CN110923880A - Preparation method of cotton hemp acrylic blended yarn - Google Patents
Preparation method of cotton hemp acrylic blended yarn Download PDFInfo
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- CN110923880A CN110923880A CN201911260083.7A CN201911260083A CN110923880A CN 110923880 A CN110923880 A CN 110923880A CN 201911260083 A CN201911260083 A CN 201911260083A CN 110923880 A CN110923880 A CN 110923880A
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- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
- D02G3/02—Yarns or threads characterised by the material or by the materials from which they are made
- D02G3/04—Blended or other yarns or threads containing components made from different materials
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- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2201/00—Cellulose-based fibres, e.g. vegetable fibres
- D10B2201/01—Natural vegetable fibres
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- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2201/00—Cellulose-based fibres, e.g. vegetable fibres
- D10B2201/01—Natural vegetable fibres
- D10B2201/02—Cotton
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- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2321/00—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D10B2321/10—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds polymers of unsaturated nitriles, e.g. polyacrylonitrile, polyvinylidene cyanide
Abstract
The invention discloses a preparation method of cotton hemp orlon blended yarn, which comprises the following steps: (1) opening hemp; (2) hemp pretreatment; (3) preparing raw strips of the hemp acrylic fiber subjected to primary knot removal; (4) preparing cotton slivers; (5) preparing raw strips of hemp acrylic fibers for secondary knot removal; (6) carrying out head combination; (7) di-and final; (8) forming rough yarns; (9) forming spun yarn; (10) and finally, forming yarn by using an automatic winder to remove yarn defects and form a bobbin. The invention has low yarn-forming neps and fully solves the neps problem of hemp varieties and cloth cover holes.
Description
Technical Field
The invention relates to the technical field of fiber production, in particular to a preparation method of cotton hemp orlon blended yarn.
Background
Hemp fiber is the finest and softest of various fibers, the fineness is only one third of that of ramie, the fineness is equivalent to that of cotton fiber, the fiber top end is blunt and round, and the sharp top end is not like ramie and flax. The finished product is particularly soft and adaptive, a plurality of cracks and small hole phase edges are longitudinally distributed on the long and thin cavity in the center of the hemp fiber and the surface of the fiber, an excellent capillary effect is formed, the perspiration and the moisture absorption are good, the cross section of the hemp fiber is more complex than that of ramie, flax, cotton and wool, and the hemp fiber is irregular triangle, hexagon, oblate, oval and the like. The middle cavity is different from the shape, the molecular structure is multi-edge, loose and has spiral lines, so that the hemp fiber has good dissipation effect on sound waves and light waves, can block the radiation of strong ultraviolet light without special arrangement, and avoids electrostatic accumulation. Hemp is a poor conductor, has a higher electrical breakdown resistance of about 30% -90% than cotton fiber, and is a good insulating material. Because of the excellent moisture absorption of hemp fiber, the moisture content of hemp product exposed in air is about 12%, and the moisture content of hemp product exposed in air is 30% when the humidity of air is 95%, and the hand feeling is not wet. Therefore, the hemp fiber can easily avoid discharge and pilling caused by static accumulation and friction, has high heat resistance, can not change color at 370 ℃, and is suitable for various fabrics. The hemp fiber is hollow, contains oxygen at ordinary times, prevents anaerobic bacteria from surviving, obviously kills staphylococcus aureus, pseudomonas aeruginosa, white coccus, trichophyton gypseum, penicillium aspergillus and the like, does not use any chemical pesticide and insecticide, can prevent beriberi when being used as shoes, and is a standard green product.
Acrylic is the trade name of polyacrylonitrile in China, called "Orlon" and "kesenilon" abroad, and called Orlon by dupont in the united states. Second only to polyester and polyamide synthetic fiber varieties. It is soft, light, warm, corrosion resistant and light resistant wool-like short fiber. And has a density lower than wool. There is a name of artificial wool. It is lighter than wool by more than 10%, but the strength is more than 2 times greater. Acrylic fiber is not only not mildewed and damaged by worms, but also has 1 time greater resistance to sunlight than wool and 10 times greater resistance to sunlight than cotton. Therefore, it is especially suitable for making tent, gun coat, hood, curtain and other outdoor fabrics.
