386results about "Organic dyes" patented technology

An aqueous ultraviolet-absorbing resin emulsion, and an aqueous resin emulsion composition containing the emulsion is provided, wherein the emulsion is excellent in compatibility with a synthetic resin and light resistance. Also, the emulsion improves stability in blending with an aqueous emulsion of the synthetic resin, and prevents bleed out of the ultraviolet-absorbing resin on the surface of a coating film. Further, the aqueous ultraviolet-absorbing resin emulsion imparts excellent alkali or solvent resistance to a synthetic resin poor in alkali or solvent resistance. More specifically, an aqueous resin emulsion composition comprising (I) an aqueous ultraviolet-absorbing resin emulsion and (II) an other aqueous resin emulsion is provided, wherein the emulsion (I) is obtained by urethanizing (A) a polyol component having an ultraviolet-absorbing group {e.g., 1,1-bis[3-(2H-benzotriazol-2-yl)-4-hydroxy-benzeneethanol]methane}, (B) a polyol if necessary, (C) an alkyl or aryl dialkanolamine compound, and (D) an organic polyisocyanate in (E) an organic solvent, diluting the reaction mixture with (F) an organic solvent having a boiling point lower than 100° C. to give a resin solution, neutralizing the resin solution with (G) a neutralizing agent, and dispersing the resultant in water.

An “inverse” precipitation route to precipitate aqueous soluble species with copolymers as nanoparticles having a hydrophilic, polar core and a less polar shell is described.

To provide an optical filter having high permeability of visible light and high shieldability of near infrared light and ultraviolet light, specifically with high permeability of blue light, while suppressing a deterioration in shieldability of ultraviolet light at a high incident angle.SOLUTION: An optical filter includes: a substrate satisfying prescribed spectral characteristics; and a dielectric multilayer laminated at least on one principal side of the substrate. The substrate includes a resin film including: a pigment (U) having a maximum absorption wavelength at 360-395 nm in dichloromethane; a pigment (A) having a maximum absorption wavelength at 600-800 nm in dichloromethane; and a resin.SELECTED DRAWING: Figure 1

The invention relates to the technical field of dimming films, in particular to a black dichroic dye composition, a PDLC (Polymer Dispersed Liquid Crystal) dimming film as well as a preparation method and application of the PDLC dimming film. Comprising a compound of formula D1, a compound of formula D2 and a compound of formula D3; formula D1; formula D2; formula D3; the black dichroic dye composition is a total anthraquinone black dye composition, the value a of the prepared dimming film is-5-5 and the value b of the prepared dimming film is-5-5 at 0V, and Eab is smaller than or equal to 2 at 0V and 48V, and compared with azo dichroic dye, the black dichroic dye composition has better heat insulation and sun protection performance and meets the use requirements in automobile panoramic skyscreens, skylight dimming glass and building glass.

The invention provides a reactive dye with a high fixation rate and a preparation method thereof. The reactive dye is prepared from the following raw materials in parts by mass: 25 parts of modified reactive dye, 0.3-0.7 part of a metal ion agent and 60-80 parts of water, wherein the modified reactive dye is obtained by inclusion of reactive dye molecules with beta-cyclodextrin-pyridine carboxylic acid, and beta-cyclodextrin and pyridine carboxylic acid in the beta-cyclodextrin-pyridine carboxylic acid are connected through an alkyl chain; metal ions provided by the metal ion agent can be chelated with the picolinic acid. Reactive dye molecules and beta-cyclodextrin-pyridine carboxylic acid form an inclusion structure, the hydrolysis probability of active groups is reduced, and an alkyl chain regulates steric hindrance and molecular spacing, so that pyridine nitrogen and carboxylic acid more efficiently form a more stable chelate with metal ions and further form coordinate bonds with hydroxyl groups on the fiber surface, and the fixation rate of the reactive dye is improved.

A method of preparing a microcapsule composition include the steps of: (a) providing a microcapsule formed of an encapsulating polymer having a primary or secondary amine group, (b) providing a deposition agent having a reactive group, and (c) forming a covalent bond between the primary or secondary amine group and the reactive group to graft the deposition agent to the encapsulating polymer. Also disclosed are consumer products containing these microcapsules.

The invention relates to a method for preparing a saturated luminescent composition or a saturated and colored luminescent composition. The method comprises a saturation step 100 of a luminescent pigment with a saturation composition adapted to penetrate the microcavities of the luminescent pigment. The saturation step 100 comprises a mixing substep 110 and a holding substep 120, the saturation step yielding a saturated luminescent pigment. The method then comprises a mixing step 200 of the saturated luminescent pigment with a carrier composition to obtain a saturated luminescent composition.

