CN106400143B - Nylon66 fiber doughnut and its manufacturing method - Google Patents
Nylon66 fiber doughnut and its manufacturing method Download PDFInfo
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- CN106400143B CN106400143B CN201510467855.XA CN201510467855A CN106400143B CN 106400143 B CN106400143 B CN 106400143B CN 201510467855 A CN201510467855 A CN 201510467855A CN 106400143 B CN106400143 B CN 106400143B
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Abstract
The invention discloses a kind of nylon66 fiber doughnut and its manufacturing methods.The manufacturing method of nylon66 fiber doughnut includes: provide a plurality of nylon 66 resin particles, carry out one melting step, carry out one spit yarn step, carry out a pump step, carry out a cooling step, carry out a boundling oiling step, carry out a drafting step and carry out a crimping procedure, to obtain nylon66 fiber doughnut.Nylon66 fiber doughnut have the advantages that it is light-weighted, made by woven fabric meet it is light-weighted can maintain tearing strength and tensile strength simultaneously, and there is excellent wearability.
Description
Technical field
The invention relates to a kind of nylon 66 fiber, its manufacturing method and its production equipments, and in particular to one
Kind nylon66 fiber doughnut, its manufacturing method and its production equipment.
Background technique
Polyamide (Polyamide；It PA) is the high score being polymerized by the monomer containing carboxyl and amino by amido bond
Son, due to processing procedure is simple, with excellent durability and intensity, be widely used in textile, auto parts, electronic apparatus,
The fields such as food Package, wherein polyamide 66 (also known as resistance to grand 66 or nylon66 fiber) is adipic acid and hexamethylene diamine condensation polymerization
Product, since filament is easily made, subsequent manufactured textile quality is excellent, and becomes the mainstream raw material in field of textiles.
In recent years, prevailing with outdoor activities such as road race, bicycle, mountain-climbing, campings, related drive function cloth market
It rising, the function cloth may include moisture absorbing and sweat releasing, light weight, cool feeling, heat preservation, the sun-proof and/or functions such as wear-resisting according to its purposes,
In order to produce the function cloth of high standard, needed for there is tradition the fiber of circular cross section to be unable to satisfy, various special-shaped sections
Such as "-" type, triangle, cross, Y-shaped, doughnut come into being, wherein doughnut can save raw material, and have
There is light, heat preservation and causes to pay attention to extensively.
The mode of currently manufactured polyamide 66 doughnut is that circular spinning mouth plate is changed to hollow spinning mouth plate, polyamide
66 spinning solution by after hollow spinning mouth plate through too slow cold-zone (being cooled down under calm condition) and cold wind area solidification after, i.e.,
Polyamide 66 doughnut can be formed.However, the spinning solution of polyamide 66 is swollen by that can generate after hollow spinning mouth plate in slow cooling area
Profit, the hollow aperture that excessive swelling will lead to polyamide 66 doughnut is too small, and can not effectively maintain hollow rate.To solve this
One problem, the solution for having dealer's proposition acceleration cooling, such as the distance or shortening polyamide 66 in shortening slow cooling area are hollow
Fiber is maintained hollow rate though this solution can avoid excessive swelling by the time in slow cooling area, however, causing to gather
The intensity of 66 doughnut of amide declines to a great extent.Therefore, it how under the premise of maintaining polyamide 66 doughnut intensity, improves
The hollow rate of polyamide 66 doughnut is the target that related dealer makes great efforts.
Summary of the invention
A purpose of the invention is to provide a kind of manufacturing method of nylon66 fiber doughnut, and manufacturing method is obtained whereby
Nylon66 fiber doughnut hollow rate with higher, and the intensity of nylon66 fiber doughnut can be maintained.
Another object of the present invention, is to provide a kind of nylon66 fiber doughnut, and hollow rate is 8%~12%.Whereby, Buddhist nun
Imperial 66 doughnuts have the advantages that lightweight and can provide heat insulation function, made by woven fabric meet it is light-weighted together
When, tearing strength and tensile strength can be maintained, and there is excellent wearability.
