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41results about How to "Good color fastness to washing" patented technology

Disperse dye composition and preparing method thereof

ActiveCN105860581AGood color fastness to lightGood color fastness to sublimationOrganic dyesMonomerDisperse dye
The invention discloses a disperse dye composition capable of improving strength and a preparing method thereof. The disperse dye composition comprises, by weight, 0.1-100 parts of C.I. disperse blue60, 0.1-50 parts of C.I. disperse green9, 0.1-50 parts of C.I. disperse blue354, 0.1-10 parts of C.I. disperse blue165 and 0.1-5 parts of disperse yellow. The preparing method of the disperse dye includes the following steps that 1, C.I. disperse blue60, C.I. disperse green9, C.I. disperse blue354, C.I. disperse blue165 and disperse yellow are taken according to the formula amount and mixed to obtain a mixed dye, wherein the disperse yellow is selected from C.I. disperse yellow211 and / or C.I. disperse yellow114; 2, water is added into the mixed dye obtained in the step 1, the weight dosage ratio of the mixed dye to the water is 1:(2-20), the mixture is mixed, and mixed slurry is obtained; 3, the mixed slurry obtained in the step 2 is sprayed and dried, and the disperse dye composition is obtained.
Owner:ZHEJIANG OUYA CHEM CO LTD

Heat-transfer printing technology for pure cotton cloth

The invention discloses a heat-transfer printing technology for pure cotton cloth. The heat-transfer printing technology comprises the following steps: (1) pretreatment of the pure cotton cloth: soaking the pure cotton cloth in an acrylic ester monomer solution for padding pretreatment, carrying out shaping and drying, and then carrying out graft polymerization modification according to a low-temperature plasma technology; (2) preparation of heat-transfer printing paper: printing transfer paper by utilizing a disperse dye, and drying the prepared heat-transfer printing paper and the disperse dye in an electric oven after printing; (3) heat-transfer printing: adhering the heat-transfer printing paper to the front surface of the pure cotton cloth subjected to graft polymerization modification on a heat-transfer printing machine for heat-transfer printing; (4) rolling for packaging and warehousing. The heat-transfer printing technology provided by the invention is novel in design, pollutant-free, environmentally friendly and lower in resource consumption; the pure cotton cloth printed according to the heat-transfer printing technology is bright in color, relatively high in color fastness to washing and softness, comfortable to wear, and broad in market prospect; the heat-transfer printing technology is a novel method for environment-friendly and efficient printing and dyeing of cotton and other fabrics containing natural fibers.
Owner:常熟新锦江印染有限公司

Unstable island type PA6/PU suede superfine fiber synthetic leather pad-dyeing process by using vat dye

The invention belongs to the technical field of acrylic fiber processing and mainly relates to an unstable island type PA6 / PU (Polyamide / (Poly Urethane) suede superfine fiber synthetic leather pad-dyeing process by using a vat dye. The unstable island type PA6 / PU suede superfine fiber synthetic leather pad-dyeing process by using the vat dye provided by the invention is capable of obtaining the unstable island type PA6 / PU suede superfine fiber synthetic leather through pad dyeing through the following steps: preparing a dyeing liquor by compounding the vat dye with an anionic migration inhibitor, compounding a reducing liquid from sodium hydrosulphite and caustic soda, and taking hydrogen peroxide as an oxidating liquid, and then carrying out the process flow of padding in the dyeing liquid, infrared predrying, drying, baking, padding in the reducing liquid, steaming, water washing, oxidizing for 2-4 times, twice soap-boiling, twice water washing and drying. The unstable island type PA6 / PU suede superfine fiber synthetic leather obtained through the pad-dyeing process provided by the invention has excellent color fastness to light, excellent color fastness to washing, excellent crockfastness and excellent chlorine bleaching resistance.
Owner:SHANDONG VOCATIONAL COLLEGE OF LIGHT IND

Dyeing method capable of improving dyeing performance of high-elastic nylon 6 fibers

