CN105350135A - Production method of apocynum venetum/long staple cotton blended yarn - Google Patents

Abstract

The invention relates to a production method of apocynum/long-staple cotton blended yarn. The process includes: pre-opening the apocynum fiber, adding 3% warm water solution of oil agent, stacking for 24 hours; making cotton slivers through the cleaning and carding process of long-staple cotton; tearing the cotton slivers into pieces Afterwards, mix with the treated apocynum fiber according to the ratio of apocynum/long-staple cotton 35/65; then the mixed apocynum/long-staple cotton is opened and cleaned according to the cotton spinning process, carding process, combing process, Apocynum/long-staple cotton blended yarn is prepared through three drawing frames, roving process and spun process. The invention can make apocynum and long-staple cotton into blended yarn with good quality. The yarn makes the apocynum fiber and long-staple cotton complementary and optimized, and combines the antibacterial and health-care functions of apocynum and the moisture absorption and breathability of long-staple cotton. properties, so that they can exert their respective characteristics, the yarn structure is optimized, and the yarn quality is better.

Description

A kind of production method of apocynum/long-staple cotton blended yarn

technical field

The invention relates to the new technical field of ring spinning, in particular to a production method of apocynum/long-staple cotton blended yarn.

Background technique

With the continuous enhancement of people's awareness of environmental protection and health care, green ecological textiles are more and more popular, and the apocynum textiles using apocynum as raw material have begun to attract people's general attention due to their unique properties. Apocynum is a kind of bast fiber, which is thin and strong. The fiber combines the luster of silk, the softness of cotton, and the crispness of linen. It has the characteristics of crispness, smoothness, good hygroscopicity, fast heat dissipation, and good air permeability. The textiles made of apocynum fiber not only have good comfort, but also have unique health care functions because the fibers contain cardiac glycosides, quercetin, flavonoids, various amino acids and other pharmaceutical ingredients. In addition, apocynum fabric also has antibacterial and anti-corrosion effects. It is determined that after washing 30 times, the sterility rate of apocynum fabric is still 10-20 times higher than that of ordinary fabrics, and it is a natural antibacterial fiber. Therefore, apocynum can be used to weave healthy fabrics, which is called the best natural textile fiber by many scholars and is the health care fiber of the 21st century. In addition, the textile fabric made of apocynum and long-staple cotton blended yarn has good drape and antistatic properties, fast moisture absorption and moisture dissipation, and has a silky luster and feel.

For this, the present invention provides a kind of production method of apocynum/long-staple cotton blended yarn. The process includes: pre-opening the apocynum fiber, adding 3% warm water solution of oil agent, stacking for 24 hours; making cotton slivers through the cleaning and carding process of long-staple cotton; tearing the cotton slivers into pieces Afterwards, mix with the treated apocynum fiber according to the ratio of apocynum/long-staple cotton 35/65; then the mixed apocynum/long-staple cotton is opened and cleaned according to the cotton spinning process, carding process, combing process, Apocynum/long-staple cotton blended yarn is prepared through three drawing frames, roving process and spun process. The invention can make apocynum and long-staple cotton into blended yarn with good quality. The yarn makes the apocynum fiber and long-staple cotton complementary and optimized, and combines the antibacterial and health-care functions of apocynum and the moisture absorption and breathability of long-staple cotton. properties, so that they can exert their respective characteristics, the yarn structure is optimized, and the yarn quality is better.

Contents of the invention

The purpose of the present invention is to provide a kind of production method of apocynum/long-staple cotton blended yarn, make apocynum fiber and long-staple cotton fiber complementary optimization, to fuse the antibacterial health care function of apocynum, and the moisture absorption and breathability of long-staple cotton properties, so that they can exert their respective characteristics, the yarn structure is optimized, and the yarn quality is better.

