627 results about "Colour fastness" patented technology

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 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 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 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 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 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 a mildew-proof and odor-resistant textile material produced from conjugated fibers and a preparation method of the mildew-proof and odor-resistant textile material, and belongs to the technical field of textiles. According to the invention, the antibacterial color fixing agent is prepared, the antibacterial color fixing agent is used for carrying out ester exchange modification on PTT to obtain the modified PTT master batch, and then the master batch is used as an'island 'component to prepare the sea-island conjugated fiber, so that the technical defect that a functional auxiliary agent is dissolved in a solvent together with the'sea' component when the sea-island conjugated fiber is prepared is effectively overcome; the sea-island conjugated fiber textile material has good antibacterial performance, still has good retention rate after being washed with water, has good moisture regain and color fastness, is skin-friendly and breathable, and effectively improves the wearing comfort of the PTT-based textile material.

This invention provides an in-situ polymerized yarn and its preparation method, relating to the field of yarn textile technology. The preparation method of this in-situ polymerized yarn includes the following steps: S1. Mixing a polymer, solvent colorant, and complexing agent in a specific ratio to obtain a spinning solution; S2. Simultaneously performing electrospinning, carding, and embedding to obtain a colored nanofiber / cotton composite sliver; S3. Drawing and spinning the sliver to produce yarn. By using colored nanofibers composited with a cotton web, the finishing process is eliminated to reduce contamination. The selection of polydimethyldiallyl ammonium chloride as a complexing agent in the spinning solution increases the volume occupied by the cross-linked structure formed by the complexing agent and dye, enhancing the cohesion with the polymer and improving its color fastness.

The invention relates to the field of recyclable textile fiber dyeing, in particular to a textile fiber stripping cyclic regeneration method based on preset dye dyeing, and provides a preset dye which is an azo structure dye, the azo structure dye molecule contains a group capable of being reduced by a reducing agent, and the preset dye is an azo structure dye. The preset dye for dyeing the recycled textile fibers is used for dyeing cashmere or wool fibers, yarns or fabrics; according to the method, the recycling rate of textile fibers is improved, namely opening, stripping, re-dyeing and textile processing are carried out in the textile and garment processing process or used waste textiles, the selection and design method of the preset dye which is of a specific structure and is used for dyeing the recycling textile fibers is provided, and the quality requirements of color fastness and the like of products are met.

The invention discloses a fiber textile fabric color fastness detection device, the fiber textile fabric color fastness detection device comprises a positioning member, the positioning member comprises a fixedly arranged positioning clamp and a movably arranged positioning clamp, and the two positioning clamps are used for clamping an elastic fabric together; and the stretching distance-fixing assembly is matched with the movably arranged positioning clamp to control the initial stretching deformation amount of the elastic fabric. According to the fiber textile fabric color fastness detection device provided by the invention, a complete detection system of fabric clamping, precise stretching, dynamic friction and springback speed control is constructed through collaborative design of the positioning piece, the stretching distance control assembly, the springback speed reduction assembly and the friction driving assembly; a solution is provided for three core pain points of'difficult reproduction of initial deformation ', 'neglect of rebound secondary color migration' and'disjunction of detection scene and reality 'of a traditional device.

The invention discloses a high-color-fastness washable polyethylene fabric and a preparation process thereof in the field of functional polymer materials. The high-color-fastness washable polyethylene fabric is prepared from the following raw materials: polyethylene resin, maleic anhydride-acrylic acid copolymer grafted polyethylene, dopamine-silane composite modified polyethylene, magnesium stearate and an antioxidant. Wherein the maleic anhydride-acrylic acid copolymer grafted polyethylene is prepared by copolymerizing maleic anhydride and acrylic acid and then blending and granulating with polyethylene, and carboxyl and acrylate groups are introduced to enhance the binding force with dye; the dopamine-silane composite modified polyethylene is prepared through polyethylene surface hydroxylation, dopamine self-polymerization modification and silane grafting reaction, and the acting force and hydrophobicity between fibers are doubly improved through a catechol group and an epoxy group. According to the prepared fabric, the color fastness and the washing resistance are remarkably improved, meanwhile, the original characteristics of light weight and chemical corrosion resistance of polyethylene are kept, and the application scene is expanded.

