CN111304760A - Preparation method of high-bulkiness mechanical elastic chinlon 6 filament and filament prepared by same - Google Patents
Preparation method of high-bulkiness mechanical elastic chinlon 6 filament and filament prepared by same Download PDFInfo
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- CN111304760A CN111304760A CN202010291133.4A CN202010291133A CN111304760A CN 111304760 A CN111304760 A CN 111304760A CN 202010291133 A CN202010291133 A CN 202010291133A CN 111304760 A CN111304760 A CN 111304760A
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- filament
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- nylon
- bulkiness
- spinneret
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/253—Formation of filaments, threads, or the like with a non-circular cross section; Spinnerette packs therefor
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/22—Formation of filaments, threads, or the like with a crimped or curled structure; with a special structure to simulate wool
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
- D01F6/58—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products
- D01F6/60—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from polyamides
Abstract
The invention discloses a preparation method of a high-bulkiness mechanical-elasticity nylon 6 filament and a filament prepared by the preparation method, and the preparation method comprises the steps of drying nylon 6 slices, melting and extruding by a screw rod, metering and spinning by a spinning box, discharging a melt, cooling and forming, oiling and bundling, and drafting and winding and forming, wherein the number of spinneret orifices of a spinneret plate in the step of discharging the melt is 24-48, the main body of the cross section of each spinneret orifice is a double cross which is connected in parallel, the length ratio of the long side to the short side of each spinneret orifice is 4-8: 1, each side of each spinneret orifice is a wave curve side which is formed by connecting arc hyperbolas with the same or different diameters, and the wave curve side is a control curve for preparing a nylon 6; annular air blowing cooling is adopted in the cooling forming step; and in the oiling and bundling step, nozzle oiling is adopted. The high-bulked double-cross wavy-curve section filament prepared by the method has a larger contact surface coverage ratio, has a two-color third dimension, is soft in luster, good in dyeing performance, and has the characteristics of ultraviolet resistance, moisture absorption and discharge, heat preservation and the like.
Description
Technical Field
The invention relates to the technical field of nylon-6 filaments, in particular to a preparation method of high-bulkiness mechanical elastic nylon-6 filaments and filaments prepared by the same.
Background
At present, most of chemical fibers used in the fields of domestic clothing, clothes and the like are round sections, have the defects of poor light tortuosity effect, no fluffy feeling, no three-dimensional sense, poor moisture permeability, small contact specific surface area, poor elastic shrinkage and the like, and are difficult to meet the pursuit of people for comfort, so that people have the impression of engraving chemical fibers, and the development of the chemical fibers is limited by limited consumption.
The functional special-shaped chemical fiber greatly improves the defects of the traditional round chemical fiber, has excellent light refractive index, bulkiness, good elasticity, quick moisture absorption and discharge effects and the like, and has very high added value, so the special-shaped chemical fiber has a wide development prospect. Common special-shaped chemical fibers have trilobal, rice-shaped, Y-shaped and cross-shaped sections and the like, but have certain defects, for example, although trilobal and Y-shaped section fibers have the advantage of flashing, the bulkiness and the water absorption are poor; although the fibers with the cross-shaped and the cross-shaped cross sections have better moisture absorption, the glossiness and the moisture permeability of the fibers still have bottlenecks, and the performance of the fibers cannot be improved; the C-shaped section fiber has the characteristics of light weight, good heat retention and the like, but the luster is poor. From this, the special-shaped chemical fiber of prior art production can not have the advantage of multiple functions such as gloss is good, sweat-absorbing hydrofuge, matter is light cold-proof, can't satisfy people's daily consumption demand, consequently, need develop a novel special-shaped chemical fiber that possesses the multifunctional characteristic and richen current product to satisfy the demand of people to having multi-functional fabrics.
Disclosure of Invention
The invention aims to solve the technical problem of insufficient functions of the conventional special-shaped chemical fiber products and provides a preparation method of high-bulked mechanical elastic nylon-6 filament which has a double-cross thick and thin curve long-wave arc-shaped cross section, has the advantages of high moisture permeability, high resilience elasticity, large specific surface area coverage, warm keeping, cooling property and the like and the filament prepared by the preparation method.
In order to achieve the purpose, the invention adopts the following technical scheme:
a method for preparing high-bulkiness mechanical-stretch nylon-6 filament comprises the steps of nylon-6 slice drying, screw melting extrusion, spinning box metering spinning, melt filament discharging, cooling forming, oiling and bundling, drafting and winding forming, wherein the number of spinneret holes in a spinneret plate adopted in the melt filament discharging step is 24-48, the cross section main body of each spinneret hole is a double cross shape connected in parallel, the length ratio of the long side to the short side of each spinneret hole is 4-8: 1, each side of each spinneret hole is a wavy curve side formed by connecting arc hyperbolas with the same or different diameters, and the wavy curve side is a control curve for preparing a nylon-6 filament product; in the cooling and forming step, annular air blowing is adopted for cooling, the cooling air speed is 0.45-0.6 m/s, and the cooling temperature is 18 +/-2 ℃; and in the oiling and bundling step, nozzle oiling is adopted.
