are required, such as excellent adhesion and excellent adhesion to the image recording layer formed thereon. If the surface of the lithographic printing plate support is too low in hydrophilicity, ink will adhere to the non-image area during printing, and stains on the blanket cylinder, and so-called background stains, will occur. That is, the stain resistance is deteriorated.
  • the surface of the lithographic printing plate support is subjected to various roughening treatments to form irregularities (hereinafter referred to as “pits” and “sand”). Eyes ”) are formed.
  • the roughening treatment include mechanical roughening treatment, electrochemical roughening treatment (hereinafter also referred to as “electrolytic roughening treatment”), and chemical roughening treatment (chemical etching). ), A combination of these methods is known.
  • electrolytic surface roughening treatment a method of flowing an alternating current through an aluminum plate in an aqueous solution containing an acidic solution is widely used in that fine irregularities can be generated on the surface of the aluminum plate.
  • Patent Document 1 discloses that “a method for producing a lithographic printing plate support, in which an aluminum alloy plate is subjected to a surface treatment including an electrochemical roughening treatment to obtain a lithographic printing plate support, The aluminum content of the aluminum alloy plate is 95 to 99.4% by mass, and the electrochemical surface roughening treatment is performed using an alternating current in an aqueous solution mainly containing hydrochloric acid.
  • a method for producing a lithographic printing plate support. ([Claim 1]) the composition of the aluminum alloy plate is three or more elements selected from the group consisting of Fe, Si, Cu, Mg, Mn, Zn, Cr and Ti as follows: What is contained in the range is described ([Claim 2]).
  • a lithographic printing plate precursor using this is an alternating current in an aqueous solution mainly composed of hydrochloric acid. Is subjected to an electrolytic surface roughening treatment (hereinafter also referred to as “hydrochloric acid electrolysis”), so that depending on the alloy composition of the aluminum plate used, printing durability and cleaner resistance ( It was clarified that the cleaner printing durability may be inferior.
  • an object of the present invention is to provide a lithographic printing plate having excellent printing durability and cleaner resistance when used as a lithographic printing plate, and a lithographic printing plate support used therefor.
  • the present inventors have used an aluminum plate containing a specific amount of Fe, Si, Cu, Mn, Mg, Zn and Ti (particularly, Si, Mg and Zn), and By using a lithographic printing plate support having a specific range of various factors representing the surface shape required using an atomic force microscope, it is possible to improve printing durability and cleaner resistance when using a lithographic printing plate.
  • the present invention has been completed by finding that it is an excellent planographic printing plate. That is, the present invention provides the following (1) to (5).
  • a lithographic printing plate support obtained by subjecting an aluminum plate to a roughening treatment including an electrochemical roughening treatment The aluminum plate contains Fe, Si, Cu, Mn, Mg, Zn and Ti in the following ranges, and the balance is an aluminum plate made of Al and inevitable impurities, Fe: 0.10 mass% or more and less than 1.0 mass%, Si: more than 0.25% by mass and 1.00% by mass or less, Cu: 0.001% by mass or more and 0.1% by mass or less, Mn: 0.1 mass% or more and less than 1.0 mass%, Mg: 0.001% by mass or more and less than 0.10% by mass, Zn: 0.10% by mass to 0.30% by mass, Ti: 0.001% by mass or more and 0.05% by mass or less, A lithographic printing plate support having a surface area ratio ⁇ S of 35 to 80% and a steepness a45 of 35 to 75%.
  • the surface area ratio ⁇ S is obtained by measuring an actual area S x obtained by an approximate three-point method from three-dimensional data obtained by measuring 256 ⁇ 256 points on a surface of 25 ⁇ m ⁇ 25 ⁇ m square using an atomic force microscope, from biological measurement area S 0
  • Prefecture is a value obtained by the following formula (1), steepness a45 has the inclination angle 45 ° or more dimensions relative to the actual area S x (gradient of 45 ° or higher)
  • ⁇ S (S x ⁇ S 0 ) / S 0 ⁇ 100 (%) (1)
  • the small wave structure is a structure in which the average of the ratio of the depth to the opening diameter (depth / opening diameter) in the unevenness having an opening diameter of more than 0.2 ⁇ m and less than 0.5 ⁇ m is more than 0.20 and less than 0.60 (1
  • the mass ratio of Si to Zn (Si / Zn) is 1.0 to 8.0 and / or the mass ratio of Mn to Zn (Mn / Zn) is 0.7 to 8.0.