A wet-state indicator composition is provided, which is excellent in color change performance and in which odor is suppressed. Disclosed is a wet-state indicator composition comprising: a hydrocarbon oil (A); at least one selected from saturated fatty acids having 16 or more carbon atoms and derivatives of the saturated fatty acids (B); and a moisture-sensitive colorant composition (C), wherein component (B) is contained in an amount of 2 to 85 parts by mass based on 100 parts by mass of the total amount of components (A) to (C).

The invention belongs to the field of pigment color paste, and particularly relates to a modified coloring agent with a triazine structure and application of the modified coloring agent. The structure of the modified colorant is shown as a general formula D1, and the anchoring group L anchors the modified colorant on the surfaces of pigment particles in a physical adsorption or chemical bond form to realize surface modification of the pigment. According to the modifier colorant, the hydrophilicity or lipophilicity of the pigment can be effectively regulated and controlled by adjusting the variety and number of triazine substituent groups, the nano pigment paste treated by the modifier has self-dispersing performance, other auxiliaries do not need to be added, the dispersity, stability and filterability of the nano pigment paste can be effectively improved, and the nano pigment paste can be used for preparing the nano pigment paste. And the coating has excellent coloring ability.

The presently claimed invention relates to polyalkyleneimine-based polymers that are useful as dispersants and a process for the preparation thereof. The presently claimed invention is also directed to dispersants that are useful in solvent-based dispersion systems as well as in water-based dispersion systems.

The application belongs to the technical field of display materials, and relates to a modified yellow pigment and a preparation method and application thereof. The modified yellow pigment comprises a yellow pigment, an acrylic resin and a pigment yellow 74 derivative. The yellow pigment is C.I. Pigment Yellow 138. The acrylic resin has a molecular weight of 9000, an acid value of 125 and a solid content of 30%. The pigment yellow 74 derivative is provided. The modified yellow pigment is prepared by adding the acrylic resin and the pigment yellow 74 derivative in kneading, so that the brightness and contrast of the pigment after film formation are improved. The pigment yellow 74 derivative is a solid, and the addition of the salt in the kneading increases the shearing friction, which is beneficial to the kneading modification of the yellow pigment. In the post-treatment, an iron removal process is added. The iron is removed by an iron remover for the first time, and HCl and EDTA disodium salt are further added. The hydrochloric acid is used to convert the metal into metal ions, and then the EDTA disodium salt is added to form a stable water-soluble complex, so that the metal content in the pigment is reduced to the minimum.

The invention relates to the technical field of papermaking dye performance testing, and discloses a high-stability papermaking dye and a performance testing method thereof. The method comprises the following steps: collecting dye sample data and assistant influence parameters, and constructing an initial environment variable set; determining a dye dispersion state category by adopting a machine learning clustering algorithm; if the state is aggregation abnormity, migration track data are obtained, and a dynamic process change rule is obtained through analysis; obtaining fiber attachment distribution information based on the rule, analyzing the relevance between the fiber attachment distribution information and auxiliary parameters by using a support vector machine model, and determining migration path optimization points; extracting real-time monitoring indexes from the optimization points, and integrating environmental variable influences by adopting an information fusion technology to obtain a stability quantized value; and if the quantized value is lower than the threshold value, adjusting environment simulation parameters, evaluating the improvement degree, updating the dynamic process model, and generating a real-time monitoring scheme. According to the invention, quantitative tracking and regulation of dye dispersion and migration stability are realized, and the uniformity and stability of the dyeing process are obviously improved.

According to the pigment red 254 kneading inducer and the application thereof, the aromatic amide lactam compound is used as the pigment red 254 kneading inducer, so that the content of an alpha crystal form of the pigment red 254 kneading inducer can be effectively increased, the alpha crystal form is stabilized, and the pigment red 254 kneading inducer has the advantages that the pigment dispersity and resin compatibility are improved, and grain growth and reaggregation are inhibited; the pigment red 254 overcomes many defects of pigment red 254 in the prior art, and has a remarkable application prospect.

The invention provides a yellow dye composition and a dyeing process. The yellow dye composition comprises a dye A, a dye B, a dye C and an auxiliary agent, wherein the weight ratio of the dye A to the dye B to the dye C to the auxiliary agent is (30-50): (25-40): (0-10): (30-40). Wherein the dye A is the most important component, and a large pi conjugated system is formed by an azo bond, a pyrazole ring and two benzene rings.

