CN103668556B - A kind of hollow blended fiber and its manufacture method and purposes - Google Patents
A kind of hollow blended fiber and its manufacture method and purposes Download PDFInfo
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- CN103668556B CN103668556B CN201210348393.6A CN201210348393A CN103668556B CN 103668556 B CN103668556 B CN 103668556B CN 201210348393 A CN201210348393 A CN 201210348393A CN 103668556 B CN103668556 B CN 103668556B
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Abstract
The invention provides a kind of hollow blended fiber and its production method, the polyamide of soluble copolyester, 60~95 weight % and 0~15 weight % polyvinyl pyrrolidone polymers containing 5~40 weight % in the hollow blended fiber, and the hollow rate of fiber is 10~30%.After fabric is made in the fiber, the dissolution type copolyesters during fiber is got rid of in stripping property processing is carried out under the conditions of appropriate alkali soluble solution, the existing coconnected hollow hole of length direction, there is disconnected micro hole construction again in Fypro in fabric so that fabric has good water-absorbing fast-drying performance；More assign fabric good moisture pick-up properties by polyvinyl pyrrolidone polymers simultaneously.
Description
Technical field
The present invention relates to a kind of hollow blended fiber and its manufacture method and purposes based on polyamide.
Background technology
Fypro is also referred to as nylon fiber, refers to there is amide group on macromolecular chain（-CONH-）Repeat unit gathers
Compound.Fypro has very important application in fibrous woven field, is very important chemical synthetic fiber.Wherein
Nylon 6（Polycaprolactam）And nylon66 fiber（PA 66）It is the major product in nylon.Nylon, particularly nylon 6
With there is highly polar amide group in nylon66 fiber strand, between each other easily formed hydrogen bond, these design features assign nylon,
Particularly nylon 6 and nylon66 fiber is with excellent combination property.
Fypro is one kind in the larger chemical synthetic fiber of intensity, has rub resistance, resist bending deformation, is not easy
Produce wrinkle, it is not hygroscopic, there is the feature such as certain moisture pick-up properties, while Fypro has excellent elasticity (elasticity
Response rate can match in excellence or beauty with wool), it is also light that (Fypro proportion is 1.14, in synthetic fibers are commercialized, is only second to compare
Be less than 1 polypropylene again), rotproofness, be not afraid of and damage by worms, be not afraid of the features such as mouldy, thus in dress material, carpet, towel, artificial skin
Leather, fishing net, setline etc. are widely used in various fields.
Fypro is chemical synthetic fiber, although with certain moisture pick-up properties, to water imbibition or moisture absorption
Property require that the application in higher field has also suffered from limitation.And although natural fiber such as pure cotton has water suction moisture absorption well
Property, but because its water retention is very high, wet transmitting performance is poor, and application also receives restriction.How to make a kind of fiber while have
It can be the target that current many fiber research person and fibre manufacturer man lay siege to have wet high-comfort of water suction-lead.
Variation and the high-grade daily clothes of personalized and manufacture with everyday general purpose, have carried out various trials it is expected
The premium properties that natural fiber has, such as water absorbing properties, water vapour permeability etc. can be reached.Also have in addition to water absorbing properties now
The fabric for having pleasant sensation performance is applied in some high-grade gym suit fields, so as to when wearing gym suit, Neng Goubao
Hold it is comfortable, state can be worn.
For following clothing fabric by towards comfortable, healthy general orientation development, water-absorbing fast-drying fabric is exactly therein important
One of index fabric.Here " water-absorbing fast-drying " is to instigate not hydrophilic fabric while have water imbibition and rapid-drying properties, general next
Say, natural fiber or synthetic fibers are all difficult to take into account both performances.But water-absorbing fast-drying technology can accomplish this
Point.Water-absorbing fast-drying fiber is to utilize fiber surface micropore（Groove）Caused capillarity makes sweat through wicking, spreading,
The effect such as transmission, moves to rapidly fabric face and distributes, so as to reach the purpose of water-absorbing fast-drying.Water-absorbing fast-drying fiber is to have in mind
In the functional fibre of water suction, rapid-curing cutback characteristic and clothes comfortableness.
