CN103122514B - A kind of hollow false-twisted textured yarn and production method thereof - Google Patents
A kind of hollow false-twisted textured yarn and production method thereof Download PDFInfo
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Abstract
The invention discloses hollow false-twisted textured yarn and production method thereof, the modified copolyester that its fibre-forming polymer is is Third monomer copolymerization with band side chain and aliphatic dihydroxy alcohol that carbon number is less than 6, and its content accounts for and constitutes the 1～30mol% of copolyesters dihydroxylic alcohols total amount；There is the most through hollow bulb at the center of processed filament, and hollow rate is 2%～8%；This false twist yarn is the section triangular shape of its hollow bulb after damp and hot or dry heat treatment, and hollow rate is 15%～35%.First the present invention prepares preoriented yarn POY or fully oriented filament FOY under conventional spinning process condition, then carries out low temperature false twisting processing, thus prepares hollow false-twisted textured yarn.This fiber obtains in fields such as civilian clothing, sportswear, business wear, interior decoration, bedding, footgear, medical supplies and senior implants expanding application.
Description
Technical field
The present invention relates to a kind of hollow false-twisted textured yarn and production method thereof.
Background technology
Along with Levels of Social Economic Development and the raising of living standards of the people, the requirement to dress ornament is more and more higher.Therewith
Meanwhile, along with the raising of various manufacturing technologies, the production adapting to the various fracture morphology fibers that people require also comes true.Its
In, the fiber material of a kind of lightweight heat-preserving, the most progressively become nearest trend.Owing to it possesses, light weight, warmth retention property be good, moisture absorption
The premium properties such as perspire increasingly to be favored by people.Product is widely used in civilian clothing, sportswear, business wear, room
Interior trim, bedding, footgear, medical supplies and senior implant etc..
In order to realize the effect of lightweight, insulationization, the flexibility of the increased fiber generally used, change fabric tissue etc.
Means, can play certain effect, but, wanting further lightweight, the lightweight of fiber self is the most necessary.But
It is directly to use all kinds of fabrics that hollow precursor is made into, can only obtain the feel as papery, and, pilling resistance
Can be poor.
On the other hand, in order to enable fabric to have bulkiness handle effect, common DTY processing can be used or use
The mixed fiber yarn etc. of high-shrinkage filament and lower shrinkage silk composition generally means, but, the former is due to the imparting crimp property process at silk
Time, the section of its hollow section silk is often extruded, the hollow rate being substantially reduced；The latter is then to produce certain effect
Really, but still the requirement of light weight can not be reached.
Such as, Chinese patent CN1536104A (publication number) proposes the spinning of a kind of fine-denier polyester hollow preoriented yarn
Method and prepared fine-denier hollow polyester fibre thereof.Owing to the hollow rate of this fiber is 25～40%, filament number be 0.2～
1.0 denier, so that this fiber possesses preferable heat-insulating property, and approximate the flexible nature of the fibers such as cotton, hair.But this fiber
Mainly extend silk, this fiber the surface preparing fabric lacks fluffy sense, and, the filament number of this fiber is very thin, its
Hollow wall is the thinnest, is very easy to be extruded in the post-treatment stage and ruptures so that its utilization receives certain restriction.
Japan Patent (speciallyying permit No. 3031155) refer to the processed filament of a kind of hollow section.The hollow of this processed filament
Degree can arrive less than more than 15% 28.8%, this fiber the fabric prepared can sufficiently embody light weight sense.But due to this
Fiber uses twisted filament technique so that the flexible return rate of processed filament is less than 2%, almost close to the effect of precursor, its fabric fluffy
Pine property is not enough, and feel is poor, and application surface still has certain limitation.
On the other hand, in order to promote environmental conservation, reduce energy loss, prepare disperse dyeability under normal pressure and temperature
Fiber, also becomes contemporary important research topic.
Summary of the invention
It is an object of the invention to provide and a kind of possess higher hollow rate, and have both the normal pressure of good lofting effect
Room temperature can dyeability hollow false-twisted textured yarn and production method thereof.
The technical solution of the present invention:
A kind of hollow false-twisted textured yarn, its fibre-forming polymer is with band side chain and aliphatic two that carbon number is less than 6
Unit's alcohol is the modified copolyester of Third monomer copolymerization, and its content account for constitute copolyesters dihydroxylic alcohols total amount 1～
30mol%；There is the most through hollow bulb at the center of described processed filament, and hollow rate is 2%～8%, under its physical characteristic meets
Formula,
A. boiling water shrinkage 8～20%；
B. dry-hot shrinkage 10～25%；
C. crispatura percentage elongation 15～40%.
Described band side chain and the aliphatic dihydroxy alcohol that carbon number is less than 6 are preferably 2-methyl isophthalic acid, 3 propylene glycol, 2,2-
Dimethyl-1,3 propylene glycol, 2-methyl isophthalic acid, 4-butanediol, 2,3-dimethyl-BDO or 2-methyl isophthalic acid, in 5-pentanediol
Any one.Most preferably 2-methyl isophthalic acid, 3 propylene glycol.Selecting 2-methyl isophthalic acid, during 3 propylene glycol, its dyeability and thermostability are the most very
Good.