The invention provides a high-color-fastness gambiered canton gauze dyeing method which comprises the following steps: soaking a gambiered canton gauze coarse fabric in a 0.5-1% polycarboxylic acid buffer solution at 40-50 DEG C for 30 minutes, and airing at normal temperature to obtain a silk fabric; heating the rhizoma dioscoreae cirrhosae extracting solution to 80-100 DEG C, adjusting the pH value to 5.5-6.0, putting the silk fabric into the rhizoma dioscoreae cirrhosae extracting solution, and maintaining the temperature for 60 minutes to obtain a dyed fabric; placing the dyed fabric in a 0.5-1% polyphenol chelating solution, heating the dyed fabric to 50-60 DEG C, maintaining the temperature for 20-30 minutes, taking out the dyed fabric, spin-drying the dyed fabric, placing the dyed fabric in a 1-1.5% tea polyphenol solution, heating the dyed fabric to 50-60 DEG C, maintaining the temperature for 20-30 minutes, finally immersing the dyed fabric in a composite mordant dyeing solution, heating the dyed fabric to 40-50 DEG C, and maintaining the temperature for 10 minutes to obtain a pretreated fabric; the pretreated fabric is evenly coated with the reddish brown mud coating slurry, solarization is carried out, cleaning and airing are carried out, and gambiered canton gauze is obtained after shaping. Therefore, the problem that the traditional gambiered canton gauze is easy to fade is effectively solved.

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

The invention discloses a preparation method of a finishing agent for improving the dry and wet rubbing color fastness performance of a fabric, and belongs to the technical field of material preparation. The method comprises the following steps: firstly, adding isophorone diisocyanate and polyethylene glycol into a reactor according to a specific molar ratio to carry out prepolymerization reaction, and then sequentially carrying out operations of hydrophilic chain extension, neutralization, emulsification dispersion and the like to form a waterborne polyurethane emulsion; adding ethylene glycol diglycidyl ether, triethylamine, tetrabutylammonium bromide, KH550 modified nano silicon dioxide and the like to carry out ring-opening reaction; and finally, carrying out polycondensation and crosslinking to obtain the finishing agent. On the basis of waterborne polyurethane, a high-strength net structure is constructed through a multi-step cross-linking reaction, toxic substances such as epoxy chloropropane and the like are avoided, the dry and wet rubbing color fastness, the hand feeling, the washability and the storage stability are remarkably improved, and an innovative scheme is provided for improving the high-performance and green color fastness of the dark natural fiber fabric.

The invention relates to the technical field of cloth dyeing equipment, and discloses a sample dyeing machine for textile material processing, which comprises a dye vat, a cover plate and an electric heating water tank arranged at the upper end of the dye vat in a matching manner, and a cloth fixing clamp arranged in the dye vat and composed of an inner ring and an outer ring, the cloth fixing clamp can enable the cloth to be immersed in the dye liquor in a tensioned state, so that the cloth is in a suspended state in the dye liquor and does not make contact with the inner wall of the dye vat, and the driving mechanism is installed at the center of the cover plate through a sleeve and connected with an inner ring of the cloth fixing clamp. According to the sample dyeing machine for textile material processing, by means of multi-functional collaborative design, it can be guaranteed that dyed fabric samples are kept stable and free of wrinkles in the dyeing process, the using amount of dye liquor is effectively reduced on the premise of not making contact with the dye vat, and the follow-up treatment processes of cleaning, drying and color fastness detection can be carried out in the vat body.

A high-fixation direct-injection nylon digital printing process belongs to the technical field of fabric digital printing. This process includes the following steps: pretreatment, digital printing, fixing agent treatment, calendering, and post-treatment processes; the fixing agent is a modified lignin-based fixing agent, which is obtained by sequentially subjecting lignin to hydroxyethylation modification, quaternization modification, and amination modification, and can effectively promote the dyeing of dyes and strengthen the binding between dyes and fabrics; and has the functions of ultraviolet resistance and antibacterial and anti-corrosion; and does not release toxic formaldehyde and isocyanates during the process of treating fabrics, is non-toxic and environmentally friendly, and the raw materials are renewable. The nylon digital printing products obtained by the printing process provided by the present invention have excellent color fixation effects; the improvement effects in terms of wet and dry fastness, washing color fastness, soaping color fastness, etc. can be comparable to those of commercial fixing agents, and have broad market prospects.

