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95 results about "Dye uptake" patented technology

Environment-friendly dye for papermaking and preparation method thereof

The invention belongs to the technical field of papermaking dyes, and particularly relates to an environment-friendly dye for papermaking and a preparation method thereof. According to the invention, the sulfonate surfactant is prepared by a two-step method, and the sulfonate surfactant has excellent dispersibility, stability and emulsibility, and has good compatibility with alkaline auramine O; the sulfonate surfactant is compounded with the alkaline bright yellow O for use, so that the solubility, dispersion stability and high-temperature stability of the alkaline bright yellow O dye can be remarkably improved in manners of reducing interfacial tension, increasing wettability, improving permeation and the like. When the prepared environment-friendly dye is used for dyeing paper, the dye-uptake and the color fastness to light of the dye can be obviously improved, the dyeing uniformity and effect are improved, the dye waste is effectively reduced, and the requirement of green development is met.
Owner:HENAN JINGXIN BIOTECHNOLOGY CO LTD

Low-temperature one-bath dyeing process for cotton-polyester blended fabric

The invention discloses a low-temperature one-bath dyeing process for a cotton-polyester blended fabric, which comprises the following steps: soaking the cotton-polyester blended fabric in an aqueous solution of a basic ionic liquid for pretreatment to obtain a pretreated fabric with liquid; mixing the pretreated fabric with the liquid with a reactive dye and a disperse dye, and then carrying out supercritical CO2 fluid dyeing to obtain a dyed fabric; the alkaline ionic liquid contains hydrophobic alkyl and is alkaline, alkaline anions and cellulose hydroxyl form a hydrogen bond network during pretreatment, a cellulose crystalline region is destroyed, and therefore the dye uptake is increased; during dyeing, the alkaline ionic liquid is used as a surfactant to be distributed on an interface of water and CO2 fluid to form a reverse emulsion, so that a microenvironment for the reactive dye to dye cotton fibers is provided; furthermore, alkaline anions of the alkaline ionic liquid can be subjected to exchange reaction with CO2 to generate carbonate, so that the polarity of a microenvironment is enhanced to be alkaline, the reaction activity of the reactive dye and the cotton fibers is improved, and the dye uptake is improved.
Owner:ZHEJIANG ALICE DYEING & FINISHING CO LTD

Low-temperature washing-free short-process pretreatment process

The invention belongs to the technical field of textile pretreatment processes, and particularly discloses a low-temperature washing-free short-process pretreatment process which comprises the following steps: (1) padding a fabric in a working solution, and stirring for 10-12 hours at 20-25 DEG C. The working solution comprises the following raw materials: a scouring agent, an alkali-resistant penetrant OEP-70, hydrogen peroxide, sodium silicate, ethylenediamine tetra (methylene phosphonic acid) pentasodium salt, caustic soda and water; (2) adding a water-free washing agent into the fabric subjected to padding treatment, and heating for 10-15 minutes at the temperature of 98-100 DEG C; (3) carrying out deoxidization treatment on the treated fabric; (4) immersing the treated fabric into the complex liquid, and stirring for 20-25 minutes at the temperature of 40-45 DEG C; the composite liquid is prepared from sodium dodecyl sulfate, modified chitosan, carboxymethyl cellulose, modified plant ash, polyethylene glycol and water. The fabric treated by the method is low in water consumption and high in dyeing efficiency and dye uptake, and the quality of the fabric is improved.
Owner:HANGZHOU XIAOSHAN SILK & CHEM FIBRE PRINTING & DYEING CO

Salt-free alkali-free electrostatic spray dyeing method for cellulose fibers

The invention belongs to the technical field of textile dyeing, and provides a salt-free alkali-free electrostatic spray dyeing method for cellulosic fibers, which comprises the following steps: uniformly mixing polyethylene oxide, reactive dye and solvent to obtain electrostatic dye liquor; the method comprises the following steps: dissolving a cationic modifier and an alkaline color fixing agent in water to prepare a cationic modified solution, padding a cellulose fiber fabric, and drying to obtain a cationic modified cellulose fiber fabric; and spraying the electrostatic dyeing liquid to the surface of the cationic modified cellulose fiber fabric through electrostatic spraying, and carrying out open-width steaming color fixation and cleaning to obtain the electrostatic spraying dyed cellulose fiber fabric. The electrostatic spraying technology is adopted to replace traditional water bath dyeing, excellent K / S value, dye uptake and color fastness can be achieved without consuming a large amount of salt, alkali and water, water resource consumption and environmental pollution are remarkably reduced, and high-salinity and high-chroma printing and dyeing wastewater is avoided.
Owner:QINGDAO UNIV +1

