CN103643364B - A kind of high low distributes cotton/cotton compact spinning cladded yarn and spinning method thereof - Google Patents

Abstract

The invention discloses a high-count and low-allocation cotton/cotton compact spinning core-spun yarn and its spinning method. The raw materials are mixed with American cotton with a weight percentage of 25% to 30% and Xinjiang fine cotton with a weight percentage of 70% to 75%. It is spun into 200 ^S low-profile cotton core yarn and covered with 200 ^S low-profile cotton yarn. ^A spinning method of high-count and low-allocation cotton/cotton compact core-spun yarn, which adopts the grid ring type compact-spun core-spun yarn ^spinning technology. With cotton. The spinning process includes the following steps: (1) opening and cleaning process; (2) carding process; (3) combing process; (4) drawing process; (5) roving process; (6) spinning process. The above-mentioned process adopts the technology of grid-shaped compact spinning core-spun yarn, and uses low-grade cotton with low raw material grade to produce super-high-count 200 ^S low-mix cotton compact-spun yarn, which is used as the core yarn. The product has good hand feeling, Good air permeability, strong comfort and so on.

Description

A high-count and low-allocation cotton/cotton compact spun core-spun yarn and spinning method thereof

technical field

The invention relates to the new technology field of ring spinning, in particular to a high-count and low-allocation cotton/cotton compact spun core-spun yarn and a spinning method thereof.

Background technique

With the continuous improvement of people's material living standards and the change of consumption concept, clothing made of high-quality and comfortable natural textiles is becoming more and more popular. Such a change makes pure cotton high-count yarn fabrics more and more popular. It also provides a certain market demand for high-count compact spinning core-spun yarn. At present, in the core-spun yarn production process of compact spinning, chemical fiber filaments are generally used as core yarns to form short fibers, and the production cost is relatively high. However, it has not yet been seen that ultra-high-count cotton yarns are used as core yarns to produce core-spun yarn products. Similar reports. Aiming at this, the present invention adopts a high-count and low-allocation cotton/cotton compact spun core-spun yarn produced on an ordinary compact spinning frame, and provides a corresponding spinning method.

Contents of the invention

The object of the present invention is to provide a high-count, low-allocation cotton/cotton compact spun core-spun yarn and a production method thereof, and produce 100 ^S low-allocation cotton/cotton compact spun core-spun yarn products on the basis of compact spinning. This kind of core-spun yarn uses 200 ^S low-allocation cotton compact yarn as the yarn core of the core-spun yarn instead of traditional chemical fiber filaments. Cotton/cotton compact corespun yarn. The entire core-spun yarn is made of cotton fiber, and it is low-grade low-allocation cotton, which not only greatly broadens the application range of low-allocation cotton materials in high-count yarns, but also makes the yarn core feel soft and delicate, and at the same time provide The production practice of ultra-high-count compact spinning with low cotton content, especially compact core-spun yarn, has laid a solid foundation and greatly improved the utilization rate of cotton-type short fibers.

In order to achieve the above object, the present invention adopts following technical scheme:

A high-count and low-allocation cotton/cotton compact spun core-spun yarn is characterized in that the raw cotton is mixed with 25% to 30% American cotton and 70% to 75% Xinjiang fine-staple cotton, and spun 200 ^S low-profile cotton core yarn, outsourced with 200 ^S low-profile cotton yarn.

In order to realize the spinning of high-count and low-allocation cotton/cotton core-spun yarn, the steps are as follows:

(1) Cotton cleaning process: In the cotton cleaning process, the process principle of "more loosening, less beating, more combing and less shedding" is adopted. Single axial flow porcupine opener, comb beater, low speed control of comb beater, speed 350-420r/min, distance between feeding roller and beater 8-10mm, distance between dust bar and beater The distance between 10mm-14mm can achieve the effect of more recovery and less exclusion. The general configuration of the comprehensive beater speed of the lapping machine should be based on the principle of low speed, at 780-820r/min, so as not to damage the fiber if the speed is too fast. Cotton laps are made of light weight, short and fixed length. The weight of the laps is 320-350g/m, and the length of the laps is 25-30m. Pure cotton roving strips are placed between the cotton layers for isolation to prevent lap sticking.