  • a lithographic printing plate precursor comprising an image recording layer provided on the lithographic printing plate support according to any one of (1) to (4).
  • a lithographic printing plate precursor excellent in both printing durability and cleaner resistance when used as a lithographic printing plate, and a lithographic printing plate support used therefor are provided. Can do.
  • the lithographic printing plate support of the present invention is a lithographic printing plate support obtained by subjecting an aluminum plate having a predetermined aluminum alloy composition to be described later to a roughening treatment including an electrochemical roughening treatment.
  • the lithographic printing plate support is such that the surface area ratio ⁇ S representing the surface shape factor and the steepness a45 are within a specific range.
  • a numerical range represented by using “to” means a range including numerical values described before and after “to” as a lower limit value and an upper limit value.
  • the lithographic printing plate support of the present invention has a surface area ratio ⁇ S of 35 to 80% and a steepness a45 of 35 to 75%.
  • a lithographic printing plate support having a surface area ratio ⁇ S and a steepness a45 in the above ranges both the printing durability and the cleaner resistance of the lithographic printing plate precursor are improved.
  • the depth of pits (unevenness) formed on the surface of the lithographic printing plate support is increased, and the adhesion to the image recording layer is improved.
  • the surface area ratio ⁇ S is obtained by measuring an actual area S x obtained by an approximate three-point method from three-dimensional data obtained by measuring 256 ⁇ 256 points on a surface of 25 ⁇ m ⁇ 25 ⁇ m square using an atomic force microscope, from biological measurement area S 0
  • Prefecture is a value obtained by the following formula (1)
  • steepness a45 has the inclination angle 45 ° or more dimensions relative to the actual area S x (gradient of 45 ° or higher)
  • the area ratio of the part are determined by the method described below.
  • ⁇ S (S x ⁇ S 0 ) / S 0 ⁇ 100 (%) (1)
  • the surface shape is measured with an atomic force microscope (AFM) to obtain three-dimensional data (f (x, y)).
  • the measurement can be performed, for example, under the following conditions. That is, the lithographic printing plate support is cut to a size of 1 cm square, set on a horizontal sample stage on a piezo scanner, the cantilever is approached to the sample surface, and when the region where the atomic force works is reached, XY Scanning in the direction, the unevenness of the sample is captured by the displacement of the piezo in the Z direction.
  • a piezo scanner that can scan 150 ⁇ m in the XY direction and 10 ⁇ m in the Z direction is used.
  • the cantilever has a resonance frequency of 120 to 400 kHz and a spring constant of 12 to 90 N / m (for example, SI-DF20, manufactured by Seiko Instruments Inc .; NCH-10, manufactured by NANOSENSORS Inc .; or AC-160TS, manufactured by Olympus Corporation). Used and measured in DFM mode (Dynamic Force Mode). Further, the reference plane is obtained by correcting the slight inclination of the sample by approximating the obtained three-dimensional data by least squares. At the time of measurement, 256 ⁇ 256 points are measured on a 25 ⁇ m ⁇ 25 ⁇ m square of the surface.
  • the resolution in the XY direction is 0.1 ⁇ m
  • the resolution in the Z direction is 0.15 nm
  • the scan speed is 50 ⁇ m / sec.
  • the surface area ratio ⁇ S is preferably 40 to 70%, more preferably 50 to 70%, because the printing durability and cleaner resistance of the lithographic printing plate precursor are improved.
  • the steepness a45 is more preferably 40 to 70%, and further preferably 45 to 65%.
  • the lithographic printing plate support of the present invention preferably has a surface on which a small wave structure having an average opening diameter of 0.01 to 0.50 ⁇ m is formed because the stain resistance of the lithographic printing plate precursor is good.
  • the small wave structure has a ratio between the depth and the opening diameter of the concavo-convex in which the opening diameter is more than 0.2 ⁇ m and not more than 0.5 ⁇ m because the printing durability and cleaner resistance of the lithographic printing plate precursor are better (
  • the average depth / opening diameter is preferably more than 0.20 and less than 0.60, more preferably more than 0.22 and less than 0.50, more preferably more than 0.25 and 0. More preferably, the structure is 40 or less.
  • the above small wave structure is preferably superimposed on a large wave structure having an average wavelength of 5 to 100 ⁇ m, and is superimposed on a large wave structure having an average wavelength of 10 to 60 ⁇ m, because the stain resistance of the lithographic printing plate precursor becomes better. More preferably, it is superposed on a large wave structure having an average wavelength of 20 to 60 ⁇ m.
