2858results about "Dyeing process" patented technology

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

The invention discloses a dyeing method of an ornamental blue dye, and relates to the dyeing method of the ornamental blue dye, through combination of plasma treatment and boiling-off, fiber impurity diseases can be effectively removed, the surface activity is enhanced, the adsorption uniformity and permeability of the dye are improved, and tiny pits exist on the fiber surface subjected to plasma treatment, so that the dyeing quality is improved. Compared with the prior art, the method has the advantages that when the dye is dyed, the molecular structure is changed, the roughness is higher, the dip dyeing firmness of the dye is improved, and the fiber damage can be reduced and the dye utilization rate can be improved on the premise of ensuring the dyeing effect by optimizing the components of the ornamental blue dyeing solution and the pretreatment solution. Besides, by means of segmented treatment in the dyeing process, dye can be promoted to fully permeate into the fibers, dyeing defects are reduced, the dyeing firmness is improved, finally, microwave is used for assisting color fixation, bonding of the dye and the fibers is further increased, the color fixation time is shortened, and meanwhile the coloring firmness is obviously improved.

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

To provide: an ink having good storage stability and high light resistance; an ink having high optical density and excellent color development stability during heat pressing; and a thermal transfer recording sheet in which fading due to mixing of two different yellow colorants used in a yellow colorant layer of the thermal transfer recording sheet is suppressed.SOLUTION: An ink comprises a medium and carrier particles dyed with a compound represented by general formula (1) and a compound represented by general formula (2). An ink comprises an aqueous medium, a dispersant, a compound represented by general formula (1), and a compound represented by general formula (2). A thermal transfer recording sheet has a yellow colorant layer containing a compound represented by general formula (1) and a compound represented by general formula (2).SELECTED DRAWING: None

To provide a fiber structure suitable for a wear for healthcare and nursing care workers in which inferior light resistance and heat resistance which are intrinsic to cationic dyeable polyester fiber dyed with a cationic dye are simultaneously overcome, and a method for manufacturing the fiber structure.SOLUTION: A fiber structure containing cationic dyeable polyester fiber dyed with a cationic dye contains a benzotriazole-based compound by 0.50 mass% to 3.50 mass% based on the mass of the fiber structure, and contains a zinc pyrithione-based compound by 0.05 mass% to 0.20 mass% based on the mass of the fiber structure.SELECTED DRAWING: None

The invention provides a substituted amino bipyridine derivative as well as a preparation method and application thereof, the structure of the substituted amino bipyridine derivative is as shown in formula I. In the formula, R1, R2, R3 and R4 are independently selected from any one of H, C1-C6 alkyl, C2-C6 alkenyl, C2-C20 alkynyl, C3-C6 cycloalkyl, C5-C20 aryl or C5-C20 heterocyclic radical; when R1, R2, R3 and R4 are not methyl, no more than one of R1, R2, R3 and R4 is H; and when any one of R1, R2, R3 and R4 is methyl, the rest groups are independently selected from H or methyl. When the substituted amino dipyridyl derivative provided by the invention is used as a blue dye, the dyed blue dye is bright in color, deep in dyeing and comprehensive in dyeing fastness; the preparation process is simple, convenient to purify, safe, simple, convenient and energy-saving, the product quality is stable, the reproducibility is good, the yield is high, and the method is suitable for industrial production.

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, 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 relates to the field of school uniform fabric production, in particular to a preparation method of an environment-friendly quick-drying school uniform fabric, which comprises the following preparation steps: S1: material selection, S2: fiber functionalization treatment, S21: plasma surface modification, S22: enzymatic polishing, S3: blended yarn preparation and fabric weaving, S4: fabric dyeing, S5: multifunctional composite finishing, S51: spraying of a waterborne polyurethane coating, S52: ozone washing water softening, s6, carrying out post-treatment; the regenerated polyester, the organic cotton and other raw materials are adopted, the regenerated polyester is made of recycled PET plastic bottles and is environmentally friendly and economical, polar groups on the surface of the regenerated polyester are activated through plasma surface modification, the hygroscopicity is greatly improved, the quick-drying performance is enhanced, and by means of a unique double-layer honeycomb mesh structure and a double-strand yarn optimization treatment mode, the moisture absorption performance is greatly improved. A multidirectional moisture guiding channel is formed, and the moisture evaporation rate is increased, so that the prepared school uniform fabric is environment-friendly, durable and comfortable while maintaining high-breathability and quick-drying performance.

