37results about How to "Increase the percentage of dyeing" patented technology

The invention discloses an aid for dyeing cotton textiles shown in a structural formula (I), and also discloses a method for preparing the aid. The method comprises the following steps: weighing 7.0 to 8.0 percent of 3-chloro-2-hydroxypropyl trimethylammonium chloride, 1.0 to 2.0 percent of sodium hydroxide, 1.0 to 4.0 percent of polyamine, 3.0 to 4.0 percent of cyanuric chloride, 0 to 2.0 percent of aniline, 0.5 to 1.0 percent of sodium carbonate, 11 to 12 percent of normal temperature deionized water a, 4.0 to 5.0 percent of normal temperature deionized water b, and 65.5 to 67.5 percent of deionized water c at 1 to 2 DEG C; dissolving the sodium carbonate in the deionized water b to prepare aqueous solution of sodium carbonate; adding the deionized water a, the 3-chloro-2-hydroxypropyl trimethylammonium chloride and the sodium hydroxide to a reaction kettle, and stirring the mixture; adding the polyamine to the reaction kettle, and heating the kettle to 85 to 90 DEG C to perform reaction for 3 to 5 hours; adding the deionized water c and the cyanuric chloride to perform reaction for 2 to 4 hours, dripping the aqueous solution of sodium carbonate to enable the pH value to be between 4 and 6 so as to prepare the aid. The aid can be used for performing pad dyeing and dip dyeing on the cotton textiles. The aid, the preparation method and the dyeing method improve the dyeing percentage and fixation percentage of active pigment for cotton, and reduce the discharge value of waste pigment.

The invention discloses a preparation method and an application method of a low-temperature low-chromium dyeing auxiliary agent of an acidic medium dye for wool. The preparation method comprises the steps that: 1, protein powder is prepared by using waste duck feather, wherein (1) the duck feather is subjected to pretreatment; (2) the suck feather is subjected to a dissolving treatment; and (3) duck feather protein powder is prepared; 2, a sodium hydroxide solution is prepared, and the sodium hydroxide solution is used for dissolving the duck feather protein powder; 3, sodium hydroxide, triethanolamine, and epichlorohydrin are adopted for preparing a cationic quaternary ammonium salt cross-linking modification agent WLS; and 4, the low-temperature low-chromium dyeing auxiliary agent for the acidic medium dye is prepared. The auxiliary agent can be used as a wool modification agent. After wool fibers are modified, wool fiber dyeing properties of acidic medium dyes are greatly improved, dye uptake percentage rate can be improved, mordant absorption performance of the dye is improved, chromium pollution in dye wastewater is reduced, wool fiber low-temperature low-chromium dyeing is realized, and waste duck feather keratin is effectively utilized. After modification, the wearability of wool products is improved.

The invention discloses a modifying and dyeing method for a polyamide textile by using tetrabutyl titanate and reactive dye, comprising the following steps of: repeatedly washing the polyamide textile in ultrasonic oscillation at the temperature of 60-90 DEG C by respectively using deionized water and absolute ethyl alcohol with mass concentration of 95%, and drying; then, processing the polyamide textile with the tetrabutyl titanate and the reactive dye; finally, washing the polyamide textile for 10-30 minutes with a cleaning solution at the temperature of 95 DEG C according to a bath ratio of 1:30-50, repeatedly washing the polyamide textile by respectively using hot water and cool water, and drying or naturally airing the polyamide textile to get the modified and dyed polyamide textile. With the method provided by the invention, production procedures are greatly simplified, material cost is saved, and additional value of products is improved. The modified and dyed polyamide textilehas excellent color fastness to dry and wet frictions, scrubbing and lighting; and polyamide textile has higher dye uptake and is dyed uniformly, after being washed for 30 times, the dyed polyamide textile still has better antibacterial property.

The invention discloses a preparation method and application of a leveling agent XDR for high-temperature and high-pressure dyeing of polyester fibers by disperse dyes. The preparation method is mainly characterized in that fatty alcohol-polyoxyethylene ether, alkyl sodium sulfonate, alkyl sulfate sodium, fatty amine polyoxyethylene ether, urea and purified water are uniformly mixed to obtain the leveling agent XDR for high-temperature and high-pressure dyeing of polyester fibers by disperse dyes. The invention also discloses a method for dyeing polyester fibers and polyester fiber blended products by use of the leveling agent XDR for high-temperature and high-pressure dyeing of polyester fibers by disperse dyes. After adoption of the prepared leveling agent XDR for high-temperature and high-pressure dyeing of polyester fibers by disperse dyes, the oriented adsorption density of surfactant molecules on the surfaces of disperse dyes particles is remarkably improved, the interfacial tension between the dye particles and water and the average grain diameters of the dyes particles are obviously reduced, the solubility of the dyes and the dyeing percentage of the dyes to the fibers are remarkably improved, and agglomeration of the dyes and nonuniform dyeing can be dramatically reduced.