An embodiment according to the present invention provides a kind of manufacturing method of nylon66 fiber doughnut, comprising providing plural number
A nylon 66 resin particle, carry out one melting step, carry out one spit yarn step, carry out a pump step, carry out a cooling step,
A boundling oiling step is carried out, a drafting step is carried out and carries out a crimping procedure.Melting step is to make nylon 66 resin
Grain melting is to form a spinning solution.Spitting yarn step is to make spinning solution by hollow spinning mouth plate, to form the hollow spinning mouth silk of plural number.It takes out
Jia bombardier is that the hollow thermal energy for spinning mouth silk is taken away with air suction mode suddenly, makes hollow spinning mouth silk primary solidification, to form plural number hollow half
Solidify silk.Cooling step is to provide the cooling wind that temperature is 16 DEG C~22 DEG C, cools and solidifies hollow semi-solid preparation silk, multiple to be formed
Number solidification silk.Boundling oiling step is oiled to solidification silk boundling, to form bundle wire.Drafting step is prolonged to bundle wire
It stretches, to form extension silk, wherein drafting step includes one first drawing-off sub-step, one second drawing-off sub-step, a third drawing-off
Sub-step, one the 4th drawing-off sub-step, one the 5th drawing-off sub-step and one the 6th drawing-off sub-step and an oil tanker oil sub-step
Suddenly, the oil tanker sub-step that oils carries out between the first drawing-off sub-step and the second drawing-off sub-step, and the oil tanker sub-step that oils is
It is oiled with an oil tanker group to bundle wire.Crimping procedure is will to extend silk to be wound in column, to obtain nylon66 fiber doughnut.
According to the manufacturing method of 66 doughnut of foregoing nylons, nylon66 fiber can be made also comprising carrying out a viscosity set-up procedure
The sulfuric acid relative viscosity of resin particle is 3.2 to 3.4.
According to the manufacturing method of 66 doughnut of foregoing nylons, nylon66 fiber can be made also comprising carrying out a moisture set-up procedure
The water content of resin particle is 500ppm to 2000ppm.
Another embodiment according to the present invention provides a kind of nylon66 fiber doughnut, is according in foregoing nylons 66
Obtained by the manufacturing method of hollow fiber, wherein the hollow rate of nylon66 fiber doughnut is 8%~12%.
Detailed description of the invention
Fig. 1 is the step flow chart according to the manufacturing method of the nylon66 fiber doughnut of an embodiment of the present invention；
Fig. 2 is the step flow chart of step 170 in Fig. 1；
Fig. 3 is the step flow chart according to the step 170 of another embodiment of the present invention；
Fig. 4 is the step flow chart according to the manufacturing method of the nylon66 fiber doughnut of a further embodiment of the present invention；With
And
Fig. 5 is the production equipment schematic diagram for being painted a kind of nylon66 fiber doughnut according to a further embodiment of this invention；
And
Fig. 6 is the stereoscopic schematic diagram for being painted air extractor in Fig. 5.
Specific embodiment
<manufacturing method of nylon66 fiber doughnut>
The step of please referring to Fig. 1, being the manufacturing method according to the nylon66 fiber doughnut of an embodiment of the present invention stream
Cheng Tu.In Fig. 1, the manufacturing method of nylon66 fiber doughnut includes step 110, step 120, step 130, step 140, step
150, step 160, step 170 and step 180.
Step 110 is to provide a plurality of nylon 66 resin particles.The weight average molecular weight of nylon 66 resin particle can be
30000 to 50000, molecular weight distributing index (polydispersity index；It PDI) can be 1.5~2.5.Nylon 66 resin
The sulfuric acid relative viscosity of particle can be 3.2 to 3.4, when the sulfuric acid relative viscosity of nylon 66 resin particle is less than 3.2, may cause
Made nylon66 fiber doughnut intensity is too low, when nylon 66 resin particle sulfuric acid phase to viscosity be greater than 3.4, may cause
Spinning solution residence time too long and unfavorable spinning in spinning liquid pipeline.The water content of nylon 66 resin particle can be for 500ppm extremely
2000ppm, whereby, the water content of nylon 66 resin particle are moderate, can get preferable spinning physical property, and can reduce fracture of wire and Buddhist nun
The probability of 66 degradation of dragon.
Step 120 is to carry out a melting step, makes nylon 66 resin particle fusion to form a spinning solution, melting step can
It is carried out in extruder with 290 DEG C to 295 DEG C of temperature.When temperature is less than 290 DEG C, extruder electric current becomes larger, nylon 66 resin
Particle fusion is ineffective, and when temperature is greater than 295 DEG C, nylon 66 resin particle is also easy to produce cracking can not spinning.
