阅读说明：本技术 一种细旦粘胶纯纺高支纱及其生产方法和用途 (Fine denier viscose pure spinning high count yarn and production method and application thereof ) 是由 隗燚瑢 李明烈 李孝明 叶小丽 何琴华 于 2019-10-24 设计创作，主要内容包括：本发明属于纺织技术领域,具体涉及一种细旦粘胶纯纺高支纱及其生产方法和用途。该生产方法以细旦粘胶纤维为原料,经过清花工序、梳棉工序、并条工序、粗纱工序、细纱工序、络筒工序得到紧密纺纱。本发明提供的生产方法中对各工序的参数均明确限定以使细旦粘胶纤维能够顺利纺出紧密纺纱。采用本发明生产出的纯纺高支纱可广泛用于针织和梭织高档面料,该面料光泽柔和细腻,吸湿透气,手感柔软,亲肤性好,色泽鲜艳,适合制作衬衣、床品等高档纺织品,在家纺领域和服装领域也有其独特的地位,广受欢迎。(The invention belongs to the technical field of spinning, and particularly relates to fine denier viscose pure-spinning high count yarn and a production method and application thereof. The production method takes fine denier viscose as raw material, and compact spun yarn is obtained through blowing process, cotton carding process, drawing process, roving process, spinning process and spooling process. The production method provided by the invention has definite limitation on parameters of each process so that the fine denier viscose can smoothly spin compact spun yarns. The pure spun high count yarn produced by the invention can be widely used for knitting and tatting high-grade fabrics, the fabrics have soft and exquisite luster, moisture absorption and air permeability, soft hand feeling, good skin-friendliness and bright color, are suitable for manufacturing high-grade textiles such as shirts, bedding and the like, have unique status in the field of home textiles and clothing, and are popular.)

1. The production method of the fine denier viscose pure-spun high count yarn is characterized in that fine denier viscose fiber is used as a raw material, and the high count yarn is obtained through a blowing process, a cotton carding process, a drawing process, a roving process, a spinning process and a spooling process.

2. The production method of the fine denier viscose pure-spun high count yarn according to claim 1, characterized by comprising the following specific steps:

(1) a blowing procedure: the fine denier viscose fiber is to be grabbed, the descending speed of a beater of a bale plucker is 3mm each time, the rotating speed is 900r/min-1000r/min, the speed of a rotary trolley is 2.5r/min-3.0r/min, the blade extends out of a rib for 3mm, and the space between the beater and a balance roller is 12 mm;

(2) cotton carding process: the speed of a cylinder is 250r/min-300r/min, the speed of a licker-in is 550r/min-600r/min, the speed of a doffer is 15r/min-25r/min, the speed of a cover plate is 140mm/min, the distance between the cylinder and the licker-in is 7 inches, the distance between a cotton feeding plate and the licker-in is 14 inches, the distance between the cylinder and the doffer is 4 inches, the distance between 5 points of the cylinder and the cover plate is 10 inches, 9 inches, 8 inches, 9 inches, the height of a dust removing knife is flat with a machine frame, the included angle between the back of the knife and the horizontal plane of the machine frame is 90 degrees, and the dry weight of cotton carding is 16.26 g/m;

(3) drawing: after three times of mixing, 7 pieces of the mixture are mixed, the dry weight ration is 14.8g/5 m, the roller gauge is 12mm multiplied by 20mm, the mechanical drafting is 7.53 times, and the back zone drafting is 1.66 times; combining 7 pieces of the two, wherein the dry weight ration is 14.2g/5 m, the roller gauge is 12mm multiplied by 20mm, the mechanical drafting is 7.15 times, and the back zone drafting is 1.4 times; combining 7 combined yarns, wherein the dry weight ration is 14g/5 m, the roller gauge is 12mm multiplied by 20mm, the mechanical drafting is 6.96 times, and the back zone drafting is 1.3 times;

(4) roving: the twist of the roving is 4.8 twists/10 cm, the roller gauge is 26mm multiplied by 37mm, the back zone drafting is 1.2 times, the jaw gauge is 7mm, the dry weight ration of the roving is 3.18 g/10m, the mechanical drafting is 7.7 times, the rotating speed of the front roller is 140r/min-150r/min, the wet weight is 3.5g/10m, the tex is 350tex, the twist coefficient is 90, the diameter of the front roller is 28mm, and the palm pressing winding number is 2 circles;

