143results about "Reactive dyes" patented technology

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 a preparation process of a composite reactive dye, which comprises the following steps: mixing cyanuric chloride and meta-ester, pulping, carrying out primary condensation, adding 2, 4-diaminobenzene sodium sulfonate, carrying out secondary condensation, and carrying out diazotization to obtain a secondary condensed diazonium solution; the preparation method comprises the following steps: diazotizing p-aminobenzene sulfonic acid at low temperature, carrying out acidic coupling reaction on the diazotized p-aminobenzene sulfonic acid and H acid to obtain an acid coupling solution, adding N-ethyl-3-carbamoyl-4-methyl-6-hydroxy-2-pyridone dry powder, adjusting alkali, and dissolving; and adding a secondary diazonium solution into the dissolved clear solution, and carrying out alkaline coupling reaction to obtain an alkaline coupling solution, namely the composite reactive dye raw stock. According to the preparation process of the composite reactive dye, a compounding and color mixing procedure is omitted, the composite dye is synchronously prepared in a synthesis stage, and the primary pulp has the advantages of good solubility, high solid content, smooth material transmission, low spray drying energy consumption and the like; the product has good fastness, the proportion of yellow and blue can be adjusted in the synthesis stage, the color of the dye can be converted between light green and dark green, and the requirements of the downstream industry for various color matching of the product are met.

The invention relates to the technical field of dyes, and particularly discloses a pyrimidinyl acid ornamental blue reactive dye as well as a preparation method and application thereof. According to the invention, trichloropyrimidine is introduced into the ornamental blue structure as an active group, and the reactivity of the trichloropyrimidine is lower than that of an active group of a cyanuric chloride structure, so that the pyrimidine acid ornamental blue reactive dye is more stable and not easy to hydrolyze after being combined with cellulosic fibers, the acid-resistant and alkali-resistant stability of a dye-fiber covalent bond is better, and the dyeing performance is more excellent; in addition, water-soluble groups such as a sulfonic acid group and a carboxyl group are introduced, so that the water solubility of the pyrimidinic acid blue reactive dye is improved. Moreover, the pyrimidinyl acid ornamental blue reactive dye prepared by the invention has a good dyeing effect on chemical fibers such as acrylic fibers, spandex and the like and blend fiber fabrics thereof, the adaptability of ornamental blue is further improved, the dye is stable in dyeing, deep in coloring and good in color fixing effect, meanwhile, the acid and alkali resistance of the fabrics is improved, and the pyrimidinyl acid ornamental blue reactive dye has a wide application prospect.

The present invention relates to the field of reactive dyes, and relates to a siloxane group-containing reactive dye and a preparation method therefor. The siloxane group-containing reactive dye is a compound having the following general structural formula I. The dye provided by the present invention has a relatively high fixation rate and good fastness properties during dyeing, greatly improving the utilization rate of the dye, reducing the generation of dye wastewater, and well compensating for the problem present in conventional reactive dyes. Such a siloxane group-containing reactive dye has a simple structure and is relatively easy to synthesize, thereby facilitating the application of the dye in industrial production.

The invention discloses a bisazo blue reactive dye for high-temperature dip dyeing as well as a preparation method and application of the bisazo blue reactive dye. The reactive dye is shown in a structural general formula (I). A color body of the reactive dye is of a bisazo structure, the color body contains two naphthalene ring structures and a benzene ring structure, and an active group in a dye molecular structure is quaternary ammonium salt containing a nicotinic acid structure. According to the present invention, the binding force between the dye and the fiber can be improved through the coplanarity of the chromophore molecules, the dissociation between the dye and the fiber at the high temperature can be reduced, and the dye uptake of the dye at the high temperature can be improved, such that the fixation rate between the dye and the fiber can be improved; meanwhile, quaternary ammonium salt containing a nicotinic acid structure can react with fibers under the high-temperature neutral condition, an alkaline agent does not need to be added in the whole dyeing process, the problem of environmental pollution caused by the alkaline agent in the printing and dyeing wastewater is solved, and wide application prospects are achieved.

The invention belongs to the field of reactive dye synthesis, and discloses a preparation process of a reddish brown reactive dye, which comprises the following steps: diazotizing 2-naphthylamine-4, 6, 8-trisulfonic acid, coupling with 1-naphthylamine-7-sulfonic acid to obtain a first-couple material, diazotizing the first-couple material again, coupling with m-toluidine to obtain a second-couple material, refining the second-couple material to obtain a color base, and drying to obtain the reddish brown reactive dye. Carrying out primary condensation on cyanuric chloride and 2, 5-aniline disulfonate to obtain a primary condensation material, carrying out secondary condensation on the primary condensation material and a color base, and filtering the secondary condensation slurry to obtain the reddish brown reactive dye primary stock. The preparation process provided by the invention is stable and low in spray drying energy consumption, and the prepared primary pulp has the advantages of high purity and high solid content, and is excellent in solubility and high in fastness to washing.