The fibre-forming polymer that the present invention mentions is the modified copolyester being mainly composed of ethylene glycol terephthalate, band side
The copolymerization amount of chain and aliphatic dihydroxy alcohol that carbon number is less than 6 have to be such that in the glycol component constituting copolyesters and carries
The content of side chain and aliphatic dihydroxy alcohol construction unit that carbon number is less than 6 is 1～30mol%；In this range,
Dyeability and the thermostability of copolyesters are the most fine.Preferably in the range of 6～20mol%, exceed this scope and hold in spinning process
Easily occur wafing the phenomenon of silk.
The hollow false-twisted fiber of the present invention, on fiber cross-sectional, hollow rate is 2%～8%, and hollow bulb is flat
Shape, but it is because using the technique of low temperature false twisting in the false twisting course of processing, the permanent deformation of fiber itself is less, because of
And after this hollow false-twisted fiber is woven into fabric, through damp and hot or dry heat treatment, in fiber cross-sectional, fiber
Sky portion can reply as original triangle from flat, and degree of hollowness can to reply be 15～35%.
The hollow false-twisted fiber that the present invention mentions, on fiber cross-sectional, hollow bulb is flat, flatness be 1.2～
3.0, preferably 1.3～2.0.Because being the doughnut after false twisting is processed, its fracture morphology deforms, from the three of precursor
Angular shape is deformed into flat, and hollow bulb flatness is typically more than 1.2.On the other hand, owing to this fiber is to have hollow bulb,
False twisting adds hollow bulb in man-hour and will easily be compressed deformation, and the size of its deformation can affect the hollow retro after hollow rate and post processing
Effect, according to experimental result, it is the most suitable that flatness controls within 3.0.
The doughnut that the present invention mentions, the section profile of its POY and FOY before carrying out DTY processing is preferably to justify
Shape.Because, when section profile be degree of profile bigger time, spinning is to be easy to fracture of wire, and, extend, that false twisting adds man-hour is the most special
Easily produce filoplume and fracture of wire phenomenon.
The doughnut that the present invention mentions, the hollow space of the section of its POY and FOY before carrying out DTY processing is best
It is in centre, and preferably triangle.It is to say, there is not eccentric phenomena hollow part, because working as hollow part
After there is bias, its hollow wall thickness arises that irregular, is easy to rupture in the post-treatment stage at thin-walled.On the other hand,
The hollow bulb triangular shape of precursor, by the fiber model of the fiber to triangle hollow, circle hollow and square hollow, understands
The difference that after having arrived fiber pressurized, stress, strain, displacement and hollow area change.As a result of which it is, its opposing external force of triangle hollow
Degree is the strongest, and displacement and deformation quantity are minimum, and hollow area change minimum, is the most stable hollow structure.When doughnut exists
Carrying out the extension in later stage, false twisting, weave and during the technique such as dyeing, doughnut can be subjected to all the time contact with filar guide etc. and squeeze
The friction external force pressed and produce, the holding of degree of hollowness is particularly important.
Described fiber is after the heat treatment of 60～180 degree, and on fiber cross-sectional, hollow bulb reverts back to triangle from flat,
And hollow rate is 15～35%.It is usually and this doughnut is made into cloth and silk, then through the heat treatment of 60～180 degree, after process
The hollow rate of doughnut be 10～35%.Its heat treatment temperature preferably 70～170 degree, most preferably 80～150 degree.Whether
Xeothermic or humid heat treatment, during at a temperature below 60 degree, the shrinkage stress of its fabric discharges the most completely so that final molding
Cloth and silk residual shrinkage is excessive, and the fabric dimensional stability that it is made is bad.On the other hand, if its heat treatment temperature is higher than 180
Degree, the shrinkage stress of its fabric can discharge completely, but, the feel of its cloth and silk can be the most hardening, loses good cloth cover soft
Effect.