In order to achieve the above-mentioned purpose, realize the production of apocynum/long-staple cotton blended yarn, the present invention adopts following production method, comprises the following steps:

The first step is to pre-open the apocynum fibers, add 3% warm water solution of oil, and store them for 24 hours;

In the second step, the long-staple cotton is made into cotton slivers through the cleaning and carding process;

In the third step, the raw cotton sliver is shredded and mixed with the treated apocynum fiber according to the ratio of apocynum/long-staple cotton 35/65;

In the fourth step, the mixed apocynum/long-staple cotton is opened and cleaned according to the cotton spinning process, the carding process, the combing process, the three drawing processes, the roving process and the spun process to obtain the apocynum/long-staple cotton blend yarn.

Adopt above-mentioned production technology, can make apocynum and long-staple cotton fiber into the blended yarn with good yarn quality, especially the third step wherein mixes apocynum fiber and long-staple cotton fiber in a certain proportion, and the first step In four steps, the mixed apocynum/long-staple cotton is opened and cleaned according to the cotton spinning process, the carding process, the combing process, the three drawing processes, the roving process and the spun process to obtain the apocynum/long-staple cotton blended yarn , optimizing the yarn structure.

The technical scheme that technique of the present invention is further improved is as follows:

Preferably, in the first step, apocynum is pre-opened on the waste cotton processing machine, and the process parameters of the opening machine are appropriately adjusted to interrupt part of the ultra-long fibers, improve the degree of fiber separation, and reduce the amount of apocynum in the spinning process. Consumption, after opening, oil and moisten, add 3% oil agent warm water solution, oil agent is composed of cohesive agent, antistatic agent and softener, store up for 24 hours.

Because the length of apocynum fiber varies greatly and there are certain parallel fibers and ultra-long fibers, adopting the above optimization process can make apocynum suitable for production on cotton spinning equipment, and at the same time, oiling and moistening apocynum can reduce the fiber density. Stiffness, reduce the winding phenomenon caused by static electricity, enhance cohesion, and improve spinnability.

Preferably, in the second step, the long-staple cotton slivers are obtained by using the cleaning and carding process; in the cleaning and carding process, the beaters of the reciprocating plucking machine intermittently drop by 1.5-2mm, and the speed of the catching beaters is 1000-1100r/ min, the rotation speed of the corner nail beater of the single axial flow opener is 600-700r/min, the rotation speed of the cotton equalizing roller of the multi-compartment blending machine is 650-750r/min, the rotation speed of the stripping roller is 500-600r/min, and the porcupine opener The blade speed is 450-500rpm, the feeding roller speed is 42-48rmp, the card cylinder speed is 330-450r/min, the licker-in speed is 950-1050r/min, and the flat line speed is 80-130mm/min. The speed of the doffer is 45-50r/min, and the basis weight of the raw sliver is 17.5-32.5g/5m.

More preferably, in the second step, the blowing-carding process adopts the process principle of "fine cotton pickling, early falling and less crushing, full mixing, and less fiber damage".

Preferably, in the third step, the cotton sliver is shredded, and then mixed with the treated apocynum fiber according to the ratio of apocynum/long-staple cotton 35/65, and the mixing ratio design value of apocynum feeding is adopted. 5% higher.

In the process of mixing the raw cotton sliver with the treated apocynum fiber according to the ratio of apocynum/long-staple cotton 35/65, it is proved by experiments that the content of apocynum is controlled between 10%-40%. Yarn quality is in acceptable range, for fully embodying the characteristic of apocynum fiber, the present invention suitably selects apocynum/long-staple cotton to mix by the ratio of 35/65, simultaneously according to the requirement of blending ratio, considers that apocynum in actual production The loss of hemp is larger than that of cotton. Through practice, the feeding of apocynum is 5% higher than the designed mixing ratio by using bag mixing.

Preferably, in the fourth step, the laps are obtained by using the opening and cleaning process. In the opening and cleaning process, the beaters of the disc bale bale drop by 2-1.5mm each time, and the speed of the card needle beaters of the opener is 400- 500r/min, the distance between the cleaner and the feeding roller is 10-11mm, the speed of the lap roller is 9-11r/min, the length of the lap is 36-38m, and the basis weight of the lap is 360-380g/m.

