193 results about "Textile dyeing" patented technology

The invention belongs to the field of plastic product production, and particularly relates to a composite material for preparing a textile dyeing tube. The composite material mainly comprises the following components in parts by weight: 10 parts of PET resin, 10 parts of ASA resin, 1-6 parts of matt master batches, 1-3 parts of titanium dioxide, 1-2 parts of rosin, 0-1.5 parts of an antioxidant, 0-1 part of a fire retardant and 1-2 parts of a lubricating agent, wherein titanium dioxide is rutile titanium dioxide. Compared with the prior art, the components are good in compatibility; the molded product has excellent physical and mechanical properties, low glossiness, high strength (caused by titanium dioxide) and good tenacity, and is suitable for injection molding of plastic products; the metallic luster caused by titanium dioxide can be reduced; the noise can be reduced; titanium dioxide can be used for disinfecting under irradiation of an ultraviolet lamp; the composite material is very convenient; and the lubricating agent is added, so that the surface is relatively smooth.

The invention belongs to the technical field of textile dyeing methods, and particularly relates to a tension-free anti-fibrillation dyeing method for lyocell blended yarn. The tension-free fibrillating-resistant dyeing method of the lyocell blended yarn comprises the following steps: preparing a bobbin-free loose yarn bundle, namely loosely winding lyocell pure spinning or blended yarn into tension-free yarn bundles of which the weight is 0.5-1.5 kg by adopting an integrated chuck bobbin, and meanwhile, wrapping the tension-free yarn bundles with knitted sock legs; according to the tension-free loose yarn bundle filling, a cross-shaped lifting chain is matched with a yarn bundle grate, staggered filling shaped like a Chinese character'pin 'is achieved, and the loading rate ranges from 90% to 120%. The tension-free one-bath dyeing / cross-linking comprises the following steps: pre-treating the filled tension-free loose yarn bundle, performing dyeing and cross-linking through a one-bath two-step method, and finally performing soaping, hot water washing, color fixation / softening one-bath treatment and radio frequency drying. According to the tension-free antifibrillating dyeing method for the lyocell blended yarn, dyeing is uniform, the color difference is small, and the percent of pass is increased.

The invention discloses a textile dyeing defect intelligent detection method and system based on AI vision, and relates to the technical field of textile quality detection.The method comprises the following specific steps that multi-modal image collection is conducted, specifically, a multi-angle industrial camera array and a multispectral light source containing white light, blue light and near-infrared light are deployed at a production line detection station, dynamically matching and collecting the frame rate and the light source brightness through a synchronous control assembly, and synchronously collecting to form a multi-mode original image set; according to the invention, through the combined design of the double-feature separation network and the mutual exclusive attention mechanism, deep mining is carried out respectively for the geometric morphology features of the wrinkles and the color texture features of the dyeing defects, and the mutual exclusive attention mechanism effectively shields an interference channel between the two types of features by generating an exclusive mask weight matrix, so that feature separation is realized, and the detection accuracy is improved. The system can accurately distinguish wrinkles and dyeing defects, and the misjudgment risk is remarkably reduced.

The invention relates to natural dye and green chemical industry, and particularly discloses water-soluble biological indigo blue and a preparation method thereof. The water-soluble biological indigo comprises the following raw material components in parts by weight: 80-90 parts of a biological-based indigo concentrated solution; 0.5 to 1 part of dimethyl sulfoxide; 10 to 15 parts of a solubilizer A; 5-10 parts of a solubilizer B; and 10 to 15 parts of deionized water. According to the invention, the bio-based indigo concentrated solution synthesized by a biological method is used as a raw material, the water-soluble compound is innovatively formed through beta-cyclodextrin inclusion and povidone compounding, and the water-soluble compound has relatively high water solubility; the water solubility of the product is greater than or equal to 50g / L, the stability is excellent, the obtained indigo dye is natural in source, environment-friendly and high in water solubility, secondary pollution of the traditional dye to the environment is avoided, and the indigo dye is suitable for sustainable chemical industry and green dyeing and finishing industries and can be widely applied to the fields of textile dyeing, water-based ink, cosmetic color developing agents, medicines and the like.

