CN106120003A - A kind of spinneret, abnormity nylon-6 fiber and preparation method thereof - Google Patents
A kind of spinneret, abnormity nylon-6 fiber and preparation method thereof Download PDFInfo
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- CN106120003A CN106120003A CN201610806719.3A CN201610806719A CN106120003A CN 106120003 A CN106120003 A CN 106120003A CN 201610806719 A CN201610806719 A CN 201610806719A CN 106120003 A CN106120003 A CN 106120003A
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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
- 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
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
- Artificial Filaments (AREA)
Abstract
The present invention relates to a kind of spinneret, including substrate and the spinneret orifice of at least one, described spinneret orifice is arranged on described substrate, the cross section of described spinneret orifice is broached-tooth design, described broached-tooth design includes two sawtooth portions, described sawtooth portion includes the semi arch that four radiuses are identical, the described semi arch of four order successively is arranged, and connected by straight line between two adjacent semi arches, the described sawtooth portion of two is interconnected to form the closing structure of symmetry, and four semi arches in a sawtooth portion are arranged with four semi arch one_to_one corresponding in another sawtooth portion.The invention still further relates to a kind of abnormity nylon-6 fiber and preparation method thereof.The special-shaped nylon-6 fiber of the present invention has that gloss is good and moisture absorption sweat discharging functions concurrently, and its fabric had both had soft fine and smooth feel as cashmere, and had again the good characteristics such as good, the quick moisture absorption of dyeability.
Description
Technical field
The present invention relates to chemical fibre technology, particularly to a kind of spinneret, the abnormity that prepared by above-mentioned spinneret
Nylon-6 fiber and the preparation method of above-mentioned abnormity nylon-6 fiber.
Background technology
Chinlon, because of features such as the physical property of its excellence, as high in intensity, good hygroscopicity and bright, is widely used in clothes
Dress industry.In recent years, the research of nylon-6 fiber, send out rapidly especially for the research possessing various additional function nylon-6 fiber
Exhibition.
The cross section of traditional chinlon is circular, and the hygroscopicity of the nylon-6 fiber of circular cross-section is relatively poor, flexible
Wrinkle so that it is the development in high-end weaving field is extremely restricted.Abnormity nylon-6 fiber is the non-circular chinlon in cross section.Abnormity
The research direction of nylon-6 fiber is to increase the specific surface area of nylon-6 fiber, i.e. by the design of odd-shaped cross section, fine at chinlon 6
The outline in dimension table face introduces groove, strengthens capillary effect, so that the gloss of nylon-6 fiber, feel, hygroscopicity, stiffness
Raising in various degree is obtained with elasticity etc..
Spinneret is also known as spinning cap, and the high polymer molten of viscous state is transformed into by the spinneret orifice on spinneret specific section
The thread in face, cured formation strand.That is, the nylon-6 fiber of particular cross section can be obtained by the spinneret orifice of ad hoc structure.
The nylon-6 fiber of common odd-shaped cross section have " one " font, " ten " font, trilobal, triangle, five leaf,
" rice " font and hollow circular etc..Wherein, the patent of invention of Publication No. CN104818538A discloses a kind of super thick denier polyamide fiber 6
Flat fiber, spinneret orifice cross section is " one " font, improves scientific and technological content and the added value of chinlon 6 fibre in differentiation product；Public
The patent of invention that the number of opening is CN104805519A discloses a kind of polyamide 6 special-shaped fiber, and spinneret orifice cross section is " ten " font, its
In " ten " font, the length of " erecting " is 1/2nd of the length of " horizontal ", and the nylon-6 fiber in this cross section has stronger leads wet row
Antiperspirant ability；The patent of invention of Publication No. CN104060343A discloses a kind of fine-denier and super fine denier nylon-6 fiber, and spinneret orifice cuts
Face is corner star, and the nylon-6 fiber in this cross section has preferable dyeability.The nylon-6 fiber of existing odd-shaped cross section is all
Because of the increase of specific surface area, the aspect such as hygroscopicity, gloss obtains improvement in various degree, but the special-shaped chinlon 6 of different cross section is equal
There is a certain degree of defect.Such as: the gloss of the special-shaped nylon-6 fiber of " ten " shaped sections is poor, triangular-section
The abnormity water absorption of nylon-6 fiber, moisture-inhibiting effect is relatively poor, limits its application.