The invention relates to the technical field of labor protection clothing manufacturing, and discloses novel labor protection clothing containing bamboo fibers and a preparation method of the novel labor protection clothing. 20%-23% of cotton fiber; 28%-32% of polyester fibers; 4%-6% of nanofiber felt; 2%-3% of antistatic conductive wires; 2%-3% of an acid-proof material; 2%-3% of an alkali-proof material; 5%-7% of a flame-retardant material and 1.2%-1.6% of a flame retardant; 0.5%-1% of an acid and alkali resistant finishing agent; 0.5%-1% of an anti-shrinking agent; the preparation method comprises the steps of material pretreatment, multi-component fiber precise premixing, embedded weaving conductive yarn spinning, high-density weaving, nano functional layer compounding and synergistic after-finishing, and the bamboo fiber, the functional polyester and the nano fibrofelt are compounded through a ternary synergistic system of the bamboo fiber, the functional polyester and the nano fibrofelt and a low-temperature hot melting point bonding and electrostatic electret integrated compounding process. Therefore, the beneficial effects that the air permeability is improved, the shrinkage rate is reduced and the color fastness to washing is improved on the premise that the safety protection levels of flame retardance, acid and alkali resistance and static resistance are not reduced are achieved.

The invention provides a multidirectional rubbing color fastness detection device, and relates to the technical field of color fastness detection.The multidirectional rubbing color fastness detection device comprises a detection assembly, the detection assembly is composed of a friction mechanism and a driving mechanism, and the reciprocating movement direction of the friction mechanism can be freely adjusted, controlled and guided according to actual requirements, so that the friction mechanism can be adjusted and guided freely on the premise that a to-be-detected sample is not disassembled and assembled again; the detection direction is reset and guided, the operation process is simplified, the detection efficiency is improved, and meanwhile, the driving mechanism has two detection types of reciprocating motion and autorotation, so that the detection requirements of different types (rotary friction and reciprocating friction) can be met, and the problems that the friction head of the rubbing color fastness detection device is fixed in moving direction, and the detection precision is low are solved. And when friction detection needs to be carried out on the surface of the sample in different directions, only the clamped sample needs to be disassembled firstly, the fixed angle of the sample is adjusted and then the sample is clamped again, so that the operation steps are tedious.

The invention relates to the related technical field of costume fabrics, in particular to a high-antibacterial anti-sunshine costume fabric not prone to fading and a preparation technology, the high-antibacterial anti-sunshine costume fabric comprises a base fiber layer, and an antibacterial finishing layer, an anti-ultraviolet layer and a color fastness enhancing layer are arranged on the base fiber layer. According to the high-antibacterial anti-sunshine clothing fabric not prone to fading and the preparation process, a nano-silver and chitosan composite system is adopted, nano-silver releases silver ions to destroy the physiological structure of bacteria, chitosan inhibits the activity of the bacteria through the amino effect, the nano-silver and the chitosan cooperate with each other, the antibacterial effect of clothing is improved, nano-zinc oxide and titanium dioxide composite sol improve the antibacterial effect of the clothing, and the antibacterial effect of the clothing is improved. Through multiple mechanisms of reflecting, scattering and absorbing ultraviolet rays, broadband protection is formed, the ultraviolet rays can be effectively blocked, the high-grade sunscreen requirement is met, the skin is protected from being damaged by the ultraviolet rays, the sulfonic-group-containing organic dye fixing agent, dye molecules and fibers form chemical bond combination, a stable color fixing network is constructed, and the appearance color and luster are kept lasting.