Cationic pretreating agent and application thereof in pad dyeing process of cotton fabric

The invention discloses a cationic pretreating agent and application thereof in a pad dyeing process of cotton fabrics. The cationic pretreating agent is prepared from the following components in percentage by mass: 1-10wt% of a cationic modifier; 0.1-1 wt% of an alkaline agent; and the balance of ultrapure water. The method comprises the following steps: (1) washing the cotton fabric with ultrapure water, and drying; (2) padding a cationic pretreatment agent; (3) baking at 100 DEG C for 2-6 minutes; (4) dyeing: performing pad dyeing on the pretreated cotton fabric with an active dye; (5) color fixation: directly putting the cotton fabric into a steamer at 100 DEG C for steaming and color fixation for 8-12 minutes without drying the cotton fabric; (6) washing: washing the cotton fabric subjected to color fixation for multiple times; and (7) drying. According to the invention, a limited amount of cationic modifier is utilized, and through the synergistic effect of the cationic modifier and sodium carbonate, the problems of large use amount of salt and alkali auxiliaries, much wastewater, low dye uptake and non-ideal fixation rate in the cotton fabric dyeing process in the prior art are fundamentally solved, and the color performance of the dyed fabric is improved; and the vacancy of a multi-factor interaction mechanism in the prior art is filled.
Owner:QINGDAO UNIV

Dyeing method capable of regulating and controlling in-situ assembly of dye molecules through cellulose fiber grafting modification

The invention belongs to the field of textile dyeing and finishing, and relates to a dyeing method capable of regulating and controlling in-situ assembly of dye molecules through cellulose fiber graft modification. The dyeing method comprises the following steps: soaking a cellulosic fiber textile in a 4-beta-hydroxyethylsulfonyl sulfate aniline-2-sulfonic acid aqueous solution for reaction, washing with water, drying, soaking in a hydrochloric acid aqueous solution, adding a sodium nitrite aqueous solution for reaction, adding urea, washing with water, and drying to obtain the cellulosic fiber textile. Soaking in a coupling component aqueous solution containing a coupling component, sodium hydroxide and sodium carbonate for reaction, alternately washing with hot water and cold water, and drying to obtain the dyed textile. The dyeing method is mild in condition, dye hydrolysis is avoided, the dye uptake and the dyeing fastness are improved, and the dye utilization rate is high; high temperature and a large amount of inorganic salt or auxiliaries are not needed, the dye is directly generated and fixed in the fiber, energy consumption is remarkably reduced, and waste water treatment pressure is reduced.
Owner:JIANGSU LIANFA TEXTILE

Easily-dyed high-temperature-resistant modified meta-aramid fiber, preparation method and application

The invention provides a dyeable high-temperature-resistant modified meta-position aramid fiber and a preparation method thereof. The modified meta-aramid fiber is mainly prepared from a spinning solution prepared from m-phenylenediamine, methyl 3, 5-diaminobenzoate, 3, 3 '-diaminodiphenyl sulfone and an isophthaloyl dichloride copolymer through dry spinning, and the dye uptake of a disperse dye is not lower than 85%; the thermal decomposition temperature is not less than 400 DEG C. The preparation method comprises the following steps. S1, fully continuous polymerization; s2, continuously neutralizing and conveying; s3, direct spinning; and S4, fiber forming and post-treatment. The method has the advantages that (1) the quality difference between batches in the traditional intermittent method is eliminated, and the uniformity and stability of the product performance are realized; and the preparation process is compact, the production efficiency is high and the energy consumption is low. And (2) the dyeing performance of the prepared fiber is obviously improved, the inherent high-temperature-resistant characteristic of the aramid fiber is maintained, and the mechanical property is excellent. And (3) the application range of the meta-position aramid fiber is expanded.
Owner:SHANGHAI ARAMID VALLEY NEW MATERIALS CO LTD +1