Cotton is one of the most important crops in the world, and has large yield, low production cost and lower price of cotton products. The cotton fiber can be made into fabrics with various specifications from light and transparent voile to thick canvas and thick velveteen, and is suitable for making various clothes, furniture and industrial fabrics. Cotton fabric is fast and wear resistant, can be washed and ironed at high temperature, and cotton fabric is comfortable to wear due to rapid moisture absorption and removal. If good heat retention is required, the surface of the fabric can be napped through napping finishing. Through other finishing procedures, the cotton fabric can be prevented from fouling, water and mildew; the crease resistance of the fabric is improved, so that the cotton fabric is less ironed and even does not need to be ironed; the shrinkage of the fabric during washing is reduced, so that the shrinkage rate is not more than 1%.
The main technological process of the existing blended spinning technology of cotton, hemp and acrylic fibers is that two kinds of fibers are respectively subjected to premixing and opening picking, carding and carding, drawing and mixing, and then are subjected to post-processing procedures of roving, spinning, spooling and the like to form yarn. The biggest problem of the spinning method cannot effectively solve the problems that the mass production of the hemp medicament in the normal cotton spinning under the environment with the humidity of over 80 percent and the knot problem cannot be effectively solved, and the technical problem of knot is always an important subject of the cotton spinning.
Disclosure of Invention
The invention aims to provide a preparation method of cotton hemp orlon blended yarn.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a preparation method of cotton hemp orlon blended yarn comprises the following steps:
(1) hemp opening: hemp fibers enter an opener for treatment;
(2) hemp pretreatment: carrying out moisture regain modification treatment on the hemp fibers;
(3) preparing raw strips of the hemp acrylic fiber for primary knot removal: uniformly mixing the hemp fibers and the acrylic fiber plate, opening and carding to prepare raw strips, and performing primary nep removal;
(4) preparing cotton slivers: making cotton fiber into cotton slivers;
(5) preparing raw strips of hemp acrylic fiber for secondary knot removal: passing the premixed raw sliver of hemp fiber and acrylic fiber through a shredding machine, shredding the sliver, re-coiling, opening, picking, carding, and removing neps for the second time to obtain a secondary mixed raw sliver;
(6) and (3) head combination: and (3) pressing the secondary mixed raw sliver and the cotton raw sliver into a mixture of 4: 2, performing head combination after matching;
(7) di-and-end-of-the-two: leading the head drawing obtained after head combination to pass through a second combination and a last combination to be uniformly mixed, wherein the drafting multiple of the second combination is 1.56, the drafting multiple of the last combination is 1.35, and the quantitative setting is 12g/5m, so that the last drawing is obtained;
(8) and (3) roving forming: carrying out roving forming on the final drawing with the back draft multiple of 1.28 and the set quantitative of 2.5g/10 m;
(9) spun yarn forming: adopting compact siro spinning, setting the back drawing multiple to be 1.25, and carrying out spun yarn forming;
(10) and finally, forming yarn by using an automatic winder to remove yarn defects and form a bobbin.
In the step (1), the rotating speed of a beater of the opener is 600 revolutions per minute.
The step (2) is specifically as follows: mixing the crude oil, the antistatic agent and warm water to form a moisture regain modified solution, uniformly adding the moisture regain modified solution into the hemp fiber for moisture regain modification, supplementing the warm water to enable the moisture regain of the hemp fiber to reach 24%, and standing for 24 hours; the dosage of each component in the moisture-regaining modification liquid is as follows according to 100kg hemp fiber: 0.8kg of wool oil, 0.2 kg of antistatic agent and 11 kg of warm water; the warm water has a temperature of 40-45 deg.C.
The step (3) is specifically as follows: weighing the hemp fibers and the acrylic fibers in a weight ratio of 25:75, and mixing the hemp fibers and the acrylic fibers in a disc manner, wherein the disc mixing is to place the hemp fibers and the acrylic fibers on a disc of a disc plucker and grab the hemp fibers and the acrylic fibers by using a grab of the plucker; then, the hemp knots in the fibers are removed by adopting a small porcupine beater and a parallel beater on a porcupine type mixed opener; then, a comb beater is adopted in the opener to continuously open and remove the neps, the linear speed of the angle nail curtain is 125-130 m/min, the rotating speed of the cotton beater is 160 r/min, and the distance between the cotton beater and the surface of the angle nail curtain is not more than 40 mm; the transmission speed of the flat curtain is 0.75 m/min to 1.5 m/min; the surface spacing between the cotton pressing curtain and the angle nail curtain is 15-20mm, and the coiling quantity is 400 g/m; setting the rotating speed of the licker-in roller at 750 revolutions per minute, setting the rotating speed of the cylinder at 300 revolutions per minute, controlling the ration of the raw strips at 18g/5m, and controlling the strip discharging speed at 90 m/min.