Water-absorbing fast-drying fiber mainly passes through fiber cross-sectional abnormity, such as trilobal shape, cross shape, to produce capillary at present
Pipe phenomenon, realize water-absorbing fast-drying performance.But water absorbing properties caused by this fiber can't fully meet the demand of customer, need
More preferably there is the functional fibre of wicking function.
The content of the invention
It is an object of the invention to provide a kind of hollow blended fiber, dissolution type copolyesters, polyamide are contained in the fiber, is gathered
Vinylpyrrolidone polymer, after fabric is made in the fiber, stripping property processing is carried out under the conditions of appropriate alkali soluble solution and is got rid of
Dissolution type copolyesters in fiber, the Fypro in fabric form micro hole construction so that fabric has good water suction
Rapid-curing cutback performance；More assign fabric good moisture pick-up properties by polyvinyl pyrrolidone polymers simultaneously.
The technical solution of the present invention is a kind of hollow blended fiber, wherein the solubility containing 5~40 weight % is total to
The polyvinyl pyrrolidone polymers of polyester, 60~95 weight % polyamide and 0~15 weight %, and the hollow rate of fiber is 10
~30%.
It is preferred that the polyvinyl pyrrolidone polymers containing 1.8~15 weight % in hollow blended fiber.
Described polyamide polymer is preferably polycaprolactam amine polymer or is PA 66 polymer, its
There is amide group on macromolecular chain（-CONH-）.
The predominant repeat unit of preferably soluble copolyester of the invention is ethylene glycol terephthalate unit, in copolyesters
Also contain relative to copolyesters total amount be 5~30 weight % polyethylene glycol unit, relative to sour composition total mole number be 1.5~
4.5mol% 5- sodium sulfonates-ethylene isophthalate unit, and 0~10mol% isophthalic acid units.
The molecular weight of the polyethylene glycol unit is 400~10000.
The hollow blended fiber of the present invention can be obtained by following method：Polyamide polymer and polyvinylpyrrolidine will be contained
The parts by weight of the section A60 of ketone polymer~95, with the parts by weight of soluble copolyester section B5~40, uniformly mixing, melting, spray
Go out, hollow spinneret plate spinning, batch, obtain hollow blended fiber, the content of polyvinyl pyrrolidone polymers in the section A
For 0~15 weight %, and the hollow rate of fiber is 10~30%.
In the present invention, soluble copolyester section is pore former, has alkali solubility, its predominant repeat unit is terephthaldehyde
Sour glycol ester unit, also contain in copolyesters relative to the polyethylene glycol unit that copolyesters total amount is 5~30 weight %, relative to
Sour composition total mole number is 1.5~4.5mol% 5- sodium sulfonates-ethylene isophthalate unit, and 0~10mol%
Isophthalic acid units.
Soluble copolyester section B usage amount is 5~40 parts by weight, if measuring more than 40 parts by weight, spinning process
In spinnability it is poor；If if amount is less than 5 parts by weight, blended fiber is after alkali soluble is handled, the fine hole count that is formed in fiber
Deficiency, water-absorbing fast-drying poor-performing.
The content of polyvinyl pyrrolidone polymers is preferably 3~15.8 weight % in the section A.If content is too low,
Moisture pick-up properties is poor；If content is too high, the spinnability in spinning process is poor.
The K values of polyvinyl pyrrolidone polymers are 20~70 in the section A.
Polyvinylpyrrolidone used in the present invention is hygroscopic agent, and its K value is 20~70, preferably 20~60.K values are too low
Even if PVP is mixed in the fibre, because the complexing with polyamide molecule chain described later is very weak, hollow blended fiber passes through water process
When, polyvinylpyrrolidone is largely easy to separate out.So in order to obtain desired highly hygroscopic characteristic, wouling have to will be a large amount of
PVP be mixed into polyamide so that production efficiency decline.In addition, when K values are too high, considerably increase main polymer and gather
The viscosity of acid amides, melting discharge become difficult.
The stripping property polymer of the present invention introduces sulfonate groups in polyester molecule chain, because sulfonate groups are polarity
Hydrophilic radical, there is sucting electronic effect, while change the regularity of polyester molecule chain, be advantageous to oozing for water in process in leaching
Enter and progress that alkali soluble goes out.But by steric hindrance and polar effect that sulfonate groups are formed, cause melt viscosity
Steeply rise, spinnability can be influenceed.Therefore on the premise of polymer alkali soluble performance is kept, soft segment polyethyleneglycol is introduced
Member, the rigidity of the molecule of polymer is substantially improved, improve the spinnability of polymer, while further improve the dissolution of the polymer
Performance.