Step 130 is to carry out one to spit yarn step, makes spinning solution by hollow spinning mouth plate, to form the hollow spinning mouth silk of plural number.
Step 140 is to carry out a pump step, is to take away the hollow thermal energy for spinning mouth silk with air suction mode, makes hollow spinning mouth silk
Primary solidification, to form the hollow semi-solid preparation silk of plural number.Whereby, it can avoid the excessive swelling of hollow spinning mouth silk, and lead to final finished
The hollow aperture of nylon66 fiber doughnut is too small, and can avoid hollow spinning mouth silk rapid cooling, and leads to final finished nylon66 fiber
The intensity of doughnut declines to a great extent.
Step 150 is to carry out a cooling step, is to provide the cooling wind that temperature is 16 DEG C~22 DEG C, makes hollow semi-solid preparation silk
Cooling and solidifying, to form plural number solidification silk.Whereby, the moderate temperature of cooling wind, when temperature be lower than 16 DEG C, easily lead to cooling it is too fast
It influences molecule forward to arrange, when temperature is higher than 22 DEG C, is easily not easy drawing-off due to cooling insufficient.The wind speed of cooling wind can be 0.55m/
S~0.75m/s.
Step 160 be carry out a boundling oiling step, be to solidification silk boundling oil, to form bundle wire, about for consolidate
Change silk to oil as located by prior art, it will not be described here.
Step 170 is to carry out a drafting step, is extended to bundle wire, extends silk to form one.
2 figures please referred to, are the step flow charts of step 170 in Fig. 1, and in Fig. 2, step 170 includes step 171, step
Rapid 172, step 173, step 174, step 175 and step 176.
Step 171 is the first drawing-off sub-step, can be with the revolving speed of 580m/min~780m/min at normal temperature to bundle wire
Extended.Step 172 is the second drawing-off sub-step, can be with the revolving speed of 615m/min~815m/min, 55 DEG C~65 DEG C of temperature
Degree extends bundle wire.Step 173 is third drawing-off sub-step, can be with the revolving speed of 1700m/min~2300m/min, 130
DEG C~150 DEG C of temperature extends bundle wire.Step 174 is the 4th drawing-off sub-step, can be with 2600m/min~3200m/
The revolving speed of min, 200 DEG C~220 DEG C of temperature extend bundle wire.Step 175 is the 5th drawing-off sub-step, can be with
The revolving speed of 2950m/min~3350m/min, 210 DEG C~230 DEG C of temperature extend bundle wire.Step 176 is led for the 6th
Sub-step is stretched, bundle wire can be extended with the revolving speed of 2780m/min~3180m/min, 170 DEG C~190 DEG C of temperature.It is logical
The multistage for crossing step 171 to step 176 extends the intensity that can further promote final finished nylon66 fiber doughnut, and can pass through
Thermal finalization facilitates the hollow rate for stablizing final finished nylon66 fiber doughnut to slow down the internal stress of bundle wire.
Referring to figure 3., it is step flow chart according to the step 170 of another embodiment of the present invention.In Fig. 3, step
170 include step 171a, step 172a, step 173a, step 174a, step 175a, step 176a and step 177a.Step
171a is the first drawing-off sub-step, step 173a is the second drawing-off sub-step, step 174a is third drawing-off sub-step, step
175a is the 4th drawing-off sub-step, step 176a is the 5th drawing-off sub-step, step 177a is the 6th drawing-off sub-step, about
One drawing-off sub-step to the 6th drawing-off sub-step please refers to above, and it will not be described here.The embodiment of Fig. 3 and the implementation of Fig. 2
Mode is compared, and it is to be oiled with an oil tanker group to bundle wire that more step 172a, step 172a, which are that oil tanker oils sub-step,.Pass through
Oil tanker oil sub-step carried out between drawing-off sub-step (be to be carried out between the first, second drawing-off sub-step in the present embodiment,
In other embodiments, can change between other drawing-off sub-steps and carry out), the homogeneity to oil can be reinforced, facilitate bundle wire and exist
The not fragile silk of subsequent drawing-off sub-step is carried out, and yield can be improved.
