316 results about "Disperse dye" patented technology

The invention relates to the technical field of data processing, in particular to a liquid disperse dye for polyester fabrics and a use method thereof, and the dye comprises an azo or anthraquinone disperse dye main agent subjected to superfine grinding, a nonionic and anionic compound dispersant system, a fiber plasticizer and a stabilizer. According to the preparation method, molecular dynamics simulation and mesoscale dissipative particle dynamics simulation are combined, the synergistic effect of a dispersant adsorption configuration and double electric layer potential is quantified, and a nonlinear association rule of dynamic particle size control and dispersion stability is established; a multi-physics field coupling model is adopted to integrate fiber humidity, temperature gradient and pressure distribution parameters, and cross-scale collaborative optimization of microscopic interface action and macroscopic process parameters is achieved. According to the method, repetitive experiment iteration is replaced by digital design, the formula development period is remarkably shortened, the dyeing uniformity and the batch-to-batch reproducibility are improved, and the method is suitable for continuous dyeing production of high-density and superfine polyester fabrics.

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.

The invention provides high-grinding-efficiency color paste, a preparation method thereof and dispersed ink, and belongs to the technical field of dispersed ink, and the high-grinding-efficiency color paste comprises the following components in percentage by weight: 15%-30% of disperse dye toner, 15%-25% of a dispersing agent, 5%-15% of resin ammonium salt, 10%-20% of a dissolution promoting mixture, 0.5%-2% of a wetting agent and the balance of water; the dispersing agent comprises a hyperbranched polymer and a sodium naphthalene sulfonate improved polymer; the hyperbranched polymer takes a benzene ring as a center, hydrophobic groups and hydrophilic groups on a branched chain are randomly distributed, the hydrophilic groups of the branched chain comprise carboxylate and sulfonate, and the hydrophobic groups of the branched chain comprise alkane, ester and aryl. According to the invention, the hyperbranched polymer and the sodium naphthalene sulfonate improved polymer are mixed with the dispersing agent, so that the problem of abrupt change of ink viscosity can be avoided when the content of ink toner is relatively high, thereby obtaining the color paste with strong dispersion and high stability, and further obtaining the dispersed ink with good stability.

The invention discloses a preparation method and application of a multicolor double-dyed antibacterial polyester-cotton fabric, and the preparation method comprises the following steps: S1, mixing a polyester-cotton fabric, a disperse dye and a solvent, and carrying out high-temperature and high-pressure treatment to obtain a dyed polyester-cotton fabric; s2, dipping the dyed polyester-cotton fabric in a cyanuric chloride solution, and carrying out a first heating reaction to obtain a cyanuric chloride grafted polyester-cotton fabric; and S3, dipping the cyanuric chloride grafted polyester-cotton fabric in a sodium copper chlorophyllin aqueous solution, and carrying out a second heating reaction to obtain the multicolor double-dyed antibacterial polyester-cotton fabric. By controlling the process conditions of the polyester high-temperature and high-pressure dyeing process, the content of hydroxyl exposed on the surface of cotton fiber in the fabric is effectively increased while dyeing is performed, so that more sodium copper chlorophyllin is grafted on the surface of the fabric through cyanuric chloride, and the polyester-cotton fabric with diversified colors, excellent antibacterial effect and good toughness is obtained.

The invention relates to the technical field of dye preparation data processing, in particular to a liquid disperse dye suitable for high-temperature and high-pressure dyeing and a preparation method thereof.The dye comprises a composite dye matrix, a dispersion stabilizing system and a solvent medium, disperse black dye is formed by compounding disperse purple 93, disperse orange 288 and disperse blue 291 in the ratio of 1, and the disperse black dye is a liquid disperse dye suitable for high-temperature and high-pressure dyeing. And a nano-scale dispersion system is constructed by combining the synergistic effect of hexadecylamine / octadecylamine polyoxyethylene ether and lauryl amine polyoxyethylene ether. According to the preparation method, on the basis of a dynamic behavior prediction model, micelle formation dynamic data in a premixing stage, viscosity and particle size associated data in a shearing stage and thixotropic index change data in a homogenizing stage are integrated, and a surfactant proportion optimization instruction is generated; according to the invention, the stability of the dispersoid structure is controlled, the dyeing uniformity and color fastness are improved, and the wastewater COD discharge load and the production cost are reduced.

