Abstract: An active-energy-ray-curable inkjet ink composition which contains at least two polymerizable monomers each having an unsaturated bond, wherein the maximum value of the difference in electric charge of carbon atoms that constitute the unsaturated bond in each of the at least two polymerizable monomers is 0.24 to 0.46 inclusive and the total content of ions of the elements Fe, Co, Ca, Na, Mg, Al, Ti, Sn and Zn is 5.0 to 100 ppm inclusive, or the difference in e value of the unsaturated double bond moiety in each of the at least two polymerizable monomers is 2.8 to 6 inclusive, and wherein a compound which is unpolymerizable and has a substituent capable of reacting with a nucleophilic agent or an acidic compound is contained.

Abstract: Provided is an ultraviolet curable inkjet ink and an inkjet image formation method that uses said inkjet ink. The inkjet ink can be ejected from an inkjet head without being diluted by a solvent, has high photo curing sensitivity and produces high quality images with excellent weather resistance (smear resistance). The inkjet ink is characterized by a polymerizable compound which contains a maleimide compound having a chiral group and a compound selected from a vinyl ether compound and a N-vinyl compound.

Abstract: Provided is a photocurable ink jet ink, which contains maleimide compounds and with which low-temperature precipitation is controlled. In concrete terms, provided is a photocurable ink jet ink containing a first maleimide compound represented by general formula (1), a second maleimide compound having a chemical structure different from the first maleimide compound, and at least one butene diacid derivative.

Abstract: An active-energy-ray-curable inkjet ink composition which contains at least two polymerizable monomers each having an unsaturated bond, wherein the maximum value of the difference in electric charge of carbon atoms that constitute the unsaturated bond in each of the at least two polymerizable monomers is 0.24 to 0.46 inclusive and the total content of ions of the elements Fe, Co, Ca, Na, Mg, Al, Ti, Sn and Zn is 5.0 to 100 ppm inclusive, or the difference in e value of the unsaturated double bond moiety in each of the at least two polymerizable monomers is 2.8 to 6 inclusive, and wherein a compound which is unpolymerizable and has a substituent capable of reacting with a nucleophilic agent or an acidic compound is contained.

Abstract: The invention provides a non-aqueous jet printing ink which has printability (abrasion resistance and resistivity to wiping with alcohol) suitable for recording media made of plastics such as polyvinyl chloride and which is excellent in safety and can be used without problematic odor, and a method of ink-jet recording with the ink. The non-aqueous jet printing ink is characterized by containing, as the essential components, a pigment, a pigment derivative having an acid group, a fixing resin, and a compound (A) consisting of one or more members selected from the group consisting of compounds represented by the general formulae (1) and (2).

Abstract: Provided is an ultraviolet curable inkjet ink and an inkjet image formation method that uses said inkjet ink. The inkjet ink can be ejected from an inkjet head without being diluted by a solvent, has high photo curing sensitivity and produces high quality images with excellent weather resistance (smear resistance). The inkjet ink is characterized by a polymerizable compound which contains a maleimide compound having a chiral group and a compound selected from a vinyl ether compound and a N-vinyl compound.

Abstract: The present invention provides an actinic energy radiation curable ink-jet ink exhibiting excellent ink storage stability, nozzle ink repellency, and ejection stability, and also exhibiting excellent curability, anti-abrasion properties, solvent resistance, flexibility, weather resistance, and substrate adhesion properties even under various ambience factors and irradiation conditions, as well as an ink-jet recording method and printed matter using the same. In an actinic energy radiation curable ink-jet ink containing a cationically polymerizable compound and a photo-cationic polymerization initiator, an actinic energy radiation curable ink-jet ink wherein a cationically polymerizable compound having a vinyl ether group as a reactive group is contained at 50.0% by mass or more and the halogen ion content is 1.0 ?g/g of the ink-100 ?g/g of the ink.

Abstract: Disclosed is a nonaqueous ink jet ink that is suitable for printing (scratch resistance and resistance to alcohol wiping) on recording media of plastics such as polyvinyl chloride, is highly safe, can be used without posing any problem of odor, has excellent properties of ink ejection from an ink jet head, and can realize a good printed image quality. Also disclosed are a process for producing a nonaqueous ink jet ink and an ink jet recording method using the nonaqueous ink jet ink. The process for producing a nonaqueous ink jet ink is a process for producing a nonaqueous ink jet ink containing at least an organic solvent, a pigment, and a fixing resin. The process is characterized in that the fixing resin satisfies a b/a value of not more than 0.