Please again referring to Fig.1, it is that will extend silk to be wound in a column, to obtain Buddhist nun that step 180, which is to carry out a crimping procedure,
Imperial 66 doughnuts, crimping procedure can be carried out at normal temperature with the revolving speed of 2800m/min~3200m/min.Whereby, nylon can be made
66 doughnuts form a spinning cake, are conducive to subsequent packaging, transport.In addition, by the cooperation of step 170 and step 180,
Physical property needed for final finished nylon66 fiber doughnut can be assigned, such as intensity or stretch rate.
It is the step process according to the manufacturing method of the nylon66 fiber doughnut of a further embodiment of the present invention referring to figure 4.
Figure, compare with the manufacturing method of Fig. 1, Fig. 4 more step 100 and steps 105.
Step 100 is to carry out a viscosity set-up procedure, makes the sulfuric acid relative viscosity 3.2 to 3.4 of nylon 66 resin particle.
When the sulfuric acid phase for the nylon 66 resin particle bought or produced falls in outside aforementioned range k value, step 110 is being carried out
Before, step 100 can be carried out, first to promote the yield of final finished nylon66 fiber doughnut with transitivity.
Step 105 is to carry out a moisture set-up procedure, makes the water content 500ppm of nylon 66 resin particle extremely
2000ppm.When the nylon 66 resin particle water content bought or produced is fallen in outside aforementioned range, step 105 can be first carried out,
To promote the yield of final finished nylon66 fiber doughnut with transitivity.
It please refers to above about step 110 to step 180, is no longer repeated.
<production equipment of nylon66 fiber doughnut>
It referring to figure 5., is to be painted to set according to a kind of production of nylon66 fiber doughnut of a further embodiment of this invention
Standby schematic diagram, can be used to implement the manufacturing method of the nylon66 fiber doughnut of Fig. 1.The production equipment of nylon66 fiber doughnut includes
Extruder 510, spinning liquid pipeline 520, manifold 530, aspirating chamber 540, cooling chamber 550, boundling oiling device 560, drawing-off dress
Set 570 and crimping device 580.Extruder 510 includes pan feeding tub 511 and servo motor 512, spinning liquid pipeline 520 and signature
Machine 510 is connected to out, and 530 one end of manifold and spinning solution pipeline connection 520, the other end include a plurality of hollow spinning mouth plates 531, is taken out
Gas chamber 540 connect with one end that hollow spinning mouth plate 531 is arranged in manifold 530 and connect with an air extractor 541, passes through pumping
Device 541 is evacuated aspirating chamber 540.It is the stereoscopic schematic diagram for being painted air extractor 541 in Fig. 5 referring to Fig. 6, takes out
Device of air 541 includes a plurality of exhaust column 541a and pumping power source 541b, in the present embodiment, the number of exhaust column 541a
Amount is four, and being evacuated power source 541b is water flow pumping side Pu.As shown in figure 5, by the exhaust column 541a's of air extractor 541
Nozzle is set between different hollow spinning mouth plates 531, is conducive to avoid the excessive swelling of hollow spinning mouth silk, and helps to remain final
The hollow rate of finished product nylon66 fiber doughnut.550 one end of cooling chamber is connect with aspirating chamber 540, and is connected with an air supply device 551
It connects, by offer 550 1 temperature of cooling chamber of air supply device 551 be 16 DEG C~22 DEG C, wind speed is the cold of 0.55m/s~0.75m/s
But wind indicates the direction of cooling wind in Fig. 5 with arrow 551a.Boundling oiling device 560 is set to cooling chamber 550 far from aspirating chamber
540 one end, the other end that drafting system 570 is adjacent to the relatively cool room 550 of boundling oiling device 560 (are adjacent to boundling
The one end of oiling device 560 far from cooling chamber 550), in the present embodiment, drafting system 570 includes the first drawing-off wheel group
571, oil tanker group 572, the second drawing-off wheel group 573, third drawing-off wheel group 574, the 4th drawing-off wheel group 575, the 5th drawing-off wheel group 576
And the 6th drawing-off wheel group 577,580 neighbour of crimping device are placed in the other end of the drafting system 570 relative to boundling oiling device 560
(i.e. the one end of drafting system 570 far from boundling oiling device 560), crimping device 580 include column 581.According to the present invention
One embodiment, the height d1 of aspirating chamber 540 can be 15cm to 30cm, and the height d2 of cooling chamber 550 can be 1.5m to 2.1m, borrow
This, is conducive to nylon66 fiber doughnut and is improving hollow rate and maintaining to obtain balance between intensity.An embodiment party according to the present invention
Formula, the second drawing-off wheel 573, third drawing-off wheel group 574, the 4th drawing-off wheel group 575, the 5th drawing-off wheel group 576 and the 6th drawing-off
Wheel group 577 can have both heating function, whereby, can slow down the internal stress of bundle wire by thermal finalization, help to stablize final finished
The hollow rate of nylon66 fiber doughnut.