The invention belongs to the field of dyes, and particularly relates to an alkali-washable disperse dye containing carboxylic ester and a phthalic diamide structure and a preparation method of the alkali-washable disperse dye. The invention provides an alkali-washable disperse dye containing carboxylic ester and a phthalic diamide structure, the structural general formula of the alkali-washable disperse dye containing carboxylic ester and the phthalic diamide structure is as follows: # imgabs0. The invention also provides a preparation method of the alkali-washable disperse dye containing carboxylic ester and the phthalic diamide structure, and the preparation method comprises the following steps: preparation of a coupling component, preparation of a diazonium salt solution, and coupling reaction. According to the alkali-washable disperse dye containing the carboxylic ester and phthalic diamide structure, carboxylic ester groups with high polarity exist in the dye structure, the affinity of the dye on polyester fibers can be improved, and therefore the alkali-washable disperse dye is endowed with excellent washing performance and has wide application prospects.

The invention belongs to the technical field of textile materials, and relates to an environment-adaptive multi-spectrum camouflage cloak and a preparation method thereof. Comprising a cloak body, the cloak body is made of composite fabric, the composite fabric sequentially comprises a wear-resistant layer, a waterproof layer and a close-fitting layer from outside to inside, and the surface of the wear-resistant layer is sequentially coated with a thermochromic dye layer, a far infrared plating layer and a visible light hiding layer from bottom to top; the thermochromic dye layer is formed by compounding disperse dye and bistable thermochromic microcapsules, and the visible light stealth layer is prepared from photonic crystal gel; and the far infrared plating layer is prepared from an indium tin oxide film. The desert camouflage is switched below 5 DEG C, the woodland camouflage is switched above 60 DEG C, and different regional environments are matched; according to efficient multi-spectrum camouflage, the color difference between the visible light band and the background is smaller than or equal to 1.95, three emissivity levels are formed in the infrared band, and the thermal imaging detection probability is reduced.

The invention relates to a partition control method based on a polymerized disperse dye liquid crystal dimming film, and belongs to the technical field of dimming films. The method comprises the steps that voltage control is conducted on conducting layers of the dimming device through a voltage adjusting device, the conducting layers are composed of a first conducting layer and a second conducting layer, each conducting layer comprises a plurality of independent control areas, and the first conducting layer and the second conducting layer are each provided with an electrode unit and are electrically connected with electrodes of the voltage adjusting device. The voltage adjusting device is based on phase angle control of an alternating current power supply, and the effective value of the input voltage is changed by adjusting the trigger conduction angle of the electrode unit in the independent control area, so that fine regulation and control of the light transmittance and haze of the dimming film are realized. The method solves the problems of step abrupt change and power grid sensitivity of traditional dimming film partition control, realizes accurate partition control, improves the consistency of the dimming effect, and reduces the complexity and cost of the system.

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.

The invention relates to the technical field of spectral analysis, in particular to a disperse dye component spectral analysis and identification system based on trace detection, which comprises a wave band interception module, a perturbation extraction module, a spectrum curve identification turning point recording fluctuation direction and a continuous extraction main peak core area expansion two-side generation analysis area, a phase shifting module is used for analyzing a curve fragment lifting relation and a turning sequence to generate a trajectory diagram; and a dye locking module is used for extracting a dye component with the highest matching degree by matching trajectory features to generate a candidate set. According to the method, a core peak area is locked through the fluctuation direction and continuity of a curve turning point, secondary wave crests are discriminated through an adjacent slowly-changing section, a disturbance sequence is formed by combining a mass center offset ratio and curvature connection, a curve fragment lifting relation and a turning sequence are analyzed to generate track mapping, and dye components are screened through track arrangement and offset symmetric matching. And the frequency distribution interval continuity and peak value overlapping verification ensure reliable identification.

