1075 results about "Colour fastness" patented technology

The invention provides a textile color consistency detection method, which comprises the following steps: acquiring spectral data of a to-be-detected product, comprehensively scanning the surface of the product through multispectral imaging, and performing noise reduction and enhancement processing on scanning data by adopting an image processing algorithm to obtain high-precision color difference detection data; according to the optimal dyeing process parameters and the pretreatment scheme, numerical simulation is adopted to simulate the dyeing process, the diffusion process of the dye in the fiber is calculated through finite element analysis, and a dyeing uniformity prediction result is obtained; and comparing the prediction result with a color fastness test standard, judging whether the dyed fabric can meet the product quality requirement or not, if so, warehousing the batch of products, and if not, feeding back the prediction result to a dyeing process control system, and carrying out the next round of optimization iteration until the product quality requirement is met.

The invention discloses an automatic textile color fastness rating method and system based on a CNN-Transform fusion model, and relates to the technical field of textile digital detection. And then, feature extraction and rating are carried out by using a CNN-Transform fusion model. After the features of the two are fused, weighting is carried out through an attention mechanism, classification is carried out through a full-connection layer, and the color fastness grade probability is determined through a Softmax function. Meanwhile, a cross entropy loss function is combined with a label smoothing technology, an Adam optimizer is utilized, and a learning rate attenuation strategy is matched to train the model. Finally, confidence evaluation and result correction are carried out on the rating result, automatic and high-precision textile color fastness rating is achieved, and the problems that an existing rating method is poor in accuracy, low in consistency, difficult to adapt to fine rating standards and the like are effectively solved.

The invention discloses a garment fabric color fastness detection method and system, and relates to the technical field of fabric detection.The method comprises the steps that initial color information and initial texture information of a to-be-detected garment fabric are integrated; simulating the action factors of the to-be-detected garment fabric in the various preset scenes so as to perform color fastness testing on the to-be-detected garment fabric in the various preset scenes; wherein the action factors in the multiple preset scenes comprise friction, water washing, raining, insolation, illumination, seawater impregnation, saliva impregnation, water stains and sweat stains; collecting a reference color information set and a reference texture information set of the to-be-detected garment fabric subjected to the color fastness test in the various preset scenes; analyzing the initial color information and the reference color information set after the color fastness test in various preset scenes; and evaluating the color fastness of the to-be-detected garment fabric according to the calculated color difference condition and the change condition of the surface structure of the to-be-detected garment fabric.

The invention discloses a detection device for detecting color fastness of fabrics, which relates to the technical field of color fastness detection, and comprises a cover plate; further comprising: a detection assembly is arranged on one side of the cover plate, and the detection assembly comprises a rotating rod, a reciprocating gear is arranged below the rotating rod, and a bidirectional threaded rod is fixedly connected to the middle of the bottom surface of the reciprocating gear; wherein, a threaded block is threadedly connected to the outer side of the lower end of the bidirectional threaded rod, a guide rod is fixedly connected to the outer side of the threaded block, and a lower lifting plate is rotatably connected to the outer side of the threaded block; wherein an upper lifting plate is arranged on the outer side of the upper end of the bidirectional threaded rod, and a knocking hammer is inserted in the middle of the upper lifting plate; wherein a differential assembly is arranged on the outer side of the upper lifting plate, and the knocking hammer is brought into contact with the top surface of the lower lifting plate through the contraction of the lower lifting plate and the upper lifting plate, so as to achieve the purpose of simulating the knocking and hammering washing process of fabrics during home laundry, thereby facilitating the improvement of the accuracy of color fastness detection of fabrics.

The invention discloses a dyeing fabric flooding washing method capable of reducing pollution from the source, which comprises the following steps: introducing micro-nano bubbles in the washing process after the fabric is dyed, regulating the diameter and proportion of the micro-nano bubbles, and by virtue of the dispersing force and huge specific surface area of the micro-nano bubbles and the impact force generated when the bubbles are broken, finishing the dyeing of the fabric. The washing agent can effectively disperse and remove flooding, suspended solids, greasy dirt and a surfactant on the surface of the fabric, realizes an efficient and energy-saving washing effect under the conditions of no addition of washing assistants and normal temperature, and improves the color fastness of the fabric. The method has the advantages of mild washing conditions, environmental protection, substantial reduction of the COD value of sewage after washing, shortening of the washing time, improvement of the equipment operation efficiency, and substantial energy-saving, time-saving, economic and environmental protection benefits.