It addition, the hollow rate of the doughnut after heat treatment is 15～35%, preferably 15～25%.If hollow rate is not enough
10%, in terms of dress material purposes, its light weight and heat insulating ability DeGrain.Dress material fabric, if between fiber or group
There is certain air layer between knitting, then can produce certain heat insulation effect, but, if not almost without empty here in its structure
Gas-bearing formation, heat produced by body temperature can carry out heat convection with air, and heat insulating ability is the lowest.Hollow bulb due to doughnut
Being closed with stable air layer, the direct degree with outside air convection current of heat produced by body temperature can significantly reduce, thus protects
Warm nature significantly improves.Although, hollow rate is the highest, and its light weight degree is the highest, and heat insulating ability effect is the best, but, hollow rate is too high,
Then doughnut can will easily be compressed deformation in false twisting manufacturing procedure, causes non-response deformation so that cloth and silk is in warm
During process, it is impossible to produce good hollow.So, make doughnut squeezed from light weight effect, heat insulating ability effect and dress
Compressive strain loses the aspects such as hollow effect and considers, and its hollow rate is preferably 15～25%.
The production method of the hollow false-twisted textured yarn of the present invention, can be will be with band side under conventional spinning process condition
Chain and the aliphatic dihydroxy alcohol that carbon number is less than 6 are that Third monomer copolymerization forms and its content accounts for composition copolyesters binary
The 1 of alcohol total amount～the modified copolyester of 30mol% through triangle hollow spinneret plate discharge filamentation, and 2000～3500m/min
Preparing preoriented yarn POY under coiling speed, under conditions of multiplying power 1.55～2.5, temperature 120～180 DEG C, deep processing obtains
Extend silk DT, then will extend over a DT and carry out false twisting processing under the conditions of multiplying power 1.05～1.3, processing temperature 60～100 DEG C, thus
Prepare hollow false-twisted textured yarn.
The production method of the hollow false-twisted textured yarn of the present invention, it is also possible to be will be with band under conventional spinning process condition
Side chain and the aliphatic dihydroxy alcohol that carbon number is less than 6 are that Third monomer copolymerization forms and its content accounts for composition copolyesters two
Unit the 1 of alcohol total amount～the modified copolyester of 30mol% are through triangle hollow spinneret plate discharge filamentation, 3501～5000m/min
Prepare fully oriented filament FOY under coiling speed, under the conditions of multiplying power 1.05～1.3, processing temperature 60～100 DEG C, carry out false twisting add
Work, thus prepare hollow false-twisted textured yarn.
In detail, the hollow false-twisted fiber of the present invention, by polymer through three under conventional spinning process condition
Angle hollow spinneret plate discharge filamentation, and under the coiling speed of 2000～3500m/min prepare preoriented yarn hollow rate be 15～
The POY of 40%, under conditions of multiplying power 1.55～2.5, temperature 120～180 DEG C, deep processing obtains extending silk DT, then will extend over
Silk DT in multiplying power 1.05～1.3, carries out false twisting processing under the conditions of processing temperature 60～100 DEG C, thus prepares hollow false twisting processing
Fiber.
The hollow false-twisted fiber of the present invention can also, under conventional spinning process condition by polymer in triangle
Empty spinneret discharge filamentation, prepares the fully oriented filament that hollow rate is 15～40% under the coiling speed of 3501～5000m/min
FOY, in multiplying power 1.05～1.3, carries out false twisting processing under the conditions of processing temperature 60～100 DEG C, thus prepares hollow false twisting processing
Fiber.
Triangle hollow spinneret plate mentioned here, refers to the hollow bulb triangular shape of spinneret orifice or similar triangle.
It addition, the hollow false-twisted fiber of the present invention, method described above prepares, can be by preoriented yarn POY at height
Extend under multiplying power and make extension silk DT, prepare after carrying out false twisting processing the most again, it is also possible to by fully oriented filament FOY under low range
Directly extend false twisting processing to prepare；Because the strand extending the fibrous inside of silk DT and fully oriented filament FOY has good taking
Xiang Du, thus the false-twisted fiber obtained after false twisting processing, although hollow rate is not the highest, but through damp and hot or xeothermic
After process, its hollow shape being compressed by can be recovered, and hollow rate obtains the biggest reduction.Further, since fully oriented filament FOY
Fiber in molecular chain orientation more perfect, its DTY adds can use higher temperature man-hour, meanwhile, its processing stability also than
More excellent, it is processed as preferentially so using fully oriented filament FOY to extend false twisting under low range.