The present invention by polyamide polymer and polyvinyl pyrrolidone polymers, be copolymerized being total to for dissolution type polyester polymers
Mixed, hollow spinneret plate single composition spinning, is made the hollow blending fiber type that polyamide is main body, then by dissolution post-processing at
Manage, the dissolution type copolyester in removal fiber, the existing coconnected hollow hole of length direction in fiber, have again disconnected fine
Pore structure, while essential characteristic and the polyvinylpyrrolidone polymerization of the strength and elongation of nylon, rub resistance, light etc. are maintained again
The high hygroscopic property that thing is assigned.So that the nylon fabric with water suction absorbing fast-drying performance is manufactured as possibility.This
The hollow blended fiber of invention can apply to prepare water-absorbing fast-drying fiber fabric, and the fabric can be woven fabric, can also
It is braid.After the hollow blended fiber is made into fabric, stripping property processing is carried out under the conditions of appropriate alkali soluble solution and is got rid of
Dissolution type copolyesters in fiber, the hollow Fypro in fabric form micro hole construction so that fabric has good
Water-absorbing fast-drying performance；Alkali decrement treatment is carried out in the NaOH solution that concentration is 1%~5%, bath raio is 100~200.Reduction rate
Control is 5%~40%.
Above-mentioned alkali decrement treatment technique uses common process, and fabric is 1%~5% in concentration, and bath raio is 100~200
NaOH solution in be reduced 20~50min, fabric reduction rate be 5%~40%.Fiber after decrement imparts water absorption of fabrics speed
Dry performance.
More assign fabric good moisture pick-up properties by polyvinyl pyrrolidone polymers simultaneously.
The method of testing for the parameter being related in the present invention is as follows.
1st, polyvinyl pyrrolidone polymers（PVP）Method for detecting
Fiber is dissolved using chloroform, resulting solution uses high-resolution superconduction nuclear magnetic resonance spectrometer, test H spectrums
Belong to C spectrums come the chemical shift to the polymer, confirm molecular structure, judge whether to gather containing polyvinylpyrrolidone
Compound, if containing polyvinylpyrrolidone, its content is calculated by spectrogram.
2nd, polyvinyl pyrrolidone polymers（PVP）K values measure
PVP K values
The aqueous solution that concentration is 1% is made in PVP, its relative viscosity is determined, is tried to achieve using Fikentscher formulas：
logZ-C[75K2/(1+1.5KC)+K]
Wherein Z：Concentration be C aqueous solution relative viscosity,
K：K value × 10-3、
C：Concentration of aqueous solution（W/V%）.
3rd, the test of water absorbing properties
The water absorbing properties of fabric are determined with JIS L1907-5.1.2 methods in the present invention, the test specimen that will vertically hang
Lower end is immersed in water, after placing 10min, determines the lifting height of water（mm）（Measure wicking height）Represent absorption speed.
4th, water evaporation rate determines
The drying property AATCC79 of fabric in the present invention:2000 measure, by 6cm × 6cm style be placed in 20 ± 1 DEG C,
24 hours in the environment of humidity 65 ± 2%, to titrate citing of the mouth of pipe away from sample fabric face 1cm, drop 0.05ml water is in braid
Behind surface（Braid weight in wet base is W0）, be placed in degree of accuracy 0.001g microbalance vacantly test 12 minutes after（Fabric weight is W1）
Its water evaporation rate；
Water evaporation rate=（W0-W1）/0.05×100%.
