85results about How to "Reduce dyeing process" patented technology

The invention provides an efficient and continuous dyeing process method for textile fabric through wet-state steaming, which belongs to the fabric dyeing method. The process method comprises the following steps in sequence: fabric soaking in dyeing solution, bake-steaming for color fixation, water washing and drying and feeding. During the drying and feeding procedure, the humidity of mixed gas in the reaction steam box is 25-35 percent, the temperature of the mixed gas is 120-130 DEG C, the air volume of the mixed gas is 4m3/s, and the processing time is 2-3 minutes; the saturated vapor pressure is 0.15-0.2MPa; and during the water washing procedure, the content of the water softener B in lotion is 2-3g/L, and the rest is water. The dyeing process method shortens the process flow, thereby not only improving the production efficiency, but also saving the energy. In addition, compared with the traditional dyeing process, the dyeing process method has the advantages of high color fixing speed, high color fixing rate, bright color, no dye transfer, low alkali consumption, good reproducibility, good levelness, good penetration and the like. Therefore, the invention can be used for obtaining good washing-resistant and friction-resistant fastness.

The invention discloses a polyester-cotton microcapsule disperse reactive dye one-bath dyeing technology. The technology comprises the steps of: S1, polyester dyeing: dipping a to-be-dyed polyester-cotton fabric in a dye solution containing microcapsule disperse dye, conducting heat preservation at 65-75DEG C, then performing heat preservation at 110-130DEG C, and carrying out cooling to 30-40DEG C, using chitosan to serve as the carrier of the disperse dye, and then conducting crosslinking curing; S2. cotton dyeing: adding a quaternary ammonium salt cationic etherifying agent, carrying out stirring reaction, then adding a reactive dye, performing heat preservation at 55-65DEG C, adding an organic solvent, conducting heat preservation at 70-90DEG C, then adding organic amine and sodium carbonate, and performing heat preservation at 60-100DEG C; and S3, aftertreatment: performing cooling to room temperature, and then carrying out primary washing, soaping and after-washing. The polyester-cotton microcapsule disperse reactive dye one-bath dyeing technology provided by the invention has the advantages of simple process, little pollution, wide dye applicability, uniform coloring, high color fixation rate and good level-dyeing properties.

The invention relates to a preparation method and application of a dyeing promoter. The invention aims to provide a method for preparing a promoter, which can carry out cation modification on natural fibers like cotton and silk, and provides a technology for modification of natural fibers by employing the above mentioned dyeing promoter. A technical scheme is as below: a preparation method of a polypichlorohydrin amide dyeing promoter is carried out according to the following steps: 1) synthesis of polypichlorohydrin; and 2) synthesis of the polypichlorohydrin amide dyeing promoter. The method for modification of natural fibers by employing the polypichlorohydrin amide dyeing promoter is carried out according to the following steps: preparing a modification liquid according to the scheme, and placing the modification liquid in a constant temperature water-bath pan for oscillation; and adding a natural cellulose fabric into the modification liquid, and taking out and washing the fabric; or preparing a modification liquid according to the scheme, and placing the modification liquid in a constant temperature water-bath pan for oscillation; and adding a natural silk fabric into the modification liquid, and taking out and washing the fabric.

The invention provides a production process of wool terylene blended smooth double-faced woolen goods. The production process of the smooth double-faced woolen goods includes the steps: sufficiently mixing wool fibers and terylene fibers; spinning the mixed wool fibers and terylene fibers into yarns of 13/1 metric number by an open-end spinning frame; weaving the spun yarns on a rapier loom; performing edge sewing, fulling, scouring, dewatering, drying, decating, teasel raising, drying, anti-shrinking finishing, dyeing, softening finishing, scalding, cutting, decating and the like on a woven gray fabric to prepare a finished product. The total number of warp yarns is 6100-6300, the acting reed width is 195-200cm, porter/permeating number is 35/9, weft density is 285-290 yarns/10cm, and theweight of a fabric billet is 930-950g/m<2>. The fabric is fine, smooth and soft in hand feeling, compact in texture, bright in color and high in color fastness and does not easily felt after being washed with water.

