Patent application number | Description | Published |
20090260531 | ALUMINUM ALLOY PLATE FOR LITHOGRAPHIC PRINTING PLATE, LITHOGRAPHIC PRINTING PLATE SUPPORT, PRESENSITIZED PLATE, METHOD OF MANUFACTURING ALUMINUM ALLOY PLATE FOR LITHOGRAPHIC PRINTING PLATE AND METHOD OF MANUFACTURING LITHOGRAPHIC PRINTING PLATE SUPPORT - An aluminum alloy plate for a lithographic printing plate capable of obtaining a lithographic printing plate having an excellent resistance to spotting, a method of manufacturing such aluminum alloy plate, a lithographic printing plate support obtained by using such aluminum alloy plate, and a presensitized plate and in particular an on-machine developable presensitized plate are provided. The aluminum alloy plate contains 0.08 to 0.45 wt % of iron and to 0.20 wt % of silicon, with the balance being inadvertent impurities and aluminum, and the content of aluminum-iron intermetallic compounds is not more than 0.05 wt %. | 10-22-2009 |
20120160118 | LITHOGRAPHIC PRINTING PLATE PRECURSOR AND LITHOGRAPHIC PRINTING METHOD - A lithographic printing plate precursor includes a support and an image-recording layer containing a binder, a radical polymerizable compound and a radical polymerization initiator, wherein the binder comprises a multifunctional thiol having from 6 to 10 functional groups as a nucleus and polymer chains connected to the nucleus through a sulfide bond and the polymer chains have a polymerizable group. | 06-28-2012 |
20120183901 | METHOD FOR PRODUCING LITHOGRAPHIC PRINTING PLATE PRECURSOR - To provide a method for producing a lithographic printing plate precursor excellent in development property and printing durability, which method restrains mixture of both layers at coating and drying an overcoat layer on an image-recording layer. A method for producing a polymerizable lithographic printing plate precursor including (a) a step of coating a coating solution of an image-recording layer containing (A) a sensitizing dye, (B) a radical polymerization initiator and (C) a radical polymerizable compound on a support, (b) a first drying step of supplying hot air to the image-recording layer, (c) a second drying step of supplying hot air and superheated vapor to the image-recording layer after the first drying step, (d) a step of coating an overcoat layer on the image-recording layer, and (e) a step of drying the overcoat layer. | 07-19-2012 |
20130089818 | LITHOGRAPHIC PRINTING PLATE PRECURSOR, PLATE MAKING METHOD THEREOF AND NOVEL POLYMER COMPOUND - A lithographic printing plate precursor includes: a support; and an image-recording layer containing (A) a polymerization initiator, (B) a sensitizing dye and (C) a polymerizable compound, and the image-recording layer or an undercoat layer which is optionally provided between the support and the image-recording layer comprises (D) a polymer compound comprising (a1) a repeating unit having a side chain having a structure represented by the following formula (a1-1) and (a2) a repeating unit having a side chain having at least one structure of the formulae (a2-1), (a2-2), (a2-3), (a2-4), (a2-5) and (a2-6) as defined herein. | 04-11-2013 |
20130137040 | LITHOGRAPHIC PRINTING PLATE PRECURSOR AND METHOD OF PRODUCING THEREOF - To provide an on-press development type lithographic printing plate precursor excellent in ink receptivity and printing durability. A lithographic printing plate precursor which includes a support, an image-recording layer which contains a sensitizing dye, a polymerization initiator and a polymerizable compound and an unexposed area of which is capable of being removed by supplying after exposure, at least any of printing ink and dampening water on a printing machine, and an overcoat layer containing a water-soluble resin in this order, wherein the overcoat layer is substantially not mixed with the image-recording layer. | 05-30-2013 |
20140080054 | LITHOGRAPHIC PRINTING PLATE PRECURSOR AND PLATE MAKING METHOD THEREOF - A lithographic printing plate precursor which is excellent in both the on-press development property and the printing durability and which is excellent particularly in the on-press development property after preservation for a long period of time, wherein the lithographic printing plate precursor includes an intermediate layer containing a polymer compound including a repeating unit (a1) having a support-adsorbing group and a repeating unit (a2) having a polyoxyalkylene group having a repeating number of oxyalkylene units from 8 to 120 between a support and a polymerizable image-recording layer, and contains a compound having a molecular weight of 1,500 or less and having an oxyalkylene group in at least any of the intermediate layer and the polymerizable image-recording layer. | 03-20-2014 |
20140290516 | PLATE MAKING METHOD OF LITHOGRAPHIC PRINTING PLATE - A plate making method of a lithographic printing plate, includes performing the following steps a) to d) in this order: a) supplying a negative-working lithographic printing plate precursor having on a support an image-recording layer containing an infrared absorbing agent, an initiator represented by formula (I) as defined herein and a polymerizable compound, wherein the image-recording layer is capable of being removed with at least one of ink and dampening water, b) image-exposing the negative-working lithographic printing plate precursor with an infrared laser, c) exposing the negative-working lithographic printing plate precursor to light for 5 minutes or more under a white lamp which has one light emission peak at 400 to 500 nm and one light emission peak at 500 to 600 nm and does not emit light at 380 nm or less, and d) removing an unexposed area with at least one of ink and dampening water. | 10-02-2014 |