The application discloses a triphenylmethane polyether dye and a preparation method thereof, and the preparation method comprises the following steps: (1) adding an organic catalyst and an oxidant into a triphenylmethane polyether dye leucoaqueous solution in the interval of 40-60 DEG C, adding an acid-binding agent to maintain a proper pH, and completing oxidation; the organic catalyst is a ferrocene-rotene iron compound; (2) adjusting the pH with an acid-binding agent aqueous solution, removing the organic catalyst by hot filtration, removing water through vacuum distillation of the filtrate, and performing pressure filtration to obtain the triphenylmethane polyether dye. The improved rotene iron catalyst is used in the application, the catalytic effect is obviously improved, the reaction temperature and activation energy are reduced, the defects of excessive hydrogen peroxide oxidation are overcome, and the obtained product meets the EN71-3 standard.

The present invention provides a polymeric dispersant that is to be blended in an aqueous pigment dispersion in which a pigment is finely dispersed in a stable manner and at a high level, the aqueous pigment dispersion enabling preparation of an aqueous inkjet ink capable of recording an image excellent in adhesiveness and durability on plastic media and textiles. The polymeric dispersant is a polymer that includes a constituent unit (i) derived from styrene, a constituent unit (ii) derived from methyl methacrylate and / or the like, a constituent unit (iii) derived from 2-ethylhexyl methacrylate and / or the like, a constituent unit (iv) derived from 2-hydroxyethyl methacrylate and / or the like, and a constituent unit (v) derived from methacrylic acid, and at least part of carboxy groups is neutralized with an alkali.

A UV / HEVL filterable SiHy contact lens is described herein that not only has a relatively high UV / HEVL filterability but also has an aesthetically attractive color. Bulk siloxane hydrogels for UV / HEVL filterable SiHy contact lenses comprise repeating units of (1) at least one hydrophilic ethylene monomer, (2) at least one siloxane-containing ethylene monomer and / or at least one polysiloxane ethylene crosslinking agent, (3) at least one UV-absorbing ethylene monomer, (4) at least one crosslinking agent, and (5) at least one crosslinking agent. And (4) at least one polymerizable HEVL-absorbing compound capable of absorbing HEVL between 380 nm and 450 nm, and further comprising at least one blue colorant and at least one optical brightener distributed in the bulk siloxane hydrogel.

The present invention relates to microparticles loaded with near-infrared fluorescent dyes and their preparations, and more specifically, to microparticles loaded with near-infrared fluorescent dyes that can be injected into a lesion such as cancer to accurately identify the location of the lesion from a fluorescent image during surgery, thereby enabling precision surgery. The near-infrared fluorescent dye-loaded microparticles according to the present invention, when injected into a lesion such as cancer, can accurately determine the location of the lesion from a fluorescent image in real time, dramatically improving the accuracy of surgery for resecting the lesion and significantly shortening the time required for surgery. By forming a complex between a near-infrared fluorescent dye and human serum albumin or a near-infrared fluorescent dye and cyclodextrin and loading it into the microparticles, or by mixing the near-infrared fluorescent dye into a hydrogel polymer and loading it, the intensity of the fluorescence generated by the microparticles is stronger than when the microparticles are manufactured using only the near-infrared fluorescent dye, and the stability of the fluorescent dye in the microparticles is improved, making it possible to confirm the labeled site with a fluorescent image for a long period of time.

The present invention provides a curable composition containing: a colorant containing a pigment; a polymerizable compound; a photopolymerization initiator; and a compound represented by formula (1). Also provided are a film, an optical filter, a solid-state imaging element, and an image display device using the curable composition.

The present invention relates to effect pigments and multilayer films comprising two or more alternating biodegradable polymer layers with different refractive indices, methods for their preparation, and their use, especially in cosmetics, rinse-off products, packaging materials, decorative films, paints, printing inks, and plastic products.

The application discloses a kind of flame-retardant type benzidine yellow pigments for ink and a preparation method thereof, and belongs to the technical field of pigment preparation, by weight parts, including 1 portion of hyperbranched flame-retardant polymer and 50~100 portions of benzidine yellow;The hyperbranched flame-retardant polymer is a kind of hyperbranched structure macromolecule with fluorine-containing long-chain unit as skeleton, which is gradually grafted to construct, the flame-retardant type benzidine yellow pigment for ink prepared by the application has higher tinting strength, light resistance, flame retardancy and dispersibility, and can effectively inhibit the oxidation of pigment during use Fading, prolong the service life of pigment, and increase its stability.

There is provided a polymerizable composition for an optical article, including the following component A, component B and component C: component A: multifunctional (meth)acrylate containing a polyalkylene glycol moiety and having a molecular weight of 500 or more, component B: monofunctional (meth)acrylate represented by the following Formula 1, and component C: photochromic compound (in Formula 1, R10 represents a hydrogen atom or a methyl group, and R11 represents a linear alkyl group having 3 or more carbon atoms or a branched alkyl group having 3 or more carbon atoms).

