The present invention relates to the field oxidative drying inks suitable for offset, letterpress and intaglio printing. In particular, it relates to oxidative drying inks for printing by an offset process, letterpress process or intaglio process on a non-porous substrate selected from the group consisting of polymer materials, composite materials, metals or metalized materials and combinations thereof, said oxidative drying ink comprising at least one oxidative drying varnish and one or more neutral manganese complex compounds.

The present invention is directed to a method for single pass printing on an absorbent non-white substrate. The method comprises: (a) applying a primer composition to one or more selected surfaces of an absorbent non-white substrate to form a primer layer to seal the selected surfaces of the substrate, (b) drying the primer layer, (c) printing a white ink on the primer layer, and (d) drying or curing the white ink. The present invention also relates to low odor radiation curable white ink compositions. The composition comprises 10-40% w/w of 4-hydrobutylacrylate, 0.5-10% of a urethane (meth)acrylate oligomer, 10-55% of diacrylates, one or more photoinitiators, one or more additives, and one or more white pigments. The composition excludes many monofunctional monomers that have distinct odor and are commonly used in an ink jet composition.

An object is to constitute an active energy ray-curable flexographic printing ink composition that uses more biomass-derived components, while still maintaining such basic properties as curability, adhesion, rub resistance, scratch resistance, etc. As a solution, an active energy ray-curable flexographic printing ink composition is provided that contains a plant oil-modified polyfunctional (polyester) oligomer by 20.0 to 70.0% by mass in the ink composition and an acrylamide derivative by 20.0 to 45.0% by mass in the ink composition, and has a viscosity of 300 to 2,000 mPa.Math.s.

An object is to constitute an active energy ray-curable flexographic printing ink composition that uses more biomass-derived components, while still maintaining such basic properties as curability, adhesion, rub resistance, scratch resistance, etc. As a solution, an active energy ray-curable flexographic printing ink composition is provided that contains a plant oil-modified polyfunctional (polyester) oligomer by 20.0 to 70.0% by mass in the ink composition and an acrylamide derivative by 20.0 to 45.0% by mass in the ink composition, and has a viscosity of 300 to 2,000 mPa.Math.s.

Examples provide inkjet ink sets and related methods. An ink set may include a pre-treatment fixing fluid, an ink, and a post-treatment fluid including a wax and a binder present in the post-treatment fluid in a range of about 10 weight percent to about 30 weight percent.

Examples provide inkjet ink sets and related methods. An ink set may include a pre-treatment fixing fluid, an ink, and a post-treatment fluid including a wax and a binder present in the post-treatment fluid in a range of about 10 weight percent to about 30 weight percent.

The present invention discloses an oxidation-resistant conductive copper past, a manufacturing method and a use thereof. The oxidation-resistant conductive copper paste comprises 70 wt % to 90 wt % of copper particles, a binder, a thixotropic agent and a solvent. The manufacturing method comprises the steps of mixing the binder, the thixotropic agent and ethanol thoroughly to obtain a first mixture; mixing the solvent with the first mixture thoroughly to obtain a second mixture; mixing the copper particles with the second mixture to obtain a conductive copper paste precursor; and removing the ethanol from the conductive copper paste precursor to obtain the oxidation-resistant conductive copper paste. The oxidation-resistant conductive copper paste can be used for manufacturing a conductive film of a circuit board or an electrode of a solar battery by a printing process.

A post-printing treatment for printed media includes a wax suspended in water. Particles of the wax to lie upon at least an inkjet ink image on the printed media to facilitate abrasion resistance of the image.

A post-printing treatment for printed media includes a wax suspended in water. Particles of the wax to lie upon at least an inkjet ink image on the printed media to facilitate abrasion resistance of the image.

To provide an image forming set including: an aqueous ink including a colorant, a water-soluble organic solvent, and water; and a post-treatment liquid including a water-soluble organic solvent, water, and at least one of a urethane resin and an acrylic resin, wherein a solubility parameter of a mixed solution of the water-soluble organic solvent and the water in the post-treatment liquid is lower than a solubility parameter of a mixed solution of the water-soluble organic solvent and the water in the aqueous ink by 1.5 (cal/cm.sup.3).sup.1/2 or greater.