230results about How to "Improve color fixation" patented technology

The invention relates to an anhydrous recycling dyeing method of an activated dye. The method comprises the following steps: adding the dye to a polar organic solvent; adding electrolyte and organic alkali, and dissolving, so as to obtain a dye bath, wherein the proportional relation of the dye to the polar organic solvent to the electrolyte to the organic alkali is (0.5-30g):1L:(0-10g):(0.1-30g); pre-swelling a pure cotton fabric in the polar organic solvent at 50-150 DEG C for 0.5-24 hours; then dyeing in the dye bath at 45-130 DEG C for 0.5-3 hours at the dyeing bath ratio of 1:10 to 1:50; and cleaning and drying, so as to obtain the dyed fabric. The residual dye liquid generated in the method disclosed by the invention does not contain a hydrolyzed dye, and can achieve recycling of dye liquor just by directly supplying the dye and assistants.

The invention discloses a low-temperature dyeing and finishing technology of cottonette. The technology comprises the following steps: pretreatment; preshaping; modification treatment; dyeing; mordant removing; soaping; color fixing; post-treatment; drying; shaping; calendaring; rolling. According to the technology, pretreatment is carried out through the adoption of helicase and alpha-amylase, and modification treatment is carried out before dyeing, so that the property of the cottonette is fundamentally modified, and the dye-uptake of the fabric is increased; during the dyeing procedure, large quantities of alkaline substances and inorganic salt are not used, and a levelling agent, a low-temperature dyeing accelerant, a migration inhibitor and a dispersing agent are added, so that the dye uniformity is improved; during the whole dyeing process, the temperature is lower than 80 DEG C, and the dyeing process belongs to low-temperature dyeing, so that energy consumption is reduced; self-cleaning treatment is added in post-treatment, so that the self-cleaning capacity, wrinkle resistance and water washable firmness of the fabric are improved; post-treatment is carried out through the adoption of silk fibroin and sericin, so that the pilling resistance and antistatic property of the cottonette are improved; the whole technology is environment-friendly and free of pollution.

The invention provides a synthetic leather surface conditioning agent. The synthetic leather surface conditioning agent comprises, by weight, 60-80 parts of aqueous polyurethane resin, 20-40 parts of water, 0.5-1.0 part of an aqueous wetting leveling agent, 0.5-1.0 part of an aqueous antifoaming agent, 1-2 parts of an aqueous thickening agent, 5-10 parts of aqueous matting powder, 1-5 parts of an aqueous slip agent and 5-10 parts of an aqueous wax emulsion. The aqueous polyurethane surface conditioning agent has effects of dye fixation and wear resistance on the synthetic leather surface, makes synthetic leather surface fine and smooth, does not contain VOC, does not cause resource waste and environmental pollution, satisfies safety, environmental friendliness and energy saving requirements and is conducive to human health.

The invention relates to a continuous paint dyeing padding machine with an infrared pre-drying device. The padding machine comprises a fabric inlet pre-processing device, a padding system, a drying system and a fabric outlet processing device which are sequentially arranged. The drying system comprises an infrared pre-drying device and a steam drying device. The infrared pre-drying device comprises two to five pre-dying mechanisms; each pre-drying mechanism comprises a pair of frame parts; and each pair of frame parts is provided with an infrared emitter. The continuous paint dyeing padding machine is characterized in that the front part of each row of infrared emitters is provided with a shielding device; when the padding machine is in use, the shielding device is arranged at a keep-clear position; and when the padding machine is in a shutdown state, the shielding device is arranged at a shielding position. Furthermore, each pair of frame parts can be arranged in a close state or an open state corresponding to the rolling of a first frame. Therefore, the padding machine has protection effect when in use, better dyeing effect and convenient maintenance.

