A colored resin particle dispersion and an ink are provided which yield excellent abrasion resistance for printed items. Moreover, a colored resin particle dispersion and an inkjet ink are provided which exhibit excellent abrasion resistance, water resistance and marker resistance, as well as favorable storage stability. Specifically provided are a colored resin particle dispersion containing colored resin particles, a basic dispersant, and a non-aqueous solvent, wherein the colored resin particles include a colorant and a crosslinked solid resin, and an inkjet ink containing this colored resin particle dispersion.

An object of the invention is to provide an environmentally-responsive dye-accumulated nanoparticle for grasping an intracellular environment such as pH with respect to each cell. The invention provides an environmentally-responsive dye-accumulated nanoparticle, in which an environmentally-responsive dye is accumulated on the surface of, or inside a thermosetting resin particle, and which has an average particle diameter of 30 to 800 nm, wherein the accumulated amount of the environmentally-responsive dye is 200 to 10,000,000 molecules/particle. The environmentally-responsive dye has dependence on pH, or a Ca ion in terms of fluorescence intensity, and the thermosetting resin is a melamine resin.

An electrophoresis device includes a first substrate and a second substrate that retain an electrophoretic dispersion liquid including charged particles and a dispersion medium, and a partition wall portion that partitions a gap between the first substrate and the second substrate into a plurality of cells, in which the partition wall portion includes a communicating portion that causes the adjacent cells to communicate with each other.

Provided is a functional particle pigment which can suitably be used as a coloring material for thermosensitive recording materials, inks for writing instruments, inks for stamps, inks for ink jet, inks for printing and the like and which is excellent in a chemical resistance without damaging prescribed performances such as a preservability, a light fastness, a coloring property and the like. The functional particle pigment described above includes, for example, a functional particle pigment containing at least a dye, wherein an outside of the pigment is coated with an olefin base resin.

Co-topo-polymeric indicator compositions and methods for making and using the same are provided. Indicator compositions of the invention include a polymer and undergo a color change, which may be reversible or irreversible, in response to an applied stimulus, e.g., temperature. Aspects of methods of producing the compositions include setting a fluid co-topo-polymeric precursor composition into a solid product and then subjecting the solid product (either immediately or after a delay period) to polymerizing conditions to produce the desired indicator composition. Also provided are indicator devices that include the indicator compositions of the invention. The compositions of the invention find use in a variety of different applications.

A particle including a core particle; and a vapor deposited colorant including an organic colored material that encapsulates the core particle. The particle can be a special effect pigment or a thin film interference pigment. Methods of making the particle are also disclosed.

A pigment particle for use in artist color media comprises a silica containing core particle having pore channels formed therein, at least one colorant present in the pore channels in at least part of the silica particle, and a nonporous silica layer coated over the pore channels. A method of manufacturing colored particles for use in artist color media comprises providing a core silica particle having pore channels formed therein, loading at least one colorant into the pore channels of the particle, and depositing a silica layer over the pore channels using fluorosilicic acid. Another method of manufacturing colored particles for use in artist color media comprises providing a porous silica particle having pore channels formed therein, and depositing a silica layer over the pore channels using a fluorosilicic acid where a colorant is present in the fluorosilicic acid.

The present invention relates to nanoparticles for encapsulating compounds, the preparation and uses thereof, said nanoparticles being based on a vegetable hydrophobic protein, particularly zein, and a water miscible non-volatile organic solvent, particularly propylene glycol. Said nanoparticles can encapsulate or incorporate a product of interest for use in the agricultural, cosmetic, food or pharmaceutical fields.

The present invention relates to a modified colorant comprising a colorant having at least one polymer attached or adsorbed thereto. The polymer comprises at least one functional group, and various embodiments of the functional group are disclosed. For each of these embodiments, preferably the functional group has a defined calcium index value. Also disclosed are various uses for these modified colorants, including inkjet ink compositions. Thus, the present invention further relates to an inkjet ink composition comprising a) a liquid vehicle, b) at least one colorant, and c) at least one polymer comprising at least one functional group as described herein.

A colored resin particle dispersion and an ink are provided which exhibit excellent color development and abrasion resistance. Moreover, a colored resin particle dispersion and an inkjet ink are provided which exhibit excellent color development and abrasion resistance, together with excellent water resistance and marker resistance. Specifically provided are a colored resin particle dispersion containing colored resin particles, a basic dispersant, and a non-aqueous solvent, wherein the colored resin particles contain a colorant, and a phosphorylated solid resin and/or a nitrated solid resin. The phosphorylated solid resin may include a phosphorylated polyvinyl alcohol and/or a phosphorylated polyvinyl acetal, and the nitrated solid resin may include a nitrocellulose.