The invention discloses a textile dyeing machine facilitating material collection for textile processing, and relates to the technical field of textile processing. A body is included; the mounting frame is mounted in the machine body; the moving plate is connected into the machine body in a sliding manner; the mounting plates are mounted on the two sides of the machine body; the control mechanism comprises a second lifting rod, a rotating assembly is arranged at the bottom of the second lifting rod, a clamping assembly is arranged outside the rotating assembly, and the second lifting rod is used for controlling the positions of the rotating assembly and the clamping assembly in the vertical direction; the material receiving mechanism is connected with the mounting plate, the material receiving mechanism comprises a second sliding block, a fourth push rod is mounted outside the second sliding block, and a hanging rod is mounted outside the fourth push rod. According to the textile dyeing machine facilitating material receiving for textile processing, the purpose of improving the use efficiency of equipment is achieved.

The invention relates to the field of dye chemistry, and discloses an acid dye with high color fastness, a preparation method of the acid dye and application of the acid dye in textile dyeing. According to the dye molecule, a 4-sulfo benzene ring and a 2, 5-dichlorobenzene ring are connected through an azo bridge (-N = N-), and a polysulfonate substituent group (-SO3Na) is introduced to a molecular skeleton to form a symmetric azo conjugated structure. The preparation method comprises the steps of nitration, reduction, sulfonation, diazotization, coupling and the like, the process conditions are mild, and the yield is stable. The obtained dye has a strong absorption peak in the range of 540-560nm, and the molar absorption coefficient epsilon is greater than or equal to 1.0 * 10 < 5 > L.mol <-1 >. Cm <-1 >. Compared with the conventional acid red dye, the dye has the advantages that the light fastness can reach grade 8, the fastness to washing is grade 7 or above, the color is bright, the color layer is uniform, the high dye-uptake can be realized under the low-salt condition, the conductivity of waste liquid is remarkably reduced, and the dye is suitable for dyeing protein fibers such as wool, nylon and silk.

The invention provides a dyeing machine for cloth textiles, and relates to the technical field of textile dyeing equipment, the dyeing machine comprises a dyeing box and a rectangular holding frame, the rectangular holding frame is matched with the top end part of the dyeing box in a sleeving and inserting manner; two transverse guide shafts are symmetrically welded to the rectangular keeping frame, and two longitudinal sliding plates which are arranged at intervals at a long distance are slidably mounted on the two transverse guide shafts; a cloth hanging frame is arranged in the rectangular keeping frame in a sliding mode, two U-shaped guide frames are symmetrically welded to the top side of the cloth hanging frame, and a longitudinal sliding plate is in sliding fit with the U-shaped guide frames in a spring pushing mode; pull rods are symmetrically and rotationally connected between the rectangular driving frame and the cloth hanging frame. Through combined transmission of the single-crank sliding block mechanism and the multi-crank sliding block mechanism, up-and-down and front-and-back reciprocating sliding operation of the cloth hanging frame can be driven and executed by one set of driving unit, so that the situation that driving units need to be arranged for the two sliding operations respectively can be omitted, and the manufacturing cost and power consumption of dyeing equipment can be reduced.

The utility model relates to textile dyeing equipment technical field, concretely relates to a kind of for yarn dyeing's quick penetration dye liquor conveying structure, including charging tank, the one end of charging tank is equipped with conveying pipeline, and the other end of conveying pipeline is equipped with dye vat;Supporting assembly, supporting assembly is installed in the side of conveying pipeline, and supporting assembly is used to support conveying pipeline;Clamping assembly, clamping assembly is installed in the inside of supporting assembly, and clamping assembly is used to clamp conveying pipeline.Compared with prior art, the adjustable supporting assembly and clamping assembly of the present application simplify the installation and disassembly process, improve flexibility and adaptability, avoid the cumbersome operation of traditional bolt fixing mode, and at the same time, the stability and reliability of pipe fixing are enhanced by spring clamping setting.

The invention discloses an antibacterial toxin-removing anhydrous dyeing and finishing powder dye as well as a preparation method and application thereof. The dye adopts a porphyrin structure-containing metal organic framework with a specific aperture as a carrier, copper phthalocyanine and an IR808 photosensitizer are loaded after modification of a silane coupling agent, and copper and zinc ions are introduced through ion exchange. By optimizing a carrier structure, surface modification and a component ratio, the dye has excellent antibacterial property, high dyeing depth and a photocatalytic function. Anhydrous dyeing and finishing are realized by adopting a supercritical carbon dioxide process, and the process is environment-friendly and efficient. The technology solves the problems of serious pollution, single function and the like of the traditional dyeing process, and has important application value in the field of textile dyeing and finishing.

