CN106637563B - A kind of production method of pure natural colour-spun yarns - Google Patents

Abstract

A production method of natural colored spinning yarn, which is made by 40% colored cotton fiber and 60% cotton fiber dyed with natural dye through siro spinning, wherein the cotton fiber dyed with natural dye includes 30% American cotton, 30% Australian cotton, 40% Indian cotton. The colored cotton fiber is pre-opened, and sprayed with 0.5% sugar-removing agent, stacked for 24 hours, and then through the first opening and cleaning, and the first carding to make colored cotton carded slivers; dyed with natural dyes The final American cotton, Australian cotton, and Indian cotton are packaged and combed to make dyed cotton slivers; the dyed cotton slivers are shredded into mixed cotton fibers, which are then manually baled, and after the second opening and cleaning, the second carding 1. Combed dyed cotton combed slivers obtained by the first combing; mixed cooked slivers were obtained by three drawing processes of colored cotton carded raw slivers and dyed cotton combed slivers; spinning. The yarn and the fabric produced by the invention are green and environmentally friendly, have various patterns and colors, clear layers, natural color and luster, and have high added value.

Description

A kind of production method of pure natural colored spinning yarn

technical field

The invention relates to the field of novel yarns, in particular to a production method of pure natural colored spinning yarn.

Background technique

With the improvement of people's living standards, healthy, environmentally friendly and comfortable textiles are becoming more and more popular. Under the premise of green and low carbon, people develop new fabrics with unique styles, pursue colorful life and show personal style. Natural colored cotton does not require chemical dyeing, its color is soft, simple and elegant, its texture is softer, better in hand, more elastic than ordinary cotton, and it is not suitable for dyes, which reduces production costs, saves energy, reduces environmental damage, and is beneficial to health and environmental protection. The color-spun yarn that has been popular in recent years not only has rich colors, novel color matching and strong three-dimensional effect, but also the fabrics made of it have soft and full color and strong layering, which are deeply loved by consumers. Because the fiber is dyed before spinning, many new products with different styles can be designed and developed through the combination of different colors. At the same time, fiber dyeing overcomes the difference in coloring rate caused by the difference in macromolecular structure of different raw materials. In the invention, colored cotton fibers and cotton fibers dyed with natural dyes are made into natural colored spinning yarns, which have better yarn quality, various fabric styles and greatly increased added value of products.

The invention provides a kind of natural colored spinning yarn and its production method, which can make colored cotton fiber and dyed cotton fiber into natural colored spinning yarn with good quality. , Natural color, high added value, the yarn structure is optimized, and the yarn quality is better.

Contents of the invention

The object of the present invention is to provide a natural color spinning yarn and its production method. The yarn not only has rich colors, novel color matching and strong three-dimensional effect, but also the fabric made from it has soft and plump color and strong sense of layering. , random combination of dyed fibers, various fabric styles, healthy and environmentally friendly, especially suitable for making underwear, baby clothes, etc.

In order to achieve the above-mentioned purpose, the technical scheme adopted by the present invention is as follows: a natural color spinning yarn, which is made of colored cotton fiber and cotton fiber dyed with natural dyes through Siro spinning.

For realizing the production of above-mentioned natural color spinning, the present invention adopts following production method, comprises the following steps:

The first step is to pre-open the colored cotton fiber, spray 0.5% sugar-removing agent, store it for 24 hours, and then go through the first opening and cleaning process and the first carding process to make colored cotton carded sliver ;

In the second step, the American cotton, Australian cotton, and Indian cotton dyed with natural dyes are mixed and packaged according to the ratio of 3:3:4, and dyed cotton slivers are made into dyed cotton slivers through the cleaning and carding process;

In the third step, the raw dyed cotton slivers are shredded into mixed cotton fibers, and then manually packed, and the dyed cotton combed slivers are obtained through the second cotton cleaning process, the second carding process, and the first combing process;

The fourth step is to prepare mixed cooked sliver by three drawing processes of colored cotton carded raw sliver and dyed cotton combed sliver;

In the fifth step, the mixed cooked sliver is prepared through a roving process and a spun process to obtain a natural colored spun yarn, wherein the spun process adopts a siro spinning method.

