CN105420865A - Elastic filament production method - Google Patents
Elastic filament production method Download PDFInfo
- Publication number
- CN105420865A CN105420865A CN201511010031.6A CN201511010031A CN105420865A CN 105420865 A CN105420865 A CN 105420865A CN 201511010031 A CN201511010031 A CN 201511010031A CN 105420865 A CN105420865 A CN 105420865A
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- long filament
- filament
- production method
- twist
- twisting
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- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
- D02G1/02—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by twisting, fixing the twist and backtwisting, i.e. by imparting false twist
-
- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02J—FINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS, ROPES OR THE LIKE
- D02J13/00—Heating or cooling the yarn, thread, cord, rope, or the like, not specific to any one of the processes provided for in this subclass
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
Abstract
The invention provides an elastic filament production method. According to the production method, through unwinding processing, twisting and drawing, a protofilament is deformed, and by use of primary heating and heating shaping, internal stress generated inside the protofilament is removed, so that the finally obtained filament is excellent in elasticity and fineness. Experiment results prove that the fineness of the filament produced by the invention is 24-28 dtex/72f, the tension of the filament is 18-25 cN, and the quantity of holes is 20-100. In addition, the filament is excellent in strength and breaking elongation property; results of embodiments of the invention show that the produced filament is 3.2-4.2 cN/tex in strength and 10-25% in elongation at break.
Description
Technical field
The present invention relates to spining technology field, particularly a kind of production method of elastic force long filament.
Background technology
Long filament is also known as continuous filament yarn, and being the very long strand of continuous length, is a class of chemical fibre form.In chemical fibre manufacture process, spin fluid is extruded from spinneret orifice continuously, is frozen into silk through Air flow or in coagulating bath, becomes continuously strand, and then drawn, twisting, or the aft-loaded airfoil operation such as distortion is for further processed and applied.Chemical fiber filament is widely used in various clothing, ornament and other branchs of industry.
Porous, super fine denier elastic force long filament are the one in long filament, because its filament number is little, tow radical is many, makes fabric have more excellent feel and drapability, natural in color, dyeing is balanced, comfortable softness, good springiness, good permeability, thoroughly improve the wearability of fiber product, become the important textile raw material with very high additive value.
Prior art obtains porous, super fine denier elastic force long filament mainly through simply stretching.Although the porous that prior art prepares, super fine denier elastic force long filament can meet certain demand, need special elastomeric field at certain, the elasticity of porous, super fine denier elastic force long filament still can not be met the need of market.
Summary of the invention
The object of the present invention is to provide a kind of production method of elastic force long filament, the long filament that the present invention prepares has excellent elasticity.
Technical scheme of the present invention is as follows:
The invention provides a kind of production method of elastic force long filament, comprise the following steps:
Raw material long filament is carried out unwinding process;
Long filament after described unwinding process is heated first;
Until described in first heating after long filament cooling after, long filament is twisted;
Long filament after described twisting is carried out drawing-off;
Long filament after described drawing-off is carried out heat-shaping, obtains elastic force long filament.
Preferably, described raw material long filament is one or more in terylene pre-oriented fiber, polyamide fibre pre-oriented yarn and polypropylene fibre pre-oriented yarn.
Preferably, the filament diameter of described terylene pre-oriented fiber is 0.01 ~ 0.03mm;
The filament diameter of described polyamide fibre pre-oriented yarn is 0.015 ~ 0.025mm;
The filament diameter of described polypropylene fibre pre-oriented yarn is 0.02 ~ 0.032mm.
Preferably, the fineness of described raw material long filament is 20 ~ 35dtex/72f.
Preferably, the backing-off performance index of described unwinding is 30 ~ 40, and unwinding tension is 10 ~ 20cN.
Preferably, the described temperature heated first is 160 ~ 180 DEG C, and the time is 10 ~ 25s.
Preferably, the temperature of described cooling is 5 ~ 35 DEG C.
Preferably, add described in and be twisted as two bursts of twisting, first burst of forward twisting, second strand of twist against twist;
The twist of described forward twisting is 100 ~ 150/10cm;
The twist of described twist against twist is 60 ~ 120/10cm.
Preferably, described drafting rate is 4300 ~ 5000m/min.
Preferably, the temperature of described heat-shaping is 200 ~ 250 DEG C, and the time is 10 ~ 20s.
