CN117966317A - Yarn for high-count high-density fabric and preparation method and application thereof - Google Patents
Yarn for high-count high-density fabric and preparation method and application thereof Download PDFInfo
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- 239000004744 fabric Substances 0.000 title claims abstract description 57
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- 238000002360 preparation method Methods 0.000 title abstract description 10
- 229920000742 Cotton Polymers 0.000 claims abstract description 75
- 238000000034 method Methods 0.000 claims abstract description 48
- 238000009987 spinning Methods 0.000 claims abstract description 28
- 238000009960 carding Methods 0.000 claims abstract description 25
- 238000004140 cleaning Methods 0.000 claims abstract description 20
- 239000012535 impurity Substances 0.000 claims description 19
- 241001481760 Erethizon dorsatum Species 0.000 claims description 6
- 239000000428 dust Substances 0.000 claims description 3
- 244000144992 flock Species 0.000 claims 1
- 241000219146 Gossypium Species 0.000 description 38
- 230000000052 comparative effect Effects 0.000 description 18
- 230000000694 effects Effects 0.000 description 11
- 238000004804 winding Methods 0.000 description 10
- 230000007547 defect Effects 0.000 description 6
- 240000000047 Gossypium barbadense Species 0.000 description 5
- 235000009429 Gossypium barbadense Nutrition 0.000 description 5
- 239000002994 raw material Substances 0.000 description 5
- 239000000835 fiber Substances 0.000 description 4
- 239000004753 textile Substances 0.000 description 4
- 239000011324 bead Substances 0.000 description 3
- 238000005452 bending Methods 0.000 description 3
- 238000007380 fibre production Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000010009 beating Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009940 knitting Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
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Abstract
The invention discloses a yarn for a high-count high-density fabric, and a preparation method and application thereof, and belongs to the technical field of spinning. The yarn for the high-count and high-density fabric is formed by pure spinning fine cotton fibers, and the performance parameters of the fine cotton fibers are as follows: the effective length is 29.5-30mm. The preparation method of the yarn for the high-count and high-density fabric comprises the following steps: a cleaning procedure; carding and combing: in the cotton carding process, the surface linear speed ratio of the cylinder and the licker-in is adjusted to be more than 2.2; cylinder speed 330-340 rpm, licker-in speed 750-760 rpm, doffer speed 19-20 rpm, dry weight ration 19-20g/5m; drawing; roving process: the twist of the roving is 5.9-6.1 twists/10 cm, and the twist coefficient is 118-122; spinning; and (5) a spooling procedure. The yarn for the high-count and high-density fabric can be obtained by adopting fine cotton fibers with specific performance parameters instead of long cotton staple.
Description
Technical Field
The invention relates to the technical field of textile, in particular to a yarn for a high-count high-density fabric, a preparation method and application thereof.
Background
With the continuous improvement of the social life level, the appearance and performance requirements of people on textiles are continuously improved. Comfortable soft, exquisite and fine high-count and high-density fabric has smooth hand feeling and soft skin-friendly property, and is a representation of high-end fabrics.
The material of the medium-high count and high density product cloth of the household textile takes pure cotton as a main material, and also has fancy varieties such as blending with polyester fiber or interweaving with silk. The high-grade luxury bedding takes the high-count high-density fabric as the base material and is aided with the design of pattern printing and dyeing after-finishing style and the like, so that the luxury, delicacy, no falling price of the product are highlighted, and the time trend of high added value of the product of textile technology is fully reflected. However, the high-count and high-density fabric has high yarn count requirement and high density, so that the yarn consumption is large, the manufacturing efficiency is low, and the yarn consumption is required to have high yarn strength, few defects, soft hand feeling, uniform evenness and good color. At present, high-count and high-density yarns are produced by using high-quality long staple cotton.
Disclosure of Invention
The invention aims to overcome the technical defects, and provides a yarn for high-count and high-density fabric, a preparation method and application thereof, and the technical problem of how to produce the high-count and high-density yarn by fine cotton fibers in the prior art is solved.
In order to achieve the technical aim, the technical scheme of the invention provides a yarn for high-count and high-density fabric, which is formed by pure spinning fine cotton fibers, wherein the performance parameters of the fine cotton fibers are as follows: the effective length is 29.5-30mm, the impurity content is 1.8-2.3%, the micronaire value is 3.8-4, and the specific strength is 29.8-30CN/tex.
In some embodiments, the high count high density fabric yarn has a count of 100 counts.