Summary of the invention
The technical problem to be solved is: provide that a kind of to have gloss concurrently good bright and beautiful with the abnormity of moisture absorption sweat discharging functions
Synthetic fibre 6 fiber, the spinneret preparing above-mentioned abnormity nylon-6 fiber and the preparation method of above-mentioned abnormity nylon-6 fiber.
In order to solve above-mentioned technical problem, the technical solution used in the present invention is:
A kind of spinneret, including substrate and the spinneret orifice of at least one, described spinneret orifice is arranged on described substrate,
The cross section of described spinneret orifice is broached-tooth design, and described broached-tooth design includes that two sawtooth portions, described sawtooth portion include four
The semi arch that radius is identical, four described semi arch orders successively arrange, and pass through straight line between two adjacent semi arches
Connecting, two described sawtooth portions are interconnected to form the closing structure of symmetry, four semi arches in a sawtooth portion and another
Four semi arch one_to_one corresponding in sawtooth portion are arranged.
A kind of abnormity nylon-6 fiber, by polyamide 6 section spinneret orifice extrusion on above-mentioned spinneret, it is thus achieved that one
Plant abnormity nylon-6 fiber.
A kind of abnormity nylon-6 fiber, the cross section of described abnormity nylon-6 fiber is broached-tooth design, described broached-tooth design bag
Including two sawtooth portions, described sawtooth portion includes the semi arch that four radiuses are identical, and the described semi arch of four order successively is arranged,
And connected by straight line between two adjacent semi arches, the described sawtooth portion of two is interconnected to form the Guan Bi knot of symmetry
Structure, four semi arches in a sawtooth portion are arranged with four semi arch one_to_one corresponding in another sawtooth portion.
The preparation method of a kind of abnormity nylon-6 fiber, does section by the polyamide 6 that relative viscosity is 2.40-2.70 and carries out
Melted, it is thus achieved that polyamide 6 melt, described melt temperature is 250-270 DEG C；By described polyamide 6 melt through above-mentioned spinneret
On spinneret orifice extrusion, it is thus achieved that daiamid-6 fiber tow, by described daiamid-6 fiber tow successively through monomer suction, side-blown
Air cooling, boundling oil, drawing and setting and network interlacing, then winding shaping, it is thus achieved that described abnormity nylon-6 fiber.
A kind of abnormity nylon-6 fiber, prepares according to the preparation method of above-mentioned special-shaped nylon-6 fiber.
The beneficial effects of the present invention is:
(1) being designed by the above-mentioned odd-shaped cross section of the spinneret orifice of spinneret, this cross section entirety presents twolip zigzag, from
And the cross section of special-shaped nylon-6 fiber making the spinneret using the present invention prepare is twolip zigzag；Cross section in
The specific surface area of above-mentioned twolip zigzag abnormity nylon-6 fiber is effectively increased, and the groove of fiber surface can strengthen hair
Thin effect, specific surface area is big and bulk plentiful advantage to make abnormity nylon-6 fiber have, and has that gloss is good and moisture absorbing and sweat releasing merit concurrently
Energy；The fabric using the weaving of this abnormity nylon-6 fiber to obtain both had had soft fine and smooth feel as cashmere, had again dyeability
The good characteristics such as good and quick moisture absorption；
(2) in the preparation method of the special-shaped nylon-6 fiber of the present invention, its production process is controlled, constant product quality, prepares
The fracture strength of special-shaped nylon-6 fiber, elongation at break, oil content, the index such as boiling water expansion and contraction all reach GB/T16603-
The prescribed limit of 2008 " nylon drawn yarns ", and following process can be met and use requirement.
