CN108950781B - Production method of health-care blended vortex yarns - Google Patents

Abstract

The invention provides a production method of health care blended vortex yarn, which adopts a machine-harvested mixed cotton which is subjected to opening picking and cotton carding and Xinjiang long stapled cotton fiber which is subjected to blowing-carding combination to be pre-blended and then combed to prepare a mixed cotton combed sliver, then polyester fiber is subjected to opening picking, cotton carding and pre-blending to prepare a polyester sliver, cotton slivers and apocynum venetum fiber are manually blended and then subjected to opening picking, cotton carding and combing to prepare apocynum venetum/cotton mixed combed sliver, then the mixed cotton sliver, the apocynum venetum/cotton mixed combed sliver and the polyester sliver are subjected to a drawing process to prepare a cotton/apocynum venetum/polyester mixed sliver, thereby realizing different blending of the cotton fiber, the polyester fiber and the apocynum venetum fiber in the previous process, effectively improving the blending effect of various fibers in the mixed sliver, effectively improving the quality of the mixed sliver, and finally adopting a vortex spinning frame in the spinning process, the large-package cone yarn is directly processed by the mixed strips, so that the high-efficiency production of the high-quality mixed vortex yarn with the health-care function is realized.

Description

Production method of health-care blended vortex yarns

Technical Field

The invention relates to the field of new spinning technologies, in particular to a production method of health-care blended vortex yarns.

Background

Vortex spinning is spinning equipment (MVS) which is developed by Murata company of Japan and is suitable for spinning pure cotton by improving air jet spinning (MJS). The spinning principle of vortex spinning is that sliver which finishes drawing is supplied to a drafting device, fiber bundles drafted by a roller drafting device are output from a front roller jaw and enter a spinning nozzle along a spiral fiber guide channel under the action of axial airflow at the inlet of the spinning nozzle. The outlet of the spiral fiber guide channel is provided with a needle-shaped twist-stopping piece, and the fiber bundle is bent at the needle part, so that the fiber bundle is introduced into the vortex chamber in a state of not adding twist. The leading end of the fiber bundle is drawn into a yarn passage in the spindle by the dragging action of the formed yarn and twisted into the newly formed yarn as a yarn core. The tail end of the fibre remains in the fibre guide channel while being gripped by the front roller nip. When the tail end of the fiber is not held by the front roller jaw any more, the tail end of the fiber is not kept in the fiber guide channel under the centrifugal action of the air vortex in the spinning nozzle, but is radially dispersed by the rotating airflow at the spindle inlet, is laid on the conical surface at the front end of the spindle under the driving of the air vortex, rotates along with the air vortex, is wound on the subsequent yarn and is output through the channel of the yarn in the spindle. The yarn formed is composed of a yarn core formed by approximately parallel untwisted fibers and fibers wrapped spirally on the periphery. Therefore, the vortex spinning adopts sliver feeding to directly obtain the cone yarn with a large package structure, so that the integration of roving, spinning and spooling processes in the traditional spinning process is realized, and the spinning efficiency is greatly improved.

In the method, the mechanically-harvested mixed cotton is pre-blended with Xinjiang long stapled cotton fibers, the mechanically-harvested mixed cotton is mixed with polyester fibers through drawing, and the mechanically-harvested mixed cotton is mixed with apocynum venetum fibers through opening and picking, so that different mixing of the cotton fibers, the polyester fibers and the apocynum venetum fibers in the previous process is realized, the mixing effect of various fibers in a mixed sliver is effectively improved, the quality of the mixed sliver is effectively improved, finally, a vortex spinning frame is adopted in the spinning process, the mixed sliver is directly processed to obtain a large-package bobbin yarn, and high-efficiency production of high-quality mixed vortex yarns with health care functions is realized.

Disclosure of Invention

The invention aims to provide a production method of health care blended vortex yarns, which adopts different mixing of cotton fibers, polyester fibers and apocynum fibers in the previous process, and adopts a vortex spinning frame in the spinning process, so that the mixed strips are directly processed to obtain large-package cone yarns, and the high-efficiency production of high-quality mixed vortex yarns with health care functions is realized.

In order to achieve the purpose, the technical scheme adopted by the invention is as follows: the utility model provides a production method of health care blending vortex yarn, health care blended yarn includes the machine and adopts cotton fiber, long fine hair cotton fiber, the polyester staple fiber, the apocynum venetum fibre, wherein the machine adopts cotton fiber, long fine hair cotton fiber, the polyester staple fiber, the apocynum venetum fibre is in blended yarn with less transfer state and less state of twisting reverse to carry out the intertwine each other, thereby make four kinds of fibre form an aggregate that has stable structure, because the transfer of fibre in blended yarn is little, thereby make the twist of yarn little, then make the yarn comparatively soft and powerful low, make the fibre exist with or comparatively unbend or partial complete bending's state in blended yarn simultaneously, thereby make the probability that the fibre head end stretches out the surface reduce by a wide margin, thereby make the surface of blended yarn comparatively smooth, specifically include following step:

the first step is as follows: preparing long-staple cotton sliver from Xinjiang long-staple cotton fiber with average grade of 3.6 and average length of 36.8mm by a first blowing-carding process, preparing machine-harvested mixed cotton sliver from machine-harvested mixed cotton of American cotton, Australian cotton and Xinjiang cotton with average length of 29.11-30.15mm, grade of 1.9-2.1 and micronaire value of 3.7-4.8 by a first blowing-carding process and a first cotton carding process, mixing the long-staple cotton sliver and the machine-harvested mixed cotton sliver by a first pre-merging process to obtain the mixed cotton sliver, wherein the first pre-drawing process adopts 5 sliver feeding, comprises 3 long-velvet cotton slivers and 2 mechanically-drawn mixed cotton slivers, the long-staple cotton sliver and the mechanically-sampled mixed cotton sliver are fed in a staggered mode, 5 sliver is the long-staple cotton sliver, the mechanically-sampled mixed cotton sliver, the long-staple cotton sliver, the mechanically-sampled mixed cotton sliver and the long-staple cotton sliver in sequence, and the mixed cotton sliver is subjected to a first doubling process and a first combing process in sequence to obtain a mixed cotton combed sliver;