Using the above-mentioned production process, the colored cotton fiber and the cotton fiber dyed with natural dyes can be made into natural colored yarn with good quality, especially in the third step, the dyed cotton sliver is artificially torn into mixed cotton fiber, and then packed manually , through the second opening and cleaning process, the second carding process, and the first combing process to obtain dyed cotton combed sliver; the fourth step, the colored cotton carded raw sliver and dyed cotton combed sliver are drawn through three times The process is to prepare mixed cooked slivers; in the fifth step, the mixed cooked slivers are processed through a roving process and a spun process to obtain a natural colored spun yarn, wherein the spun process adopts a siro spinning method.

The technical scheme that technique of the present invention is further improved is as follows:

Preferably, in the first step, the first opening and cleaning process is used to obtain colored cotton rolls. In the first opening and cleaning process, the colored cotton fibers are pre-opened, and 0.5% sugar-removing agent is sprayed. Keeping healthy for 24 hours, then catching cotton, the beater stretches out the ribs to be 1.5-2mm, the falling stroke of the cotton catching machine is 1.5-2mm, the beater speed of the cotton mixing machine is 470-480r/min, and the distance between the dust bar of the cotton mixing box is 12-13mm, porcupine opener beater speed is 480-500r/min, porcupine opener dust stick distance is 12-13mm, multi-bin cotton blender beater speed is 430-450r/min, lapping machine beater speed is 750-780r/min, fan speed 1400-1500r/min, lap roller speed 11-13r/min, lap weight 390-420g/m.

More preferably, in the first step, the first opening and cleaning process adopts the process principle of "grasping frequently and less grasping, combing more and beating less, fully mixing, and reducing the speed of the vehicle".

In the above-mentioned first opening and cleaning process, because the colored cotton has a high sugar content, in order to prevent the phenomenon of sticking rolls and rollers in the subsequent processes, the colored cotton is first sprayed with 0.5% sugar-removing agent for stacking treatment. Due to the characteristics of short fiber, fine fineness, high impurity content and poor strength of colored cotton, the process principle of "frequent grasping and less grasping, more combing and less beating, and full mixing" is adopted. Reduce the speed of the beater, so as not to beat the fiber into bundles and increase the neps. Appropriately reduce the distance between beaters and dust rods, increase the distance between dust rods, increase the noil, and increase the effect of impurity removal.

Preferably, in the first step, the first carding process is used to obtain colored cotton carded raw slivers. In the first carding process, the angle of the dedusting knife is 70-75 degrees, and the licker-in cylinder gauge is 0.18-0.2 mm, the licker-in speed is 780-820r/min, the cylinder speed is 340-360r/min, the cover plate speed is 240-250mm/min, the doffer speed is 20-22r/min, the cylinder-cover plate gauge is 0.17 mm, 0.15mm, 0.15mm, 0.15mm, 0.17mm, raw sliver weight is 18-20g/5m, sliver delivery speed is 45-50m/min.

More preferably, in the first step, the first carding process adopts the process principle of "slow speed, small gauge, light quantity, and small tension".

In the above-mentioned first carding process, in view of the characteristics of high impurity content and high linter rate of colored cotton, the angle of the dust removal knife is lowered to increase impurity removal and prevent the recovery of linters. Appropriately reduce the speed of the licker-in roller, reduce the impact force of the licker-in roller on the cotton layer, reduce the damage to the fiber, control the generation of neps and short fibers, and improve the yarn quality. However, the licker-in speed should not be set too low, too low will affect the carding effect and impurity removal effect, and the impurity in the raw sliver will increase. Appropriately increase the speed of the flats, increase the flower quantity of the flats, and reduce the nep impurities of the card sliver.

Preferably, in the second step, the dyed cotton sliver is obtained by using the cleaning and carding process. In the cleaning and carding process, the beater of the reciprocating catching machine drops by 1.5-2mm intermittently, and the speed of the catching beater is 900-950r/min. The rotation speed of the corner nail beater of the axial flow cotton opener is 600-700r/min, the rotation speed of the cotton equalizing roller of the multi-compartment blending machine is 650-750r/min, the rotation speed of the stripping roller is 500-600r/min, and the rotation speed of the porcupine opener blade is 450-500r/min, the rotation speed of the feeding roller is 42-48r/min, the rotation speed of the cylinder of the carding machine is 360-400r/min, the rotation speed of the licker-in roller is 820-850r/min, and the linear speed of the flat plate is 240-250mm/min , the doffer speed is 20-22r/min, and the raw sliver weight is 18-30g/5m.

