151results about "Anthracene dyes" patented technology

The invention discloses an anthraquinone dye as well as a preparation method and application thereof. The anthraquinone dye disclosed by the invention comprises a compound with a chemical formula as shown in formula (I): # imgabs0 #, wherein W1-W8 are independently selected from H, OH, substituted or unsubstituted C1-C30 alkyl groups or groups containing adamantyl groups; and at least one of W1-W8 is a group containing adamantyl. The anthraquinone dye with high solubility and optical aging resistance is obtained by modifying an anthraquinone main body through adamantane and utilizing high chemical stability and steric hindrance effect of adamantane. The ink prepared from the anthraquinone dye has stability and excellent display effect in electrowetting display, and electrowetting with high light stability is obtained.

This disclosure provides compositions of electrochromic dyes, functionalized electrochromic dyes and dye macromers which may be incorporated into electrochromic devices with tailored optical properties. The disclosure provides an electrochromic dye with an attached functionalization group wherein the said dye colors by at least one of oxidation and reduction and contains at least two moieties wherein a first moiety is electrochromic and a second moiety is an electrochromic moiety, an electron donating moiety, or an electron receiving moiety and wherein the functionalization group. This disclosure also provides EC compositions and devices for controlling color.

The invention discloses an ether chain modified rhodamine fluorescent dye, an ether chain modified rhodamine fluorescent dye probe and a preparation method and application thereof, through modification of an ether chain, the water solubility of the rhodamine dye is improved, the aggregation quenching effect is reduced, meanwhile, the intramolecular torsional charge transfer (TICT) is reduced through the electron withdrawing effect of oxygen atoms, and the fluorescence sensitivity is improved. Finally, the quantum yield of the rhodamine dye is greatly improved. The quantum yield of ether chain modified oxygen rhodamine water is increased from 0.31 to 0.70, and the quantum yield of silicon-based rhodamine water is increased from 0.19 to 0.41. The rhodamine dye disclosed by the invention has the characteristics of high brightness, easiness in functional derivation and the like, and has application prospects in the fields of fluorescent probes, fluorescent labels, super-resolution fluorescence imaging and the like.

The invention relates to the technical field of polymer dye synthesis, and discloses a monomer for a blue polyester fiber and a preparation method thereof.According to the monomer for the blue polyester fiber, 1, 4-arylamino substituted anthraquinone serves as a color development mother nucleus, a benzoate group is introduced to aryl of the 1, 4-arylamino substituted anthraquinone mother nucleus, and the monomer for the blue polyester fiber is obtained; the benzoate group is connected with the chromophoric parent nucleus through a carbon-carbon bond; the molecular terminal of the monomer for the blue polyester fiber is connected with an exposed ester group through an aryl group, and the exposed ester group is used for transesterification with dihydric alcohol under the melt polycondensation condition of polyester. The novel monomer for the blue polyester fiber, provided by the invention, has excellent color development performance and thermal stability, can be directly used for in-situ synthesis of blue polyester and can be directly used for melt spinning, and the color fastness and coloring uniformity of a product are improved; meanwhile, the monomer for the blue polyester fiber, provided by the invention, is simple in preparation method, low in cost and easy for large-scale production.

The present invention includes methods for forming an object in a volume including a photohardenable composition described herein that includes a photohardenable resin component and a photoswitchable photoinitiator comprising a P-type photochromic molecule. The present invention also includes photoswitchable photoinitiators comprising a P-type photochromic molecule, preferably comprising a P-type diarylethene molecule, and photohardenable compositions and methods including such photoswitchable photoinitiators.