the second step is that: spraying 2% of grease and 10% of water in the mass of the apocynum venetum fibers to wet the apocynum venetum fibers, then carrying out smoldering pretreatment, manually garnetting the pretreated apocynum venetum fibers and the mixed cotton combed strips prepared in the first step according to a required proportion, and then manually mixing, wherein the proportion of the apocynum venetum fibers is less than 50%, and the mixed fibers are sequentially subjected to a second opening picking process, a second cotton carding process and a second combing process to prepare the apocynum venetum/cotton mixed combed strips;

the third step: carrying out cotton bale mixing on 21k polyester fibers generated by an instrument with fineness of 1.12dtex, average length of 37.4mm, breaking strength of 5.97cN/dtex and elongation at break of 26.9% and 31k polyester fibers generated by an instrument with fineness of 1.13dtex, average length of 36.8mm, breaking strength of 5.62cN/dtex and elongation at break of 19.1% according to a ratio of 1:7, and sequentially carrying out a blowing process, a third cotton carding process and a second pre-merging process on the mixed polyester fibers to obtain polyester strips;

the fourth step: the mixed cotton combed sliver prepared in the first step, the apocynum venetum/cotton mixed combed sliver prepared in the second step and the polyester sliver prepared in the third step are subjected to drawing process to prepare cotton/apocynum venetum/polyester mixed sliver, wherein the drawing process adopts three-pass drawing and comprises 8-sliver feeding, and 8-sliver feeding sequentially comprises apocynum venetum/cotton mixed combed sliver, mixed cotton combed sliver, polyester sliver, apocynum venetum/cotton mixed combed sliver, mixed cotton combed sliver and polyester sliver, the two-pass drawing adopts mixed sliver prepared by 6-pass drawing, the last-pass drawing adopts mixed sliver prepared by 6-pass drawing, the prepared cotton/apocynum venetum/polyester mixed sliver is directly prepared into a large-package cheese through the spinning process, wherein the spinning process adopts an 870 vortex spinning frame.

The technical scheme of the invention for further perfecting the process is as follows:

in the preferred first blowing-carding set, sequentially selecting FA009 reciprocating plucker → FA125 weight separator → FA105A single axial flow opener → FA029 multi-bin cotton mixer → FA116 plucker → FA179B cotton box → FA203A type cotton carding machine, and ensuring that the cotton grabbing amount of each tooth of the cotton grabbing beater blade of the plucker is held slightly according to the principle of fine cotton grabbing in the FA009 reciprocating plucker, wherein the specific technological parameters are as follows: the horizontal running speed is 19m/min, the rotating speed of a cotton grabbing beater is 1050rpm, the distance of the blade extending out of the rib is 3mm, and the intermittent descending distance of the beater is 1 mm/time; the FA105A single axial flow cotton opener feeds the raw materials grabbed by the automatic bale plucker through the suction of the condenser, and the raw materials are mixed, highly opened, processed by impurity removal and higher in impurity removal rate, and the specific process parameters are as follows: the beater is in the form of a brad beater, the diameter of the beater is 750mm, the rotating speed of the beater is 600r/min, the installation angle of a dust rod is 18 degrees, 15 degrees, 10 degrees, the diameter of a leather wing roller is 370mm, the rotating speed of the leather wing roller is 15.9r/min, the number of the dust rods is 64, the distances between the beater and the dust rods are respectively 10mm and 15mm, the distances between the dust rods and the dust rods are respectively 8mm and 10mm, the distances between the roller and the beater are 40mm, and the distances between the beater and a cotton stripping knife are 2.5 mm; in the FA029 multi-bin cotton mixer, fed raw materials are uniformly blown into each cotton bin under the action of air flow to form air flow mixing, fiber scraps in each bin are conveyed through a 90-degree turn, re-mixing is obtained by utilizing the path difference, excessive fibers are thrown into a cotton mixing chamber to achieve careful mixing, and the specific technological parameters are as follows: the angle nail curtain speed is 480 and 800m/min, the conveying belt speed is 6.26-10.29m/min, the rotational speed of a cotton equalizing roller is 726r/min, and the rotational speed of a cotton stripping roller is 412 r/min; the cotton is further opened, decontaminated in the FA116 scutcher, and its carding roller enlarges the variable frequency speed governing scope, cooperates dust removal sword, carding plate gauge adjustment, can adapt to the processing that the difference contains miscellaneous cotton, needn't increase other opening cotton edulcoration facilities, can carry out more careful opening to the raw cotton, detach more tiny impurity as far as to make the cotton flow that accords with certain specification, requirement, supply the comb and parallel cotton to use, specific technological parameter is: the speed of an upper cotton feeding roller and a lower cotton feeding roller is controlled in a frequency conversion mode, the rotating speed of an opening roller is 981.5r/min, the rotating speed of a carding roller is controlled in a frequency conversion mode, the distance between an accelerating roller and a dust removing knife is 0.8mm, the distance between the accelerating roller and a cotton pressing rod is 3mm, the distance between the accelerating roller and the carding roller is 0.6mm, the distances between the carding roller and a first dust removing knife, a second dust removing knife and a third dust removing knife are respectively 0.7mm, 0.7mm and 0.8mm, the distances between the carding roller and an inlet and an outlet of a carding plate are respectively 2.5mm and 4.0mm, and the distances between the carding roller and an inlet and an outlet of a two carding plate are respectively 1.5; in the FA203A type carding machine, because the long staple cotton has long fiber length and good uniformity, the noil rate can be properly reduced, and simultaneously because the fiber maturity is good and the fiber strength is excellent, but the short staple and the impurity content are slightly high, the rotating speed can be properly increased to improve the yield, and the specific technological parameters are as follows: the quantitative dry and wet basis weight of the raw strips is 17.07g/5m, the quantitative wet basis weight is 18.26g/5m, the rotating speed of a poking stick is 900r/min, the rotating speed of a cylinder is 400r/min, the rotating speed of a cover plate is 181mm/min, and the rotating speed of a doffer is 80 r/min;