5th, moisture pick-up properties determines（Hydroscopicity difference Δ MR）：
（1）3 parts of the fabric sample of about 1g weight is chosen, is placed in the measuring cup of known quality, is put into 60 DEG C
In drying machine, bottle cap is taken down, after preparation is dried 30 minutes, bottle cap is covered and takes out measuring cup；
（2）Measuring cup is put into the constant temperature and humidity machine of 20 DEG C × 65%RH environment, takes down bottle cap, balance is after 24 hours, lid
Upper bottle cover, measuring cup is taken out, is weighed using precision balance, the quality that the quality claimed subtracts measuring cup is sample weight W1；
（3）Measuring cup is put into the constant temperature and humidity machine of 30 DEG C × 90%RH environment, takes down bottle cap, balance is after 24 hours, lid
Upper bottle cover, measuring cup is taken out, is weighed using precision balance on the same stage, the quality that the quality claimed subtracts measuring cup is sample weight
W2 ；
（4）Measuring cup is placed in 105 DEG C of drying machine, takes down bottle cap, after drying 2 hours, covered bottle cap and take out, and
In drying basin after normal temperature cooling, weighed using precision balance on the same stage, the quality that the quality claimed subtracts measuring cup is sample weight
Measure W3；
（5）Calculate：
MR1=（W1-W3）/W3
MR2=（W2-W3）/W3
Hydroscopicity difference △ MR（%）=MR2-MR1, as a result take the average value of 3 samples.
6th, hollow rate
By the cross section photo of fiber, the weight and fiber entirety section of hollow bulb are measured using cut paper weighing method
Weight, calculated with following formula；
Hollow rate（%）=（The weight of the weight of hollow bulb/fiber entirety section）×100%.
7th, sem test
The method of testing of micropore/groove dimensions size, by using SEM（SEM：Scanning
Electron Microscope）2000 times of amplifications are carried out to sample to take pictures, accelerating potential 5kV.
Embodiment
With reference to embodiment, the present invention is further illustrated.
Embodiment 1
Fibre-forming polymer is cut into slices 95 parts（Fiber-fonning polymer：Relative viscosity（ηr）3.4 nylon 6 (polycaprolactam)/
Polyvinylpyrrolidone（PVP）=95wt%/5wt%）5 parts of stripping property copolyester section for being 30ppm with section moisture（Altogether
Polymers polyethylene glycol 25wt%, 5- sodium sulfonate-ethylene isophthalate 1.5mol%, M-phthalic acid 0%）Cut into slices
Even blending, by feed bin be sent into screw extruder melted, measured by measuring pump, sprayed by hollow spinneret plate, away from
From being begun to cool down at spinneret 60mm, being wound into fibre, the fiber of 56T polyamide nylons 6 that hollow rate is 21% is obtained.Spinning temperature
280 DEG C, spinning speed 3000m/min, extension speed 4300m/min.
The fiber is subjected to fabric making, fabric is in the sodium hydroxide that concentration is 1%, bath raio is 150（NaOH）Subtract in solution
Amount 45 minutes, fabric reduction rate are 5.4%, have excellent water absorbing properties after decrement, and its measure wicking height is 50~70mm, moisture
Evaporation rate is 75~85%, moisture pick-up properties（ΔMR）3.8%.Electron microscope photo scanning is done to fabric face（SEM is observed）, micropore chi
It is very little to be：0.5 μm~10 μm.
Embodiment 2
Fibre-forming polymer is cut into slices 80 parts（Fiber-fonning polymer：Relative viscosity（ηr）3.4 nylon 6 (polycaprolactam)/
Polyvinylpyrrolidone（PVP）=95wt%/5wt%）20 parts of stripping property copolyester section for being 30ppm with section moisture（Altogether
Polymers polyethylene glycol 25wt%, 5- sodium sulfonate-ethylene isophthalate 1.5mol%, M-phthalic acid 0%）Cut into slices
Even blending, by feed bin be sent into screw extruder melted, measured by measuring pump, sprayed by hollow spinneret plate, away from
From being begun to cool down at spinneret 60mm, being wound into fibre, the fiber of 56T polyamide nylons 6 that hollow rate is 19% is obtained.Spinning temperature
280 DEG C, spinning speed 3000m/min, extension speed 4300m/min.
The fiber is subjected to fabric making, fabric is in the sodium hydroxide that concentration is 1%, bath raio is 150（NaOH）Subtract in solution
Amount 45 minutes, fabric reduction rate are 20.3%, have excellent water absorbing properties after decrement, and its measure wicking height is 70~120mm, water
It is 90~95% to divide evaporation rate, moisture pick-up properties（ΔMR）3.9%.Electron microscope photo scanning is done to fabric face（SEM is observed）, micropore
Size is：0.5 μm~12 μm.