Furthermore, the diameter ratio range of the arc-shaped hyperbolas with different diameters is 3-5: 1, the arc-shaped hyperbolas with different diameters are arranged according to the size sequence or are arranged at large intervals to form a wave curve side, the heads and the tails of the wave curve sides are continuously connected with each other, and the change range of the distance H from the innermost side to the outermost side of the wave curve side is 0.03-0.08 mm.
Further, the relative viscosity of the chinlon 6 slices is 2.45-2.50.
Further, the spinning temperature was set to 260. + -. 2 ℃.
Further, the filament winding speed is 4000-4800 m/min.
Furthermore, the mechanical rebound speed during the drawing, winding and forming is 650m/min, and the stretch ratio is 1.2-1.25%.
The filament prepared by the preparation method of the high-bulkiness mechanical elastic chinlon 6 filament has the technical indexes that: the final titer is 1.6-4.6 dtex/dpf; the elastic breaking strength is 4.0-5.0 cN/dtex, and the elongation at break is 25-30%.
The invention has the following beneficial effects:
1. the spinneret orifices in the spinneret plate are designed into a double cross shape, the wave curves formed by connecting arc hyperbolas with the same or different diameters are arranged on the edges of the double cross-shaped spinneret orifices, the double cross-shaped wave curved high-bulked mechanical elastic nylon 6 filament is prepared by utilizing the wave curve edges of the spinneret orifices in the spinneret orifice in the spinneret process, and the wave curves of the double cross-shaped spinneret orifices can be designed and changed according to the spinneret extrusion conditions and the filament performance, so that the prepared filament has better bulked effect, the filament with the high-bulked double cross-shaped wave curved cross section has larger contact surface coverage ratio, and has the characteristics of double-color stereoscopic impression, luster, good dyeing performance, softness, ultraviolet resistance, moisture absorption and discharge, heat preservation and the like. The nylon 6 filament yarn prepared by the invention has the advantages of imitated cashmere hand feeling and elastic effect after being woven into a cloth cover, the elasticity of the nylon 6 filament yarn is higher than the resilience of common nylon 6 stretch yarns by more than 30 percent, and the nylon 6 filament yarn is light and soft and has the characteristics of moisture absorption, heat preservation, sweat releasing, air permeability, good comfort, strong stretching and covering property and the like.
2. The wavy curve edge of the spinneret orifice is formed by arranging the arc hyperbolas with the same or different diameters according to the size sequence or arranging and connecting the arc hyperbolas with the same size at intervals, the number, the curvature diameter and the arrangement mode of the arc hyperbolas are set according to different filament performances, and different wavy curves can be formed.
3. The invention utilizes the improved spinneret orifice structure of the spinneret plate and combines the spinneret orifice improvement to optimize the spinning temperature, the cooling air speed, the cooling temperature, the winding speed and the texturing processing parameters in the filament preparation process to obtain the high-bulked mechanical-stretch nylon-6 filament with excellent performance.
Drawings
FIG. 1 is a schematic view of a spinneret plate according to the present invention;
FIG. 2 is an enlarged schematic cross-sectional view of the spinneret orifice in the spinneret plate according to the present invention;
FIG. 3 is an enlarged cross-sectional view of the spinneret hole with different wavy curve edge contrasts in the present invention.
Description of reference numerals:
1. a spinneret plate; 2. a spinneret orifice; 21. an arc hyperbola; 22. the wave curve edge.
Detailed Description
The invention is described in further detail below with reference to the following figures and specific examples:
referring to fig. 1-3, a method for preparing a high-bulkiness mechanical-stretch nylon 6 filament comprises the steps of nylon 6 slice drying, screw melt extrusion, spinning box metering spinning, melt filament discharging, cooling forming, oiling bundling, drafting winding forming, wherein the number of spinneret orifices 2 in a spinneret plate 1 adopted in the melt filament discharging step is 24-48, the main body of the spinneret plate 1 is of a circular flat plate structure, the spinneret orifices 2 on the spinneret plate 1 are arranged and distributed in a centripetal manner, the main body of the cross section of each spinneret orifice 2 is of a double cross shape connected in parallel, the length ratio of the long side to the short side of each spinneret orifice 2 is 4-8: 1, each side of each spinneret orifice 2 is a wavy curve side 22 formed by connecting arc hyperbolas 21 with the same or different diameters, and the wavy curve side 22 is a control curve for preparing a nylon 6 filament product; in the cooling and forming step, annular air blowing is adopted for cooling, the cooling air speed is 0.45-0.6 m/s, and the cooling temperature is 18 +/-2 ℃; and in the oiling and bundling step, nozzle oiling is adopted.