The invention discloses a dyeing and finishing process for linen and cotton blended fiber fabric. The dyeing and finishing process comprises preprocessing, pre-sizing, modified processing, dyeing, mordant removing, soaping, color fixing, after finishing, drying, sizing, calendaring and rolling. Helicase, scouring enzyme and alpha-amylase are used for pretreatment, modification treatment is adopted before dyeing, the performance of linen and cotton blended fabric is modified fundamentally, and the dye-uptake rate is increased; the dyeing procedure does not require a large quantity of alkaline substances and inorganic salt, a leveling agent, substitutive alkali, a migration inhibitor and a dispersing agent are added, the dye uniformity is improved, environment pollution is avoided due to use of natural dye, and requirements for environmental protection are met; self-cleaning processing is added in the after finishing procedure, and the self-cleaning capacity, the crease-resistant performance, the washing resistance and the color fastness of the fabric are improved; crease-resistance finishing is added, and the crease-resistant performance of the fabric is improved; the whole process is environment-friendly and pollution-free.

The invention discloses a dyeing and finishing process for polyamide fabric. The provided process comprises pretreatment, pre-setting, modified processing, dyeing, soaping, dye fixation, post-finishing, drying, setting, calendering and rolling. Supersonic waves are employed for pretreatment, fabric is subjected to low temperature plasma processing before the dyeing step, then 2,3-epoxy propyl trimethyl ammonium chloride is employed for modification processing of the fabric, the dyeing degree of the fabric is raised, and difficulty of the subsequent dyeing step is lowered. During the dyeing step, a lot of alkaline substances and inorganic salt are not used, natural dyes are employed, colophony powder is added as a dye-fixing agent, the dye-fixing effect is enhanced, environment pollution is avoided, and green environmental protection requirements are met. Montmorillonite is employed for modification processing and flame retardation processing of the fabric, and thus the flame retardation of the fabric is high. Anti-yellowing reagents are used both in the pre-setting and setting steps, and thus the final fabric is not easy to turn yellow.

The invention discloses a disperse/activated one-emulsion paste printing dye, mainly prepared from the following components: composite paste slurry, an alkaline agent, reserve salt, urea, activated dye, disperse dye and water, wherein the composite paste is mainly prepared from the following components: 60% of sodium alginate, 20-30% of sodium polyacrylate, 5-15% of polyethylene glycol 2000 and 5% of polyvinyl pyrrolidone. A printing technology of the one-emulsion paste printing dye comprises the steps of printing, drying, baking (at the temperature of 180 DEG C for 7 minutes), washing by cold water, washing by alkaline water (at the temperature of 95 DEG C for 3 minutes), washing by hot water (at the temperature of 80-90 DEG C), washing by cold water, neutralizing and drying; after that, carrying out post-boarding and tentering. The disperse/activated one-emulsion paste printing dye successfully solves the problems that a disperse dye and an activated dye are poor in compatibility during one-emulsion paste printing, the paste pH value is sensitive to the disperse dye, the disperse dye and the activated dye are low in color yield percentage and serious in white ground contamination, a cloth cover effect is poor since the disperse dye and the activated dye are large in dyeing difference of fibers, and the like; the printing technology is more reasonable in process, clean and environment-friendly in production and stable in product quality.

The invention discloses a fabric formaldehyde-free fixing agent. The fixing agent comprises the following raw materials in parts by mass: 10-15 parts of poly dimethyl diallyl ammonium chloride, 15-18 parts of 2-hydroxypropyltrimethyl ammonium chloride chitosan, 25-34 parts of water, 20-25 parts of ethanol and 5-10 parts of fatty alcohol polyoxyethylene ether. The fixing agent disclosed by the invention has an excellent fixation effect, and can effectively improve colour fastness of fabric dyes and wet rubbing fastness in the processes of dyeing and printing. The fabric treated by the fabric formaldehyde-free fixing agent does not discolor.

