An ink composition includes a polymeric binder having an addition copolymer and a ketone aldehyde resin. The addition copolymer is chosen from acrylic resins, vinyl resins including copolymers of vinyl chloride and vinyl acetate, and mixtures and combinations thereof. The ink composition further includes a liquid carrier with at least one organic solvent.

An ink composition includes a polymeric binder having an addition copolymer and a ketone aldehyde resin. The addition copolymer is chosen from acrylic resins, vinyl resins including copolymers of vinyl chloride and vinyl acetate, and mixtures and combinations thereof. The ink composition further includes a liquid carrier with at least one organic solvent.

A rosin-modified phenol resin (A) is a reaction product of a rosin (b), a phenol (c), a formaldehyde (d) and a polyol (e), wherein the rosin (b) contains 0.1 to 3.5% by mass of a monoterpene (a1) and a sesquiterpene (a2) relative to the total weight of the rosin, and Mw/Mn which is the ratio of the weight average molecular weight (Mw) and the number average molecular weight (Mn) is 10 to 60.

A rosin-modified phenol resin (A) is a reaction product of a rosin (b), a phenol (c), a formaldehyde (d) and a polyol (e), wherein the rosin (b) contains 0.1 to 3.5% by mass of a monoterpene (a1) and a sesquiterpene (a2) relative to the total weight of the rosin, and Mw/Mn which is the ratio of the weight average molecular weight (Mw) and the number average molecular weight (Mn) is 10 to 60.

A radiation curable solder mask inkjet ink contains a photo-initiator, a polymerizable compound and a flame retardant wherewith a high quality solder mask withstanding the high thermal stress during the soldering process while maintaining excellent physical properties and flame retardancy may be produced.

A radiation curable solder mask inkjet ink contains a photo-initiator, a polymerizable compound and a flame retardant wherewith a high quality solder mask withstanding the high thermal stress during the soldering process while maintaining excellent physical properties and flame retardancy may be produced.

An inkjet ink that includes (A) a terpene phenol resin and (B) a compound of formula (I) wherein R is an alkyl group having 8 to 22 carbon atoms or an alkenyl group having 8 to 22 carbon atoms, n is 0 or 1, p is an integer from 1 to 40, and q is an integer from 1 to 40. A printed article including the inkjet ink in dried form, and a method of forming a printed image with a thermal inkjet printhead are also provided.

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A plasma-curable ink composition for offset printing having high reactivity with plasma and capable of being hardened into a sufficiently dried state even in the use of plasma generated by a remote-type plasma generator, and a method for producing printed matter and a method for printing information using the same. The plasma-curable ink composition for offset printing comprises a pigment, a binder resin, and at least one specific ingredient selected from the group consisting of castor oil, polymerized oil, and alkyd resins having an acid value of 10 mg KOH/g or more.

A plasma-curable ink composition for offset printing having high reactivity with plasma and capable of being hardened into a sufficiently dried state even in the use of plasma generated by a remote-type plasma generator, and a method for producing printed matter and a method for printing information using the same. The plasma-curable ink composition for offset printing comprises a pigment, a binder resin, and at least one specific ingredient selected from the group consisting of castor oil, polymerized oil, and alkyd resins having an acid value of 10 mg KOH/g or more.

A radiation curable inkjet ink including an adhesion promoter including (1) at least one a free radical polymerizable group selected from the group consisting of an acrylate, a methacrylate, an acryl amide and a methacryl amide; (2) at least one aliphatic tertiary amine; and (3) at least one carboxylic acid or salt thereof with the proviso that the carboxylic acid is linked to an aliphatic tertiary amine via a divalent linking group selected from the group consisting of an optionally substituted methylene group and an optionally substituted ethylene group.