584 results about "Textile printing" patented technology

The invention relates to the technical field of damping and shock absorption, in particular to a damping-adjustable composite shock absorption system for textile printing and dyeing equipment, which comprises a bottom plate and a top plate, a first shock absorption unit and a movable plate are mounted between the bottom plate and the top plate, and a first buffer spring is fixedly connected between the top plate and the movable plate; a second damping unit is installed between the movable plate and the bottom plate. During damping, vibration is buffered through telescopic deformation of a first buffer spring and a second buffer spring, oil liquid is pushed to flow in backflow oil pipes through vertical movement of a first piston rod, vibration energy is consumed through friction force between the oil liquid and the backflow oil pipes, and vibration of a machine body is restrained; the different backflow oil pipes are switched to be communicated with the oil storage cavity through the switching mechanism, the longer the backflow oil pipes are, the larger the on-way resistance when oil passes through the backflow oil pipes is, the higher the damping force is, and the damping device can be conveniently installed on textile printing and dyeing equipment with different vibration intensities for damping.

The invention provides a method and system for salt separation, evaporation and crystallization of printing and dyeing wastewater, and the method comprises the following steps: sequentially carrying out multi-stage synergistic pretreatment on textile printing and dyeing wastewater to remove suspended solids, degrade organic matters and reduce hardness; the pretreated wastewater is subjected to membrane salt separation treatment, and preliminary separation of salt is achieved through reverse osmosis pre-concentration and nanofiltration salt separation; and respectively carrying out evaporative crystallization treatment on the separated high-concentration salt solution to obtain high-purity sodium sulfate and sodium chloride products. According to the method, the salt recovery rate and the product purity are remarkably improved, the energy consumption and the operation cost are reduced, meanwhile, the problems that in traditional printing and dyeing wastewater treatment, salt is difficult to separate, and the crystallization purity is low are solved, and an innovative solution is provided for high-valued resource recovery of industrial wastewater.

The invention relates to the technical field of textile printing and dyeing, in particular to a setting machine cropping moisture content control method and system based on MPC. An MPC model is constructed, and the MPC model comprises the steps that actually-measured and preset water content and the first control parameter state vector serve as input, and predicted water content is obtained; minimizing the difference value between the predicted water content and the preset water content as a target; solving and optimizing the control increment by using the optimization matrix and sequential quadratic programming; and performing action regulation and control on an execution mechanism by utilizing the optimal control increment. The invention solves the problems of insufficient detection precision, hysteresis and poor interference resistance in the existing single temperature feedback control of the moisture content of the fabric.

The invention discloses a wool fiber dyeing method based on an electrostatic spraying technology, and belongs to the field of spinning. The method comprises the following steps: firstly, preparing electrostatic dye liquor containing acid dye; then, the wool fabric is subjected to wetting pretreatment with water; fixing the pretreated wool fabric on a collecting device, and uniformly spraying the dye liquor onto the wool fabric through an electrostatic spraying technology; and finally, carrying out color fixation treatment through open-width steaming to obtain the wool fiber material dyed by the acid dye. The dyeing method greatly reduces the use of water resources and dyeing assistants, greatly reduces the generation of printing and dyeing wastewater, is a green and environment-friendly wool fiber dyeing technology, and has huge application potential in the textile printing and dyeing industry.

The invention belongs to the technical field of textile printing and dyeing, relates to an efficient reactive dye ink-jet dyeing process and application, and aims to solve the problems that the traditional dyeing proofing process is tedious, the color difference of front and back surfaces of ink-jet dyeing is large, and the dye utilization rate is low. The process comprises the following steps: firstly, padding a fabric in an aqueous solution until the pick-up rate is controlled to be 60-120%, and carrying out ink-jet printing on reactive dye ink (the viscosity is 3-10 mPa.s and the surface tension is 20-50 mN / m) in a wet fiber swelling state; after printing, a 1%-10% alkali solution is immediately padded to promote permeation of the dye; and then pre-drying at 60-70 DEG C, steaming with saturated steam at 100-102 DEG C for 5-15 minutes, and washing with water to complete color fixation. According to the technology, the K / S ratio of the front face and the back face of the dyed fabric is larger than or equal to 0.95, the color fastness of the dry friction level 4-5 or above, the color fastness of the wet friction level 4-5 and the color fastness of the soaping level 4-5 are achieved, and the technology is suitable for green efficient dyeing of small-batch multi-variety fabric.