High-fixation direct injection chinlon digital printing process

The invention discloses a high-fixation direct injection chinlon digital printing process, and belongs to the technical field of fabric digital printing. The technology comprises the following steps of pretreatment, digital printing, color fixing agent treatment, calendaring and aftertreatment. The color fixing agent is a modified lignin-based color fixing agent, is obtained by sequentially performing hydroxyethylation modification, quaternization modification and amination modification on lignin, and can effectively promote dye uptake and reinforce combination between dye and fabric; the anti-ultraviolet, antibacterial and anti-corrosion functions are realized; in addition, toxic formaldehyde and isocyanate are not released in the fabric treatment process, no toxicity and environment friendliness are achieved, and the raw materials are renewable. The chinlon digital printing product obtained by the printing process provided by the invention is excellent in color fixing effect; the improvement effects in the aspects of dry and wet fastness, washing color fastness, soaping color fastness and the like can be equivalent to the effect of a commercial color fixing agent, and the color fixing agent has a wide market prospect.
Owner:SHAOXING QIANYONG TEXTILE CO LTD

Easily dyeable spandex and preparation method thereof

According to the easy-to-dye spandex and the preparation method thereof provided by the invention, the polyether ester polyol with a specific structure is added into a diol raw material in a spandex preparation process, so that a molecular soft segment of the prepared spandex fiber contains a specific aromatic group-polyether block structure. Compared with conventional spandex, the easy-to-dye spandex has the advantages that the dye-uptake rate and the color fixing capacity of the spandex to disperse dyes and acid dyes can be increased under the condition that the mechanical property of the spandex is not lost. By adjusting the mass ratio of the aromatic group-polyether block structure in the spandex molecule soft segment, the spandex has better alkali resistance under the condition of sufficient dye uptake and fixation rate.
Owner:ZHENGZHOU ZHONGYUAN SPANDEX ENG TECH CO LTD

Dyeing and finishing process of spandex fabric

The present application relates to a kind of acrylic fabric dyeing and finishing process, including low temperature adding disperse dye, and glacial acetic acid is used to dye fabric, when the dosage of disperse dye exceeds 2.0%, it needs to be reduced twice cleaning, when the dosage of dye is 0.5%~2.0%, it needs to be reduced once cleaning, remove surface attached disperse dye;When the dosage of dye is 0.5% or less, it does not need to be reduced cleaning, after completing reduction cleaning, adding organic acid to fabric for acid neutralization treatment, dehydration after tank, opening, setting.The present application can realize energy saving and time saving in dyeing process, improve the turnover rate of dyeing vat, can satisfy full color system dyeing, high dye uptake, bright color, high color fastness, good cloth surface quality.After dyeing, the hand feeling is softer than conventional polyester.
Owner:FUJIAN HANGGANG TEXTILE TECH CO LTD

Bisazo blue reactive dye for high-temperature dip dyeing as well as preparation method and application of bisazo blue reactive dye

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.
Owner:JIANGSU DEMEIKE CHEM ENG CO LTD

A high colorfastness polyamide 56 fabric and its preparation method

This invention relates to the field of textile printing and dyeing, and discloses a high-colorfastness polyamide 56 fabric and its preparation method. The polyamide 56 fabric contains 70-100% polyamide 56 fiber and 0-30% spandex. The fabric has been dyed at least once, and the dye used for dyeing is a reactive dye. The polyamide 56 fabric dyed with reactive dyes of this invention has the advantages of higher dye uptake, wider pH adaptability, no need for large amounts of calcium salts for dyeing, and minimal or no use of color-fixing crosslinking agents.
Owner:CATHAY BIOTECH INC +1

