CN103334190A - Ultra-high-count pure cotton combing yarn and spinning technology of ultra-high-count pure cotton combing yarn - Google Patents

Abstract

The invention discloses an ultra-high-count pure cotton combed yarn and its spinning process. The raw cotton is 15% to 25% Egyptian cotton, 25% to 35% American cotton and 40% to 50% cotton Xinjiang long-staple cotton is blended and spun into 200-300S pure cotton yarn. The spinning process includes the following steps: (1) cleaning and carding process; (2) combing process; (3) drawing process; (4) roving process; (5) spinning process; (6) winding process. Through the above blending scheme, the raw cotton can have the advantages of fineness and maturity of Egyptian cotton, high strength of American cotton, no foreign fiber and long length of Xinjiang long-staple cotton, etc., and achieve the fiber quality of raw cotton in the production of ultra-high count yarn Requirements for performance indicators such as length, length CV value, micronaire value, fineness, strength, etc. The above process can realize the production of ultra-high count yarn under heavy weight roving, improve spinning efficiency, and ensure yarn quality at the same time.

Description

A kind of extra-high-count pure cotton combed yarn and its spinning process

the

technical field

The invention relates to an ultra-high-count pure cotton combed yarn and its spinning process. the

Background technique

At present, ring spinning, which realizes twisting through spindle rotation, is the most traditional spinning method, and it is also the most widely used spinning method in the market. The technology is very mature. Short new spinning technologies, such as rotor spinning, air-jet spinning, etc., especially air-jet spinning, have completely changed the twisting mechanism of ring spinning by using high-speed swirling airflow to make fiber bundles false-twisted and wrapped into yarns. The yarn method still cannot replace ring spinning in terms of raw material availability and overall yarn quality. It can be seen that the application number is: 201010520259.0; the title of the invention is: a heat-generating blended yarn and its spinning process. At present, ring spinning is still the most important method of spun yarn production. The production of high-quality spun yarn by improving the traditional ring spinning technology is currently the hottest topic in the textile industry. In particular, the current domestic mainstream ring spinning frames all adopt the three-roller two-zone drafting form, the drafting ratio is limited, the spinning efficiency is low, and it is impossible to realize the production of extra-high-count yarns under general quantitative or heavy quantitative roving. Aiming at this, the present invention uses an ultra-high-count pure cotton combed yarn produced on a super-large draft spinning frame including four-roller, four-apron, and three-zone drafting, and provides a corresponding spinning method. the

With the continuous increase of market competition and the gradual increase of investment in the structural adjustment of my country's textile industry, in order to improve the added value of products and market competitiveness, yarn varieties are gradually developing in the direction of high branching and differentiation. However, high-count yarns have fine yarn counts and low strength, and are prone to end breakage during production, especially ultra-high-count yarns above 200S. At the same time, high-count yarns are mainly used in the production of high-end clothing fabrics, which require high yarn quality, so It is more difficult to produce high count yarn. At present, the production of pure cotton high-count dyed yarn in my country is still in its infancy, and there is a big gap with developed countries such as Japan and Italy. Improving technical equipment, improving spinning quality, increasing spinning count, and reducing labor intensity are the key points for my country's spinning The direction of efforts and development of the yarn industry. the

Contents of the invention

The object of the present invention is to provide a kind of ultra-high-count pure cotton combed yarn and its spinning process aiming at the defects existing in the prior art. the

In order to achieve the above object, the present invention adopts the following technical scheme: a kind of ultra-high-count pure cotton combed yarn, the raw cotton adopts Egyptian cotton with a weight percentage of 15%~25%, American cotton with 25%~35% and 40%~ 50% of Xinjiang long-staple cotton is blended and spun into 200-300S pure cotton yarn by combing machine. the

A spinning process of extra-high-count pure cotton combed yarn, comprising the steps of:

(1) Blowing and carding process: The cleaning process adopts the process principle of "light and thin grasping, soft opening, and increased noil", appropriately reduces the speed of each beater of the opening and cleaning machine, and increases the distance between dust bars; carding adopts " According to the process principle of tight gauge, light quantity and slow speed, reduce the output and quantity at the same time, increase the speed of the cover plate, and control the air pressure and air volume everywhere;