The invention discloses a dyeing method capable of improving the dyeing performance of high-elastic nylon 6 fibers. The method comprises the steps of dyeing pretreatment, a dyeing process and a color fixing process. According to the dyeing method, the dyeing performance of the high-elastic nylon 6 fibers can be effectively improved, the dyeing rate, the fixation rate, the K / S value and the level dyeing performance of the fibers are remarkably improved, and the washing color fastness, the rubbing color fastness and the light color fastness of fabric are improved. The process is simple and efficient, the usage amount of dye can be remarkably reduced, the method is environmentally friendly, the adopted reagent is efficient in dyeing, bright in color and not prone to fading, and the efficient and lasting dyeing effect can be achieved. On the basis that the dyeing performance of the high-elastic nylon 6 fibers is enhanced, the simplicity, high efficiency and environmental friendliness of the dyeing process are further improved, and wide application of the high-elastic nylon 6 fibers and fabric can be promoted.
Owner:绍兴市柯桥区东纺纺织产业创新研究院

Dyeing method for improving dyeing performance of polyimide fibers

The invention discloses a dyeing method for improving the dyeing performance of polyimide fibers. The method comprises the steps of pretreatment liquid preparation, fiber pretreatment, fiber dyeing and fiber color fixation. According to the dyeing method provided by the invention, the dyeing performance of the polyimide fibers can be effectively improved, the fiber dye uptake, the fixation rate and the K / S value of the fabric are remarkably improved, and the wet color fastness and the rubbing color fastness of the fabric are improved. The process disclosed by the invention is simple in steps, high in dyeing efficiency, capable of remarkably reducing the use amount of cationic dyes and reducing environmental pollution, green and friendly; the adopted chemical pretreatment process is simple and efficient, and the dyeing performance of the polyimide fibers can be remarkably improved; and the cationic dyes are bright in color and not prone to fading, and the efficient and lasting dyeing effect can be achieved. According to the dyeing method for improving the dyeing performance of the polyimide fibers provided by the invention, on the basis that simple and efficient chemical pretreatment is carried out on the polyimide fibers, the dyeing performance of the polyimide fibers is enhanced, the dyeing efficiency of the dyeing process is further improved, the influence on the mechanical performance of the fibers is small, the environmental friendliness is improved, and wide application of the polyimide fibers and fabrics in the field of clothing can be promoted.
Owner:绍兴市柯桥区东纺纺织产业创新研究院

Preparation method and application of active hydrophilic formaldehyde-free color fixing agent

The invention relates to a preparation method of an active hydrophilic formaldehyde-free color fixing agent. The preparation method comprises the following steps: S1) stirring concentrated hydrochloric acid, slowly dropwise adding tertiary amine, carrying out a heat-preserved reaction, and regulating the pH value of the obtained solution to 3-4 by using tertiary amine; S2) carrying out heating to45 DEG C, slowly and dropwise adding epoxy chloropropane, keeping a temperature at 45-55 DEG C, conducting a reaction for 1.0-2.5 hours under a heat preservation condition so as to obtain a homogeneous solution, regulating the pH value, and performing cooling to obtain an intermediate product; and b) adding the intermediate product, polyethyleneimine and deionized water into a reaction bottle, slowly and dropwise adding epoxy chloropropane while stirring, carrying out a heat-preserved reaction at 20-40 DEG C for 5-7 hours, regulating the pH value to 6-7, and performing cooling to obtain the hydrophilic color fixing agent. The hydrophilic formaldehyde-free color fixing agent disclosed by the invention has a relatively high cation degree and reactive epoxy groups, and also has good hydrophilicity and color fixing effect; and after a cotton fabric is subjected to color fixing treatment with the agent, the washing fastness of the fabric reaches level 3-5 and accords with the national regulation that hygroscopicity is within 5 seconds in China, the finishing of a subsequent procedure can be reduced, and the use requirements of printing and dyeing plants are met.
Owner:DYMATIC CHEM