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 multifunctional printing and dyeing dye and application thereof in outdoor clothes, and belongs to the technical field of nylon printing and dyeing, the multifunctional printing and dyeing dye comprises 1-3% (o.w.f) of an acid dye, 1.5-3.5 g / L of a dyeing auxiliary agent, and 0.6-1 g / L of an auxiliary agent cross-linking agent; the dyeing auxiliary agent is a core-crosslinked star-shaped polymer prepared by an arm-first method; dyeing can be changed into color fixation by adjusting the pH value and the bath ratio of the dye bath without additionally preparing a color fixation solution, so that the additional water consumption required by color fixation is reduced; the adopted dyeing auxiliary is a core cross-linked star-shaped polymer prepared by an arm method, and the ultraviolet light absorber is coated in a core, so that the light stability and washability of the ultraviolet light absorber are improved, the mobility is reduced, and the problem of sensitive skin stimulation caused by long-term contact with human skin after the ultraviolet light absorber is migrated to the surface of the fabric is prevented.

To provide an inkjet printing method exhibiting excellent texture and reduced stickiness.SOLUTION: This inkjet printing method comprises the steps for discharging onto a fabric an ink composition containing an anionic resin and a silicone-acrylic resin having a film elongation of 600% to 1600% to form a wet image, and irradiating the formed wet image with infrared rays to form a dried image.SELECTED DRAWING: Figure 2

The application discloses a kind of imitated plant leaf hydrogel composite material and preparation method thereof, belong to bionic composite material field.The application first by colorant compounding preparation printing paste, and fabric is printed, obtain the green fabric that can realize to plant leaf " green peak " and " red edge " spectral characteristic simulation, and with green fabric simulation leaf structure in fence organization and skeleton;Then with biomaterial polyvinyl alcohol (PVA) as base material, join with strong hygroscopic monomer and crosslinking agent, initiator blend preparation hydrogel prepolymer solution;Finally, hydrogel prepolymer solution is poured into the mold containing green fabric and copolymerization, it directly forms hydrogel in fabric surface and pore interior, obtains imitated plant leaf hydrogel composite material.The material gets rid of the dependence on hygroscopic salt, has water absorption and simulation effect stable, durability is good and the like advantages.

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 a washable stable humidity-sensitive printing paste composition, a humidity-sensitive printing paste and a preparation method and application thereof. The washing-resistant stable humidity-sensitive printing paste composition comprises humidity-sensitive resin, an interface anchoring agent, a rheology modifier, a latent cross-linking agent and water, the humidity-sensitive resin contains amino and / or hydroxyl, and the latent cross-linking agent is selected from oxime-terminated alicyclic polyisocyanates or derivatives thereof. The latent cross-linking agent has chemical inertness at room temperature and can ensure the rheological stability of the slurry in the printing process, in the baking process, an end-capping reagent in the latent cross-linking agent is dissociated, an isocyanate group and amino and / or hydroxyl in the humidity-sensitive resin are subjected to a cross-linking reaction to form a semi-interpenetrating network structure, and the structure allows water molecules to enter and exit, so that the moisture-sensitive printing ink is formed. The fabric has the humidity-sensitive response characteristic, excessive swelling and movement of hydrophilic chain segments can be limited, dissociation or falling of humidity-sensitive resin under the action of washing shearing force is prevented, and the humidity-sensitive characteristic and washing-resistant stability are improved.

The invention relates to the field of ink, in particular to bio-based elastomer heat transfer printing ink and a low-temperature microwave curing method thereof. The bio-based elastomer heat transfer printing ink at least comprises the following raw materials in parts by mass: 50-75 parts of a bio-based prepolymer, 5-10 parts of a cross-linking agent, 15-30 parts of an anti-pinhole agent, 0.5-1.5 parts of a curing catalyst, 5-15 parts of a pigment and 15-30 parts of a solvent. The bio-based elastomer thermal transfer printing ink finally prepared by the invention not only has an excellent transfer printing effect, but also can greatly improve the bio-based carbon content in the printing ink, and avoids the problems of environmental pollution and discontinuity; and on the other hand, compared with the traditional petroleum-based TPU ink, the required energy consumption is lower, the flexibility and the washability are also obviously improved, the pinhole defect is reduced, and the probability of secondary printing blooming caused by solvent migration is greatly reduced.

This application relates to the field of microbial fermentation technology, and specifically discloses an N-hydroxyamino-N'-acetylguanine blue, its fermentation method and application. The chemical name of the N-hydroxyamino-N'-acetylguanine blue is N-(5'-hydroxyamino-2,6,2',6'-tetraoxo-1,6,1',6'-tetrahydro-2H,2'H-[3,3'] bipyridylmethylene)-acetamide, and the molecular formula is C 12 H 10 O6N4; compared with N-acetylguanine blue, the absorption of N-hydroxyamino-N'-acetylguanine blue is deeper in color at UV611, and at the same time, the formation of hydrogen bonds with amino groups on the fiber can enhance the dyeing property of the dye on the fiber and improve the wash fastness.