The invention provides an intelligent textile printing and dyeing sewage treatment method and system based on edge computing, and relates to the technical field of textile printing and dyeing sewage treatment.The method comprises the steps that edge computing nodes are deployed on multiple treatment devices to collect water quality parameters, a neural network is trained through historical data, and the network structure is optimized according to the fluctuation amplitude; the corresponding relation between the water quality parameters and the equipment efficiency is calculated to predict abnormity, the particle swarm optimization is combined to optimize the operation parameters, and the adjustment strategy is determined based on the effluent standard-reaching rate, the energy consumption and the cost, so that the intelligent treatment of the textile printing and dyeing sewage is realized, the treatment efficiency and the effluent quality are improved, and the energy consumption and the operation cost are reduced.

The invention provides an efficient intelligent short-process water-saving printing and dyeing control method and system. The method belongs to the technical field of textile printing and dyeing, and comprises the steps: carrying out the real-time collection of key parameters in the printing and dyeing process through a high-precision sensor, and transmitting the data collected by the sensor to a cloud data center in real time through the Internet of Things; mining historical printing and dyeing data through big data and a machine learning algorithm, and establishing a printing and dyeing process model; based on real-time sensor data and the printing and dyeing process model, the printing and dyeing effect is predicted in real time, and printing and dyeing parameters are automatically adjusted according to the prediction result; key parameters are collected in real time through a high-precision sensor, historical data are mined in combination with big data and a machine learning algorithm, and an accurate printing and dyeing process model is established, so that the printing and dyeing effect can be predicted in real time, the printing and dyeing parameters are automatically adjusted according to the prediction result, and the printing and dyeing efficiency and quality are improved.

The invention relates to the technical field of waste silk recycling, in particular to a textile printing and dyeing wastewater treatment device and method.The textile printing and dyeing wastewater treatment device comprises a treatment pond, a partition plate is fixedly installed in the treatment pond to divide the interior of the treatment pond into a filtering pond and a settling pond, and a waste silk filtering assembly is rotatably installed in the filtering pond; a material guide assembly is rotationally mounted on the bottom surface in the filter tank; a mixing tank is arranged on the outer side, close to the filter tank, of the treatment tank. Through the synergistic effect of the waste silk filtering assembly and the material guiding assembly, solid waste silk in waste water can be efficiently separated and automatically recycled, the rotary type filtering plates automatically switch the working state in the continuous filtering process, after one filtering plate completes filtering operation, the filtering plate can be driven by a servo motor to rotate to the vertical position, and the waste silk in the waste water can be automatically recycled. At the moment, a winding needle in the waste silk recycling assembly moves back and forth along the surface of the filter plate to recycle waste silk left on the surface of the filter plate, the problem that a traditional fixed filter screen is prone to being blocked is solved, and automatic recycling of the waste silk can be achieved.

The invention relates to the technical field of waste heat recovery, in particular to a textile printing and dyeing equipment waste heat exchange device which comprises a shell assembly, a heat exchange module, a heat exchange module and a heat exchange module. The heat exchange module comprises a plurality of outer shells and a heat exchange core, each outer shell comprises two upper shells, two middle shells and two lower shells which are arranged from top to bottom, and the heat exchange core comprises a plurality of liquid outlet plates, a plurality of heat exchange plates and a plurality of liquid inlet plates which are arranged from top to bottom; the two ends of the upper shell, the two ends of the lower shell, the two ends of the liquid outlet plate and the two ends of the liquid inlet plate are provided with through holes for air and liquid to flow. The second through groove and the first through groove are driven by the flow blocking rod to be staggered to block the fluid channel, then the middle shell is ejected out of the position between the upper shell and the lower shell, at the moment, the middle shell can be taken out with the heat exchange plate through the groove to be replaced, the heat exchange plate can be cleaned and replaced without shutdown, and therefore the purpose of facilitating online disassembly and cleaning is achieved.