The invention relates to a dye composition which is one or more than two mixtures selected from a general formula (I)-(III), or is one or more than two mixtures selected from a general formula (IV)-(V), or is one or more than two mixtures selected from a general formula (VI)-(IX), or is one mixture selected from a general formula (I)-(III) and one mixture selected from a general formula (IV)-(V), or is one mixture selected from a general formula (I)-(III) and one mixture selected from a general formula (VI)-(IX). According to the method, the dye color spectrum for dyeing is enlarged under the condition of dispersed dyes alkaline, dyeing manufacture of polyester fiber fabric of short process is realized, two processes of desizing and dyeing for original polyester fiber fabric are combined into one process, so that a large amount of water resource is saved, a plurality of washing processes are reduced, the energy consumption is lowered, and the limitation of dispersed dyes alkaline application is completely broken through.

The invention discloses a recycling dyeing process of polyester fabric printing and dyeing wastewater, the printing and dyeing wastewater is directly completely used as dyeing water for a polyester fabric, wastewater treatment agent WFS088, surfactant WFS099, dyeing auxiliaries and dyes are added during dyeing, the polyester fabric is put into a dyeing machine, the dyeing machine runs for 15-20min at process temperature of 110 to 130 DEG C under thermal insulation condition, the polyester fabric is cooled to 70 to 80 DEG C by a heat exchanger in the speed of 1 to 2 DEG C / min, after color comparison, the polyester fabric is directly discharged without cleaning, and dehydrated for completion of dyeing of the polyester fabric and recycling of the printing and dyeing wastewater. According to the recycling dyeing process of the polyester fabric printing and dyeing wastewater, the printing and dyeing wastewater is revolutionarily directly recycled in the dyeing process repeatedly, initial dyeing temperature is high, cloth washing and postprocessing are not needed, the dyeing process is greatly shortened, energy is greatly saved, production capacity is improved; dyeing water consumption and wastewater emission can be greatly reduced, sewage treatment cost is reduced, and dyeing production efficiency and benefit can be reduced.

The invention discloses a method for one-bath dyeing on a nylon/cationic dyeable polyester/polyester fabric, wherein the method comprises the following steps: 1, dipping a fabric in a pretreatment liquid, treating for 20 min-60 min, and then pickling; 2, dipping the fabric obtained after pretreatment in a dyeing liquid containing a polyester whitening agent, a cationic dye and an acidic dye, dyeing for 30 min-60 min at the temperature of 110 DEG C-130 DEG C, then cooling to 60 DEG C or less, and discharging the liquid; and 3, firstly, washing the dyed fabric with water at room temperature, discharging the liquid, and then carrying out acidic color fixation. According to the method, by choosing the suitable polyester whitening agent, cationic dye and acidic dye, one-bath dyeing on the nylon/cationic dyeable polyester/polyester fabric can be achieved, the dyed fabric is free of defects such as dyeing defects, color spots and the like, the washing color fastness and the friction color fastness are both relatively high, the quality is relatively good, moreover, the dyeing process flow is shortened, the damage to fibers is reduced, and thus the energy consumption is reduced.

The invention relates to a brocade cotton fabric short-process dyeing method, and belongs to the technical field of printing and dyeing in the textile manufacturing industry. The method includes subjecting brocade cotton fabric to pretreatment to remove oil stain and impurities and to improve handfeel and gloss; adding an active dye into an air flow cylinder to prepare into a dyeing solution; dyeing by adoption of a one-bath two-step method that includes acid dyeing and alkaline fixation; and after the dyeing step is finished, washing, soaping and airing to obtain a finished product. The method has advantages of uniform dyeing, good homochromatism, and the like when being used for air flow cylinder dyeing of the brocade cotton fabric such as brocade cotton intertexture.

The invention discloses a production method of a heat-accumulation and heating core-spun double-layered-structure yarn warm-keeping woven fabric. The production method comprises the following steps: selecting fiber raw materials; selecting specifications of yarns; designing the heat-accumulation and heating core-spun double-layered-structure yarn warm-keeping woven fabric; carrying out a production process flow of the woven fabric. The heat-accumulation and heating core-spun double-layered-structure yarn warm-keeping woven fabric disclosed by the invention has a triple warm-keeping function of heat-accumulation and heating fibers, inner hollows parts of double-layered-structure yarns, double-faced fabrics and the like; if chemical fiber filaments used as core yarns have hollow parts, the warm-keeping woven fabric has a quadruple warm-keeping function of the heat-accumulation and heating fibers, the inner hollows parts of the double-layered-structure yarns, the hollow chemical fiber filaments, the double-faced fabrics and the like, so that the warm-keeping effect of the woven fabric is extremely improved under the condition that the thickness is not increased.