The invention relates to the technical field of textile detection, in particular to a computer-aided textile color fastness prediction method, which comprises the following steps: acquiring multi-source data before and after a textile color fastness test through computer control equipment, including digital images, reflection spectrum data, process parameters and dye characteristic component data, carrying out pretreatment; extracting color difference features and spectrum similarity features, and screening by adopting a dimension reduction algorithm to form a core feature vector; a machine learning algorithm is adopted to construct a color fastness prediction model, parameters are optimized in combination with cross validation and an early stop mechanism, model fine tuning is executed, and a final optimization model is obtained; and outputting a color fastness grade prediction result, and carrying out spectrum similarity secondary verification. According to the method, objective, efficient and high-precision prediction of the color fastness grade of the textile is realized, and the problems of high subjectivity and low efficiency of traditional manual evaluation are solved.

The invention belongs to the technical field of functional fibers, and relates to colored multi-groove type regenerated polyester staple fibers and a preparation method thereof. The preparation method comprises the following steps: carrying out melt blending on the regenerated polyester and the color master batch, and spinning by a multi-groove spinneret plate to obtain the colored multi-groove regenerated polyester staple fiber. The cross section of the fiber is of a multi-groove structure, the linear density of the fiber is 3.33-11.11 dtex, the linear density deviation rate is-8%-8%, the breaking strength of the fiber is 3.3-4.5 cN / dtex, the elongation at break is 28.2-43.5%, the content of super-long fibers is 0-3 mg / 100 g, the defect content is 5-50 mg / 100 g, the crimp number is 9-13 / 25 mm, the crimp rate is 10%-16%, the fiber forming degree is larger than or equal to 85%, and the color fastness is larger than or equal to 4. The colored multi-groove type regenerated polyester staple fiber prepared by the method has good mechanical properties, color fastness and forming degree, ensures the quality of regenerated polyester, realizes efficient regeneration and utilization of waste polyester, can be applied to preparation of various clothing products, and has good development prospects.

The invention relates to the technical field of data analysis and evaluation, in particular to a color fastness evaluation method and system, and the method comprises the following steps: setting test conditions to simulate external factors encountered in the actual use or processing process of textiles; under the simulated test condition, treating the textile sample for a preset time; acquiring a multispectral image of the textile by adopting a multispectral imaging technology, and capturing color change of the textile; developing a self-adaptive image enhancement algorithm, and performing preprocessing; comparing spectral information of the multi-spectral image of the textile before and after processing based on chromatic aberration evaluation analysis so as to quantify the color fastness; analyzing the multispectral image after image enhancement by using a deep learning technology, extracting color attenuation features, and comprehensively evaluating a color fastness score; according to the color fastness evaluation method, basic color difference information is considered, advanced features such as textures, edges and local color modes of the textile are further included, and the accuracy and reliability of color fastness evaluation are remarkably improved.

The invention discloses a preparation method and application of a color master batch, belongs to the technical field of color master batch processing, and is used for solving the technical problem that the dispersity, color fastness and antistatic property of the color master batch in the prior art need to be further improved. The preparation method comprises the following steps: adding a modified pigment dispersion, modified polyurethane, polylactic acid and an auxiliary additive into a double-screw extruder, and carrying out melt extrusion and grain-sized dicing to obtain the color master batch. The modified polyurethane is used as a switch phase, the polylactic acid is used as a stationary phase, and the modified pigment dispersion and the auxiliary additive are used as assistants, and melt extrusion is carried out to obtain the color master batch. The antistatic property and color fastness of the color master batch are improved, and the mechanical property and dispersity of the color master batch are also improved.