The step (4) is specifically as follows: opening and picking cotton fiber pure spinning yarns, wherein the ration of a lap is 350g/m, then carding by a carding machine, the distance between carding cover plates is 8-10 English silk, the rotating speed of a licker-in is set to 750 revolutions per minute, the rotating speed of a cylinder is set to 300 revolutions per minute, the ration of raw slivers is controlled to be 18g/5m, and the sliver discharging speed is controlled to be 90 m/min.
Setting the opening and picking carding parameters as follows: the beater speed of the disc plucker is 900 r/min, and the mixing and opening machine: the transmission speed of the flat curtain is 0.12m/min, the transmission speed of the inclined curtain is 150m/min, the parallel beater rotates at 850 rpm, and the small porcupine beater rotates at 550 rpm; a cotton slitting machine: the porcupine beater rotates for 600 revolutions per minute; vibrating the cotton box: the angle nail curtain is 50 m/min; a lap former: the comprehensive beater rotates at 950 rpm and the fan rotates at 1100 rpm; cylinder 2030 1550, cylinder speed 330/min, doffer 4030 1890, licker-in speed 750 rpm.
Setting parameters in the step (6) as follows: the distance between the front regions of the rollers is 10cm, the distance between the rear regions is 20cm, the rear drawing multiple is 1.75, and the quantitative control is 16g/5 m.
Setting parameters in the step (7) as follows: the distance between the front area and the rear area of the roller in the second roller pair is respectively 9cm and 20cm 6; the distance between the front and back regions of the roller in the last combination is 9cm and 19cm respectively.
Setting parameters in the step (8) as follows: the distance between the front area, the middle area and the rear area of the roller is respectively 12cm, 30cm and 38cm, the rear drawing multiple is 1.28, the quantitative rate is 2.5g/10m, the forming radial density is adjusted to be 4.2 circles/cm, the axial density is 25 layers/10 cm, the yarn forming angle is 30 degrees, and the roving strip is less than 3.5 g/m.
Setting parameters in the step (9) as follows: the distance between the front area and the back area of the roller is respectively 19cm and 40cm, the jaw is 2.5mm, the mesh ring is 120 meshes, and the air pressure is 3000 pa.
The invention has the beneficial effects that:
1. the yarn forming knot is low, and the problems of hemp variety knot and cloth cover hole are fully solved.
2. After part of hemp acrylic fiber is mixed in the plate, the problems that part of hemp acrylic fiber with different specifications is difficult to spin, the adaptability to temperature and humidity is greatly enhanced, and the problems of sticking, breaking, winding a roller by a winding roller and the like are solved.
3. The blending ratio can be strictly controlled, the hemp fibers are uniformly distributed in the yarn, and the problems of uneven distribution of dyed patterns and hemp fibers after single dyeing of the cloth cover are solved.
Detailed Description
The technical solution of the present invention will be further specifically described below by way of specific examples.
In the present invention, the raw materials and equipment used are commercially available or commonly used in the art, unless otherwise specified. The methods in the following examples are conventional in the art unless otherwise specified.
Example (b):
a preparation method of cotton hemp orlon blended yarn comprises the following steps:
(1) hemp opening: hemp fiber enters an opener for treatment, and the rotating speed of a beater of the opener is 600 revolutions per minute.
(2) Hemp pretreatment: carrying out moisture regain modification treatment on hemp fibers, which specifically comprises the following steps: mixing the crude oil, an antistatic agent (commercially available) and warm water to form a moisture regain modified solution, uniformly adding the moisture regain modified solution into the hemp fiber for moisture regain modification, supplementing the warm water to ensure that the moisture regain of the hemp fiber reaches 24%, and standing for 24 hours; the dosage of each component in the moisture-regaining modification liquid is as follows according to 100kg hemp fiber: 0.8kg of wool oil, 0.2 kg of antistatic agent and 11 kg of warm water; the warm water has a temperature of 40-45 deg.C.