More preferably, in the fourth step, the process of opening and cleaning cotton adopts the process principle of "fine cotton picking, less or no falling, beating with a comb belt, and less fiber damage".

Preferably, in the fourth step, a carding process is used to obtain carded sliver. In the carding process, the cylinder speed is 320-340r/min, the cover plate speed is 170-180m/min, and the licker-in speed is 840-340r/min. 860r/min, the doffer speed is 16-21r/min, the cylinder-cover plate five-point intervals are 0.23mm, 0.20mm, 0.18mm, 0.18mm, 0.20mm respectively, and the feeding plate-licker-in roller intervals are 0.23-0.25 mm, the cylinder-licker-in gauge is 0.20-0.22mm, the cylinder-doffer gauge is 0.13-0.15mm, and the raw sliver weight is 18-20g/5m.

More preferably, in the fourth step, the carding process adopts the process principle of "slow speed, high speed ratio, more combing, less damage and less shedding".

In the above-mentioned carding process, in order to reduce the damage of the licker-in roller to the apocynum fiber, the gauge between the licker-in roller and the cotton feeding plate is appropriately enlarged, and the speed of the licker-in roller is reduced. At the same time, in order to reduce the generation of neps and hemp neps, the distance between the cylinder and the cover plate should be as small as possible. In addition, in order to fully remove the short fibers in the apocynum and the fine impurities in the raw cotton, the speed of the cover plate should be increased appropriately.

Preferably, in the fourth step, a combed sliver is obtained by using a combing process, and the combing process adopts a method of retreating to feed cotton. The length is 4.2-4.6mm, the noil rate is controlled between 12%-15%, and the basis weight of the combed sliver is 16.6-18.26g/5m.

Preferably, in the fourth step, the cooked sliver is obtained by using three drawing processes, the three drawing processes comprising the first drawing process, the second drawing process and the three drawing processes, the first drawing process In the stripping process, the line speed of the front roller is 155-165m/min, 8 raw slivers are merged, the total draft ratio is 7.8-8.5 times, the draft ratio in the rear area is 1.73 times, the basis weight of the first drawing is 17.0g/5m, and the trumpet The mouth diameter is 3.6mm. In the above-mentioned two-pass drawing process, the front roller line speed is 150-160m/min, and 8 head passes are drawn and merged. The total draft ratio is 8.19 times, and the rear zone draft ratio is 1.4 times. , the weight of the second drawing frame is 16.6g/5m, and the diameter of the bell mouth is 3.4mm; in the three drawing processes, the front roller line speed is 150-160m/min, 8 second drawing frames are combined, and the total pulling The draw ratio is 8.3 times, the draft ratio in the rear area is 1.22 times, the drawing weight of the head is 16g/5m, and the bell mouth diameter is 3.2mm.

More preferably, in the fourth step, the three drawing processes adopt the process principle of "small gauge, light weight, slow speed, and smooth drafting".

In the above-mentioned drawing process, in order to ensure that the fibers are mixed evenly, the drawing adopts the method of combining 8 fibers in the three passes, adopts the drafting along the way, and the first and second merging adopt a total draft ratio smaller than that of the final merging. The drafting ratio is smaller than that of the first and second parallels. The first parallel adopts a larger drafting ratio in the rear area, and the finishing adopts the method of concentrating the drafting in the front area to improve the straightening parallelism of the fibers and the evenness of the cooked sliver. Degree is the main factor.

Preferably, in the fourth step, the roving process is used to obtain the roving. In the roving process, the weight is 4-5g/10m, the front roller speed is 160-180r/min, and the flyer speed is 640-700r/min. The center distance between the middle roller and the middle roller is 49mm, the center distance between the middle roller and the rear roller is 50mm, the draft ratio in the rear area is 1.2 times, the total draft ratio is 6.4-8 times, the nip is 8.5mm, and the twist coefficient is 110.