The processing method that the present invention mentions, the temperature of its false twisting processing, compared with conventional processing temperature, belongs to low temperature false
Twisting with the fingers processing category, its temperature is 60～100 DEG C, preferably 70～90 DEG C.When processing temperature is below 60 DEG C, its temperature and fiber
The vitrification point of forming polymer is closer to, the dyskinesia of molecule segment, the volume of the false twist yarn that its processing prepares
Contracting is the most not enough, approximates and extends silk, losing the meaning of false twisting processing.On the other hand, 100 DEG C are reached when false twisting processing temperature
Above, its temperature is sufficient so that molecule segment sufficient movement, and due to the rotation of navel so that fiber produces in hot tank
Twist with the fingers to, and at this temperature so that this sth. made by twisting is to extruded hollow fiber so that it is produce non-response deformation, thus, by it
The fabric knitted after heat treatment, also cannot reply hollow effect.Therefore, the processing temperature of this hollow false-twisted fiber is optimum
More than the vitrification point of the fiberizing polymer of the choosing scope of 20～30 DEG C.
The hollow false-twisted fiber of the present invention is used on civilian clothing, sportswear, business wear, interior decoration, bed
The fields such as product, footgear, medical supplies and senior implant obtain expanding application.Fabric can be made by known method, its
Finished product has good dyeability and higher thermostability, and has good lofting effect and thermal property.
Accompanying drawing explanation
Fig. 1 is the microscope section description figure of the hollow false-twisted textured yarn of the present invention.
Fig. 2 is the microscope section description figure of the hollow false-twisted textured yarn through damp and hot or dry heat treatment.
Fig. 3 is the hollow type spinneret shape graph used in the present invention.
Detailed description of the invention
Value in below example is to use following method to measure.
(1) boiling water shrinkage
A) yarn sampling 10 circle × 1m/ circle, naturally droops yarn and is suspended on temperature 25 DEG C, adjusts in the environment of humidity 60%
Wet 12 hours.
B) surveying on long table, yarn is being hung and determines grammes per square metre G, measure former long L
G=D × 0.9 × 0.1 × the number of turns × 2 (D: denier count as received)
C) being bound up with gauze by the yarn surveyed in the water being placed on 100 DEG C, keeping water temperature is 100 DEG C, 30min.
D) by gauze and yarn natural cooling, then take out yarn and hang over temperature 25 DEG C, damping in the environment of humidity 60%
12 hours.
E) yarn that damping is good hangs determines grammes per square metre G, measures L1.Damp and hot shrinkage factor is calculated: damp and hot contraction according to following equation
Rate=(L-L1)/L × 100%
(2) dry-hot shrinkage
A) yarn sampling 10 circle × 1m/ circle, naturally droops yarn and is suspended on temperature 25 DEG C, adjusts in the environment of humidity 60%
Wet 12 hours.
B) surveying on long table, yarn is being hung and determines grammes per square metre G, measure former long L
G=D × 0.9 × 0.1 × the number of turns × 2 (D: denier count as received)
C) being placed in thermostatic drying chamber by the yarn surveyed, in holding case, temperature is 180 DEG C, 15min.D) yarn is the coldest
But, temperature 25 DEG C after taking-up, is hung over, damping 12 hours in the environment of humidity 60%.
E) yarn that damping is good hangs determines grammes per square metre G, measures L1.Damp and hot shrinkage factor is calculated: damp and hot contraction according to following equation
Rate=(L-L1)/L × 100%
(3) crispatura percentage elongation
A) yarn sampling 10 circle × 1m/ circle, naturally droops yarn and is suspended on temperature 25 DEG C, humidity
Damping 12 hours in the environment of 60%.
B) yarn is bound up with gauze, be placed in 90 DEG C of thermostatic water bath holding 20min.
C) by yarn and yarn natural cooling, temperature 25 DEG C is hung over after being taken out by yarn, damping 12 in the environment of humidity 60%
Hour.
D) yarn is hung in the measurement tank filling water, first suspension just loading+determine loading, after keeping 2min, read length
L。
Just loading=0.002g/d × D × 2 × volume number
Determine loading=0.1g/d × D × 2 × volume number
Then will determine loading remove, keep just load state to hang 2min, read length L1.Measure according to formula below:
Crispatura percentage elongation=(L-L1)/L × 100%
Following example are not construed as limiting thereof.
Embodiment 1
Screw rod is passed through in the MPO that copolyesters dihydroxylic alcohols total amount the is 5mol% section less than 100ppm of the moisture after vacuum drying
Extruder, extruder each district temperature is 275 DEG C, 280 DEG C, 285 DEG C, is allowed to molten condition, flows into dosing pump, accurately presses after metering
Enter in assembly；
Using hollow spinneret plate spinning, spinneret hole depth is 100mm, is cooled down by cross air blasting, and pathogenic wind-warm is 20 DEG C, and wind speed is
20m/min, sets winding speed as 2500m/min, and control fiber number is 160dtex/36F, obtains hollow preoriented yarn POY.