The present invention relates to the field of multi-stage wastewater treatment, specifically a textile and textile printing and dyeing wastewater treatment device and method. It includes a treatment box, a drug barrel and a drug-adding and mixing mechanism; the treatment box includes a box body and a diverter with two ends integrally connected to the middle and bottom of the box body, a filter assembly is arranged inside the diverter, the top of the box body is connected to a water inlet pipe, the bottom side is connected to a drain pipe, and a control valve is arranged on the drain pipe; the drug barrel is arranged on the top of the treatment box; the drug-adding and mixing mechanism includes a drug delivery barrel vertically slidingly arranged on the drug barrel, a lifting mechanism for driving the drug delivery barrel to rise and fall, a lifting member arranged at the bottom end of the drug delivery barrel, and a plurality of baffles rotatably arranged on the lifting member, the drug delivery barrel has a drug inlet hole and a drug outlet hole located below the drug inlet hole, and the outer periphery of the lifting member has a plurality of flow channels. The present invention can cyclically carry out multiple mixing, flocculation and filtration treatments of wastewater and drugs, and finally discharge the effectively treated wastewater, thereby ensuring the quality of wastewater treatment.

The invention provides a yarn color prediction method and system based on multi-modal learning, and belongs to the technical field of textile printing and dyeing, and the method comprises the steps: firstly, comprehensively collecting blended cotton fiber data, process parameters, fiber color data, yarn appearance images and color data in yarn production, and carrying out the alignment, cleaning and normalization preprocessing of the data; then, a color prediction network composed of a feature extraction module, a compensation fusion module and an output module is constructed, after main modal feature extraction and preliminary prediction are completed through 1D-CNN, auxiliary modal features are extracted with the help of VGG16, and correlation is calculated through the compensation fusion module to achieve compensation for preliminary prediction; and finally, selecting a CIEDE2000 chromatic aberration formula as a loss function, and optimizing model parameters in combination with an Adam optimizer. According to the method, by means of fusion of multi-modal data, a unique fusion compensation strategy and a self-adaptive complementary fusion mechanism, the precision, accuracy and stability of yarn color prediction are remarkably improved, and a more reliable technical scheme is provided for color prediction of colored spun yarns in the textile printing and dyeing industry.

The invention relates to the field of wastewater multi-stage treatment, in particular to a woven fabric printing and dyeing wastewater treatment device and method. The device comprises a treatment box, an agent barrel and an agent adding and mixing mechanism, the treatment box comprises a box body and a shunting part with two ends integrally communicated with the middle and the bottom of the box body respectively, a filtering assembly is arranged in the shunting part, the top end of the box body is communicated with a water inlet pipe, and the side surface of the bottom end is communicated with a drainage pipe which is provided with a control valve; the medicament barrel is arranged at the top of the treatment box; the medicine feeding and mixing mechanism comprises a medicine conveying barrel vertically arranged on the medicine barrel in a sliding mode, a first lifting mechanism driving the medicine conveying barrel to ascend and descend, a lifting piece arranged at the bottom end of the medicine conveying barrel and a plurality of blocking plates rotationally arranged on the lifting piece, the medicine conveying barrel is provided with a medicine inlet hole and a medicine outlet hole located below the medicine inlet hole, and a plurality of circulation channels are formed in the periphery of the lifting piece. According to the invention, mixed flocculation and filtration treatment of wastewater and chemicals can be circularly carried out for multiple times, and finally, the effectively treated wastewater is discharged, so that the wastewater treatment quality is ensured.

The invention provides a polycarbonate polyether sulfate salt surfactant as well as a preparation method and application thereof, and belongs to the technical field of surfactants. The polycarbonate chain segment endows the polymer with certain rigidity and stability, the polyether chain segment provides good hydrophilicity and flexibility, and the sulfate salt group enhances the surface activity of the polymer. The polycarbonate polyether sulfate salt surfactant provided by the invention is strong in emulsibility, good in low-temperature solubility and strong in capability of reducing surface tension at low concentration, a rigid structure of a polycarbonate chain segment can be more easily decomposed by microorganisms, environmental residues are reduced, and the surfactant is environment-friendly. The method can be used in the fields of personal care products, household cleaning products, textile printing and dyeing assistants, coating and ink assistants or oil displacement agents for oil fields.