The invention discloses a dyeing and finishing process of polyester and cotton blended fiber fabric. The process comprises pretreatment, presetting, modification treatment, dyeing, mordant removal, soaping, color fixing, after finishing, drying, sizing, calendaring and rolling. Snailase and alpha-amylase are adopted for pretreatment, modification treatment is adopted before dyeing, the polyester and cotton blended fabric is modified fundamentally, and the dye-uptake of the fabric is increased; in the dyeing procedure, fewer alkaline substances and inorganic salt are used, a dye leveler, substitution alkali, a migration inhibitor and a diffusant are added, the dye leveling performance is improved, natural dye is used, environmental pollution is avoided, and the environment-friendly requirement is met; self-cleaning treatment is added during aftertreatment, and the self-cleaning capacity, the crease-resistant performance, the wash durability and color fastness are improved; silk fibroin and sericin are adopted for afterfinish, and the anti-pilling performance and the antistatic performance of the fabric are provided; the whole process is environment-friendly and pollution-free.

The invention provides a cationic color fixing agent and a preparation method and application thereof. The cationic color fixing agent is obtained by polymerization reaction of an oil-soluble monomer, a cationic monomer and a reactive monomer in a solvent under the action of a radical initiator, wherein the oil-soluble monomer is one or the combination of several of styrene, acrylonitrile and acrylate; the cationic monomer is one or the combination of acryloxyethyl alkyl quaternary ammonium salt and/or allyl alkyl quaternary ammonium salt; the reactive monomer is one or the combination of several of allyl glycidyl ether, hydroxyl-containing acrylics, vinyl trimethoxy silane, vinyl triethoxy silane, acrylamide, crylic acid and methacrylic acid. The cationic color fixing agent is insoluble in water and can be dissolved in a weak polar solvent and/or non-polar solvent; besides, after non-aqueous solvent dyeing of reactive dyes, the cationic color fixing agent can be directly used in the on-going fixing process without washing.

The invention discloses a dyeing and finishing process for modal fabric. The process comprises the procedures of pretreatment, pre-setting, modification treatment, dyeing, soaping, fixation, after-finishing, drying, sizing, calendering and rolling. According to the invention, pretreatment is carried out by adopting ultrasonic wave, and a step of modification treatment is added; in the dyeing procedure, a base substituent SA is used, use of a large quantity of alkaline substances and inorganic salt is avoided, nature dye is adopted, and colophony powder is added as a fixing agent, so that the color fixing effect is enhanced, environmental pollution is avoided, and the requirement of green environmental protection is met; furthermore, montmorillonoid is adopted to carry out modification treatment and flame retardant treatment on the fabric, so that the flame retardancy of the fabric is high. According to the invention, a yellowing-resisting reagent is used in the procedures of pre-setting, sizing and after-finishing, so that the final fabric cannot become yellow easily.

The invention relates to an antique tusche and a preparation method thereof. The antique tusche comprises the components by weight percent: 75-85 bone glue solution, 3-25 oily fume, 0.05-0.5 powdery spice and 0.5-5 traditional Chinese medicine liquid, wherein the bone glue solution is prepared by mixing bone glue and water according to a certain mass ratio, heating to 110-120 DEG C, decocting for 20-50h, and filtering; the oily fume is light powder solid and has the granularity less than 1 micron; the powdery spice is prepared by grinding musk and borneol with the mass ration of 2: 8 and sieving by a 200-mesh sieve; the traditional Chinese medicine liquid is prepared by decocting Chinese herbal medicines; and the preparation method of the antique tusche comprises the steps of: evenly mixing the bone glue solution, the oily fume, the musk, the borneol and the traditional Chinese medicine liquid, and dispersing the mixture into paste with the fineness less than 15 microns and the viscosity of 0.01-200 Pa. S; and the antique tusche is used for writing or printing painting and calligraphy works.