  • the average aperture diameter of the small wave structure, the average value of the above ratio, and the average wavelength of the large wave structure are values obtained by measurement as follows.
  • the lithographic printing plate support of the present invention preferably has an average surface roughness Ra of 0.3 to 0.8 ⁇ m, more preferably 0.35 to 0.55 ⁇ m.
  • the average surface roughness Ra is measured two-dimensionally with a stylus type roughness meter (SUFCOM 575, manufactured by Tokyo Seimitsu Co., Ltd.), and the average roughness Ra specified in ISO 4287 is measured five times. The average value was defined as the average surface roughness Ra.
  • Two-dimensional roughness measurement was performed under the following conditions. (2D roughness measurement conditions) Cut-off value 0.8, tilt correction FLAT-ML, measurement length 3 mm, vertical magnification 10,000 times, scanning speed 0.3 mm / sec, stylus tip diameter 2 ⁇ m
  • the aluminum plate used in the production of the lithographic printing plate support of the present invention contains Fe, Si, Cu, Mn, Mg, Zn and Ti in the following ranges, with the balance being Al and inevitable impurities. It is.
  • the lithographic printing plate support of the present invention obtained after the roughening treatment also satisfies the following aluminum alloy composition.
  • the aluminum plate preferably further contains 0.001 to 0.02 mass% of Sn as an optional component. Below, the function and suitable content of these elements will be described.
  • Fe produces an Al—Fe intermetallic compound, and coexists with Si to produce an Al—Fe—Si intermetallic compound.
  • the recrystallization structure is refined by the dispersion of these compounds, and these compounds becomes the starting point of the generation of pits, and the formation of pits is made uniform and the pits are finely distributed during the electrochemical surface roughening treatment (hereinafter also referred to as “electrolytic treatment”).
  • the content of Fe is 0.10% by mass or more and less than 1.0% by mass from the viewpoint of uniformity of pits (grains) formed by electrolytic treatment, and 0.25 to 0.00%. It is preferably 8% by mass, more preferably more than 0.30% by mass and less than 0.40% by mass.
  • Si coexists with Fe to produce an Al—Fe—Si intermetallic compound, and the recrystallized structure is refined by the dispersion of this compound.
  • the pit formation at the time is made uniform and the pits are finely distributed.
  • the content of Si improves the uniformity of pits (grainy) formed by electrolytic treatment (particularly, electrolytic treatment performed using alternating current in an aqueous solution mainly composed of hydrochloric acid), From the reason that the printing durability and cleaner resistance of the lithographic printing plate precursor become better, it is more than 0.25% by mass and 1.00% by mass or less and more than 0.30% by mass and 0.95% by mass or less. And more preferably more than 0.50 mass% and 0.90 mass% or less.
  • the Cu content is 0.001% by mass or more and 0.1% by mass or less from the viewpoint of uniformity of pits (grains) formed by electrolytic treatment, and 0.01 to 0.00%.
  • the content is preferably 09% by mass, more preferably 0.05 to 0.08% by mass. Note that the content of Cu mixed from the aluminum ingot adopted to obtain the above-described Fe and Si contents is about 5 to 100 ppm (0.0005 to 0.01% by mass).
  • Mn is an element that functions to improve strength and heat softening resistance.
  • the strength means the tensile strength at normal temperature as a support for a lithographic printing plate, and 160 MPa or more is a practically preferable range.
  • Heat softening resistance is also called burning resistance, and is 0.2% proof stress after being heated at a temperature of about 280 ° C., and 90 MPa or more is a practically desirable range.
  • the content of Mn is 0.1% by mass or more and less than 1.0% by mass from the viewpoint of uniformity of pits (grains) formed by electrolytic treatment, and 0.15 to 0.005. It is preferably 90% by mass, more preferably 0.20 to 0.80% by mass.
  • Mg is an element that functions to improve the strength and heat softening resistance, similar to Mn, since most of it is solid-solved in aluminum.
  • the content of Mg improves the uniformity of pits (grainy) formed by electrolytic treatment (particularly, electrolytic treatment performed using alternating current in an aqueous solution mainly containing hydrochloric acid), From the reason that the printing durability and cleaner resistance of the lithographic printing plate precursor are improved, it is 0.001% by mass or more and less than 0.10% by mass, and preferably 0.005 to 0.09% by mass. More preferably, the content is 0.01% by mass or more and less than 0.05% by mass.