When manufacturing nylon66 fiber doughnut, nylon 66 resin particle is put into extruder 510 by pan feeding tub 511, is used
For 510 melted nylon of extruder, 66 resin particle to form spinning solution, the temperature of extruder 510 may be set to 290 DEG C to 295 DEG C,
And the screw rod (figure does not disclose) in extruder 510 is driven using servo motor 512, spinning solution is made by 510 extrusion of extruder
Spinning liquid pipeline 520 is flowed into, the temperature of spinning liquid pipeline 520 is controlled at 290 DEG C to 295 DEG C, and spinning solution is avoided to enter spinning
It is solidified because of cooling before case 530.Later, spinning solution flows into manifold 530 by spinning liquid pipeline 520, and passes through hollow spinning mouth
Plate 531, at this point, being evacuated by air extractor 541 to aspirating chamber 540, can take away hollow spinning mouth to form the hollow spinning mouth silk of plural number
The thermal energy of silk, makes hollow spinning mouth silk primary solidification, and to form the hollow semi-solid preparation silk of plural number, the speed of exhaust of air extractor 541 can
For 5m/s~12m/s, the person of connecing cools and solidifies hollow semi-solid preparation silk with cooling wind provided by air supply device 551, to be formed
Plural number solidification silk, and oiled with 560 pairs of solidification silk boundlings of boundling oiling device, to form bundle wire, by drafting system 570
The first drawing-off wheel 571, the second drawing-off wheel group 573, third drawing-off wheel group 574, the 4th drawing-off wheel group 575, the 5th drawing-off wheel group
576 and the 6th drawing-off wheel group 577 bundle wire is extended, and by the oil tanker group 572 in drafting system 570 to bundle wire
It oils, to form extension silk, wherein the revolving speed of the first drawing-off wheel 571 can be 580m/min~780m/min, the second drawing-off wheel group
It can be 55 DEG C~65 DEG C that 573 revolving speed, which can be 615m/min~815m/min, temperature, and the revolving speed of third drawing-off wheel group 574 can be
1700m/min~2300m/min, temperature can be 130 DEG C~150 DEG C, and the revolving speed of the 4th drawing-off wheel group 575 can be 2600m/min
~3200m/min, temperature can be 200 DEG C~220 DEG C, and the revolving speed of the 5th drawing-off wheel group 576 can be 2950m/min~3350m/
Min, temperature can be 210 DEG C~230 DEG C, and the revolving speed of the 6th drawing-off wheel group 577 can for 2780m/min~3180m/min, temperature
It is 170 DEG C~190 DEG C.Finally, being wound in column 581, the revolving speed of crimping device 580 for silk is extended by crimping device 580
It can be 2800m/min~3200m/min, to obtain nylon66 fiber doughnut.
<nylon66 fiber doughnut>
Nylon66 fiber doughnut of the invention can be hollow by the manufacturing method and nylon66 fiber of 66 doughnut of foregoing nylons
Obtained by the production equipment of fiber, the hollow rate of nylon66 fiber doughnut can be 8%~12%, commonly use nylon66 fiber doughnut
Hollow rate is about 1% to 3%, through the invention manufacturing method and production equipment, can be greatly improved in nylon66 fiber doughnut
Empty rate.In addition, the intensity of nylon66 fiber doughnut of the invention can be 7.0g/d~9.0g/d, the rate of stretching can be 20%~26%,
Show that nylon66 fiber doughnut under the premise of with high hollow rate, remains to maintain its intensity, stretches the physical property such as rate.
