69results about How to "Few yarn defects" patented technology

The invention discloses cotton fiber, aloe fiber and viscose fiber blended yarn and a yarn spinning process thereof. The blended yarn comprises the components by fiber-content blended ratio: 50 percent of cotton fiber, 30 percent of aloe fiber and 20 percent of viscose fiber, and the fibers are spun into the yarn through a blending process. The aloe fiber and the viscose fiber are subjected to coating mixing, and card slivers formed through working procedures such as blowing and cotton carding and cotton-fiber fine combing slivers are subjected to sliver mixing to form the yarn. A compact Siro spinning technique and the reasonable raw material collocation are adopted, so that the problems that the fiber of the aloe fiber is short, the viscose fiber is easy to deform, the elastic recovery properties are poor, the abrasive resistance is poorer, the fiber is not resistant to acid and the like are solved, and the advantages of the aloe fiber, the viscose fiber and the cotton fiber are exerted. A mixing mode of one pre-drawing and three mixing-drawing is adopted, the accurate blending ratio is favored, and the components are uniform. The produced single yarn evenness is uniform, the single yarn strength is high, the neps are less, and the yarn defects are less.

A kuralon fiber finely woven fabric is characterized by comprising the following components by weight percent: 70-80% of wool or wool and other fibers and 20-30% of kuralon fiber; and the preparation method comprises the following steps: 1) selecting raw materials; 2) recombing; 3) spinning; 4) weaving; and 5) dyeing and finishing. The kuralon fiber finely woven fabric produced by the method of the invention has bulky and soft hand feeling and the hollowness is up to 20-30%. The selection of kuralon is reasonable, the mixing method ensures that the kuralon fiber finely woven fabric can be smoothly spun, the spinnability is good, the fiber is easy to draw, the evenness is good, the fault is less, the weaving efficiency is high, and the characteristics that the fabric is hollow and the hand feeling is bulky and soft, of the kuralon fiber finely woven fabric can be better embodied after finishing.

The invention discloses a winding forming control method capable of detecting and dynamically adjusting tension in real time. The winding forming control method capable of detecting and dynamically adjusting the tension in real time comprises the following steps: 1, a winding starting stage: an overfeeding wheel begins to rotate, and a yarn core begins to rotate after delay; the overfeeding wheel does uniformly accelerated motion; the target rotating speed of the yarn core is calculated according to the rotating speed of the overfeeding wheel; and the rotating speed of the yarn core is driven to dynamically follow the target rotating speed; 2, a stable operation stage: the target tension of a yarn roll is dynamically adjusted along with winding of a yarn roll; and under the state that the linear speed of the yarn roll is kept constant, the target rotating speed of the overfeeding wheel is dynamically calculated and updated according to the change of the target tension F, and the rotating speed of the overfeeding wheel is driven to dynamically follow the target rotating speed; and 3, a machine stopping stage: the yarn core does uniformly retarded motion, and after delay, the overfeeding wheel starts to retard; the target rotating speed of the overfeeding wheel is calculated and updated according to the rotating speed change of the yarn core; and the rotating speed of the overfeeding wheel is driven to dynamically follow the target rotating speed. According to the winding forming control method capable of detecting and dynamically adjusting the tension in real time provided by the invention, the tension of yarns is accurately adjusted, so that cheeses are uniformly wound, no yarn broken ends exist, and the number of yarn faults is small.

A dense spinning unit for ring spinning frame is composed of drawing roller pair, roller seats, cradle pressing unit, air sucking tube with inlet and air oultet, condensing sleeve with condensing slot and sleeving on air sucking tube, stretching unit in the slide slot of condensing sleeve, air-permeable delivering ring sleeving on condensing slot and stretching unit, and drive pressing unit. Its advantages are high spinning power and high yarn quality.

