A pseudo composite material, may include, inter alia, a first phase and a second phase, wherein each phase may include, inter alia, an organic compound, wherein each phase comprising a multiplicity of construction layers, wherein the layers were deposited by ink-jet printing, wherein the pseudo composite material exhibits non-homogeneous three-dimensional structure. A method is disclosed for the preparation of a pseudo composite material. An apparatus is disclosed for printing a pseudo composite material. Furthermore, there is disclosed a method for printing a three-dimensional object using various suitable materials.

Compositions and methods for use in three dimensional model printing

A phase change ink composition is indirectly applied to a substrate by raising the temperature of the phase change ink composition to form a liquid phase change ink composition, applying droplets of the phase change ink composition in a liquid phase to a liquid intermediate transfer surface on a solid support in a pattern using a device such as an ink jet printhead, solidifying the phase change ink composition on the liquid intermediate transfer surface, transferring the phase change ink composition from the liquid intermediate transfer surface to the substrate, and fixing the phase change ink composition to the substrate. The phase change ink composition is malleable when the ink is transferred from the intermediate transfer surface to the substrate and is ductile after the ink has been transferred to the substrate and cooled to ambient temperature to preclude the ink from crumbling and cracking.

Indirect printing process for applying selective phase change ink compositions to substrates

Disclosed is a phase change ink comprising (a) a colorant and (b) a phase change ink carrier, said carrier comprising (i) a branched triamide and (ii) a polyethylene wax having an average peak molecular weight of from about 350 to about 730 and a polydispersity of from about 1.0001 to about 1.500. Also disclosed is a process which comprises (1) incorporating into an ink jet printing apparatus a phase change ink comprising (a) a colorant and (b) a phase change ink carrier, said carrier comprising (i) a branched triamide and (ii) a polyethylene wax having an average peak molecular weight of from about 350 to about 730 and a polydispersity of from about 1.0001 to about 1.500; (2) melting the ink; and (3) causing droplets of the melted ink to be ejected in an imagewise pattern onto a substrate.

Phase change inks

A phase change ink composition is disclosed wherein the ink composition utilizes polymeric dyes in combination with a selected phase change ink carrier composition.

Use of polymeric dyes in hot melt ink jet inks

Disclosed are hot melt ink compositions suitable for ink jet printing which comprise a colorant, a binder, and a propellant selected from the group consisting of hydrazine; cyclic amines; ureas; carboxylic acids; sulfonic acids; aldehydes; ketones; hydrocarbons; esters; phenols; amides; imides; halocarbons; urethanes; ethers; sulfones; sulfamides; sulfonamides; phosphites; phosphonates; phosphates; alkyl sulfides; alkyl acetates; and sulfur dioxide. Also disclosed are hot melt ink compositions suitable for ink jet printing which comprise a colorant, a propellant, and a binder selected from the group consisting of rosin esters; polyamides; dimer acid amides; fatty acid amides; epoxy resins; fluid paraffin waxes; fluid microcrystalline waxes; Fischer-Tropsch waxes; polyvinyl alcohol resins; polyols; cellulose esters; cellulose ethers; polyvinyl pyridine resins; fatty acids; fatty acid esters; poly sulfonamides; benzoate esters; long chain alcohols; phthalate plasticizers; citrate plasticizers; maleate plasticizers; sulfones; polyvinyl pyrrolidinone copolymers; polyvinyl pyrrolidone/polyvinyl acetate copolymers; novalac resins; natural product waxes; mixtures of linear primary alcohols and linear long chain amides; and mixtures of linear primary alcohols and fatty acid amides. Also disclosed are hot melt ink compositions which comprise a colorant, a propellant and a binder, wherein the binder comprises a liquid crystalline material.

Hot melt ink compositions

A natural wax-containing ink jet ink for use in an ink jet apparatus which features good print quality. The ink jet ink is discharged from the ink jet ink apparatus at elevated temperatures above ambient.

Natural wax-containing ink jet inks

A novel hot melt impulse ink jet ink is disclosed which comprises a C 20 -C 24 acid or alcohol containing vehicle, preferably behenic acid, and a suitable coloring agent. The preferred ink has a melting point above about 65° C., exhibits very good jettability, good heat stability at a reservoir temperature of 90° C., good material compatability, and an improved print quality. The preferred ink comprises about 80% natural behenic acid, 15% of a ketone (such as stearone), 3% coloring agent, and 2% of a plasticizer intended to improve print quality. The subject inks are jetted at relatively high temperatures (80°-90° C.) using impulse ink jet devices. Upon impact with the target substrate the subject inks freeze to produce a high quality print having a smear resistance approximately equal to IBM copy, and cracking resistance better than such copy.

High molecular weight, hot melt impulse ink jet ink

The present invention provides a novel ink jet ink which is semi-solid at room temperature. The subject ink combines the advantageous properties of thermal phase change inks and liquid inks. More particularly, the inks of the present invention comprise vehicles, such as glyceryl esters, polyoxyethylene esters, waxes, fatty acids, and mixtures thereof, which are semi-solid at temperatures between 20° and 45° C. *The ink is impulse jetted at an elevated temperature in the range of above 45° C. to about 110° C., at which temperature the ink has a viscosity of about 10-15 centipose. The subject inks exhibit controlled penetration and spreading, but do not remain on the surface of most substrates where they would be prone to burnishing, cracking or flaking. *These inks further comprise 0.1 to 30 wt. % of a colorant system.

Semi-solid ink jet and method of using same

An ink jet composition and method of applying same is featured providing exceptionally good print quality on a wide range of printing papers. The ink composition includes a mixture of oleic acid in an approximate weight of from 20 to 80 percent of the total mixture and a dye in a dye solvent. The mixture is jetted at a temperature of approximately 135° F. The average dot circularity for a dot jetted upon the paper is approximately 0.7 or better.

Ink jet compositions and method

A novel hot melt ink jet ink is disclosed for use in an impulse ink jet apparatus. The disclosed ink comprises a dispersed solid pigment which is formulated in a wax, or high molecular weight fatty acid or alcohol vehicle to form a hot melt ink which is solid at room temperature. The provision of such a pigment containing ink provides a high quality ink which is stable for long periods of time at relatively high temperatures. In the preferred embodiments, a dispersed graphite in a non-evaporative oil carrier, such as mineral oil, is formulated with candelilla wax, stearic acid and/or behenic acid.

An-Chung R. Lin

Papers

Natural wax-containing ink jet inks

High molecular weight, hot melt impulse ink jet ink

Semi-solid ink jet and method of using same

Ink jet compositions and method

Hot melt impulse ink jet ink with dispersed solid pigment in a hot melt vehicle