The invention belongs to the technical field of textile dyeing, and particularly relates to an edible plant dyeing method based on ion modified cotton yarn, cation modified cotton yarn serves as a base material, stable fixation of edible plant pigment is achieved through electrostatic adsorption of cation groups and anion pigment, and the method specifically comprises the following steps that S1, the base material is prepared, the method comprises the following steps: weaving a base material by using pure cotton yarns modified by 2, 3-epoxypropyltrimethylammonium chloride, and modifying by immersing 20S-60S pure cotton yarns in a 8%-12% GTA solution according to a bath ratio of 1: 20-1: 30, soaking for 40-60 minutes at a constant temperature of 45-55 DEG C, pre-drying for 15-20 minutes at 80-90 DEG C, and then baking for 2-3 minutes at 120-130 DEG C, so that the zeta potential of the surface of the cotton yarns reaches + 15 mV to + 30 mV; the gram weight of the base material is 450 g / m, the warp density is 80-120 pieces per inch, the weft density is 60-100 pieces per inch, the breaking strength is larger than or equal to 180 N, the elongation at break is larger than or equal to 15%, and no obvious defects exist on the surface. According to the method, stable color fixation is achieved through the ion adsorption effect of the cation modified cotton yarn and the edible plant pigment, tatting jacquard is adopted, chemical color fixing agents and mordants are not needed in the whole process, and the method has safety and excellent dyeing performance.

The application discloses a dyeing boosting agent and a low-temperature salt-free dyeing method for bio-based PLA / regenerated cellulose fiber blended fabric, and relates to the technical field of textile dyeing. A synergistic cross-linking modification system is constructed by using a bio-based small-molecule phenol with double functional groups and a high-density amino polymer. The fabric is pretreated and immersed for modification, a stable ion cross-linking adhesion layer is formed on the surface of the fiber, and then low-temperature dyeing of the electrolyte-free reactive dye is carried out. The process adopts a one-bath one-step method, does not need high temperature, high salt and reduction cleaning procedures, is simple in process, low in carbon and environmentally friendly, can realize synchronous dyeing and uniform color of PLA and regenerated cellulose fiber, effectively improves the fabric dyeing rate and color fastness, and significantly improves the ultraviolet resistance of the product. The application solves the problems of poor uniformity, low color fastness and large pollution existing in the traditional dyeing process, and is suitable for green and efficient production of bio-based blended fabric.

The application provides a dyeing machine for cloth textile, relates to the technical field of textile dyeing equipment, and comprises a dyeing box and a rectangular holding frame, the rectangular holding frame is sleeved with the top end part of the dyeing box, two horizontal guide shafts are symmetrically welded on the rectangular holding frame, two distance-interval arranged vertical sliding plates are slidingly installed on the two horizontal guide shafts, a cloth hanger is slidingly arranged in the rectangular holding frame, two U-shaped guide frames are symmetrically welded on the top side of the cloth hanger, the vertical sliding plates are slidingly matched with the U-shaped guide frames in the form of spring pushing, and a pull rod is symmetrically rotationally connected between the rectangular driving frame and the cloth hanger. Through the combined transmission of the single-crank sliding block mechanism and the multi-crank sliding block mechanism, the up-down and back-and-forth reciprocating sliding operation of the cloth hanger can be driven and executed by one set of driving unit, the driving unit for the above two sliding operations can be omitted, and the cost and power consumption of the dyeing equipment are reduced.

The application discloses a method and system for optimizing a textile dyeing formula, and optimizes a computer theoretical formula by establishing a smart matching point, and improves a one-time matching success rate.The technical scheme is as follows: by establishing a mathematical model, on the basis of realizing computer system fast matching, by taking actual dyeing results in a laboratory or on a production line as the smart matching point, the relationship between the theoretical formula and the actual formula is optimized, and the one-time matching success rate is improved.Furthermore, in combination with an actual sample printing environment, repeated color correction caused by differences in different dyes, dyeing processes and the like can be effectively avoided, and the color matching efficiency and the color matching success rate are obviously improved.