in the first pre-drawing process, an SB2 drawing frame is adopted, 5 slivers are fed, the sliver feeding process comprises 3 long-wool slivers and 2 machine-harvested mixed slivers, the long-wool slivers and the machine-harvested mixed slivers are fed in a staggered mode, and the specific technological parameters are as follows: pre-drawing yarn with a dry weight of 20.02g/5m, a wet weight of 21.42g/5m, a mechanical total draft of 4.306 times, an actual total draft of 4.263 times, and a draft type of 3/3 pressure bars plus guide top roller curve draft;

an E32 type sliver lap combination machine is adopted in the first lap combining procedure as a preparation procedure of combing, small fiber laps with good straightening parallelism, accurate quantification, tight winding, neat edges, uniform longitudinal and transverse directions, no lap adhesion and large package are provided for the combing machine, an even number of combing preparation procedures are adopted, most of fibers in the small fiber laps can be in a front hook state, the small lap quantification is heavier, the yield and the quality of the combing machine can be improved, and the specific technological parameters are as follows: the dry quantitative 64.65g/m, the wet quantitative 69.18g/m, the draft form is 3/3 draft pneumatic pressurization, the mechanical total draft is 1.514, the actual total draft is 1.499, the main zone draft is 1.467 times, the rear zone draft is 1.032 times, the coiling speed is 105m/min, the gauge of the roller base is respectively 8mm and 12mm, the main zone draft gauge is 42mm, and the rear zone draft gauge is 45 mm;

an E62 type combing machine is adopted in the first combing, is used for removing short fibers below 16mm in a lap, removing neps, impurities and fiber defects, improving the straightening parallelism and the neatness of fibers in cotton impurities, enabling the fibers to have necessary cohesive force, enabling the yarns to have the characteristics of good luster, high strength and the like, improving the yarn quality, and being suitable for spinning high count yarns, special industrial yarns and yarns for blended products, wherein the combing yarn dry quantity is 20.88g/5m, the wet quantity is 22.24g/5m, the drafting mode is three-upper-five-lower pressure bar drafting, the number of combined yarns is 8, the mechanical total drafting multiple is 104.004, the actual total drafting multiple is 123.81, the cylinder speed is 255 pincers times/min, the sliver outlet speed is 80m/min, the roller spacing is 7mm, the feeding length is 4.7mm, and the top combing-separating roller is 3.65 mm;

in the second opening picking process, an FA035 type mixed opener → an FA016 type opener → an FA076 type single beater scutcher are sequentially adopted, the technological principle of 'fine picking, more carding and less beating' is followed, the FA035 type mixed opener is in a parallel beater form, a moderate spacing between a stripping beater and a dust rod is adopted, the fiber is moderately beaten, the fiber is not damaged, a certain opening effect can be kept, the speed of the stripping beater is moderate, the opening effect is good, and the generation of defects such as neps and the like is reduced; the FA106 type is a porcupine type opener, adopts a card wire beater, is soft in opening and free of fiber loss, properly improves the spacing between dust bars of the stripping beater, ensures that fiber flow is smoothly conveyed to a lap former, and reduces the cotton breakage rate; a FA076 single beater scutcher adopts a comprehensive beater, the rotating speed of the beater is increased, the storage capacity of a cotton box is observed in the coiling process, the weight unevenness rate of cotton rolls is improved, the basis weight of the cotton rolls is 12.35kg, the rotating speed of a fan is 1330 r/min, and the rotating speed of a cotton roll roller is 11 r/min;

an FA201B type carding machine is adopted in the second carding process, because the length uniformity of the apocynum venetum fibers is poor, the short staple fibers are more, the cover plate flowers are more in the carding process, and the raw materials are easily wasted, the rotating speed of the cover plate is properly reduced to reduce the needle face load, and the number of the cover plate flowers is favorably reduced; the space between the licker-in and the dust removing knife is increased, so that the short apocynum venetum fiber is prevented from being removed as impurities; the distance between the cylinder and the front upper cover plate is reduced, so that the fiber layer is pressed by the front upper cover plate, the fibers are easy to be grabbed by the cylinder needle teeth, and the number of cover plate flowers is reduced; the time interval of the cylinder-cover plate outlet is mastered slightly, and the middle gears can be slightly tight, so that the carding is facilitated; when the fiber is rolled into a strip, the motor frequency is reduced, and the fiber damage is reduced; the specific process parameters are as follows: the cover plate rotating speed is 71.9r/min, the frequency is 20Hz, the cotton feeding plate-licker-in gauge is 10 inches, the licker-in-dust removing knife gauge is 13 inches, the licker-in-cylinder gauge is 7 inches, the cylinder-cover plate gauge is respectively 10 inches, 9 inches, 8 inches, 9 inches, the cylinder-front upper cover plate gauge is 33 inches, the cylinder-front lower cover plate gauge is 26 inches, and the cylinder-doffer is 5 inches;

in the polyester cotton grabbing process, an FA002A plucker is selected, and the small grabbing amount of each tooth of a plucker beater blade of the plucker is guaranteed to be mastered according to the principle of fine grabbing; the specific process parameters are as follows: the rotating speed is 720r/min, the distance of the blade extending out of the rib is 2.5mm, and the intermittent descending distance of the beater is 3 m/time;

in the blowing process, an FA111 single-roller scutcher → an FA046 vibrating hopper feeder → an FA141A single-beater lap former is sequentially selected, wherein the FA111 type scutcher is mainly used as a pre-scutcher in the opening and scutching process and comprises a card wire roller, a carding plate, a dust removing knife, a continuous suction port and an adjusting plate capable of adjusting noil, the cotton feeding speed is 20HZ, and the beater speed is 1236 r/min; the FA046 vibrating hopper cotton feeder adopts a vibrating hopper to feed cotton, cotton blocks freely fall from the vibrating hopper to ensure the uniform and consistent transverse density of a cotton layer, photoelectric control is carried out to ensure the reliability and continuity of the machine work, the transverse cotton falling can be subjected to frequency and amplitude adjustment by a vibrating plate, the yield can be adjusted by a conversion belt wheel and a cotton feeding plate, electrical cotton distribution can be adopted, and an airflow cotton distribution mode can be adopted, wherein the speed of a pin curtain is 70m/min, the spacing distance between a cotton homogenizing beater and a pin curtain is 6mm, the speed of a stripping beater is 429r/min, the speed of a cotton homogenizing roller is 272r/min, the spacing distance between the pin curtain and the stripping beater is 2mm, and the spacing distance between the pin curtain and the cotton homogenizing roller is 20 mm; the FA141A single beater scutcher is suitable for processing various cotton rolls with width of 960mm, length of 30-80 m, weight of 16-30 cotton rolls and weight of 13kg chemical fiber rolls, further opening and removing impurities on fibers and manufacturing the cotton rolls for a carding machine, and integrates beater rotation speed of 900r/min, lap roller rotation speed of 13r/min, beater speed of 1000m/min, fan rotation speed of 1300r/min, dust rod spacing distance of 5mm, beater and dust rod inlet spacing distance of 8mm, outlet spacing distance of 18mm, beater to stripping knife spacing distance of 2mm and beater to balance bent rod spacing distance of 10 mm;