Extending the hollow preoriented yarn POY of winding, a heat roller temperature is 90 DEG C, and two hot-rollings are 130 DEG C, extends
Multiplying power 1.75, coiling speed 800m/min, obtaining fiber number is that 95dtex/36F obtains hollow extension silk.
The hollow extension silk of winding being carried out false twisting, uses low temperature false twisting, false twisting machine one heater temperature is set to 100
DEG C, multiplying power 1.05, coiling speed 450m/min, obtain the hollow false-twisted textured yarn that fiber number is 90dtex/36F, hollow rate is
2.0%.The boiling water shrinkage of yarn is: 9%, and dry-hot shrinkage is: 12%, and percentage elongation of crispaturaing is: 18%.Make with this fiber
After fabric or volume thing, after carrying out dry heat treatment, hollow rate is 23%.Concrete numerical value is shown in Table 1.
Embodiment 2
Screw rod is passed through in the MPO that copolyesters dihydroxylic alcohols total amount the is 5mol% section less than 100ppm of the moisture after vacuum drying
Extruder, extruder each district temperature is 275 DEG C, 280 DEG C, 285 DEG C, is allowed to molten condition, flows into dosing pump, accurately presses after metering
Enter in assembly；
Using hollow spinneret plate spinning, spinneret hole depth is 100mm, is cooled down by cross air blasting, and pathogenic wind-warm is 20 DEG C, and wind speed is
20m/min, sets winding speed as 2500m/min, and control fiber number is 160dtex/36F, obtains hollow preoriented yarn POY.
Extending the hollow preoriented yarn POY of winding, a heat roller temperature is 90 DEG C, and two hot-rollings are 130 DEG C, multiplying power
1.75, coiling speed 800m/min, obtaining fiber number is that 95dtex/36F obtains hollow extension silk.
The hollow extension silk of winding being carried out false twisting, uses low temperature false twisting, false twisting machine one heater temperature is set to 100
DEG C, multiplying power 1.11, coiling speed 450m/min, obtain the hollow false-twisted textured yarn that fiber number is 90dtex/36F, hollow rate is
2.5%.The boiling water shrinkage of yarn is: 9%, and dry-hot shrinkage is: 11%, and percentage elongation of crispaturaing is: 20%.Make with this fiber
After fabric or volume thing, after carrying out dry heat treatment, hollow rate is 24%.Concrete numerical value is shown in Table 1.
Embodiment 3
Screw rod is passed through in the MPO that copolyesters dihydroxylic alcohols total amount the is 5mol% section less than 100ppm of the moisture after vacuum drying
Extruder, extruder each district temperature is 275 DEG C, 280 DEG C, 285 DEG C, is allowed to molten condition, flows into dosing pump, accurately presses after metering
Enter in assembly；
Using hollow spinneret plate spinning, spinneret hole depth is 100mm, is cooled down by cross air blasting, and pathogenic wind-warm is 20 DEG C, and wind speed is
20m/min, sets winding speed as 2500m/min, and control fiber number is 160dtex/36F, obtains hollow preoriented yarn POY.
Extending the hollow preoriented yarn POY of winding, a heat roller temperature is 90 DEG C, and two hot-rollings are 130 DEG C, multiplying power
1.75, coiling speed 800m/min, obtaining fiber number is that 95dtex/36F obtains hollow extension silk.
The hollow extension silk of winding being carried out false twisting, uses low temperature false twisting, false twisting machine one heater temperature is set to 100
DEG C, multiplying power 1.25, coiling speed 450m/min, obtain the hollow false-twisted textured yarn that fiber number is 90dtex/36F, hollow rate is
2.6%.The boiling water shrinkage of yarn is: 8%, and dry-hot shrinkage is: 12%, and percentage elongation of crispaturaing is: 21%.Make with this fiber
After fabric or volume thing, after carrying out dry heat treatment, hollow rate is 26%.Concrete numerical value is shown in Table 1.
Embodiment 4
Spiral shell is passed through in the MPO that copolyesters dihydroxylic alcohols total amount the is 10mol% section less than 100ppm of the moisture after vacuum drying
Bar extruder, extruder each district temperature is 275 DEG C, 280 DEG C, 285 DEG C, is allowed to molten condition, flows into dosing pump, accurately after metering
In press-in assembly；
Using hollow spinneret plate spinning, spinneret hole depth is 100mm, is cooled down by cross air blasting, and pathogenic wind-warm is 20 DEG C, and wind speed is
20m/min, sets winding speed as 4000m/min, and a heat roller temperature is 90 DEG C, and two heat roller temperatures are 145 DEG C, speed between two hot-rollings
Degree ratio two hot-rollings a: hot-rolling is 2.25.Control fiber number is 95dtex/36F, obtains hollow fully oriented filament FOY.