To provide a colored resin composition that can form a color filter having excellent heat resistance and light resistance.SOLUTION: This invention relates to a colored resin composition that contains a colorant and an alkali-soluble resin, the colorant containing a terylene compound having 8 or more rings fused together.SELECTED DRAWING: None

To provide an anthraquinone derivative that is usable as a cyan dye and also has superior light resistance.SOLUTION: An anthraquinone derivative is represented by the following formula (1-1). (In the formula, R1, R2, and R3 are an amino group or a hydroxyl group; at least one of Y1 and Y2 is an electron-donating group; in a case where only one of Y1 and Y2 is an electron-donating group, the other of Y1 and Y2 is H, a C1-C10 alkyl group, a C1-C10 alkoxy group, an aryl group, or a cyclohexyl group; Z is H, a C1-C10 alkyl group, a C1-C10 alkoxy group, a cyano group, a nitro group, a halogen atom, an amino group, or an alkylamino group.)SELECTED DRAWING: None

The invention relates to a bio-based anthraquinone acid dye and a preparation method thereof, and belongs to the field of dye chemical industry and textile printing and dyeing. The anthraquinone acid dye containing bio-based amine or bio-based amino acid is simple in preparation method and can be used for dyeing wool fibers. The preparation method specifically comprises the following step: condensing bromamine acid with bio-based amine or bio-based amino acid under the action of a catalyst to obtain the bio-based acid dye. When the acid dye is used for dyeing wool fabrics, relatively high dye-uptake and good leveling property can be obtained, the fastness to washing, the fastness to rubbing, the fastness to light and the like of the fabrics are improved, and each color fastness reaches grade 4 or above. The acid dye disclosed by the invention is simple in preparation method, mild in reaction condition, easily available in raw materials and less in pollution, is a bio-based, green and environment-friendly product, and has dual effects of saving petroleum resources and protecting the environment.

The present invention relates to dyes with pH-dependent absorption and fluorescence for pH detection and their applications in biology, medicine and theranostic. In particular, the present invention relates to compounds of the general formulae (I) - (IV), that show pH dependent absorption and fluorescence spectra as well as pH dependent fluorescence quantum yield, methods for their preparation and their application as pH-sensors and labeling groups for the detection of analytes.

The present invention relates to perylene compounds having the following general formula, a preparation method and uses thereof, wherein each symbol and index are as defined in the specification. The compound can be used as a pigment in the fields of coatings and plastics, and has the characteristics of excellent near-infrared transparency, excellent solvent resistance, excellent acid and alkali resistance and excellent heat resistance.

To provide a dye composition for polylactic acid fibers excellent in dye exhaustion of each of a yellow disperse dye, a red disperse dye, and a blue disperse dye, excellent in reproducibility due to equal dyeing speed during dying of each color, and excellent in light-fastness, a dyed product using the same and a dying method.SOLUTION: The dye composition for polylactic acid fibers of the present invention contains a yellow disperse dye represented by compounds of formula (1) and / or formula (2) (DISPERSE ORANGE 61, DISPERSE ORANGE 155), a red disperse dye represented by compounds of formula (3) (DISPERSE RED 167, DISPERSE RED 167.1), and a blue disperse dye which includes compounds represented by formula (4) (DISPERSE BLUE 79, DISPERSE BLUE 79.1) and / or a mixture of two isomers represented by formula (5) (DISPERSE BLUE 54).SELECTED DRAWING: None

The present invention provides a pigment composition that can improve absorbance across the entire visible light spectrum without increasing absorbance in the ultraviolet region. Furthermore, it provides a colored composition and molded article that achieve high light-shielding properties without interfering with active energy ray curing. [Solution] The pigment composition of the present invention comprises one or more compounds (A) represented by the following general formula (i), and a pigment (B). The pigment composition comprises one or more pigments selected from the group consisting of carbon black, benzodifuranone pigments, and perylene pigments. [C1] TIFF2026095407000040.tif17170