The application discloses a low-temperature one-bath dyeing process for polyester-cotton blended fabric, which comprises the following steps: soaking the polyester-cotton blended fabric in an aqueous solution of alkaline ionic liquid for pretreatment to obtain a pretreated fabric with liquid; then mixing the pretreated fabric with liquid with reactive dyes and disperse dyes, and then performing supercritical CO2 fluid dyeing to obtain dyed fabric; the alkaline ionic liquid contains hydrophobic alkyl groups and has alkalinity; during the pretreatment, the alkaline anions form a hydrogen bond network with the hydroxyl groups of cellulose, thereby destroying the crystalline region of cellulose and increasing the dyeing rate; during the dyeing, the alkaline ionic liquid is distributed on the interface between water and CO2 fluid as a surfactant to form an inverse emulsion, thereby providing a microenvironment for the dyeing of cotton fibers by the reactive dyes; in addition, the alkaline anions of the alkaline ionic liquid can exchange with CO2 to generate carbonates, so that the polarity of the microenvironment is enhanced to be alkaline, and the reactivity of the reactive dyes and cotton fibers is improved, thereby improving the dyeing rate.

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.

The invention relates to a bright-color gradient-color safety belt and a production process thereof, and relates to the technical field of fabric production processes, and the bright-color gradient-color safety belt comprises a gradient-color woven belt and a color optimization finishing agent, the color optimization finishing agent comprises the following components in parts by mass: 20-30 parts of nano disperse dye, 10-15 parts of an ultraviolet light absorber, 5-10 parts of mesoporous silica, 15-20 parts of a color fixing agent, 5-8 parts of an organic silicon softening agent, 2-4 parts of a fluorescent whitening agent, 1-2 parts of a pH buffering agent and 30-40 parts of a solvent. The production process comprises the following steps: weaving more than two yarns with different colors to obtain a gradient yarn-dyed woven belt; the preparation method comprises the following steps: removing impurities, flattening to obtain a treated braid, padding the treated braid in a color optimization finishing agent, washing with water, fixing color, shaping in cold water, drying after treatment, packaging and storing to obtain the gradient color safety belt with bright color. The gradient color safety belt has the effect of improving the optical performance, the color fastness and the structural stability of the gradient color safety belt, and has a good safety protection function and durability.

The invention relates to the technical field of non-woven fabric coloring, in particular to a non-woven fabric coloring method which comprises the following steps: step 1, pre-treating non-woven fabric to enhance binding force; 2, coloring by combining an electrospinning method with a concave-convex structure; step 3, spraying step by step; 4, directional texture design and concave-convex mold auxiliary forming are carried out; and 5, environment-friendly low-temperature curing and follow-up treatment are conducted. The non-woven fabric is pretreated through plasma surface activation and ultrasonic alternate cleaning to enhance the binding force, and through nanofiber composite spraying, a mixed solution of a high-molecular compound and a coloring agent is sprayed through an electrospinning method, and a fiber layer with a concave-convex shape is formed on the surface of a collecting device; finally, a low-temperature curing technology is adopted, heating at the temperature of 40-60 DEG C or air drying at the room temperature is adopted, energy consumption is reduced, non-chemical structural colors are used for replacing, traditional acidic and disperse dyes are completely abandoned, colors are generated through physical arrangement of colloidal microspheres, waste water pollution is avoided, and therefore the method is good in process effect and high in environmental friendliness.

The application discloses a preparation method of a fabric with light-absorbing, heat-generating and antistatic composite functions. CuS nanoparticles are dispersed in a dispersion liquid, and tetraethyl orthosilicate is slowly added dropwise. After continuous stirring reaction, the reaction precipitate is dried to obtain silica-coated copper sulfide nanoparticles. The dispersion liquid is a mixed solution of ethanol, water and ammonia water. The silica-coated copper sulfide nanoparticles, disperse dye, crosslinking agent, surfactant, dispersant and deionized water are stirred and mixed, and ultrasonic dispersion is carried out. Then, the adhesive is added and stirred uniformly. Grinding particles are added to the mixed solution for grinding, and the grinding particles are removed through sieving to obtain a finishing liquid. The pretreated polyester fabric is pad-dyed in the finishing liquid, and is dried and solidified. Finally, the fabric product is obtained through washing and drying. The silica-coated copper sulfide nanoparticles realize the combination of light-absorbing, heat-generating, warm-keeping and static elimination functions, and the production cost is low, and the process is simple.