the third carding adopts an A186F high-speed carding machine, the dry basis weight of the sliver is 21.48g/5m, the wet basis weight is 21.56g/5m, the actual total draft is 88.42 times, the rotating speed of the poking roller is 690r/min, the rotating speed of the cylinder is 360r/min, the cover plate is 144mm/min, and the rotating speed of the doffer is 24 r/min;

the second pre-drawing process adopts an FA306 drawing frame, the pre-drawing yarn dry quantity is 22.61g/5m, the wet quantity is 22.8g/5m, the number of drawing is 8, the drawing mode is three upper and three lower pressure bars and guide upper roller curve drawing, and the yarn drawing speed is 190 m/min;

in the drawing process, a first drawing, a second drawing and a last drawing all adopt an FA306A drawing machine, the drawing forms are three upper pressure bars, three lower pressure bars and guide upper rollers for curve drawing, the quantitative quantity of the evenness of the first drawing is 20.04g/5m, the mechanical total drawing is 8.728 times, the tension of a compression roller is 1.02N, the tension of a guide frame is 1.016N, the quantitative quantity of the evenness of the second drawing is 20.06g/5m, the mechanical total drawing is 6.116 times, the tension of the compression roller is 1.02N, the tension of the guide frame is 1.016N, the quantitative quantity of the evenness of the last drawing is 17.99g/5m, the mechanical total drawing is 6.827 times, the tension of the compression roller is 1.02N and the tension of the guide frame is 1.016N;

in the spinning process, an 870 vortex spinning frame is adopted, the roller gauge is respectively 41mm, 43mm and 43mm, the spinning speed is 370m/min, the coiling ratio is 0.98, the feeding ratio is 0.978, the width of a condenser is 2mm, the nozzle pressure is 0.53MPa, and the nozzle is 5 holes.

The invention adopts the mechanical-harvested mixed cotton and Xinjiang long stapled cotton fiber to be pre-blended, and is blended with the polyester fiber through drawing and blended with the apocynum fiber through opening and picking, thereby realizing different blending of the cotton fiber, the polyester fiber and the apocynum fiber in the previous process, effectively improving the blending effect of various fibers in the mixed sliver and effectively improving the quality of the mixed sliver, and finally adopting the vortex spinning frame in the spinning process, thereby realizing the direct processing of the mixed sliver to obtain the cheese in large packages, and further realizing the high-efficiency production of the high-quality mixed vortex yarn with the health care function.

The specific implementation mode is as follows:

to produce 40^SAnd the blending proportion of the cotton fiber, the polyester staple fiber and the apocynum venetum fiber is 10: 50:40, and the health care blending vortex yarn specifically comprises the following steps:

(1) preparing long-staple cotton slivers from Xinjiang long-staple cotton fibers with the average grade of 3.6 and the average length of 36.8mm through a first blowing-carding process, preparing machine-harvested mixed slivers from machine-harvested mixed cotton with the average length of 29.11-30.15mm, the grade of 1.9-2.1 and the micronaire value of 3.7-4.8 through a first blowing-carding process and a first carding process, and sequentially selecting a FA009 reciprocating type plucker → a FA125 weight separator → FA105A single-axial flow opener → FA 9 multi-bin mixer → FA116 blower → FA179B cotton box → FA203A type cotton carding machine in the first blowing-carding process, wherein the horizontal running speed of the FA009 reciprocating type plucker is 19m/min, the rotating speed of a plucker is 1050rpm, the distance of a blade extending out rib is 3mm, and the intermittent descending distance of the plucker is 1 mm/time; the beater form of the FA105A single axial flow cotton opener is a brad beater, the diameter of the beater is 750mm, the rotating speed of the beater is 600r/min, the installation angle of a dust rod is 18 degrees, 15 degrees, 10 degrees, the diameter of a leather wing roller is 370mm, the rotating speed of the leather wing roller is 15.9r/min, the number of the dust rods is 64, the distances between the beater and the dust rods are respectively 10mm and 15mm, the distances between the dust rods and the dust rods are respectively 8mm and 10mm, the distance between the roller and the beater is 40mm, and the distance between the beater and a cotton stripping knife is 2.5 mm; the angle nail curtain speed of the FA029 multi-bin cotton mixing machine is 480-800m/min, the conveying belt speed is 6.26-10.29m/min, the rotational speed of a cotton equalizing roller is 726r/min, and the rotational speed of a cotton stripping roller is 412 r/min; the upper and lower cotton feeding roller speeds of an FA116 scutcher are controlled by frequency conversion, the rotating speed of an opening roller is 981.5r/min, the rotating speed of a carding roller is controlled by frequency conversion, the separation distances of an accelerating roller and a dedusting cutter are 0.8mm, the separation distances of an accelerating roller and a cotton pressing rod are 3mm, the separation distances of the accelerating roller and the carding roller are 0.6mm, the separation distances of the carding roller and a first dedusting cutter, a second dedusting cutter and a third dedusting cutter are respectively 0.7mm, 0.7mm and 0.8mm, the separation distances of the carding roller and an inlet and an outlet of a carding plate are respectively 2.5mm and 4.0mm, and the separation distances of the carding roller and an inlet and an outlet of a two carding plate are respectively 1.5mm and 4.0; the FA203A carding machine sliver quantitative dry basis weight is 17.07g/5m, the wet basis weight is 18.26g/5m, the rotating speed of a poking stick is 900r/min, the rotating speed of a cylinder is 400r/min, the rotating speed of a cover plate is 181mm/min, and the rotating speed of a doffer is 80 r/min;