This invention discloses a terylene core-spun thread twisted by two or many terylene core-spun yarns composed of terylene long silk wrapped by terylene short fibers, the process method is as follow: 1) the processed long silks and the short fibers after middle and rear roller drawing are fed into a front roller. 2) the short fibers wrap the long silks in the front roller to become the terylene core-spun yarn to be output from the roller clamp, 3) two or many terylene core-sun yarns are twisted to terylene core-spun threads. The long silk tension is stabilized and controlled by godet hook and a tension disk then to be fed into the front roller after positioning by the carrier rod and the locationing guide wheel.

The invention relates to a production method for spun-silk wool blended worsted fabrics and relates to the technical field of textile manufacture. The method comprises top dyeing and recombing, spinning, weaving and after treatment to manufacture the fabrics successively. The mass percentage of wool in spinning raw materials accounts for 50% to 60%, the mass percent of spun silks ranges from 40% to 50%, the spun silk raw materials are machined and are broken through a breaking machine to be manufactured into spun silk velvet strips with the average length between 40mm and 50mm, the length discretion smaller than 50%, and the gram weight ranging from 5g/m to 8g/m. The spun silk velvet strips with the fiber length smaller than 30mm account for less than 30% of the total spun silk velvet number. According to the production method, the spun silk content is high, the spinnability is good, the yarn levelness quality is guaranteed effectively, and yarn faults are few.

The invention discloses a production technology for siro compact spinning combed cotton and cellulosic fiber blended yarn. The technology includes the following steps that 1, fiber ribbons are spun; 2, spinning of the blended yarn includes the processes of drawing, roving, spinning and spooling. Cellulosic fibers in chemical fibers are used for replacing part of cotton fibers, through a siro compact spinning technology, combed cotton and cellulosic fibers are blended to prepare yarn, and combed cotton and cellulosic fibers are blended to prepare yarn with part of differentiated chemical fibers, the advantages of multi-component fibers are exerted, performance complementation of all the fibers is realized, respective defects are overcome, the quality of the yarn is remarkably improved, andthe gloss is improved; after the yarn is processed into a fabric, serviceability and home textile performance are more comprehensive, and the fabric quite accords with the pursue of people for clothing, costumes and home use.

The invention relates to a compactness strand spinning device that includes a drafting assembly, two fiber sticks, a gathering area, a conveyer belt, air intake sew and twister. Two paralleled air intake sews are not paralleled to the moving direction of conveyer belt. The advantages of the invention are low yarn faults, better bar, and stronger brute force. It could also be used to produce compactness strand spinning composite yarn and worsted spinning strand and chemical fiber. The application value of spinning fiber would be improved.

The invention discloses a doffing roller device for a ring spinner, in particular a doffing roller device for a cylindrical spring-pressurized rocking frame of the ring spinner. The doffing roller device consists of an original rocking frame, a doffing roller, a roller mandrel, a doffing belt roller, a doffing belt roller mandrel, a device seat, a pressurization spring, a pressurization bolt, a bearing, a force metering lever and a dynamometer. When used, a front belt roller of the original rocking frame drives the doffing roller to rotate; and the doffing roller drives the doffing belt roller to rotate. A drawing fiber strand passes through an original front roller pair, is transferred to between the doffing roller and the doffing belt roller and is twisted to form yarn. The doffing roller device has the advantages that yarn strips are even; the length of a floating region and a weak twisting region can be adjusted respectively and independently; and the pressurizing of the doffing belt roller can be directly measured and is convenient to implement.