Disclosed herein, inter alia, are silicon containing detectable compounds and methods of use thereof. In an aspect is provided a monovalent nucleotide or monovalent nucleoside covalently bound to a monovalent form of a compound described herein (e.g., wherein the R13 moiety of a compound described herein has reacted with a bioconjugate reactive group to form a bioconjugate linker thereby covalently bonding the monovalent compound to the monovalent nucleotide or monovalent nucleoside).

The application discloses a high-fast orange reactive dye and a preparation method thereof, relates to the field of reactive dyes, and comprises a structure general formula as follows: formula 1: formula 2: or formula 3: wherein R1 is halogen; R2 is -H, -SO3M, -CH3, -COOM or -CHO; and M is Na, K or Li. The application has the effects of improving the fixing effect and dyeing performance of the reactive dye.

To provide polymerizable high-energy light absorbing compounds.SOLUTION: Described are polymerizable high-energy light absorbing compounds. The compounds absorb various wavelengths of ultraviolet and / or high energy visible light and are suitable for incorporation in various products, such as biomedical devices and ophthalmic devices, such as a hydrogel contact lens. A monomer has the specified general formula I, where: X is O, S, NR, SO, or S02; Y is a linking group; Pg is a polymerizable group; and EWG is an electron-withdrawing group.SELECTED DRAWING: Figure 9

The application relates to the dye technology field, and particularly discloses a pyrimidine acid observation blue active dye, a preparation method and application thereof. A trichloropyrimidine is introduced as an active group on the basis of the observation blue structure, the reactivity of the trichloropyrimidine is lower than that of the cyanuric chloride structure, the pyrimidine acid observation blue active dye is more stable after being combined with cellulose fibers, is not easy to hydrolyze, the acid and alkali resistance of a 'dye-fiber' covalent bond is better, and the dyeing performance is more superior; in addition, water-soluble groups such as sulfonic acid groups and carboxyl groups are introduced to improve the water solubility of the pyrimidine acid observation blue active dye. Furthermore, the pyrimidine acid observation blue active dye prepared by the application has good dyeing effects on acrylic fibers, spandex and other chemical fiber fabrics and blended fiber fabrics, further improves the adaptability of the observation blue, the dyeing is stable, the color is deep, the fixation effect is good, meanwhile, the acid and alkali resistance of the fabric is improved, and the application prospect is wide.

The application discloses a short-process printing process of polyester-cotton blended fabric, which comprises screen printing by using active disperse dyes containing double active groups and steaming by using alcohol vapor; the double active groups include hydroxyethyl sulfone sulfate group and CH2CH(OH)CH2X (X is Br or Cl); the CH2CH(OH)CH2X can be converted into an epoxy group under alkaline conditions and can react with the alcohol vapor during the steaming process to realize the cross-linking between dye molecules, so that the effects of improving the fixation efficiency and shortening the process flow are achieved, and then the printed fabric with high color depth and high color fastness is obtained.

This invention provides a method for preparing a tri-reactive orange dye, comprising: a primary condensation of cyanuric chloride with 2,4-diaminobenzenesulfonic acid, followed by hydrolysis and diazotization, a primary coupling with 3,5-diaminobenzoic acid, a secondary coupling with p-(β-hydroxyethyl sulfone sulfate)aniline diazonium salt, and a secondary condensation with p-(β-hydroxyethyl sulfone sulfate)aniline to obtain a dye paste. The dye structure is the dye prepared by this invention, which has good solubility, bright color, and can be used as a single-color dye or for blending with black dyes. It has high blackness, good compatibility, and maintains good fixation rate and color fastness while having low raw material cost, good economic efficiency, and high cost performance.

The application relates to the technical field of organic dyes, in particular to a double-active-group cationic modified anthraquinone reactive dye as well as a preparation method and application thereof. The preparation method of the double-active-group cationic modified anthraquinone reactive dye comprises the following steps: S1: dissolving 1-amino-4-sulfonic acid-1'-(N,N-dimethylpropylaminomethyl) anthraquinone in ice water, then adding melamine dropwise to carry out reaction, and obtaining an intermediate solution; S2: the intermediate solution is warmed to 20-25 DEG C, and hydroxyethyl sulfone sulfonate is added to carry out reaction; after the reaction is completed, salting-out is carried out, and the double-active-group cationic modified anthraquinone reactive dye is obtained, as shown in formula (1). The reactive dye is synergized through the cooperation of "double active groups + cationic adjustment + precise water-solubility design", can guarantee water-solubility and dyeing fastness, and can completely get rid of the dependence on a large amount of salt.

Disclosed herein, inter alia, are silicon containing detectable compounds and methods of use thereof.

