CN101619505A - Production method of filament for capron 6 one-step full stretching superfine denier socks - Google Patents
Production method of filament for capron 6 one-step full stretching superfine denier socks Download PDFInfo
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- CN101619505A CN101619505A CN200910183258A CN200910183258A CN101619505A CN 101619505 A CN101619505 A CN 101619505A CN 200910183258 A CN200910183258 A CN 200910183258A CN 200910183258 A CN200910183258 A CN 200910183258A CN 101619505 A CN101619505 A CN 101619505A
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Abstract
The invention discloses a production method of filament for capron 6 one-step full stretching superfine denier socks, which is characterized by comprising the following steps: firstly, melting step: guiding capron 6 semi-dulling chip raw material into a screw extruder through a dry chip bin to be melted so that the raw material is in a melting state to form a spinning molten mass; secondly, spinning step: inputting the spinning molten mass into a spinning box body, spanning on a fine denier spinning winding machine through a spinneret plate and pressing into a component after measurement, and extruding and forming asspun fiber; thirdly, cooling step: cooling the asspun fiber by a lateral blowing air duct device through lateral blowing, an oil nozzle and a corridor; and fourthly, forming step: pretangling, R1 roller and a R2 roller hot stretching and hot shaping, tangling and drawing a cooled filament bundle, winding and forming and finally forming a finished spinning cake. The filament produced by adopting the method has better fiber density CV value, breaking strength, breaking strength CV value and breaking elongation CV value than that of high-quality filament.
Description
Technical field
The present invention relates to produce and knit socks long filament art, relate in particular to the production method of a kind of capron 6 one-step full stretching superfine denier socks with long filament.
Background technology
Domestic chinlon 6 filament production technology has two kinds at present, and the one, the conventional two-step method of UDY-DT.Its first step is produced the not drawing-off UDY spinning cake of reeling at spinning speed 800-1000m/min earlier, and second step was carried out the UDY spinning cake drawing-off about 3.6 times again, becomes the fully drafting of 2kg; The 2nd, the FDY one-step method.The technological process of FDY one-step method technology for high speed spinning is short, silk speed is high, output is high, uniform in quality, fracture strength height, device efficiency height, raw materials consumption is few, cost is low, is the update technology of the conventional two-step method of UDY-DT.But because process factors, the product of being produced also exists the line density irregularity of product and fracture strength and uneven rate of elongation is higher, the fiber uniformity is low shortcoming, can not be suitable for high-grade wrap yarn, woollen sweater and ultra-thin socks with silk.
Summary of the invention
The present invention is in order to overcome the problems referred to above that prior art exists, and a kind of capron 6 one-step full stretching superfine denier socks that the provides production method of long filament, this method is to look for optimum process parameters to form through technological transformation, suitable air-conditioning condition, the sieve of selection on existing thin dawn spinning machine, adopt this method can spin out the special-purpose long filament of ultra-thin bright high-grade socks, the high-grade socks of its production have the characteristics of " the obvious style of bony is endured, the anti-tearing of dimensionally stable ".
The technical solution used in the present invention is: capron 6 one-step full stretching superfine denier socks is characterized in the production method of long filament, may further comprise the steps:
(1) fusion step: polyamide fibre 6 half delustrings section raw material is melted in dried chip bunker importing screw extruder, make raw material be molten, become spinning melt;
(2) spinning step: with above-mentioned spinning melt input spinning manifold, after metering, be pressed in the assembly, extruding forms as-spun fibre;
(3) cooling step: above-mentioned as-spun fibre is cooled off through lateral blowing, oil nozzle, path;
(4) forming step: above-mentioned cooled tow is handled through pre-interlacing, R1 roller/R2 roller hot-stretch HEAT SETTING, interlacing, traction, and winding shaping forms the finished product spinning cake.
The above-mentioned capron 6 one-step full stretching superfine denier socks production method of long filament, wherein, the temperature in each district of screw extruder is respectively in the described fusion step: 185 ± 3 ℃ in a district, 210 ± 2 ℃ in two districts, 220 ± 2 ℃ in three districts, 218 ± 2 ℃ in four districts, 215 ± 1 ℃ in five districts, 216 ± 1 ℃ of extruder head temperature, screw rod extrusion pressure 9.5 ± 0.5MPa.