(5) spinning: the mechanical draft multiple is 57.7 times, the roller gauge is 19mm multiplied by 36mm, the draft multiple of the rear zone is 1.18 times, the jaw gauge is 3mm, the diameter of the front roller is 27mm, the rotating speed of the front roller is 122r/min, the twist is 152 twist/10 cm, and the twist coefficient is 390;

(6) a spooling process: electrical clearance parameters: neps N: 350%, short and thick S: 140% × 1.4cm, length and thickness L: 30% × 30cm, detail T: 35% x 30cm, producing a single yarn tight at R6.6tex.

3. The method for producing fine denier viscose pure spinning high count yarn according to claim 2, wherein the fine denier viscose fiber in the blowing process meets the following performance standards: the specific strength is 2.48-2.81CN/dtex, the elongation at break is 19.1-21.8%, the linear density is 1.0dtex, and the moisture regain is 9.81-11.74%.

4. The method for producing fine denier viscose rayon pure-spun high count yarn according to claim 2, wherein the fine denier viscose rayon is subjected to necessary moistening pretreatment before production, and the raw material is produced in 24 hours after being unpacked in an blowing round table.

5. The production method of the fine denier viscose pure spinning high count yarn according to claim 2, wherein the card clothing type in the cotton carding process is as follows: card clothing MCH32, cylinder clothing AC2030 x 01550, doffer clothing AD4030 x 01890, licker-in rack AT5610 x 06311.

6. The method for producing fine denier viscose pure-spun high count yarn according to claim 2, wherein the scutching process is additionally provided with a roving anti-curl device and the pressure of a lap roller is increased, and the drawing process adopts a self-leveling drawing frame.

7. The method for producing fine denier viscose pure-spun high count yarn according to claim 2, wherein the spinning process modifies and processes spinning equipment and special parts, and adds a blowing and sucking device to enhance cleaning.

8. The method for producing fine denier viscose rayon pure-spun high count yarn according to any one of claims 1 to 7, wherein the equipment used in the production process comprises an automatic plucker of A002C type, an automatic plucker of A036B porcupine opener, a double-hopper feeder of A092A type, a lapper of A076C type, a186 carding machine, a drawing frame of FA305 type, a drawing frame of D81 day gate, an FA454 roving machine, a DTM129 spinning machine and a 21C-S winder.

9. A fine denier viscose pure spun high count yarn made by the process of any one of claims 1 to 8.

10. Use of the fine denier viscose pure spun high count yarn of claim 9 for making shirts and bedding.

Technical Field

The invention belongs to the technical field of spinning, and particularly relates to fine denier viscose pure-spinning high count yarn and a production method and application thereof.

Background

With the development of economy, the transformation of consumption concept, the improvement of living standard and the continuous progress of science and technology, the textile market shows diversity and individuation. The requirements on the fabric are more emphasized, the fabric is environment-friendly, healthy, natural, comfortable and safe, and the requirements on raw materials are increasingly strict. The viscose fiber is a pure natural material, and the regenerated cellulose fiber meets the requirement of modern consumers on 'green'. In order to improve the comfort and hand feeling of the fabric, spinning high count yarn and weaving light and thin fabric become a development trend of home textile and clothing materials in recent years. The viscose fiber fabric has the advantages of softness, drapability, fineness, smoothness, elegant and dynamic feeling, moisture absorption, air permeability and the like, and meanwhile, the viscose fiber has three functional characteristics of humidity management function, excellent skin-friendly property and bacterium breeding inhibition, so that the viscose fiber is widely used. From pure spinning to blending, from knitting to weaving, from yarn-dyed weaving to printing and dyeing, from clothing to home textile, from outer clothing to inner clothing, and viscose are "all-round players" in the textile industry, and are also the most widely used fibers in the current novel cellulose fiber family.

The invention adopts fine denier viscose fiber pure spinning to produce high count compact spinning, the pure spun high count yarn produced by the invention can be widely used for knitting and tatting high-grade fabrics, the fabrics have soft hand feeling, moisture absorption and ventilation, good skin-friendly property and bright color, are suitable for manufacturing high-grade products in textiles such as shirts, bedding products and the like, have unique status in the field of home textile and clothing, and are popular.