The hollow extension silk FOY of winding being carried out false twisting, uses low temperature false twisting, false twisting machine one heater temperature is set to 60
DEG C, two heater temperatures are room temperature, multiplying power 1.05, coiling speed 450m/min, obtain the hollow false twisting that fiber number is 90dtex/36F
Processed filament, hollow rate is 2.7%.The boiling water shrinkage of yarn is: 9%, and dry-hot shrinkage is: 13%, and percentage elongation of crispaturaing is:
19%.After making fabric with this fiber or compile thing, carrying out dry heat treatment, hollow rate is 25%.Concrete numerical value is shown in Table 1.
Embodiment 5
Spiral shell is passed through in the MPO that copolyesters dihydroxylic alcohols total amount the is 10mol% section less than 100ppm of the moisture after vacuum drying
Bar extruder, extruder each district temperature is 275 DEG C, 280 DEG C, 285 DEG C, is allowed to molten condition, flows into dosing pump, accurately after metering
In press-in assembly；
Using hollow spinneret plate spinning spinneret hole depth is 100mm, is cooled down by cross air blasting, and pathogenic wind-warm is 20 DEG C, and wind speed is
20m/min, sets winding speed as 4000m/min, and a heat roller temperature is 90 DEG C, and two heat roller temperatures are 145 DEG C, speed between two hot-rollings
Degree ratio two hot-rollings a: hot-rolling is 2.25.Control fiber number is 95dtex/36F, obtains hollow fully oriented filament FOY.
The hollow extension silk FOY of winding is carried out false twisting, uses low temperature false twisting, false twisting machine one heater temperature is set to
70 DEG C, two heater temperatures are room temperature, multiplying power 1.05, coiling speed 450m/min, obtain the hollow that fiber number is 90dtex/36F false
Twisting with the fingers processed filament, hollow rate is 2.5%.The boiling water shrinkage of yarn is: 10%, and dry-hot shrinkage is: 14%, percentage elongation of crispaturaing
For: 21%.After making fabric with this fiber or compile thing, carrying out dry heat treatment, hollow rate is 24%.Concrete numerical value is shown in Table 1.
Embodiment 6
Spiral shell is passed through in the MPO that copolyesters dihydroxylic alcohols total amount the is 15mol% section less than 100ppm of the moisture after vacuum drying
Bar extruder, extruder each district temperature is 275 DEG C, 280 DEG C, 285 DEG C, is allowed to molten condition, flows into dosing pump, accurately after metering
In press-in assembly；Concrete numerical value is shown in Table 1.
Using hollow spinneret plate spinning, spinneret hole depth 100mm, cooled down by cross air blasting, pathogenic wind-warm is 20 DEG C, and wind speed is
20m/min, sets winding speed as 4000m/min, and a heat roller temperature is 90 DEG C, and two heat roller temperatures are 145 DEG C, speed between two hot-rollings
Degree ratio two hot-rollings a: hot-rolling is 2.25.Control fiber number is 95dtex/36F, obtains hollow fully oriented filament FOY.
The hollow extension silk FOY of winding being carried out false twisting, uses low temperature false twisting, false twisting machine one heater temperature is set to 80
DEG C, two heater temperatures are room temperature, multiplying power 1.05, coiling speed 450m/min, obtain the hollow false twisting that fiber number is 90dtex/36F
Processed filament, hollow rate is 2.9%.The boiling water shrinkage of yarn is: 10%, and dry-hot shrinkage is: 13%, and percentage elongation of crispaturaing is:
22%.After making fabric with this fiber or compile thing, carrying out dry heat treatment, hollow rate is 22%.Concrete numerical value is shown in Table 1.
Embodiment 7
Spiral shell is passed through in the MPO that copolyesters dihydroxylic alcohols total amount the is 15mol% section less than 100ppm of the moisture after vacuum drying
Bar extruder, extruder each district temperature is 275 DEG C, 280 DEG C, 285 DEG C, is allowed to molten condition, flows into dosing pump, accurately after metering
In press-in assembly；
Using hollow spinneret plate spinning, spinneret hole depth 100mm, cooled down by cross air blasting, pathogenic wind-warm is 20 DEG C, and wind speed is
20m/min, sets winding speed as 4000m/min, and a heat roller temperature is 90 DEG C, and two heat roller temperatures are 145 DEG C, speed between two hot-rollings
Degree ratio two hot-rollings a: hot-rolling is 2.25.Control fiber number is 95dtex/36F, obtains hollow fully oriented filament FOY.