The invention relates to the technical field of textile chemicals, in particular to an electrolyte-resistant printing thickening agent for improving the coloring effect and a preparation method thereof.The electrolyte-resistant printing thickening agent is prepared from, by weight, 10-20 parts of methacrylic acid, 15-30 parts of triethanolamine, 0.1-0.5 part of N, N '-methylene bisacrylamide, 4-8 parts of functional monomers and 2-5 parts of organic modified nano bentonite. 3-6 parts of an emulsifier, 0.1-0.6 part of sodium hydrogen sulfite, 0.1-0.6 part of sodium persulfate, 8-15 parts of an oil-phase solvent, 2-5 parts of a reverse-phase emulsifier and 30-50 parts of water; the functional monomer is prepared from p-styrene propanesulfonic acid, 2-acrylamide-2-methyl propanesulfonic acid and triphenylethyl phenol polyoxyethylene ether methacrylate according to the weight ratio of (3 to 5) to (1 to 2) to 1. According to the electrolyte-resistant printing thickening agent capable of improving the coloring effect, through matching and combination of the raw materials, the electrolyte resistance of the thickening agent can be improved, and the coloring effect in textile printing is improved.

The invention belongs to the technical field of textile printing and dyeing, and particularly relates to a whitening method of pure cotton spandex core-spun yarn. Comprising the following steps: (1) bleaching and increasing one bath: putting the pure cotton spandex core-spun yarn into a dyeing container, adding a first-time bleaching and increasing one bath treatment liquid, and discharging the liquid after heating treatment; adding hot water, preserving heat and discharging liquid; (2) second-time bleaching and first-bath increasing: adding a second-time bleaching and first-bath increasing treatment liquid into the main cylinder, and discharging the liquid after heating treatment; adding hot water, preserving heat and discharging liquid; (3) direct whitening: adding direct whitening treatment liquid into the main cylinder, and discharging the liquid after heating treatment; adding normal-temperature water, washing once, and discharging liquid; adding normal-temperature water again, adding an auxiliary agent, preserving heat and discharging liquid; according to the method, the pure cotton spandex core-spun yarn is subjected to special process treatment, then the yarn is treated through the bleaching and increasing one-bath process and direct whitening, the process parameters such as the use amount of auxiliaries, the temperature and the time used in the bleaching and increasing one-bath process are optimized, and then the ultra-high whiteness of the pure cotton spandex core-spun yarn is achieved.

The invention relates to the technical field of textile printing and dyeing quality detection and industrial automation control, in particular to a textile color difference detection method based on image detection, which comprises the following steps: acquiring a fabric design file and yarn spectral data of a to-be-detected textile, and constructing a noisy-point-free ideal reference image; generating a theoretical damaged simulation image containing preset defect features; constructing a real observation and theoretical deduction residual matrix; comparing the structural similarity value with a preset judgment threshold: when the structural similarity value is greater than the preset judgment threshold, judging that the textile has real chromatic aberration, and generating corresponding production regulation and control instruction data; otherwise, judging that the difference is derived from environmental noise, generating a defect-free confirmation signal and recording a detection log; according to the method, the problem of reference deviation caused by dependence on physical sample cloth in the traditional technology is solved, the influence of weaving flaws, stains or warp and weft density fluctuation possibly existing in the sample cloth on the detection result is eliminated, and the purity and objectivity of the detection reference are ensured.

The present invention belongs to the technical field of textile printing and processing. The present invention discloses a digital direct injection printing process for two-acetate fiber without steaming and washing. The digital direct injection printing process for two-acetate fiber of the present invention comprises the following steps: sizing treatment, pre-drying, inkjet printing and baking are sequentially carried out on a two-acetate fiber grey cloth to obtain an inkjet printed fabric. The present invention only needs to complete the printing of the acetate fiber grey cloth through sizing treatment - pre-drying - inkjet printing - baking, without steaming. During the baking process, the dye ink quickly diffuses into the acetate fiber to complete the coloring process. The solid content of the thickener is low, and there is no need for water washing after printing, and the baking time is short, which greatly saves resources and energy.