Accompanying drawing explanation
Fig. 1 is the schematic shapes of the cross section of the spinneret orifice of the spinneret of the embodiment of the present invention；
Fig. 2 is the schematic diagram of the spinneret of the embodiment of the present invention one；
Fig. 3 is the schematic diagram of the spinneret of the embodiment of the present invention two；
Fig. 4 is the mirror lower section structure chart of the special-shaped nylon-6 fiber amplification 1000 times of the embodiment of the present invention.
Label declaration:
1, substrate；2, spinneret orifice；21, semi arch；22, straight line.
Detailed description of the invention
By describing the technology contents of the present invention in detail, being realized purpose and effect, below in conjunction with embodiment and coordinate attached
Figure is explained.
The design of most critical of the present invention is: design cross section is above-mentioned twolip zigzag abnormity nylon-6 fiber, to have
Effect increases specific surface area and strengthens capillary effect, and gloss is good and moisture absorption sweat discharging functions to make the special-shaped nylon-6 fiber prepared have concurrently.
Refer to Fig. 1 and Fig. 2, a kind of spinneret, including substrate 1 and the spinneret orifice 2 of at least one, described spray webbing is micro-
Hole 2 is arranged on described substrate 1, and the cross section of described spinneret orifice 2 is broached-tooth design, and described broached-tooth design includes two sawtooth
Portion, described sawtooth portion includes that the semi arch 21 that four radiuses are identical, four described semi arch 21 orders successively are arranged, and adjacent
Two semi arches 21 between connected by straight line 22, two described sawtooth portions are interconnected to form the closing structure of symmetry,
Four semi arches 21 in one sawtooth portion are arranged with four semi arch 21 one_to_one corresponding in another sawtooth portion.
A kind of abnormity nylon-6 fiber, extrudes polyamide 6 section spinneret orifice 2 on above-mentioned spinneret, it is thus achieved that institute
State abnormity nylon-6 fiber.
A kind of abnormity nylon-6 fiber, the cross section of described abnormity nylon-6 fiber is broached-tooth design, described broached-tooth design bag
Including two sawtooth portions, described sawtooth portion includes the semi arch that four radiuses are identical, and the described semi arch of four order successively is arranged,
And connected by straight line between two adjacent semi arches, the described sawtooth portion of two is interconnected to form the Guan Bi knot of symmetry
Structure, four semi arches in a sawtooth portion are arranged with four semi arch one_to_one corresponding in another sawtooth portion.
The preparation method of a kind of abnormity nylon-6 fiber, does section by the polyamide 6 that relative viscosity is 2.40-2.70 and carries out
Melted, it is thus achieved that polyamide 6 melt, described melt temperature is 250-270 DEG C；By described polyamide 6 melt through above-mentioned spinneret
On spinneret orifice 2 extrude, it is thus achieved that daiamid-6 fiber tow, by described daiamid-6 fiber tow successively through monomer suction, side
Quenching, boundling oil, drawing and setting and network interlacing, then winding shaping, it is thus achieved that described abnormity nylon-6 fiber.
Knowable to foregoing description, the beneficial effects of the present invention is:
(1) being designed by the above-mentioned odd-shaped cross section of the spinneret orifice of spinneret, this cross section entirety presents twolip zigzag, from
And the cross section of special-shaped nylon-6 fiber making the spinneret using the present invention prepare is twolip zigzag；Cross section in
The specific surface area of above-mentioned twolip zigzag abnormity nylon-6 fiber is effectively increased, and the groove of fiber surface can strengthen hair
Thin effect, specific surface area is big and bulk plentiful advantage to make abnormity nylon-6 fiber have, and has that gloss is good and moisture absorbing and sweat releasing merit concurrently
Energy；The fabric using the weaving of this abnormity nylon-6 fiber to obtain both had had soft fine and smooth feel as cashmere, had again dyeability
The good characteristics such as good and quick moisture absorption；
(2) in the preparation method of the special-shaped nylon-6 fiber of the present invention, its production process is controlled, constant product quality, prepares
The fracture strength of special-shaped nylon-6 fiber, elongation at break, oil content, the index such as boiling water expansion and contraction all reach GB/T16603-
The prescribed limit of 2008 " nylon drawn yarns ", and following process can be met and use requirement.