<embodiment and comparative example>
Embodiment 1: commercially available nylon 66 resin particle is subjected to viscosity set-up procedure, i.e., is placed in nylon 66 resin particle
It dries in bucket, and process heater is heated, temperature is 175 DEG C nitrogen is with 800Nm3The speed of/hr is passed through dry bucket, bucket
Dew point in slot is -20 DEG C, gathers nylon 66 resin particle admittedly, Gu the poly- time is 24 hours, makes nylon 66 resin particle
Sulfuric acid relative viscosity be 3.2 to 3.4.Then, a moisture set-up procedure is carried out, i.e., will carry out the nylon of viscosity set-up procedure
66 resin particles under a nitrogen atmosphere, are dried with 90 DEG C~100 DEG C of temperature, make the water content of nylon 66 resin particle
500ppm to 2000ppm.The nylon 66 resin particle of viscosity set-up procedure and moisture set-up procedure will be carried out with the production of Fig. 5
Equipment carries out spinning, and wherein the temperature of extruder 510 is set as 290 DEG C to 295 DEG C, spinning liquid pipeline 520 and manifold 530
Temperature is set as 290 DEG C to 295 DEG C, and air extractor 541 is evacuated aspirating chamber 540 with the speed of exhaust of 5m/sec~12m/sec,
The cooling wind that cooling device 551 provides 18 DEG C, wind speed is 0.55m/s, the revolving speed of the first drawing-off wheel 571 are 680m/min, second
It is 60 DEG C that the revolving speed of drawing-off wheel group 573, which can be 715m/min, temperature, and the revolving speed of third drawing-off wheel group 574 is 2000m/min, temperature
Degree is 140 DEG C, and the revolving speed of the 4th drawing-off wheel group 575 is 2900m/min, temperature is 210 DEG C, the revolving speed of the 5th drawing-off wheel group 576
It is 220 DEG C for 3150m/min, temperature, the revolving speed of the 6th drawing-off wheel group 577 is 2980m/min, temperature is 180 DEG C, crimping device
580 revolving speed is 3000m/min, obtains the nylon66 fiber doughnut that specification is 235/72, item the step of about embodiment 1 whereby
Part is listed in the table below one.It should be noted that 235 be to represent the due pellet when nylon66 fiber doughnut is solid in foregoing metrics
Buddhist nun (Denier), due to 1 nylon66 fiber doughnut of embodiment be it is hollow, practical pellet Buddhist nun is lower than 235, the reality about embodiment 1
Border pellet Buddhist nun is see following table two.
Comparative example 1: the difference of comparative example 1 and embodiment 1 is the hollow spinning mouth plate 531 of manifold 530 being changed to circle
Shape spins mouth plate (shape and number for spinning spinning hole on mouth plate all change), and air extractor 541 is not used and is evacuated to aspirating chamber 540,
And the oil tanker group 572 being not used in drafting system 570 oils to bundle wire, other step conditions all identical embodiments 1 are identical, and
It is listed in the table below one, obtains the nylon66 fiber solid fibre that specification is 235/68 whereby.
Comparative example 2: the difference of comparative example 2 and embodiment 1 is that air extractor 541, which is not used, is evacuated aspirating chamber 540, and
The oil tanker group 572 being not used in drafting system 570 oils to bundle wire, other step conditions all identical embodiments 1 are identical, and arranges
In following table one, the nylon66 fiber doughnut that specification is 235/72 is obtained whereby.
Embodiment 1, comparative example 1 and comparative example 2 are subjected to practical pellet Buddhist nun, intensity, the measurement for stretching rate and hollow rate,
It is according to ASTM2256 that the measurement mode of middle practical red Buddhist nun, which is according to the specification of ASTM D1907-2010, the measurement mode of intensity,
Specification, stretch rate measurement mode be according to ASTM2256 specification carry out, the measurement mode of hollow rate be using scan-type electricity
Sub- microscope (Scanning Electron Microscope；SEM embodiment 1 and the hollow fibre of 2 nylon66 fiber of comparative example) are obtained
The SEM photograph of section is tieed up, the center bore and maximum outside diameter of nylon66 fiber doughnut, hollow rate (%)=(centre bore are measured
Diameter/maximum outside diameter) * 100%, and result is listed in table two.
As shown in Table 2, the hollow rate of embodiment 1 is much larger than comparative example 2, obvious nylon66 fiber doughnut of the invention
Manufacturing method and production equipment can effectively improve the hollow rate of nylon66 fiber doughnut.The intensity of embodiment 1 better than comparative example 1,
The rate of stretching can match in excellence or beauty comparative example 1, and obvious nylon66 fiber doughnut of the invention can still maintain it with high hollow rate
Intensity and the physical property for stretching rate etc., can match in excellence or beauty with nylon66 fiber solid fibre.