(2) Carding process: The carding process adopts the technological principle of "light weight, low speed, large gauge, small tension, fast transfer, and less fiber damage". Reduce the speed of the licker-in roller and the cylinder, increase the linear speed ratio of the cylinder and the licker-in roller, and appropriately increase the distance between the cylinder and the cover. Through optimization, the 5-point distance between the cylinder and the cover is slightly larger than the entrance. , the remaining 4-point tight gauge process principle is conducive to increasing the carding area, and has obvious effects on reducing neps in card sliver and improving yarn evenness. Enlarge the gap between the licker-in roller and the small drain bottom, the inlet gap between the licker-in roller and the small drain bottom is 8.0mm, and the outlet gap is 0.6mm. Raise the cotton feeding plate and clean the channel regularly to ensure smooth sliver production. The cylinder speed is 350-400r/min, the cover plate speed is 75-90m/min, the licker-in roller speed is 800-900r/min, the doffer speed is 28-32r/min, the cylinder-cover plate five-point distance is 7mm, 6mm, 6mm, 6mm, 7mm, cylinder-licker-in roller gauge 7mm, cylinder-doffer gauge 5mm, quantitative between 14.5-18.0g/5m;

(3) Combing process: the number of pre-drawing and merging is 6, 24-28 pre-drawing and merging are used for sliver and coiling, low speed is used for combing, and the speed is controlled at 280-320 nipper times/min. Cylinder camber angle is 115°, roller diameter is 35mm×27mm×27mm×27mm, sliver delivery speed is 135-170m/min, backward feeding method is adopted, cotton feeding length is 4.3mm, to achieve noil rate in combing process Controlled at 19% to 21%, combed slivers quantitatively at 11.4-15.6g/5m.

(4) Drawing process: Based on the process principle of "big gauge, heavy pressure, low speed, and smooth drafting", it focuses on improving the fiber separation and straightening effect. When combining the combed slivers, the speed is controlled at 200-230m/min, 6-8 combed slivers are combined, after two combining processes, the draft ratio is 6.5-7.8 times, and the design weight is 10.5-12.0g /5m, roller spacing 10mm×16mm, roller center distance 50mm×51mm, roller pressurization 300N×360N×360N.

(5) Roving process: The process configuration of the roving process should be based on further improving the parallel separation of fibers, improving evenness, controlling elongation, and preventing deterioration of evenness. The yarn spun in the spinning process is a super-high-count yarn. In order to reduce the drafting burden of the spinning machine, the weight of the roving should be light and the speed of the machine and spindle should be appropriately reduced. elongation to reduce accidental elongation. The roving gauge should be relatively large to ensure smooth drafting. In order to improve the evenness of the roving, the draft ratio in the rear area should be controlled too small. Main process parameters: spindle speed is 600-720r/min, roving weight is 3.0-3.4g/10m, roving twist coefficient is controlled at 89-102, roller gauge is 9mm×24mm×32mm, roller diameter is 28mm×28mm×25mm× 28mm, the draft ratio in the rear area is 1.13 times, and the total draft ratio is 6.5-8.0 times;

(6) Spinning process:

Spinning process 1: completed on the EJM128-K ring spinning frame, modified by the Suessen grid ring compact spinning, the drafting form adopts three-roller double apron drafting, the spun yarn density is 200 ^S (2.9tex), Spinning twist coefficient is 410-460, spindle speed is 3600-4800r/min, jaw gap is 2.0mm, draft ratio in rear area is controlled at 1.05-1.3 times, elastic upper pin with rear area double pressure rod, YJ2-142H Type cradle, steel ring and traveler from Bracker, Switzerland, steel ring diameter is 35mm, traveler model C1ELUdr28/0, compact spinning mesh ring mesh is 3600 mesh, rubber roller diameter is 30mm×25mm×30mm×42mm, roller The diameter is 25mm×25mm×25mm.

Spinning process 2: A core yarn device is installed on the spinning frame after compact spinning, the 200 ^S compact spun yarn spun in spinning process 1 is used as the core yarn, and low-allocation cotton yarn is spun according to the 200 ^S drafting process as the outsourcing The fiber and core yarn pre-drawing ratio is controlled at 1.05-1.15, and the steel ring and traveler from Bracker, Switzerland are used. The diameter of the steel ring is 35mm, the traveler model is C1ELUdr18/0, and the spindle speed is 4000-5000r/min.

Advantage and beneficial effect of the present invention are:

This kind of high-count compact spun core-spun yarn still chooses short-length low-allocation cotton as the outer fiber. Cotton fibers are used in the entire core-spun yarn spinning process, and it is low-grade low-allocation cotton, which greatly expands the low-allocation cotton. The application range of cotton materials in high-count yarns has improved the utilization rate of cotton-type short fibers, and the developed core-spun yarn products are soft and delicate, opening up a new field of "cotton-covered cotton" core-spun yarn production technology.