  • the oxide film formed on the surface of the aluminum plate includes an oxide film (natural oxide film) formed when left at room temperature and an oxide film formed during heat treatment in the manufacturing process. Affects both.
  • the Zn content improves the uniformity of pits (grains) formed by electrolytic treatment (particularly, electrolytic treatment performed using alternating current in an aqueous solution mainly composed of hydrochloric acid), From the reason that the printing durability and cleaner resistance of the lithographic printing plate precursor are improved, it is 0.10% by mass or more and 0.30% by mass or less, and preferably 0.11 to 0.29% by mass. .
  • Ti refines the ingot structure and refines the crystal grains. As a result, pit formation during the electrolytic treatment is made uniform, and streaks are prevented when processing as a printing plate is performed.
  • the content of Ti is 0.001 to 0.05% by mass and 0.005 to 0.03% by mass from the viewpoint of the uniformity of pits (grains) formed by electrolytic treatment. Is preferred.
  • Sn is an element that contributes to the uniformity of pit formation during electrolytic treatment.
  • the content of Sn, which is an optional component is preferably 0.001 to 0.02% by mass, and preferably 0.003 to 0.01% by mass from the viewpoint of uniformly generating deep pits. More preferably.
  • Inevitable impurities include, for example, L. F.
  • the amount of impurities described in Mondolfo's “Aluminum Alloys: Structure properties” (1976) and the like may be contained.
  • Examples of inevitable impurities contained in the aluminum alloy plate include B, Ga, Ni, Pb, Na, V, Nb, and Cr.
  • Si, Mn and Zn have a mass ratio (Si / Zn) of Si and Zn because the uniformity of pits (grains) formed by electrolytic treatment is good.
  • Zn) is preferably 1.0 to 8.0 and / or the mass ratio of Mn to Zn (Mn / Zn) is preferably 0.7 to 8.0.
  • the mass ratio (Si / Zn) between Si and Zn is preferably 1.5 to 7.0, and more preferably 3.0 to 5.0.
  • the mass ratio of Mn to Zn (Mn / Zn) is preferably 1.0 to 7.5, and more preferably 2.0 to 7.0.
  • the method for producing the aluminum plate (rolled aluminum) using the aluminum alloy having such a composition is not particularly limited, and any of the conventionally known continuous casting method and DC casting method can be adopted, and cleaning is performed according to a conventional method. Processing may be performed. Specifically, an aluminum alloy having the above-described composition is ingoted, the surface of the rolled surface of the resulting ingot is chamfered by 3 to 15 mm, and then the temperature is increased from 450 to 580 ° C. at a temperature rising rate of 20 to 60 ° C./hr.
  • a preferred example is a method of carrying out cold rolling to obtain a rolled plate having a thickness of 0.1 to 0.4 mm.
  • intermediate annealing may be performed after hot rolling, it is preferable not to perform intermediate annealing from the viewpoint of simplifying the rolling process and reducing the occurrence rate of failure and energy consumption in the rolling process.
  • the aluminum plate (rolled aluminum) may be a continuous belt-like sheet material or an aluminum web that is a plate material, and is a sheet-like sheet cut to a size corresponding to a planographic printing plate precursor shipped as a product. There may be.
  • the thickness of the aluminum plate is about 0.1 to 0.6 mm, preferably 0.15 to 0.4 mm, and more preferably 0.2 to 0.3 mm. This thickness can be appropriately changed according to the size of the printing press, the size of the printing plate, the user's desires, and the like.
  • the surface roughening treatment applied to the aluminum plate includes an electrochemical surface roughening treatment, and satisfies the above-described surface shape (surface area ratio ⁇ S and steepness a45) of the lithographic printing plate support of the present invention obtained after the processing. If it is a thing, it will not specifically limit.
  • the roughening treatment include mechanical roughening treatment, chemical etching treatment in an aqueous alkali solution (alkali etching treatment), and chemical etching treatment in an aqueous acid solution (desmut treatment).
  • Preferred examples include an electrochemical surface roughening treatment using an alternating current in an acidic aqueous solution, an alkali etching treatment and a desmut treatment in this order.
  • the electrochemical surface roughening treatment is preferably performed using an alternating current in an aqueous solution mainly composed of hydrochloric acid.