More preferably, in the second step, the blowing-carding process adopts the process principle of "fine cotton pickling, early falling and less crushing, full mixing, and less fiber damage".

In the above-mentioned cleaning and carding process, fine cotton picking and multi-compartment blending machines are used to fully mix 30% American cotton, 30% Australian cotton and 40% Indian cotton dyed with natural dyes.

Preferably, in the third step, the shredded mixed cotton fibers are made into dyed cotton laps through the second opening and cleaning process. The descending stroke is 1.5-2mm, the beater speed of the cotton opener is 450-480r/min, the beater speed of the multi-bin cotton blender is 430-450r/min, the beater speed of the lapping machine is 750-780r/min, and the fan speed is 1400 -1500r/min, lap roller speed is 11-13r/min, lap weight is 390-420g/m.

More preferably, in the third step, the second cotton opening and cleaning process adopts the process principle of "reducing the speed of the vehicle, combing instead of beating, more loosening and less beating, frequent grasping and less grasping, early falling and less crushing, gradual cotton opening, and uniform mixing".

In the above-mentioned second cotton cleaning process, because the cotton wax and natural curl on the surface of the cotton fiber after dyeing are destroyed, the cohesion force between the fibers is weakened, and the fiber elasticity is poor. Although some impurities are removed by the action of alkali, the fiber straightens The parallelism is poor, so the process of opening and cleaning cotton adopts the process principle of "combing instead of beating" as much as possible to reduce fiber damage, and adopts the process principle of "grasping frequently and grasping less" to make impurities fall as early as possible and less broken. In order to avoid the existence of color difference during fiber dyeing, a multi-chamber cotton blender is used to mix the colored fibers evenly.

Preferably, in the third step, the dyed cotton sliver is produced by the second carding process, and in the second carding process, the distance between the cylinder and the cover plate is 0.2mm, 0.18mm, 0.18mm, 0.18mm, 0.2mm , raw sliver basis weight is 18-20g/5m, licker-in speed is 730-748r/min, cylinder speed is 330-354r/min, cover plate speed is 250-260r/min, strip delivery speed is 48-50m/min .

More preferably, in the third step, the second carding process adopts the technological principle of "tight gauge, slow speed, and large speed ratio."

In the above-mentioned second carding process, the process principle of "tight gauge" is adopted between the cylinder and the cover plate to increase the ability of carding between the needle faces and reduce the probability of fibers kneading into neps between the two needle teeth, thereby controlling Quality indicators for neps and color knots. Appropriately increasing the linear speed ratio of licker-in roller and cylinder is beneficial to improve fiber carding degree and fiber transfer rate, and reduce fiber damage.

Preferably, in the third step, the dyed cotton combed sliver is obtained by the combing process, and the combing process adopts the method of retreating to feed the cotton. In the combed cotton process, the speed of the machine is 200-240 clamps/min, and the length of the cotton feeding is 4.2-4.6mm, the noil rate is controlled between 16%-18%, and the basis weight of dyed cotton combed sliver is 18-20g/5m.

In the above-mentioned combing process, due to the reduction of cotton fiber strength after dyeing, a large amount of short fibers are produced during the carding process. In the combing process, by appropriately increasing the noil rate, most of the short fibers are removed, fiber parallelism is improved, and colored yarns are improved. Dry level.