In addition, the invention also provides a preparation method of the yarn for the high-count high-density fabric, which comprises the following steps:
s1, a cleaning procedure: the production method is characterized in that 100% fine cotton fibers are used for production, the beater speed of a bale plucker is 650-700r/min, the motor belt pulley is 160-170mm, the rolling roller speed is 9-11 revolutions per minute, and the motor belt pulley is 70-80mm; removing a second root of the A036 inlet dust rod;
s2, cotton carding and combing: in the cotton carding process, the surface linear speed ratio of the cylinder and the licker-in is adjusted to be more than 2.2; cylinder speed 330-340 rpm, licker-in speed 750-760 rpm, doffer speed 19-20 rpm, dry weight ration 19-20g/5m;
s3, drawing process: drawing and combining together, namely adopting 8-root combination, and quantifying 17-18g/5m dry weight and 1.3-1.4 times of draft in a rear zone;
S4, roving process: the twist of the roving is 5.9-6.1 twists/10 cm, the twist coefficient is 118-122, the roller gauge is 9mm multiplied by 22mm multiplied by 35mm, the back zone draft is 1.2-1.3 times, the jaw gauge is 7-7.5mm, and the dry weight ration of the roving is 3.74-3.78g/10m;
S5, spinning: the yarn guide hook adopts aperture of 2.0mm, the spinning process adopts compact spinning production, the roller gauge is 17.5mm multiplied by 37.5mm, the rear zone draft multiple is 1.18-1.25 times, the jaw gauge is 2.5-3mm, and the front roller diameter is 27mm;
s6, a spooling process: electrical cleaning parameters, N: 450%. Times.0.6 cm, S: 170%. Times.1.6 cm, L: 40%. Times.35 cm, T: -30% ×30cm.
In some embodiments, in step S1, the porcupine beater speed is 410-420r/min.
In some embodiments, in step S1, the cotton cleaning and impurity removing efficiency is 30-40%, the short staple growth rate is 0-12%, the cotton cleaning and doffing rate is 1.5-2.5%, and the cotton roll ration is 15.5-15.7kg.
In some embodiments, in step S2, the carding process is a card clothing, and the service periods are controlled to be cylinder clothing AC2030× 01550, cover clothing JPT42, doffer clothing AD4030×02090, and licker-in clothing AT5010×0503, respectively.
In some embodiments, in step S2, in the combing process, the top comb is selected from the group consisting of encryption type, cylinder speed 220-230 rpm, dry weight basis weight 18.9-19.1g/5m.
In some embodiments, in step S4, the front roller speed is 167-173r/min.
In some embodiments, in step S5, spindle speed 13500-13550 r/min, twist 173.5-175 turns/10 cm, twist multiplier 417.8-421; and/or, in the step S6, the speed of the spooling procedure is 800-850m/min.
In addition, the invention also provides the yarn for the high-count and high-density fabric or the application of the yarn for the high-count and high-density fabric, which is prepared by the preparation method of the yarn for the high-count and high-density fabric, in the aspect of producing high-grade bedding fabrics.
Compared with the prior art, the invention has the beneficial effects that: the invention provides a yarn for high-count and high-density fabric, which is formed by pure spinning fine cotton fibers, and has the effective length of 29.5-30mm, the impurity content of 1.8-2.3%, the micronaire value of 3.8-4 and the specific strength of 29.8-30CN/tex. The yarn for the high-count and high-density fabric can be obtained by adopting fine cotton fibers with specific performance parameters instead of long cotton staple.
Detailed Description
In this disclosure reference is made to "some embodiments," "this embodiment," and examples, etc., which describe a subset of all possible embodiments, but it is to be understood that "some embodiments" can be the same subset or different subsets of all possible embodiments and can be combined with one another without conflict.
If a similar description of "first/second" appears in the application document, the following description is added, in which the terms "first/second/third" are merely distinguishing between similar objects and not representing a particular ordering of the objects, it being understood that the "first/second/third" may be interchanged with a particular order or precedence, where allowed, so that the embodiments described herein can be implemented in an order other than that illustrated or described herein.
The term "and/or" in this embodiment is merely an association relationship describing an associated object, and indicates that three relationships may exist, for example, object a and/or object B may indicate: there are three cases where object a alone exists, object a and object B together, and object B alone exists.