The utility model discloses a steaming device for textile dyeing and finishing processing pretreatment, relates to the technical field of steaming devices, and aims to solve the technical problems that a guide roller structure of a current steaming device is inconvenient to assemble and feed textile fabrics and is relatively poor in operation convenience, and the steaming device comprises a shell, an adjusting mechanism and the textile fabrics, a steam passing box is installed in the middle of the interior of the shell, partition plates are fixed to the two ends of the interior of the steam passing box, a gas collecting ring is arranged in the middle of the interior of the steam passing box and communicates with the partition plates through guide frames, a steaming disc is arranged at an opening in the upper end of the gas collecting ring, and a top cover is clamped to the middle of the upper side of the shell. The number of the adjusting mechanisms is two, the two adjusting mechanisms are installed on the inner sides of the two ends of the shell correspondingly, and driving boxes are arranged on the front sides of the two ends of the shell correspondingly. The adjustable guide roller of the steaming device has the advantages that the textile fabric can be conveniently assembled and guided in, and the operation difficulty is reduced.

The utility model relates to the field of textile dyeing, and discloses a dyeing steel cup for testing, which comprises a cup body, a cup cover, an upper cover, a cover body, a semicircular opening formed in the bottom of the cup cover, a bearing disc used for laying an adsorbent and uniformly provided with air holes in the bottom, a baffle plate, a connecting column, a transverse baffle rod, a threaded hole and a limiting bolt. After dyeing is completed, the limiting bolt is rotated to relieve limiting on the transverse blocking rod, then the transverse blocking rod is rotated to drive the connecting column and the bearing disc to rotate until the bearing disc and the opening are completely overlapped, then the limiting bolt penetrates through the transverse blocking rod to be connected into another threaded hole in a threaded mode, the bearing disc is fixed again, and harmful gas with the high temperature rises; and the air holes are adsorbed by the adsorbent on the bearing disc. The utility model has the advantages and effects of avoiding the diffusion of harmful gas and ensuring the safety and cleanness of the dyeing environment.

The present application relates to wastewater treatment equipment technical field, more specifically discloses a kind of wastewater treatment equipment after textile dyeing, including first positioning assembly, the both sides of first positioning assembly are fixedly connected with positioning transmission assembly, the top of the side of installation positioning assembly away from first positioning assembly is fixedly connected with support positioning plate, the bottom of the side of installation positioning assembly away from first positioning assembly is fixedly connected with support positioning column;The present application when treating wastewater after textile dyeing, first wastewater needing to be treated is injected from the top of equipment, then under the action of gravity, suspended solids in wastewater are intercepted and filtered, and simultaneously driven by drive piece on the telescopic guide assembly connected with support positioning column, transmission roller is rotated, in turn, drive conveying screen to rotate slowly, then by installing cleaning assembly on the path of conveying screen movement, it can be realized that equipment is cleaned to filter screen during operation.

The present application belongs to the field of textile dyeing and finishing, and relates to a dyeing method for industrial preparation of gauze, comprising the following steps: 1) dip dyeing and hot baking of silk fabric (silk white blank); 2) performing color fixing treatment on the dip-dyed / hot-baked fabric by using an enzyme treatment solution; 3) repeatedly performing step 1) and step 2) on the fabric obtained in step 2) in sequence, and the number of repetitions is 1-3 times, to obtain a gauze dyeing product. The method is simple and easy to implement, has high efficiency, and controllable cost, and can be used for industrial preparation of gauze products.

This invention relates to the technical field of mixing equipment, and in particular to a color mixing and tinting device for dyeing textiles in light industry. The device includes a color mixing chamber and a feed pipe. A discharge pipe and a discharge valve are installed at the bottom of the color mixing chamber. The feed pipe is inserted into the color mixing chamber through the top of the chamber. A first opening is provided on the side wall of the feed pipe inside the color mixing chamber, and the bottom of the feed pipe is sealed. A rotating ring is provided inside the color mixing chamber, and multiple separating rods are arranged in a ring at the bottom of the rotating ring. This device can achieve multi-form agitation and mixing of the paint, effectively improving the functionality of the equipment, increasing the uniformity of paint mixing, and thus improving the color mixing quality and accuracy.

This invention relates to the field of textile dyeing and finishing technology, specifically to a dispersing and leveling agent and its application in the dyeing and finishing of high-proportion spandex blended fabrics. The dispersing and leveling agent comprises the following components by mass percentage: 50%–56% polyethylene glycol fatty acid ester, 6%–12% low-foaming EO / PO block polyether, 5%–8% branched isomeric alcohol polyoxyethylene ether, 5%–8% polyol fatty acid ester, 1%–4% low molecular weight sodium polyacrylate, and the balance being deionized water. The dispersing and leveling agent prepared by this invention not only significantly improves the dispersion stability of dyes but also effectively enhances the lubrication and protection of spandex fibers, thereby effectively suppressing defects such as color spots and patches caused by fiber stress release during the dyeing process. It is particularly suitable for polyester-spandex blended fabrics with a spandex content as high as 25%–40%.