Embodiment 3
Fibre-forming polymer is cut into slices 60 parts（Fiber-fonning polymer：Relative viscosity（ηr）3.4 nylon 6 (polycaprolactam)/
Polyvinylpyrrolidone（PVP）=95wt%/5wt%）40 parts of stripping property copolyester section for being 30ppm with section moisture（Altogether
Polymers polyethylene glycol 25wt%, 5- sodium sulfonate-ethylene isophthalate 1.5mol%, M-phthalic acid 0%）Cut into slices
Even blending, by feed bin be sent into screw extruder melted, measured by measuring pump, sprayed by hollow spinneret plate, away from
From being begun to cool down at spinneret 60mm, being wound into fibre, the fiber of 56T polyamide nylons 6 that hollow rate is 22% is obtained.Spinning temperature
280 DEG C, spinning speed 3000m/min, extension speed 4300m/min.
The fiber is subjected to fabric making, fabric is in the sodium hydroxide that concentration is 1%, bath raio is 150（NaOH）Subtract in solution
Amount 45 minutes, fabric reduction rate are 42.1%, have excellent water absorbing properties after decrement, and its measure wicking height is 80~120mm, water
It is 90~95%, moisture pick-up properties to divide evaporation rate（ΔMR）3.9%.Electron microscope photo scanning is done to fabric face（SEM is observed）, micropore
Size is：0.5 μm~15 μm.
Embodiment 4
Fibre-forming polymer is cut into slices 80 parts（Fiber-fonning polymer：Relative viscosity（ηr）2.9 nylon 6 (polycaprolactam)/
Polyvinylpyrrolidone（PVP）=95wt%/5wt%）20 parts of stripping property copolyester section for being 30ppm with section moisture（Altogether
Polymers polyethylene glycol 25wt%, 5- sodium sulfonate-ethylene isophthalate 1.5mol%, M-phthalic acid 0%）Cut into slices
Even blending, by feed bin be sent into screw extruder melted, measured by measuring pump, sprayed by hollow spinneret plate, away from
From being begun to cool down at spinneret 60mm, being wound into fibre, the fiber of 56T polyamide nylons 6 that hollow rate is 11% is obtained.Spinning temperature
280 DEG C, spinning speed 3000m/min, extension speed 4300m/min.
The fiber is subjected to fabric making, fabric is in the sodium hydroxide that concentration is 1%, bath raio is 150（NaOH）Subtract in solution
Amount 45 minutes, fabric reduction rate are 21.2%, have excellent water suction after decrement（Moisture absorption）Performance, its measure wicking height be 50~
70mm, water evaporation rate are 80~90%, moisture pick-up properties（ΔMR）4.2%.Electron microscope photo scanning is done to fabric face（SEM is seen
Survey）, micropore size is：0.5 μm~12 μm.
Embodiment 5
Fibre-forming polymer is cut into slices 80 parts（Fiber-fonning polymer：Relative viscosity（ηr）3.8 nylon 6 (polycaprolactam)/
Polyvinylpyrrolidone（PVP）=95wt%/5wt%）20 parts of stripping property copolyester section for being 30ppm with section moisture（Altogether
Polymers polyethylene glycol 25wt%, 5- sodium sulfonate-ethylene isophthalate 1.5mol%, M-phthalic acid 0%）Cut into slices
Even blending, by feed bin be sent into screw extruder melted, measured by measuring pump, sprayed by hollow spinneret plate, away from
From being begun to cool down at spinneret 60mm, being wound into fibre, the fiber of 56T polyamide nylons 6 that hollow rate is 28% is obtained.Spinning temperature
280 DEG C, spinning speed 3000m/min, extension speed 4300m/min.
The fiber is subjected to fabric making, fabric is in the sodium hydroxide that concentration is 1%, bath raio is 150（NaOH）Subtract in solution
Amount 45 minutes, fabric reduction rate are 21.2%, have excellent water suction after decrement（Moisture absorption）Performance, its measure wicking height be 50~
70mm, water evaporation rate are 80~90%, moisture pick-up properties（ΔMR）4.2%.Electron microscope photo scanning is done to fabric face（SEM is seen
Survey）, micropore size is：0.5 μm~12 μm.