The specific embodiment provides a yarn for high-count and high-density fabric, which is formed by pure spinning fine cotton fibers, wherein the performance parameters of the fine cotton fibers are as follows: the effective length is 29.5-30mm, the impurity content is 1.8-2.3%, the micronaire value is 3.8-4, and the specific strength is 29.8-30CN/tex; in some embodiments, the high count high density fabric has a yarn count of 100 counts.
The specific embodiment also provides a preparation method of the yarn for the high-count high-density fabric, which comprises the following steps:
S1, a cleaning procedure: the production method is characterized in that 100% fine cotton fibers are used for production, the beater speed of a bale plucker is 650-700r/min, the motor belt pulley is 160-170mm, the rolling roller speed is 9-11 revolutions per minute, and the motor belt pulley is 70-80mm; the speed of the porcupine beater is 410-420r/min; the cotton cleaning and impurity removing efficiency is 30-40%, the short velvet growth rate is 0-12%, the cotton cleaning and doffing rate is 1.5-2.5%, and the cotton roll ration is 15.5-15.7kg; the beating speed of each beating is properly reduced in the cleaning procedure, the second root of the dust rod at the inlet of A036 is removed, the doffing is increased, and the impurity removal is improved;
S2, cotton carding and combing: in the cotton carding process, the surface linear speed ratio of the cylinder and the licker-in is adjusted to be more than 2.2; cylinder speed 330-340 rpm, licker-in speed 750-760 rpm, doffer speed 19-20 rpm, dry weight ration 19-20g/5m; the cloth needle in the cotton carding process is cylinder clothing AC 2030X 01550, cover plate clothing JPT42, doffer clothing AD 4030X 02090 or licker-in clothing AT 5010X 0503; in the combing process, the top comb is encrypted, the cylinder speed is 220-230 r/min, and the dry weight ration is 18.9-19.1g/5m;
s3, drawing process: drawing and combining together, namely adopting 8-root combination, and quantifying 17-18g/5m dry weight and 1.3-1.4 times of draft in a rear zone;
s4, roving process: the twist of the roving is 5.9-6.1 twists/10 cm, the twist coefficient is 118-122, the roller gauge is 9mm multiplied by 22mm multiplied by 35mm, the back zone draft is 1.2-1.3 times, the jaw gauge is 7-7.5mm, and the dry weight ration of the roving is 3.74-3.78g/10m; the rotating speed of the front roller is 167-173r/min;
S5, spinning: the yarn guide hook adopts aperture of 2.0mm, the spinning process adopts compact spinning production, the roller gauge is 17.5mm multiplied by 37.5mm, the rear zone draft multiple is 1.18-1.25 times, the jaw gauge is 2.5-3mm, and the front roller diameter is 27mm; spindle rotating speed 13500-13550r/min, twist 173.5-175 twist/10 cm, twist coefficient 417.8-421;
S6, a spooling process: electrical cleaning parameters, N: 450%. Times.0.6 cm, S: 170%. Times.1.6 cm, L: 40%. Times.35 cm, T: -30% ×30cm; the speed of the spooling process is 800-850m/min.
The specific embodiment also provides the yarn for the high-count and high-density fabric or the application of the yarn for the high-count and high-density fabric, which is prepared by the preparation method of the yarn for the high-count and high-density fabric, in the aspect of producing high-grade bedding fabrics
The present invention will be described in further detail with reference to the following examples in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Example 1
The embodiment provides a yarn for high-count and high-density fabric, which is formed by pure spinning fine cotton fibers, wherein the performance parameters of the fine cotton fibers are as follows: the effective length is 29.5-30mm, the impurity content is 1.8-2.3%, the micronaire value is 3.8-4, and the specific strength is 29.8-30CN/tex; in some embodiments, the high count high density fabric has a yarn count of 100 counts.
The embodiment provides a yarn for high-count and high-density fabric, which is produced through the following steps:
(1) And (3) a cleaning procedure: using 100% fine cotton wool fiber production, wherein the fine cotton wool fiber has the following performance parameters: grade three-stage, effective length 29.5-30mm, impurity content 1.8-2.3%, MAclone value 3.8-4, specific strength 29.8-30CN/tex.