(2) mixing a long-staple cotton sliver and a mechanically-mined mixed cotton sliver through a first pre-mixing process to obtain a mixed cotton sliver, wherein the first pre-mixing process adopts 5 sliver feeding, comprises 3 long-staple cotton slivers and 2 mechanically-mined mixed cotton slivers, the long-staple cotton sliver and the mechanically-mined mixed cotton sliver are fed in a staggered mode, 5 sliver feeding devices are sequentially a long-staple cotton sliver, a mechanically-mined mixed cotton sliver, a long-staple cotton sliver, a mechanically-mined mixed cotton sliver and a long-staple cotton sliver, and the mixed cotton sliver is sequentially subjected to a first roll-combining process and a first combing process to obtain a mixed cotton combed sliver; in the first pre-drawing process, an SB2 type drawing frame is adopted, 5 slivers are fed, the sliver feeding comprises 3 long-staple slivers and 2 machine-collected mixed slivers, the long-staple slivers and the machine-collected mixed slivers are fed in a staggered mode, the pre-drawing quantity is 20.02g/5m, the wet quantity is 21.42g/5m, the mechanical total drafting is 4.306 times, the actual total drafting is 4.263 times, and the drafting mode is 3/3 pressure bars and guide upper roller curve drafting; an E32 type strip lap combination machine is adopted in the first lap combining procedure, wherein the dry quantitative quantity of the combed small lap is 64.65g/m, the wet quantitative quantity is 69.18g/m, the drafting form is 3/3 drafting pneumatic pressurization, the mechanical total drafting is 1.514, the actual total drafting is 1.499, the main zone drafting is 1.467 times, the rear zone drafting is 1.032 times, the lap speed is 105m/min, the gauge of a roller base is respectively 8mm and 12mm, the main zone drafting gauge is 42mm, and the rear zone drafting gauge is 45 mm; an E62 type combing machine is adopted in the first combing, wherein the dry weight of combed slivers is 20.88g/5m, the wet weight is 22.24g/5m, the drafting mode is three-upper pressure bar drafting, five-lower pressure bar drafting, the number of combined roots is 8, the mechanical total drafting multiple is 104.004 times, the actual total drafting multiple is 123.81 times, the cylinder speed is 255 pinches/min, the sliver outlet speed is 80m/min, the roller gauge is 7mm, the feeding length is 4.7mm, and the top combing-separating roller is 3.65 mm;

(3) spraying 2% of grease and 10% of water in the mass of the apocynum venetum fibers to wet the apocynum venetum fibers, then carrying out smoldering pretreatment, manually garnetting the pretreated apocynum venetum fibers and the mixed cotton combed strips prepared in the first step according to a required proportion, and then manually mixing, wherein the proportion of the apocynum venetum fibers is less than 50%, and the mixed fibers are sequentially subjected to a second opening picking process, a second cotton carding process and a second combing process to prepare the apocynum venetum/cotton mixed combed strips; in the second opening picking procedure, an FA035 type mixed opener → an FA016 type opener → an FA076 type single beater scutcher is adopted in sequence; the second carding adopts an FA201B type carding machine, wherein the cover plate rotating speed is 71.9r/min, the frequency is 20Hz, the feed plate-licker-in gauge is 10 inches, the licker-in-dust removal knife gauge is 13 inches, the licker-in-cylinder gauge is 7 inches, and the cylinder-cover plate gauge is respectively 10 inches, 9 inches, 8 inches, 9 inches, the cylinder-front upper cover plate gauge is 33 inches, the cylinder-front lower cover plate gauge is 26 inches, and the cylinder-doffer is 5 inches;

(4) carrying out cotton bale mixing on 21k polyester fibers generated by an instrument with fineness of 1.12dtex, average length of 37.4mm, breaking strength of 5.97cN/dtex and elongation at break of 26.9% and 31k polyester fibers generated by an instrument with fineness of 1.13dtex, average length of 36.8mm, breaking strength of 5.62cN/dtex and elongation at break of 19.1% according to a ratio of 1:7, and sequentially carrying out a blowing process, a third cotton carding process and a second pre-merging process on the mixed polyester fibers to obtain polyester strips; the polyester cotton plucking process adopts an FA002A cotton plucking machine, wherein the rotating speed is 720r/min, the distance of the blade extending out of the rib is 2.5mm, and the intermittent descending distance of the beater is 3 m/time; in the blowing process, an FA111 single-roller cotton cleaner → an FA046 vibrating hopper cotton feeder → an FA141A single-beater scutcher is sequentially selected, wherein the feeding speed of the FA111 type cotton cleaner is 20HZ, and the beating speed is 1236 r/min; FA046 vibration cotton box cotton feeder corner nail curtain speed 70m/min, uniform cotton beater to corner nail curtain spacing distance 6mm, stripping beater speed 429r/min, uniform cotton roller speed 272r/min, corner nail curtain and stripping beater spacing distance 2mm, corner nail curtain and uniform cotton roller spacing distance 20 mm; the FA141A single beater scutcher comprehensive beater rotation speed 900r/min, the lap roller rotation speed 13r/min, beater speed 1000m/min, the fan rotation speed 1300r/min, the dust rod spacing distance 5mm, the beater and dust rod inlet spacing distance 8mm, the outlet spacing distance 18mm, the beater to stripping knife spacing distance 2mm, the beater to balance bent lever spacing distance 10 mm; the third carding adopts an A186F high-speed carding machine, the dry basis weight of the sliver is 21.48g/5m, the wet basis weight is 21.56g/5m, the actual total draft is 88.42 times, the rotating speed of the poking roller is 690r/min, the rotating speed of the cylinder is 360r/min, the cover plate is 144mm/min, and the rotating speed of the doffer is 24 r/min; the second pre-drawing process adopts an FA306 drawing frame, the pre-drawing yarn dry quantity is 22.61g/5m, the wet quantity is 22.8g/5m, the number of drawing is 8, the drawing mode is three upper and three lower pressure bars and guide upper roller curve drawing, and the yarn drawing speed is 190 m/min;