The diameter ratio range of the arc-shaped hyperbolas 21 with different diameters is 3-5: 1, the arc-shaped hyperbolas 21 with different diameters are arranged according to the size sequence or the size interval to be connected into the wave curve sides 22, the heads and the tails between the wave curve sides 22 are continuously connected with each other, and the change range of the distance H from the innermost side to the outermost side of the wave curve sides 22 is 0.03-0.08 mm. The number of the arc hyperbolas forming the wave curve side 22 in each side is at least 2, and more arc hyperbolas can be arranged according to the requirement.
The relative viscosity of the nylon-6 chips is 2.45-2.50. The spinning temperature was set at 260. + -. 2 ℃. The filament winding speed is 4000-4800 m/min.
The mechanical rebound speed in the drawing, winding and forming process is 650m/min, and the stretch ratio is 1.2-1.25%.
The filament prepared by the preparation method of the high-bulkiness mechanical elastic chinlon 6 filament has the technical indexes that: the final titer is 1.6-4.6 dtex/dpf; the elastic breaking strength is 4.0-5.0 cN/dtex, and the elongation at break is 25-30%.
The invention adopts a chip melt spinning method, nylon 6 chips are fed into a storage bin, fall into an intermediate storage bin under the action of gravity, enter a screw extruder through a blanking pipe, are heated, melted and mixed in each section in the screw extruder and are extruded from a measuring head at the end part, and the screw extruder is provided with a coarse filtering device, thereby ensuring that no large particle name aggregates enter a spinning box body. A melt distribution pipeline is connected between the screw extruder and the spinning box body, the pipeline adopts a jacket design, airtight heat medium steam is selected as a heat medium, and a static liquid mixer is arranged in the melt pipeline to ensure uniform mixing of melts. The melt is rectified under high pressure by a spinning box, a metering pump and a spinning assembly to be extruded into filaments from a spinneret plate 1 with 24-48 spinneret orifices 2, the filaments are cooled, solidified and formed by circular air blowing in a spinning channel, oiled and bunched, drawn by a yarn guide disc to a winding head to be wound and formed, then heated by a zero roller and a heat guide disc in a roller in a post-spinning process, heated by an upper hot box between the roller and two rollers after the thickness effect is adjusted by discontinuous frequency contact navigation heating of a controllable yarn moving motor, stretched and formed, and then wound and formed by a false twister, an auxiliary roller, a network device, a yarn detector, an oil roller and a winding roller, so that the double-cross-shaped wave curve high-bulked mechanical elastic nylon 6 filament is prepared.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent structural changes made by using the contents of the present specification and the drawings, or applied directly or indirectly to other related technical fields, are included in the scope of the present invention.
Claims (7)
1. A preparation method of high-bulkiness mechanical elastic nylon 6 filament comprises the steps of nylon 6 slice drying, screw melt extrusion, spinning box metering spinning, melt yarn discharge, cooling forming, oiling and bundling, drafting and winding forming, and is characterized in that: the number of the spinneret orifices (2) in the spinneret plate (1) adopted in the melt spinning step is 24-48, the main body of the cross section of each spinneret orifice (2) is a double cross shape which is connected in parallel, the length ratio of the long side to the short side of each spinneret orifice (2) is 4-8: 1, each side of each spinneret orifice (2) is a wavy curve side (22) formed by connecting arc hyperbolas (21) with the same or different diameters, and each wavy curve side (22) is a control curve for preparing a nylon 6 filament product; in the cooling and forming step, annular air blowing is adopted for cooling, the cooling air speed is 0.45-0.6 m/s, and the cooling temperature is 18 +/-2 ℃; and in the oiling and bundling step, nozzle oiling is adopted.
2. The preparation method of the high-bulkiness mechanical elastic nylon 6 filament yarn according to claim 1, characterized by comprising the following steps: the diameter ratio range of the arc-shaped hyperbolas (21) with different diameters is 3-5: 1, the arc-shaped hyperbolas (21) with different diameters are arranged according to the size sequence or the size interval to be connected into a wave curve side (22), the heads and the tails of the wave curve sides (22) are continuously connected with each other, and the change range of the distance H from the innermost side to the outermost side of the wave curve side (22) is 0.03-0.08 mm.
3. The preparation method of the high-bulkiness mechanical elastic nylon 6 filament yarn according to claim 1, characterized by comprising the following steps: the relative viscosity of the nylon-6 chips is 2.45-2.50.
4. The preparation method of the high-bulkiness mechanical elastic nylon 6 filament yarn according to claim 1, characterized by comprising the following steps: the spinning temperature was set at 260. + -. 2 ℃.