In the spinneret of the present invention,
Further, 4-4.2 times that the center of circle distance of two semi arches 21 adjacent in described sawtooth portion is radius, two
1-1.2 times that the center of circle distance of two semi arches 21 being correspondingly arranged in sawtooth portion is radius.
Seen from the above description, as a concrete example, the design of Structural Parameters in above-mentioned sawtooth portion can be further
Improve specific surface area and the capillary effect of the special-shaped nylon-6 fiber using above-mentioned spinneret to prepare.
Further, the number of described spinneret orifice is 7-12.
Seen from the above description, as a concrete structure example, the number of spinneret orifice 2 is 7-12, such as may be used
Think 7 or 12.
In the special-shaped nylon-6 fiber of the present invention,
Further, 4-4.2 times that distance is radius of the center of circle of adjacent two semi arch in described sawtooth portion, two
1-1.2 times that distance is radius of the center of circle of two semi arches being correspondingly arranged in individual sawtooth portion.
Seen from the above description, as a concrete example, the design of Structural Parameters in above-mentioned sawtooth portion can be further
Improve the abnormity specific surface area of nylon-6 fiber and capillary effect so that it is have that gloss is good and moisture absorption sweat discharging functions concurrently.
In the preparation method of the special-shaped nylon-6 fiber of the present invention,
Further, polyamide 6 does section when carrying out melted, polyamide 6 is done simultaneously section carry out mixing, compress and squeeze
Go out, it is thus achieved that polyamide 6 melt, described melted, mixing, compress and the temperature extruded is 250-270 DEG C.
Seen from the above description, as a concrete example, can use screw extruder carry out above-mentioned melted, mixing,
Compression and extrusion operation, the temperature in screw extruder is preferably 250-270 DEG C, may further ensure that melted effect, it is simple to
The polyamide 6 melt constant product quality controlled and obtain；Separately, polyamide 6 melt feeding manifold can be carried out spinning.
Further, described polyamide 6 melt is first passed through dosing pump and measures, then carried out by filament spinning component
Filter, the then extrusion of the spinneret orifice on above-mentioned spinneret.
Seen from the above description, as a concrete example, dosing pump can be used to count polyamide 6 melt
Amount, is then filtered by filament spinning component, then is extruded by its spinneret orifice on spinneret, it is possible to achieve to polyamide 6 melt
Accurate measurement and filter further, it is ensured that product quality.
Further, the temperature of described cross air blasting cooling is 23-25 DEG C, and humidity is 70-80%, and wind speed is 0.45-
0.55m/s。
Seen from the above description, as a concrete example, cross air blasting cooling specifically can use above-mentioned parameter to design,
Cooling can be made abundant, it is ensured that product quality.
Further, described boundling oils this oil preparation of bamboo that oil preparation is concentration 8-10% of middle employing.
Seen from the above description, boundling oils, and can be fibre bundle be oiled collection by the oil nozzle of finishing oil pump metered fuel charge
Bundle, the oil preparation of employing is preferably this oil preparation of bamboo of concentration 8-10%, can be further ensured that product quality.
Further, the temperature of described drawing and setting is 140-170 DEG C.
Seen from the above description, as a concrete example, the temperature of drawing and setting uses above-mentioned design, can be further
Ensure product quality.
Further, the winding speed 4500-4700m/min of described winding.
Seen from the above description, as a concrete example, the winding speed of winding uses above-mentioned design, can be further
Ensure smoothly and efficiently carrying out of winding.