The invention provides a kind of production method of elastic force long filament, comprise the following steps: raw material long filament is carried out unwinding process; Long filament after described unwinding process is heated first; Until described in first heating after long filament cooling after, long filament is twisted; Long filament after described twisting is carried out drawing-off; Long filament after described drawing-off is carried out heat-shaping, obtains elastic force long filament.Method provided by the invention makes precursor generation deformation by unwinding process, twisting and drawing-off, and eliminated by the internal stress that heating and heat-shaping make precursor inside produce first, the long filament finally obtained has excellent elasticity and fineness.Through verification experimental verification, the filament fineness that the present invention obtains is 24 ~ 28dtex/72f, and tension force is 18 ~ 25cN, and hole count is 20 ~ 100 holes.In addition, the long filament that the present invention obtains also has good intensity and extension at break performance, and the result of the embodiment of the present invention also shows, the intensity of the long filament obtained is 3.2 ~ 4.2cN/tex, and elongation at break is 10 ~ 25%.
Detailed description of the invention
The invention provides a kind of production method of elastic force long filament, comprise the following steps:
Raw material long filament is carried out unwinding process;
Long filament after described unwinding process is heated first;
Until described in first heating after long filament cooling after, long filament is twisted;
Long filament after described twisting is carried out drawing-off;
Long filament after described drawing-off is carried out heat-shaping, obtains elastic force long filament.
The present invention carries out unwinding process to raw material long filament.In the present invention, described raw material long filament is preferably one or more in terylene pre-oriented fiber, polyamide fibre pre-oriented yarn and polypropylene fibre pre-oriented yarn; The fineness of described raw material long filament is preferably 20 ~ 35dtex/72f, is more preferably 22 ~ 32dtex/72f, most preferably is 25 ~ 30dtex/72f.In the present invention, the filament diameter of described terylene pre-oriented fiber is preferably 0.11 ~ 0.35mm, is more preferably 0.15 ~ 0.30mm, most preferably is 0.20 ~ 0.25mm; The filament diameter of described polyamide fibre pre-oriented yarn is preferably 0.15 ~ 3.0mm, is more preferably 0.17 ~ 0.28mm, most preferably is 0.20 ~ 0.25mm; The filament diameter of described polypropylene fibre pre-oriented yarn is preferably 0.08 ~ 2.0mm, is more preferably 0.17 ~ 0.28mm, most preferably is 0.20 ~ 0.25mm.The source of the present invention to described raw material long filament does not have particular/special requirement, and described raw material long filament can be specially commercially available prod in embodiments of the present invention.
In the present invention, the backing-off performance index of described unwinding is preferably 30 ~ 40, is more preferably 32 ~ 38, most preferably is 34 ~ 36; The unwinding tension of described unwinding is preferably 10 ~ 20cN, is more preferably 12 ~ 18cN, most preferably is 14 ~ 16cN.
The present invention does not have particular/special requirement to the equipment that described unwinding uses, and adopts unwinding device well known to those skilled in the art to carry out unwinding.In embodiments of the present invention, described unwinding is specially the unwinding being realized raw material long filament by godet roller; Described godet roller device is single removable godet roller device, is equipped with the rare earth permanent-magnet synchronization motor drive of high reliability, is also provided with anti-dazzle apparatus to reduce operator's visual fatigue, and configuration high-strength aluminum alloy crossbeam is to reduce resonance.
Long filament after described unwinding process heats by the present invention first.In the present invention, the described temperature heated first is preferably 160 ~ 180 DEG C, is more preferably 165 ~ 175 DEG C, most preferably is 168 ~ 172 DEG C; The described time of heating first is preferably 10 ~ 25s, is more preferably 13 ~ 22s, most preferably is 15 ~ 20s.
The present invention does not have particular/special requirement to the described concrete mode heated first, adopts mode of heating well known to those skilled in the art to carry out heating.In embodiments of the present invention, described heating is first specially heats upper for silk introducing hot case with Pneumatic stringing device, and described hot case is 16 energy-saving hot casees in road, control accuracy≤± 0.5 DEG C.
Until described in first heating after long filament cooling after, the present invention twists long filament.In the present invention, the temperature of described cooling is preferably 5 ~ 35 DEG C, is more preferably 10 ~ 30 DEG C, most preferably is 15 ~ 25 DEG C.The concrete mode of the present invention to described cooling does not have particular/special requirement, is preferably nature cooling.In embodiments of the present invention, described cooling is specially the long filament after by heating first and introduces multifibres road cooling device, places cooling.