The invention discloses a high-fixation high-flame retardation polyester fabric dyeing and finishing technology. The technology comprises pre-treatment, pre-setting, modification treatment, dyeing, soaping, dye fixation, after finishing, drying, setting, calendering and rolling. Supersonic wave is used for pre-treatment and a modification treatment process is used. In dyeing, a lot of alkaline substances and inorganic salts are avoided, natural dye is adopted and colophony powder is used as a dye-fixing agent so that dye fixation effects are improved, environmental pollution is avoided and environmental protection requirements are satisfied. Through modification and flame retardation treatment on the fabric by montmorillonite, fabric fire resistance is high. Through the dyeing and finishing technology, the high-fixation high-flame retardation polyester fabric is obtained.

The invention discloses a polyamide fabric modifying, dyeing and finishing process. The process comprises the steps of pretreatment, pre-setting, modification treatment, dyeing, soaping, color fixing, after treatment, drying, setting, calendering and rolling. Helicase and alpha-amylase are adopted for carrying out pretreatment, mixed liquor of nanometer titanium dioxide, gamma-(2, 3-epoxypropoxy) trimethoxypropylsilane and caprolactam is adopted for modifying performance of polyamide fabric fundamentally, and the dye-uptake rate of the fabric is increased; in the dyeing working procedure, a large number of alkaline substances and inorganic salts are not used, a leveling agent and a dispersing agent are added, and dyeing levelness is improved; meanwhile, as rosin powder is added to serve as a color fixing agent, the color fixing effect is enhanced, environmental pollution is avoided, and the requirement for environmental protection is met; moreover, montmorillonite is adopted for carrying out modifying and flame retarding on the fabric, and therefore the fire retarding property of the fabric is high; anti-yellowing reagents are used in the presetting and setting steps, and therefore the final fabric is not prone to yellowing.

The invention discloses a preparation method of a modified cationic waterborne polyurethane color fixing agent, and belongs to the technical field of textile color fixing agents. The preparation method comprises the following steps: (1) carrying out a quaternization reaction, (2) carrying out a reaction on a polyurethane prepolymer, and (3) carrying out an end-capping and emulsification reaction to obtain the modified cationic waterborne polyurethane color fixing agent with semitransparent appearance, blue light exhibition and solid content of 30-40%. The preparation process disclosed by invention is simple. Firstly, a part of diisocyanate groups obtained after the reaction of the polyurethane prepolymer is inactivated by using an end-cappingreagent, and then the waterborne polyurethane color fixing agent is generated by self emulsifying. The color fixing agent is applied to a color fixation post-treatment process of dyed cotton fabrics, so that the color fixation effect is good, rubbing fastness and soaping fastness are obviously improved, the color change of the dyed fabric is small, and the hand feeling is soft. Meanwhile, the prepared color fixing agent does not contain formaldehyde, so that relatively high economic benefit and environmental benefit are achieved.

The invention discloses an efficient dyeing and finishing process for a chemical fiber fabric, which comprises the procedures of modification treatment, one-bath scouring dyeing, soaping, fixation, after finishing, drying, sizing, calendering and rolling. According to the invention, pretreatment is carried out by adopting ultrasonic wave; before the procedure of dyeing, the fabric is subjected to low-temperature plasma treatment, and then 2, 3-glycidyl trimethyl ammonium chloride is adopted for carrying out modification treatment on the fiber fabric, so that the degree of dyeing of the fabric is increased, and the difficulty of subsequent dyeing step is lowered; since one-bath scouring dyeing is adopted, the efficiency is increased, and the cost is lowered; in the dyeing procedure, use of a large quantity of alkaline substances and inorganic salt is avoided, nature dye is adopted, and colophony powder is added as a fixing agent, so that the color fixing effect is enhanced, environmental pollution is avoided, and the requirement of green environmental protection is met; furthermore, montmorillonoid is adopted to carry out flame retardant treatment on the fabric, so that the flame retardancy of the fabric is high. According to the invention, a yellowing-resisting reagent is used in the procedure of sizing, so that the final fabric cannot become yellow easily.