The present invention discloses a nano-calcium carbonate modified polyacrylate emulsion and a preparation method thereof. The emulsion is prepared from the following raw materials in parts by weight: 30-65 parts of an acrylate mixed monomer, 8-30 parts of a functional monomer, 0.1-1 parts of a modified nano-calcium carbonate emulsion, 1-5 parts of a composite emulsifier, 0.08-0.65 parts of an initiator, 2-4.5 parts of liquidambar resin, 0.02-0.2 parts of a chain transfer agent, 0.1-5 parts of a pH regulator, and 100-155 parts of deionized water. The nano-calcium carbonate modified polyacrylate emulsion can be used as a water-based coating, water-based ink, an environmentally friendly adhesive, textile printing and dyeing, leather finishing, building cement mortar, and as a functional material in other fields. The emulsion has the characteristics of fast film formation speed, good water resistance, strong adhesion, fast drying speed, simple process, wide applicability, and ease of industrial production.

The invention relates to the technical field of textile printing and dyeing wastewater treatment, and discloses textile printing and dyeing wastewater treatment equipment and a working method.The textile printing and dyeing wastewater treatment equipment comprises a first treatment pond and a second treatment pond, and a sampling detection mechanism is arranged on the right side in the second treatment pond; the sampling detection mechanism comprises a connecting cylinder pipe, an observation transparent window, a water outlet cylinder, a U-shaped frame II, an air cylinder and a sealing movable plate; and the outer surface of the connecting cylinder pipe is fixedly mounted in the first treatment tank. According to the textile printing and dyeing wastewater treatment equipment and the working method, by using a second fixing plate, a second electric telescopic rod and a bearing stop block, the position of the bearing stop block in the second treatment tank can be lifted, and the effect of sampling, discharging and detecting the textile printing and dyeing wastewater after color removal can be achieved; therefore, the problem of how to carry out sampling detection in the decoloring process is solved, the effect of carrying out adaptive change feeding on the decoloring agent according to the actual decoloring effect can be achieved, and the use of the decoloring agent is reduced.

The invention belongs to the technical field of textile printing and dyeing, and relates to a wool vat dye dyeing process based on high-alkalinity low-temperature dyeing. The technology comprises the following steps: dissolving vat dye, a penetrant, Na2SO4 and sodium hydrosulfite in water, adjusting the pH value, and carrying out a reduction reaction to obtain dye liquor; immersing the wool textile into the dye liquor for dyeing, and maintaining the pH during dyeing; washing the wool textile with water, then adjusting the pH value of the H2O2 aqueous solution, and immersing the wool textile for oxidation treatment; sodium hydrosulfite and NaOH are dissolved in water to obtain a cleaning solution, and the wool textile is immersed in the cleaning solution for reduction cleaning treatment. Wool disulfide bond breakage and fiber swelling are promoted under the alkaline condition, dye is fully permeated at the low temperature, dyeing uniformity is ensured, color fastness is improved, the dye utilization rate is increased, the color vividness, saturation and stability are improved, the light fastness reaches the level 4-5, and wool medium-color and dark-color dyeing of the vat dye is achieved.

This invention provides a phosphorus-free, multifunctional, environmentally friendly scouring agent, its preparation method, and its application, belonging to the field of textile printing and dyeing technology. The surfactants used in this invention (including 2-ethylhexanol alkyl glycoside, 2-propylheptanol alkyl glycoside, 2-propylheptanol xyloside, and isomeric tridecyl alcohol ether carboxylic acid) are all nonionic surfactants. The resulting phosphorus-free, multifunctional, environmentally friendly scouring agent is easily soluble in water, acid-resistant, resistant to high-concentration strong alkalis, hard water-resistant, low-foaming, and has strong penetrating power. It is widely applicable to cotton and its blended textile processes, achieving excellent whiteness and wicking effect in conventional annealing / scouring / bleaching processes. It contains no alkylphenol polyoxyethylene ethers or organophosphates, causing no environmental pollution and simplifying and making textile pretreatment processes more environmentally friendly.