Preferably, in the fourth step, the mixed cooked sliver is obtained by using three drawing processes, the three drawing processes comprising the first drawing process, the second drawing process and the three drawing processes, in the first drawing process , 3 colored cotton carded slivers and 5 dyed cotton combed slivers are merged, the front roller line speed is 160-170m/min, the roller gauge is 6mm, 14mm, the total draft ratio is 7.89 times, and the rear area draft The elongation ratio is 1.73 times, the basis weight of the first drawing frame is 19.0g/5m, and the bell mouth diameter is 3.6mm. In the second drawing process, the front roller line speed is 155-165m/min. The pitch is 6mm and 14mm, the total draft ratio is 8.44 times, the draft ratio in the back area is 1.57 times, the basis weight of the second drawing frame is 18.0g/5m, the diameter of the bell mouth is 3.4mm, in the third drawing process, the front roller The line speed is 150-160m/min, 8 double-drawing frames are merged, the roller gauge is 4mm, 12mm, the total draft ratio is 9.0 times, the draft ratio in the rear area is 1.43 times, and the weight ratio of the three-pass drawing frames is 16.0 g/5m, the bell mouth diameter is 3.2mm.

More preferably, in the fourth step, the three drawing frames adopt the process principle of "sequential drafting, heavy pressure, small gauge, light weight, and slow speed".

In the above three drawing processes, in order to ensure that the fibers are evenly mixed, the drawing adopts the method of combining 8 fibers in each of the three draws. Adopt the process principle of "sequential drafting", adopt a larger drafting ratio in the rear area at the first stage, and adopt a concentrated drafting method in the final stage, mainly to improve the straightening parallelism of the fibers and the evenness of the cooked sliver. Adopt the process principle of "heavy pressure, small gauge, light weight, slow speed" to improve the parallelism of fiber straightening, increase the degree of orientation and separation of fibers, improve the evenness of evenness, and reduce the unevenness of weight. Cotton fibers after dyeing have poor spinnability. In order to prevent the color stripes from wrapping around the rubber rollers and ensure smooth production, the rubber rollers need to be treated with paint.

Preferably, in the fifth step, the mixed roving is obtained by using the roving process. In the roving process, the twist coefficient is 110-116, the front roller speed is 20-22m/min, and the flyer speed is 850-900r/min. The stretch ratio is 1.35 times, the total draft ratio is 8.0-9.14 times, the basis weight is 3.5-4g/10m, the roller gauges are 8mm, 24mm, 27mm, and the jaw is 6.5mm.

More preferably, in the fifth step, the roving process adopts the process principle of "smaller gauge, larger twist, smaller basis weight, and small rear area drafting ratio".

In the above-mentioned roving process, due to the short length of colored cotton fibers, reducing the roller gauge is beneficial to better control the floating fibers in the drafting zone, appropriately reducing the drafting multiple in the rear zone, and playing the role of the main drafting zone. It is beneficial to improve the evenness CV value of the roving and increase the twist coefficient of the roving. In view of the weakened cohesion between fibers after dyeing, the roving is prone to unexpected elongation on the spinning frame, so the roving weight should be controlled too small and the twist should be controlled too large.

Preferably, in the fifth step, natural color spun yarn is obtained by using the spinning process, the spinning process adopts the Siro spinning method, adopts the four-roller grid ring type compact spinning ring spinning frame, selects soft elastic high-density rubber rollers, and forms the yarn The twist coefficient is 360-380, the roller center distance is 40-42mm, 48-52mm respectively, the spindle speed is 9000-10000r/min, the draft ratio in the back area is 1.21 times, the gap between the jaws is 2.5mm, and it is equipped with self-lubricating steel Collar and cradle pressure are 240N/double spindle, 160N/double spindle, 200N/double spindle respectively, and the accumulation negative pressure is 1800Pa-2100Pa.

More preferably, in the fifth step, the spinning process adopts the process principle of "smaller rear draft, large twist, slow speed, and heavy pressure".

In the above-mentioned spinning process, the drafting in the small rear area is adopted, and the drafting in the front area is concentrated to strengthen the effective control of the fiber in the drafting process. Appropriately reducing the spindle speed is beneficial to reduce end breakage and improve yarn evenness. The use of a larger spun yarn twist coefficient is conducive to maintaining the tightness between the strands, increasing the cohesion between fibers, and improving yarn quality. In addition, the gap in the rear area is too large to prevent the draft from being blocked, and to reduce yarn defects such as short thick knots and neps.

Specific implementation methods:

Below in conjunction with embodiment the present invention is done in further detail. However, the invention is not limited to the examples given.