The beater and the ribs of the A002 bale plucker are flat, the beater speed of the bale plucker is 700r/min, the motor belt pulley is 160 mm; fine cotton grabbing is realized, the operation efficiency of the cotton grabbing machine is improved, and the efficiency is ensured to be more than 95%; a036 porcupine beater speed 420r/min, and checking a comb needle beater to prevent bending teeth and more missing teeth, so that the carding effect is affected; the speed of the winding roller is 10 revolutions per minute; 80mm of motor belt pulley; the moisture regain of the cotton roll is controlled to be about 7.0%, and the cotton roll has the effects of cleaning and impurity removing: 35%, short staple growth rate 3%, cotton picking rate 1.5%, cotton roll ration 15.5kg;
(2) Carding and combing: the carding process is preferably card clothing, and the service period is controlled. Cylinder clothing AC2030 x 01550, cover clothing JPT42, doffer clothing AD4030 x 02090, licker-in clothing AT5010 x 0503; the surface linear speed ratio of the cylinder and the licker-in is adjusted to be more than 2.2, and the carding effect is enhanced.
Cylinder speed 330 rpm, spike roller speed 760 rpm, doffer speed 19 rpm. Dry weight basis 19g/5m; in the combing process, the top comb is encrypted, the cylinder speed is 220 rpm, and the dry weight ration is 18.9g/5m;
(3) Drawing process: the drawing is combined together, so that the influence of overripening of the sliver on the strength is avoided, and the use of a Liddar drawing frame is used for ensuring the uniformity of the sliver. 8 roots are combined, the dry weight is quantified by 17g/5m, and the draft of the rear zone is 1.3 times; drawing roller gauge 38mm x 42mm.
(4) Roving process: the twist of the roving is 5.9 turns/10 cm, the twist coefficient is 118, the roller gauge is 9mm multiplied by 22mm multiplied by 35mm, the back zone draft is 1.2 times, the jaw gauge is 7mm, the dry weight ration of the roving is 3.74g/10m, and the front roller rotating speed is 173r/min;
(5) Spinning: the spun yarn is comprehensively checked on the hanging spindle, the yarn guide rod and the yarn guide hook, the hanging spindle is required to be flexibly adjusted to be 1 grade, the yarn guide rod has no peeling burrs, and the yarn guide hook has no grooving phenomenon. The caliber of the yarn guide hook is 2.0 mm. The spinning process adopts compact spinning production, the roller gauge is 17.5mm multiplied by 37.5mm, the back zone draft multiple is 1.18 times, the jaw gauge is 2.5mm, the front roller diameter is 27mm, the spindle rotating speed is 13500r/min, the twist 175 turns/10 cm, the twist coefficient is 417.8, the model PG1/2-3554 for the ring and the model OSS18/0 for the bead ring.
(6) And (3) a winding process: on village field automatic winding machine production, rationally set up electric clear parameter, excision nep, detail etc. harmful yarn defect, electric clear parameter, N:450 percent ×0.6cm、S：170％×1.6cm、L：40％×35cm、T：-30％× cm, the speed of the spooling process is 800m/min, the JC5.8tex single yarn is prepared, and the prepared single yarn is the yarn for the high count and high density fabric.
Example 2
The embodiment provides a yarn for high-count and high-density fabric, which is formed by pure spinning fine cotton fibers, wherein the performance parameters of the fine cotton fibers are as follows: the effective length is 29.5-30mm, the impurity content is 1.8-2.3%, the micronaire value is 3.8-4, and the specific strength is 29.8-30CN/tex; in some embodiments, the high count high density fabric has a yarn count of 100 counts.
The embodiment provides a yarn for high-count and high-density fabric, which is produced through the following steps:
(1) And (3) a cleaning procedure: using 100% fine cotton wool fiber production, wherein the fine cotton wool fiber has the following performance parameters: grade three-stage, effective length 29.5-30mm, impurity content 1.8-2.3%, MAclone value 3.8-4, specific strength 29.8-30CN/tex.
A002 plucker has beater speed 680r/min, motor belt pulley 165mm, beater and rib flat; fine cotton grabbing is realized, the operation efficiency of the cotton grabbing machine is improved, and the efficiency is ensured to be more than 95%; a036 porcupine beater speed 415r/min, and checking the comb needle beater to prevent bending teeth, and more missing teeth to influence carding effect; the speed of the winding roller is 11 revolutions per minute; the motor belt pulley is 70mm; the moisture regain of the cotton roll is controlled to be about 7.0%, and the cotton roll has the effects of cleaning and impurity removing: 30%, short staple growth rate 12%, cotton picking rate 12%, cotton roll ration 15.6kg;
(2) Carding and combing: the carding process is preferably card clothing, and the service period is controlled. Cylinder clothing AC2030 x 01550, cover clothing JPT42, doffer clothing AD4030 x 02090, licker-in clothing AT5010 x 0503; the surface linear speed ratio of the cylinder and the licker-in is adjusted to be more than 2.2, and the carding effect is enhanced.