(3) Preparing raw strips of the hemp acrylic fiber for primary knot removal: uniformly mixing the hemp fibers and the acrylic fiber plate, opening and carding to prepare raw strips, and performing primary nep removal; the method specifically comprises the following steps: weighing the hemp fibers and the acrylic fibers in a weight ratio of 25:75, and mixing the hemp fibers and the acrylic fibers in a disc manner, wherein the disc mixing is to place the hemp fibers and the acrylic fibers on a disc of a disc plucker and grab the hemp fibers and the acrylic fibers by using a grab of the plucker; then, the hemp knots in the fibers are removed by adopting a small porcupine beater and a parallel beater on a porcupine type mixed opener; then, a comb beater is adopted in the opener to continuously open and remove the neps, the linear speed of the angle nail curtain is 125-130 m/min, the rotating speed of the cotton beater is 160 r/min, and the distance between the cotton beater and the surface of the angle nail curtain is not more than 40 mm; the transmission speed of the flat curtain is 0.75 m/min to 1.5 m/min; the surface space between the cotton pressing curtain and the nail curtain is 15-20mm, the nail curtain is not allowed to have bent needles and missing needles, and all curtains are required to be tightened. The space and the expansion degree of the left side and the right side of the curtain are as consistent as possible, and the coiling ration is 400 g/m; setting the rotating speed of a licker-in roller at 750 revolutions per minute, setting the rotating speed of a cylinder at 300 revolutions per minute, replacing a carding plate at the rear part with a small mesh bottom, simultaneously reducing the outlet of the small mesh bottom by 2cm, controlling the diameter of a cover plate belt pulley to be 350mm, controlling the ration of raw strips to be 18g/5m, and controlling the strip discharging speed to be 90 m/min.
(4) Preparing cotton slivers: opening and picking cotton fiber pure spinning yarns, wherein the ration of a cotton roll is 350g/m, then carding by a carding machine, the spacing of carding cover plates is 8-10 English silk, the rotating speed of a licker-in is set to 750 revolutions per minute, the rotating speed of a cylinder is set to 300 revolutions per minute, the carding plate at the rear part is replaced by a small mesh under-screen, meanwhile, the outlet of the small mesh under-screen is reduced by 2cm, the diameter of a cover plate belt plate is 350mm, the ration of raw slivers is controlled to be 18g/5m, and the sliver discharging speed is controlled to be 90 m/min.
(5) Preparing raw strips of hemp acrylic fiber for secondary knot removal: passing the premixed raw sliver of hemp fiber and acrylic fiber through a shredding machine, shredding the sliver, re-coiling, opening, picking, carding, and removing neps for the second time to obtain a secondary mixed raw sliver; the opening and picking cotton carding parameters are set as follows: the beater speed of the disc plucker is 900 r/min, and the mixing and opening machine: the transmission speed of the flat curtain is 0.12m/min, the transmission speed of the inclined curtain is 150m/min, the parallel beater rotates at 850 rpm, and the small porcupine beater rotates at 550 rpm; a cotton slitting machine: the porcupine beater rotates for 600 revolutions per minute; vibrating the cotton box: the angle nail curtain is 50 m/min; a lap former: the comprehensive beater rotates at 950 rpm and the fan rotates at 1100 rpm; cylinder 2030 1550, cylinder speed 330/min, doffer 4030 1890, licker-in speed 750 rpm.
(6) And (3) head combination: and (3) pressing the secondary mixed raw sliver and the cotton raw sliver into a mixture of 4: 2, performing head combination after matching; the parameters are set as follows: the distance between the front regions of the rollers is 10cm, the distance between the rear regions is 20cm, the rear drawing multiple is 1.75, and the quantitative control is 16g/5 m.
(7) Di-and-end-of-the-two: leading the head drawing obtained after head combination to pass through a second combination and a last combination to be uniformly mixed, wherein the drafting multiple of the second combination is 1.56, the drafting multiple of the last combination is 1.35, and the quantitative setting is 12g/5m, so that the last drawing is obtained; the parameters are set as follows: the distance between the front area and the rear area of the roller in the second roller pair is respectively 9cm and 20cm 6; the distance between the front and back regions of the roller in the last combination is 9cm and 19cm respectively.