Example

Take the production of 13.1tex natural color spinning on the QFA1528 ring spinning frame equipped with grid circle compact spinning as an example, which is made of colored cotton fibers and cotton fibers dyed with natural dyes through Siro spinning.

The specific production plan is as follows: pre-open the colored cotton fibers, spray 0.5% sugar-removing agent, stack them for 24 hours, and then go through the first opening and cleaning process and the first carding process to make colored cotton Carding slivers; packing American cotton, Australian cotton, and Indian cotton dyed with natural dyes, and making dyed cotton slivers through the cleaning and carding process; tearing the dyed cotton slivers into mixed cotton fibers, and then packing them manually. The second opening and cleaning process, the second carding process, and the first combing process produce dyed cotton combed sliver; the colored cotton carded raw sliver and dyed cotton combed sliver are prepared through three drawing processes to produce mixed cooked sliver ; The mixed cooked sliver is processed through the roving process and the spun process to obtain the natural color spun yarn, wherein the spun process adopts the siro spinning method.

(1) The first cotton cleaning process: Pre-open the colored cotton fibers, spray 0.5% sugar-removing agent, stack the warehouse for 24 hours, and then pluck the cotton. The beater's descending stroke is 2mm, the beater speed of the cotton mixing machine is 475r/min, the distance between the dust bars of the cotton mixing box is 12mm, the beater speed of the porcupine opener is 480r/min, and the distance between the dust bars of the porcupine opener is 12mm. The beater speed of the warehouse blender is 440r/min, the beater speed of the lap machine is 760r/min, the fan speed is 1400r/min, the lap roller speed is 12r/min, and the basis weight of the lap is 400g/m.

(2) The first carding process: the angle of the dust removal knife is 73 degrees, the height of the dust removal knife is -2mm, the licker-in cylinder gauge is 0.19mm, the licker-in roller speed is 800r/min, and the cylinder speed is 350r/min , the cover plate speed is 240mm/min, the doffer speed is 22r/min, the cylinder-cover plate gauge distance is 0.17mm, 0.15mm, 0.15mm, 0.15mm, 0.17mm, the raw sliver weight is 20g/5m, and the delivery speed It is 48m/min.

(3) Blowing and carding process: the beater of the reciprocating plucking machine drops 2mm intermittently, the speed of the catching beater is 900r/min, the speed of the corner nail beater of the single-axis flow opener is 650r/min, and the cotton equalizing roller of the multi-bin cotton blending machine The rotating speed is 700r/min, the rotating speed of the stripping roller is 550r/min, the rotating speed of the porcupine opener blade is 480r/min, the rotating speed of the feeding roller is 46r/min, the rotating speed of the cylinder of the carding machine is 380r/min, and the rotating speed of the licker-in roller is 850r/min, the flat line speed is 250mm/min, the doffer speed is 22r/min, and the raw sliver weight is 26g/5m.

(4) The second opening and cleaning process: the beating hand stretches out to 1.5mm, the falling stroke of the beating machine is 2mm, the beating speed of the cotton opening machine is 460r/min, and the beating speed of the multi-bin cotton mixing machine is 450r/min. The beater speed of the lap machine is 780r/min, the fan speed is 1500r/min, the lap roller speed is 12r/min, and the basis weight of the lap is 400g/m.

(5) The second carding process: the distance between the cylinder and the cover plate is 0.2mm, 0.18mm, 0.18mm, 0.18mm, 0.2mm, the weight of the raw sliver is 18g/5m, the licker-in speed is 740r/min, the cylinder The speed is 354r/min, the cover plate speed is 260r/min, and the delivery speed is 48m/min.

(6) Combed cotton process: described combed process adopts the mode of back feeding cotton, in described combed cotton process, speed of a vehicle is 240 pincers/min, length of feeding is 4.4mm, and noil rate is controlled at 16% , dyed cotton combed slivers quantitatively 18g/5m.