(2) Combing process: the number of pre-drawing and combining is 6, and the draft ratio is less than or equal to the number of combining; 22 to 28 pre-drawing and combining are used for the lapping, and the weight of the lap is maintained at about 60g/m ; The speed of the combing machine is controlled at 175~280 pincers/min, the arc angle of the cylinder is 115°, the cotton feeding method is adopted backward, the cotton feeding length is 4.3 mm, and the top comb density is controlled at 30 needles/cm~36 needle/cm;

(3) Drawing frame process: Adopt single-lane drawing frame process with autoleveler, control the speed of combing machine at 300-350 m/min, combine 6 combed slivers, and draft at about 6 times, design quantitative At about 3.0 g/m, the roller gauge is 49×48×51mm, and the front roller speed is 150rpm/min;

(4) Roving process: the spindle speed is controlled at 700 ~900 r/min, the quantitative control of roving is 3.0-4.5g/10m, the twist coefficient of roving is controlled at 1.2~1.4, the roller gauge is 48×49×50mm, the initial draft The multiple is controlled at 1.19 times, and the total drafting multiple is controlled at 6.3 times;

(5) Spinning process: a compact spinning system with a large-diameter narrow-groove negative-pressure hollow roller—full-polymer spinning is adopted. At the same time, the drafting method adopts four-roller four-apron three-zone drafting to achieve 30~300 times Super large draft; spun yarn twist coefficient is 400-500, steel ring diameter is 34mm, top roller hardness is 60±3 degrees, spindle speed is 4000-8500rpm/min; nip gap is 2.0mm, front top roller stroke control Between 0-2mm, the weighting arm pressure is 210×120×120×140N/double spindle, the accumulation negative pressure is 1200-1800Pa, the distance between the front roller and the middle roller is 10.4-11.4mm, the middle roller and the middle roller The gauge is 10.4-30mm, the gauge between the second and rear rollers is 34-39mm, the draft in the middle zone is controlled at 1.1-3.0 times, the draft in the rear zone is controlled at 1.1-1.4 times, and the draft in the front zone is controlled at 10- 70 times, the total draft is controlled at 150-300 times;

(6) Winding process: In the winding process, the winding speed of the tank drum and the pressure of the winding cradle are appropriately reduced, and the yarn channel is cleaned at the same time; the winding speed is controlled at 400~600rpm/min.

Further, the cleaning and carding process described in step (1) also includes the following processes:

1) One-time opening, which adopts card beater, speed 850-900r/min, carding machine cover plate cylinder and doffer card clothing adopts short and dense metal elastic card clothing, licker-in roller adopts fine-toothed card clothing;

2) The second opening, the licker-in speed is 500-600r/min, the distance between the feeding roller and the licker-in roller of the comber is 0.03-0.04 inches, the distance between the licker-in roller and the cylinder is 0.006-0.008 inches, and the movable cover Plate and cylinder gauges are 0.008, 0.009, 0.1 inches, cylinder speed is 450-560r/min, cover plate speed is 250-320m/min, doffer speed is 700-900r/min, licker-in speed is 860-1060r /min, the output speed is 70-90m/min, and the weight is controlled at 16-20g/5m.

Beneficial effects of the present invention: (1) Through the use of blending, the raw cotton has the advantages of fine fineness and good maturity of Egyptian cotton, high strength of American cotton, no foreign fiber and long length of Xinjiang long-staple cotton, etc., to achieve ultra-high count In yarn production, there are requirements for raw cotton fiber length, length CV value, micronaire value, fineness, strength and other performance indicators. the

(2) In the spun yarn process, through the installation of a full-polymer spinning production system and the drafting part adopting the four-roller, four-apron, and three-zone drafting form, the production of ultra-high count yarn under heavy quantitative roving is realized, and the spinning efficiency is improved. , while ensuring the yarn quality. the

Detailed ways

The invention is an ultra-high-count pure cotton combed yarn. The raw cotton is mixed with 15%-25% Egyptian cotton, 25%-35% American cotton and 40%-50% Xinjiang long-staple cotton. Matched, and spun into 200~300S pure cotton yarn by combing machine. the

A spinning process of extra-high-count pure cotton combed yarn, comprising the steps of:

(1) Blowing and carding process: The cleaning process adopts the process principle of "light and thin grasping, soft opening, and increased noil", appropriately reduces the speed of each beater of the opening and cleaning machine, and increases the distance between dust bars; carding adopts " According to the process principle of tight gauge, light quantity and slow speed, reduce the output and quantity at the same time, increase the speed of the cover plate, and control the air pressure and air volume everywhere;