(5) the prepared mixed cotton combed sliver, the apocynum venetum/cotton mixed combed sliver and the polyester sliver are subjected to a drawing process to prepare a cotton/apocynum venetum/polyester mixed sliver, the drawing process adopts three-pass drawing, including top-pass drawing, secondary drawing and final drawing, wherein the top-pass drawing adopts 8 slivers for feeding, the 8 slivers are sequentially apocynum venetum/cotton mixed combed sliver, mixed cotton combed sliver, polyester sliver, apocynum venetum/cotton mixed combed sliver, mixed cotton combed sliver and polyester sliver, the secondary drawing adopts mixed sliver prepared by 6-pass drawing for feeding, the final drawing adopts mixed sliver prepared by 6-pass drawing for feeding, the prepared cotton/apocynum venetum/polyester mixed sliver is directly prepared into cheese in large packages through a spinning process, and the spinning process adopts an 870 vortex spinning frame; in the drawing process, a first drawing, a second drawing and a last drawing all adopt an FA306A drawing machine, the drawing forms are three upper pressure bars, three lower pressure bars and guide upper rollers for curve drawing, the quantitative quantity of the evenness of the first drawing is 20.04g/5m, the mechanical total drawing is 8.728 times, the tension of a compression roller is 1.02N, the tension of a guide frame is 1.016N, the quantitative quantity of the evenness of the second drawing is 20.06g/5m, the mechanical total drawing is 6.116 times, the tension of the compression roller is 1.02N, the tension of the guide frame is 1.016N, the quantitative quantity of the evenness of the last drawing is 17.99g/5m, the mechanical total drawing is 6.827 times, the tension of the compression roller is 1.02N and the tension of the guide frame is 1.016N; the gauge of the middle roller of the 870 vortex spinning frame is respectively 41mm, 43mm and 43mm, the spinning speed is 370m/min, the coiling ratio is 0.98, the feeding ratio is 0.978, the width of the condenser is 2mm, the pressure of the nozzle is 0.53Mpa and the nozzle is 5 holes.

The blended yarn quality test results are shown in the following table:

breaking strength

Strong CV

Evenness CV

Evenness CVb

（-50%）Details of

(+ 50%) nub

(+ 200%) neps

249.6cN

9.9%

14.62%

1.5

59 pieces/km

56 pieces/km

30 pieces/km

Claims (2)

1. A production method of health care blended vortex yarns, the health care blended vortex yarns comprise machine-harvested cotton fibers, long stapled cotton fibers, polyester staple fibers and apocynum venetum fibers, and are characterized in that: machine adopts cotton fiber, long stapled cotton fiber, dacron short fiber, apocynum venetum fibre to carry out the intertwine with little transition state and little state of twising reverse in the mixed yarn to make four kinds of fibre form an aggregate that has stable structure, make the fibre exist with or comparatively unbend or the state of part complete bending in the mixed yarn simultaneously, thereby make the fibre head end stretch out the probability on mixed yarn surface and reduce by a wide margin, thereby make the surface of mixed yarn comparatively smooth, specifically include following step:

the first step is as follows: preparing long-staple cotton sliver from Xinjiang long-staple cotton fiber with average grade of 3.6 and average length of 36.8mm by a first blowing-carding process, preparing machine-harvested mixed cotton sliver from machine-harvested mixed cotton of American cotton, Australian cotton and Xinjiang cotton with average length of 29.11-30.15mm, grade of 1.9-2.1 and micronaire value of 3.7-4.8 by a first blowing-carding process and a first cotton carding process, mixing the long-staple cotton sliver and the machine-harvested mixed cotton sliver by a first pre-merging process to obtain the mixed cotton sliver, wherein the first pre-drawing process adopts 5 sliver feeding, comprises 3 long-velvet cotton slivers and 2 mechanically-drawn mixed cotton slivers, the long-staple cotton sliver and the mechanically-sampled mixed cotton sliver are fed in a staggered mode, 5 slivers are sequentially the long-staple cotton sliver, the mechanically-sampled mixed cotton sliver, the long-staple cotton sliver, the mechanically-sampled mixed cotton sliver and the long-staple cotton sliver, and the mixed cotton sliver is sequentially subjected to a first doubling process and a first combing process to obtain a mixed cotton combed sliver;

the second step is that: spraying 2% of grease and 10% of water in the mass of the apocynum venetum fibers to wet the apocynum venetum fibers, then carrying out smoldering pretreatment, manually garnetting the pretreated apocynum venetum fibers and the mixed cotton combed strips prepared in the first step according to a required proportion, and then manually mixing, wherein the proportion of the apocynum venetum fibers is less than 50%, and the mixed fibers are sequentially subjected to a second opening picking process, a second cotton carding process and a second combing process to prepare the apocynum venetum/cotton mixed combed strips;

the third step: carrying out cotton bale mixing on 21k polyester fibers generated by an instrument with fineness of 1.12dtex, average length of 37.4mm, breaking strength of 5.97cN/dtex and elongation at break of 26.9% and 31k polyester fibers generated by an instrument with fineness of 1.13dtex, average length of 36.8mm, breaking strength of 5.62cN/dtex and elongation at break of 19.1% according to a ratio of 1:7, and sequentially carrying out a blowing process, a third cotton carding process and a second pre-merging process on the mixed polyester fibers to obtain polyester strips;

the fourth step: the mixed cotton combed sliver prepared in the first step, the apocynum venetum/cotton mixed combed sliver prepared in the second step and the polyester sliver prepared in the third step are subjected to drawing process to prepare cotton/apocynum venetum/polyester mixed sliver, wherein the drawing process adopts three-pass drawing and comprises 8-sliver feeding, and 8-sliver feeding sequentially comprises apocynum venetum/cotton mixed combed sliver, mixed cotton combed sliver, polyester sliver, apocynum venetum/cotton mixed combed sliver, mixed cotton combed sliver and polyester sliver, the two-pass drawing adopts mixed sliver prepared by 6-pass drawing, the last-pass drawing adopts mixed sliver prepared by 6-pass drawing, the prepared cotton/apocynum venetum/polyester mixed sliver is directly prepared into a large-package cheese through the spinning process, wherein the spinning process adopts an 870 vortex spinning frame.

