A white ink composition for ink-based digital printing includes a white pigment. The white pigment is titanium dioxide. A method for ink-based digital printing includes applying dampening fluid to an imaging member to form a dampening fluid layer, patterning the dampening fluid layer using a laser imaging system, applying a white ink composition to the imaging member surface having the patterned dampening fluid disposed thereon to form an ink image, partially curing the ink image, and transferring the partially cured ink image to a printable substrate.

Provided is an inkjet recording ink composition, which has excellent ejection stability and enables the production of a printed material that has excellent water resistance and scratch resistance. Disclosed is an inkjet recording ink composition, which contains a wax emulsion having an average particle diameter of 140 nm or less and containing a polyolefin-based wax with a melting point of 85° C. or more and 120° C. or less, a resin emulsion, a pigment, and an aqueous solvent.

Provided is an inkjet recording ink composition, which has excellent ejection stability and enables the production of a printed material that has excellent water resistance and scratch resistance. Disclosed is an inkjet recording ink composition, which contains a wax emulsion having an average particle diameter of 140 nm or less and containing a polyolefin-based wax with a melting point of 85° C. or more and 120° C. or less, a resin emulsion, a pigment, and an aqueous solvent.

A water-based ink for ink-jet recording includes: a pigment; water; a nonionic surfactant having an ethylene oxide chain; an anionic surfactant having an ethylene oxide chain; and a penetrant having an ethylene oxide chain, wherein the nonionic surfactant, the anionic surfactant, and the penetrant satisfy the following conditions (I) to (III).
−1≦X−Y≦1  condition (I):
−1≦Y−Z≦1  condition (II):
−1≦Z−X≦1  condition (III): X: an average value of the number of ethylene oxide groups in the ethylene oxide chain of the nonionic surfactant Y: an average value of the number of ethylene oxide groups in the ethylene oxide chain of the anionic surfactant Z: an average value of the number of ethylene oxide groups in the ethylene oxide chain of the penetrant.

A water-based ink for ink-jet recording includes: a pigment; water; a nonionic surfactant having an ethylene oxide chain; an anionic surfactant having an ethylene oxide chain; and a penetrant having an ethylene oxide chain, wherein the nonionic surfactant, the anionic surfactant, and the penetrant satisfy the following conditions (I) to (III).
−1≦X−Y≦1  condition (I):
−1≦Y−Z≦1  condition (II):
−1≦Z−X≦1  condition (III): X: an average value of the number of ethylene oxide groups in the ethylene oxide chain of the nonionic surfactant Y: an average value of the number of ethylene oxide groups in the ethylene oxide chain of the anionic surfactant Z: an average value of the number of ethylene oxide groups in the ethylene oxide chain of the penetrant.

Methods and compositions are disclosed for quickly creating durable surface marks and/or decorations on substrates including metal, glass, ceramic, porcelain, natural and engineered stone, as well as plastics, polymer composites and other organic materials with color, high resolution and high contrast using inkjet technology and laser, NIR diode or UV LED energy. The improved methods and compositions are based on established and emerging sub-micron and nanoparticle technology. Most properties of nanoparticles are size dependent and do not become apparent until the particle size has been reduced to the nanometer scale. Examples of such properties include increased specific surface area, facilitating the absorption and/or scattering of visible light and laser, NIR diode or UV LED energy and the decreased melting point of such materials when their particle size is reduced to the nanometer scale. Improved results such as smoothness and durability are obtained by using nanoparticles of silica, pigments and other materials in such marking processes.

Methods and compositions are disclosed for quickly creating durable surface marks and/or decorations on substrates including metal, glass, ceramic, porcelain, natural and engineered stone, as well as plastics, polymer composites and other organic materials with color, high resolution and high contrast using inkjet technology and laser, NIR diode or UV LED energy. The improved methods and compositions are based on established and emerging sub-micron and nanoparticle technology. Most properties of nanoparticles are size dependent and do not become apparent until the particle size has been reduced to the nanometer scale. Examples of such properties include increased specific surface area, facilitating the absorption and/or scattering of visible light and laser, NIR diode or UV LED energy and the decreased melting point of such materials when their particle size is reduced to the nanometer scale. Improved results such as smoothness and durability are obtained by using nanoparticles of silica, pigments and other materials in such marking processes.

An ink set for textile printing is disclosed which includes a pretreatment liquid containing a metal salt, a water-dispersible resin (A), an organic solvent (B) having an SP value of 10 to 14 (cal/cm.sup.3).sup.1/2 and water, and an ink containing a pigment, a water-dispersible resin (C) having a glass transition point of 10° C. or higher, an organic solvent (D) and water. A method for producing a printed textile item is also disclosed.

An ink set for textile printing is disclosed which includes a pretreatment liquid containing a metal salt, a water-dispersible resin (A), an organic solvent (B) having an SP value of 10 to 14 (cal/cm.sup.3).sup.1/2 and water, and an ink containing a pigment, a water-dispersible resin (C) having a glass transition point of 10° C. or higher, an organic solvent (D) and water. A method for producing a printed textile item is also disclosed.

A porous layer included in a transfer body for image recording by a heat transfer method has a multiple layer configuration, and porous layers are provided such that when a thickness (mm) of each porous layer from a porous layer P(1) of the plurality of porous layers on a side closest to the surface layer to a porous layer P(n) on a side closest to the substrate is set to t(n) (n≥2), and a total thickness of the transfer body is set to T (mm), Expression (1): C×T≤t(1)+ . . . +t(n) (here, C=0.4, and T≥1) is satisfied.