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109results about How to "High color fastness" patented technology

Ultra-high temperature high pressure dyeing method for aramid fiber textile

The invention discloses a method for dying kevlar fabrics under ultrahigh temperature and high pressure, which comprises: a preprocessing procedure under the ultrahigh temperature and the high pressure and a dying procedure under the ultrahigh temperature and the high pressure, wherein in the preprocessing procedure under the ultrahigh temperature and the high pressure, atmospheric pressure plasmas are used to process the kevlar fabrics for 1-5min, the processing temperature is 100-150DEG C, while in the dying procedure under the ultrahigh temperature and the high pressure, the temperature is 160DEG C-190DEG C, and the pressure intensity is 0.8-0.9MPa, wherein the plasma preprocessing procedure is an important procedure before the dying procedure under the ultrahigh temperature and the high pressure, since the processing for the plasma produces a plurality of active groups on the kevlar fabrics, which enables carriers to be better absorbed on the kevlar baric and thereby is beneficial for dying dye on the kevlar fabrics, simultaneously, the kevlar fabrics after dying under the ultrahigh temperature and the high pressure has high fastness, fresh color and soft hand feeling, and the washing color fastness and the abrasion color fastness of the kevlar fabrics are improved better.
Owner:ZHEJIANG SCI-TECH UNIV

Ceramic anodizing process for frosted glaze of aluminum alloy

InactiveCN105297105AMeet viewing angle requirementsHigh color fastnessAnodisationWeather resistanceSmooth surface
The invention relates to the technical field of anodizing processes, in particular to a ceramic anodizing process for a frosted glaze of aluminum alloy. The process includes the following steps of (1) machining of the aluminum alloy, (2) three-stage polishing, (3) sleeking, (4) racking, (5) cleaning, (6) drying, (7) sand blasting, (8) racking, (9) degreasing, (10) chemical polishing, (11) neutralization, (12) whitening, (13) neutralization, (14) ceramic anodizing, (15) dyeing and hole sealing, (16) drying, (17) C-angle highlighting, (18) racking, (19) degreasing, (20) neutralization, (21) ceramic anodizing, (22) dyeing and hole sealing, and (23) drying. The machined product is polished into a smooth surface similar to a mirror surface, so that basic requirements of the smooth glaze surface are met; then the matted or frosted effect is achieved through the sand blasting process, so that viewing angle requirements of customers are met; by means of the method that the basic brightness of the sand surface is improved through the chemical polishing principle, preparations are made for the frosted ceramic anodizing process; products with frosted and matted glazes are produced through the ceramic anodizing process, the color fastness of an oxidation film is improved, and the good functions of abrasion resistance, corrosion resistance and weather resistance are achieved.
Owner:HUIZHOU ZEHONG TECH CO LTD

Environment-friendly loosely-knitted ultra-fine woolen-sweater-imitating fabric and preparation method thereof

The invention relates to environment-friendly loosely-knitted ultra-fine woolen-sweater-imitating fabric and a preparation method thereof. One side of the fabric imitates a woolen sweater, and the other side of the fabric adopts a napping structure; and the fabric adopting the napping structure is made of ultra-fine denier fibers, particularly biomass PDT ultra-fine denier fibers. The preparation method comprises the steps as follows: gray fabric inspection; fabric arrangement; end sewing; de-oiling and dyeing; adding of a hydrophilic pilling agent into a cylinder; dewatering; drying; slitting; brushing; carding; shearing; fleecing; finished product finalization; inspection; coiling; and packaging. According to the designed environment-friendly loosely-knitted ultra-fine woolen-sweater-imitating fabric, one side of the fabric adopts a structure similar to the woolen sweater, and the side has the excellent characteristics of softness, high resilience, light weight and the like; the other side of the fabric adopts a polar fleece structure, the suede is fluffy, and the good heat-insulation effect is achieved; and large-scale production can be conducted through existing equipment, so that the economic benefit and the social benefit are increased.
Owner:QUANZHOU HAITIAN TEXTILE TECH CO LTD