(2) Combing process: the number of pre-drawing and combining is 6, and the draft ratio is less than or equal to the number of combining; 22 to 28 pre-drawing and combining are used for the lapping, and the weight of the lap is maintained at about 60g/m ; The speed of the combing machine is controlled at 175~280 pincers/min, the arc angle of the cylinder is 115°, the cotton feeding method is adopted backward, the cotton feeding length is 4.3 mm, and the top comb density is controlled at 30 needles/cm~36 needle/cm;

(3) Drawing frame process: Adopt single-lane drawing frame process with autoleveler, control the speed of combing machine at 300-350 m/min, combine 6 combed slivers, and draft at about 6 times, design quantitative At about 3.0 g/m, the roller gauge is 49×48×51mm, and the front roller speed is 150rpm/min;

(4) Roving process: the spindle speed is controlled at 700 ~900 r/min, the quantitative control of roving is 3.0-4.5g/10m, the twist coefficient of roving is controlled at 1.2~1.4, the roller gauge is 48×49×50mm, the initial draft The multiple is controlled at 1.19 times, and the total drafting multiple is controlled at 6.3 times;

(5) Spinning process: a compact spinning system with a large-diameter narrow-groove negative-pressure hollow roller—full-polymer spinning is adopted. At the same time, the drafting method adopts four-roller four-apron three-zone drafting to achieve 30~300 times Super large draft; spun yarn twist coefficient is 400-500, steel ring diameter is 34mm, top roller hardness is 60±3 degrees, spindle speed is 4000-8500rpm/min; nip gap is 2.0mm, front top roller stroke control Between 0-2mm, the weighting arm pressure is 210×120×120×140N/double spindle, the accumulation negative pressure is 1200-1800Pa, the distance between the front roller and the middle roller is 10.4-11.4mm, the middle roller and the middle roller The gauge is 10.4-30mm, the gauge between the second and rear rollers is 34-39mm, the draft in the middle zone is controlled at 1.1-3.0 times, the draft in the rear zone is controlled at 1.1-1.4 times, and the draft in the front zone is controlled at 10- 70 times, the total draft is controlled at 150-300 times;

(6) Winding process: In the winding process, the winding speed of the tank drum and the pressure of the winding cradle are appropriately reduced, and the yarn channel is cleaned at the same time; the winding speed is controlled at 400~600rpm/min.

Among them, the cleaning and carding process described in step (1) also includes the following processes: 1) one-time opening, which uses a card beater at a speed of 850-900r/min, and the carding machine cover cylinder and doffer card clothing use short For dense metal elastic card clothing, the licker-in roller adopts fine-toothed card clothing; 2) for the second opening, the licker-in roller speed is 500-600r/min, and the distance between the feeding roller and the licker-in roller of the comber is 0.03-0.04 inches, The gap between the licker-in roller and the cylinder is 0.006-0.008 inches, the distance between the movable cover and the cylinder is 0.008, 0.009, 0.1 inches, the cylinder speed is 450-560r/min, the cover speed is 250-320m/min, doffer The speed is 700-900r/min, the licker-in speed is 860-1060r/min, the output speed is 70-90m/min, and the weight is controlled at 16-20g/5m. the

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. the

Example 1: Taking the addition of a fully polyspun device on the TH558 four-roller ultra-large draft ring spinning frame as an example, the pure cotton combed 2.7tex yarn is used as an example, and the weight percentage of raw cotton is 22% Egyptian cotton, 33% American cotton, and 45% Xinjiang cotton. The long-staple cotton is mixed, and the specific process steps are as follows:

(1) Blowing and carding unit:

The technological process includes: bale grabbing, first cotton opening, cotton blending, second cotton opening, impurity removal, and carding.

Using Trützschler blowing carding unit, the specific equipment and process are as follows: 

BDT, BOBA, AFC double-axis flow opener, LvSA heavy object separator, MM6 multi-compartment mixing box, CVT opener, DX multi-tube cyclone dust collector, FBK fine impurity remover, TC03 type carding machine.