In the present invention, described twisting is preferably two bursts of twisting, first burst of forward twisting in preferred described two bursts of twisting, second strand of twist against twist.In the present invention, the twist of described forward twisting is preferably 100 ~ 150/10cm, is more preferably 110 ~ 140/10cm, most preferably is 120 ~ 130/10cm; The twist of described twist against twist is preferably 60 ~ 120/10cm, is more preferably 70 ~ 100/10cm, most preferably is 80 ~ 90/10cm.
Long filament after described twisting is carried out drawing-off by the present invention.In the present invention, described drafting rate is 4300 ~ 5000m/min, is more preferably 4400 ~ 4800m/min, most preferably is 4500 ~ 4700m/min.
The concrete mode of the present invention to described drawing-off does not have particular/special requirement, adopts drafting system well known to those skilled in the art to carry out drawing-off.In embodiments of the present invention, described drawing-off is specially by godet roller initiatively drafting; Described godet roller device is single removable godet roller device, is equipped with the rare earth permanent-magnet synchronization motor drive of high reliability, is also provided with anti-dazzle apparatus to reduce operator's visual fatigue, and configuration high-strength aluminum alloy crossbeam is to reduce resonance.
Long filament after described drawing-off is carried out heat-shaping by the present invention, obtains elastic force long filament.In the present invention, the temperature of described heat-shaping is preferably 200 ~ 250 DEG C, is more preferably 210 ~ 240 DEG C, most preferably is 220 ~ 230 DEG C; The time of described heat-shaping is preferably 10 ~ 20s, is more preferably 12 ~ 18s, most preferably is 13 ~ 16s.
The concrete mode of the present invention to described heat-shaping does not have particular/special requirement, adopts mode of heating well known to those skilled in the art to carry out heating.In embodiments of the present invention, under described heat-shaping is specially and is introduced by silk with Pneumatic stringing device, hot case heats, and described lower hot case is 16 energy-saving hot casees in road, control accuracy≤± 0.5 DEG C.
After obtaining described elastic force long filament, the present invention preferably reels to the described elastic force long filament obtained, and long filament is made silk volume.In the present invention, the speed of described winding is preferably 1000 ~ 3500m/min, is more preferably 1500 ~ 3000m/min, most preferably is 2000 ~ 2500m/min; The winding angle of described winding is preferably 5 ~ 7 degree, and in the specific embodiment of the invention, described winding angle can be specially 5 degree, 6 degree or 7 degree; The over feed rate(OFR) of described winding preferably≤2%, in the specific embodiment of the invention, described over feed rate(OFR) can be specially≤2% ,≤1.5% or≤1%.
The invention provides a kind of production method of elastic force long filament, comprise the following steps: raw material long filament is carried out unwinding process; Long filament after described unwinding process is heated first; Until described in first heating after long filament cooling after, long filament is twisted; Long filament after described twisting is carried out drawing-off; Long filament after described drawing-off is carried out heat-shaping, obtains elastic force long filament.Method provided by the invention makes precursor generation deformation by unwinding process, twisting and drawing-off, and eliminated by the internal stress that heating and heat-shaping make precursor inside produce first, the long filament finally obtained has excellent elasticity and fineness.Through verification experimental verification, the filament fineness that the present invention obtains is 24 ~ 28dtex/72f, and tension force is 18 ~ 25cN, and hole count is 20 ~ 100 holes.In addition, the long filament that the present invention obtains also has good intensity and extension at break performance, and the result of the embodiment of the present invention also shows, the intensity of the long filament obtained is 3.2 ~ 4.2cN/tex, and elongation at break is 10 ~ 25%.
Below in conjunction with the embodiment in the present invention, the technical scheme in the present invention is clearly and completely described.Obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Embodiment 1
Selection filament diameter is 0.11mm, and the fineness of pre-oriented yarn is that the terylene pre-oriented fiber of 20dtex/72f is as raw material long filament.
Raw material long filament carries out unwinding under the effect of godet roller, and described unwinding index is 30, unwinding tension is 10cN.
Energy-saving hot case long filament after unwinding being introduced 16 roads carries out heat treated first, and the temperature of this hot case is 160 DEG C, and heat time heating time is 10s.
The long filament obtained after heat treated is first introduced the cooling device in multifibres road, shelve nature cooling.
Carry out two bursts of twisting process to the complete long filament of cooling, first burst of forward twisting, the twist is 100/10cm; Second strand of twist against twist, the twist is 60/10cm.
With godet roller, under the speed of 4300m/min, drawing-off is carried out to the long filament after twisting.