Preparation method of printing liquid containing purple sweet potato pigment

The invention discloses a preparation method for printing liquid containing a purple sweet potato pigment. The preparation method comprises the following steps: (1) uniformly mixing a surfactant, malic acid, a humectant, aloe gel, a viscosity regulating agent, a sterilizing agent and deionized water to obtain mixed liquid; (2) adding alkyd resin into the mixed liquid obtained in the last step, andstirring and mixing uniformly; (3) adding the purple sweet potato pigment into the mixed liquid in the step (2), and stirring and mixing uniformly; (4) filtering the mixed liquid obtained in the step(3) by using a filter membrane of which the aperture precision is not greater than 0.45 [mu]m, and taking filtrate, wherein the printing liquid comprises the following components in parts by weight:20 to 28 parts of the purple sweet potato pigment, 12 to 25 parts of the alkyd resin, 1 to 5 parts of the surfactant, 0.5 to 0.8 part of the malic acid, 8 to 12 parts of the humectant, 2 to 3 parts ofthe aloe gel, 2 to 10 parts of the viscosity regulating agent, 2 to 5 parts of the sterilizing agent and 60 to 70 parts of the deionized water. The printing liquid prepared by the preparation methodis good in printing fluency and has saturated and bright patterns, colour and lustre; a printed cotton fabric feels soft; both the colour fastness to washing and the colour fastness to rubbing can reach level 4.
Owner:FOSHAN GAOMING HAIDI CERAMIC RAW MATERIAL CO LTD

Pyrography ink with high ink bearing capacity and preparation method thereof

The invention provides pyrography ink with high ink bearing capacity and a preparation method of the pyrography ink. The pyrography ink comprises a pigment dispersion, a water-soluble organic solvent, water-soluble film-forming resin, a coalescing agent, a dispersing agent and a surfactant, the water-soluble film-forming resin is modified polyurethane resin with the glass transition temperature lower than-5 DEG C, the film-forming auxiliary agent comprises at least one of alkynediol, polyether modified organic silicon and alkyl diol, and the ratio of the film-forming resin to the film-forming auxiliary agent is 300: 1-150: 1. By controlling the addition amount of the coalescing agent, during film forming, the coalescing agent reduces the glass transition temperature of film-forming resin and accelerates the film forming speed of ink on a pyrograph medium, so that the ink can be rapidly fixed on the pyrograph medium and forms a film, the plasticization effect of the coalescing agent on the film-forming resin is realized, the conditions of halo ink, flowing ink, diffusion and the like are avoided, and the film-forming efficiency is improved. The problems that ink is low in ink bearing capacity and poor in compatibility with a transfer printing film are solved.
Owner:ZHUHAI FREE TRADE ZONE NEOJET APOLLOJET IMAGING MATERIALS

Production method of multilayer gauze invisible printed towel

The invention belongs to the technical field of towel production, and particularly relates to a production method of an invisible printed towel. The invisible printed towel is based on non-pure cotton multilayer gauze fabric, the upper surface layer and the lower surface layer of multilayer gauze are pure cotton layers, the middle layer or multiple layers are non-pure cotton layers containing chemical fiber yarns, and the characteristic that disperse dyes cannot be colored on pure cotton is utilized; the slurry containing the disperse dyes is printed on the non-pure cotton multi-layer fabric through a printing machine, so that the slurry permeates into the non-pure cotton layer in the middle; and after washing, the upper surface layer and the lower surface layer of the towel are white, and the middle layer of the towel is provided with printed patterns, so that the appearance with a hazy effect is achieved. The upper surface layer and the lower surface layer are made of white pure cotton materials, so that the washing and rubbing fastness is improved, the fabric is more suitable for skin-friendly use, meanwhile, the fabric contains chemical fibers, so that the fabric saves more time and has a quick-drying effect compared with a pure cotton fabric in the airing or drying process.
Owner:LOFTEX CHINA LTD
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