Process of performing fixation on reactive dyed cotton fabric with reactive cationic color fixing agent

InactiveCN104060485AHigh color fastnessImprove K/SDyeing processReactive dyeColour fastness
The invention relates to a process of performing fixation on a reactive dyed cotton fabric with a reactive cationic color fixing agent. Reactive dyes are finite in fixation quantity and poor in washability when being used for dyeing fabrics with deep colors, so that the dyeing fastness is unqualified, and the color fixing agent is needed for improving the dyeing fastness. The take-up ratio of a padder is set as 85%-95%; an aqueous solution of the reactive cationic color fixing agent with the concentration of 15g/L-25g/L is prepared, wherein the reactive cationic color fixing agent is epoxy cationic polymer P (DMDAAC (Diallyl Dimethyl Ammonium Chloride)-AGE (Allyl Glycidyl Ether)); a process of padding is carried out by dipping for twice and rolling for twice; the fabric is dried at 80 DEG C, subsequently baked at 110-130 DEG C for 3-8 minutes, then washed and dried. The reactive cationic color fixing agent is applied to fixation of the cotton fabric, and the fabric with color fixed by the padding method has the characteristics that the soaping and fading fastness reaches grade IV-V, the staining fastness reaches grade V, the dry rubbing fastness reaches grade IV, the wet rubbing fastness reaches grade III-IV, the pressing-ironing fastness reaches grade IV-V, and the value of K/S is 3.85. The reactive cationic color fixing agent is capable of effectively improving various color fastnesses and K/S values of the dyed cotton fabric.
Owner:SHAANXI UNIV OF SCI & TECH

Aluminum alloy mirror surface glazed ceramic anodic oxidation process

The invention relates to the technical field of anodic oxidation processes, in particular to an aluminum alloy mirror surface glazed ceramic anodic oxidation process. The aluminum alloy mirror surface glazed ceramic anodic oxidation process includes the following steps: (1) an aluminum alloy is machined; (2) three-section polishing is carried out; (3) light removing is carried out; (4) upward hanging is carried out; (5) washing is carried out; (6) drying is carried out; (7) score-free chamfering is carried out; (8) upward hanging is carried out; (9) degreasing is carried out; (10) white passivation is performed; (11) neutralization is carried out; (12) ceramic anode oxidization is carried out; (13) dyeing and hole sealing are carried out; and (14) drying is carried out. A physical three-section finishing polishing mode is adopted, a machined product is polished into a mirror surface, and the requirement for the high mirror surface is met; meanwhile, chamfering is performed with the assistance of a score-free chamfering tool, and the requirement of a client for the visual angle is met; the method that polishing material lines are covered on the basis of the principle of chemical white passivation is adopted, and guarantees are provided for the follow-up ceramic anode; and finally the ceramic anodic oxidation process is used for producing high-glaze products, the colors can be high-glaze ceramic white or other colors according to the requirement of the user, dyeing and sealing are unified, the color fastness of an oxidation film layer is improved, and the oxidation film layer has good wear resistance, good corrosion resistance and good weather-proofness the using process.
Owner:HUIZHOU ZEHONG TECH CO LTD