A polarizing element which has a base material that contains an azo compound represented by formula (1) or a salt thereof in the form of a free acid. (In the formula, each of Ay1 and Ay2 independently represents an optionally substituted naphthyl group or an optionally substituted phenyl group; each of m and n independently represents 0 or 1; and each of Ry1 to Ry10 independently represents a hydrogen atom or a substituent.)

This invention relates to a manufacturing technology for colored nylon, and more particularly to colored nylon, its manufacturing method, and its use. The colored nylon of this invention contains nylon structural units and color-developing structural units, the color-developing structural units contain dye color-developing groups, the chromaticity of the supernatant liquid obtained by mixing the colored nylon and an organic solvent in a weight ratio of 1:3 and steaming is 10 or less, and the difference in color intensity of the colored nylon is 0.2 or less. The manufacturing method of the colored nylon of this invention includes the step of bringing a condensate containing dye color-developing groups into contact with a nylon monomer to carry out a condensation reaction so that at least a portion of the dye color-developing groups are located between and / or at the ends of structural units formed by nylon units. The colored nylon according to this invention has excellent water resistance and organic solvent resistance, high dye uniformity, excellent dye stability, and furthermore, its manufacturing process consumes little energy, produces little pollution, and offers great economic and social benefits.

The present application provides a renewable modified natural oil exhibiting improved physical properties comprising the reaction product of: (A) a maleated natural oil comprising a natural oil having maleated functionality, (B) a lactam moiety having at least one hydroxyl, thiol, or amine functionality, and (C) a base; and compositions comprising reaction products thereof. The present application also relates to the reaction product of: (A) a maleated natural oil comprising a natural oil having maleated functionality, and (B) a lactam moiety having at least one amine functionality; and compositions comprising reaction products thereof. The present application further relates to the reaction product of: (A) a maleated natural oil comprising a natural oil having maleated functionality, (B) a lactam moiety having at least one hydroxyl, thiol, or amine functionality, (C) a functionalized or unfunctionalized moiety selected from the group consisting of a hydrophobic moiety, a hydrophilic moiety, and combinations thereof, wherein the maleated functionality has been partially reacted with the functionalized or unfunctionalized moiety, and, (D) optionally, a base; and compositions comprising reaction products thereof.

The present invention provides a reversible thermochromic composition which exhibits black color upon coloration and colorless color upon discoloration, and has excellent light resistance, by using a fluoran derivative having a specific structure as an electron-donating chromogenic organic compound, and a reversible thermochromic microcapsule pigment containing the reversible thermochromic composition. The means for solving the problem is a reversible thermochromic composition comprising: (a) a fluoran derivative having a specific structure as an electron-donating chromogenic organic compound, (b) a compound having a specific structure as an electron-accepting compound, and (c) a reaction medium which allows the electron transfer reaction between the (a) component and the (b) component to occur reversibly in a specific temperature range, and a reversible thermochromic microcapsule pigment containing the reversible thermochromic composition.

The invention relates to a flame-retardant indigo blue composite dye and a preparation method thereof, and belongs to the technical field of dyes. According to the indigo blue composite dye and the preparation method thereof, the synergist is prepared, the synergist and indigo blue are subjected to ball milling and blending to obtain the indigo blue composite dye, phosphite ester groups and benzotriazole in the synergist can synergistically form a firm heat-insulation flame-retardant barrier, the indigo blue dye is endowed with good flame retardance, and a dyed fabric better meets the fireproof safety requirement; the benzotriazole can also enhance the ultraviolet absorption performance of the dyed fabric, and the phosphite group can also have a triangular pyramid-shaped space structure, so that the synergist is integrally of a three-dimensional structure, pi-pi accumulation among indigo molecules is effectively prevented, and the indigo has good dispersion stability; quaternary ammonium salt cations in the synergist enable the dyed fabric to achieve the antistatic effect, and meanwhile, the quaternary ammonium salt cations and indigo blue in the dyeing process can be mutually attracted through electrostatic attraction, so that the color fixing effect is achieved.

An electrophotographic photosensitive element is provided, comprising: a support; and a photosensitive layer, wherein the photosensitive layer contains a hydroxygallium phthalocyanine crystal and wherein the hydroxygallium phthalocyanine crystal contains a compound A having a dipole moment size of 3.6 D or more and an SP value SP A of 11.5 (cal / cm²) 3 ) 1 / 2 or more, and a compound B that has a dipole moment magnitude greater than 0 to 2.0 D and an SP value SP B of 9.5 (cal / cm²) 3 ) 1 / 2 or less.

The invention relates to a colorant composition for coloring fibers and fabrics comprising leucoindigo and at least one organic solvent. To achieve a stable composition, which is broadly applicable to different fibers and fabrics, the water content of the composition is less or equal to 10 wt.-% of the total weight of the composition or the water content of the composition is less or equal to 60 wt.-% of the total weight of the composition and the composition also includes a base.