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.

The utility model belongs to the technical field of stirring paddles, and discloses a disperse dye reaction kettle stirring paddle which comprises a mounting mechanism arranged on a reaction kettle stirring shaft, a paddle body is arranged on the mounting mechanism, the paddle body comprises two mounting blocks which are horizontally arranged at an interval, strip-shaped grooves are vertically formed in the mounting blocks, and notches of the two strip-shaped grooves are oppositely arranged; a first paddle plate is fixedly arranged between the groove walls on the same side of the two strip-shaped grooves, a second paddle plate is slidably arranged between the two strip-shaped grooves, a plurality of first through holes are formed in the first paddle plate, second through holes corresponding to the first through holes are formed in the second paddle plate, and a driving mechanism for driving the second paddle plate to slide is arranged on the mounting block far away from the stirring shaft of the reaction kettle. The driving mechanism is used for driving the second paddle plate to slide in the strip-shaped groove, so that the first through holes and the second through holes in the first paddle plate and the second paddle plate coincide or are staggered, the dispersing and stirring effect is changed, the stirring reaction speed and efficiency can be controlled without replacing paddles of different types, and convenience is achieved.

The present application belongs to the technical field of textiles, and relates to a preparation method of a polyester fabric with a gradient dyeing effect, which comprises the following steps: after a fabric is woven from dynamic profiled yarns, the fabric is subjected to desizing and scouring treatment, and then is subjected to heat setting; subsequently, the heat-set fabric is immersed in a dye bath containing disperse dyes, and is subjected to dyeing by using a high-temperature and high-pressure dyeing method, so as to obtain a polyester fabric with a gradient dyeing effect; the cross-sectional shape of the monofilament of the dynamic profiled yarns periodically changes along the length direction, and the cross-sectional shape of the monofilament on each period is circular, flat and triangular in sequence. The present application realizes a differentiated dyeing effect, and simultaneously controls the timing of the nozzles, sets the cross-sectional change period, and makes the monofilament form a regular alternation of 'light-mid-dark' along the length direction, so that the finally prepared fabric presents a gradient dyeing effect after dyeing.

The present disclosure relates to the field of textile printing and dyeing technology, and particularly relates to an environmentally-friendly liquid dispersion dye with ultra-low pollution; the environmentally-friendly liquid dispersion dye is prepared by the following steps: preparing a Hippophae rhamnoides extract, dissolving the Hippophae rhamnoides extract in an acid solution and mixing with aluminum hydroxide; preparing a Ginkgo biloba extract, dissolving the Ginkgo biloba extract in an acid solution and mixing with aluminum hydroxide; then mixing the two in a sodium bicarbonate aqueous solution with a complexing agent and a stabilizer, drying to obtain a solid, and finally reacting the solid with polyethyleneimine to obtain an environmentally-friendly orange dye with good dispersibility.

The invention relates to a polyester fabric dyeing method which comprises the following steps: firstly, pretreating a polyester fabric, namely desizing, bleaching and heat setting; putting the pretreated polyester fabric into a dye vat at room temperature, heating, adding an alkaline leveling agent, a color fixing agent, a disperse dye and a pH regulator into the dye vat, heating, and keeping the temperature; cooling and discharging liquid in the dye vat; deionized water is added into the dye vat, the polyester fabric is washed with water, and the washed polyester fabric is subjected to softening treatment, tentering setting and antistatic treatment; and finally, carrying out secondary washing on the polyester fabric. The alkaline leveling agent, the color fixing agent, the disperse dye and the pH regulator are added in the dyeing process, so that the dye fully permeates into the fiber, and the dyeing uniformity is effectively improved; meanwhile, an environment-friendly color fixing agent is adopted, so that potential hazards to the environment and human bodies are reduced; after dyeing is completed, the polyester fabric is subjected to secondary washing, chemical substances remaining on the polyester fabric are removed, and the safety of the polyester fabric is guaranteed.

