An object of the present invention is to provide an inkjet aqueous composition that can sufficiently and easily prevent deterioration or corrosion of a silicon member that forms an ink channel. The present invention relates to an inkjet aqueous composition containing an aqueous medium and a surfactant, in which the surfactant includes a polysiloxane compound having a siloxane structure (—Si—O—) with a repetition number of 5 or more and 1000 or less, and to an inkjet aqueous ink, an inkjet aqueous primer, an inkjet aqueous cleaning liquid, an inkjet aqueous preservation liquid, and an inkjet recording device.

The present disclosure relates to a conductive aqueous ink composition for screen printing, a conductive pattern manufactured using the same, and a conductive device comprising the same, wherein the ink composition is applicable to plastic bases and the like through low-temperature firing and can serve as an aqueous ink to improve a working environment. More specifically, a conductive aqueous ink composition for screen printing, a conductive pattern manufactured using the same, and a conductive device comprising the same are disclosed wherein the ink composition comprises: metal nanoparticles (A) protected by a dispersion stabilizer and having a particle size in the range of 5 to 50 nm; and a water-soluble solvent (B), the dispersion stabilizer containing: a protective polymer composed of branched polyalkylene imine segments and polyoxyalkylene segments; and an amine acid salt composed of an amine and an inorganic acid.

The present disclosure relates to a conductive aqueous ink composition for screen printing, a conductive pattern manufactured using the same, and a conductive device comprising the same, wherein the ink composition is applicable to plastic bases and the like through low-temperature firing and can serve as an aqueous ink to improve a working environment. More specifically, a conductive aqueous ink composition for screen printing, a conductive pattern manufactured using the same, and a conductive device comprising the same are disclosed wherein the ink composition comprises: metal nanoparticles (A) protected by a dispersion stabilizer and having a particle size in the range of 5 to 50 nm; and a water-soluble solvent (B), the dispersion stabilizer containing: a protective polymer composed of branched polyalkylene imine segments and polyoxyalkylene segments; and an amine acid salt composed of an amine and an inorganic acid.

The present invention provides a reversibly thermochromic aqueous inkjet printer ink composition which can form print images of high resolution and rich color development. The composition comprises: a reversibly thermochromic microcapsule pigment, water, and a polyalcohol organic solvent. Microcapsules which are comprised in the composition have a volume-based mean particle size (X) of 0.1 to 2 μm and a mean cross-sectional membrane thickness (Y) of 0.02 to 0.4 which is average of cross-sectional membrane thickness defined by the formula:

cross-sectional membrane thickness=(outer section diameter−inner section diameter)/2.

The present invention provides a reversibly thermochromic aqueous inkjet printer ink composition which can form print images of high resolution and rich color development. The composition comprises: a reversibly thermochromic microcapsule pigment, water, and a polyalcohol organic solvent. Microcapsules which are comprised in the composition have a volume-based mean particle size (X) of 0.1 to 2 μm and a mean cross-sectional membrane thickness (Y) of 0.02 to 0.4 which is average of cross-sectional membrane thickness defined by the formula:

cross-sectional membrane thickness=(outer section diameter−inner section diameter)/2.

A printing formulation, an electronic device comprising a function layer prepared from the printing formulation and a preparation method for obtaining a functional material thin film by utilizing the printing formulation. The printing formulation comprises at least one functional material and at least one inorganic ester solvent, and the inorganic ester solvent can be selected from alkyl borate or alkyl phosphate.

A printing formulation, an electronic device comprising a function layer prepared from the printing formulation and a preparation method for obtaining a functional material thin film by utilizing the printing formulation. The printing formulation comprises at least one functional material and at least one inorganic ester solvent, and the inorganic ester solvent can be selected from alkyl borate or alkyl phosphate.

Hydrogel three-dimensional printing kits, methods of three-dimensional printing and three-dimensional printed hydro-gels are described. In one example, a three-dimensional printing kit can comprise a particulate build material, a crosslinking agent and a structural modifier. The particulate build material may comprise a polyhydroxylated polymer having hydroxyl groups. The crosslinking gent is for crosslinking the polyhydroxylated polymer by a reaction with the hydroxyl groups. The structural modifier can have a plurality of functional groups for forming a network within the hydrogel, and where the structural modifier may have a reactivity that is chemically orthogonal to the reaction with the hydroxyl groups for crosslinking the polyhydroxylated polymer.

Hydrogel three-dimensional printing kits, methods of three-dimensional printing and three-dimensional printed hydro-gels are described. In one example, a three-dimensional printing kit can comprise a particulate build material, a crosslinking agent and a structural modifier. The particulate build material may comprise a polyhydroxylated polymer having hydroxyl groups. The crosslinking gent is for crosslinking the polyhydroxylated polymer by a reaction with the hydroxyl groups. The structural modifier can have a plurality of functional groups for forming a network within the hydrogel, and where the structural modifier may have a reactivity that is chemically orthogonal to the reaction with the hydroxyl groups for crosslinking the polyhydroxylated polymer.

Provided is a VMP aluminum slurry that can satisfy metallic texture achieving high designability and demand characteristics of adhesion level with a base material. It has been found that when a coating material formed using a VMP aluminum slurry containing a specific dicarboxylic acid is made into a coating film, the adhesion with a base material is particularly excellent, and the VMP aluminum slurry of the present invention has been completed. The VMP aluminum slurry contains a dicarboxylic acid having an octanol/water partition coefficient (log Pow) of −1 to 1 and a carbon chain of 2 to 5 carbon atoms between two carboxy groups, a VMP (vacuum metallized pigment) aluminum pigment, and a solvent.