The above-mentioned capron 6 one-step full stretching superfine denier socks production method of long filament, wherein, in the described fusion step: polyamide fibre 6 half delustrings are done the moisture of section less than 300ppm, nitrogen (N
2) protection pressure (1-1.2) m
3/ hr;
The above-mentioned capron 6 one-step full stretching superfine denier socks production method of long filament, wherein, in the described spinning step: on thin dawn take-up winding, spray silk through spinnerets; Spinning body temperature is: (210-225) ± 1 ℃.The assembly proportioning is: steel sand 40 orders: steel sand 60 orders=3: 7, spinnerets Φ 0.25, L/D=3.0;
The above-mentioned capron 6 one-step full stretching superfine denier socks production method of long filament, wherein, in the described cooling step: dry to the silk that the side spinnerets is sprayed into by the lateral blowing air-duct apparatus: the slow cooling district height 150mm before the blowing, lateral blowing wind speed 0.45-0.42m/min; The air supply air-conditioner humiture is: 18 ± 1 ℃ of wind-warm syndrome, rheumatism 85 ± 5%RH; Inside and outside two pass oils, in the path as-spun fibre freezing point position apart from spinnerets distance 850 ± 20mm;
The above-mentioned capron 6 one-step full stretching superfine denier socks production method of long filament, wherein, in the described forming step: control pre-interlacing and press pneumatics power 0.15 ± 0.05MPa; R2 roller/R1 roller surface line speed ratio=1.6: 1; R1 roller, R2 roller heat setting temperature (165-178) ± 0.5 ℃; Interlacing is pressed pneumatics power 0.23 ± 0.05MPa; Winding speed 4780m/min; Shaping α angle (6-7) degree.
Because the present invention has adopted above technical scheme, by on thin dawn take-up winding, looking for optimum process parameters, can on spinning speed 4800m/min, spin out the special-purpose long filament of high-grade socks of " ultra-thin bright " through technological transformations such as " spinnerets ", " lateral blowing air-duct apparatus ", " air supply air-conditioner humiture ", " R2 and R1 speed ratio ", " shaping α angle ", suitable air-conditioning condition, the sieve of selection.Make the high-grade socks that are made into have the characteristics of " the obvious style of bony is endured, the anti-tearing of dimensionally stable ".
Description of drawings
Concrete characteristic performance of the present invention and advantage further describe by following examples and accompanying drawing thereof.
Fig. 1 is a process flow diagram of the present invention.
The specific embodiment
See also Fig. 1.Technological process of the present invention is: polyamide fibre 6 is done section 1 → chip bunker, 2 → screw extruder, 3 → melt spinning, 4 → lateral blowings cooling 5 → dewing 6 → heat-traction, 7 → network typing, 8 → coiling finished product 9 that oils.
A kind of polyamide fibre 6 of the present invention (one-step method) full stretching superfine denier socks production method of long filament, comprise the following steps: (1) fusion: with the fusing in " dried chip bunker " importing " screw extruder " of polyamide fibre 6 half delustrings section raw material, make raw material be molten, become spinning melt; (2) spinning: with above-mentioned spinning melt input " spinning manifold ", after metering, be pressed in the assembly, extruding forms " as-spun fibre "; (3) cooling: above-mentioned " as-spun fibre " cooled off through lateral blowing, oil nozzle, path; (4) be shaped: above-mentioned cooled tow is handled through pre-interlacing, R1 roller and R2 roller hot-stretch (HEAT SETTING), interlacing, traction, and winding shaping forms the finished product spinning cake.This production method is simple, and is easy to operate, and the comfortable flexibility of finished product strand is good, and gloss is glittering, constant product quality.
In fusion step of the present invention: the moisture of cutting into slices is done in polyamide fibre 6 half delustrings must be less than 300ppm, nitrogen (N
2) protection pressure (1-1.2) m
3/ hr; The temperature in each district of screw extruder is respectively: 185 ± 3 ℃ in a district, 210 ± 2 ℃ in two districts, 220 ± 2 ℃ in three districts, 218 ± 2 ℃ in four districts, 215 ± 1 ℃ in five districts, 216 ± 1 ℃ of extruder head temperature, screw rod extrusion pressure 9.5 ± 0.5MPa; In the spinning step: spinning body temperature is: (210-225) ± 1 ℃, the assembly proportioning is: steel sand 40 orders: steel sand 60 orders=3: 7, spinnerets Φ 0.25, L/D=3.0; In the cooling step: the slow cooling district height 150mm before the lateral blowing, lateral blowing wind speed 0.45-0.42m/min, 18 ± 1 ℃ of wind-warm syndrome, rheumatism 85 ± 5%RH, inside and outside two pass oils, in the path as-spun fibre freezing point position apart from spinnerets distance 850 ± 20mm; In the forming step: pre-interlacing is pressed pneumatics power 0.15 ± 0.05MPa, R2 roller/R1 roller surface line speed ratio=1.6: 1, R
2Heat setting temperature (165-178) ± 0.5 ℃, interlacing are pressed pneumatics power 0.23 ± 0.05MPa, winding speed 4780m/min, shaping α angle (6-7) degree.