Refer to Fig. 1-3, embodiments of the invention one are:
A kind of spinneret, including substrate 1 and 7 spinneret orifices 2, described spinneret orifice 2 is arranged on described substrate 1, institute
The cross section stating spinneret orifice 2 is broached-tooth design, and described broached-tooth design includes that two sawtooth portions, described sawtooth portion include four and half
The semi arch 21 that footpath is identical, four described semi arch 21 orders successively arrange, and pass through between two adjacent semi arches 21
Straight line 22 connects, and two described sawtooth portions are interconnected to form the closing structure of symmetry, four semi arches in a sawtooth portion
21 are arranged with four semi arch 21 one_to_one corresponding in another sawtooth portion.Adjacent two semi arch 21 in described sawtooth portion
4 times that center of circle distance is radius, 1 times that the center of circle distance of two semi arches 21 being correspondingly arranged in two sawtooth portions is radius.
A kind of abnormity nylon-6 fiber, extrudes polyamide 6 section spinneret orifice 2 on above-mentioned spinneret, it is thus achieved that institute
State abnormity nylon-6 fiber.
The preparation method of a kind of abnormity nylon-6 fiber, is sent the dry section of polyamide 6 that relative viscosity is 2.40 by pipeline
Carry out melting to screw extruder, mixing, compress and extrude, it is thus achieved that polyamide 6 melt, described melted, mixing, compress and squeeze
The temperature gone out is 245 DEG C, 250 DEG C, 251 DEG C, 252 DEG C, 253 DEG C；Described polyamide 6 melt is first passed through dosing pump carry out accurately
Metering, then filtered by filament spinning component, the then extrusion of the spinneret orifice on above-mentioned spinneret, it is thus achieved that polyamide 6 is fine
Dimension tow, oils through monomer suction, cross air blasting cooling, boundling successively by described daiamid-6 fiber tow, drawing and setting and network
Interlacing, network interlacing uses network nozzle to carry out, then winding shaping, and the temperature of described cross air blasting cooling is 23 DEG C, and humidity is
70%, wind speed is 0.45m/s, and described boundling oils this oil preparation of bamboo that oil preparation is concentration 8% of middle employing, described drawing and setting
Temperature is 140 DEG C, the winding speed 4600m/min of described winding, it is thus achieved that described abnormity nylon-6 fiber.
A kind of abnormity nylon-6 fiber, prepares according to the preparation method of above-mentioned special-shaped nylon-6 fiber.
Refer to Fig. 1-3, embodiments of the invention two are:
A kind of spinneret, only " number of spinneret orifice 2 is 12, adjacent two semi arch 21 in described sawtooth portion
Distance is radius 4.2 times of the center of circle, the distance in the center of circle of two semi arches 21 being correspondingly arranged in two sawtooth portions is half
1.2 times of footpath " different from embodiment one, other are all identical with embodiment one.
A kind of abnormity nylon-6 fiber, extrudes polyamide 6 section spinneret orifice 2 on above-mentioned spinneret, it is thus achieved that institute
State abnormity nylon-6 fiber.
The preparation method of a kind of abnormity nylon-6 fiber, is sent the dry section of polyamide 6 that relative viscosity is 2.70 by pipeline
Carry out melting to screw extruder, mixing, compress and extrude, it is thus achieved that polyamide 6 melt, described melted, mixing, compress and squeeze
The temperature gone out is 260 DEG C, 263 DEG C, 265 DEG C, 268 DEG C, 270 DEG C；Described polyamide 6 melt is first passed through dosing pump carry out accurately
Metering, then filtered by filament spinning component, the then extrusion of the spinneret orifice on above-mentioned spinneret, it is thus achieved that polyamide 6 is fine
Dimension tow, oils through monomer suction, cross air blasting cooling, boundling successively by described daiamid-6 fiber tow, drawing and setting and network
Interlacing, then winding shaping, the temperature of described cross air blasting cooling is 22 DEG C, and humidity is 80%, and wind speed is 0.50m/s, described collection
Restrainting this oil preparation of bamboo that oil preparation is concentration 10% of the middle employing that oils, the temperature of described drawing and setting is 160 DEG C, the volume of described winding
Around speed 4500m/min, it is thus achieved that described abnormity nylon-6 fiber.