Detailed ways

The present invention will be further described below in combination with specific embodiments. It should be understood that these examples are only used to illustrate the present invention and are not intended to limit the scope of the present invention. In addition, it should be understood that after reading the teachings of the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the appended claims of the present application.

A high-count and low-allocation cotton/cotton compact spun core-spun yarn, the raw cotton is mixed with 25%-30% American cotton and 70%-75% Xinjiang fine-staple cotton, and spun into 200 ^S Low-profile cotton core yarn, covered with 200 ^S low-profile cotton yarn.

In order to realize the spinning of high-count and low-allocation cotton/cotton core-spun yarn, the steps are as follows:

(1) Cotton opening and cleaning process: the speed of the carding needle beater is 380r/min, the distance between the cotton feeding roller and the beater is 8mm, and the distance between the dust bar and the beater is appropriately enlarged, so that more recycling and less elimination can be achieved. The comprehensive beater speed of the lapping machine is 790r/min, so as not to damage the fiber due to excessive speed. Cotton laps are made of light weight, short and fixed length. The weight of the lap is 325g/m, and the length of the lap is 26m.

(2) Carding process: The carding process adopts the technological principle of "light weight, low speed, large gauge, small tension, fast transfer, and less fiber damage". Cylinder speed 375r/min, flat speed 80m/min, licker-in speed 820r/min, doffer speed 29r/min, cylinder-flat five-point spacing 7mm, 6mm, 6mm, 6mm, 7mm, cylinder-ribbon Roller gauge 7mm, cylinder-doffer gauge 5mm, quantitative 15.0g/5m;

(3) Combing process: the number of pre-drawing and combining is 6, 24 pre-drawing and combining are used for sliver and coiling, low speed is used for combing, the speed is controlled at 285 nipper times/min, and cylinder arc surface is used Angle 115°, roller diameter 35mm×27mm×27mm×27mm, sliver delivery speed 145m/min, backward feeding method, feeding length 4.3mm, noil rate 19.5% in combing process, combed sliver quantitative 13.5g/5m.

(4) Drawing process: Based on the process principle of "big gauge, heavy pressure, low speed, and smooth drafting", it focuses on improving the fiber separation and straightening effect. When combed slivers are combined, the speed is 210m/min, 6 combed slivers are combined, after two combined processes, the draft ratio is 6.98 times, the design weight is 11.6g/5m, the roller gauge is 10mm×16mm, and the roller center The distance is 50mm×51mm.

(5) Roving process: main process parameters: spindle speed 665r/min, roving weight 3.0g/10m, roving twist coefficient 102, roller gauge 9mm×24mm×32mm, roller diameter 28mm×28mm×25mm×28mm, rear area The draft ratio is 1.13 times, and the total draft ratio is 7.73 times.

(6) Spinning process:

Spinning process 1: completed on the EJM128-K ring spinning frame, modified by the Suessen grid ring compact spinning, the drafting form adopts three-roller double apron drafting, the spun yarn density is 200 ^S (2.9tex), Spinning twist coefficient is 430, spindle speed is 4500r/min, jaw gap is 2.0mm, draft ratio in rear area is 1.13 times, total draft ratio is 103.4 times, elastic jaw upper pin with rear area double pressure rods, YJ2-142H type Cradle, steel ring and traveler from Bracker, Switzerland, steel ring diameter 35mm, traveler model C1ELUdr28/0, compact spinning grid mesh 3600 mesh/cm ² , rubber roller diameter 30mm×25mm×30mm×42mm , Roller diameter 25mm × 25mm × 25mm.

Spinning process 2: A core yarn device is installed on the spinning frame after compact spinning, the 200 ^S compact spun yarn spun in spinning process 1 is used as the core yarn, and low-allocation cotton yarn is spun according to the 200 ^S drafting process as the outsourcing Fiber, core yarn pre-drawing ratio is controlled at 1.09, steel ring and traveler from Bracker Company of Switzerland are used, the diameter of the steel ring is 35mm, the type of traveler is C1ELUdr18/0, and the spindle speed is 5000r/min.