Abstract: Disclosed is a nonaqueous ink jet ink that is suitable for printing (scratch resistance and resistance to alcohol wiping) on recording media of plastics such as polyvinyl chloride, is highly safe, can be used without posing any problem of odor, has excellent properties of ink ejection from an ink jet head, and can realize a good printed image quality. Also disclosed are a process for producing a nonaqueous ink jet ink and an ink jet recording method using the nonaqueous ink jet ink. The process for producing a nonaqueous ink jet ink is a process for producing a nonaqueous ink jet ink containing at least an organic solvent, a pigment, and a fixing resin. The process is characterized in that the fixing resin satisfies a b/a value of not more than 0.

Abstract: The invention provides a non-aqueous jet printing ink which has printability (abrasion resistance and resistivity to wiping with alcohol) suitable for recording media made of plastics such as polyvinyl chloride and which is excellent in safety and can be used without problematic odor, and a method of ink-jet recording with the ink. The non-aqueous jet printing ink is characterized by containing, as the essential components, a pigment, a pigment derivative having an acid group, a fixing resin, and a compound (A) consisting of one or more members selected from the group consisting of compounds represented by the general formulae (1) and (2).

Abstract: Provided is an actinic energy radiation curable ink-jet ink, an ink-jet recording method, and printed matter satisfying ink storage stability, ejection stability, weather resistance, flexibility, safety, odorless properties. An actinic energy radiation curable ink-jet ink comprises a cationically polymerizable compound and a photo-cationic polymerization initiator, wherein the cationically polymerizable compound comprises a vinyl ether group as a reactive group, the photo-cationic polymerization initiator is a photo acid generator, an amount of generation of protonic acid from the photo acid generator is 1×10?4 mol/L or less, and comprising a radical polymerization inhibitor; wherein the amount of generation of protonic acid is defined as a difference of a hydrogen ion concentration (mol/L) in dioxane solution between immediately after preparation and after refluxing when 0.02 mol/L of the photo acid generator in dioxane solution are refluxed 20 hours under atmospheric pressure.

Abstract: The present invention provides an actinic energy radiation curable ink-jet ink exhibiting excellent ink storage stability, nozzle ink repellency, and ejection stability, and also exhibiting excellent curability, anti-abrasion properties, solvent resistance, flexibility, weather resistance, and substrate adhesion properties even under various ambience factors and irradiation conditions, as well as an ink-jet recording method and printed matter using the same. In an actinic energy radiation curable ink-jet ink containing a cationically polymerizable compound and a photo-cationic polymerization initiator, an actinic energy radiation curable ink-jet ink wherein a cationically polymerizable compound having a vinyl ether group as a reactive group is contained at 50.0% by mass or more and the halogen ion content is 1.0 ?g/g of the ink-100 ?g/g of the ink.

Abstract: A concentrated bleach-fixer composition for a silver halide color photographic material is disclosed, comprising an aminopolycarboxylic acid iron complex and a thiosulfate, wherein the bleach-fixer composition further comprises at least one compound selected from a phosphate salt, polyphosphate salt, an imidazole compound and a diaminotriazine compound; and the aminopolycarboxylic acid iron complex having a Fe(II) ratio of not less than 50 mol %.

Abstract: A manufacturing method for a solid processing composition for processing a silver halide photographic light sensitive material, wherein the composition is manufactured by using a stirring granulation method, and at least part of said stirring granulation is performed in the temperature range of 35.degree. C. to 120.degree. C.The manufacturing method for the solid processing composition mentioned above, wherein the content of the added solution in the stirring granulation process is 0.01 to 2.0 weight % of the total weight of said solid processing composition and wherein not less than 60% of the total weight of said solid processing composition has particle size of 1.0 .mu.m to 150 .mu.m.The solid processing composition mentioned above may contain reductone derivative, sugar derivative and polyethylene glycol derivative.