Energy-saving hot case long filament after drawing-off being introduced 16 roads carries out heat-shaping process, and the temperature of this hot case is 200 DEG C, and heat time heating time is 10s.
To obtain elastic force long filament reels with the winding speed of 1000m/min, the winding angle of 5 degree and the over feed rate(OFR) of 1%, long filament is made silk volume.
According to standard GB/T16604-2008: the relevant record of " polyester industrial filament yarn " carries out Performance Detection to the long filament that the present embodiment obtains, and testing result is as shown in table 1 below.
Table 1 embodiment 1 obtains the performance test results of long filament
| Project | Result |
| Fineness | 28.3dtex/72f |
| Fracture strength | 3.77cN/tex |
| Tension force | 22.4cN |
| Elongation at break | 15.9％ |
| Hole count | 98 holes |
Known according to table 1, the long filament that the present embodiment obtains has good fineness, tension force, fracture strength and extension at break performance.
Embodiment 2
Selection filament diameter is 1.11mm, and the fineness of pre-oriented yarn is that the polyamide fibre pre-oriented yarn of 25dtex/72f is as raw material long filament.
Raw material long filament carries out unwinding under the effect of godet roller, and described unwinding index is 35, unwinding tension is 15cN.
Energy-saving hot case long filament after unwinding being introduced 16 roads carries out heat treated first, and the temperature of this hot case is 170 DEG C, and heat time heating time is 15s.
The long filament obtained after heat treated is first introduced the cooling device in multifibres road, shelve nature cooling.
Carry out two bursts of twisting process to the complete long filament of cooling, first burst of forward twisting, the twist is 120/10cm; Second strand of twist against twist, the twist is 90/10cm.
With godet roller, under the speed of 4600m/min, drawing-off is carried out to the long filament after twisting.
Energy-saving hot case long filament after drawing-off being introduced 16 roads carries out heat-shaping process, and the temperature of this hot case is 220 DEG C, and heat time heating time is 15s.
To obtain elastic force long filament reels with the winding speed of 2000m/min, the winding angle of 6 degree and the over feed rate(OFR) of 1.5%, long filament is made silk volume.
According to standard FZ/T54044-2011: the relevant record of " polyamide fibre 6 industrial filament " carries out Performance Detection to the long filament that the present embodiment obtains, and testing result is as shown in table 2 below.
Table 2 embodiment 2 obtains the performance test results of long filament
| Project | Result |
| Fineness | 26.9dtex/72f |
| Fracture strength | 3.58cN/tex |
| Tension force | 24.8cN |
| Elongation at break | 18.6％ |
| Hole count | 95 holes |
Known according to table 2, the long filament that the present embodiment obtains has good fineness, tension force, fracture strength and extension at break performance.
Embodiment 3
Selection filament diameter is 2.0mm, and the fineness of pre-oriented yarn is that the polypropylene fibre pre-oriented yarn of 35dtex/72f is as raw material long filament.
Raw material long filament carries out unwinding under the effect of godet roller, and described unwinding index is 40, unwinding tension is 20cN.
Energy-saving hot case long filament after unwinding being introduced 16 roads carries out heat treated first, and the temperature of this hot case is 180 DEG C, and heat time heating time is 25s.
The long filament obtained after heat treated is first introduced the cooling device in multifibres road, shelve nature cooling.
Carry out two bursts of twisting process to the complete long filament of cooling, first burst of forward twisting, the twist is 150/10cm; Second strand of twist against twist, the twist is 120/10cm.
With godet roller, under the speed of 5000m/min, drawing-off is carried out to the long filament after twisting.
Energy-saving hot case long filament after drawing-off being introduced 16 roads carries out heat-shaping process, and the temperature of this hot case is 250 DEG C, and heat time heating time is 20s.
To obtain elastic force long filament reels with the winding speed of 3500m/min, the winding angle of 7 degree and the over feed rate(OFR) of 2%, long filament is made silk volume.
According to standard FZ/T54009-1999: the relevant record of " polypropylene fibre elastic filament " carries out Performance Detection to the long filament that the present embodiment obtains, and testing result is as shown in table 3 below.
Table 3 embodiment 3 obtains the performance test results of long filament
| Project | Result |
| Fineness | 27.6dtex/72f |
| Fracture strength | 4.23cN/tex |
| Tension force | 29.7cN |
| Elongation at break | 19.7％ |
| Hole count | 97 holes |
Known according to table 3, the long filament that the present embodiment obtains has good fineness, tension force, fracture strength and extension at break performance.