Bio-based acid dye and preparation method thereof

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.
Owner:NANJING TECH UNIV

Ultra-low bath ratio polyester cheese dyeing method

The invention discloses an ultra-low bath ratio polyester cheese dyeing method. The method comprises the following steps: cleaning polyester yarns; introducing the dye solution into a dyeing machine, and adding a penetrating agent, a leveling agent and a dispersing protective agent to prepare a dyeing solution with the pH value of 4-5; winding the cleaned polyester yarns into cheese, putting the cheese into a dyeing solution according to a bath ratio of 1: (2.5-3), and carrying out high-temperature dyeing at 85-130 DEG C; the dispersion protective agent is prepared from the following reaction monomer raw materials through free radical copolymerization in parts by mass: 10-15 parts of unsaturated carboxylic acid monomer; 12 to 16 parts of alkyl methacrylate; 4-6 parts of styrene; and 4-8 parts of a monomer containing a siloxane group. The polyester yarn with excellent dye uptake, color fastness and leveling property can be obtained under the conditions of ultralow bath ratio and high-temperature dyeing.
Owner:SHANGYU FENGDA DYEING & FINISHING CO LTD

Polyamide-6 filament based on high carboxyl modification and preparation method thereof

The invention discloses a chinlon 6 filament based on high carboxyl modification and a preparation method thereof, and belongs to the technical field of chinlon production. The polyamide 6 filament based on high carboxyl modification is prepared by adopting PA6 slices with low-end amino groups and high-end carboxyl groups as raw materials, the ordered combining capacity of fibers and anionic dye is enhanced by reducing the content of the end amino groups and increasing the proportion of the end carboxyl groups, the dye is prevented from being accumulated on the surface, the dyeing uniformity and the dyeing permeability of the polyamide 6 filament are improved, and the dyeing quality of the polyamide 6 filament is improved. Meanwhile, the production parameter combination is precisely regulated and controlled, so that more microporous structures are reserved to adsorb the dye while the high viscosity of the high-carboxyl section is solved in the production process, and dye molecules are more easily diffused into the fiber; the prepared chinlon 6 filament based on high carboxyl modification realizes high-saturation and high-uniformity dyeing under low dye concentration, has ideal dye-uptake and fixation rate, and also has excellent dyeing effect on light-color sensitive colors, not only reduces the washing times after the chinlon filament is dyed, but also does not fade after being washed for multiple times.
Owner:FUJIAN EVERSUN JINJIANG CO LTD

Alkali-resistant disperse dye and polyester-cotton fabric one-bath dyeing process

The invention relates to the technical field of textile fabric dyeing, in particular to an alkali-resistant disperse dye and a polyester-cotton fabric one-bath dyeing process. The alkali-resistant disperse dye comprises a disperse azo pigment, 3-chloro-2-hydrazinopyridine and an auxiliary agent. The mass ratio of the dispersed azo pigment to the 3-chloro-2-hydrazinopyridine is 100: (30 to 40). The ring N of the 3-chloro-2-hydrazinopyridine and the azo bond of the dispersed azo pigment form pi-pi conjugation, meanwhile, the steric hindrance is increased, and hydrolysis of alkali liquor to the azo bond is jointly inhibited, so that the disperse dye has good alkali resistance and can be mixed with reactive dye in an alkaline environment for one-bath dyeing. According to the present invention, the hydrazine group of the 3-chloro-2-hydrazinopyridine has good hydrophilicity, and the solubility of the dispersed azo pigment conjugated by the 3-chloro-2-hydrazinopyridine in water is improved, such that the heating temperature of the one-bath dyeing can be reduced, the destructive effect of the strong alkali high temperature on the polyester and the cotton fiber can be reduced, and the dye uptake can be improved;
Owner:SHAOXING KEQIAO ZHENTUO TEXTILE CO LTD

Polylactic acid / nanocellulose composite fiber dyeing process

The invention relates to the technical field of chemical textile processing, and discloses a polylactic acid / nanocellulose composite fiber dyeing process, which comprises a spinning solution preparation process, a spinning process and a dyeing process, and the spinning solution preparation process comprises the following steps: uniformly mixing a nanocellulose suspension, a polylactic acid solution and an additive, standing at 30-80 DEG C for 1-2 hours, performing high-energy electron beam radiation to form gel, and washing the gel to obtain a hydrogel spinning solution; in the spinning process, the hydrogel spinning solution is fed into wet spinning equipment for spinning to form fibers, the fibers are subjected to high-energy electron beam radiation drying reinforcement to obtain fiber filaments, the irradiation dose is 10-50 kGy, and the irradiation time is 3-5 minutes. The preparation method disclosed by the invention is simple, feasible, green and environment-friendly, the dye uptake of the prepared composite fiber reaches 80%, the strength of the composite fiber is enhanced by 1-2 times, and the fibrillation resistance is improved by 1-2 times.
Owner:JIN JIANG AN RUN TEXTILE CO LTD

