The present invention relates to a method of manufacturing non-sintered liquid metal ink, and more particularly, to a method of manufacturing liquid metal ink manufactured without a sintering process. The method of manufacturing liquid metal ink according to an embodiment of the present invention includes: (a) inputting a solvent into liquid metal in a container at room temperature; (b) performing oxide film-removing treatment on the liquid metal of step (a); and (c) dispersing the liquid metal that has undergone step (b) in a form of nanoparticles through ultrasonic treatment.

The present invention relates to a method of manufacturing non-sintered liquid metal ink, and more particularly, to a method of manufacturing liquid metal ink manufactured without a sintering process. The method of manufacturing liquid metal ink according to an embodiment of the present invention includes: (a) inputting a solvent into liquid metal in a container at room temperature; (b) performing oxide film-removing treatment on the liquid metal of step (a); and (c) dispersing the liquid metal that has undergone step (b) in a form of nanoparticles through ultrasonic treatment.

An aqueous ink for ink jet recording contains a titanium oxide particle containing titanium oxide, at least part of the surface of the titanium oxide being covered with alumina and silica in specific proportions, and a compound serving as a dispersant for the titanium oxide particle, the compound being represented by the following general formula (1):

##STR00001##

where in general formula (1), R.sub.1, R.sub.2 and R.sub.3 are each independently a hydrogen atom or an alkyl group having 1 to 4 carbon atoms, each R.sub.4 is independently an alkylene group having 2 to 4 carbon atoms, X is a single bond or an alkylene group having 1 to 6 carbon atoms, n is 6 to 24, a is 1 to 3, b is 0 to 2 and a + b = 3.

An aqueous ink for ink jet recording contains a titanium oxide particle containing titanium oxide, at least part of the surface of the titanium oxide being covered with alumina and silica in specific proportions, and a compound serving as a dispersant for the titanium oxide particle, the compound being represented by the following general formula (1):

##STR00001##

where in general formula (1), R.sub.1, R.sub.2 and R.sub.3 are each independently a hydrogen atom or an alkyl group having 1 to 4 carbon atoms, each R.sub.4 is independently an alkylene group having 2 to 4 carbon atoms, X is a single bond or an alkylene group having 1 to 6 carbon atoms, n is 6 to 24, a is 1 to 3, b is 0 to 2 and a + b = 3.

A method of printing with coffee-based ink comprises providing a thermal ink-jet cartridge having a quantity of a coffee-based ink disposed within; receiving optical density data from a user via a touch-screen computerized interface, where the data describes an optical density of the coffee-based ink present within an ink-jet pod; and computing a customized droplet-size for the coffee-based ink in its current state within the thermal ink-jet cartridge. A suitable printing apparatus can include coffee-based ink in a cartridge, an image-processing system, an image processing module for determining, inter alia, droplet size and missing/defective nozzles, and a nozzle-compensation module. Suitable ink formulations are human-edible and aqueous.

A method of printing with coffee-based ink comprises providing a thermal ink-jet cartridge having a quantity of a coffee-based ink disposed within; receiving optical density data from a user via a touch-screen computerized interface, where the data describes an optical density of the coffee-based ink present within an ink-jet pod; and computing a customized droplet-size for the coffee-based ink in its current state within the thermal ink-jet cartridge. A suitable printing apparatus can include coffee-based ink in a cartridge, an image-processing system, an image processing module for determining, inter alia, droplet size and missing/defective nozzles, and a nozzle-compensation module. Suitable ink formulations are human-edible and aqueous.

A photochromic composition having at least one photochromic naphthopyran-based component with R′ and R″ groups selected from hydrogen, alkyl, fluorinated alkyl, alkenyl, alkynyl, alkylaryl, cycloalkyl, alkoxy, halogen, amine, carbonate ester, carboxylate, aryl, substituted aryl, heteroaryl, substituted heteroaryl or a heterocyclic group and Ar′ and Ar″ groups selected from unsubstituted or substituted cyclic five-membered or six-membered structures including benzene, pyridine, thiophene, furan, carbazole, triphenylamine, dibenzothiophene, dibenzofuran, fluorine, naphthalene, anthracene and pyrene. The photochromic composition is excitable under a visible light range to produce a color change. A second photochromic naphthopyran-based component with a different thermal decay rate constant (k) may further be included in the photochromic composition. The photochromic composition is incorporated into color-changing inks and polymers.

A photochromic composition having at least one photochromic naphthopyran-based component with R′ and R″ groups selected from hydrogen, alkyl, fluorinated alkyl, alkenyl, alkynyl, alkylaryl, cycloalkyl, alkoxy, halogen, amine, carbonate ester, carboxylate, aryl, substituted aryl, heteroaryl, substituted heteroaryl or a heterocyclic group and Ar′ and Ar″ groups selected from unsubstituted or substituted cyclic five-membered or six-membered structures including benzene, pyridine, thiophene, furan, carbazole, triphenylamine, dibenzothiophene, dibenzofuran, fluorine, naphthalene, anthracene and pyrene. The photochromic composition is excitable under a visible light range to produce a color change. A second photochromic naphthopyran-based component with a different thermal decay rate constant (k) may further be included in the photochromic composition. The photochromic composition is incorporated into color-changing inks and polymers.

Ink formulations comprising bioactive particles, methods of printing the inks into three-dimensional (3D) structures, and methods of making the inks are provided. Also provided are objects, such as tissue growth scaffolds and artificial bone, made from the inks, methods of forming the objects using 3D printing techniques, and method for growing tissue on the tissue growth scaffolds. The inks comprise a plurality of bioactive ceramic particles, a biocompatible polymer binder, optionally at least one bioactive factor, and a solvent.

Ink formulations comprising bioactive particles, methods of printing the inks into three-dimensional (3D) structures, and methods of making the inks are provided. Also provided are objects, such as tissue growth scaffolds and artificial bone, made from the inks, methods of forming the objects using 3D printing techniques, and method for growing tissue on the tissue growth scaffolds. The inks comprise a plurality of bioactive ceramic particles, a biocompatible polymer binder, optionally at least one bioactive factor, and a solvent.