The invention relates to the technical field of textile dyeing, in particular to a dyeing device for low-temperature enzyme-oxygen refining of knitted fabric, comprising a dyeing tank, a dye liquor adding structure and a circulating filtering structure, the dye liquor adding structure is arranged on one side of the dyeing tank and communicated with the dyeing tank, and the circulating filtering structure is arranged on the other side of the dyeing tank; the circulating filtering structure is connected between the dyeing pool and the dye liquor adding structure in series, a spraying assembly and a cloth guide roller are arranged on the dyeing pool, the spraying assembly is arranged on the upper portion of the interior of the dyeing pool and communicated with the dye liquor adding structure, the spraying assembly is used for spraying dye liquor to knitted fabric in the dyeing pool, and the cloth guide roller is communicated with the dye liquor adding structure. The cloth guide roller is arranged in the dyeing pool and located below the spraying assembly, and the cloth guide roller is used for guiding knitted cloth to be conveyed in the dyeing pool. The method has the following effects that the contact uniformity of the dye liquor and the knitted fabric is improved, and finally the appearance quality of the knitted fabric is improved.

This invention discloses a wastewater treatment device for textile dyeing, belonging to the technical field of wastewater treatment devices. It includes a wastewater tank, with a treatment chamber fixedly installed on the right side of the wastewater tank and connected to it. A discharge pipe is fixedly installed at the bottom of the treatment chamber, and an electromagnetic valve is fixedly installed on the discharge pipe. Vertical installation slots are provided on the inner walls of both the front and rear ends of the wastewater tank. A filter screen is installed inside the wastewater tank, with a handle fixedly installed at the top of the filter screen. Trapezoidal strips are fixedly installed at both the front and rear ends of the filter screen, and each set of trapezoidal strips is slidably connected to the corresponding installation slot. Installation plates are longitudinally fixedly installed on both sides of the installation slots at the top of the wastewater tank, and cleaning mechanisms are installed on the installation plates. This invention solves the technical problems of existing textile dyeing wastewater, such as easy clogging of subsequent treatment units by flocculent matter, poor reagent addition and mixing effects, and the need for frequent shutdowns for disassembly and cleaning of the pretreatment screen.

The present application belongs to the field of textile dyeing and finishing technology, and provides an antibacterial and shrink-resistant finishing method for wool fiber products based on catalytic grafting and crosslinking, comprising the following steps: dissolving potassium hydroxide in ethanol to prepare an alkali-alcohol solution, immersing the wool fiber product in the alkali-alcohol solution to obtain a pretreated wool fiber product; synthesizing modified amino macromolecules containing disulfide bond side groups by using lipoic acid and amino macromolecules as main raw materials; immersing the pretreated wool fiber product in the modified amino macromolecule aqueous solution, and then immersing it in silver nitrate to obtain an antibacterial and shrink-resistant wool fiber product. The antibacterial and shrink-resistant finishing method forms a modified amino macromolecule crosslinking network layer on the surface of the wool fiber product, does not damage the fiber strength, and gives the wool a shrinkage-resistant effect; the modified amino macromolecule has antibacterial, reducing and coordination combination properties with nano-silver, promotes the reduction and deposition of silver ions on the surface of the wool fiber, and improves the antibacterial effect of the wool fiber product.

The utility model relates to the technical field of textile dyeing, in particular to a cone yarn steaming processing device, which comprises a steaming mechanism, a yarn feeding mechanism, a yarn discharging mechanism, a yarn feeding mechanism and a yarn discharging mechanism, the plurality of cylinders are fixed in the cart at equal intervals; the bobbin placing mechanism is fixed in the steam kettle, and can be used for placing the bobbin yarns at equal intervals, and the bobbin yarns can be conveniently replaced; and the distance adjusting mechanism is fixed at the top of the steam kettle and can separate the cone yarns which are tightly attached together and ensure the distance. According to the utility model, the cylinder of the cart is aligned to one end of the arc-shaped rod, so that a worker can push all cone yarns in the cylinder to the arc-shaped rod by using the push rod to complete installation, the worker does not need to place the cone yarns one by one, and the cone yarns can be placed only by using the push rod to push the cone yarns, so that the working efficiency is effectively improved, the downtime is greatly reduced, and meanwhile, the labor intensity is reduced.