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 provides a preparation method and application of low-bath-ratio and high-viscosity hydroxypropyl carboxymethyl composite starch ether, and relates to the technical field of starch deep processing. The method comprises the following steps: S1, premixing corn starch with a compound base catalyst and magnesium stearate, and spraying an ethanol water solution for alkalization; s2, adding epoxypropane to carry out first-stage etherification, and then adding sodium chloroacetate to carry out second-stage etherification; and S3, after the reaction is finished, performing vacuum drying, crushing and sieving to obtain the high-viscosity hydroxypropyl carboxymethyl composite starch ether. Wherein the composite alkali catalyst comprises sodium hydroxide, sodium carbonate and calcium oxide. The starch ether obtained by the method has the advantages of high substitution degree, high viscosity, low solvent consumption and low energy consumption, and overcomes the defects of the traditional semi-dry method.

The invention relates to a flame-retardant antibacterial water-repellent elastic fabric and a preparation method thereof. Yarns adopted by the fabric comprise spandex fiber yarns, combed cotton yarns and spandex elastic fiber yarns. A double-sided circular knitting machine is adopted to weave grey cloth, and the obtained grey cloth is at least subjected to water-repellent finishing to obtain the fabric, the combed cotton yarn is used for being woven into the outer layer of the gray fabric, the spandex fiber yarn is used for being woven into the inner layer of the gray fabric, and the spandex elastic fiber yarn is used for being woven into the middle connecting layer of the gray fabric. The spandex fiber yarn, the combed cotton yarn and the spandex elastic fiber yarn are woven to form a unique organization structure, so that the fabric has the advantages of the three materials; the gray fabric obtained by weaving is subjected to water-repellent finishing, so that the lasting flame-retardant antibacterial and water-repellent functional fabric is obtained, and the fabric can be used for light sports or casual coats.

An object is to maintain a chroma and an OD value of a printed image of a printed textile and a texture of the printed textile and to improve tackiness when an image is printed on a light-colored cloth by an inkjet textile printing method. As a solution, an inkjet textile printing method including steps A to C in this order is provided: a step A of preparing a light-colored textile pretreated with a pretreatment solution; a step B of applying by inkjet a white ink composition containing a white pigment, a water-dispersible resin, and water, to the pretreated light-colored textile; and a step C of applying by inkjet a chromatic color ink composition containing a chromatic color pigment, a water-dispersible resin, and water, onto an ink layer formed by the application of the white ink composition, in which an application amount of the white ink composition per unit area in an application region of the white ink composition is 3.0 to 13.0 times relative to an application amount of the chromatic color ink composition per unit area in an application region of the chromatic color ink composition in terms of solid content mass ratio.

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

Product use by means of the invention for dyeing and coloring or the like of substrates made of fibers, fiber cables, yarns made of cut and filament fibers, flat structures such as woven fabrics, knitted fabrics, warp-knitted fabrics, non-woven fabrics and ready-made clothing and home textiles and the like, in particular of textiles with 100% or with mixtures thereof. These can be made of plant and animal natural fibers, stem fibers, synthetic fibers of petrochemical or natural origin as well as special fibers such as soy fibers, milk fibers, bamboo fibers or fibers that are difficult to dye such as aramid, polypropylene.

The invention discloses leather-imitated superfine fiber layered synthetic leather and a production process thereof, and belongs to the technical field of synthetic leather. The production process of the synthetic leather comprises the following steps: carrying out superfine fiber alkali treatment and DMC / HEMAP / UV-1 monomer graft copolymerization modification; forming a fiber net by air laying and gradient needling; anionic water-based PU resin containing wood powder is used for impregnation reinforcement, and soft hydrolysis-resistant water-based PU resin is used for coating to form a porous surface layer; and performing wet solidification, bionic embossing, cationic dye dyeing and surface finishing to obtain a finished product. Through fiber modification, gradient structure, bi-component PU cooperation and process optimization, the problems that traditional synthetic leather is hard in hand feeling, poor in breathability, low in texture simulation degree, difficult to dye, weak in interlayer binding force and the like are solved, and the product has high simulation degree and excellent comprehensive performance and stability.