The invention discloses a fabric color fastness friction detection device, and relates to the technical field of color fastness detection.The fabric color fastness friction detection device comprises a friction detection mechanism and lifting supports installed on the two sides of the friction detection mechanism, a fabric fixing mechanism is arranged at the bottom of the friction detection mechanism, and pressing supports are arranged on the two sides of the fabric fixing mechanism; the friction detection mechanism comprises a detection limiting disc, switching supports are symmetrically installed at the bottom of the detection limiting disc, fixing rings are fixedly installed on the inner sides of the switching supports, a fixing inserting groove is formed in the fixing ring on one side, a rotating ring is fixedly installed on the outer side of the fixing ring, and a clamping groove is formed in the outer side of the rotating ring. The friction cloth can be replaced by switching the connecting friction head and the mounting ring, so that flooding of the deep-color denim is eliminated, friction detection of the color fastness of the deep-color denim is carried out, the switched switching ring is fixed by utilizing the characteristic that the locking clamp is connected with the connecting bracket in a clamping manner, and the stability of the connecting friction head and the mounting ring is improved.

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.

The invention discloses a preparation method of high-color-fastness woven body paper and the high-color-fastness woven body paper, and relates to the technical field of papermaking, and the preparation method of the high-color-fastness woven body paper comprises the steps of preparing a composite dyeing assistant and preparing the woven body paper. The preparation method comprises the following steps: stirring and mixing cationic microcrystalline cellulose, sodium carboxymethyl cellulose, triethanolamine myriceate, glucan hydroxypropyl trimethyl ammonium chloride, a water-based polycarbodiimide cross-linking agent and deionized water to obtain a composite dyeing assistant, then adding the composite dyeing assistant into slurry, adding a water-based dye, and carrying out a papermaking process to obtain the composite dyeing assistant. According to the method, the color fastness of the woven body paper can be improved. The sun-proof grade of the high-color-fastness woven body paper is greater than or equal to 4 grades.

The invention discloses a non-contact textile color fastness automatic rating method and device, and relates to the technical field of textile detection. A textile image is collected under a D65 standard light source through an industrial color camera, after preprocessing such as bilateral filtering, self-adaptive contrast enhancement and linear brightness adjustment is carried out, in combination with fiber material characteristics, fabric structure characteristics and environmental factor data, a color change and staining model built by a multi-layer sensor is used for training, and a color change and staining model is obtained. And converting the RGB value into a CIELAB value to calculate a color difference value, selecting coefficients according to different conditions to calculate a color fastness value, and finally rating according to a standard and generating a report. According to the invention, high precision, high reliability and automation of color fastness detection are realized, errors are effectively reduced, the detection efficiency is improved, the cost is reduced, and the method has good universality for different types of textiles.

The utility model relates to the field of mesh cloth provides a high colour fastness jacking mesh cloth, solves the defect that the colour fastness of jacking mesh cloth of prior art is not high, including mesh cloth body, the mesh cloth body is by surface layer, connecting layer and bottom layer constitutes, the surface layer has jacquard weave, the surface layer is woven by wear -resisting fibre yarn and chinlon fibre yarn according to 2: 1 3: 1's number of strands, the connecting layer is the elastic fibre yarn with support performance, one end of connecting layer is connected with surface layer, the other end is connected with bottom layer, the bottom layer is woven by antibacterial microcapsule fibre yarn and moisture -absorbing and sweat -releasing fibre yarn according to 1: 1 1: 2's number of strands.

The invention relates to the technical field of image processing, in particular to a textile fabric texture area color fastness detection method and device, and the method comprises the steps: collecting RGB images before and after a test during the color fastness detection of the same textile fabric; the two images are grayed and then overlapped parts of edge contours are closed to screen out texture areas of the RGB images; determining brightness features of target pixel points in the RGB image before and after the test, identifying random noise points and constructing range weights of the random noise points, and correcting the brightness features for feature weighting of Gaussian kernel standard deviation during calculation of filtering at the corresponding pixel points; calculating a color difference value of the two filtered RGB images before and after the test in a texture area in the CLELAB color space; and outputting the color fastness grade of the texture area according to the color difference value and the color fastness grading method table. The invention aims to improve the precision of subsequent color fastness detection of the texture area of the textile fabric.