Method for warp dyeing of polyester-cotton high-elasticity yarn

This invention belongs to the field of yarn dyeing technology, specifically relating to a method for dyeing warp beams of high-elasticity polyester-cotton yarn. The method includes a warp beam dyeing stage, a polyester dyeing stage, and a cotton dyeing stage. This invention explores and researches the winding and dyeing processes, ultimately breaking away from traditional winding methods and dyeing processes to improve the elasticity damage problem during the dyeing of Macca yarn. The warp beam sandwich provides a buffer space for yarn shrinkage, improving the elasticity of the dyed yarn. Lowering the polyester dyeing temperature, while ensuring dye uptake and colorfastness, improves yarn elasticity. The reduction and cleaning process using sodium hydrosulfite further enhances colorfastness.
Owner:LUTAI TEXTILE

An improved dyeing process for reactive dyeing of all-cotton knitted fabrics with short wet steaming

The present invention provides an improved short wet steaming dyeing process for reactive dyes on all-cotton knitted fabrics, which is characterized in that the steps include: S1, padding the dye liquor and auxiliaries; S2, quickly drying with a drying cylinder, adding a double-row drying cylinder and a temperature and humidity detection system, and installing a C-type steam adjustable heating device on the outer layer of the drying cylinder to control the final liquor pickup of the dyed fabric at 30±5%; S3, quickly steaming; S4, cold water washing, washing at room temperature through 2 water washing tanks; S5, hot water washing; S6, soaping; S7, high-temperature water washing; S8, acid washing. It solves the curling phenomenon of knitted fabrics, reduces the liquor pickup of the fabric surface, reduces steam consumption, controls the pre-drying degree of both sides of the fabric surface, reduces the dye migration during the dyeing process of knitted fabrics, alleviates dye hydrolysis, and improves the dye uptake rate and fixation rate.
Owner:SHANDONG ZHONGKANG GUOCHUANG RES INST OF ADVANCED DYEING & FINISHING TECH CO LTD

Anti-pilling dyeing and finishing process for knitted fabric

The invention provides an anti-fuzzing and anti-pilling dyeing and finishing process for knitted fabrics, and relates to the technical field of textile processes, the anti-fuzzing and anti-pilling grade of the knitted fabrics treated by the process is remarkably improved, the process can make dyes more uniformly and fully permeate and adhere to fibers, the dye uptake is remarkably improved, and the anti-fuzzing and anti-pilling performance of the knitted fabrics is improved. By accurately controlling the parameters of each dyeing and finishing link, the shrinkage rate of the fabric is effectively reduced, the dimensional stability of the fabric is improved, the time and energy consumption in the production process is reduced due to the optimized process parameters, and the defective rate is reduced due to the stable process control, so that the production efficiency is improved, the production cost is reduced, and the product quality is improved. The process is suitable for various common knitted fabrics, such as pure cotton, polyester cotton blending and pure polyester, a unified and effective dyeing and finishing scheme is provided for enterprises to produce different types of knitted products, the market adaptability of the enterprises is enhanced, and the quality indexes of the knitted fabrics in multiple aspects, such as fuzzing and pilling resistance, color effect, shrinkage rate and hand feeling, are comprehensively improved.
Owner:ZHEJIANG HENGCHEN PRINTING & DYEING CO LTD

Textile dye as well as preparation method and dyeing method thereof

The invention provides a textile dye as well as a preparation method and a dyeing method thereof, the preparation method of the textile dye comprises the following specific steps: S1, carrying out superfine grinding on a natural extract until the particle size is 2-10 microns to obtain extract powder; s2, uniformly mixing the extract powder with modified glucan, metal salt grafted cellulose whiskers and polylactic acid microspheres to obtain a material; s3, adding the materials into water, stirring, curing, drying and crushing to obtain the dye. The natural extract powder, the modified glucan, the metal salt grafted cellulose whiskers and the polylactic acid microspheres are compounded, the dye is green, environmentally friendly and safe, the obtained dye is high in stability, has the effects of being high in dye uptake and uniform in dyeing and is high in affinity to textiles, and the obtained dyed textiles are good in color fastness, high in light stability, not prone to fading and good in color fastness. And the method has important popularization and application values.
Owner:HUNAN JUNBANG TEXTILE TECH CO LTD