Cylinder speed 335 rpm, licker-in speed 750 rpm, doffer speed 20 rpm. Dry weight basis 19.5g/5m; in the combing process, the top comb is encrypted, the cylinder speed is 225 revolutions per minute, and the dry weight ration is 19.1g/5m;
(3) Drawing process: the drawing is combined together, so that the influence of overripening of the sliver on the strength is avoided, and the use of a Liddar drawing frame is used for ensuring the uniformity of the sliver. 8 roots are combined, the dry weight is quantified to be 18g/5m, and the draft of the rear zone is 1.4 times; drawing roller gauge 38mm x 42mm.
(4) Roving process: the twist of the roving is 6 turns/10 cm, the twist coefficient is 120, the roller gauge is 9mm multiplied by 22mm multiplied by 35mm, the back zone draft is 1.3 times, the jaw gauge is 7.5mm, the dry weight ration of the roving is 3.78g/10m, and the front roller rotating speed is 171r/min;
(5) Spinning: the spun yarn is comprehensively checked on the hanging spindle, the yarn guide rod and the yarn guide hook, the hanging spindle is required to be flexibly adjusted to be 1 grade, the yarn guide rod has no peeling burrs, and the yarn guide hook has no grooving phenomenon. The caliber of the yarn guide hook is 2.0 mm. The spinning process adopts compact spinning production, the roller gauge is 17.5mm multiplied by 37.5mm, the back zone draft multiple is 1.18 times, the jaw gauge is 3mm, the front roller diameter is 27mm, the spindle rotating speed is 13500r/min, the twist is 173.5 twist/10 cm, the twist coefficient is 421, the model PG1/2-3554 for the ring is used, and the model OSS18/0 for the bead ring is used.
(6) And (3) a winding process: on village field automatic winding machine production, rationally set up electric clear parameter, excision nep, detail etc. harmful yarn defect, electric clear parameter, N: 450%. Times.0.6 cm, S: 170%. Times.1.6 cm, L: 40%. Times.35 cm, T: 30 percent multiplied by 30cm, the speed of the spooling procedure is 830m/min, the JC5.8tex single yarn is prepared, and the prepared single yarn is the yarn for the high-count high-density fabric.
Example 3
The embodiment provides a yarn for high-count and high-density fabric, which is formed by pure spinning fine cotton fibers, wherein the performance parameters of the fine cotton fibers are as follows: the effective length is 29.5-30mm, the impurity content is 1.8-2.3%, the micronaire value is 3.8-4, and the specific strength is 29.8-30CN/tex; in some embodiments, the high count high density fabric has a yarn count of 100 counts.
The embodiment provides a yarn for high-count and high-density fabric, which is produced through the following steps:
(1) And (3) a cleaning procedure: using 100% fine cotton wool fiber production, wherein the fine cotton wool fiber has the following performance parameters: grade three-stage, effective length 29.5-30mm, impurity content 1.8-2.3%, MAclone value 3.8-4, specific strength 29.8-30CN/tex.
A002 plucker beater speed 650r/min, motor belt pulley 170mm, beater and rib flat; fine cotton grabbing is realized, the operation efficiency of the cotton grabbing machine is improved, and the efficiency is ensured to be more than 95%; a036 porcupine beater speed is 410r/min, and the comb needle beater is checked to prevent bending teeth, and the teeth lack are more, so that the carding effect is affected; the speed of the winding roller is 9 revolutions per minute; 75mm of motor belt pulley; the moisture regain of the cotton roll is controlled to be about 7.0%, and the cotton roll has the effects of cleaning and impurity removing: 40%, short staple growth rate 8%, cotton picking rate 2.5%, cotton roll ration 15.7kg;
(2) Carding and combing: the carding process is preferably card clothing, and the service period is controlled. Cylinder clothing AC2030 x 01550, cover clothing JPT42, doffer clothing AD4030 x 02090, licker-in clothing AT5010 x 0503; the surface linear speed ratio of the cylinder and the licker-in is adjusted to be more than 2.2, and the carding effect is enhanced.