The AFC type double-axial flow opener adopts the comb beater with a speed of 950r/min, the speed of the licker-in roller of the CVT opener is 600r/min, the distance between the feeding roller and the licker-in roller of the carding machine is 40 (1/1000inch), the licker-in roller and the licker-in roller Cylinder gauge 8, movable cover plate and cylinder gauge 8, 9, 10, cylinder speed 510r/min, cover plate speed 310m/min, doffer speed 780r/min, licker-in roller speed 930r/min, output speed 82m /min, weight control 16g/5m. the

Raw sliver quality index: Weight unevenness weight deviation Sliver short fiber content Neps (cnt/g) Impurities (cnt/g) fibrous seed crumbs <0.8% <0.8% <5.0% <40 <3 <4

(2) Combing process:

Rieter E62 combing machine is adopted. The combing machine adopts large-angle cylinder (110°) and high-density top comb (300 needles/100mm). The feeding length configuration is 5.2mm, the speed is 320 clamps/min, the brush can be effectively cleaned, and the table top is guaranteed to be absolutely smooth, ensuring the uniform output and delivery of the cotton web, and the control of combed noil by more than 22%.

Combed sliver quality index: Weight unevenness weight deviation Sliver short fiber content Neps (cnt/g) Impurities (cnt/g) fibrous seed crumbs <1.2% <0.8% 0 <18 0 0

(3) Second combing process:

The blowing and carding AFC double-axis flow opener is closed, the CVT beater speed is 300rpm/min, and the MM cotton bin is passed twice to make the mixing even. The cylinder speed of the carding machine is 380rpm/min, the distance between the movable cover plate and the cylinder is enlarged to 9, 10, 11/1000inch, the output speed is 80m/min, and the weight control is 16g/5m.

(4) Drawing process

Rieter (Rieter) RSB-D401 self-leveling draw frame is adopted, and the drawing process configuration is strictly in accordance with the drafting process configuration. In order not to make the sliver hairy, one draw frame is used, and 6 pieces are combined, and the initial draft is 1.75 times, the total draft is 8.02 times, the roller gauge is 49×48×51mm, the front roller speed is 150rpm/min, and the sliver weight is 18g/5m.

Draw frame quality index: Weight unevenness weight deviation Sliver short fiber content Neps (cnt/g) Impurities (cnt/g) fibrous seed crumbs <0.6% <0.5% 0 <18 0 0

(5) Roving process

Adopt Toyota FL100 type roving frame, use more effective false twister, spindle speed 600rpm/min, roving roller gauge 41×55×69mm, total draft ratio of roving is 7.5 times, initial draft is 1.19 times, roving twist coefficient 110-120, the fixed weight of roving is 4.8g/10m.

Roving Quality Index: Weight unevenness weight deviation Sliver short fiber content Neps (cnt/g) Impurities (cnt/g) fibrous seed crumbs <1.4% <0.6% 0 <18 0 0

(6) Spinning process

The TH558 four-roller ultra-large draft ring spinning frame equipped with a full-polymer spinning device is adopted, and the twist coefficient is positioned at about 410, which is too large to increase the spinning strength. In order to reduce the evenness CV, the hardness of the apron top roller is appropriately reduced to 60 degrees, the cradle pressure is 210×120×120×140N/double spindle, the front impulse of the front top roller is moved back between 2mm, and the spindle speed is 7500rPm/min, ensuring The output should not be too high, otherwise the traveler flying circle will be serious. The steel ring adopts PG13454, the traveler model adopts C1 EL Udr24/0, the upper pin of the 6833E pressure bar in the front area, the distance between the front jaws is 2mm, the upper pin of the middle area is 6833B, the distance between the jaws is 3.0mm, and the accumulation negative The pressure is 1400Pa, the distance between the first and middle rollers is 10.4mm, the distance between the first and second rear rollers is 24mm, and the distance between the second and rear rollers is 33mm. The draft is controlled at 52.9 times, and the total draft is controlled at 177.8 times.

Yarn quality:

(7) Winding process

The broken end lifting device is adopted, and the rotating speed is set at 600rpm/min. the

Embodiment 2 : Take the pure cotton combed 1.9tex yarn of adding full-poly spinning device on the TH558 four-roller ultra-large draft ring spinning frame as an example, and the raw cotton adopts weight percent as 20% Egyptian cotton, 30% American cotton, and 50% Xinjiang The long-staple cotton is mixed, and the specific process steps are as follows:

(1) Blowing and carding unit:

The technological process includes: bale grabbing, first cotton opening, cotton blending, second cotton opening, impurity removal, and carding.