  • the aqueous solution mainly composed of hydrochloric acid preferably has a hydrochloric acid concentration of 5 to 20 g / L, more preferably 8 to 15 g / L, and an aluminum ion concentration of 3 to 20 g / L. It is preferably 5 to 18 g / L.
  • the concentration of aluminum ions in an aqueous solution mainly composed of hydrochloric acid can be adjusted by adding aluminum chloride to the aqueous hydrochloric acid solution having the above hydrochloric acid concentration.
  • nitric acid or sulfuric acid to the aqueous solution mainly composed of hydrochloric acid at a rate of 1 to 30 g / L, and it is particularly preferable to add sulfuric acid at a rate of 1 to 5 g / L. More preferred.
  • FIG. 1 is a schematic cross-sectional view showing an example of an electrolytic treatment tank used for electrochemical surface roughening in the method for producing a lithographic printing plate support of the present invention.
  • the electrolytic treatment tank 1 shown in FIG. 1 has four electrolytic tanks of a first tank 11, a second tank 12, a third tank 13, and a fourth tank 14, and an aluminum plate 15 is shown in FIG.
  • the path roll 16 is conveyed in the direction indicated by the arrow, and each electrode tank has an electrolyte solution 17, an electrode 18, and an AC power source 19.
  • ⁇ Anodizing treatment> In the present invention, after the surface roughening treatment, it is preferable to perform anodization treatment from the viewpoint of improving the water retention and wear resistance (strength) of the lithographic printing plate support surface.
  • the treatment conditions for the anodizing treatment are not particularly limited. For example, paragraphs [0050] to [0055] in JP-A-2002-339098 (Patent Document 1), paragraph [0042] in JP-A-2007-260987, etc. The known conditions described in the above can be employed as appropriate.
  • ⁇ Sealing treatment> when the anodic oxidation treatment is performed, the aluminum plate on which the anodic oxidation film is formed is brought into contact with boiling water, hot water or water vapor to seal small pores (micropores) existing in the anodic oxidation treatment. Sealing treatment may be performed. These can be performed according to known methods.
  • ⁇ Hydrophilic treatment> when the anodizing treatment or the sealing treatment is performed, a method of immersing in an aqueous solution of an alkali metal silicate such as sodium silicate or potassium silicate after these treatments, a hydrophilic vinyl polymer Alternatively, the hydrophilic treatment is preferably performed by a method of applying a hydrophilic compound to form a hydrophilic undercoat layer.
  • the treatment conditions for the hydrophilization treatment are not particularly limited, and for example, known conditions described in paragraphs [0043] to [0048] of JP-A-2007-260987 can be appropriately employed.
  • the support for the lithographic printing plate It is preferred to dry the surface of the body. Drying is preferably performed after the final treatment of the surface treatment, after washing with water and draining with a nip roller.
  • the drying temperature is preferably 70 ° C or higher, more preferably 80 ° C or higher, preferably 110 ° C or lower, more preferably 100 ° C or lower.
  • the drying time is preferably 1 second or longer, more preferably 2 seconds or longer, more preferably 20 seconds or shorter, and even more preferably 15 seconds.
  • the lithographic printing plate support of the present invention can be provided with an image recording layer such as a photosensitive layer and a heat-sensitive layer exemplified below to form the lithographic printing plate precursor of the present invention.
  • the image recording layer is not particularly limited, but is described in, for example, paragraphs [0042] to [0198] of JP-A No. 2003-1956, paragraphs [0147] to [0176] of JP-A No. 2006-88369, and the like.
  • Preferred examples include conventional positive type, conventional negative type, photopolymer type (photopolymerization type photosensitive composition), thermal positive type, thermal negative type, and non-processable type capable of on-press development.
  • a coating layer made of an organic polymer compound can be provided on the back surface of the lithographic printing plate precursor according to the present invention, if necessary, in order to prevent the image recording layer from being damaged when it is stacked.
  • the lithographic printing plate precursor according to the invention is made into a lithographic printing plate by various processing methods according to the image recording layer.
  • the actinic ray light source used for image exposure include a mercury lamp, a metal halide lamp, a xenon lamp, and a chemical lamp.
  • the laser beam include a helium-neon laser (He—Ne laser), an argon laser, a krypton laser, a helium-cadmium laser, a KrF excimer laser, a semiconductor laser, a YAG laser, and a YAG-SHG laser.
  • the image recording layer is one of a thermal positive type, a thermal negative type, a conventional negative type, a conventional positive type, and a photopolymer type
  • a developer is preferably an alkaline developer, and more preferably an alkaline aqueous solution substantially free of an organic solvent.