The invention belongs to the technical field of textile, and relates to an efficient antibacterial fabric for preparing underwear and a dyeing and finishing method and application thereof.The provided antibacterial fabric is weft-knitted bird eye double-faced knitted fabric and is composed of polyester, cotton and modal fibers, the surface density is 180 g / m, surface yarn of the antibacterial fabric is hollow polyester fibers with special-shaped sections, and the surface yarn of the antibacterial fabric is hollow polyester fibers with special-shaped sections. The lining yarn is formed by weaving dacron and blended yarn according to the proportion of 2: 1. According to the method, dyeing and finishing of the antibacterial fabric, fabric weaving and ergonomic sewing are combined, the fabric which has efficient antibacterial performance, good moisture permeability and ultraviolet-proof performance and high color fastness is obtained, and the prepared antibacterial clothes are high in quick-drying performance, comfortable to wear and high in environmental adaptability.

The invention discloses a yellow reduction dyeing agent, a dyeing solution and a preparation method and application thereof, and relates to the technical field of dyeing and finishing. According to the yellow reduction dyeing agent provided by the invention, the 5-hydroxy-3-aminopyridine-2, 6-(1H, 3H)-diketone is adopted as a reduction dye, and the sodium sulfite is independently used as a reducing agent for reduction dyeing, so that the obtained dye leuco body is proper in dyeing capacity, and a dyed fabric can show excellent light brittle damage resistance. The fabric dyed by the dyeing agent has similar breaking strength before and after dyeing and even is slightly improved after dyeing and illumination, meanwhile, the color depth K / S of the fabric dyed by the dyeing agent reaches 3.2 or above, the dry and wet rubbing color fastness can reach level 4 or above, and the color fastness to illumination reaches level 6 or above.

The invention discloses a washable easily-colored wool fabric treatment process, belongs to the technical field of wool fabric processing, and aims to solve the technical problem that the dyeing degree, the anti-felting performance and the color fastness of wool fabrics in the prior art need to be further improved. The method includes the following steps that disulfide bonds of wool fibers are opened through L-cysteine, the washable and easy-to-color wool fabric is obtained, the pretreated wool fibers prepared through the method are grafted with methoxy polyethylene glycol methacrylate under catalysis of hydrogen peroxide and horse radish peroxidase, modified wool fibers are obtained, and the washable and easy-to-color wool fabric is obtained. After the modified wool fibers are woven into the wool fabric, the wool fabric is respectively subjected to padding modification by using the modified dye solution and the finishing liquid, so that the degree of dyeing, the anti-felting performance and the color fastness of the wool fabric are improved.

The invention belongs to the field of garment processing, and particularly relates to a garment color fastness gradient detection method based on visual processing, which comprises the following steps: carrying out standardized color fastness test on a garment sample, and collecting corresponding picture samples and color fastness parameters according to a test time sequence; preprocessing the collected picture samples according to a test time sequence, wherein the preprocessing comprises denoising, enhancement and color correction of the picture samples; extracting color features and texture features of the preprocessed picture samples, performing gradient classification on various picture samples according to a test time sequence, and establishing a color feature data set, a texture feature data set and a color fastness parameter data set which are associated; through standardized testing and automatic image acquisition, hundreds of samples can be processed at a time, predicted values are directly output based on a trained model, physical testing steps are reduced, key areas such as necklines and cuffs are positioned through area segmentation, local area testing is rapidly carried out, and compared with global testing, the method has the advantages of being high in pertinence and accuracy, and missing detection can be avoided.

The invention relates to the technical field of woven fabrics, in particular to a high-adhesiveness water-based dye dyed fabric and a preparation method thereof.The preparation method comprises the following steps that modified polyester yarn serves as warp yarn and weft yarn to be subjected to spooling treatment, the speed of a spooling machine is set to be 1200 m / min, and the spooling tension is 5-10 g; the warp yarn and the weft yarn which are subjected to spooling treatment are subjected to warping treatment, the warping speed is set to be 500 m / min, and the winding density is 0.5 g / cm < 3 >. According to the fabric, the modified polyester yarns are adopted as the warp yarns and the weft yarns respectively, and through operations such as spooling, warping, sizing, weaving and the like, the specially-made modified polyester yarns and water-based dye treatment are adopted, so that the obtained fabric has the advantages that the fabric air permeability, the mechanical property and the color fastness performance are balanced and coordinated; and the product has obvious washing resistance and scraping stability.