(8) And (3) roving forming: carrying out roving forming on the final drawing with the back draft multiple of 1.28 and the set quantitative of 2.5g/10 m; the roving forming parameters are set as follows: the distance between the front area, the middle area and the rear area of the roller is respectively 12cm, 30cm and 38cm, the rear drawing multiple is 1.28, the quantitative rate is 2.5g/10m, the forming radial density is adjusted to be 4.2 circles/cm, the axial density is 25 layers/10 cm, the yarn forming angle is 30 degrees, and the roving strip is less than 3.5 g/m.
(9) Spun yarn forming: adopting compact siro spinning, feeding by using double thick yarns, setting the back draft multiple to be 1.25, and carrying out spun yarn forming; the spun yarn forming parameters are as follows: the distance between the front area and the back area of the roller is respectively 19cm and 40cm, the jaw is 2.5mm, the mesh ring is 120 meshes, and the air pressure is 3000 pa.
(10) And finally, forming yarn by using an automatic winder to remove yarn defects and form a bobbin.
The above-described embodiments are only preferred embodiments of the present invention, and are not intended to limit the present invention in any way, and other variations and modifications may be made without departing from the spirit of the invention as set forth in the claims.
Claims (10)
1. The preparation method of the cotton hemp orlon blended yarn is characterized by comprising the following steps:
(1) hemp opening: hemp fibers enter an opener for treatment;
(2) hemp pretreatment: carrying out moisture regain modification treatment on the hemp fibers;
(3) preparing raw strips of the hemp acrylic fiber for primary knot removal: uniformly mixing the hemp fibers and the acrylic fiber plate, opening and carding to prepare raw strips, and performing primary nep removal;
(4) preparing cotton slivers: making cotton fiber into cotton slivers;
(5) preparing raw strips of hemp acrylic fiber for secondary knot removal: passing the premixed raw sliver of hemp fiber and acrylic fiber through a shredding machine, shredding the sliver, re-coiling, opening, picking, carding, and removing neps for the second time to obtain a secondary mixed raw sliver;
(6) and (3) head combination: and (3) pressing the secondary mixed raw sliver and the cotton raw sliver into a mixture of 4: 2, performing head combination after matching;
(7) di-and-end-of-the-two: leading the head drawing obtained after head combination to pass through a second combination and a last combination to be uniformly mixed, wherein the drafting multiple of the second combination is 1.56, the drafting multiple of the last combination is 1.35, and the quantitative setting is 12g/5m, so that the last drawing is obtained;
(8) and (3) roving forming: carrying out roving forming on the final drawing with the back draft multiple of 1.28 and the set quantitative of 2.5g/10 m;
(9) spun yarn forming: adopting compact siro spinning, setting the back drawing multiple to be 1.25, and carrying out spun yarn forming;
(10) and finally, forming yarn by using an automatic winder to remove yarn defects and form a bobbin.
2. The method for preparing the cotton hemp orlon blended yarn according to claim 1, characterized in that: in the step (1), the rotating speed of a beater of the opener is 600 revolutions per minute.
3. The method for preparing the cotton hemp orlon blended yarn according to claim 1, characterized in that: the step (2) is specifically as follows: mixing the crude oil, the antistatic agent and warm water to form a moisture regain modified solution, uniformly adding the moisture regain modified solution into the hemp fiber for moisture regain modification, supplementing the warm water to enable the moisture regain of the hemp fiber to reach 24%, and standing for 24 hours; the dosage of each component in the moisture-regaining modification liquid is as follows according to 100kg hemp fiber: 0.8kg of wool oil, 0.2 kg of antistatic agent and 11 kg of warm water; the warm water has a temperature of 40-45 deg.C.