The directly blending rose dye in the shown chemical structure is prepared through the technological process including the first condensation reaction, aniline diazoniation, coupling reaction, the second condensation reaction and the third condensation reaction. The directly blending rose dye contains no carcinogenic chemical, and may be used in dyeing cellulose, polyester/cotton blended fiber, and polyester/viscose blended fiber. It has the advantages of reduced dyeing steps, shortened dyeing time, reduced dyeing waste water exhaust, lowered dyeing power consumption, lowered dyeing cost, increased dyeing yield.

The invention discloses a one-bath agent for a reactive dye and a disperse dye used in dyeing. The one-bath agent comprises the following components in percentage by mass: 50%-60% of pectinase, 35%-45% of cellulase, 3%-8% of surface active agent, 2%-3% of reactive dye protective agent, 1%-2% of alkaline fixing agent and 1%-2% of preservative. The one-bath agent for the reactive dye and the disperse dye used in dyeing has the advantages that the disperse dye and the reactive dye can be fully fused, fusing time is shortened, steps and time consumption of dyeing are reduced, the yield is increased, the production cost is reduced, and an environmental-friendly disperse and reactive dye one-bath agent and dyeing technique are obtained.

The invention discloses a method for producing recycled cotton fabrics from leftover materials. The method includes the following steps: S1, classifying and collecting the leftover materials; S2, slitting the leftover materials into cloth strips, and subjecting the cloth strips to opening and dedusting to obtain cotton bulk fibers; S3, sequentially subjecting the cotton bulk fibers to carding, drawing and spinning to obtain recycled cotton yarns; S4, weaving the recycled cotton yarns into the recycled cotton fabrics. The method has the advantages that the recycled cotton fabrics are obtained by classifying, collecting, slitting, opening, impurity removing, carding, spinning and weaving raw materials, namely the leftover materials produced after garment manufacturing, so that industrial recycling of the leftover materials is realized, and the consumption of new cotton materials in fabric production is reduced; the recycled cotton fabrics prepared from the leftover materials through cotton assorting are correspondingly heather grey, and colored fiber flocks form a unique color point style on the cloth surface; a fabric dyeing process is omitted from production engineering of the recycled cotton fabrics, the market price of the products is 120% of that of ordinary grey products, and accordingly, the economic benefit is good.

The invention provides moisture-absorbing and heating yarn and a preparation and dyeing method thereof. The moisture-absorbing and heating yarn is characterized by consisting of modified coffee-carbon polyester staple fiber with the mass fraction of 20-40% and viscose staple fiber with the mass fraction of 60-80%, wherein the total amount of the modified coffee-carbon polyester staple fiber and the viscose short fiber is 100wt%. The moisture-absorbing and heating yarn and the preparation and dyeing method thereof provided by the invention have the advantages that because of the introduction of hydrophilic groups, the fiber moisture absorption rate can be increased; simultaneously, when dyeing with viscose, one-bath piece dyeing with active dye can be realized, so that the dyeing procedure is greatly reduced, the dyeing cost is reduced and the dyeing uniformity is improved. The moisture-absorbing and heating yarn can be widely applied to the field of clothing and is especially used for preparing textiles such as household underwear.

The invention relates to the technical field of textile dyeing and finishing, in particular to a cotton/chinlon/lyocell fabric reactive dye wet short steaming clean pad dyeing process which comprises the following steps: (1) preparing dye liquor by adopting M-type reactive dye, and adjusting the pH value of the dye liquor to be acidic; (2) padding and padding in dye liquor: performing two-time padding and two-time padding, wherein the liquor detention rate is 71-93%; (3) steaming; (4) padding in alkaline color fixing liquid: dipping twice and rolling twice, wherein the liquor detention rate is 20-28%; (5) steaming; (6) washing with cold water; (7) washing with hot water; (8) soaping; (9) washing with hot water; (10) washing with cold water; the dyeing process of the cotton/chinlon/lyocell three-component fabric can be shortened, migration and time consumption are reduced, cost and chemical consumption are reduced, energy consumption is reduced, pollution is reduced, energy consumption and carbon emission are reduced, and the fabric is good in dye permeability and leveling property and high in color yield and color fastness.

The invention relates to the field of dyeing and finishing in the textile industry, and discloses a napping, dyeing and finishing process for orange segment-shaped polyester-nylon composite fiber fabrics and a splitting agent thereof. The napping, dyeing and finishing process comprises the following steps: (1) open-width scouring; (2) preshrinking-presplitting; (3) splitting by the splitting agent; (4) presetting; (5) dyeing; (6) setting. The invention has the following advantages and effects: the design of the splitting agent formula and a two-step splitting process thereof facilitates the sufficient splitting of the fibers and better balance the contradiction between fluffiness and damage caused by strong force; compared with conventional polyester sea-island filament napped fabrics, theinvention can omit the step of napping, the process flow is simple, and soaping fastness and rubbing fastness are remarkably increased.