A kind of abnormity nylon-6 fiber, prepares according to the preparation method of above-mentioned special-shaped nylon-6 fiber.
Refer to Fig. 1-3, embodiments of the invention three are:
A kind of spinneret, only " number of spinneret orifice 2 is 10, adjacent two semi arch 21 in described sawtooth portion
Center of circle distance be radius 4.1 times, the center of circle distance of two semi arches 21 being correspondingly arranged in two sawtooth portions is radius
1.1 times " different from embodiment one, other are all identical with embodiment one.
A kind of abnormity nylon-6 fiber, by polyamide 6 section spinneret orifice extrusion on above-mentioned spinneret, it is thus achieved that institute
State abnormity nylon-6 fiber.
The preparation method of a kind of abnormity nylon-6 fiber, is sent the dry section of polyamide 6 that relative viscosity is 2.50 by pipeline
Carry out melting to screw extruder, mixing, compress and extrude, it is thus achieved that polyamide 6 melt, described melted, mixing, compress and squeeze
The temperature gone out is 248 DEG C, 250 DEG C, 253 DEG C, 255 DEG C, 257 DEG C；Described polyamide 6 melt is first passed through dosing pump count
Amount, then filtered by filament spinning component, the then extrusion of the spinneret orifice on above-mentioned spinneret, it is thus achieved that daiamid-6 fiber
Tow, by described daiamid-6 fiber tow successively through monomer suction, cross air blasting cooling, boundling oils, drawing and setting and network are handed over
Network, then winding shaping, the temperature of described cross air blasting cooling is 24 DEG C, and humidity is 75%, and wind speed is 0.50m/s, described boundling
Oil this oil preparation of bamboo that oil preparation is concentration 8% of middle employing, and the temperature of described drawing and setting is 150 DEG C, the winding of described winding
Speed 4600m/min, it is thus achieved that described abnormity nylon-6 fiber.
A kind of abnormity nylon-6 fiber, prepares according to the preparation method of above-mentioned special-shaped nylon-6 fiber.
Refer to Fig. 4, embodiments of the invention four are:
A kind of abnormity nylon-6 fiber, the cross section of described abnormity nylon-6 fiber is broached-tooth design, described broached-tooth design bag
Including two sawtooth portions, described sawtooth portion includes that the semi arch that four radiuses are identical, four described semi arch orders successively are arranged,
And connected by straight line between two adjacent semi arches, two described sawtooth portions are interconnected to form the Guan Bi knot of symmetry
Structure, four semi arches in a sawtooth portion are arranged with four semi arch one_to_one corresponding in another sawtooth portion.In described sawtooth portion
The center of circle distance of adjacent two semi arch be radius 4 times, the circle of two semi arches being correspondingly arranged in two sawtooth portions
1 times that heart distance is radius.
Refer to Fig. 4, embodiments of the invention five are:
A kind of abnormity nylon-6 fiber, only " center of circle distance of adjacent two semi arch in described sawtooth portion is radius
4.2 times, 1.2 times that the center of circle distance of two semi arches being correspondingly arranged in two sawtooth portions is radius " different from embodiment four,
Other are all identical with embodiment four.
Refer to Fig. 4, embodiments of the invention six are:
A kind of abnormity nylon-6 fiber, only " center of circle distance of adjacent two semi arch in described sawtooth portion is radius
4.1 times, 1.1 times that the center of circle distance of two semi arches being correspondingly arranged in two sawtooth portions is radius " different from embodiment four,
Other are all identical with embodiment four.