Cylinder speed 340 rpm, licker-in speed 755 rpm, doffer speed 19 rpm. Dry weight basis was 20g/5m; in the combing process, the top comb is encrypted, the cylinder speed is 230 rpm, and the dry weight ration is 19g/5m;
(3) Drawing process: the drawing is combined together, so that the influence of overripening of the sliver on the strength is avoided, and the use of a Liddar drawing frame is used for ensuring the uniformity of the sliver. 8 roots are combined, the dry weight is quantified by 17.5g/5m, and the draft of the rear zone is 1.4 times; drawing roller gauge 38mm x 42mm.
(4) Roving process: the twist of the roving is 6.1 turns/10 cm, the twist coefficient is 122, the roller gauge is 9mm multiplied by 22mm multiplied by 35mm, the back zone draft is 1.2 times, the jaw gauge is 7mm, the dry weight ration of the roving is 3.76g/10m, and the front roller rotating speed is 167r/min;
(5) Spinning: the spun yarn is comprehensively checked on the hanging spindle, the yarn guide rod and the yarn guide hook, the hanging spindle is required to be flexibly adjusted to be 1 grade, the yarn guide rod has no peeling burrs, and the yarn guide hook has no grooving phenomenon. The caliber of the yarn guide hook is 2.0 mm. The spinning process adopts compact spinning production, the roller gauge is 17.5mm multiplied by 37.5mm, the back zone draft multiple is 1.18 times, the jaw gauge is 2.5mm, the front roller diameter is 27mm, the spindle rotating speed is 13500r/min, the twist is 173.5 twist/10 cm, the twist coefficient is 420, the model PG1/2-3554 for the ring and the model OSS18/0 for the bead ring.
(6) And (3) a winding process: on village field automatic winding machine production, rationally set up electric clear parameter, excision nep, detail etc. harmful yarn defect, electric clear parameter, N: 450%. Times.0.6 cm, S: 170%. Times.1.6 cm, L: 40%. Times.35 cm, T: -30 percent multiplied by 30cm, and the spooling procedure speed is 850m/min, thus obtaining the JC5.8tex single yarn, and the single yarn is the yarn for the high count and high density fabric.
Comparative example 1
The production method of this comparative example was the same as in example 1, except that the raw materials were different, and the raw materials of this comparative example were fine cotton wool having an effective length of 29 to 29.2mm, a content of impurities of 2 to 2.5%, a MAXU value of 4 to 4.2, and a specific strength of 29 to 29.4 CN/tex.
Comparative example 2
The production method of this comparative example was the same as in example 1, except that the raw materials were different, long staple cotton was used in this comparative example, the effective length was 37.8mm, the micronaire value was 3.8, and the specific strength was 40-42CN/tex.
Comparative example 3
The production method of this comparative example was the same as in example 1, except that the raw materials were different, and the raw materials of this comparative example were produced using 50% long staple cotton fibers and 50% fine staple cotton fibers, the effective length of the long staple cotton was 37.8mm, ma Zhi 3.8.8, the specific strength was 40-42CN/tex, the effective length of the fine staple cotton was 29-29.2mm, the impurity content was 2-2.5%, the micronaire value was 4-4.2, and the specific strength was 29-29.4CN/tex.
Comparative example 4
The production method of this comparative example was basically the same as that of example 1, except that the motor pulley was 185mm in the blowing step, the speed of the winding roller was 12 rpm, and the motor pulley was 95mm; the surface linear ratio of the cylinder to the licker-in the cotton carding process is 1.8.
Comparative example 5
The production method of this comparative example was substantially the same as in example 1, except that a standard top comb was used for the combing process.
Comparative example 6
The production method of this comparative example was substantially the same as in example 1, except that the dry weight basis of the drawing process was 14.7g/5m; the dry weight of the roving in the roving step was 2.8g/10m.
The quality index of the high count high density fabric yarn produced in example 1 and comparative examples 1 to 6 is shown in table 1 below.
TABLE 1 results of Performance test of the single yarns produced in examples 1-3 and comparative examples 1-4
From the data in table 1, it can be seen that the 100 single yarns prepared in the embodiment 1 provided by the invention use 100% fine cotton fibers, and the effect of the evenness index of the 100% long cotton fibers in the comparative example 2 is achieved by preferably blending cotton, optimizing the process and the like, and the single yarns are smooth and soft, even in evenness, and good in hygroscopicity, and can be used for high-grade bedding fabrics.