Using Trützschler blowing carding unit, the specific equipment and process are as follows: 

BDT, BOBA, AFC double-axis flow opener, LvSA heavy object separator, MM6 multi-compartment mixing box, CVT opener, DX multi-tube cyclone dust collector, FBK fine impurity remover, TC03 type carding machine.

The AFC type double-axial flow opener adopts the comb beater with a speed of 950r/min, the speed of the licker-in roller of the CVT opener is 600r/min, the distance between the feeding roller and the licker-in roller of the carding machine is 40 (1/1000inch), the licker-in roller and the licker-in roller Cylinder gauge 8, movable cover plate and cylinder gauge 8, 9, 10, cylinder speed 510r/min, cover plate speed 310m/min, doffer speed 780r/min, licker-in roller speed 930r/min, output speed 82m /min, weight control 16g/5m. the

Raw sliver quality index: Weight unevenness weight deviation Sliver short fiber content Neps (cnt/g) Impurities (cnt/g) fibrous seed crumbs <0.8% <0.8% <5.0% <40 <3 <4

(2) Combing process:

Rieter E62 combing machine is adopted. The combing machine adopts large-angle cylinder (110°) and high-density top comb (300 needles/100mm). The feeding length configuration is 5.2mm, the speed is 320 clamps/min, the brush can be effectively cleaned, and the table top is guaranteed to be absolutely smooth, ensuring the uniform output and delivery of the cotton web, and the control of combed noil by more than 22%.

Combed sliver quality index: Weight unevenness weight deviation Sliver short fiber content Neps (cnt/g) Impurities (cnt/g) fibrous seed crumbs <1.2% <0.8% 0 <18 0 0

(3) Second combing process:

The blowing and carding AFC double-axis flow opener is closed, the CVT beater speed is 300rpm/min, and the MM cotton bin is passed twice to make the mixing even. The cylinder speed of the carding machine is 380rpm/min, the distance between the movable cover plate and the cylinder is enlarged to 9, 10, 11/1000inch, the output speed is 80m/min, and the weight control is 16g/5m.

(4) Drawing process

Rieter (Rieter) RSB-D401 self-leveling draw frame is adopted, and the drawing process configuration is strictly in accordance with the drafting process configuration. In order not to make the sliver hairy, one draw frame is used, and 6 pieces are combined, and the initial draft is 1.75 times, the total draft is 8.02 times, the roller gauge is 49×48×51mm, the front roller speed is 150rpm/min, and the sliver weight is 12g/5m.

Draw frame quality index: Weight unevenness weight deviation Sliver short fiber content Neps (cnt/g) Impurities (cnt/g) fibrous seed crumbs <0.6% <0.5% 0 <18 0 0

(5) Roving process

Adopt Toyota FL100 roving frame, use more effective false twister, spindle speed 600rpm/min, roving roller gauge 41×55×69mm, total draft ratio of roving is 6.8 times, initial draft is 1.19 times, roving twist coefficient 110-120, the fixed weight of roving is 3.5g/10m.

Roving Quality Index: Weight unevenness weight deviation Sliver short fiber content Neps (cnt/g) Impurities (cnt/g) fibrous seed crumbs <1.4% <0.6% 0 <18 0 0

(6) Spinning process

The TH558 four-roller ultra-large draft ring spinning frame equipped with a full-polymer spinning device is adopted, and the twist coefficient is positioned at about 420, which is too large to increase the spinning strength. In order to reduce the evenness CV, the hardness of the apron top roller is appropriately reduced to 60 degrees, the cradle pressure is 210×120×120×140N/double spindle, the forward impulse of the front top roller is moved back between 2mm, and the spindle speed is 5500rPm/min, ensuring The output should not be too high, otherwise the traveler flying circle will be serious. The steel ring adopts PG13454, the traveler model adopts C1 EL Udr28/0, the upper pin of the 6833E pressure bar in the front area, the distance between the front jaws is 2mm, the upper pin of the middle area is 6833B, the distance between the jaws is 3.0mm, and the accumulation negative The pressure is 1300Pa, the distance between the front roller and the middle roller is 10.4mm, the distance between the middle roller and the second roller is 24mm, the distance between the middle roller and the rear roller is 33mm, the draft in the middle area is controlled at 2.3 times, and the draft in the rear area is controlled at 1.2 times, the front area draft is controlled at 69 times, and the total draft is controlled at 184.2 times.