The present invention has also carried out the detection identical with above-described embodiment product to the elastic force long filament of certain brand on market, and testing result is as shown in table 4 below.
The performance test results of table 4 certain brand long filament existing
| Project | Result |
| Fineness | 35.9dtex/72f |
| Fracture strength | 1.39cN/tex |
| Tension force | 13.7cN |
| Elongation at break | 8.6％ |
| Hole count | 56 holes |
According to the testing result of above-mentioned table 1 ~ 4, the fineness of the long filament that the application obtains is well below the fineness of existing product, and fracture strength, tension force, elongation at break and hole count are far away higher than existing product.
The invention provides a kind of production method of elastic force long filament, comprise the following steps: raw material long filament is carried out unwinding process; Long filament after described unwinding process is heated first; Until described in first heating after long filament cooling after, long filament is twisted; Long filament after described twisting is carried out drawing-off; Long filament after described drawing-off is carried out heat-shaping, obtains elastic force long filament.Method provided by the invention makes precursor generation deformation by unwinding process, twisting and drawing-off, and eliminated by the internal stress that heating and heat-shaping make precursor inside produce first, the long filament finally obtained has excellent elasticity and fineness.Through verification experimental verification, the filament fineness that the present invention obtains is 24 ~ 28dtex/72f, and tension force is 18 ~ 25cN, and hole count is 20 ~ 100 holes.In addition, the long filament that the present invention obtains also has good intensity and extension at break performance, and the result of the embodiment of the present invention also shows, the intensity of the long filament obtained is 3.2 ~ 4.2cN/tex, and elongation at break is 10 ~ 25%.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (10)
1. a production method for elastic force long filament, comprises the following steps:
Raw material long filament is carried out unwinding process;
Long filament after described unwinding process is heated first;
Until described in first heating after long filament cooling after, long filament is twisted;
Long filament after described twisting is carried out drawing-off;
Long filament after described drawing-off is carried out heat-shaping, obtains elastic force long filament.
2. production method according to claim 1, is characterized in that, described raw material long filament is one or more in terylene pre-oriented fiber, polyamide fibre pre-oriented yarn and polypropylene fibre pre-oriented yarn.
3. production method according to claim 2, is characterized in that, the filament diameter of described terylene pre-oriented fiber is 0.01 ~ 0.03mm;
The filament diameter of described polyamide fibre pre-oriented yarn is 0.015 ~ 0.025mm;
The filament diameter of described polypropylene fibre pre-oriented yarn is 0.02 ~ 0.032mm.
4. the production method according to claims 1 to 3 any one, is characterized in that, the fineness of described raw material long filament is 20 ~ 35dtex/72f.
5. production method according to claim 1, is characterized in that, the backing-off performance index of described unwinding is 30 ~ 40, and unwinding tension is 10 ~ 20cN.
6. production method according to claim 1, is characterized in that, the described temperature heated first is 160 ~ 180 DEG C, and the time is 10 ~ 25s.
7. production method according to claim 1, is characterized in that, the temperature of described cooling is 5 ~ 35 DEG C.
8. production method according to claim 1, is characterized in that, described in add and be twisted as two bursts of twisting, first burst of forward twisting, second strand of twist against twist;
The twist of described forward twisting is 100 ~ 150/10cm;
The twist of described twist against twist is 60 ~ 120/10cm.
9. production method according to claim 1, is characterized in that, described drafting rate is 4300 ~ 5000m/min.
10. production method according to claim 1, is characterized in that, the temperature of described heat-shaping is 200 ~ 250 DEG C, and the time is 10 ~ 20s.
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| CN201511010031.6A CN105420865A (en) | 2015-12-31 | 2015-12-31 | Elastic filament production method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201511010031.6A CN105420865A (en) | 2015-12-31 | 2015-12-31 | Elastic filament production method |
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| CN105420865A true CN105420865A (en) | 2016-03-23 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107916472A (en) * | 2017-12-06 | 2018-04-17 | 湖南中泰特种装备有限责任公司 | A kind of online twisted filaments device and method |
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| US5965073A (en) * | 1995-08-08 | 1999-10-12 | John Brown Deutsche Engineering Gmbh | Process and device for producing polyester yarns |
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| CN107916472A (en) * | 2017-12-06 | 2018-04-17 | 湖南中泰特种装备有限责任公司 | A kind of online twisted filaments device and method |
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Application publication date: 20160323 |