To provide a photoluminescent material having beautiful dark colors under light, while having good luminescent properties.SOLUTION: A photoluminescent material comprises 19.8-54.8% of a polymer matrix, 45-80 wt.% of a photoluminescent compound, 0.2-5 wt.% of a first dye system, and optionally 0-1 wt.% of porous silica, and a second dye system or additives, where the total content of the second dye system and additives is 0-15 wt.%. The first dye system comprises one or more kinds of dyes selected from synthetic black pigments and three-color pigments formed by green, blue and red pigments. The invention further relates to an article coated with the photoluminescent material or made as a whole of the photoluminescent material.SELECTED DRAWING: None

To provide a compound having optical properties suitable for use in color filters, exhibiting high solubility in organic solvents, and having excellent heat resistance.SOLUTION: For example, the invention provides a compound having a terrylene skeleton represented by Formula (I-1).SELECTED DRAWING: None

Disclosed are: a fluorescent compound represented by general formula (I), (I)′, or (I)″, as a fluorescent compound which has high retention in a lipid bilayer, has excellent ease of handling, and can achieve uniform dyeing in a dyeing target; and a lipid bilayer dyeing method and an endocytosis detection method using said compound.Ch is a hydrophobic-field-sensitive fluorescent chromophore in which the fluorescence intensity increases in hydrophobic environments; A-H is an anionic functional group capable of generating anions by deprotonation; Xn+ is a positive ion having biological compatibility; n is 1, 2, or 3; L is a linker that binds to a hydrophobic-field-sensitive fluorescent chromophore and links the fluorescent chromophore and the anionic functional group; and LH+ indicates a state wherein the linker, which contains a cationic functional group capable of generating cations by protonation, has generated a cation by protonation.

The present disclosure relates to O-methyltransferase enzymes. The present disclosure also relates to polypeptides having O-methyltransferase activity, recombinant vectors, host cells, and enzyme preparations thereof. The present disclosure also relates to a process for producing O-methylanthraquinones using O-methyltransferase enzymes as well as their use as pigments and dyes.

To provide a colored composition for color filters that exhibits high contrast ratio due to low aggregation of pigments, fewer film defects in the coating even when stored for a long period under temperature fluctuations, and good pattern characteristic dependence with respect to the time from application to exposure when used as a colored curable composition. To provide a colored curable composition for color filters, a color filter, a solid-state image sensor, and an image display device using the colored composition for color filters. [Solution] A coloring composition for color filters comprising a pigment (A), a dye derivative (B), a resin-type dispersant (C), and an organic solvent (D), wherein the dye derivative (B) comprises a compound having a heterocycle (B1), a compound having a heterocycle (B2), and a compound having a heterocycle (B3), and the mass ratio of compounds (B1) to (B3) satisfies a specific range.

The application discloses a kind of red dyed spandex fiber containing double-hydroxyl red dye and its preparation method, belongs to dye and fiber preparation technical field.The structure formula of double-hydroxyl red dye is.By dissolving double-hydroxyl red dye in solvent C, polyol, isocyanate is added, catalyst or reaction retarder is added or not added to carry out reaction;After reaction, cooling, chain extender is added or not added to the system, end-capping agent is added or not added to stir, stand to defoam, and red polyurethane spandex spinning solution is obtained;Red polyurethane spandex spinning solution is dry spinning again, and red spandex fiber can be obtained.The double-hydroxyl red dye is connected into spandex main chain in the form of covalent bond, the problems such as difficult dyeing of spandex fiber in later period, much wastewater and so on are solved, and the fiber has excellent rubbing fastness and migration resistance.

The present invention includes a method for forming an object within a volume containing a photocurable composition described herein, the photocurable composition including a photocurable resin component and a photoswitchable photoinitiator including a P-type photochromic molecule. The present invention also includes a photoswitchable photoinitiator including a P-type photochromic molecule, preferably including a P-type diarylethene molecule, and a photocurable composition and method including such a photoswitchable photoinitiator.