The invention discloses a dyeing and finishing technology for PFY (polyester filament yarn) Huayao fabric. The technology comprises an open-width desizing process, a dyeing process and a setting process; a dyeing agent adopted in the dyeing process comprises a dyeing auxiliary and a dye, the dye is a disperse dye, and the dyeing process adopts a high-temperature and high-pressure overflow dyeing machine for dyeing; the initial dyeing temperature of the dyeing process is 90 DEG C, and the heat insulation time is 10 min; the formula of the dyeing auxiliary comprises components as follows: glacial acetic acid with concentration of 0.8 g/L, a superfine polyester fiber high-temperature levelling agent TF-212K with concentration of 1.2 g/L, a high-temperature levelling agent MDL01 with concentration of 0.8 g/L, peregal O with concentration of 0.2 g/L, a color-remanding agent S-8231 with concentration of 0.2 g/L and a chelating disperse agent TF-510C with concentration of 0.8 g/L. With formulation of the appropriate open-width desizing process, dyeing process and setting process, the dyeing effect of the fabric is improved, dyeing uniformity is good, so that the fabric has high color fastness, good color repeatability and good dimensional stability, touches good and meets the related wearing requirement.

The invention discloses a novel levelling agent for dyeing pure cotton and a dyeing method thereof and belongs to the pure cotton printing and dyeing industry. The levelling agent comprises the following components in percentage by weight: 5-9% of methylene-bis naphthalene sulfonate, 7-10% of lignosulphonate, 2-6% of anhydrous sodium sulphate, 1-3% of carboxymethyl cellulose, 0.5-1% of chondroitin sulfate, 0.1-0.3% of triethanolamine and the balance of water. The invention further discloses a dyeing process of the levelling agent. By virtue of the novel levelling agent for dyeing pure cotton and a dyeing method thereof, the dyeing time can be shortened, the pure cotton fabric has an excellent levelling effect, and further the levelling agent has fixation, pliancy and antibiotic effects on the pure cotton fabric, is capable of improving the process efficiency and has favorable market popularization value.

The invention provides a fabric printing and dyeing device, comprising a printing head guide rail, an ink jet type color printing head, a control cabinet display screen, a control cabinet, an exhaust fan and an electronic accelerator mechanism, wherein the electronic accelerator mechanism comprises an electronic accelerator launching gun, a launching gun guide rail, a radial transmission channel and an electronic accelerator; the printing head guide rail is arranged to be vertical to an advancing direction of a fabric during printing and dyeing, and the launching gun guide rail is arranged in parallel to the printing head guide rail. When the fabric is longitudinally wound forwards, the fabric is firstly modified through high-velocity electron radiation below the launching gun of the electronic accelerator, and then printed and dyed by the ink jet type color printing. The fabric printing and dyeing device can improve the dyeing property of the fabric and obviously improve the dyeing color fastness, and can be used for only dyeing the parts of the fabric, to be cut, therefore dyes are saved and waste water treatment is reduced.

The invention discloses a cashmere fiber dyeing process based on a lanasol dye. The cashmere fiber dyeing process comprises the following steps: S1, adding cashmere fibers and a bath liquor to a vat, wherein the bath ratio of the dye liquor is 1: 40; S2, increasing the temperature to 40 DEG C, adjusting the pH value of the dye liquor to 6.5, orderly adding a rare earth solution, Albegal B, anhydrous sodium sulphate and the lanasol dye; S3, gradually heating the dye liquor and preserving heat, keeping the temperature at 95 DEG C and preserving heat for 60-70 min; S4, reducing the temperature to 85 DEG C, adjusting the pH value of the dye liquor to 8.5 and maintaining for 10-15 min; S5, continuously reducing the temperature to the range from 20 to 30 DEG C, and flushing the cashmere fibers to finish dyeing. The cashmere fiber dyeing process provided by the invention is simple and has little harm on the cashmere fibers; the dyed finished product is bright and full in color, good in color fastness and soft in hand feeling. Moreover, rare earth chloride is further added to the dye so as to further improve the dye uptake of the cashmere fibers.

The invention discloses an ultrasonic wave dyeing method, comprising the steps of: A, putting a prepared dye into an ultrasonic wave cleaner, and increasing a temperature to reach 65 DEG C; and B, putting a fabric in, starting a 40 KHz ultrasonic wave, gradually heating in a manner of raising 0.5 DEG C per minute until the temperature is 90 DEG C, and gradually cooling to 50 DEG C in a manner of reducing 1.5 DEG C per minute. According to the ultrasonic wave dyeing method, the penetrating power of the dye can be improved, the dyed fabric is not easy to fade and is washing-resistant, and the dyeing is uniform.