The hollow extension silk FOY of winding being carried out false twisting, uses low temperature false twisting, false twisting machine one heater temperature is set to 90
DEG C, two heater temperatures are room temperature, multiplying power 1.05, coiling speed 450m/min, obtain the hollow false twisting that fiber number is 90dtex/36F
Processed filament, hollow rate is 3.0%.The boiling water shrinkage of yarn is: 9%, and dry-hot shrinkage is: 13%, and percentage elongation of crispaturaing is:
21%.After making fabric with this fiber or compile thing, carrying out dry heat treatment, hollow rate is 25%.Concrete numerical value is shown in Table 1.
Embodiment 8
Spiral shell is passed through in the MPO that copolyesters dihydroxylic alcohols total amount the is 20mol% section less than 100ppm of the moisture after vacuum drying
Bar extruder, extruder each district temperature is 275 DEG C, 280 DEG C, 285 DEG C, is allowed to molten condition, flows into dosing pump, accurately after metering
In press-in assembly；
Using hollow spinneret plate spinning, spinneret hole depth 100mm, cooled down by cross air blasting, pathogenic wind-warm is 20 DEG C, and wind speed is
20m/min, sets winding speed as 4000m/min, and a heat roller temperature is 90 DEG C, and two heat roller temperatures are 145 DEG C, speed between two hot-rollings
Degree ratio two hot-rollings a: hot-rolling is 2.25.Control fiber number is 95dtex/36F, obtains hollow fully oriented filament FOY.
The hollow extension silk FOY of winding being carried out false twisting, uses low temperature false twisting, false twisting machine one heater temperature is set to
100 DEG C, two heater temperatures are room temperature, multiplying power 1.05, coiling speed 450m/min, obtain the hollow that fiber number is 90dtex/36F false
Twisting with the fingers processed filament, hollow rate is 3.1%.The boiling water shrinkage of yarn is: 9%, and dry-hot shrinkage is: 13%, and percentage elongation of crispaturaing is:
22%.After making fabric with this fiber or compile thing, carrying out dry heat treatment, hollow rate is 23%.Concrete numerical value is shown in Table 1.
Embodiment 9
Spiral shell is passed through in the MPO that copolyesters dihydroxylic alcohols total amount the is 20mol% section less than 100ppm of the moisture after vacuum drying
Bar extruder, extruder each district temperature is 275 DEG C, 280 DEG C, 285 DEG C, is allowed to molten condition, flows into dosing pump, accurately after metering
In press-in assembly；
Using hollow spinneret plate spinning, spinneret hole depth 100mm, cooled down by cross air blasting, pathogenic wind-warm is 20 DEG C, and wind speed is
20m/min, sets winding speed as 4000m/min, and a heat roller temperature is 90 DEG C, and two heat roller temperatures are 145 DEG C, speed between two hot-rollings
Degree ratio two hot-rollings a: hot-rolling is 2.25.Control fiber number is 95dtex/36F, obtains hollow fully oriented filament FOY.
The hollow extension silk FOY of winding being carried out false twisting, uses low temperature false twisting, false twisting machine one heater temperature is set to
100 DEG C, two heater temperatures are room temperature, multiplying power 1.05, coiling speed 450m/min, obtain the hollow that fiber number is 90dtex/36F false
Twisting with the fingers processed filament, hollow rate is 2.5%.The boiling water shrinkage of yarn is: 10%, and dry-hot shrinkage is: 14%, percentage elongation of crispaturaing
For: 20%.After making fabric with this fiber or compile thing, carrying out dry heat treatment, hollow rate is 24%.Concrete numerical value is shown in Table 1.
Embodiment 10
Spiral shell is passed through in the MPO that copolyesters dihydroxylic alcohols total amount the is 25mol% section less than 100ppm of the moisture after vacuum drying
Bar extruder, extruder each district temperature is 275 DEG C, 280 DEG C, 285 DEG C, is allowed to molten condition, flows into dosing pump, accurately after metering
In press-in assembly；
Using hollow spinneret plate spinning, spinneret hole depth 100mm, cooled down by cross air blasting, pathogenic wind-warm is 20 DEG C, and wind speed is
20m/min, sets winding speed as 4000m/min, and a heat roller temperature is 90 DEG C, and two heat roller temperatures are 145 DEG C, speed between two hot-rollings
Degree ratio two hot-rollings a: hot-rolling is 2.25.Control fiber number is 95dtex/36F, obtains hollow fully oriented filament FOY.
The hollow extension silk FOY of winding being carried out false twisting, uses low temperature false twisting, false twisting machine one heater temperature is set to
100 DEG C, two heater temperatures are room temperature, multiplying power 1.15, coiling speed 450m/min, obtain the hollow that fiber number is 90dtex/36F false
Twisting with the fingers processed filament, hollow rate is 2.8%.The boiling water shrinkage of yarn is: 8%, and dry-hot shrinkage is: 12%, and percentage elongation of crispaturaing is:
22%.After making fabric with this fiber or compile thing, carrying out dry heat treatment, hollow rate is 25%.Concrete numerical value is shown in Table 1.
