Provided herein are chlorophyll polymers and conductive materials, sensors, and devices comprising the chlorophyll polymers, and methods of use and preparation thereof.

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.

Problem to be Solved

It is intended to provide a yellow colorant composition having improved chroma and lightness, a pigment composition therefor, and use thereof for forming images.

Solution

The present invention provides a colorant composition containing a yellow pigment, a yellow fluorescent dye, and a resin binder, wherein the maximum reflectance wavelength in the visible reflection spectrum of a coating film consisting of the fluorescent dye and the resin binder without comprising the yellow pigment falls within the range of 490 to 535 nm, and the maximum reflectance of the coating film is 90 to 140%.

A pigment particle template and a method of fabricating the same, and a method of fabricating a pigment dispersion liquid are described. The method of fabricating the pigment particle template has steps of: providing a substrate; forming a covalent organic framework layer on the substrate, wherein the covalent organic framework layer has porous network structure; forming a first porous organic layer on the covalent organic framework layer; and replacing the substrate with a second porous organic layer. The present application is beneficial to production of nanoparticles with controllable particle size and uniform size by utilizing a controllable size of the covalent organic framework structure and a stability of a sandwich structure.

The purpose of the present invention is to provide a thermal transfer sheet which can prevent a kick and a scumming, and can form a photographic tone color image of high quality with a continuous tone image by sublimation transfer, while expanding the range of choices for colorants to be included in a colorant layer; a coating liquid for colorant layer to be used for forming the colorant layer of this thermal transfer sheet; a method for manufacturing this thermal transfer sheet; and image forming method employing this thermal transfer sheet. The problem is solved by a thermal transfer sheet (1) in which at least a colorant layer (3) is layered on a substrate sheet (2), wherein the colorant layer (3) contains a predetermined solvent, a colorant (10x) dispersible in the predetermined solvent, a dispersant, and a binder resin, and the dispersant being one or more selected from the group consisting of polyether-based dispersants, graft type polymer dispersants, acryl-based block type polymer dispersants, urethane-based polymer dispersants and azo-based dispersants.

A colored resin particle dispersion and an ink are provided which exhibit excellent abrasion resistance of the printed items and excellent storage stability of the dispersion. Specifically provided is a colored resin particle dispersion comprising colored resin particles containing a colorant and a solid resin, a basic dispersant, and a non-aqueous solvent, wherein the solid resin is a resin having alkoxy groups and/or a polysilsesquioxane. The resin having alkoxy groups preferably has methoxy groups and/or ethoxy groups. Further, the resin having alkoxy groups preferably contains at least one of a polyamide resin having methoxymethyl groups, a methoxypolysilsesquioxane and an ethoxypolysilsesquioxane.

The present invention relates to an ophthalmic lens which efficiently absorbs light rays comprising a composition derived from a monomer or oligomer, a catalyst, at least one light-absorbing additive contained in nanoparticles which are dispersed in said monomer or oligomer.

The present invention relates to microparticle compositions comprising an organic IR absorbing pigment having a main absorption maximum in the range from 750 to 1100 nm. The invention also relates to a process for producing said microparticle compositions and to their use in a printing ink, in particular in a printing ink, which is suitable for producing a security feature or a security document. The microparticles of the pigment composition contain the organic IR absorbing pigment as solid particles, which are surrounded by or embedded in an aminoplast polymer, which is a polycondensation product of one or more amino compounds and one or more aldehydes. The microparticle based pigment composition is characterized by a volume based particle size distribution, as determined by static light scattering according to ISO 13320:2009 EN, having a D(4,3) value in the range from 1.0 to 15.0 μm.

A core-shell compound, a photosensitive resin composition including the same, a photosensitive resin layer manufactured using the photosensitive resin composition, a color filter including the photosensitive resin layer, and a CMOS image sensor including the color filter, the core-shell compound including a squarylium core including three or more (meth)acrylate groups and a shell surrounding the squarylium core.

An object of the present invention is to provide a method of efficiently producing a colorant that can be used for production of a pigment composition or an aqueous pigment dispersion with a small volume-average particle size of a dispersed substance and with fewer coarse particles. The inventor of the present invention has achieved the object by a method of producing a colorant that includes: step 1 of kneading a composition containing a pigment having a primary particle size of 100 nm or more, a liquid medium, and a water-soluble inorganic salt with a processing machine to produce a kneaded product containing a pigment having a primary particle size in a range of 10 nm or more and less than 100 nm; and step 2-1 of mixing the kneaded product, a resin having an anionic group, and a basic compound.