Polyamide fibre 6 (one-step method) full stretching superfine denier socks that adopts method of the present invention to produce is all also excellent good than the data of high-class product with four aspects such as fine density CV value, fracture strength, fracture strength CV value and extension at break CV value of continuous yarn product, and its test value is as shown in table 1:
Table 1: the technical performance index of product of the present invention
| Sequence number | Interventions Requested | Unit | The high-class product specification requirement | Assay | Individual event is estimated |
| ??1 | Fine density variation rate | ??％ | ??±3.00 | ??0 | Qualified |
| ??2 | Fine density CV value | ??％ | ??≤1.2 | ??0.22 | Qualified |
| ??3 | Fracture strength | ??cN/d ??tex | ??≥3.80 | ??4.60 | Qualified |
| ??4 | Fracture strength CV value | ??％ | ??≤10.0 | ??5.53 | Qualified |
| ??5 | Elongation at break | ??％ | ??36.0±4.0 | ??33.0 | Qualified |
| ??6 | Extension at break CV value | ??％ | ??≤12.0 | ??11.2 | Qualified |
| ??7 | Boiling water shrinkage | ??％ | ??12.0±1.3 | ??12.7 | Qualified |
| ??8 | Oil content | ??％ | ??1.4±0.3 | ??1.3 | Qualified |
| ??9 | The network degree | ??T/M | ??25±5.0 | ??22 | Qualified |
| ??10 | Dye uniformity | Ash card level | ??≥4 | ??4 | Qualified |
Adopt the long filament of the inventive method production and like product 12D/5F, the 40D/12FFDY long filament of conventional art production to compare, line density irregularity, fracture strength and the uneven rate of elongation of product significantly reduce, the fiber good evenness can be suitable for the occasion with silk such as high-grade wrap yarn, woollen sweater, ultra-thin socks.
In this specification, the present invention is described with reference to its certain embodiments.But, still can make various modifications and conversion obviously and not deviate from the spirit and scope of the present invention.Therefore, specification and accompanying drawing are regarded in an illustrative, rather than a restrictive.
Claims (8)
1, capron 6 one-step full stretching superfine denier socks is characterized in that with the production method of long filament, may further comprise the steps:
(1) fusion step: polyamide fibre 6 half delustrings section raw material is melted in dried chip bunker importing screw extruder, make raw material be molten, become spinning melt;
(2) spinning step:, on thin dawn take-up winding, spray silk through spinnerets with above-mentioned spinning melt input spinning manifold; After metering, be pressed in the assembly, extruding forms as-spun fibre;
(3) cooling step: above-mentioned as-spun fibre by the lateral blowing air-duct apparatus, is cooled off through lateral blowing, oil nozzle, path;
(4) forming step: above-mentioned cooled tow is handled through pre-interlacing, R1 roller/R2 roller hot-stretch HEAT SETTING, interlacing, traction, and winding shaping forms the finished product spinning cake.
2, the capron 6 one-step full stretching superfine denier socks according to claim 1 production method of long filament, it is characterized in that, the temperature in each district of screw extruder is respectively in the described fusion step: 185 ± 3 ℃ in a district, 210 ± 2 ℃ in two districts, 220 ± 2 ℃ in three districts, 218 ± 2 ℃ in four districts, 215 ± 1 ℃ in five districts, 216 ± 1 ℃ of extruder head temperature, screw rod extrusion pressure 9.5 ± 0.5MPa.
3, capron 6 one-step full stretching superfine denier socks according to claim 1 is characterized in that with the production method of long filament, and in the described fusion step: polyamide fibre 6 half delustrings are done the moisture of section less than 300ppm; Nitrogen (N
2) protection pressure (1-1.2) m
3/ hr.
4, the capron 6 one-step full stretching superfine denier socks according to claim 1 production method of long filament, it is characterized in that, in the described spinning step: spinning body temperature is: (210-225) ± 1 ℃, the assembly proportioning is: steel sand 40 orders: steel sand 60 orders=3: 7, spinnerets Φ 0.25, L/D=3.0.