Embodiment 2: the nylon66 fiber doughnut of embodiment 1 is further processed into the air deformation yarn of specification 450/144
(AIR-TEXTURED YARN, ATY), and woven, to obtain the woven fabric through close * filling density for 49*35, through close and filling density
Unit be all item/inch.
The nylon66 fiber solid fibre of comparative example 1: being further processed into the air deformation yarn of specification 500/136 by comparative example 3,
And woven, it is all item/inch through close and filling density unit to obtain the woven fabric through close * filling density for 49*35.
Embodiment 2 and the woven fabric of comparative example 3 are subjected to wearability (Taber Abrasion), tearing strength (Tearing
Strength) and the measurement of tensile strength (Tensile Strength), wherein wearability is according to ASTMD-3884
The specification of (2000cycle) is measured, and tearing strength is measured according to the specification of ISO 13937-2, and tensile strength is
It is measured according to the specification of ISO 13934-1, and measurement is listed in table three.
As shown in Table 3, the woven fabric of embodiment 2 is made into air deformation yarn made of nylon66 fiber doughnut, comparative example 3
Woven fabric be made into air deformation yarn made of nylon66 fiber solid fibre, the red Buddhist nun of 2 air deformation yarn of embodiment is less than comparative example
3, however, 2 woven fabric wearability of embodiment and tearing strength are better than comparative example 3, tensile strength is only slightly inferior to comparative example 3, and obvious
Woven fabric made by invention nylon66 fiber doughnut meet it is light-weighted can maintain tearing strength and tensile strength simultaneously, and
With excellent wearability.
Although the present invention is disclosed above with embodiment, however, it is not to limit the invention, any to be familiar with this skill
Person, without departing from the spirit and scope of the present invention, when can be used for a variety of modifications and variations, therefore protection scope of the present invention is worked as
Subject to the scope of which is defined in the appended claims.
Claims (4)
1. a kind of manufacturing method of nylon66 fiber doughnut, characterized by comprising:
A plurality of nylon 66 resin particles are provided；
A melting step is carried out, makes the nylon 66 resin particle fusion to form a spinning solution；
It carries out one and spits yarn step, make the spinning solution by a hollow spinning mouth plate, to form the hollow spinning mouth silk of plural number；
A pump step is carried out, is to take away the hollow thermal energy for spinning mouth silk with air suction mode, keeps the hollow spinning mouth silk preliminary
Solidification, to form the hollow semi-solid preparation silk of plural number；
A cooling step is carried out, the cooling wind that a temperature is 16 DEG C~22 DEG C is to provide, keeps the hollow semi-solid preparation silk cooling solid
Change, to form plural number solidification silk；
A boundling oiling step is carried out, is to oil to the solidification silk boundling, to form a bundle wire；
A drafting step is carried out, is extended to the bundle wire, extends silk to form one, wherein the drafting step includes one the
One drawing-off sub-step, one second drawing-off sub-step, a third drawing-off sub-step, one the 4th drawing-off sub-step, one the 5th drawing-off
Step and one the 6th drawing-off sub-step and an oil tanker oil sub-step, which oils sub-step in the first drawing-off sub-step
And carried out between the second drawing-off sub-step, the oil tanker sub-step that oils is to be oiled with an oil tanker group to the bundle wire；And
A crimping procedure is carried out, is that the extension silk is wound in a column, to obtain the nylon66 fiber doughnut.
2. the manufacturing method of nylon66 fiber doughnut according to claim 1, which is characterized in that also include:
A viscosity set-up procedure is carried out, the sulfuric acid relative viscosity 3.2 to 3.4 of the nylon 66 resin particle is made.
3. the manufacturing method of nylon66 fiber doughnut according to claim 1, which is characterized in that also include:
A moisture set-up procedure is carried out, the water content 500ppm to 2000ppm of the nylon 66 resin particle is made.
4. a kind of nylon66 fiber doughnut, which is characterized in that it is as described in any one of claims 1 to 3 claim
Obtained by manufacturing method, wherein the hollow rate of the nylon66 fiber doughnut is 8%~12%.
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002038328A (en) * | 2000-07-27 | 2002-02-06 | Teijin Ltd | Apparatus for melt spinning |
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