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.

The invention relates to the technical field of textile dyeing, and discloses a spinning yarn dyeing device which comprises a dyeing barrel, a rotating structure is arranged at the bottom end of the dyeing barrel, an inner barrel is fixedly installed at the axis in the dyeing barrel, the outer wall of the inner barrel is sleeved with a base plate, the base plate is located at the bottommost end in the dyeing barrel, and a plurality of yarn barrel columns are fixedly installed on the top face of the base plate. The outer wall of each set of bobbin column is sleeved with a loading disc, the loading discs are located on the top face of the base plate, inserting openings are formed in the two sides of each loading disc, threaded holes are formed in the faces, close to the bobbin columns, of the inserting openings, the interiors of the inserting openings are connected with limiting plates through bolts, and the top faces of the limiting plates are jointly and fixedly connected with a top plate. According to the spinning yarn dyeing device, the detachable loading disc and the limiting plate are arranged outside the bobbin column, after dyeing is completed, the limiting plate and the loading disc are directly taken out from the outside of the bobbin column together, the yarn bobbins can be completely detached, and the problem that workers manually detach the yarn bobbins one by one, and consequently the working efficiency is low is solved.

The invention discloses a folium artemisiae argyi dyed multifunctional cotton fabric and a preparation method thereof, and belongs to the technical field of textile dyeing and finishing. The method comprises the following steps: firstly, carrying out reflux extraction on folium artemisiae argyi by adopting a 95% ethanol solution to efficiently obtain a functional dye with water-soluble and fat-soluble pigments; then, the cotton fabric is pretreated with alum as a mordant, and the pH condition is optimized to enhance binding sites of fibers and dye; and finally, dyeing at specific pH and temperature. The method successfully solves the key technical problem of poor washing fastness in natural dye dyeing, and synergistically endows the cotton fabric with excellent anti-ultraviolet performance (UPF value up to 160.3) and remarkable antibacterial function. The process disclosed by the invention is green and environment-friendly, realizes integration of dyeing and multifunctional finishing of the cotton fabrics, and has a good application prospect.

The invention belongs to the technical field of textile dyeing and finishing production, and discloses a cationic color fixing agent and a preparation method thereof.The cationic color fixing agent is obtained by conducting self-polymerization on dimethyl diallyl ammonium chloride and then conducting cross-linking, and in the cross-linking process, the mass ratio of a dimethyl diallyl ammonium chloride self-polymer to a cross-linking agent is 70-80: 1-4; the cross-linking agent is selected from at least one of pentaerythritol triallyl ether, methyl triallyl silane, tetraallyl silane and triallyl (phenyl) silane, the molecular weight of the cationic monomer is firstly increased by synthesizing the self-polymer, and then cross-linking is performed, so that the gel risk is reduced.

The application discloses a treatment method of high-concentration printing and dyeing wastewater, which comprises the following steps: uniformly mixing a reaction catalyst with the high-concentration printing and dyeing wastewater, then transferring to a hydrothermal reaction kettle (PTFE lining) to react, and obtaining a transparent aqueous solution and black precipitate at the bottom after the reaction is completed. It is detected that the removal rate of the dye is greater than 99% and the removal rate of the colority is greater than 95% after the hydrothermal reaction. The obtained clear brine solution after the hydrothermal reaction can be returned to preparation of dye liquor or used as a washing solution in a washing process in a textile dyeing and finishing process, and the obtained black solid is a dye-derived carbon material, which can be used in multiple fields such as electrochemical energy storage, catalysis and adsorption. The application essentially provides a method for direct treatment and resource utilization of high-concentration and high-salinity printing and dyeing wastewater, which can realize reuse of brine in wastewater and utilize waste heat of the wastewater, and has important significance for resource utilization of textile printing and dyeing industrial wastewater.

The present application belongs to the field of textile dyeing and finishing technology, and particularly relates to a production method of pure cotton imitated hemp fabric, comprising the following processes: spinning, singeing, desizing, mercerizing, super softening, tentering, super softening, and preshrinking, wherein the spinning process uses 40% pre-spinning recycled cotton and 60% fine cotton to blend, and cotton imitated hemp slub yarn is spun, because the recycled cotton fiber is shorter, the slub length is shorter than the conventional slub, the slub is naturally uniform, and is closer to the appearance of hemp, the fabric has the hand feeling and appearance of hemp, and the wearing comfort is improved by combining the weave, specification design, and finishing process.