However, the above fibers have the following disadvantages: the fine denier viscose fiber has smooth surface, poor cohesion, easy breaking during carding, easy generation of short fiber, difficult forming of cotton carding nets and the like. Because of the above disadvantages, it is not easy to obtain fine and high-quality high count yarn when spinning fine denier viscose fiber in the prior art.

Disclosure of Invention

Aiming at the defects of the prior art, the invention aims to solve the technical problem of providing the fine denier viscose pure spinning high count yarn and the production method and the application thereof, the fine denier viscose fiber pure spinning can be used for obtaining the fine and high count yarn with excellent quality by the method, and the yarn is a single yarn for high-grade textile fabrics, which has the advantages of moisture absorption, ventilation, soft hand feeling, good skin-friendly property, bright color and the like.

The technical scheme for solving the technical problems is as follows: the high count yarn is obtained by taking fine denier viscose as a raw material and performing blowing, cotton carding, drawing, roving, spinning and spooling.

Preferably, the method comprises the following specific steps:

(1) a blowing procedure: the fine denier viscose fiber is to be grabbed, the descending speed of a beater of a bale plucker is 3mm each time, the rotating speed is 900r/min-1000r/min, the speed of a rotary trolley is 2.5r/min-3.0r/min, the blade extends out of a rib for 3mm, and the space between the beater and a balance roller is 12 mm;

(2) cotton carding process: the speed of a cylinder is 250r/min-300r/min, the speed of a licker-in is 550r/min-600r/min, the speed of a doffer is 15r/min-25r/min, the speed of a cover plate is 140mm/min, the distance between the cylinder and the licker-in is 7 inches, the distance between a cotton feeding plate and the licker-in is 14 inches, the distance between the cylinder and the doffer is 4 inches, the distance between 5 points of the cylinder and the cover plate is 10 inches, 9 inches, 8 inches, 9 inches, the height of a dust removing knife is flat with a machine frame, the included angle between the back of the knife and the horizontal plane of the machine frame is 90 degrees, and the dry weight of cotton carding is 16.26 g/m;

(3) drawing: after three times of mixing, 7 pieces of the mixture are mixed, the dry weight ration is 14.8g/5 m, the roller gauge is 12mm multiplied by 20mm, the mechanical drafting is 7.53 times, and the back zone drafting is 1.66 times; combining 7 pieces of the two, wherein the dry weight ration is 14.2g/5 m, the roller gauge is 12mm multiplied by 20mm, the mechanical drafting is 7.15 times, and the back zone drafting is 1.4 times; combining 7 combined yarns, wherein the dry weight ration is 14g/5 m, the roller gauge is 12mm multiplied by 20mm, the mechanical drafting is 6.96 times, and the back zone drafting is 1.3 times;

(4) roving: the twist of the roving is 4.8 twists/10 cm, the roller gauge is 26mm multiplied by 37mm, the back zone drafting is 1.2 times, the jaw gauge is 7mm, the dry weight ration of the roving is 3.18 g/10m, the mechanical drafting is 7.7 times, the rotating speed of the front roller is 140r/min-150r/min, the wet weight is 3.5g/10m, the tex is 350tex, the twist coefficient is 90, the diameter of the front roller is 28mm, and the palm pressing winding number is 2 circles;

(5) spinning: the mechanical draft multiple is 57.7 times, the roller gauge is 19mm multiplied by 36mm, the draft multiple of the rear zone is 1.18 times, the jaw gauge is 3mm, the diameter of the front roller is 27mm, the rotating speed of the front roller is 122r/min, the twist is 152 twist/10 cm, and the twist coefficient is 390;

(6) a spooling process: electrical clearance parameters: neps N: 350%, short and thick S: 140% × 1.4cm, length and thickness L: 30% × 30cm, detail T: 35% x 30cm, producing a single yarn tight at R6.6tex.

Preferably, the fine denier viscose fiber in the blowing process meets the following performance standards: the specific strength is 2.48-2.81CN/dtex, the elongation at break is 19.1-21.8%, the linear density is 1.0dtex, and the moisture regain is 9.81-11.74%.

Preferably, the fine denier viscose fiber is subjected to necessary moistening pretreatment before production, and the raw material is produced in advance for 24 hours after being unpacked in the blowing circular table.