5, the capron 6 one-step full stretching superfine denier socks according to claim 1 production method of long filament, it is characterized in that, in the described cooling step: dry to the silk that the side spinnerets is sprayed into by the lateral blowing air-duct apparatus: the slow cooling district height 150mm before the blowing, lateral blowing wind speed 0.45-0.42m/min.
6, capron 6 one-step full stretching superfine denier socks according to claim 1 is characterized in that the air supply air-conditioner humiture is in the described cooling step: 18 ± 1 ℃ of wind-warm syndrome, rheumatism 85 ± 5%RH with the production method of long filament.
7, capron 6 one-step full stretching superfine denier socks according to claim 1 is characterized in that with the production method of long filament, in the described cooling step inside and outside two pass oil, in the path as-spun fibre freezing point position apart from spinnerets distance 850 ± 20mm.
8, capron 6 one-step full stretching superfine denier socks according to claim 1 is characterized in that with the production method of long filament, in the described forming step: control pre-interlacing and press pneumatics power 0.15 ± 0.05MPa; R2 roller/R1 roller surface line speed ratio=1.6: 1; R1 roller, R2 roller heat setting temperature (165-178) ± 0.5 ℃; Interlacing is pressed pneumatics power 0.23 ± 0.05MPa; Winding speed 4780m/min; Shaping α angle: (6-7) degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910183258A CN101619505A (en) | 2009-07-30 | 2009-07-30 | Production method of filament for capron 6 one-step full stretching superfine denier socks |
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|---|---|---|---|
| CN200910183258A CN101619505A (en) | 2009-07-30 | 2009-07-30 | Production method of filament for capron 6 one-step full stretching superfine denier socks |
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| Publication Number | Publication Date |
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| CN101619505A true CN101619505A (en) | 2010-01-06 |
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|---|---|---|---|
| CN200910183258A Pending CN101619505A (en) | 2009-07-30 | 2009-07-30 | Production method of filament for capron 6 one-step full stretching superfine denier socks |
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| CN101871134A (en) * | 2010-07-02 | 2010-10-27 | 北京三联虹普纺织化工技术有限公司 | Fine denier nylon 66 full-draft fiber spinning production process |
| CN101922055A (en) * | 2010-09-17 | 2010-12-22 | 北京三联虹普纺织化工技术有限公司 | Process for producing 9-14-dtex nylon 6 full-dull full-drawn fibers |
| CN101922053A (en) * | 2010-07-02 | 2010-12-22 | 北京三联虹普纺织化工技术有限公司 | Manufacturing process of fine denier nylon 6 fully-drawn fibers |
| CN102002763A (en) * | 2010-09-25 | 2011-04-06 | 北京三联虹普新合纤技术服务股份有限公司 | 40-denier nylon 66 full dull full drawn fiber production process |
| CN102041560A (en) * | 2010-11-02 | 2011-05-04 | 北京三联虹普新合纤技术服务股份有限公司 | Process for producing 20-denier and 1-pore semi-dull fully-drawn fibers of nylon 6 |
| CN102400235A (en) * | 2010-09-17 | 2012-04-04 | 江苏中润化纤有限公司 | Production method of elastic chinlon |
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| CN101871134A (en) * | 2010-07-02 | 2010-10-27 | 北京三联虹普纺织化工技术有限公司 | Fine denier nylon 66 full-draft fiber spinning production process |
| CN101922055A (en) * | 2010-09-17 | 2010-12-22 | 北京三联虹普纺织化工技术有限公司 | Process for producing 9-14-dtex nylon 6 full-dull full-drawn fibers |
| CN101922055B (en) * | 2010-09-17 | 2011-08-24 | 北京三联虹普新合纤技术服务股份有限公司 | Process for producing 9-14-dtex nylon 6 full-dull full-drawn fibers |
| CN102400235A (en) * | 2010-09-17 | 2012-04-04 | 江苏中润化纤有限公司 | Production method of elastic chinlon |
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| CN102041560A (en) * | 2010-11-02 | 2011-05-04 | 北京三联虹普新合纤技术服务股份有限公司 | Process for producing 20-denier and 1-pore semi-dull fully-drawn fibers of nylon 6 |
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| WO2020151116A1 (en) * | 2019-01-21 | 2020-07-30 | 江苏文凤化纤集团有限公司 | Production method for ultraviolet-resistant nylon superfine-fiber filament and production apparatus thereof |
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Open date: 20100106 |