The invention relates to the technical field of dyeing formula data processing, in particular to a dye formula optimization method and system for a disperse dark color one-bath dyeing process, and the method comprises the steps: constructing a process formula data set, calculating dye mixed spectrum data through a Beer-Lambert law, extracting features through a CNN and Transform prediction method, and fusing the features, thereby calculating chromatic aberration. And if the color difference exceeds the threshold value, optimizing the dye proportioning concentration by using a genetic algorithm. In the dyeing process, a dye bath fuzzy set is divided based on a fuzzy control model, a fuzzy rule is set, and the real-time process parameter adjustment amount is calculated and optimized in combination with the membership degree. After dyeing is completed, process image data are collected, and process chromatic aberration, maximum local chromatic aberration and color fastness are evaluated by means of a computer vision model. If the evaluation result does not reach the standard, the dye proportioning concentration and the real-time process parameter adjustment amount are adjusted, the chromatic aberration in the dyeing process of the dark-color sportswear is reduced, and the dye formula accuracy is improved.

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 belongs to the technical field of textile production, and relates to an active disperse dye and a dyeing process. The reactive disperse dye comprises a dye matrix and a bis-aziridine chain segment grafted on the dye matrix, and-OCH2-is introduced to an aromatic ring para-position of the bis-aziridine chain segment as an electron-donating group. A dyeing process: after active disperse dye is dissolved, dyeing the textile; the textile consists of more than one of natural fibers and synthetic fibers; the dyeing temperature is 85-100 DEG C, and the dyeing temperature is higher than Tg of the synthetic fibers. According to the invention, a '-OCH2-' electron-donating group is introduced in the para-position of an aromatic ring of a diaziridine chain segment, and the conjugation effect and the induction effect of the group reduce the activation energy of C-N bond breakage, so that carbene can be efficiently generated without depending on a high-temperature or acid-base environment; the problems that in the prior art, the condition for generating carbene through a diaziridine chain segment is harsh, and the color fastness of the dyed textile is low when supercritical CO2 fluid is adopted for dyeing are solved.

The invention relates to the technical field of dyeing of brocade-spandex fabrics, and particularly discloses a dyeing process for improving dyeing saturation and color fastness and a brocade-spandex dyed fabric. A dyeing process for improving dyeing saturation and color fastness comprises the following steps: firstly, mixing dye, a leveling agent, brocade spandex gray cloth and water to prepare primarily dyed cloth; then adding a color fixing agent into the primarily dyed cloth to obtain color-fixed wet cloth; and finally, loosening, drying and shaping the color-fixed wet cloth to obtain the brocade-spandex dyed fabric. A brocade-spandex dyed fabric is prepared by a dyeing process for improving dyeing saturation and color fastness. According to the method, the problems of non-uniform dyeing and low color fastness of the brocade-spandex fabric are effectively solved, and the brocade-spandex dyed fabric with good dyeing saturation and color fastness is obtained.

The invention discloses a preparation method and a dyeing process of 5, 5 '-dihydroxy-observation blue, and relates to the field of dye chemical industry. According to the preparation method of the 5, 5 '-dihydroxy-observation blue, provided by the invention, amino on the observation blue is converted into hydroxyl by utilizing the catalytic effect of the vanadium-based catalyst in an acid environment, the production of the 5, 5'-dihydroxy-observation blue can be realized through one-step reaction, the yield is up to 32.47% or above, and the obtained compound can be used as a blue direct dye and can be used for preparing blue dye. After being dyed, a fabric can present bright blue, the K / S value reaches 10 or above, and the fabric has excellent color fastness, and the color fastness to washing, the color fastness to soaping and the color fastness to wet rubbing all reach 4-5 levels.

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

The invention belongs to the technical field of textile dyeing and finishing, and relates to a method for washing dyed fabric based on a micro-nano bubble technology, which comprises the following steps of: continuously injecting water containing micro-nano bubbles at the temperature of 10-80 DEG C into a washing tank or a dyeing vat in which the dyed fabric is placed by utilizing a micro-nano bubble generating device until the fabric is completely immersed in the water; the micro-nano bubbles are continuously generated to wash the dyed fabric for 30 seconds to 10 minutes, and the process of washing the fabric by using the water containing the micro-nano bubbles can be repeated according to the color fastness requirement of the washed and dyed fabric; the fabric contains any one fiber component of cellulosic fiber, wool and silk; the micro-nano bubbles are air bubbles, oxygen bubbles, hydrogen bubbles, nitrogen bubbles, helium bubbles or argon bubbles; the minimum diameter of the micro-nano bubbles is smaller than or equal to the pore diameter of micropores in fibers after the fabric is swelled. In the washing process, only micro-nano bubble water is used, a soaping agent is not used, the washing time is shortened to 30s-10min, and the color fastness of the washed fabric is improved.