The invention belongs to the technical field of nano functional materials and intelligent textiles, and particularly discloses a preparation method and application of high-brightness nitrogen-doped carbon quantum dots based on phycocyanin. The method is used for solving the problems of large difference and poor reproducibility when the same biomass in different batches is used for preparing the carbon dots in the prior art. Comprising the following steps: (1) freeze-drying spirulina, and grinding into powder to obtain spirulina powder; (2) extracting phycocyanin by utilizing spirulina powder; (3) phycocyanin is added into the reaction container, then distilled water is added, the adding amount ratio of phycocyanin to distilled water is 1 g: 33.3-50 mL, and full stirring is conducted; and then, carrying out carbonization treatment, cooling to room temperature, collecting the solution, and dialyzing for 24 hours, so that the solution outside a dialysis bag is a purified carbon quantum dot solution. According to the method, the phycocyanin is used as a single nitrogen source for the first time, the reproducibility of preparing the carbon dots from the same biomass in different batches is good, and large-scale production is facilitated.

The invention relates to the technical field of dyeing and finishing, and particularly discloses a biological blue dye, a dyeing solution as well as a preparation method and application thereof. The pyridone dye is mixed into the ornamental blue dye, the ornamental blue light is adjusted, the ornamental blue light shifts to the cyan light, and the red light effect is weakened, so that the problems of reddish color and insufficient dyeing depth after ornamental blue dyeing can be effectively solved, and along with the increase of the mixing proportion of the pyridone dye, higher color depth can be obtained under the same dyeing concentration and number of times, and the dyeing effect is improved. The dry and wet rubbing fastness of the dyed cloth is improved by 0.5 level.

The present invention provides a pretreatment solution that can improve the wash fastness of images formed on fabrics. [Solution] The pretreatment liquid of the present disclosure is a pretreatment liquid applied to a fabric in a region including the ink discharge region before discharging the ink containing a pigment, and is characterized in that it contains a resin, and the storage modulus (G') of the dried upper layer component after centrifugation is 95 kPa or less at 25°C and 47 kPa or less at 160°C.

The invention provides a preparation method of a lyocell and polyester interwoven fabric, which is characterized in that the preparation method comprises preparation and dyeing and finishing processes of a lyocell polyester fabric, and the dyeing and finishing processes comprise a lyocell anti-fibrillation treatment process, a polyester dyeing process and a lyocell dyeing treatment process; wherein the lyocell anti-fibrillation treatment process comprises the following steps: adding an anti-fibrillation aid KR-6347 according to 1%-4%, then adding anhydrous sodium sulphate, treating for 8-15 minutes, heating to 60-70 DEG C, adding 10-25 g / L sodium carbonate, continuing for 30-50 minutes, then cooling, draining water and cleaning. The lyocell terylene fabric is woven into knitted single jersey through knitting equipment in a yarn matching mode of separating lyocell terylene, separating lyocell and spandex. The fabric structure and the dyeing and finishing process are reasonable, the fibrillation degree of the fabric is greatly reduced through the dyeing and finishing process, the fastness to washing is high, and the breathable effect of the fabric is better under the wet condition after dyeing and finishing.

The invention relates to the technical field of ink-jet printing, and discloses reactive dye ink-jet printing ink based on ionic association regulation and a printing method of the reactive dye ink-jet printing ink. According to the method, on the basis of a cationic compound with the relative molecular weight of 50-1000 in an ink system, the aggregate structure of the anionic surfactant is accurately induced to be controllably converted from a spherical structure to a wormlike or layered structure by virtue of the action of ionic bonds; under the action of not additionally adding a viscosity modifier, the rheological property and dynamic surface tension of reactive dye ink are accurately regulated and controlled, and the dynamic surface tension response rate is remarkably improved, so that the uniformity and stability of the morphology of ink droplets in inkjet printing are improved, the dynamic wetting behavior in the collision process of the ink droplets and a base material is effectively improved, and the printing quality is improved. And high-precision ink-jet printing of the reactive dye ink on the textile fabric is realized.

The application discloses a preparation method of active chitosan quaternary ammonium salt modified cellulose fabric based on a dispersion system, and belongs to the field of textile chemistry. The effective grafting of chitosan quaternary ammonium salt and nitrogen-containing heterocyclic monomers is realized by using a dispersion system, the active sites on the chitosan quaternary ammonium salt are increased, the covalent grafting effect of the active chitosan quaternary ammonium salt and the cellulose fabric is improved, the cellulose fabric is endowed with durable antibacterial function, the dyeing performance of the cellulose fabric in natural dyes and active dyes is improved, and when the cellulose fabric prepared by the method is dyed by using active dyes, the amount of neutral salt can be reduced.