Yarn quality:

(7) Winding process

The broken end lifting device is adopted, and the rotating speed is set at 600rpm/min.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection of the present invention. within range. the

the

Claims (3)

1. A kind of ultra-high-count pure cotton combed yarn, characterized in that the raw cotton is 15% to 25% Egyptian cotton, 25% to 35% American cotton and 40% to 50% Xinjiang long staple Cotton is blended and spun into 200~300S pure cotton yarn. 2. a kind of spinning process of extra-high count pure cotton combed yarn is characterized in that, comprises the steps: (1) Blowing and carding process: The cleaning process adopts the process principle of "light and thin grasping, soft opening, and increased noil", appropriately reduces the speed of each beater of the opening and cleaning machine, and increases the distance between dust bars; carding adopts " According to the process principle of tight gauge, light quantity and slow speed, reduce the output and quantity at the same time, increase the speed of the cover plate, and control the air pressure and air volume everywhere; (2) Combing process: the number of pre-drawing and combining is 6, and the draft ratio is less than or equal to the number of combining; 22 to 28 pre-drawing and combining are used for the lapping, and the weight of the lap is maintained at about 60g/m ; The speed of the combing machine is controlled at 175~280 pincers/min, the arc angle of the cylinder is 115°, the cotton feeding method is adopted backward, the cotton feeding length is 4.3 mm, and the top comb density is controlled at 30 needles/cm~36 needle/cm; (3) Drawing frame process: Adopt single-lane drawing frame process with autoleveler, control the speed of combing machine at 300-350 m/min, combine 6 combed slivers, and draft at about 6 times, design quantitative At about 3.0 g/m, the roller gauge is 49×48×51mm, and the front roller speed is 150rpm/min; (4) Roving process: the spindle speed is controlled at 700 ~900 r/min, the quantitative control of roving is 3.0-4.5g/10m, the twist coefficient of roving is controlled at 1.2~1.4, the roller gauge is 48×49×50mm, the initial draft The multiple is controlled at 1.19 times, and the total drafting multiple is controlled at 6.3 times; (5) Spinning process: a compact spinning system with a large-diameter narrow-groove negative-pressure hollow roller—full-polymer spinning is adopted. At the same time, the drafting method adopts four-roller four-apron three-zone drafting to achieve 30~300 times Super large draft; spun yarn twist coefficient is 400-500, steel ring diameter is 34mm, top roller hardness is 60±3 degrees, spindle speed is 4000-8500rpm/min; nip gap is 2.0mm, front top roller stroke control Between 0-2mm, the weighting arm pressure is 210×120×120×140N/double spindle, the accumulation negative pressure is 1200-1800Pa, the distance between the front roller and the middle roller is 10.4-11.4mm, the middle roller and the middle roller The gauge is 10.4-30mm, the gauge between the second and rear rollers is 34-39mm, the draft in the middle zone is controlled at 1.1-3.0 times, the draft in the rear zone is controlled at 1.1-1.4 times, and the draft in the front zone is controlled at 10- 70 times, the total draft is controlled at 150-300 times; (6) Winding process: In the winding process, the winding speed of the tank drum and the pressure of the winding cradle are appropriately reduced, and the yarn channel is cleaned at the same time; the winding speed is controlled at 400~600rpm/min. 3. The spinning process of a kind of ultra-high-count pure cotton combed yarn as claimed in claim 2, characterized in that, the cleaning and carding process described in step (1) also includes the following processes: 1) One-time opening, which adopts card beater, speed 850-900r/min, carding machine cover plate cylinder and doffer card clothing adopts short and dense metal elastic card clothing, licker-in roller adopts fine-toothed card clothing; 2) The second opening, the licker-in speed is 500-600r/min, the distance between the feeding roller and the licker-in roller of the comber is 0.03-0.04 inches, the distance between the licker-in roller and the cylinder is 0.006-0.008 inches, and the movable cover Plate and cylinder gauges are 0.008, 0.009, 0.1 inches, cylinder speed is 450-560r/min, cover plate speed is 250-320m/min, doffer speed is 700-900r/min, licker-in speed is 860-1060r /min, the output speed is 70-90m/min, and the weight is controlled at 16-20g/5m.