  • the developing solution which does not contain alkali metal silicate substantially is also preferable.
  • a method of developing using a developer substantially not containing an alkali metal silicate a method described in detail in JP-A No. 11-109637 can be used.
  • a developer containing an alkali metal silicate can also be used.
  • the surface treatment was performed by continuously performing the following various treatments (a) to (j).
  • (A) Etching treatment in alkaline aqueous solution (first etching treatment)
  • the aluminum plate was etched by spraying an aqueous solution of caustic soda concentration of 370 g / L, aluminum ion concentration of 100 g / L, and a temperature of 50 ° C. from a spray tube.
  • the etching amount of the surface subjected to the electrochemical roughening treatment after the aluminum plate was 1 g / m 2 . Thereafter, the liquid was drained with a nip roller, further washed with water, and further drained with a nip roller.
  • (B) Desmut treatment in acidic aqueous solution (first desmut treatment)
  • the aluminum plate was sprayed with an aqueous solution having a sulfuric acid concentration of 170 g / L, an aluminum ion concentration of 5 g / L, and a temperature of 30 ° C. from a spray tube, and desmutted for 5 seconds.
  • a waste liquid of (f) anodizing treatment described later was used as the sulfuric acid aqueous solution. Thereafter, the liquid was drained with a nip roller, further washed with water, and further drained with a nip roller.
  • Electrochemical roughening treatment As an electrolytic solution, an aqueous solution having a hydrochloric acid concentration of 10 g / l, an aluminum ion concentration of 15 g / l, a sulfuric acid concentration of 2.5 g / l, and a temperature of 33 ° C. , A current is controlled by inverter control using an IGBT element, a sine wave is generated using a power source capable of generating an arbitrary waveform of alternating current, and an aluminum plate subjected to the treatment of (b) is electrochemically applied. Roughening treatment was performed. Here, the alternating current passed through the aluminum plate was a sine wave, the frequency was 60 Hz, and the duty was 0.5.
  • the amount of electricity was 400 C / dm 2 as the total amount of electricity during the cathode reaction of the aluminum plate. Further, the current density during the anode reaction of the aluminum plate at the peak of alternating current was 80 A / dm 2 . The amount of electricity in the anodic and cathodic reactions was the same.
  • As the electrolytic cell a 4-tank type electrolytic treatment tank shown in FIG. 1 was used, and the amount of electricity in each electrolytic cell was adjusted to 100 C / dm 2 .
  • the passing time of aluminum between the electrolytic cells ie, the downtime) was 4 seconds. Thereafter, the liquid was drained with a nip roller, further washed with water, and further drained with a nip roller.
  • an electrolytic solution (temperature 50 ° C.) in which aluminum sulfate was dissolved in a 170 g / L sulfuric acid aqueous solution to make an aluminum ion concentration 7 g / L was used.
  • the anodizing treatment was performed so that the average current density during the anodic reaction of the aluminum plate was 15 A / dm 2 , and the final oxide film amount was 2.4 g / m 2 . Thereafter, the liquid was drained with a nip roller, further washed with water, and further drained with a nip roller.
  • an image recording layer coating solution B1 having the following composition was coated on the component with a wire bar so as to be 0.85 g / m 2 after drying, and dried at 140 ° C. for 50 seconds.
  • the image recording layer coating liquid B2 having the following composition was applied with a wire bar so as to be 0.25 g / m 2 after drying, and dried at 140 ° C. for 1 minute to form a multilayer thermal positive type image recording layer.
  • a lithographic printing plate precursor was obtained.
  • ⁇ Composition of coating liquid B2 for image recording layer> ⁇ Phenol / m, p-cresol novolak (phenol / m-cresol / p-cresol 5/3/2 (molar ratio), weight average molecular weight 4000) 0.274 g -0.029 g of cyanine dye B represented by the above formula -Structure polymer C / Methyl ethyl ketone 30% solution represented by the following formula 0.14 g -Quaternary ammonium salt D shown by the following formula 0.004 g ⁇ Sulphonium salt E represented by the following formula: 0.065 g ⁇ Fluorosurfactant (Megafac F-780, manufactured by DIC Corporation) 0.004g ⁇ Fluorosurfactant (Megafac F-782, manufactured by DIC Corporation) 0.020g ⁇ Methyl ethyl ketone 10.39g ⁇ 1-methoxy-2-propanol 20.98g
  • the prepared lithographic printing plate precursor was imaged using a TrendSetter manufactured by Creo at a drum rotation speed of 150 rpm and a beam intensity of 10 W. Thereafter, using a PS processor 940H manufactured by FUJIFILM Corporation with an alkali developer having the following composition, the solution temperature was kept at 30 ° C. and development was performed for 20 seconds to obtain a lithographic printing plate. All the lithographic printing plate precursors had good sensitivity.