5. The preparation method of the high-bulkiness mechanical elastic nylon 6 filament yarn according to claim 1, characterized by comprising the following steps: the filament winding speed is 4000-4800 m/min.
6. The preparation method of the high-bulkiness mechanical elastic nylon 6 filament yarn according to claim 1, characterized by comprising the following steps: the mechanical rebound speed in the drawing, winding and forming process is 650m/min, and the stretch ratio is 1.2-1.25%.
7. A filament prepared by the preparation method of the high-bulkiness mechanical elastic nylon-6 filament according to claim 1, which is characterized in that: the technical indexes of the filament are as follows: the final titer is 1.6-4.6 dtex/dpf; the elastic breaking strength is 4.0-5.0 cN/dtex, and the elongation at break is 25-30%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010291133.4A CN111304760A (en) | 2020-04-14 | 2020-04-14 | Preparation method of high-bulkiness mechanical elastic chinlon 6 filament and filament prepared by same |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010291133.4A CN111304760A (en) | 2020-04-14 | 2020-04-14 | Preparation method of high-bulkiness mechanical elastic chinlon 6 filament and filament prepared by same |
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| CN111304760A true CN111304760A (en) | 2020-06-19 |
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| CN202010291133.4A Pending CN111304760A (en) | 2020-04-14 | 2020-04-14 | Preparation method of high-bulkiness mechanical elastic chinlon 6 filament and filament prepared by same |
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4392808A (en) * | 1982-06-21 | 1983-07-12 | Eastman Kodak Company | Spinneret orifice cross-sections |
| US5731248A (en) * | 1994-09-26 | 1998-03-24 | Eastman Chemical Company | Insulation material |
| KR20100073706A (en) * | 2008-12-23 | 2010-07-01 | 코오롱글로텍주식회사 | Artificial turf fiber using poly trimethyleneterephthalate and structure of composite artificial turf |
| CN102864512A (en) * | 2012-09-20 | 2013-01-09 | 东华大学 | Double-cross sectional dark fiber and preparation method thereof |
| CN103774255A (en) * | 2014-02-14 | 2014-05-07 | 苏州大学 | Double-wave-line-shaped nylon-6 filament and preparation method thereof |
| CN206635471U (en) * | 2017-02-21 | 2017-11-14 | 浙江名蒙服饰有限公司 | A kind of spinning pack of odd-shaped cross section anion polyamide fibre |
| CN107641840A (en) * | 2016-07-22 | 2018-01-30 | 胜隆纤维股份有限公司 | Multi-lobal fibers |
| CN109576804A (en) * | 2018-11-05 | 2019-04-05 | 福建锦江科技有限公司 | A kind of 6 drafting silk of polyamide fibre and preparation method thereof with spot effect |
| CN109972216A (en) * | 2017-12-28 | 2019-07-05 | 绍兴柯桥通益科技信息咨询有限公司 | High-elasticity ventilating profiled filament |
| CN110938889A (en) * | 2019-12-09 | 2020-03-31 | 福建锦江科技有限公司 | Special-shaped chinlon 6 filament and preparation method thereof |
-
2020
- 2020-04-14 CN CN202010291133.4A patent/CN111304760A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4392808A (en) * | 1982-06-21 | 1983-07-12 | Eastman Kodak Company | Spinneret orifice cross-sections |
| US5731248A (en) * | 1994-09-26 | 1998-03-24 | Eastman Chemical Company | Insulation material |
| KR20100073706A (en) * | 2008-12-23 | 2010-07-01 | 코오롱글로텍주식회사 | Artificial turf fiber using poly trimethyleneterephthalate and structure of composite artificial turf |
| CN102864512A (en) * | 2012-09-20 | 2013-01-09 | 东华大学 | Double-cross sectional dark fiber and preparation method thereof |
| CN103774255A (en) * | 2014-02-14 | 2014-05-07 | 苏州大学 | Double-wave-line-shaped nylon-6 filament and preparation method thereof |
| CN107641840A (en) * | 2016-07-22 | 2018-01-30 | 胜隆纤维股份有限公司 | Multi-lobal fibers |
| CN206635471U (en) * | 2017-02-21 | 2017-11-14 | 浙江名蒙服饰有限公司 | A kind of spinning pack of odd-shaped cross section anion polyamide fibre |
| CN109972216A (en) * | 2017-12-28 | 2019-07-05 | 绍兴柯桥通益科技信息咨询有限公司 | High-elasticity ventilating profiled filament |
| CN109576804A (en) * | 2018-11-05 | 2019-04-05 | 福建锦江科技有限公司 | A kind of 6 drafting silk of polyamide fibre and preparation method thereof with spot effect |
| CN110938889A (en) * | 2019-12-09 | 2020-03-31 | 福建锦江科技有限公司 | Special-shaped chinlon 6 filament and preparation method thereof |
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Application publication date: 20200619 |
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