4. The method for preparing the cotton hemp orlon blended yarn according to claim 1, characterized in that: the step (3) is specifically as follows: weighing the hemp fibers and the acrylic fibers in a weight ratio of 25:75, and mixing the hemp fibers and the acrylic fibers in a disc manner, wherein the disc mixing is to place the hemp fibers and the acrylic fibers on a disc of a disc plucker and grab the hemp fibers and the acrylic fibers by using a grab of the plucker; then, the hemp knots in the fibers are removed by adopting a small porcupine beater and a parallel beater on a porcupine type mixed opener; then, a comb beater is adopted in the opener to continuously open and remove the neps, the linear speed of the angle nail curtain is 125-130 m/min, the rotating speed of the cotton beater is 160 r/min, and the distance between the cotton beater and the surface of the angle nail curtain is not more than 40 mm; the transmission speed of the flat curtain is 0.75 m/min to 1.5 m/min; the surface spacing between the cotton pressing curtain and the angle nail curtain is 15-20mm, and the coiling quantity is 400 g/m; setting the rotating speed of the licker-in roller at 750 revolutions per minute, setting the rotating speed of the cylinder at 300 revolutions per minute, controlling the ration of the raw strips at 18g/5m, and controlling the strip discharging speed at 90 m/min.
5. The method for preparing the cotton hemp orlon blended yarn according to claim 1, characterized in that: the step (4) is specifically as follows: opening and picking cotton fiber pure spinning yarns, wherein the ration of a lap is 350g/m, then carding by a carding machine, the distance between carding cover plates is 8-10 English silk, the rotating speed of a licker-in is set to 750 revolutions per minute, the rotating speed of a cylinder is set to 300 revolutions per minute, the ration of raw slivers is controlled to be 18g/5m, and the sliver discharging speed is controlled to be 90 m/min.
6. The method for preparing the cotton hemp orlon blended yarn according to claim 1, characterized in that: setting the opening and picking carding parameters as follows: the beater speed of the disc plucker is 900 r/min, and the mixing and opening machine: the transmission speed of the flat curtain is 0.12m/min, the transmission speed of the inclined curtain is 150m/min, the parallel beater rotates at 850 rpm, and the small porcupine beater rotates at 550 rpm; a cotton slitting machine: the porcupine beater rotates for 600 revolutions per minute; vibrating the cotton box: the angle nail curtain is 50 m/min; a lap former: the comprehensive beater rotates at 950 rpm and the fan rotates at 1100 rpm; cylinder 2030 1550, cylinder speed 330/min, doffer 4030 1890, licker-in speed 750 rpm.
7. The method for preparing the cotton hemp orlon blended yarn according to claim 1, characterized in that: setting parameters in the step (6) as follows: the distance between the front regions of the rollers is 10cm, the distance between the rear regions is 20cm, the rear drawing multiple is 1.75, and the quantitative control is 16g/5 m.
8. The method for preparing the cotton hemp orlon blended yarn according to claim 1, characterized in that: setting parameters in the step (7) as follows: the distance between the front area and the rear area of the roller in the second roller pair is respectively 9cm and 20cm 6; the distance between the front and back regions of the roller in the last combination is 9cm and 19cm respectively.
9. The method for preparing the cotton hemp orlon blended yarn according to claim 1, characterized in that: setting parameters in the step (8) as follows: the distance between the front area, the middle area and the rear area of the roller is respectively 12cm, 30cm and 38cm, the rear drawing multiple is 1.28, the quantitative rate is 2.5g/10m, the forming radial density is adjusted to be 4.2 circles/cm, the axial density is 25 layers/10 cm, the yarn forming angle is 30 degrees, and the roving strip is less than 3.5 g/m.
10. The method for preparing the cotton hemp orlon blended yarn according to claim 1, characterized in that: setting parameters in the step (9) as follows: the distance between the front area and the back area of the roller is respectively 19cm and 40cm, the jaw is 2.5mm, the mesh ring is 120 meshes, and the air pressure is 3000 pa.
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| CN105506804A (en) * | 2015-11-23 | 2016-04-20 | 绍兴华通色纺有限公司 | Production method for combed cotton hemp mulberry silk blending colored spun yarn |
| CN107338527A (en) * | 2016-08-25 | 2017-11-10 | 桐乡守敬应用技术研究院有限公司 | The worsted blending yarn of china-hemp fibers half |
| CN106337225A (en) * | 2016-09-18 | 2017-01-18 | 义乌宏晖纺织有限公司 | Preparation method of bamboo charcoal fiber blended yarns |
| CN106757617A (en) * | 2017-03-07 | 2017-05-31 | 江南大学 | A kind of production method of crotalaria sp/flax/Modal mixed yarn |
| CN109355744A (en) * | 2018-09-19 | 2019-02-19 | 武汉汉麻生物科技有限公司 | A kind of close SEILE textile spinning process of fiber crops formula |
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