Ortho-phthaldehyde is introduced as a versatile moiety to imbue ultraviolet-absorbing or visible chromophore compounds bearing this moiety with the capability to remain locally retained in the epidermis for days to weeks by virtue of a safe, efficient, and reagent-free reaction that bonds the ortho-phthalaldehyde moiety covalently to endogenous proteins in the stratum corneum of skin tissue by forming a phthalimidine linkage with primary aliphatic amines such as lysine and N-terminal residues, when applied topically on human or other mammalian skin from a suitable liquid, gel, or emulsion containing the ortho-phthalaldehyde compound with cosmetically acceptable alcohols, oils, and modifiers.

The present invention is related to reactive dyes each of which comprises a dichlorotriazine, chlorotriazine or vinylsulphonyl group and is capable of absorbing HEVL. They are suitable for method for producing colored silicone hydrogel contact lenses each made of a silicone hydrogel material having hydroxyl groups. The present invention is also related to a colored silicone hydrogel contact lens comprising a colored circular region in which a reactive dye is applied and thereby covalently attached.

The present invention relates to the field of isomeric mixture of reactive dyes that are suitable for the dyeing or printing of nitrogen-containing or hydroxy-group-containing fibre materials and yield on such materials dyeings or prints having a good build-up behaviour, a high fixation rate, good washing off properties of the unfixed dyes and good all-round fastness properties, as well as a good stability to various dyeing parameters such as a good bath stability. Furthermore, the present invention relates to a process for dyeing or printing of nitrogen-containing or hydroxy-group-containing fibre materials, wherein the isomeric mixture of reactive dyes according to the invention is used. The isometric mixture of the present invention comprises at least an isomer of formula (Ia) and an isomer of formula (Ib).

The present application belongs to the field of fine chemical industry and textile printing and dyeing, and relates to a reactive dye which can be used for fixing color of dyed polyester fabric by dry heat setting process, a preparation method and dyeing application thereof. The reactive dye provided by the present application has a general structure, and the present application also simultaneously provides the use of the reactive dye, i.e. fixing color of dyed polyester fabric by dry heat setting process. Through ingenious design and application of the carbene type dye, the present application realizes high color fastness effect of dyed polyester fabric, eliminates the adverse factors of high temperature heat setting, and expands the optional range of setting heat setting process (temperature, time).

Sulfonate-containing water-solubilizing peptides are provided. Such water-solubilizing peptides can be attached to, for example, a dye or a tandem dye to increase the solubility thereof. Also provided are methods of using the dyes that include the water-solubilizing peptides, as well as kits that include such dyes.

This invention relates to drug-device core-shell microneedle devices containing anti-diabetes and anti-obesity medications, and transdermal delivery of said medications. The microneedle drug-device system comprises: (a) a two-dimensional array of conical bilayer containing an inner layer with the base diameter ranging from about 100 mm to about 500 mm and the height ranging from about 100 mm about 1200 mm capable of accommodating a known amount of anti-diabetes and / or anti-obesity medications, and a suitable, photostable chromophore or a fluorophore whose absorption and / or emission occurring in the range of 400-900 nm; (b) a larger outer layer that adheres to and encapsulates the inner layer, and protects the inner layer, and (c) a two-dimensional array of cylindrical 'cap layer' that aligns with and adheres to the basal surface of core shell bilayer and seals the bilayer to prevent leakage of said medication(s). The apical (i.e., sharp) ends of the conical bilayer array inserts into the skin and are programmed to allow the said medications to effuse out of the bilayer and into the skin in a controlled fashion and to be monitored by photodetection devices.

The invention belongs to the technical field of reactive dyes, and particularly provides a preparation method of a bright yellow reactive dye. The bright yellow reactive dye prepared by the method disclosed by the invention is a bisazo dye, the fixation rate is relatively high, the color of a dyed fabric is full, sulfonic groups are increased, and the dye solubility is good; the dye is high in solubility and improvement rate, good in leveling property, green and bright in color, good in light fastness and wet rubbing fastness, good in cleaning rate and suitable for dyeing various cellulosic fibers, the fixation rate reaches 65%, the dye belongs to environment-friendly and energy-saving dye, the product is suitable for dyeing various cellulosic fibers, the production process is simple, clean and environmentally friendly, spray drying is adopted after synthesis, the wastewater discharge amount is reduced, and the production cost is reduced. And the national energy conservation and emission reduction policy is met.

Described are contact lenses containing light absorbing chromophores, wherein the light absorbing chromophore is concentrated in one or more select regions of the lens. Also described are methods for making such contact lenses.