  • the resulting lithographic printing plate was printed on a Lithrone printing machine manufactured by Komori Corporation using DIC-GEOS (N) ink made by DIC Corporation.
  • DIC-GEOS N
  • Printing durability was evaluated based on the number of printed sheets at the time when it was recognized.
  • Table 2 The meanings of symbols in Table 2 are as follows. A: 40,000 sheets or more AB: 30,000 sheets or more and less than 40,000 sheets B: 20,000 sheets or more and less than 30,000 sheets BC: 10,000 or more sheets but less than 20,000 sheets C: Less than 10,000 sheets
  • Example 11 Preparation of lithographic printing plate precursor (Example 11) On the lithographic printing plate support prepared in Example 11, an undercoat layer coating solution having the following composition was applied so that the dry coating amount was 20 mg / m 2 to form an undercoat layer.
  • an image recording layer coating solution having the following composition was bar coated, followed by oven drying at 70 ° C. for 60 seconds to form an image recording layer having a dry coating amount of 0.6 g / m 2 .
  • ⁇ Image recording layer coating solution> -Polymer fine particle aqueous dispersion prepared by the method shown below 20.0 g ⁇ Infrared absorber (1) represented by the following formula 0.2 g ⁇ Initiator Irgacure 250 (Ciba Specialty Chemicals) 0.5g -Radical polymerizable compound U-4HA represented by the following formula (U-20) (manufactured by Shin-Nakamura Chemical Co., Ltd.) 1.50 g ⁇ Mercapto-3-triazole 0.2g BYK 336 (Byk Chimie) 0.4g ⁇ Klucel M (Hercules) 4.8g ⁇ ELVACITE 4026 (manufactured by Ineos Acrylica) 2.5g ⁇ N-propanol 55.0g ⁇ 2-butanone 17.0g
  • the particle size was 150 nm.
  • the particle size distribution is obtained by taking an electron micrograph of polymer fine particles, measuring a total of 5000 fine particle sizes on the photograph, and a logarithmic scale between 0 and the maximum value of the obtained particle size measurement values. And the frequency of appearance of each particle size was plotted and obtained.
  • the particle size of spherical particles having the same particle area as that on the photograph was used as the particle size.
  • BYK 336 modified dimethylpolysiloxane copolymer (25% by mass xylene / methoxypropyl acetate solution)
  • KLUCEL M Hydroxypropyl cellulose (2% by weight aqueous solution)
  • ELVACITE 4026 Hyperbranched polymethyl methacrylate (10% by mass 2-butanone solution)
  • an overcoat layer coating solution having the following composition was further bar-coated on the image recording layer formed as described above, followed by oven drying at 120 ° C. for 60 seconds to obtain a dry coating amount of 0.15 g / m 2 .
  • a protective layer was formed to obtain a lithographic printing plate precursor.
  • planographic printing plate precursor The produced planographic printing plate precursor of Example 11 was evaluated for on-press developability, printing durability, cleaner resistance (chemical resistance) and stain resistance by the following methods.
  • On-machine developability The resulting lithographic printing plate precursor was exposed under the conditions of an external drum rotation speed of 1000 rpm, a laser output of 70%, and a resolution of 2400 dpi using a Fujifilm Corporation Luxel PLASETTER T-6000III equipped with an infrared semiconductor laser. did.
  • the exposure image included a solid image and a 50% halftone dot chart of a 20 ⁇ m dot FM screen.
  • the obtained exposed original plate was attached to the plate cylinder of a printing machine LITHRONE 26 manufactured by Komori Corporation without developing.
  • a lithographic printing plate using the lithographic printing plate support of Comparative Examples 1 to 3 having a surface area ratio ⁇ S of less than 35% and a steepness a45 of less than 35% It was found that the original plates were inferior in printing durability and cleaner resistance when both lithographic printing plates were used.