The invention discloses a single yarn dyeing process and system. The system comprises an unwinding mechanism, a guide roller mechanism, a wetting mechanism, a spray dyeing mechanism, a drying mechanism and a winding and rewinding mechanism. Dyeing steps comprise procedures of yarn rewinding and unwinding, yarn humidity adjusting, yarn dyeing, drying, yarn rewinding and forming, and the like, wherein in a dyeing process, a temperature control high-frequency atomization dyeing process is adopted, dyeing effects of more efficiency and more stable chromaticity can be achieved by adjusting atomization chamber temperature and atomization chamber humidity during dyeing, and a dyeing effect of more evenness can be achieved by adjusting yarn humidity before dyeing. By adopting the dyeing process and system, the dyeing course is simple, dyeing permeation is even, the course is continuous, the operation is simple, the yield is high, water consumption and sewage drainage are less, energy consumption is low, loss is less, and economic benefit can be greatly improved.

The invention relates to the field of production auxiliaries of wool products, in particular to a wool and cashmere printing and dyeing auxiliary. The wool and cashmere printing and dyeing auxiliary comprises sodium carboxy methyl cellulose, sodium diethylhexyl sulfosuccinate, citric acid, ethylene oxide, amino silicon oil, di-rhamnolipid, peroxidase and deionized water. The wool and cashmere printing and dyeing auxiliary comprises, by mass, 10-15 parts of sodium carboxy methyl cellulose, 3-8 parts of sodium diethylhexyl sulfosuccinate, 12-16 parts of citric acid, 8-14 parts of ethylene oxide, 5-10 parts of amino silicon oil, 3-6 pars of di-rhamnolipid, 1-3 parts of peroxidase and 40-60 parts of deionized water. According to the wool and cashmere printing and dyeing auxiliary, due to the combination ratio of the carboxy methyl cellulose, the citric acid and the amino silicon oil, dyeing and fixation of the dye on a wool and cashmere product are effectively improved, color fastness is improved, the color increasing and protecting performance can be improved, and the dyeing effect is ensured.

The invention provides mulberry leaf green-tea and a preparation technology thereof, and specifically relates to the technical field of tea preparation. The preparation technology of the mulberry leafgreen-tea comprises the following steps: a. Picking fresh mulberry leaves; b. withering the picked mulberry leaves; c. cutting the withered mulberry leaves into strips; d. carrying out drum fixation;e. carrying out spreading-cooling; f. carrying out secondary microwave fixation; g. carrying out cooling and water-regaining; h. carrying out rolling; and i. carrying out stir-frying and shaping. Thestep of withering moisture in the mulberry leaves, the fixation temperature and the rolling methods in the preparation technology are optimized so that the prepared mulberry leaf green-tea has uniquecharacteristic varietal aroma of mulberry leaves, and is tight and compact in granules, dark green and oily in color and lubricant in color and luster, yellowish green, translucent and bright in soupcolor, sweet and pure in taste, and mellow in after taste; moreover, the preparation technology of the mulberry leaf green-tea is stable and controllable in preparation processes, high in productionefficiency, and suitable for large-scale production.

The invention belongs to a continuous paint dyeing padding machine with a padding system. According to the successive sequence, the dyeing padding machine is provided with a fabric feeding pre-processing device, a padding system, a drying system and a fabric outlet processing device; the padding system comprises a padding device and a proportional liquid supply device; the proportional liquid supply device comprises a measuring pump motor, two liquid supply devices, a mixer and a liquid inlet pipe; and a liquid storage box of one liquid supply device contains cation modifier and the liquid storage box of the other liquid supply device contains paint color paste. When in use, the cation modifier and the paint color paste pass by a corresponding measuring pump by a certain proportion, are subsequently mixed in the mixer to form composite dye solution, and then flow in a dipping trough continuously along the pipeline; the composite dye solution used for dipping the textile is the just mixed composite dye solution; before the modifier generates cohesion with the paint color paste, the modifier is attached to the solid fiber and generates the modification function; furthermore, the paint color paste is also attached to the solid fiber and better dyeing effect can be obtained after the post-processing.