The invention discloses a novel polyester-cotton disperse dye and reactive dye two-bath dyeing process. The method comprises the following steps: S1, dyeing and washing: immersing the polyester cottonfabric into a disperse dye microcapsule dyeing solution, heating the material to 120-130 DEG C, performing insulation for 45 to 55 minutes, cooling the material to 70 to 80 DEG C, performing insulation for 5 to 15 minutes, washing the material with water, and drying the material; and S2, cotton dyeing: immersing the polyester cotton fabric into a finishing solution containing 2,3-epoxypropyltrimethyl ammonium chloride, heating the material to 70-80 DEG C, performing insulation for 50-60 min, and then immersing the material in a reactive dye solution, heating the material to 70-80 DEG C, performing insulation for 10-20min, then adding 5-20g / L of soda ash, performing insulation for 25-35min, and after cooling to room temperature, performing steps of washing, soaping and drying. The noveltwo-bath dyeing process not only has high production efficiency, short process flow, but also uniform coloring and high color fastness.

The invention discloses a polyester textile dyeing method and belongs to the technical field of textile processing. The polyester textile dyeing method comprises the following steps: dissolving polyvinyl alcohol into water to prepare pulp, putting dye and a surfactant into the pulp, performing padding treatment on the pretreated polyester textile, baking, enabling dye modules to enter fiber, rapidly dyeing the polyester textile, and solidifying the polyvinyl alcohol on the surface of a polyester yarn to form a film. In the polyester textile dyeing method provided by the invention, the polyvinyl alcohol is non-toxic and degradable, and the dyeing process is green and pollution-free; meanwhile, the polyvinyl alcohol can be solidified on the polyester textile to form the film, rapid dyeing and sizing are realized, the processing process is simple and the time-consuming cycle is short; meanwhile, the rapid dyeing process can be completed on the common sizing machine, consumption of water resources and consumption caused in the high-temperature and high-pressure process are reduced and energy can be effectively saved.

The invention relates to an active dye dyeing process through fabric modification. The process comprises the following steps: (1) flax modification, namely soaking a flax fabric in a modifying liquid with the bath ratio of 1:10; heating to the modifying temperature to modify the flax fabric for a certain time; after modification, taking out the fabric; firstly, washing the fabric by hot water twice and washing the fabric by cold water twice; then, treating the fabric for 2 minutes by a glacial acetic acid liquor; finally, fully washing the fabric by water till the fabric is neutral, and drying; (2) dyeing, namely after preparing a dyeing liquid, heating to 40 DEG C; wiping the modified flax fabric and casting the fabric into a dye bath to be dyed; heating the dye bath gradually to 90 DEG C, dyeing for 100 minutes with the bath ratio of 1:50; after dyeing, taking out the fabric; washing the fabric by hot water twice and washing the fabric by cold water twice; soaping; washing the fabric by a great amount of water and drying the fabric. The process provided by the invention has the beneficial effects that the dye-uptake of the modified flax fabric is improved, and the color fastness is good, so that the dyeing process flow can be shortened and the production efficiency is improved.

The invention discloses a recycling dyeing process of nylon fabric printing and dyeing wastewater, the printing and dyeing wastewater is directly completely used as dyeing water for a nylon fabric, wastewater treatment agent WFS088, surfactant WFS099, dyeing auxiliaries and dyes are added during dyeing, the nylon fabric is put into a dyeing machine, the dyeing machine runs for 15-25min at process temperature of 100 to 110 DEG C under thermal insulation condition, the nylon fabric is cooled to 70 to 80 DEG C by a heat exchanger in the speed of 1 to 2 DEG C / min, after color comparison, the nylon fabric is directly discharged without cleaning, and dehydrated for completion of dyeing of the nylon fabric and recycling of the printing and dyeing wastewater. According to the recycling dyeing process of the nylon fabric printing and dyeing wastewater, the printing and dyeing wastewater is revolutionarily directly recycled in the dyeing process repeatedly, initial dyeing temperature is high, cloth washing and postprocessing are not needed, the dyeing process is greatly shortened, energy is greatly saved, production capacity is improved; dyeing water consumption and wastewater emission can be greatly reduced, sewage treatment cost is reduced, and dyeing production efficiency and benefit can be reduced.