Refer to Fig. 1-4, embodiments of the invention seven are:
The preparation method of twolip zigzag abnormity nylon-6 fiber, comprises the steps:
Step 1, polyamide 6 full-dull is done section carry out melt spinning, polyamide 6 full-dull dry section viscosity 2.48,
Dry for polyamide 6 full-dull section is delivered to screw extruder is melted, mixing through pipeline, compresses, extrudes, through melt pipe conveying
Entering spinning manifold, screw rod each district temperature is 245 DEG C, 250 DEG C, 252 DEG C, 253 DEG C and 255 DEG C；
Step 2, melt pass through filament spinning component after dosing pump accurate measurement, then extrude through odd-shaped cross section spinneret, carry out
Spinning, spinneret orifice micropore cross section is as it is shown in figure 1, spinneret plate structure is as in figure 2 it is shown, hole count is 7F；
The fibre bundle of step 3, spinneret orifice extrusion cools down through cross air blasting, cross air blasting temperature 23 DEG C, humidity 80%, wind speed
0.45m/s, then oil boundling through oil nozzle, collection spot distance spinneret 180cm, oil concentration 10%, drawn sizing, network are handed over
Winding shaping after network, heat roller temperature 160 DEG C, winding speed 4600m/min, obtain twolip zigzag polyamide 6 special-shaped FDY (40D/
7F)。
Refer to Fig. 1-4, embodiments of the invention eight are:
The preparation method of twolip zigzag abnormity nylon-6 fiber, comprises the steps:
Step 1, polyamide 6 semi-dull is done section carry out melt spinning, polyamide 6 semi-dull dry section viscosity 2.45,
Dry for polyamide 6 semi-dull section is delivered to screw extruder is melted, mixing through pipeline, compresses, extrudes, through melt pipe conveying
Entering spinning manifold, screw rod each district temperature is 245 DEG C, 248 DEG C, 250 DEG C, 253 DEG C, 255 DEG C；
Step 2, melt enter filament spinning component after dosing pump accurate measurement, then extrude through odd-shaped cross section spinneret, carry out
Spinning, spinneret orifice micropore cross section is as it is shown in figure 1, spinneret plate structure is as it is shown on figure 3, hole count is 12F；
The fibre bundle of step 3, spinneret orifice extrusion cools down through cross air blasting, cross air blasting temperature 23 DEG C, humidity 80%, wind speed
0.5m/s, then oil boundling through oil nozzle, collection spot distance spinneret 170cm, oil concentration 10%, by drawing and setting, network
Winding shaping after interlacing, heat roller temperature 165 DEG C, winding speed 4600m/min, obtain twolip zigzag polyamide 6 special-shaped FDY
(70D/12F)。
Performance test
Special-shaped nylon-6 fiber embodiment one to embodiment eight obtained is respectively adopted sample skein winder and carries out fiber number survey
Examination, fully automatic single thread force-machine carry out fracture strength and the elongation at break test of fiber.
Test structure is:
The fiber number of the special-shaped nylon-6 fiber that embodiment one to six obtains is 40.0-80.0dtex, and the fracture strength of fiber is
3.21-3.88cN/dtex, elongation at break is 42.73-47.55%；
The fiber number of the special-shaped nylon-6 fiber (twolip zigzag chinlon 6FDY (40D/7F)) that embodiment seven obtains is
45.0dtex, the fracture strength of fiber is 3.41cN/dtex, and elongation at break is 43.73%；
The fiber number of the special-shaped nylon-6 fiber (twolip zigzag chinlon 6FDY (70D/12F)) that embodiment eight obtains is
78.5dtex, the fracture strength of fiber is 3.63cN/dtex, and elongation at break is 45.45%.
In sum, the fracture strength of special-shaped nylon-6 fiber of present invention offer, elongation at break, oil content, boiling water are stretched
The indexs such as shrinkage all reach the prescribed limit of GB/T16603-2008 " nylon drawn yarn ", and can meet following process and using and want
Ask.
The foregoing is only embodiments of the invention, not thereby limit the scope of the claims of the present invention, every utilize this
The equivalents that bright description and accompanying drawing content are made, or directly or indirectly it is used in relevant technical field, the most in like manner include
In the scope of patent protection of the present invention.