(7) Three drawing processes: in the first drawing process, 3 colored cotton carded slivers and 5 dyed cotton combed slivers are merged, the front roller line speed is 170m/min, and the roller gauge is 6× 14mm, the total draft ratio is 7.89 times, the draft ratio in the back area is 1.73, the weight of the drawing frame in the first pass is about 19.0g/5m, and the diameter of the bell mouth is 3.6mm. In the second drawing process, the front roller line speed is 165m/min, 8 heads are paralleled, the roller gauge is 6×14mm, the total draft ratio is 8.44, the rear zone draft ratio is 1.57, the weight of the second draft is about 18.0g/5m, and the bell mouth diameter is 3.4mm , in the three drawing frames, the front roller line speed is 160m/min, 8 two drawing frames are merged, the roller gauge is 4×12mm, the total draft ratio is 9.0, and the rear area draft ratio is 1.43. The drawing weight of the channel is about 16.0g/5m, and the diameter of the bell mouth is 3.2mm.

(8) Roving process: the twist coefficient is 112, the speed of the front roller is 22m/min, the speed of the flyer is 880r/min, the draft ratio in the rear area is 1.35, the total draft ratio is 8.89, and the weight is 3.6g/10m. The gauge is 8×24×27, and the jaw is 6.5mm.

(9) Spinning process: adopt the Siro spinning method, adopt the four-roller grid ring type compact spinning ring spinning frame, use soft elastic high-density rubber rollers, the twist coefficient of the yarn is 360-380, and the center distance of the rollers is 41×50mm , the spindle speed is 10000r/min, the draft ratio in the rear area is 1.21, the jaw gap is 2.5mm, equipped with self-lubricating steel rings, the cradle pressure is 240×160×200N/double spindle, and the accumulation negative pressure is 1800Pa-2100Pa .

After testing, the indicators of the natural color spinning yarn produced according to the above method are as follows:

Claims (1)

1. a kind of production method of pure natural colour-spun yarns, by the cotton fiber of color cotton fiber and natural dye dying through Siro-spinning side Formula is processed into, it is characterized in that：Include the following steps：

Color cotton fiber carries out pre- shredding by the first step, and sprays 0.5% and go sugared agent, heap storage health 24 hours, then is opened through first Color cotton regular carding card sliver is made in scutching cotton process, the first carding step；Color cotton cotton roll, the first opening or cleaning are made using the first opening and cleaning step In cotton process, color cotton fiber is subjected to pre- shredding, and sprays 0.5% and go sugared agent, heap storage health 24 hours, then carries out grabbing cotton, It is 1.5-2mm that hired roughneck, which stretches out rib, and it is 1.5-2mm that griping cotton machine hired roughneck, which declines traverse, and cotton blender machine Beater Speed is 470-480r/ Min, blending box dirt stick gauge be 12-13mm, porcupine opener Beater Speed be 480-500r/min, porcupine opener dirt stick every Away from for 12-13mm, multi-mixer Beater Speed is 430-450r/min, and lapper Beater Speed is 750-780r/min, wind Fan speed is 1400-1500r/min, and coiled roller speed is 11-13r/min, cotton rolling quantity 390-420g/m；Using first Carding step is made color cotton regular carding card sliver, and in the first carding step, mote knife angle is 70-75 degree, and licker-in-cylinder gauge is 0.18-0.2mm, licker-in speed 780-820r/min, cylinder speed 340-360r/min, cover plate speed 240-250mm/ Min, doffer speed 20-22r/min, cylinder-Flat Gauge are 0.17mm, 0.15mm, 0.15mm, 0.15mm, 0.17mm, life Item quantification of 18-20g/5m, sliver exporting speed 45-50m/min；

Second step, by after natural dye dying U.S. cotton, Australian cotton, Indian cotton is according to 3:3:4 ratio mixing is beaten Packet, the dyed cotton carded sliver is made through Blowing carding process；The dyed cotton carded sliver is made using Blowing carding process, in Blowing carding process, back and forth Formula griping cotton machine hired roughneck's interval declines 1.5-2mm, and it is 900-950r/min to grab cotton hired roughneck's rotating speed, and Single axial waste silk opener brad hired roughneck turns Speed is 600-700r/min, and multi-mixer evener roller rotating speed is 650-750r/min, and pattern doffing roller rotating speed is 500-600r/ Min, porcupine opener rotating speed of flail are 450-500r/min, and feed roll motor rotating speed is 42-48r/min, breast swift rotating speed For 360-400r/min, licker-in rotating speed is 820-850r/min, and cover board linear velocity is 240-250mm/min, doffing speed 20- 22r/min, weight of card sliver 18-30g/5m；