The invention relates to a blended yarn of Shu elastic silk fibers and cotton fibers and a spinning process thereof. The blended yarn has the advantages of the Shu elastic silk fibers and cotton, is transcendental in size stability, natural, soft, high in air permeability and abrasive resistance, capable of being widely applied in the fields of cowboy costume, formal clothes, sport suit, knitted underwear and home textile, and broad in market prospect. According to the preparation process, the difficulties that the Shu elastic silk which serves as raw material fibers is high in elasticity and uneasy to reel separately and has too much crimps are overcome, the Shu elastic silk fibers and the cotton fibers are blended according to a blending proportion, and a cotton carding process, a roving process and a spun yarn process in the later period are completed. According to the process, the spun yarn process is adjusted, and the problem is solved that since the rebound resilience of the Shu elastic silk is high, coiling strips serving as raw materials are difficult to shape; a big-ration high-drafting process is achieved, the supply in the early period and the supply in the later period can be ensured, and the prepared blended yarns are high in single yarn intensity, small in variable coefficient and high in stability of fiber strength, show excellent rebound resilience, and meet demands of downstream manufacturing.

The invention relates to a yarn blended with silver fiber and cotton fiber and preparation technology, and the yarn is blended with silver fiber and combed cotton fiber through blending, wherein, the content of the silver fiber is 1-50%, and the balance is cotton fiber. The preparation technology comprises the steps of flower removing, cotton combing, preparation, fine combing, blending of silver fiber and combed cotton strip of combed cotton fiber, mixing, roving, spinning and automatic winding. The advantages are that the characteristics of both the silver fiber and the cotton fiber are provided; the yarn has high intensity, good wear resistance, moisture absorption, ventilation, strong antibacterial performance, and radiation hardening. The technology has the advantages that the blending ratio is accurate; the components are uniform; the blended yarn manufactured thereby has a strong force of a single thread, little hairiness, uniform strips, little cotton knobs and little yarn defects.

The invention discloses an antibacterial healthcare multi-component fiber integrated blended yarn and a preparation method thereof. The yarn comprises an aloe viscose fiber, a Viloft fiber and a cashmere fiber, the weight content of the aloe viscose fiber accounts for 30-65%, the weight content of the Viloft fiber accounts for 25-50%, and the weight content of the cashmere fiber accounts for 10-25%. Performance indexes of the blended yarn include single yarn breaking strength 12.0-19.9cN/tex, a single yarn breaking strength variable coefficient Cv value 7.8-17.0% and a yarn evenness variable coefficient Cv value 12.9-21.0%. The blended yarn has the advantage that a fabric made of the blended yarn has healthcare functions such as bacteria resistance, inflammation diminishing, skin care, body building, beauty and skin moistening, is fine in skin friendliness, has fine comfort, high strength, fine moisture absorption breathability, fine dyeing property, soft hand feeling and fine fullness, moisture guiding breathability, warmth retention property and ecological environmental protection property, is noble, elegant and unique in appearance, bright in color, rich in gloss and wide in application, and can be used for manufacturing various knitted or woven healthcare textiles such as various garments, bedding articles, underwear, sportswear and workout clothes.

The invention provides a preparation method of polyester staple fiber used for vortex spinning, which takes PTA and IPA as diacid, and takes EG as dihydric alcohol for performing an esterification reaction, then DEG is added, and is polycondensated under catalysis of a catalyst to prepare copolyester, and then the copolyester is treated through a polyester staple fiber spinning technology to prepare the polyester staple fiber used for vortex spinning. The IPA and DEG take effect together, the crystallization property of copolyester is decreased, the fiber modulus is reduced by 7-50%, breaking tenacity is reduced by 3-10%, hand feel flexibility can be greatly enhanced, and vortex spinning requirement can be satisfied.

The invention discloses production process for flame-retardant sewing threads. The flame-retardant sewing threads are prepared by processing of 100% of 1.5D*51mm aramid 1313 fibers with yarn count being 40s/3. The production method of flame-retardant sewing threads comprises the following steps: pre-processing aramid 1313 fibers; performing opening picking on pre-processed aramid 1313 fibers, performing cotton carding operation on pre-processed aramid 1313 fibers, drawing pre-processed aramid 1313 fibers, performing roving operation in order to form aramid fiber 1313 roving; utilizing siro spinning yarns to spin aramid fiber 1313 roving into aramid 1313 single yarns; making single yarns into aramid 1313 three folded yarns through an automatic winding machine, yarn doubling and piling operation; making three folded yarns into aramid 1313 sewing threads through yarn steaming and setting process; performing humidification and moisture preservation operation on half finished products in all processes such that the moisture regain is kept within 9%-10%. With compact siro-spinning technology, the end breakage rate of spun yarns is decreased at 1 hour of every 1000 spindles. Yarn faults are reduced. Therefore, production efficiency is relatively increased. The flame-retardant sewing threads are higher in quality.