The application provides a textile printing and dyeing auxiliary proportioning optimization method and system based on digital twinning, relates to the technical field of textile printing and dyeing, and comprises the following steps: rendering an initial cloth printing and dyeing twinning model by using a cloth feature data set to obtain a cloth printing and dyeing twinning model; based on the cloth printing and dyeing twinning model, performing auxiliary proportioning scheme optimization by using a scheme evaluation function to meet the constraint of expected printing and dyeing quality, and determining an optimized proportioning scheme set; and respectively performing sampling printing and dyeing tests according to the optimized proportioning scheme set, and evaluating and determining an optimal proportioning scheme to perform printing and dyeing operations on target cloth. The application can solve the technical problem that the existing printing and dyeing auxiliary proportioning method has poor accuracy and precision of auxiliary proportioning scheme setting due to the inability to set a suitable auxiliary proportioning scheme according to the actual state of the cloth after pretreatment, and causes uneven overall printing and dyeing quality of cloth, and can improve the reliability and stability of cloth dyeing, and achieve the effect of improving the overall printing and dyeing quality of cloth.

The invention belongs to the technical field of production control, and provides a dyeing control method and device for textile printing and dyeing. Acquiring real-time printing and dyeing process parameters and historical printing and dyeing record data of printing and dyeing equipment corresponding to the target textile; constructing a parameter fluctuation feature set based on historical printing and dyeing record data, generating a random fluctuation signal set based on the parameter fluctuation feature set, and performing analogue simulation based on the random fluctuation signal set by taking real-time printing and dyeing process parameters as an initial state to obtain a virtual process parameter chain; on the basis of the virtual process parameter chain, the printing and dyeing duration corresponding to the target textile and the textile attribute, color difference deviation data are predicted; and optimizing and adjusting the real-time printing and dyeing process parameters based on the chromatic aberration deviation data, and dyeing the target textile according to the optimized and adjusted target printing and dyeing process parameters. The color difference caused by control deviation and dynamic disturbance can be effectively counteracted, the dyeing uniformity and batch consistency are improved, the rework cost is reduced, and the method is suitable for various textile printing and dyeing scenes.

The application relates to a preparation method and application of a performance-adjustable reactive cationic polymer, and belongs to the field of textile printing and dyeing. The preparation method of the performance-adjustable reactive cationic polymer comprises the following process steps: mixing an epoxy reactive monomer with concentrated hydrochloric acid, reacting for a certain time under ice bath, and adjusting the pH of the reaction system to be neutral; adding a cationic monomer into the above reaction system, simultaneously adding a phase transfer catalyst or an organic solvent, adding an initiator drop by drop under a nitrogen atmosphere, stirring to carry out a free radical polymerization reaction, naturally cooling after the reaction is completed, and drying to obtain the reactive cationic polymer. According to the application, salt-free high-color-yield dyeing of reactive dyes can be realized when the amount of the cationic polymer is very low.

The utility model discloses an environment-friendly textile printing and dyeing wastewater purification device, which belongs to the technical field of textile wastewater purification, and adopts the technical scheme that the environment-friendly textile printing and dyeing wastewater purification device comprises a treatment tank, a water passing frame is arranged on the inner side of the treatment tank, baffles are fixedly connected to the front side and the rear side of the water passing frame, and filter assemblies are arranged on the two sides of the water passing frame; a water passing net is arranged at the bottom of the water passing frame, an isolation plate is fixedly connected to the inner side of the water passing frame, the treatment pond is arranged as a wastewater purification container, the arranged water passing frame can horizontally move along the inner side of the treatment pond, and filtration can be carried out through the filtering assembly while the water passing frame moves; when water flow passes through the filtering assembly, the baffle is pushed along the rotating shaft, floccules and large-size impurities in the water flow can flow into the water passing frame through the circulating groove together, movement of the water passing frame is stopped periodically, the impurities, the floccules and the like can be precipitated in the container net bag, and at the moment, the container net bag can be taken down to be cleaned or replaced.