Tencel and linen-cotton blended fiber dyeing method

InactiveCN106120401AHigh color fastnessNot easy to color flowersDyeing processSodium carbonateEnzyme
The invention relates to the technical field of dyeing, in particular to a tencel and linen-cotton blended fiber dyeing method. The method comprises the steps that pretreatment is conducted, wherein blended fibers and water are added into a dye vat, hydrogen peroxide, SD-1 and sodium silicate are added, the temperature is increased to 98 DEG C, and heat preservation is conducted for 60 min; the temperature is decreased to 30 DEG C, a deoxidizing enzyme is added, and dyeing is conducted after heat preservation is conducted for 20 min; auxiliaries and dye are added, heat preservation is conducted for 10 min, the temperature is increased to 50 DEG C, and heat preservation is conducted for 15 min; 1/10 of anhydrous sodium sulphate is added, heat preservation is conducted for 10 min, 3/10 of anhydrous sodium sulphate is added, heat preservation is conducted for 10 min, 6/10 of anhydrous sodium sulphate is added, and heat preservation is conducted for 10 min; the temperature is increased to 60 DEG C, heat preservation is conducted for 15 min, 1/10 of sodium carbonate is added, heat preservation is conducted for 10 min, 3/10 of sodium carbonate is added, heat preservation is conducted for 10 min, 6/10 of sodium carbonate is added, and heat preservation is conducted for 10 min; washing is conducted to be clean, the temperature is decreased to 30 DEG C, glacial acetic acid is added, heat preservation is conducted for 10 min, a soaping agent is added, the temperature is rapidly increased to 80 DEG C, heat preservation is conducted for 10 min, washing is conducted to be clean, the temperature is cooled to 30 DEG C, a softening agent is added, the temperature is increased to 40 DEG C, heat preservation is conducted for 20 min, and the product is taken out of the dye vat. According to the tencel and linen-cotton blended fiber dyeing method, color fastness can be effectively improved, and dyeing defects are not prone to occur.
Owner:博森纺织科技股份有限公司

Tea dyeing method of native cloth

The invention provides a tea dyeing method of native cloth. The tea dyeing method of native cloth comprises the following steps: 1. preparing tea dyeing liquid, namely, boiling tea leaves and water in a pot for 30-40min, and filtering to obtain the tea dyeing liquid; 2. performing pretreatment, namely, soaking native cloth into soybean milk for 30-40min; 3. performing tea dyeing for the first time; 4. preparing mordanting liquid, namely, preparing mordanting liquid from white alum and water; 5. performing mordanting, namely, placing the native cloth subjected to tea dyeing for the first time into the mordanting liquid for mordanting; 6. carrying out tea dyeing for the second time, namely taking out the mordanted native cloth, squeezing out water, placing into the tea dyeing liquid, adding table salt and boiling for 30-40min; and 7. rinsing and drying in air. According to the tea dyeing method of native cloth, the native cloth is pretreated by soybean milk before being dyed, so that protein is attached to the native cloth and the native cloth is easy to color, white alum water is used as a mordanting agent for fixing color of the native cloth subjected to tea drying for the first time, table salt is added during tea dyeing for the second time for further color fixation, and the final native cloth subjected to tea dyeing has a good coloring effect and high color fastness.
Owner:HANGZHOU XIAOXIANGSANXUN HAND WOVEN FABRIC DEV

Preparation method of dope-dyed cotton linter composite filament

The present invention relates to a preparation method of dope-dyed cotton linter composite filament. The method comprises the steps of: 1) preparing a dye stock solution by dissolving a reactive dye in water to prepare a dye stock solution with reactive dye concentration of 20-40wt%; 2) preparing a spinning solution by adding the dye stock solution to a dispersion liquid of cotton linters, wherein the dispersion liquid of cotton linters is an aqueous solution of carboxymethyl chitosan, and the addition amount of the dye stock solution is 1-3.5wt% of the dispersion liquid of cotton linters calculated by the weight of the active dye; stirring uniformly and heating to 65-85 DEG C to obtain the dope-dyed spinning solution; 3) preparing a coagulating bath by dissolving citric acid and lemon sodium in water to prepare the coagulating bath, wherein the concentration of the citric acid in the coagulating bath is 35-45g / l, and the concentration of sodium citrate is 0.8-1.2g / l; and raising the temperature of the coagulating bath to the same temperature of the spinning solution; and 4) using the coagulating bath to conduct spinning on the spinning solution by a conventional method. The composite filament provided in the invention has high color fastness and high utilization rate of reactive dye.
Owner:ZHEJIANG TEXTILE & FASHION COLLEGE
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