Embodiment 6
Fibre-forming polymer is cut into slices 80 parts（Fiber-fonning polymer：Relative viscosity（ηr）3.4 nylon 6 (polycaprolactam)）
20 parts of stripping property copolyester section for being 30ppm with section moisture（Copolymer polyethylene glycol 25wt%, 5- sodium sulfonate-isophthalic
Naphthalate 1.5mol%, M-phthalic acid 0%）Section homogeneous blend is carried out, screw extruder is sent into by feed bin and enters
Row melting, is measured by measuring pump, is sprayed by hollow spinneret plate, begun to cool down apart from spinneret 60mm, be wound into fibre,
Obtain the fiber of 56T polyamide nylons 6 that hollow rate is 21%.280 DEG C of spinning temperature, spinning speed 3000m/min, extension speed
Spend for 4300m/min.
The fiber is subjected to fabric making, fabric is in the sodium hydroxide that concentration is 1%, bath raio is 150（NaOH）Subtract in solution
Amount 45 minutes, fabric reduction rate are 21.2%, have excellent water suction after decrement（Moisture absorption）Performance, its measure wicking height be 50~
70mm, water evaporation rate are 80~90%, moisture pick-up properties（ΔMR）2.1%.Electron microscope photo scanning is done to fabric face（SEM is seen
Survey）, micropore size is：0.5 μm~12 μm.
Embodiment 7
Fibre-forming polymer is cut into slices 80 parts（Fiber-fonning polymer：Relative viscosity（ηr）3.4 nylon 6 (polycaprolactam)/
Polyvinylpyrrolidone（PVP）=85wt%/15wt%）20 parts of stripping property copolyester section for being 30ppm with section moisture
（Copolymer polyethylene glycol 25wt%, 5- sodium sulfonate-ethylene isophthalate 1.5mol%, M-phthalic acid 0%）Cut into slices
Homogeneous blend, it is sent into screw extruder by feed bin and is melted, measured by measuring pump, sprayed by hollow spinneret plate,
Begun to cool down at spinneret 60mm, be wound into fibre, obtain the fiber of 56T polyamide nylons 6 that hollow rate is 18%.Spinning temperature
280 DEG C of degree, spinning speed 3000m/min, extension speed 4300m/min.
The fiber is subjected to fabric making, fabric is in the sodium hydroxide that concentration is 1%, bath raio is 150（NaOH）Subtract in solution
Amount 45 minutes, fabric reduction rate are 21.2%, have excellent water suction after decrement（Moisture absorption）Performance, its measure wicking height be 50~
70mm, water evaporation rate are 80~90%, moisture pick-up properties（ΔMR）6.1%.Electron microscope photo scanning is done to fabric face（SEM is seen
Survey）, micropore size is：0.5 μm~12 μm.
Embodiment 8
Fibre-forming polymer is cut into slices 80 parts（Fiber-fonning polymer：Relative viscosity（ηr）3.4 nylon66 fiber (polyadipate oneself
Diamines)/polyvinylpyrrolidone（PVP）=95wt%/5wt%）The stripping property copolyester section for being 30ppm with section moisture
20 parts（Copolymer polyethylene glycol 25wt%, 5- sodium sulfonate-ethylene isophthalate 1.5mol%, M-phthalic acid 0%）Carry out
Section homogeneous blend, it is sent into screw extruder by feed bin and is melted, measured by measuring pump, sprayed by hollow spinneret plate
Go out, begun to cool down at spinneret 60mm, be wound into fibre, obtain the fiber of 56T polyamide nylons 66 that hollow rate is 19%.Spin
290 DEG C of temperature of silk, spinning speed 3000m/min, extension speed 4300m/min.
The fiber is subjected to fabric making, fabric is in the sodium hydroxide that concentration is 1%, bath raio is 150（NaOH）Subtract in solution
Amount 45 minutes, fabric reduction rate are 21.0%, have excellent water suction after decrement（Moisture absorption）Performance, its measure wicking height be 50~
70mm, water evaporation rate are 80~90%, moisture pick-up properties（ΔMR）3.8%.Electron microscope photo scanning is done to fabric face（SEM is seen
Survey）, micropore size is：0.5 μm~12 μm.