The invention discloses a high-performance polyazo reactive dye as well as a preparation method and application thereof. The reactive dye is shown in a structural general formula (I). The reactive dye disclosed by the invention is a polyazo reactive dye which takes 2, 4-diaminobenzene sulfonic acid as a coupling component, has a molecular structure containing two vinyl sulfone sulfate active groups and four azo bonds, and is orange or reddish brown in color. The dye has remarkable symmetry and high molecular coplanarity and is particularly suitable for dyeing cellulose fibers at the high temperature (130 DEG C), dyed fabrics have good color fastness indexes, and the technical problem that existing dye containing vinyl sulfone sulfate active groups can only dye at about 60 DEG C and cannot dye at the high temperature is solved. A foundation is laid for applying the dye containing the vinyl sulfone sulfate active group to the'polyester-cotton one-bath 'process to dye cellulose fibers, and the dye has a wide application prospect.

Described are multifocal contact lenses that contain high energy visible (HEV) light absorbing compounds and their use for improving one or more vision attributes.

Described are polymerizable high energy light absorbing compounds. The compounds absorb various wavelengths of ultraviolet and / or high energy visible light and are suitable for incorporation in various products, such as biomedical devices and ophthalmic devices. Such devices exhibit a number of desirable properties, including providing wearers with favorable optical quality.

The present application relates to the field of textile printing and dyeing, and specifically, to a dark green reactive dye and its preparation method and application. The dark green reactive dye has the following structural formula:. The dark green reactive dye provided in the present application exhibits excellent color stability by virtue of its unique structure, so it can be used as a non-photosensitive dye, and is ideally applied to outdoor or sun-resistant fabrics. It also has excellent color fastness to sunlight, perspiration and chlorine; in addition, the dye can be used as a preferred substitute for blue in the three primary color matching scheme where black is biased towards cyan because of its unique dark green tone, which can not only improve the light fastness of the dyed fabric, but also make the fabric as a whole present a more obvious cyan effect, so that it is more convenient for market customers to adjust the desired target color.

The present invention relates to a silicone-containing reactive dye and a preparation method thereof, belonging to the field of reactive dyes. The silicone-containing reactive dye is a compound having the following structural formula I: The dye provided by the present invention has a high color fixation rate and excellent various fastness properties during the dyeing process, greatly improving dye utilization, reducing the generation of dye liquor wastewater, and effectively compensating for the problems existing in traditional reactive dyes. The silicone-containing reactive dye has a simple structure and is relatively easy to synthesize, which facilitates its application in industrial production.

The invention relates to a high-performance ink-jet printing reactive brown dye as well as a preparation method and application thereof, and belongs to the field of fine chemical engineering. The reactive brown dye as shown in the formula (I) provided by the invention has higher solubility, fixation rate and color fastness, high stability after dyeing and bright colored light, can be widely applied to dip dyeing, pad dyeing and ink-jet printing of cotton, hemp and artificial cotton fiber fabrics, is low in production cost, and can be popularized and applied on a large scale. # imgabs0 #

A dye mixture comprising at least one dye of formula (formula) and at least one dye of formula (formula), wherein R1 is hydrogen or C1-C4alkyl, R2 is hydrogen or C1-C4alkyl, C1-C4alkoxy or sulfo, Q1 is a fibre-reactive radical of formula -(CH2)2-3-SO2-Y2 (3a) or -(CH2)2-3-O-(CH2)2-3-SO2-Y3 (3b), Q2 has the meaning of Q1, or is hydrogen or C1-C4alkyl, X1 and X2 are each independently of the other halogen, 3- carboxypyridin-l-yl or 3-carbamoylpy rid in-1 -yl, Y1, Y2 and Y3 are each independently of the others vinyl or a radical - CH2-CH2-U and U is a group removable under alkaline conditions, Z1 and Z2 are each independently of the other -S02-Y, wherein Y is vinyl or a radical -CH2-CH2-U and U is a group removable under alkaline conditions, M is hydrogen, an alkali metal or one equivalent of an alkaline earth metal, k and n are each independently of the other the number 0, 1 or 2, I and q are each independently of the other the number 0 or 1, m is the number 0 or 1, and wherein the diazo component of the dye of formula (1) and the diazo component of the dye of formula (2) each independently of the other are a benzene radical or a naphthyl radical, are suitable especially for the dyeing or printing of cellulosic fibre materials, exhibit a good build-up, a good fixation rate and good washing off properties of the unfixed dyes, and good all-round fastness properties.

The invention belongs to the fields of fine chemical engineering and textile printing and dyeing, and relates to a reactive dye capable of fixing the color of a dyed polyester fabric by using a dry heat setting process, and a preparation method and dyeing application thereof. The structural general formula of the reactive dye provided by the invention is # imgabs0 #. The invention also provides application of the reactive dye, and the reactive dye is used for fixing the color of a dyed polyester fabric by using a dry heat setting process. Through the ingenious design and application of the carbene type dye, the high color fastness effect of the dyed polyester fabric is achieved, the adverse factors of high-temperature heat setting are eliminated, and the optional range of the heat setting process (temperature and time) is expanded.