The invention relates to a polyamide synthesis technology, and discloses a self-coloring polyamide product as well as a preparation method and application thereof. The polyamide product contains a chromogenic structural unit, the chromogenic structural unit contains a dye chromogenic group, and the dye chromogenic group is selected from at least one of a solvent black group, an acid black group, an acid blue group and an acid yellow group; the polyamide product does not have a decoloration phenomenon after being cooked by an organic solvent, and the color depth difference value of the polyamide product does not exceed 0.2. The preparation method of the polyamide product comprises the following steps: carrying out a reaction I on a polyamide monomer, a dye condensate and an auxiliary agent under an anaerobic condition; the polyamide product provided by the invention not only is uniform in dyeing, good in stability and high in color fastness, but also omits a physical dyeing process in the preparation process, and is low in energy consumption, small in pollution, high in environmental protection property and good in economic benefit and social benefit.

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

The invention discloses a dyeing method and system of a light nylon fabric, and relates to the technical field of fabric dyeing, and the dyeing method comprises the following steps: S1, carrying out pretreatment operation on the light nylon fabric to obtain a pretreated qualified fabric, determining an initial dyeing formula in combination with a target color parameter, and optimizing to obtain an optimized dyeing formula; s2, generating a preliminary operation strategy containing control parameters based on the optimized dyeing formula, and performing dynamic calibration to obtain an optimized operation strategy; s3, optimizing the optimized operation strategy to obtain a target operation strategy so as to control the dyeing equipment to execute dyeing operation, and obtaining qualified dyed fabric. According to the method, by constructing a virtual dyeing platform, simulating a multi-parameter combination scheme and verifying the rationality of parameters in advance, actual trial and error are reduced, all the steps are closely matched, the color uniformity and color fastness of the dyed fabric are effectively improved, the deviation between the dyed fabric and a target color is reduced, the dyeing quality and the finished product percent of pass are remarkably improved, and the production cost is reduced. Meanwhile, the production cost and the resource waste are reduced.

The invention relates to the field of textile machinery, and discloses a high-color-fastness dyeing machine which comprises a storage box, the front side and the rear side of the storage box are fixedly connected with side plates through T-shaped plates, the rear side of one side plate is fixedly connected with a driving mechanism, the right ends of the two T-shaped plates are fixedly connected with a drying mechanism, and the right ends of the two T-shaped plates are fixedly connected with the drying mechanism. The left ends of the two side plates are fixedly connected with guide mechanisms, the far sides of the two T-shaped plates are fixedly connected with adjusting mechanisms, the driving mechanism comprises a protection box, the protection box is fixedly connected to the rear side of one side plate, and the interior of the protection box is fixedly connected with a driving wheel through a driving assembly. According to the cloth cleaning device, two ring bodies are driven to slide and provide driving force for a transmission column, so that the distance between two cleaning rollers can be adjusted, cloth with different thicknesses can be cleaned, and the flexibility of the device is improved.

The invention relates to a high-count double-sided plaid knitted shirt fabric with stable size and a production process thereof, and belongs to the technical field of textile. The spinning mode is compact siro spinning, and the fabric comprises the following components in percentage by weight: 83-88% of cotton and 12-17% of tencel; the jacquard plaid patterns are arranged into four paths from bottom to top; the jacquard weave distribution of the needle cylinder is divided into 54 parts from bottom to top, and the dial triangle is divided into two paths; the production process sequentially comprises the steps of spinning, yarn dyeing, weaving, singeing, water washing, mercerizing, liquid ammonia treatment, water washing and tentering. The fabric is good in shrinkage permeability and good in shape retention; the fabric is compact in texture structure, the dimensional stability and mechanical strength of the fabric are improved, the overall pattern is simple and square, the dimensional stability is good, crease resistance, moisture absorption and breathability are integrated, the pattern is rich, the color fastness is high, and the fabric can resist washing modes such as hand washing and washing machine washing.