Special dual-activity modifier for fibers and fabrics thereof and preparation method of special dual-activity modifier

The invention relates to the field of textile printing and dyeing auxiliaries, in particular to a special double-activity modifier for fibers and fabrics thereof and a preparation method of the special double-activity modifier, and the special double-activity modifier comprises the following raw materials in parts by weight: 8-10 parts of a modified active agent, 4-5 parts of composite titanium oxide, 0.8-1 part of a printing and dyeing improver and 30-40 parts of water; by preparing the modified active agent and combining the modified active agent with the composite titanium oxide, the double-active modifier is formed, and the problems that the rubbing fastness, the scrubbing fastness, the dye uptake during dyeing and the fixation rate of fibers and fabrics thereof modified by an existing active modifier are insufficient are solved.
Owner:DONGYING ZEAO CHEM CO LTD

Dye compound and preparation method thereof, alkali-resistant high-water-washing disperse dye and application thereof

The invention provides a dye compound, a preparation method thereof, an alkali-resistant high-water-washing disperse dye and application thereof, and particularly relates to the technical field of dye chemical industry. The dye compound has a structure as shown in a formula I, in the formula I, R1 is selected from substituted or unsubstituted nitrophenyl, 6-nitro-benzothiazolyl, 6, 7-dichlorobenzothiazolyl or 5, 6-dichlorobenzothiazolyl; r1 is selected from methyl or hydrogen atom, R2 is selected from methyl or hydrogen atom, R3 is selected from methyl, ethyl, allyl and cyanomethyl, and R4 is selected from bromine, chlorine, cyano or methyl. According to the dye compound provided by the invention, the azo group and R1 act together, so that the dye compound possibly has rich colors; r1, R2, R3 and R4 substituent groups influence the hydrophilic-hydrophobic property of molecules and the binding capacity with fibers, and the affinity of the dye to the fibers is improved, so that the dye uptake is improved. The interaction between a benzene ring or a benzothiazole ring and a substituent group in the structure endows the dye compound with good color fastness.
Owner:SHANDONG ANNOQI FINE CHEM CO LTD +3

Bio-enzyme composite low-temperature dyeing process for wool fabric

The invention relates to the technical field of dyeing, and particularly discloses a bio-enzyme composite low-temperature dyeing process for wool fabrics, a plurality of effective components are used for embedding a composite bio-enzyme, then the composite bio-enzyme is added into a dye, the wool fabrics are dyed under a low-temperature condition, the embedded composite bio-enzyme can prevent the composite bio-enzyme from being inactivated in the dyeing process, and the dyeing quality is improved. Meanwhile, the fixation rate of the dye on the wool fabric can be improved through the slow release effect of the microcapsules. Through the synergistic effect of various effective components, the stability of the biological enzyme is improved, the dye uptake of the dye to the wool fabric is improved, the fixation rate of the dye to the wool fabric is improved, the dyeing temperature is reduced, and the dye is suitable for large-scale popularization and application.
Owner:JIAXING VOCATIONAL TECHN COLLEGE

Method for producing cured product of resin composition

PCT designated stage expiredWO2025033488A1Polymer scienceEthyl group
Provided is a method for producing a cured product of a resin composition, the method making it possible to obtain a cured product with good physical properties from a resin composition containing an ethylenically unsaturated group-containing resin. The method for producing a cured product of a resin composition according to the present invention irradiates, with light emitted from a light-emitting diode, a resin composition containing an ethylenically unsaturated group-containing resin (A), an ethylenically unsaturated group-containing monomer (B), a photopolymerization initiator (C), and a dye (D) to cure the resin composition. The dye (D) has a maximum absorption wavelength in the 400-1100 nm wavelength range. The light emitted from the light-emitting diode includes light (1) which is in the absorption wavelength range of the photoinitiator (C) and light (2) which is in the absorption wavelength range of the dye (D).
Owner:RESONAC CORP