2. The method of producing a health blended vortex yarn of claim 1, wherein: in the first blowing-carding unit, sequentially selecting an FA009 reciprocating plucker → an FA125 weight separator → an FA105A single-axial flow opener → an FA029 multi-bin cotton mixer → an FA116 scutcher → an FA179B cotton box → an FA203A type cotton carding machine, and ensuring that the cotton grabbing amount of each tooth of a cotton grabbing beater blade of the plucker is held slightly according to the principle of fine cotton grabbing in the FA009 reciprocating plucker, wherein the specific process parameters are as follows: the horizontal running speed is 19m/min, the rotating speed of a cotton grabbing beater is 1050rpm, the distance of the blade extending out of the rib is 3mm, and the intermittent descending distance of the beater is 1 mm/time; the FA105A single axial flow cotton opener feeds the raw materials grabbed by the FA009 reciprocating bale plucker through the suction of a condenser, and carries out mixing, opening and impurity removal treatment, wherein the specific process parameters are as follows: the beater is in the form of a brad beater, the diameter of the beater is 750mm, the rotating speed of the beater is 600r/min, the installation angle of a dust rod is 18 degrees, 15 degrees, 10 degrees, the diameter of a leather wing roller is 370mm, the rotating speed of the leather wing roller is 15.9r/min, the number of the dust rods is 64, the distances between the beater and the dust rods are respectively 10mm and 15mm, the distances between the dust rods and the dust rods are respectively 8mm and 10mm, the distances between the roller and the beater are 40mm, and the distances between the beater and a cotton stripping knife are 2.5 mm; in the FA029 multi-bin cotton mixer, fed raw materials are uniformly blown into each cotton bin under the action of air flow to form air flow mixing, fiber scraps in each bin are conveyed through a 90-degree turn, re-mixing is obtained by utilizing the path difference, excessive fibers are thrown into a cotton mixing chamber to achieve careful mixing, and the specific technological parameters are as follows: the angle nail curtain speed is 480 and 800m/min, the conveying belt speed is 6.26-10.29m/min, the rotational speed of a cotton equalizing roller is 726r/min, and the rotational speed of a cotton stripping roller is 412 r/min; the FA116 cotton cleaner further opens and removes impurities, the carding roller of the FA116 cotton cleaner enlarges the frequency conversion speed regulation range, the FA116 cotton cleaner is matched with the dust removal knife and the spacing adjustment of the carding plate, can adapt to the treatment of different cotton containing impurities, and can be made into a cotton flow meeting certain specification and requirements for cotton carding, and the specific technological parameters are as follows: the speed of an upper cotton feeding roller and a lower cotton feeding roller is controlled in a frequency conversion mode, the rotating speed of an opening roller is 981.5r/min, the rotating speed of a carding roller is controlled in a frequency conversion mode, the distance between an accelerating roller and a dust removing knife is 0.8mm, the distance between the accelerating roller and a cotton pressing rod is 3mm, the distance between the accelerating roller and the carding roller is 0.6mm, the distances between the carding roller and a first dust removing knife, a second dust removing knife and a third dust removing knife are respectively 0.7mm, 0.7mm and 0.8mm, the distances between the carding roller and an inlet and an outlet of a carding plate are respectively 2.5mm and 4.0mm, and the distances between the carding roller and an inlet and an outlet of a two carding plate are respectively 1.5; the specific process parameters of the FA203A type carding machine are as follows: the quantitative dry and wet basis weight of the raw strips is 17.07g/5m, the quantitative wet basis weight is 18.26g/5m, the rotating speed of a poking stick is 900r/min, the rotating speed of a cylinder is 400r/min, the rotating speed of a cover plate is 181mm/min, and the rotating speed of a doffer is 80 r/min;

in the first pre-drawing process, an SB2 drawing frame is adopted, 5 slivers are fed, the sliver feeding process comprises 3 long-wool slivers and 2 machine-harvested mixed slivers, the long-wool slivers and the machine-harvested mixed slivers are fed in a staggered mode, and the specific technological parameters are as follows: pre-drawing yarn with a dry weight of 20.02g/5m, a wet weight of 21.42g/5m, a mechanical total draft of 4.306 times, an actual total draft of 4.263 times, and a draft type of 3/3 pressure bars plus guide top roller curve draft;

an E32 type sliver lap combination machine is adopted in the first lap combining procedure as a preparation procedure of combing, small fiber laps with good straightening parallelism, accurate quantification, tight winding, neat edges, uniform longitudinal and transverse directions, no lap adhesion and large package are provided for the combing machine, an even number of combing preparation procedures are adopted, most of fibers in the small fiber laps can be in a front hook state, the small lap quantification is heavier, the yield and the quality of the combing machine can be improved, and the specific technological parameters are as follows: the dry quantitative 64.65g/m, the wet quantitative 69.18g/m, the draft form is 3/3 draft pneumatic pressurization, the mechanical total draft is 1.514, the actual total draft is 1.499, the main zone draft is 1.467 times, the rear zone draft is 1.032 times, the coiling speed is 105m/min, the gauge of the roller base is respectively 8mm and 12mm, the main zone draft gauge is 42mm, and the rear zone draft gauge is 45 mm;

an E62 type combing machine is adopted in the first combing, the combing machine is used for removing short fibers below 16mm in a lap and removing neps, impurities and fiber defects, the dry quantitative quantity of combed slivers is 20.88g/5m, the wet quantitative quantity is 22.24g/5m, the drafting mode is three-upper-five-lower pressure bar drafting, the number of combined pieces is 8, the mechanical total drafting multiple is 104.004 times, the actual total drafting multiple is 123.81 times, the cylinder speed is 255 pinches/min, the sliver discharging speed is 80m/min, the roller spacing is 7mm, the feeding length is 4.7mm, and the top combing-separating roller is 3.65 mm;