To provide an inkjet printing apparatus, an inkjet printing method, and a program capable of suppressing bleeding of ink and reduction in surface density even when a penetrant is used.SOLUTION: The ink jet textile printing apparatus P includes a plurality of heads that discharge the penetrant liquid and the color ink onto the fabric 3, and the control unit 6 that functions as a discharge control unit that controls the discharge of the penetrant liquid by the heads. When the amount of the color ink applied is A [g / m2] and the amount of the penetrant applied is B [g / m2], the control unit 6 controls the discharge of the penetrant from the head so as to satisfy the following Expression (1) in a case in which the amount of the color ink applied and the amount of the penetrant applied in the first color ink discharge region are A1 and B1, respectively, the amount of the color ink applied and the amount of the penetrant applied in the second color ink discharge region are A2 and B2, respectively, and A1> A2. B1 <B2 (1) SELECTED DRAWING: Figure 1

The invention belongs to the field of textile printing and dyeing processing, and discloses a cellulose material loose fiber indigo continuous dyeing method, which comprises the following steps: carding cellulose material loose fibers into a fiber layer through a web former, padding the fiber layer in indigo leuco body dye liquor through a continuous loose fiber dyeing machine, then feeding into a continuous oxidation reaction box, and carrying out continuous oxidation reaction on the fiber layer. Oxidation color development and fixation of the indigo leuco body are achieved in the continuous oxidation reaction box, and the dyeing process is completed; the continuous oxidation reaction box comprises a cuboid box body as well as a conveying system, a reaction supply system and a negative pressure suction filtration system which are positioned in the box body; the conveying system comprises a crawler-type conveying belt; the negative-pressure suction filtration system comprises a negative-pressure cavity and a vacuum pump, and the negative-pressure cavity is used for performing suction filtration on a fiber layer borne on the upper surface of the upper crawler belt; the reaction supply system comprises a temperature control unit and an oxidizing medium supply unit. The production efficiency can be improved, the deep dyeing property and the dyeing uniformity of fibers are guaranteed, meanwhile, water for dyeing is saved, and the dosage of caustic soda, sodium hydrosulfite and the like is reduced.

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.

The utility model provides drum-type textile printing equipment. The roller type textile printing equipment comprises a supporting table, a supporting plate is fixedly connected to the top of the supporting table, a rolling wheel is movably connected into the supporting plate in a sleeved mode, a first motor is fixedly installed on the front face of the supporting plate, and a printing roller is fixedly connected to an output shaft of the first motor. According to the drum-type textile printing equipment provided by the utility model, the dust collection cover is arranged, when dust on the surface of textile fabric is removed, the movably conveyed fabric is attached to the top of the dust collection cover, and the dust collection pump is started at the moment, so that the dust collection pump can collect dust and burrs on the surface of the fabric through the dust collection cover; and then the dust is conveyed and stored in the dust collecting box, so that the effect of cleaning and collecting the dust on the surface of the cloth is achieved, the problem of secondary pollution caused by the fact that the dust drifts everywhere and falls onto the surface of the cloth when being blown and removed is avoided, and the cleanliness of the surface of the cloth is improved.

The utility model discloses a drying device for textile printing and dyeing, which relates to the technical field of textile printing and dyeing and comprises a drying box, heating devices are symmetrically and fixedly connected to the upper end and the lower end of the drying box, each heating device comprises a heating box, an air inlet device is arranged at the upper end of each heating box, and a heating wire is arranged below each air inlet device. A heating box is arranged on the drying box, a pressurizing box device is fixedly connected to the lower end of the heating box, an air guide device perpendicular to the advancing direction of cloth is arranged at the lower end of the pressurizing box device, the air guide device comprises an air outlet plate, and an adjusting roller is arranged in the air outlet plate. The hot air is uniformly and linearly sprayed to the cloth from the air guide opening in the air guide device, the air outlet amount of the hot air is adjusted by the adjusting roller, the cloth is uniformly heated, the cloth can be uniformly dried, and the drying effect is further improved.