The present invention relates to compounds of formula (I) wherein R1 is a dye and L1, R2 and R3 are as defined herein. The compounds of the invention reversibly convert from a hydrophobic form to a hydrophilic form upon contact with water and carbon dioxide. The invention also relates to a method for dyeing fibers and a method for decolorizing dyed fibers. The method is particularly suitable for dyeing polyester fibers. (I)

A blue pigment for cosmetic applications is provided, which exhibits excellent color and stability characteristics, while being fully plant-based, edible and of natural origin.

A fluorescent dye, as well as a preparation method and uses thereof, wherein the fluorescent dye is sensitive and specific to viscosity and has low background fluorescence; it can also be used as a fluorescent activated and lighted probe used for fluorescent labeling, quantification or monitoring of protein, enzymes or nucleic acid.

Provided is a novel anthraquinone compound. The anthraquinone compound is represented by formula (1).

The application discloses a blue organic modified dye, a preparation method and application thereof, and belongs to the technical field of dyes and fiber preparation. The structural formula of the blue organic modified dye is. Solvent blue 908 is added into dry tetrahydrofuran, an organic alkali tetrahydrofuran solution and an alkylene oxide tetrahydrofuran solution are added, stirring reaction is carried out, standing is carried out, water is added for filtration, recrystallization is carried out, and the blue organic modified dye is obtained.(a) The blue organic modified dye is dissolved in a solvent A, polyols and isocyanic acid ester are added, a catalyst is added or not, a reaction retarder is added or not, a chain extender is added or not, a blocking agent is added or not, degassing is carried out, filtration is carried out, and a spinning solution is obtained; and(b) the spinning solution is dry spun to form a blue spandex fiber. The dye can solve the problems of difficult late dyeing of the spandex fiber, much wastewater and the like, the dye is combined with the spandex fiber through a chemical bond, and the dye has excellent dry and wet rubbing fastness and excellent migration resistance.

A polymeric colorant of formula (III) wherein: (III) wherein A1 and A2 are, independently of each other, a polyethyleneoxy-, polypropyleneoxy-, or a polyethyleneoxy-Zpolypropyleneoxy-linker; the number of repeating ethyleneoxy- and / or propyleneoxy-units in each of A1 and A2 is less than or equal to 25; or A1 and A2 are, independently of each other, -CH2CH2CH2- M[(CH2CH2O)x-CH2CH2NH-]y; M can be either 0 or N and x = 1 - 5, and if M is O then y = 1, and if M is N then y = 2; and R4 and R5 represent the terminal group of the polyalkyleneoxy chain and are, independently of each other, selected from the group consisting of an amino acid residue, a polyamino acid residue, a peptide residue, a hydroxycarboxylic acid residue, a hydroxypolycarboxylic acid residue or a polycarboxylic acid residue linked with an amino group, an ether group or an ester group to the polyalkyleneoxy chain. Those compounds are non-staining dyes with enhanced biodegradability.

The present invention relates to a colored nylon preparation technology, and disclosed are colored nylon and a preparation method therefor and an application thereof. The colored nylon comprises nylon structure units and chromogenic structure units. The chromogenic structure units comprise dye chromogenic groups. The chromaticity of a supernatant obtained by steaming a mixture of the colored nylon and an organic solvent in a weight ratio of 1:3 does not exceed 10, and the difference in color depth of the colored nylon does not exceed 0.2. The preparation method for the colored nylon comprises: enabling a condensate containing the dye chromogenic groups to be in contact with a nylon monomer for a condensation reaction, so that at least some of the dye chromogenic groups are located between and / or at the ends of the structure units formed from the nylon unit. The colored nylon provided by the present invention has excellent water resistance and organic solvent resistance, high dyeing uniformity and good dyeing stability, low energy consumption and little pollution in the preparation process, and good economic and social benefits.

This composition contains a phthalocyanine pigment, a black pigment, and a resin. The phthalocyanine pigment contains one or more compounds from a compound represented by general formula (Pc) and a dimer of the compound, and the black pigment contains one or more compounds selected from compounds represented by formulae (1)-(6).