The invention discloses a method for improving dyeing performance of flax short fiber. According to the method, the flax short fiber is taken as a raw material and is dipped in a penetrant JFC solution, treated through cationic modification, washed with warm water, neutralized with peroxyacetic acid, washed with warm water, dyed with active dyes, washed with cold water, subjected to high-temperature soaping, washed with cold water, dewatered and dried. The method has the advantages that the flax short fiber has positive charge through cationic modification, adsorption of anionic dye is increased, the dyeing percentage is increased by 10.3%-11.8%, the softness and the extensibility are increased, the split degree and the spinnability of the short fiber are improved, the dry and wet rubbingfastness is improved by 0.5-1 grade after dyeing, the method is more environmentally friendly than a conventional dyeing process of the flax short fiber, and the processing and application performanceare improved. The physical indexes and the appearance quality of produced combed short flax high-count yarn meet the requirements of knitted fabric and are equally matched with long flax with the same linear density.

The invention discloses a dyeing auxiliary and an application thereof to dyeing assistance of disperse dyes. The dyeing auxiliary comprises following components in percentage by mass: 40%-68% of polyoxyethylene aliphatic alcohol ether, 2%-4% of polyoxyethylene stearate, 5%-8% of triethylene glycol monobutyl ether, 5%-12% of N-alkyl betaine, 6%-10% of polyamide-polyamine-epichlorohydrin and 3%-5% of chitosan. According to the dyeing auxiliary, polyoxyethylene aliphatic alcohol ether is taken as a main component, polyoxyethylene stearate is added to realize compounding synergistic interaction with polyoxyethylene aliphatic alcohol ether, and therefore, the solubilizing dyeing effect of the dyeing auxiliary is improved; the dyes are promoted to be more powerfully combined with fibers with addition of triethylene glycol monobutyl ether, cloud point of polyoxyethylene aliphatic alcohol ether is increased with addition of N-alkyl betaine, contact probability of the dyes and the fibers is increased with addition of polyamide-polyamine-epichlorohydrin, diffusion rate of the dyes in the fibers is increased with addition of chitosan, and dye uptake of the dyes is increased.

The invention discloses a method for dyeing a phase-change temperature-adjustable viscose fiber with erythrosine. The method is characterized in that the phase-change temperature-adjustable viscose fiber is pretreated with a cationic etherifying agent so as to allow the surface of the treated phase-change temperature-adjustable viscose fiber to be positively charged, so pigment adsorption capability is substantially enhanced, electrostatic attraction to pigment negative ions is realized, and the number of dye sites for dye up-take of erythrosine on the phase-change temperature-adjustable viscose fiber is increased, so the dye up-take rate and color fastness are substantially improved. Therefore, the method realizes ecological environment-friendly high-color-yield dyeing of the phase-change temperature-adjustable viscose fiber with the erythrosine pigment.

The invention discloses a dyeing and finishing technology for a high-elastic habijabi fabric. The dyeing and finishing technology comprises a pretreatment process, a dyeing process and a setting process, wherein the pretreatment process comprises an open-width desizing process, a machine cylinder cloth scouring process, a pre-setting process and a slack alkali peeling process which are conducted in sequence; a dyeing agent adopted in the dyeing process is prepared from a dyeing additive and dyes which are disperse dyes; in the dyeing process, dyeing is conducted by using a high-temperature andhigh-pressure airflow dyeing machine, when the temperature of a dyeing vessel of the dyeing machine reaches 45 DEG C, the dyeing additive and the disperse dyes start to be injected respectively, andthe pH value of the dyeing bath is 5-6. Through the reasonable design of the pretreatment, dyeing and setting processes, the dyeing effect on the fabric can be improved, the dyeing uniformity and thecolor fastness of the fabric can meet requirements of customers, moreover, the elasticity of the fabric cannot be damaged, and the fabric is high in deformation memory property, soft in handfeel and high in dimensional stability.

The invention discloses a scutellaria baicalensis dyeing process of a polyester ribbon and relates to the technical field of biological environmental protection. The scutellaria baicalensis dyeing process comprises the following steps: (1) scutellaria baicalensis dye preparation; (2) steam treatment; (3) dyeing. The scutellaria baicalensis dyeing process disclosed by the invention has the advantages that when a polyester ribbon dye is prepared, a pigment contained in scutellaria baicalensis is taken as a natural dye; the scutellaria baicalensis is non-toxic and harmless, has a certain healthcare effect on a human body and has relatively good wetting and dyeing effects when being taken as a dye component of the polyester ribbon; the obtained polyester ribbon is soft and comfortable.

The present invention relates to a soybean protein fiber dyeing adjuvant. It is characterized by that it contains 0.50-0.8% (on weight of fabric) of alkyl-polyoxyethylene non-ionic surfactant, 10-30g/l of anhydrous sodium sulfate, it uses formic acid to regulate pH value of dye bath to 4.5-5.5, then uses caustic soda to regulate pH value of dye bath to 11. Besides, in said adjuvant 0.25-0.505 (on weight of fabric) of aluminium salt is also contained; the described aluminium salt is any one of aluminium sulfate, aluminium trichloride and alum or their mixture. Said invention also provides the concrete steps of said dyeing process by using said dyeing adjuvant and soybean protein fiber.