More preferably, in the fourth step, the roving process adopts the process principle of "low spindle speed, small tension, small rear draft, and large twist".

In the above roving process, in order to control the elongation of the roving and reduce the accidental elongation, a larger roving twist coefficient and a smaller tension are adopted to reduce the accident of the sliver without affecting the falling of the sliver and smooth driving. draft.

Preferably, in the fourth step, the apocynum/long-staple cotton blended yarn is obtained by the spun yarn process. In the spun yarn process, a four-roller grid ring type compact spinning ring spinning frame is adopted, and the twist coefficient of the yarn is 350- 390, the center distance between the front roller and the middle roller is 43-45mm, the center distance between the middle roller and the rear roller is 50-60mm, the spindle speed is 9000-11000r/min, the jaw gap is 2.5mm, and the medium-hard antistatic glue is selected The roller is equipped with a self-lubricating steel ring. The cradle pressure of the front rubber roller, middle rubber roller and rear rubber roller is 240N/double spindle, 160N/double spindle, 200N/double spindle respectively, and the accumulation negative pressure is 1800Pa-2100Pa.

More preferably, in the fourth step, the spinning process adopts the process principle of "tight gauge, heavy pressure".

Advantage and beneficial effect of the present invention are:

Apocynum and long-staple cotton are made into a good-quality blended yarn, which optimizes the complementation of apocynum fiber and long-staple cotton fiber, combines the antibacterial and health-care functions of apocynum and the moisture absorption and breathability of long-staple cotton, and is suitable for For the development of antibacterial health care, healthy and comfortable textiles.

detailed description

Below in conjunction with embodiment the present invention is done in further detail. However, the invention is not limited to the examples given.

Example

Take the production of 14.5tex apocynum/long-staple cotton blended yarn on the QFA1528 compact spinning frame as an example. Warehouse health preservation for 24 hours; the long-staple cotton is made into raw cotton slivers through the cleaning and carding process; the cotton raw slivers are shredded and mixed with the treated apocynum fiber according to the ratio of apocynum/long-staple cotton 35/65; The blended apocynum/long-staple cotton is subjected to a cleaning process, a carding process, a combing process, three drawing processes, a roving process and a spun process according to the cotton spinning process to prepare the apocynum/long-staple cotton blended yarn.

(1) Pre-open the apocynum on the waste cotton processing machine, properly adjust the process parameters of the opening machine, and interrupt some super long fibers. Oil and moisten after opening, add 3% warm water solution of oil agent, oil agent is composed of cohesive agent, antistatic agent and softener, keep in storage for 24 hours.

(2) Long-staple cotton cleaning and carding process: reciprocating plucking machine beaters drop 2mm intermittently, the speed of catching beaters is 1050r/min, the speed of corner nail beaters of single-axial flow opener is 650r/min, multi-bin cotton blending machine The rotating speed of the equalizing roller is 700r/min, the rotating speed of the stripping roller is 550r/min, the rotating speed of the blade of the porcupine opener is 475rpm, the rotating speed of the feeding roller is 45rmp, the rotating speed of the cylinder of the carding machine is 400r/min, and the rotating speed of the licker-in roller is 1000r /min, the linear speed of the cover plate is 110mm/min, the speed of the doffer is 48r/min, and the basis weight of the raw sliver is 20g/5m.

(3) After shredding the raw cotton sliver, mix it with the treated apocynum fiber according to the ratio of apocynum/long-staple cotton 35/65, and adopt package mixing, and the mixing ratio of apocynum feeding is 5% higher than the design value.

(4) Cotton opening and cleaning process: the beater of the disc plucker drops 2mm each time, the speed of the card needle beater of the cotton opener is 450r/min, the distance between the beater of the cotton cleaning machine and the cotton feeding roller is 11mm, and the speed of the roll roller 11r/min, lap length 38m, lap weight 380g/m.