  • the lithographic printing plate precursors using the lithographic printing plate supports of Examples 1 to 10 and Examples 12 to 17 in which the surface area ratio ⁇ S and the steepness a45 are both within a predetermined range are all lithographic plates. It was found that when printing plates were used, they were excellent in printing durability and cleaner resistance.
  • the lithographic printing plate precursor using the lithographic printing plate support of Examples 5 to 10 in which the surface area ratio ⁇ S is in the range of 50 to 80% and the steepness a45 is in the range of 45 to 75% It was found that the cleaner resistance was further improved. Further, from the results of Examples 1 to 10 and Examples 12 to 17, when the predetermined ratio (depth / opening diameter) increases in the small wave structure, there is a tendency that printing durability and cleaner resistance tend to be good. I understood. Further, from the results of Examples 1 to 10 (especially Examples 6 and 9) and Examples 12 to 15, by containing Sn in a specific amount (0.001 to 0.02% by mass), cleaner resistance and It was found that the stain resistance was further improved.
  • Electrolytic processing tank 11 1st tank 12 2nd tank 13 3rd tank 14 4th tank 15 Aluminum plate 16 Pass roll 17 Electrolytic solution 18 Electrode 19 AC power supply

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  • Chemical & Material Sciences (AREA)
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  • Chemical Kinetics & Catalysis (AREA)
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  • Organic Chemistry (AREA)
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  • General Physics & Mathematics (AREA)
  • Printing Plates And Materials Therefor (AREA)
  • Materials For Photolithography (AREA)
PCT/JP2013/072314 2012-09-18 2013-08-21 平版印刷版用支持体および平版印刷版原版 WO2014045789A1 (ja)

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BR112015006033A BR112015006033A2 (pt) 2012-09-18 2013-08-21 suporte de placa de impressão litográfica e placa original de placa de impressão litográfica

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6454059B1 (ja) * 2017-10-31 2019-01-16 富士フイルム株式会社 平版印刷版原版、平版印刷版の製造方法、印刷方法およびアルミニウム支持体の製造方法

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US20180056698A1 (en) * 2016-09-01 2018-03-01 Novelis Inc. Aluminum-manganese-zinc alloy

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63135294A (ja) * 1986-11-27 1988-06-07 Furukawa Alum Co Ltd 平版印刷版用アルミニウム合金支持体およびその製造方法
JPH01306288A (ja) * 1988-06-06 1989-12-11 Fuji Photo Film Co Ltd 平版印刷版用支持体
JP2002103840A (ja) * 2000-09-26 2002-04-09 Fuji Photo Film Co Ltd 平版印刷版用アルミニウム支持体の製造方法、平版印刷版用アルミニウム支持体、および平版印刷版原版
JP2004009631A (ja) * 2002-06-10 2004-01-15 Fuji Photo Film Co Ltd 平版印刷版用支持体
JP2004114677A (ja) * 2002-09-02 2004-04-15 Fuji Photo Film Co Ltd 平版印刷版用支持体およびそれを用いる平版印刷版原版
JP2004255641A (ja) * 2003-02-25 2004-09-16 Fuji Photo Film Co Ltd 平版印刷版用支持体および平版印刷版原版

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1188580B1 (en) * 2000-09-14 2008-08-13 FUJIFILM Corporation Aluminum support for planographic printing plate, process for its production, and planographic printing master place

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63135294A (ja) * 1986-11-27 1988-06-07 Furukawa Alum Co Ltd 平版印刷版用アルミニウム合金支持体およびその製造方法
JPH01306288A (ja) * 1988-06-06 1989-12-11 Fuji Photo Film Co Ltd 平版印刷版用支持体
JP2002103840A (ja) * 2000-09-26 2002-04-09 Fuji Photo Film Co Ltd 平版印刷版用アルミニウム支持体の製造方法、平版印刷版用アルミニウム支持体、および平版印刷版原版
JP2004009631A (ja) * 2002-06-10 2004-01-15 Fuji Photo Film Co Ltd 平版印刷版用支持体
JP2004114677A (ja) * 2002-09-02 2004-04-15 Fuji Photo Film Co Ltd 平版印刷版用支持体およびそれを用いる平版印刷版原版
JP2004255641A (ja) * 2003-02-25 2004-09-16 Fuji Photo Film Co Ltd 平版印刷版用支持体および平版印刷版原版

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6454059B1 (ja) * 2017-10-31 2019-01-16 富士フイルム株式会社 平版印刷版原版、平版印刷版の製造方法、印刷方法およびアルミニウム支持体の製造方法

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