Third walks, and the dyed cotton carded sliver is discerped into mixing cotton fiber, then hand press-packing, through the second opening and cleaning step, the second cotton carding Dyed cotton yarn is made in process, the first combing process；Dye is made using the second opening and cleaning step in the mixing cotton fiber discerped Color cotton cotton roll, in the second opening and cleaning step, it is 1.5-2mm that hired roughneck, which stretches out rib, and it is 1.5-2mm that griping cotton machine hired roughneck, which declines traverse, Opener Beater Speed is 450-480r/min, and multi-mixer Beater Speed is 430-450r/min, lapper Beater Speed For 750-780r/min, fan speed 1400-1500r/min, coiled roller speed is 11-13r/min, and cotton rolling quantity is 390-420g/m；The dyed cotton carded sliver is made using the second carding step, in the second carding step, cylinder is with cover board interval distance 0.2mm, 0.18mm, 0.18mm, 0.18mm, 0.2mm, weight of card sliver 18-20g/5m, licker-in speed 730-748r/min, Cylinder speed is 330-354r/min, cover plate speed 250-260r/min, sliver exporting speed 48-50m/min；Using combing work Dyed cotton yarn is made in sequence, by the way of combing process is using retreating to cotton, in combing cotton process, speed be 200-240 pincers it is secondary/ Min is 4.2-4.6mm to cotton length, and linters rate controls between 16%-18%, the quantification of 18-20g/ of dyed cotton yarn 5m；

Mixing ripe bar is made through three mixing in doubling step in color cotton regular carding card sliver and dyed cotton yarn by the 4th step；Simultaneously using three Mixing ripe bar is made in process, and three mixing in doubling step include slubbing mixing in doubling step, two mixing in doubling step and three mixing in doubling step, head In road mixing in doubling step, 3 color cotton regular carding card slivers and 5 root dyeing cotton yarns simultaneously close, and front roller linear velocity is 160-170m/min, Roller gauge is 6mm, 14mm, and total draft multiple is 7.89 times, and 1.73 times of back zone drafting multiple, slubbing drafting quantifies 19.0g/ 5m, horn mouth diameter 3.6mm, in two mixing in doubling step, front roller linear velocity is 155-165m/min, and 8 slubbing draftings simultaneously close, Roller gauge is 6mm, 14mm, and total draft multiple is 8.44 times, and back zone drafting multiple is 1.57 times, and two draftings are quantification of 18.0g/5m, a diameter of 3.4mm of horn mouth, in three mixing in doubling step, front roller linear velocity is 150-160m/min, 8 two Drafting simultaneously closes, roller gauge 4mm, 12mm, and total draft multiple is 9.0 times, and back zone drafting multiple is 1.43 times, and three draftings are fixed Amount is 16.0g/5m, a diameter of 3.2mm of horn mouth；

Natural colour-spun yarns are made through Roving Frames and spinning process in mixing ripe bar by the 5th step, and wherein spinning process is using match network Spin spinning system；Mixing rove is made using Roving Frames, in Roving Frames, twist factor 110-116, front roller rotating speed is 20-22m/min, flier rotating speed are 850-900r/min, and back zone drafting multiple is 1.35 times, total draft multiple 8.0-9.14 Times, quantification of 3.5-4g/10m, roller gauge is respectively 8mm, 24mm, 27mm, jaw 6.5mm；It is made using spinning process Natural colour-spun yarns, spinning process use Siro-spinning mode, using four roller grid ring type compact spinning rings, select soft The highly dense rubber roller of elasticity, resultant yarn twist factor are 360-380, and ratch is respectively 40-42mm, 48-52mm, ingot speed 9000- 10000r/min, back zone drafting multiple are 1.21 times, nip gauge 2.5mm, configure self-lubricating rings, reel cage pressure is respectively The bis- ingots of 240N/, the bis- ingots of 160N/, the bis- ingots of 200N/, it is 1800Pa-2100Pa to gather negative pressure.