(5) Carding process: the cylinder speed is 330r/min, the cover plate speed is 170m/min, the licker-in roller speed is 850r/min, the doffer speed is 19r/min, and the cylinder-cover plate five-point spacing is 0.23 mm, 0.20mm, 0.18mm, 0.18mm, 0.20mm, feed panel-licker-in roller gauge is 0.23mm, cylinder-licker-in roller gauge is 0.21mm, cylinder-doffer gauge is 0.15mm, raw sliver weight is 19g/5m.

(6) Combing process: backward feeding mode, the speed of the machine is 215-255 pincers/min, the length of feeding is 4.4mm, the noil rate is controlled at about 13%, and the quantitative value of combed sliver is 18g/5m.

(7) Three drawing frames: in the first drawing frame process, the front roller line speed is 165m/min, 8 raw slivers are merged, the roller gauge is 8×12mm, the total draft ratio is 8.47 times, and the rear area draft The drawing ratio is 1.73 times, the basis weight of the first drawing frame is 17.0g/5m, and the bell mouth diameter is 3.6mm; is 8.19 times, the draft ratio in the back area is 1.4 times, the weight of the second drawing frame is 16.6g/5m, and the bell mouth diameter is 3.4mm; in the third drawing process, the front roller line speed is 160m/min, 8 The draws are merged, the total draft ratio is 8.05 times, the draft ratio in the back zone is 1.22 times, the weight of the three draw frames is 16.5g/5m, and the bell mouth diameter is 3.2mm.

(8) Roving process: the roving weight is 4.8g/10m, the front roller speed is 160r/min, the flyer speed is 680r/min, the center distance between the front roller and the middle roller is 49mm, and the center distance between the middle roller and the rear roller is 50mm. The draft ratio in the rear area is 1.2 times, the total draft ratio is 6.875 times, the jaw is 8.5 mm, and the twist coefficient is 110.

(9) Spinning process: adopt four-roller grid ring type compact spinning ring spinning machine, the yarn density is 14.5tex, the yarn twist coefficient is 390, the center distance between the front roller and the middle roller is 44mm, and the center distance between the middle roller and the back roller is The pitch is 52mm, the spindle speed is 10000r/min, the nip gap is 2.5mm, medium-hard antistatic treatment rubber rollers are selected, and self-lubricating steel rings are configured. The cradle pressures of the front rubber roller, middle rubber roller and rear rubber roller are respectively 240N/double ingot, 160N/double ingot, 200N/double ingot, the accumulation negative pressure is 1900Pa.

After testing, the various indicators of producing apocynum/long-staple cotton blended yarn according to the above method are as follows:

Claims (5)

1. a production method for bluish dogbane/staple cotton blended yarn line, is characterized in that: comprise the following steps:

The first step, carries out pre-shredding by apocynum fibre, and adds the finish warm water solution of 3%, heap storage health 24 hours;

Second step, obtains the cotton carded sliver by long-staple cotton through Blowing carding operation;

3rd step, mixes with the ratio of treated apocynum fibre according to bluish dogbane/long-staple cotton 35/65 after being discerped by the cotton carded sliver;

4th step, obtains bluish dogbane/staple cotton blended yarn line by mixed bluish dogbane/long-staple cotton by cotton spinning flow process opening and cleaning step, carding step, combing process, three road mixing in doubling step, Roving Frames and spinning process.

2. the production method of a kind of bluish dogbane/staple cotton blended yarn line according to claim 1, it is characterized in that: in the first step, cotton waste processor carries out pre-shredding to bluish dogbane, and suitably the technological parameter of adjustment shredding machinery, interrupts part overcut fibre, improve fibre separation index, reduce the consumption of bluish dogbane in spinning process, oil supply dewing after shredding, adds the finish warm water solution of 3%, finish is made up of obvolvent agent, antistatic additive and softener, heap storage health 24 hours.