Preferably, the card clothing model in the cotton carding process is as follows: card clothing MCH32, cylinder clothing AC2030 x 01550, doffer clothing AD4030 x 01890, licker-in rack AT5610 x 06311.

Preferably, the ring used in the spinning process is PG1/2-38, and the traveler is W321-30 #.

Preferably, the roving anti-sticking device and the lap roller pressurizing device are additionally arranged in the blowing process, and the auto-leveling drawing frame is adopted in the drawing process.

Preferably, the spinning process is used for transforming and processing spinning equipment and special parts, and a blowing and sucking device is additionally arranged to enhance cleaning.

Preferably, the equipment used in the production process comprises an automatic plucker of A002C type, an automatic plucker of A036B porcupine type, a double-hopper cotton feeder of A092A type, a lapper of A076C type, an A186 carding machine, a drawing frame of FA305 type, a drawing frame of D81 overhead door, an FA454 roving machine, a DTM129 spinning machine and a 21C-S bobbin winder.

The fine denier viscose pure spinning high count yarn is prepared by the production method.

The fine denier viscose pure spinning high count yarn is used for manufacturing shirts and bedding.

Compared with the prior art, the invention has the beneficial effects that:

(1) the production method provided by the invention produces single yarn through blowing, cotton carding, drawing, roving, spinning and spooling in sequence, and compared with the prior art, the production method has the following characteristics: the raw materials are subjected to necessary moistening pretreatment before production. Because the surface of the fine denier viscose fiber is smooth, the cohesive force is poor, and the carding is easy to break, the roving anti-sticking device and the pressure of the lap roller are added in the blowing process so as to enhance the cohesive force between the fibers and ensure that the lap can be smoothly formed. The process principle of short flow, low speed, more loosening, less beating and less dropping is adopted; the cotton carding process has the advantages of light weight, large gauge, low speed and small tension, protects the integrity of fibers to the maximum extent and reduces the generation of neps, and adopts a cotton collecting device to reduce the phenomenon of dropping a cotton web and ensure the unevenness of slivers. Because the cohesion force between the tencel fibers is poor, the cotton carding web is not easy to form, in order to solve the problem, special parts such as cotton carding card clothing and the like are specially treated and modified, the cotton carding process is optimized, and the quality of the cotton carding web is ensured; the drawing process is low in speed, and a self-leveling drawing frame is adopted, so that the improvement of the uneven weight of cotton slivers is guaranteed, and three-way blending is realized; the roving process has low quantification and low speed, and the twist factor is mastered slightly; the spinning process carries out modification and treatment on spinning equipment and special parts, and is additionally provided with a blowing and sucking device to strengthen cleaning, so that the quality of fine denier viscose high count yarn is ensured, and a larger back zone roller gauge, a smaller back zone drafting multiple and a smaller jaw gauge are adopted to increase the spinning twist coefficient appropriately; the spooling process has low speed, reduces the deterioration of the quality of the finished yarn, and avoids the increase of the neps and the hairiness of the finished yarn greatly. According to the process and the specific technological parameters provided by the invention, the fine denier viscose can be spun to obtain compact spun yarns with the count of 90, which cannot be realized in the prior art.

(2) The invention adopts 1.0dtex 38mm fine denier viscose fiber, the single yarn produced by the invention can be widely used for knitting and tatting high-grade fabrics, and the fabrics have soft hand feeling, moisture absorption and air permeability, good skin-friendly property and bright color, and are suitable for manufacturing high-grade products in textiles such as shirts, bedding products and the like.

Detailed Description

The principles and features of this invention are described below in conjunction with specific embodiments, which are set forth merely to illustrate the invention and are not intended to limit the scope of the invention.

In order to avoid redundancy, the raw materials and specific production equipment used in the following embodiments of the present invention are summarized as follows:

fine denier viscose fiber: the specific strength is 2.59CN/dtex, the elongation at break is 20.8 percent, the linear density is 1.0dtex, the length is 38mm, and the moisture regain is 10.74 percent;

the equipment that the production line adopted includes: the cotton machine comprises an A002C type automatic plucker, an A036B porcupine opener, an A092A type double-cotton-box cotton feeder, an A076C type lap former, an A186 carding machine, an FA305 type drawing frame, a D81 overhead door drawing frame, an FA454 roving frame, a DTM129 spinning frame and a 21C-S bobbin winder.