The invention provides digital jet printing ink for a degradable fiber material and a preparation method thereof, and relates to the technical field of digital jet printing ink, the digital jet printing ink comprises a disperse dye compound, a composite additive system and water; the compound additive system comprises at least one of a dispersing agent, a humectant and a wetting agent; the disperse dye compound is selected from specific disperse dye compounds with moderate molecular weight and strong low-temperature mobility. The digital jet printing ink is specially used for jet printing of degradable fiber materials, can fix color at the low temperature of 150-160 DEG C or below, has excellent color expression, fastness and environmental protection characteristics, and is very suitable for digital jet printing of green materials.

The present invention relates to the field of organic dyes, and particularly to an azo disperse dye and a preparation method thereof. The method includes: 1. After the initial reaction of cyanoacetate and organic amine, continue to react with acetoacetate to prepare a pyridone compound; 2. Add an aromatic amine compound to an acid solution and carry out a diazotization reaction with a diazotizing reagent to obtain an aromatic amine diazonium salt solution; 3. Add the pyridone compound to the aromatic amine diazonium salt solution for a coupling reaction to obtain the product. The molecular structure of the azo disperse dye of the present invention has an alkyl chain segment with a "lipophilic-hydrophilic" structure, which is similar to the chain segment structure of polyester fiber and has high affinity, so it has good dyeing performance on fiber materials. At the same time, this alkyl chain segment can make the dye have good dispersibility in water, has the ability to wash off the floating color on the fiber surface, and has excellent wet treatment fastness performance on fiber materials.

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;

The present application relates to the field of printing dye technology, and more particularly to a photochromic printing dye, its preparation method, and its application. The photochromic printing dye provided herein is obtained by dispersing a disperse dye and microcapsules in an organic continuous phase. The disperse dye is selected from indigo dye, anthraquinone dye, or triarylmethane dye. The core material of the microcapsules is an oxidant, and the shell material of the microcapsules is a SiO2 complex. The printing dye provided herein contains microcapsules with an oxidant as the core material. During the washing process, the oxidant is slowly released from the shell material and has strong oxidizing properties. On the one hand, it can have a bactericidal effect. On the other hand, during the drying process, it can react with the disperse dye that is prone to photooxidation, causing the disperse dye to slowly decompose and fade.

The utility model belongs to the field of cleaning equipment, and relates to a banner printer and an advertisement banner, in particular to a cloth washing machine for cleaning the advertisement banner, which comprises a machine table, a pressing and soaking module used for pressing advertisement banners into the ultrasonic cleaning machine, a flushing module used for flushing the surfaces of the advertisement banners and a water squeezing module used for squeezing out water in the advertisement banners are arranged above the ultrasonic cleaning machine, and a water circulation module and a water quality purification module are further arranged on the lower portion of the machine table. The advertisement banner cleaning device comprises a pressing and soaking module used for pressing an advertisement banner into an ultrasonic cleaning machine, the ultrasonic cleaning machine used for cleaning, a flushing module used for flushing the surface of the advertisement banner and a water squeezing module used for squeezing out water in the advertisement banner, and the multiple modules are matched to complete deep cleaning of the advertisement banner. And the disperse dye in the non-printed color development area of the advertisement banner falls off.