The invention uses 100% fine cotton fibers for production, properly reduces the striking speed of each strike by selecting and matching proper raw cotton, improves the speed ratio of cylinder and licker-in the cotton carding process, reduces neps, improves the cleanliness of cotton web, adopts encryption top comb in the combing process, and improves the short cotton and neps removal rate. The produced 100-count yarn has good evenness, achieves the effect of using 100% long staple cotton, has good knitting performance, reduces yarn breakage and has few defects of cloth cover
The above-described embodiments of the present invention do not limit the scope of the present invention. Any other corresponding changes and modifications made in accordance with the technical idea of the present invention shall be included in the scope of the claims of the present invention.
Claims (10)
1. The yarn for the high-count and high-density fabric is characterized by being formed by pure spinning fine cotton fibers, wherein the performance parameters of the fine cotton fibers are as follows: the effective length is 29.5-30mm, the impurity content is 1.8-2.3%, the micronaire value is 3.8-4, and the specific strength is 29.8-30CN/tex.
2. The yarn for high count and high density fabrics as claimed in claim 1, wherein the count is 100 counts.
3. A method for producing the yarn for high count and high density fabrics according to any one of claims 1-2, comprising the steps of:
S1, a cleaning procedure: 100% fine cotton wool is used for production, the beater speed of the bale plucker is 650-700r/min, the motor belt pulley is 160-170mm, the lapping roller speed is 9-11 revolutions per minute, and the motor belt pulley is 70-80mm; removing a second root of the A036 inlet dust rod;
s2, cotton carding and combing: in the cotton carding process, the surface linear speed ratio of the cylinder and the licker-in is adjusted to be more than 2.2; cylinder speed 330-340 rpm, licker-in speed 750-760 rpm, doffer speed 19-20 rpm, dry weight ration 19-20g/5m;
s3, drawing process: drawing and combining together, namely adopting 8-root combination, and quantifying 17-18g/5m dry weight and 1.3-1.4 times of draft in a rear zone;
S4, roving process: the twist of the roving is 5.9-6.1 twists/10 cm, the twist coefficient is 118-122, the roller gauge is 9mm multiplied by 22mm multiplied by 35mm, the back zone draft is 1.2-1.3 times, the jaw gauge is 7-7.5mm, and the dry weight ration of the roving is 3.74-3.78g/10m;
S5, spinning: the yarn guide hook adopts aperture of 2.0mm, the spinning process adopts compact spinning production, the roller gauge is 17.5mm multiplied by 37.5mm, the rear zone draft multiple is 1.18-1.25 times, the jaw gauge is 2.5-3mm, and the front roller diameter is 27mm;
s6, a spooling process: electrical cleaning parameters, N: 450%. Times.0.6 cm, S: 170%. Times.1.6 cm, L: 40%. Times.35 cm, T: -30% ×30cm.
4. The method for producing a yarn for high count and dense fabric according to claim 3, wherein in step S1, the porcupine beater speed is 410-420r/min.
5. The method for producing a yarn for high count and high density fabric according to claim 3, wherein in step S1, the cleaning and impurity removing efficiency is 30 to 40%, the flock growth rate is 0 to 12%, the cleaning and doffing rate is 1.5 to 2.5%, and the lap ration is 15.5 to 15.7kg.
6. The method of producing a yarn for high count and high density fabrics according to claim 3, wherein in step S2, the carding process is a card clothing, and the service cycle is controlled to be cylinder clothing AC2030 x 01550, cover clothing JPT42, doffer clothing AD4030 x 02090, and licker-in clothing AT5010 x 0503, respectively.
7. The method for producing a yarn for high count and high density fabric according to claim 3, wherein in the step S2, the top comb is selected from the group consisting of an encryption type, a cylinder speed of 220 to 230 rpm, and a dry weight basis weight of 18.9 to 19.1g/5m.
8. The method for producing a yarn for high count and high density fabrics according to claim 3, wherein in step S4, the front roller rotation speed is 167-173r/min.
9. The method for producing a yarn for high count and high density fabric according to claim 3, wherein in step S5, spindle rotation speed is 13500-13550r/min, twist number is 173.5-175 twist/10 cm, twist coefficient is 417.8-421; and/or, in the step S6, the speed of the spooling procedure is 800-850m/min.
10. Use of the yarn for high count and high density fabric according to any one of claims 1 to 2 or the yarn for high count and high density fabric according to any one of claims 3 to 9 in the production of high grade bedding fabrics.
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