A high-count and low-allocation cotton/cotton compact spun core-spun yarn, its yarn-forming properties are as follows:

Claims (1)

1. a kind of spinning method of high count and low allocation cotton/cotton compact spinning core-spun yarn, described core-spun yarn adopts the American cotton of 25%～30% by weight, the Xinjiang fine-staple cotton of 70%～75% to carry out Blending, spinning 200 ^S low-allocation cotton compact core yarn, outsourcing 200 ^S low-allocation cotton yarn sheath, and processing it into 100 ^S low-allocation cotton/cotton compact spun core-spun yarn through compact spinning core-spun yarn technology; including the following steps: (1) Opening and cleaning process: In the cotton cleaning process, the process principle of "more loosening and less beating, more combing and less shedding" is adopted; the single-axial flow porcupine opener is adopted, and the speed of the carding needle beater is controlled at a low level, and the speed is 350-420r/min The distance between the feeding roller and the beater is 8-10mm, and the distance between the dust bar and the beater is 10mm-14mm; the speed configuration of the comprehensive beater of the lap machine is based on low speed, which is 780-820r/min; Light weight, short and fixed length are adopted. The weight of the cotton lap is 320-350g/m, and the length of the cotton lap is 25-30m. (2) Carding process: The carding process adopts the technological principle of "light weight, low speed, large gauge, small tension, fast transfer, and less fiber damage"; reduce the speed of the licker-in roller and cylinder, increase the line speed ratio of the cylinder and licker-in roller and properly Increase the distance between the cylinder and the cover plate; enlarge the distance between the licker-in roller and the small drain bottom, the inlet distance between the licker-in roller and the small drain bottom is 8.0mm, the outlet distance is 0.6mm, raise the cotton feeding plate and carry out regular passage Clean for smooth stripping; cylinder speed 350-400r/min, cover plate speed 75-90m/min, licker-in roller speed 800-900r/min, doffer speed 28-32r/min, cylinder-cover plate five-point gauge 7mm, 6mm, 6mm, 6mm, 7mm, cylinder-licker-in roller gauge 7mm, cylinder-doffer gauge 5mm, quantitative between 14.5-18.0g/5m; (3) Combing process: The number of pre-drawing and merging is 6, 24-28 pre-drawing and merging are used for sliver winding, low speed is used for combing, the speed is controlled at 280-320 nipper times/min, and the cylinder arc angle is 115° , the roller diameter is 35mm×27mm×27mm×27mm×27mm, the sliver delivery speed is 135-170m/min, adopts the backward feeding method, the cotton feeding length is 4.3mm, and the noil rate in the combing process is controlled at 19%~21% , combed sliver quantitative in 11.4-15.6g/5m; (4) Drawing process: Based on the process principle of "big gauge, heavy pressure, low speed, and smooth drafting", it focuses on improving fiber separation and straightening effects; when combining combed sliver, the speed is controlled at 200-230m/min, and the combed sliver 6-8 strands are merged, after two merged processes, the draft ratio is 6.5-7.8 times, the design weight is between 10.5-12.0g/5m, the roller spacing is 10mm×16mm, the roller center distance is 50mm×51mm, the roller Pressure 300N×360N×360N; (5) Roving process: The main process parameters of the roving process: the spindle speed is 600-720r/min, the roving weight is 3.0-3.4g/10m, the roving twist coefficient is controlled at 89-102, the roller gauge is 9mm×24mm×32mm, the roller diameter is 28mm×28mm× 25mm×28mm, the draft ratio in the rear area is 1.13 times, and the total draft ratio is 6.5-8.0 times; (6) Spinning process: Spinning process 1: completed on the EJM128-K ring spinning frame, modified by the Suessen grid ring compact spinning, the drafting form adopts three-roller double apron drafting, the spun yarn density is 200 ^S (2.9tex), Spinning twist coefficient is 410-460, spindle speed is 3600-4800r/min, jaw gap is 2.0mm, draft ratio in rear area is controlled at 1.05-1.3 times, elastic upper pin with rear area double pressure rod, YJ2-142H Type cradle, steel ring and traveler from Bracker, Switzerland, steel ring diameter is 35mm, traveler model C1ELUdr28/0, compact spinning mesh ring mesh is 3600 mesh, rubber roller diameter is 30mm×25mm×30mm×42mm, roller Diameter 25mm×25mm×25mm; Spinning process 2: A core yarn device is installed on the spinning frame after compact spinning, the 200 ^S compact spun yarn spun in spinning process 1 is used as the core yarn, and low-allocation cotton yarn is spun according to the 200 ^S drafting process as the outsourcing The fiber and core yarn pre-drawing ratio is controlled at 1.05-1.15, and the steel ring and traveler from Bracker, Switzerland are used. The diameter of the steel ring is 35mm, the traveler model is C1ELUdr18/0, and the spindle speed is 4000-5000r/min.