The invention provides a cotton yarn production process. Cotton serves as a raw material, and the cotton yarn production process includes the procedures of blowing, cotton carding, drawing, roving, spinning, spooling and baling. The blowing procedure includes the steps of plucking, opening, scutching, cotton blending and lapping. Before plucking, 0.002-0.003 time by weight of antistatic agents and0.006-0.007 time by weight of water are sprayed to the cotton, ultrasonic oscillation is performed, so that the cotton sufficiently absorbs moisture, cotton fiber surfaces are activated, and a reciprocation bale plucker is used for plucking. The roving procedure is characterized in that parts of slivers obtained by drawing are made into roving intermediates by a roving machine through drafting and twisting, residual slivers and the roving intermediate are fed into the roving machine together to prepare rough yarns, and the rough yarns are wound into rolls. The spinning procedure adopts Siro compact spinning. The cotton yarn production process is good in yarn quality.

The invention discloses a processing technology of multifunctional photocatalytic knitwear and belongs to the technical field of textile processing. The processing technology comprises yarn forming, weaving and dyeing and finishing; photocatalytic fibers and one of cotton fibers, bamboo fibers and tencel are subjected to processes of the first drawing, the second drawing, combing, the third drawing, the fourth drawing, roving and spinning respectively after opening and carding to obtain photocatalytic blended yarn; the photocatalytic blended yarn is woven according to different looping triangle, tucking triangle and floating thread triangle tissue modes to obtain original fabric; and the original fabric is dyed and finished sequentially according to the following steps of singeing, desizing, bleaching, primary soaping, cationic dyeing, reactive dyeing, secondary dyeing, softening treatment, heat setting, checking of finished products, rolling and storing. The multifunctional photocatalytic knitwear which is good in serviceability, antibacterial, ultraviolet-resistant, deodorant and anti-static can be produced through the processing technology which can be applied to processing and post-processing processes of textiles.

The invention discloses a blended yarn of tussah silk and cotton fiber and a spinning method of the yarn and belongs to the field of spinning. The blended yarn is formed by blending the tussah silk with the cotton fiber, wherein the content of the tussah silk in the blended yarn is not higher than 60 wt%, and the balance is the cotton fiber; the fineness of the blended yarn is 20-120 S; single-yarn breaking strength of the blended yarn is 430-120 CN, and the size of neps is 5/50-150/480. The high-quality blended yarn fills up the market blank, is uniformed in component and evenness, high in single-yarn strength and low in hairiness and has few neps and yarn defects. According to the spinning method, combed cotton strips and tussah silk strips are directly subjected to mixed blending, the spinning flow is short, damage caused to the tussah silk is small, the utilization rate is high, the spinning cost is low, and the controlled blending ratio is accurate.

The invention relates to a production method capable of fully improving tussah silk wool blended yarns. Blended yarn materials are successively dyed, recombed, and spun by wool worsted corollary equipment to obtain yarns; the blended yarn materials include wools and tussah silks, wherein the mass percent of the wools is 50%, the length of the wools is 90 mm, the mass percent of the tussah silks is 50%, and the length of the tussah silks is 105 mm. Through selection of tussah silk materials, technology improvement, and equipment upgrading, the spinnability is improved, the production can go smoothly, and the yarn fault is reduced, so that the production efficiency and the spinning yield are improved, and the product quality is assured.