The invention provides a temperature-controllable disperse dye reaction kettle, and relates to the technical field of reaction kettles, the temperature-controllable disperse dye reaction kettle comprises an outer kettle shell, the outer kettle shell is made of a high-strength material, can stably support internal components, isolates interference of an external environment on reaction in the kettle, and plays a core role in overall supporting and protection; the outer kettle shell is internally provided with an inner kettle, the inner kettle is made of a corrosion-resistant material with adaptive heat-conducting property and can be in direct contact with a disperse dye reaction system, the middle-layer heat exchange pipes are uniformly distributed along the inner wall of the inner kettle in the circumferential direction, so that the local temperature deviation in the kettle can be accurately compensated, and the temperature gradient and the micro-level of the edge and the center are avoided; the heat conduction oil is introduced into the hollow channels of the hollow stirring shaft and the paddles, and is matched with the heat dissipation holes in the surfaces of the paddles, so that a heat exchange function is permeated to a material core area, the problem of disperse dye colored light deviation caused by uneven temperature is greatly reduced, meanwhile, dye particle aggregation is effectively inhibited, and the stability and consistency of dye products are remarkably improved.

The invention relates to the technical field of textile printing and dyeing, and particularly discloses a disperse dye as well as a preparation method and application thereof. The disperse dye provided by the invention comprises a disperse pigment and an auxiliary agent, the auxiliaries comprise ionic liquid containing imidazolyl, sodium gluconate and sucrose stearate. According to the invention, specific components of the auxiliary agent in the disperse dye are limited, and all the components have a synergistic effect, so that the structural stability of the disperse pigment in an alkali and hydrogen peroxide coexistence environment is obviously improved, and the dyeing uniformity and stability of the disperse dye on polyester-cotton knitted fabric can also be improved.

The invention relates to the field of disperse dye production, and discloses environment-friendly disperse dye production equipment which comprises a tank body, a base assembly is arranged at the bottom of the tank body, a feeding port is formed in the top of the tank body, a discharging port is formed in the side face of the tank body, and a stirring structure is arranged in the tank body. Two groups of auxiliary stirring assemblies capable of independently rotating are arranged on the side surface of the stirring structure, and the stirring structure can drive the auxiliary stirring assemblies to rotate, so that compared with the traditional equipment which has the problems of high water resource consumption and much wastewater discharge, the equipment has the advantages that the adaptability of a tank body sealing structure and a production process is optimized; the dissipation of the dye and the auxiliaries in the production process is effectively reduced, and the pollution to the air environment is reduced. Meanwhile, the efficient stirring system can shorten the material mixing time and indirectly reduce the water resource and energy consumption in the production process.

The invention discloses sublimation-resistant heat transfer printing ink which is good in cloth coloring penetration and not prone to secondary sublimation, a preparation method and a transfer printing process of the sublimation-resistant heat transfer printing ink. The sublimation-resistant heat transfer printing ink is prepared from the following components in percentage by mass: 20%-40% of disperse dye color paste, 25%-35% of an organic solvent, 0.1%-3% of a surfactant, 0.1%-1.5% of a water-based polymer, 0.1%-3% of a defoaming agent, 0.1%-0.5% of an acid-base regulator, 0.1%-2% of a bactericide and the balance of deionized water. The invention is applied to the technical field of digital printing ink jet.

The invention belongs to the technical field of textile dyeing and finishing assistants, and discloses a high-efficiency level dyeing assistant for dyeing and finishing and a preparation method thereof, the assistant is formed by assembling an amphiphilic block copolymer and a dynamic reversible covalent bond polymer, the block copolymer has hydrophilic and oleophylic sections, nano-scale micelles are formed through self-assembly, and the nano-scale micelles are uniformly dispersed in the dynamic reversible covalent bond polymer. Dye molecules can be efficiently captured, slowly released and stably dispersed; a reversible ketoxime bond is introduced into a main chain of the dynamic polymer to form a cross-linked network with micelles, so that the assistant keeps a stable structure under a dyeing condition; after dyeing and finishing are finished, reversible bond breakage is triggered through acid-base adjustment or reducing agent treatment, micelles are rapidly depolymerized, and the auxiliaries are recycled and can be repeatedly used; the auxiliary agent can significantly improve the uniform dispersion of dye in dye liquor and the color consistency of fabric, enhance the color fastness, reduce the dosage of the auxiliary agent and reduce the wastewater treatment load, and has good environmental protection and cyclic utilization performance.