3. the production method of a kind of bluish dogbane/staple cotton blended yarn line according to claim 1, is characterized in that: in second step, adopts Blowing carding operation to obtain the long-staple cotton carded sliver, the technological principle that described Blowing carding operation adopts " select content, caducous few broken, abundant mixing, hinder fiber less ", in described Blowing carding operation, reciprocation bale plucker hired roughneck interval declines 1.5-2mm, grabbing cotton hired roughneck's rotating speed is 1000-1100r/min, Single axial waste silk opener brad hired roughneck rotating speed is 600-700r/min, multi-mixer evener roller rotating speed is 650-750r/min, pattern doffing roller rotating speed is 500-600r/min, porcupine opener rotating speed of flail is 450-500rpm, feed roll motor rotating speed is 42-48rmp, breast swift rotating speed is 330-450r/min, licker-in rotating speed is 950-1050r/min, cover plate linear velocity is 80-130mm/min, doffing speed is 45-50r/min, weight of card sliver is 17.5-32.5g/5m.

4. the production method of a kind of bluish dogbane/staple cotton blended yarn line according to claim 1, it is characterized in that: in the 3rd step, the cotton carded sliver is discerped, then mix with the ratio of treated apocynum fibre according to bluish dogbane/long-staple cotton 35/65, adopt bag mixed, the mixed design load frequently that bluish dogbane feeds intake exceeds 5%.

5. the production method of a kind of bluish dogbane/staple cotton blended yarn line according to claim 1, it is characterized in that: in the 4th step, opening and cleaning step is adopted to obtain lap, described opening and cleaning step adopts " select content, fall less or do not fall, beat to comb band, hinder fiber less " technological principle, in described opening and cleaning step, disc bale plucker hired roughneck declines 2-1.5mm at every turn, opener kirschner beater speed is 400-500r/min, the 10-11mm that spaces between scutcher hired roughneck and feed roll motor, rolling roller rotating speed 9-11r/min, lap length 36-38m, cotton rolling quantity 360-380g/m, carding step is adopted to obtain the carded sliver, described carding step adopts " jogging speed, large speed ratio, many combs hinder less few fall " technological principle, in described carding step, cylinder speed is 320-340r/min, cover plate speed is 170-180m/min, licker-in speed is 840-860r/min, doffer speed is 16-21r/min, cylinder-cover plate 5 spaces and is respectively 0.23mm, 0.20mm, 0.18mm, 0.18mm, 0.20mm, space for 0.23-0.25mm to panel-licker-in, cylinder-licker-in spaces for 0.20-0.22mm, cylinder-doffer is spaced for 0.13-0.15mm, weight of card sliver is 18-20g/5m, adopt combing process to obtain yarn, described combing process adopts the mode retreated to cotton, in described combed cotton operation, the speed of a motor vehicle is 215-255 pincers/min, be 4.2-4.6mm to cotton length, linters rate controls between 12%-15%, and yarn is quantitatively 16.6-18.26g/5m, three road mixing in doubling step are adopted to obtain ripe bar, described three road mixing in doubling step comprise slubbing mixing in doubling step, two road mixing in doubling step and three road mixing in doubling step, described three road mixing in doubling step adopt " close setting, quantitatively light, jogging speed, along drawing-off " technological principle, in described slubbing mixing in doubling step, front roller linear velocity is 155-165m/min, 8 carded slivers also close, total draft multiple 7.8-8.5 doubly, back zone drafting multiple 1.73 times, the quantitative 17.0g/5m of slubbing drafting, horn mouth diameter 3.6mm, in described two road mixing in doubling step, front roller linear velocity is 150-160m/min, 8 slubbing draftings also close, total draft multiple is 8.19 times, back zone drafting multiple is 1.4 times, two road draftings are quantitatively 16.6g/5m, horn mouth diameter is 3.4mm, in described three road mixing in doubling step, front roller linear velocity is 150-160m/min, and 8 two road draftings also close, and total draft multiple is 8.3 times, and back zone drafting multiple is 1.22 times, the quantitative 16g/5m of slubbing drafting, horn mouth diameter 3.2mm.