Claims (10)
1. a spinneret, including substrate and the spinneret orifice of at least one, described spinneret orifice is arranged on described substrate, its
Being characterised by, the cross section of described spinneret orifice is broached-tooth design, and described broached-tooth design includes two sawtooth portions, described sawtooth portion
Including the semi arch that four radiuses are identical, four described semi arch orders successively are arranged, and between two adjacent semi arches
Being connected by straight line, two described sawtooth portions are interconnected to form the closing structure of symmetry, four semicircles in a sawtooth portion
Arc is arranged with four semi arch one_to_one corresponding in another sawtooth portion.
Spinneret the most according to claim 1, it is characterised in that the circle of adjacent two semi arch in described sawtooth portion
4-4.2 times that heart distance is radius, the 1-1.2 that the center of circle distance of two semi arches being correspondingly arranged in two sawtooth portions is radius
Times.
Spinneret the most according to claim 1 and 2, it is characterised in that the number of described spinneret orifice is 7-12.
4. a special-shaped nylon-6 fiber, it is characterised in that the cross section of described abnormity nylon-6 fiber is broached-tooth design, described saw
Toothing includes that two sawtooth portions, described sawtooth portion include the semi arch that four radiuses are identical, and the described semi arch of four is successively
Order is arranged, and is connected by straight line between two adjacent semi arches, and the described sawtooth portion of two is interconnected to form symmetry
Closing structure, four semi arch one_to_one corresponding in four semi arches in a sawtooth portion and another sawtooth portion are arranged.
5. the preparation method of a special-shaped nylon-6 fiber, it is characterised in that the polyamide 6 that relative viscosity is 2.40-2.70 is done
Section melts, it is thus achieved that polyamide 6 melt；By described polyamide 6 melt through the spray described in claim 1-3 any one
On filament plate spinneret orifice extrusion, it is thus achieved that daiamid-6 fiber tow, by described daiamid-6 fiber tow successively through monomer suction,
Cross air blasting cooling, boundling oil, drawing and setting and network interlacing, then winding shaping, it is thus achieved that described abnormity nylon-6 fiber.
The preparation method of abnormity nylon-6 fiber the most according to claim 5, it is characterised in that polyamide 6 is done section and carried out
Time melted, polyamide 6 is done simultaneously section carry out mixing, compress and extrude, it is thus achieved that polyamide 6 melt, described melted, mixing,
The temperature of compression and extrusion is 250-270 DEG C.
The preparation method of abnormity nylon-6 fiber the most according to claim 5, it is characterised in that by described polyamide 6 melt
First pass through dosing pump to measure, then filtered by filament spinning component, then through the spray described in claim 1-3 any one
Spinneret orifice extrusion on filament plate.
The preparation method of abnormity nylon-6 fiber the most according to claim 5, it is characterised in that the cooling of described cross air blasting
Temperature is 23-25 DEG C, and humidity is 70-80%, and wind speed is 0.45-0.55m/s.
The preparation method of abnormity nylon-6 fiber the most according to claim 5, it is characterised in that the temperature of described drawing and setting
Degree is for 140-170 DEG C.
The preparation method of abnormity nylon-6 fiber the most according to claim 5, it is characterised in that the winding speed of described winding
Degree 4500-4700m/min.
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| CN107164812A (en) * | 2017-07-03 | 2017-09-15 | 福建锦江科技有限公司 | A kind of special-shaped nylon-6 fiber and preparation method thereof |
| CN108893793A (en) * | 2018-09-06 | 2018-11-27 | 福建锦江科技有限公司 | A kind of spinneret, 6 drafting silk of special-shaped polyamide fibre and preparation method thereof |
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| CN109137104A (en) * | 2018-10-31 | 2019-01-04 | 广东新会美达锦纶股份有限公司 | Linear-shape spinning plate |
| CN115124831A (en) * | 2022-07-22 | 2022-09-30 | 义乌华鼎锦纶股份有限公司 | Cool nylon blend and application thereof |
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