Comparative example 1
Polyamide nylon 6 (poly- (ε caprolactams)) is cut into slices 100 parts, being sent into screw extruder by feed bin is melted,
Measured by measuring pump, sprayed by hollow spinneret plate, begun to cool down apart from spinneret 60mm, be wound into fibre, in obtaining
Empty rate is 18% fiber of 56T polyamide nylons 6.280 DEG C of spinning temperature, spinning speed 3400m/min, extension speed are
4000m/min。
The fiber is subjected to fabric making, fabric is in the sodium hydroxide that concentration is 1%, bath raio is 150（NaOH）Subtract in solution
Amount 45 minutes, fabric reduction rate are 0.5%, have excellent water suction after decrement（Moisture absorption）Performance, its measure wicking height be 50~
70mm, water evaporation rate are 80~90%.Electron microscope photo scanning is done to fabric face（SEM is observed）, it is basic fine without finding
Hole.
Comparative example 2
Polyamide nylon 6 (poly- (ε caprolactams)) is cut into slices 50 parts and is copolymerized with section moisture for 30ppm stripping properties
Ester is cut into slices 50 parts（Copolymer polyethylene glycol 25wt%, 5- sodium sulfonate-ethylene isophthalate 1.5mol%, M-phthalic acid
0%）Section homogeneous blend is carried out, being sent into screw extruder by feed bin is melted, and is measured by measuring pump, by spinneret
Plate sprays, cools down, is wound into fibre, obtains the fiber of 56T polyamide nylons 6.270 DEG C of spinning temperature, spinning speed 3000m/
Min, extension speed 4300m/min.Fibre-forming performance is poor.
Comparative example 3
Fibre-forming polymer is cut into slices 80 parts（Fiber-fonning polymer：Relative viscosity（ηr）3.4 nylon66 fiber (polyadipate oneself
Diamines)/polyvinylpyrrolidone（PVP）=80wt%/20wt%）The stripping property copolyester section for being 30ppm with section moisture
20 parts（Copolymer polyethylene glycol 25wt%, 5- sodium sulfonate-ethylene isophthalate 1.5mol%, M-phthalic acid 0%）Carry out
Section homogeneous blend, it is sent into screw extruder by feed bin and is melted, measured by measuring pump, sprayed by hollow spinneret plate
Go out, begun to cool down at spinneret 60mm, be wound into fibre, fibre-forming performance is poor.
Claims (7)
1. a kind of hollow blended fiber, it is characterized in that：Soluble copolyester containing 5~40 weight % in blended fiber, 60~95
The polyvinyl pyrrolidone polymers of weight % polyamide and 1.8~15 weight %, and the hollow rate of fiber is 10~30%；Institute
The K values for stating polyvinyl pyrrolidone polymers are 20~70；The predominant repeat unit of the soluble copolyester is terephthaldehyde
Sour glycol ester unit, also contain in copolyesters relative to the polyethylene glycol unit that copolyesters total amount is 5~30 weight %, relative to
Sour composition total mole number is 1.5~4.5mol% 5- sodium sulfonates-ethylene isophthalate unit, and 0~10mol%
Isophthalic acid units.
2. hollow blended fiber according to claim 1, it is characterized in that：Described polyamide polymer is polycaprolactam
Polymer is PA 66 polymer.
3. hollow blended fiber according to claim 1, it is characterized in that：The molecular weight of the polyethylene glycol unit is 400
~10000.
4. a kind of manufacture method of the hollow blended fiber described in claim 1, it is characterized in that：Will contain polyamide polymer and
The parts by weight of the section A60 of polyvinyl pyrrolidone polymers~95, it is uniformly mixed with the parts by weight of soluble copolyester section B5~40
Conjunction, melting, ejection, hollow spinneret plate spinning, batch, obtain hollow blended fiber, polyvinylpyrrolidone gathers in the section A
The content of compound is 0~15 weight %, and the hollow rate of fiber is 10~30%.
5. the manufacture method of hollow blended fiber according to claim 4, it is characterized in that：Polyethylene pyrrole in the section A
The content of pyrrolidone polymer is 3~15.8 weight %.
6. the manufacture method of hollow blended fiber according to claim 5, it is characterized in that：Polyethylene pyrrole in the section A
The K values of pyrrolidone polymer are 20~70.
7. application of the hollow blended fiber on water-absorbing fast-drying fiber fabric is prepared described in claim 1.
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| CN105040156B (en) * | 2014-12-17 | 2017-08-08 | 上海凯赛生物技术研发中心有限公司 | Blended fiber and preparation method thereof and the fabric containing the blended fiber |
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