A recording liquid contains a luster pigment having a mean number diameter of less than 200 nm and a modified ethylene vinyl acetate polymer or the combination of a polyamide amine salt and an aliphatic acid amide, wherein the recording liquid has a viscosity of 40 mPa.Math.s or less at 20 degrees C.

An electrically conductive screen-printable PTC ink composition with low inrush current and high NTC onset temperature, consisting of at least two different polymers, polymer-1 and polymer-2; wherein the melting temperature difference between polymer-1 and polymer-2 must be greater than 50° C., and the mechanical strength of polymer-1 as expressed by Young's modulus must be greater than 200 MPa.

An electrically conductive screen-printable PTC ink composition with low inrush current and high NTC onset temperature, consisting of at least two different polymers, polymer-1 and polymer-2; wherein the melting temperature difference between polymer-1 and polymer-2 must be greater than 50° C., and the mechanical strength of polymer-1 as expressed by Young's modulus must be greater than 200 MPa.

This invention relates to a white inkjet ink composition having improved compatibility of functional polymer-stabilized titanium dioxide with binder resins, resulting in significantly slowing down the sedimentation rate, resisting clogging nozzles upon jetting, and enhancing the lightness of the ink coating. The white inkjet ink composition comprises a white colorant; one or more binder resins; one or more compatibilizers; an ink solvent; and optionally one or more additives. The white colorant is modified with a functional copolymer comprising an acid group, such as such as styrene-maleic anhydride, to form a modified white colorant. The presence of the one or more compatibilizers significantly improve the compatibility of the modified white colorant, such as styrene-maleic anhydride stabilized titanium dioxide, with the one or more binder resins.

An ink jet printing method includes applying a primer ink composition containing cationic resin particles and water and an ink jet ink composition containing a dispersible anionic pigment, anionic resin particles, and water onto a printing medium such that a value Z defined by the following equation is in the range of 1.0 to 1.3:
Z={(Pa+Sa)×Di}/(Sc×Dp), wherein Sc represents the solid content of the cationic resin particles in the primer ink composition, represented by percentage to the total mass of the primer ink composition, Pa represents the solid content of the dispersible anionic pigment in the ink jet ink composition, represented by percentage to the total mass of the ink jet ink composition, Sa represents the solid content of the anionic resin particles in the ink jet ink composition, represented by percentage to the total mass of the ink jet ink composition, Dp represents the printing duty of the primer ink composition applied onto the printing medium, represented by percentage, and Di represents the printing duty of the ink jet ink composition applied onto the printing medium, represented by percentage.

A flexible inkjet-printed article is prepared by: A′) providing an ink receptive medium having a substrate and an aqueous-based ink-receptive layer. This layer has: (a) a water-soluble salt of a multivalent metal cation; (b) one or both of a polyvinyl alcohol and a polyvinyl amine (or a copolymer derived from a vinyl alcohol and a vinyl amine) at 0.5-30 weight %; and optionally, (c) a crosslinking agent and (d) silica particles. At least one aqueous pigment-based ink is deposited directly on the aqueous-based ink-receptive layer, each having: a) an anionically-stabilized pigment colorant; and b) a water-miscible humectant at 1-20 weight %, each having a carbon to oxygen atom ratio of ≥1.0:1.0 and only two hydroxy groups. After drying, a functional layer with adhesive composition is formed on the inkjet-printed image and a flexible material is laminated to the functional layer, to form a flexible inkjet printed article.

An ink jet recording method according to the present disclosure is a method for recording on a textile including ejecting a white ink composition for ink jet textile printing containing a white pigment and water with an ink jet recording apparatus, wherein the white ink composition is ejected as 9 ng or less of droplets from a nozzle, and the droplets are ejected and recorded on the textile such that a droplet ejected later has a higher flight speed than a droplet ejected earlier and the droplets coalesce before landing on the textile.

An ink jet recording method according to the present disclosure is a method for recording on a textile including ejecting a white ink composition for ink jet textile printing containing a white pigment and water with an ink jet recording apparatus, wherein the white ink composition is ejected as 9 ng or less of droplets from a nozzle, and the droplets are ejected and recorded on the textile such that a droplet ejected later has a higher flight speed than a droplet ejected earlier and the droplets coalesce before landing on the textile.

An ink jet recording method includes a treatment liquid attachment step, in which a treatment liquid containing a flocculant is attached to a recording medium, and an ink attachment step, in which an ink composition containing a pigment and resin particles is attached to the recording medium by ejecting the ink composition from an ink jet head. When the ink composition is mixed in a 1:1 ratio by mass with a 6% by mass aqueous solution of magnesium sulfate heptahydrate, the volume-average diameter of particles in the mixture is from 2000 to 6000 nm.

An ink set to be used for printing poorly absorbent or non-absorbent printing media includes an aqueous non-white ink composition containing a non-white pigment, an aqueous white ink composition containing a white pigment, and a treatment liquid containing a flocculant and an alkanolamine.