in the second opening picking process, an FA035 type mixed opener → an FA016 type opener → an FA076 type single beater scutcher is adopted in sequence, the technological principle of 'fine picking, more combing and less beating' is followed, and the FA035 type mixed opener is in a parallel beater form; the FA106 type is a porcupine type opener, adopts a card wire beater, is soft in opening and free of fiber loss, properly improves the spacing between dust bars of the stripping beater, ensures that fiber flow is smoothly conveyed to a lap former, and reduces the cotton breakage rate; a FA076 single beater scutcher adopts a comprehensive beater, the rotating speed of the beater is increased, the storage capacity of a cotton box is observed in the coiling process, the weight unevenness rate of cotton rolls is improved, the basis weight of the cotton rolls is 12.35kg, the rotating speed of a fan is 1330 r/min, and the rotating speed of a cotton roll roller is 11 r/min;

the FA201B type carding machine is adopted in the second carding process, the rotating speed of the flat cover plate is properly reduced to reduce the load of the needle surface, and the number of the flat cover plate is reduced; the space between the licker-in and the dust removing knife is increased, so that the short apocynum venetum fiber is prevented from being removed as impurities; the distance between the cylinder and the front upper cover plate is reduced, so that the fiber layer is pressed by the front upper cover plate, the fibers are easy to be grabbed by the cylinder needle teeth, and the number of cover plate flowers is reduced; the time interval of the cylinder-cover plate outlet is mastered slightly, and the middle gears can be slightly tight, so that the carding is facilitated; when the fiber is rolled into a strip, the motor frequency is reduced, and the fiber damage is reduced; the specific process parameters are as follows: the cover plate rotating speed is 71.9r/min, the frequency is 20Hz, the cotton feeding plate-licker-in gauge is 10 inches, the licker-in-dust removing knife gauge is 13 inches, the licker-in-cylinder gauge is 7 inches, the cylinder-cover plate gauge is respectively 10 inches, 9 inches, 8 inches, 9 inches, the cylinder-front upper cover plate gauge is 33 inches, the cylinder-front lower cover plate gauge is 26 inches, and the cylinder-doffer is 5 inches;

in the polyester cotton grabbing process, an FA002A plucker is selected, and the small grabbing amount of each tooth of a plucker beater blade of the plucker is guaranteed to be mastered according to the principle of fine grabbing; the specific process parameters are as follows: the rotating speed is 720r/min, the distance of the blade extending out of the rib is 2.5mm, and the intermittent descending distance of the beater is 3 m/time;

in the blowing process, an FA111 single-roller scutcher → an FA046 vibrating hopper feeder → an FA141A single-beater lap former is sequentially selected, wherein the FA111 type scutcher is mainly used as a pre-scutcher in the opening and scutching process and comprises a card wire roller, a carding plate, a dust removing knife, a continuous suction port and an adjusting plate capable of adjusting noil, the cotton feeding speed is 20HZ, and the beater speed is 1236 r/min; the FA046 vibrating hopper cotton feeder adopts a vibrating hopper to feed cotton, cotton blocks freely fall from the vibrating hopper to ensure the uniform and consistent transverse density of a cotton layer, photoelectric control is carried out to ensure the reliability and continuity of the machine work, the transverse cotton falling can be subjected to frequency and amplitude adjustment by a vibrating plate, the yield can be adjusted by a conversion belt wheel and a cotton feeding plate, electrical cotton distribution can be adopted, and an airflow cotton distribution mode can be adopted, wherein the speed of a pin curtain is 70m/min, the spacing distance between a cotton homogenizing beater and a pin curtain is 6mm, the speed of a stripping beater is 429r/min, the speed of a cotton homogenizing roller is 272r/min, the spacing distance between the pin curtain and the stripping beater is 2mm, and the spacing distance between the pin curtain and the cotton homogenizing roller is 20 mm; the FA141A single beater scutcher is suitable for processing various cotton rolls with width of 960mm, length of 30-80 m, weight of 16-30 cotton rolls and weight of 13kg chemical fiber rolls, further opening and removing impurities on fibers and manufacturing the cotton rolls for a carding machine, and integrates beater rotation speed of 900r/min, lap roller rotation speed of 13r/min, beater speed of 1000m/min, fan rotation speed of 1300r/min, dust rod spacing distance of 5mm, beater and dust rod inlet spacing distance of 8mm, outlet spacing distance of 18mm, beater to stripping knife spacing distance of 2mm and beater to balance bent rod spacing distance of 10 mm;

the third carding adopts an A186F high-speed carding machine, the dry basis weight of the sliver is 21.48g/5m, the wet basis weight is 21.56g/5m, the actual total draft is 88.42 times, the rotating speed of the poking roller is 690r/min, the rotating speed of the cylinder is 360r/min, the cover plate is 144mm/min, and the rotating speed of the doffer is 24 r/min;

the second pre-drawing process adopts an FA306 drawing frame, the pre-drawing yarn dry quantity is 22.61g/5m, the wet quantity is 22.8g/5m, the number of drawing is 8, the drawing mode is three upper and three lower pressure bars and guide upper roller curve drawing, and the yarn drawing speed is 190 m/min;

in the drawing process, a first drawing, a second drawing and a last drawing all adopt an FA306A drawing machine, the drawing forms are three upper pressure bars, three lower pressure bars and guide upper rollers for curve drawing, the quantitative quantity of the evenness of the first drawing is 20.04g/5m, the mechanical total drawing is 8.728 times, the tension of a compression roller is 1.02N, the tension of a guide frame is 1.016N, the quantitative quantity of the evenness of the second drawing is 20.06g/5m, the mechanical total drawing is 6.116 times, the tension of the compression roller is 1.02N, the tension of the guide frame is 1.016N, the quantitative quantity of the evenness of the last drawing is 17.99g/5m, the mechanical total drawing is 6.827 times, the tension of the compression roller is 1.02N and the tension of the guide frame is 1.016N;

in the spinning process, an 870 vortex spinning frame is adopted, the roller gauge is respectively 41mm, 43mm and 43mm, the spinning speed is 370m/min, the coiling ratio is 0.98, the feeding ratio is 0.978, the width of a condenser is 2mm, the nozzle pressure is 0.53MPa, and the nozzle is 5 holes.