Dyeing device for sulfur black

The utility model discloses a dyeing device for sulfur black, and relates to the technical field of dyeing. Comprising a bottom frame, a barrel is fixedly connected to the top end of the bottom frame, a connecting plate is fixedly connected to the barrel, a large cover plate is rotatably connected to the top end of the connecting plate, the large cover plate covers the top end of the barrel, the round sliding way is fixedly connected to the inner bottom end of the barrel, and connecting rods distributed at equal intervals are slidably connected into the round sliding way. A cylinder is fixedly connected between the connecting rods distributed at equal intervals, and the sides, close to each other, of the cylinder and the barrel are fixedly connected with rubber extrusion pieces distributed at equal intervals in the circumferential direction. Dye liquor and cloth are placed between the barrel and the cylinder, the cylinder rotates to extrude and roll the cloth through the rubber extrusion sheet, dye can better permeate into fibers, and therefore the dye uptake percentage and uniformity of the dye are improved, and the dyeing depth and color fastness are improved.
Owner:SHANXI YINSHENG FINE CHEM TECH CO LTD

Green reactive dye composition, reactive dye product and application

The invention relates to the technical field of textile printing and dyeing, and particularly discloses a green reactive dye composition, a reactive dye product and application. The green reactive dye composition comprises a component A, a component B and a component C, wherein the component A is selected from at least one of dye compounds as shown in a formula (I); the component B is selected from at least one of dye compounds as shown in a formula (II); and the component C is selected from at least one of dye compounds as shown in a formula (III). The green reactive dye composition has the advantages of high compatibility, good stability, uniform dyeing, no dyeing defect and high dyeing color fastness, also has the characteristics of high fixation rate, high dye uptake and high dyeing efficiency, can stably dye in low-temperature, low-bath-ratio, low-salt and low-alkali environments, reduces the dyeing cost, and has commercial application prospects and economic values. Formula (I): Formula (II): Formula (III): Formula (I): Formula (II): Formula (III):
Owner:SUZHOU KEFAMAN CHEM CO LTD

Fabric and textile process thereof

The present invention relates to the field of textiles, and more specifically to a fabric and a textile process thereof. The method comprises the following steps: S1: introducing a grey cloth into a desizing device, injecting a desizing agent into the desizing device, and spraying the desizing agent onto the grey cloth; S2: desizing the grey cloth by the desizing device; S3: washing and fixing the front and back sides of the desizing cloth textile fabric obtained by desizing and washing with a fixing agent three times; S4: drying the fabric in an oven under a certain tension; S5: ironing and fixing at 120-125°C for 20-25 minutes to obtain a textile fabric. A fabric woven by a fabric textile process, the fabric is composed of the following raw materials by weight: 50-60 parts of cashmere, 20-30 parts of camel hair, 20-30 parts of cotton fiber, 10-15 parts of polyester fiber and 3-5 parts of mildewproof agent. The beneficial effect is that the desizing effect of the grey cloth can be improved, and the dyeing rate of the fabric in the subsequent dyeing process can be improved.
Owner:PUJIANG SHENGDAN IND & TRADE CO LTD

Material blends with patterned fabric

A blended fabric having a patterned color includes a first portion composed of cotton and a second portion composed of polyester. A dye having a strong affinity for cotton and a slight affinity for polyester is applied to the fabric. The dye imparts a dark black color to the cotton portion and applies a light gray color to the polyester portion. The combination of dark black cotton and light gray polyester in combination provides the patterned color to the blended fabric. The blended fabric may be composed of a greater percentage of cotton than polyester, the cotton and polyester being spun into monofilament yarns that are then knitted into a plain knit style fabric, a looped knitted terry fabric, or a raised fabric. Furthermore, the present invention includes a blended fabric whereby the cotton rather than the polyester absorbs dyes to create darker and lighter patterns within the blended fabric.
Owner:ALO LLC

Dyeing method without mordant

A method of dyeing a textile, the method comprising depositing a metal organic framework (MOF) on at least one surface of the textile, thereby forming a MOF functionalized textile; contacting the MOF functionalized textile with a dye to form a dyed textile; and optionally drying the dyed textile. The metal organic framework functionalized textile can be effectively dyed by natural dye under the condition that a traditional mordant is not used, and has higher dye uptake and color fastness.
Owner:THE HONG KONG RES INST OF TEXTILES & APPAREL