The invention discloses a device and a method for testing color fastness to rubbing of a dark cotton corduroy fabric, and belongs to the technical field of fabric detection.The device comprises a chassis, an electric guide rail is arranged on the periphery of the top of the chassis, a material changing mechanism is arranged on the top of the electric guide rail, and lifting bases are symmetrically arranged at the two ends of the chassis; an adjusting cross beam and a control panel are arranged on the lifting base; linkage and mutual matching of a system and a mechanical structure can be formed, feeding abnormity generated in the automatic material changing period of the fabric is avoided, the influence of related factors of material fixing on the color rubbing fastness detection result is reduced, multiple magnetic attraction conversion connection and pneumatic attraction connection between the material changing mechanism and the material clamping friction dynamic detection mechanism can be utilized, and the color rubbing fastness detection efficiency is improved. In combination with a ball joint rolling adjustment dynamic structure, self-adaptive rapid adjustment is performed on the fabric with center deviation or abnormal fixation after feeding, and the overall detection efficiency and accuracy are improved.

The invention relates to a liquid disperse dye dyeing process for a polyester trademark braid, and belongs to the technical field of textile printing and dyeing. The dyeing process provided by the invention comprises the steps of pretreatment, dye liquor preparation, dyeing, fixation treatment and post-treatment, and the dyeing temperature, dye liquor concentration and time and addition of auxiliaries are controlled through specific process parameters and operation procedures, so that the dyeing uniformity and color fastness of the polyester trademark braid are remarkably improved; meanwhile, the utilization rate of the dye and the quality of a dyed finished product are improved, emission of the dye in the dyeing process is reduced, and pollution to the environment is reduced.

The invention relates to the technical field of colored spun yarns, in particular to a full-color-gamut dye liquor color mixing and spray dyeing device and a method for preparing colored spun yarns. The full-color-gamut dye liquor mixing and spray-dyeing device comprises three dye liquor batching tanks which are respectively used for batching red dye liquor, yellow dye liquor and blue dye liquor, the bottom end of each dye liquor batching tank is provided with a first liquor discharge pipe, and each first liquor discharge pipe is provided with a first proportional valve; the upper end of the dye liquor mixing tank is respectively communicated with each first liquid discharge pipe through a pipeline, and the dye liquor mixing tank is used for mixing and preparing dye; the first atomizing nozzle is arranged below the dye liquor mixing tank, is communicated with the dye liquor mixing tank through a pipeline, and is used for atomizing and spraying the mixed dye liquor to the surface of the fiber. The full-color-gamut spray-dyeing colorful spinning fiber life slivers can be obtained, then production of the full-color-gamut colorful spinning yarn is achieved through the drawing procedure, the technological process is shortened, the color matching efficiency is improved, and meanwhile textile fabric made of the yarn has high color fastness.

The invention relates to the technical field of fabric processing, and particularly discloses a high-color-fastness nylon / spandex cationic polyester mountain-climbing nylon fabric and a processing technology thereof, and the processing technology specifically comprises the steps of weaving, desizing and preshrinking, blank fixing, desizing in a cylinder, one-bath dyeing and shaping finishing. Wherein the bath ratio is 1: 10, water is fed, a chinlon sealing agent is firstly added, the temperature is increased to 65-70 DEG C for treatment, then the temperature is reduced to 40 + / -2 DEG C, a leveling agent, a nonionic cationic polyester dyeing assistant and cationic dye dissolved by acetic acid are sequentially added, the pH value is adjusted, then the temperature is increased to 60-65 DEG C at a first rate and subjected to heat preservation dyeing, then the temperature is increased to 90 + / -2 DEG C at a second rate and subjected to heat preservation dyeing, and the temperature is increased to 90 + / -2 DEG C at a third rate and subjected to heat preservation dyeing; sequentially adding a nonionic dispersing agent WA and an anionic dispersing agent NNO, carrying out heat-preservation operation, adding an acid dye, heating to 102-105 DEG C at a third rate, and carrying out heat-preservation dyeing. The one-bath dyeing of the cationic dye and the acid dye is realized, and the color fastness and the apparent depth are improved.