Embodiment 11
Spiral shell is passed through in the MPO that copolyesters dihydroxylic alcohols total amount the is 25mol% section less than 100ppm of the moisture after vacuum drying
Bar extruder, extruder each district temperature is 275 DEG C, 280 DEG C, 285 DEG C, is allowed to molten condition, flows into dosing pump, accurately after metering
In press-in assembly；
Using hollow spinneret plate spinning, spinneret hole depth 65mm, cooled down by cross air blasting, pathogenic wind-warm is 20 DEG C, and wind speed is
20m/min, sets winding speed as 4000m/min, and a heat roller temperature is 90 DEG C, and two heat roller temperatures are 145 DEG C, speed between two hot-rollings
Degree ratio two hot-rollings a: hot-rolling is 2.25.Control fiber number is 95dtex/36F, obtains hollow fully oriented filament FOY.
The hollow extension silk FOY of winding being carried out false twisting, uses low temperature false twisting, false twisting machine one heater temperature is set to
100 DEG C, two heater temperatures are room temperature, multiplying power 1.05, coiling speed 450m/min, obtain the hollow that fiber number is 90dtex/36F false
Twisting with the fingers processed filament, hollow rate is 4.3%.The boiling water shrinkage of yarn is: 10%, and dry-hot shrinkage is: 13%, percentage elongation of crispaturaing
For: 23%.After making fabric with this fiber or compile thing, carrying out dry heat treatment, hollow rate is 24%.Concrete numerical value is shown in Table 1.
Embodiment 12
Spiral shell is passed through in the MPO that copolyesters dihydroxylic alcohols total amount the is 25mol% section less than 100ppm of the moisture after vacuum drying
Bar extruder, extruder each district temperature is 275 DEG C, 280 DEG C, 285 DEG C, is allowed to molten condition, flows into dosing pump, accurately after metering
In press-in assembly；
Using hollow spinneret plate spinning, spinneret hole depth 25mm, cooled down by cross air blasting, pathogenic wind-warm is 20 DEG C, and wind speed is
20m/min, sets winding speed as 4000m/min, and a heat roller temperature is 90 DEG C, and two heat roller temperatures are 145 DEG C, speed between two hot-rollings
Degree ratio two hot-rollings a: hot-rolling is 2.25.Control fiber number is 95dtex/36F, obtains hollow fully oriented filament FOY.
The hollow extension silk FOY of winding being carried out false twisting, uses low temperature false twisting, false twisting machine one heater temperature is set to
100 DEG C, two heater temperatures are room temperature, multiplying power 1.11, coiling speed 450m/min, obtain the hollow that fiber number is 90dtex/36F false
Twisting with the fingers processed filament, hollow rate is 3.5%.The boiling water shrinkage of yarn is: 9%, and dry-hot shrinkage is: 12%, and percentage elongation of crispaturaing is:
21%.After making fabric with this fiber or compile thing, carrying out dry heat treatment, hollow rate is 23%.Concrete numerical value is shown in Table 1.
Comparative example 1
Spiral shell is passed through in the MPO that copolyesters dihydroxylic alcohols total amount the is 15mol% section less than 100ppm of the moisture after vacuum drying
Bar extruder, extruder each district temperature is 275 DEG C, 280 DEG C, 285 DEG C, is allowed to molten condition, flows into dosing pump, accurately after metering
In press-in assembly；
Using hollow spinneret plate spinning, cooled down by cross air blasting, pathogenic wind-warm is 20 DEG C, and wind speed is 20m/min, sets winding speed
Degree is 2500m/min, and control fiber number is 160dtex/36F, obtains hollow preoriented yarn.
Extending the hollow preoriented yarn of winding, a heat roller temperature is 90 DEG C, and two hot-rollings are 130 DEG C, multiplying power
1.75, coiling speed 800m/min, obtaining fiber number is that 95dtex/36F obtains hollow extension silk.
The hollow extension silk of winding is carried out false twisting, and false twisting machine one heater temperature is set to 170 DEG C, and two heater temperatures are
150 DEG C, multiplying power 1.05, coiling speed 450m/min, obtain the hollow false-twisted textured yarn that fiber number is 90dtex/36F, hollow rate is
2.1%.After making fabric with this fiber or compile thing, carrying out dry heat treatment, hollow retro rate is 10%, and hollow rate is 3.5%.Tool
Body numerical value is shown in Table 1.
Comparative example 2
Spiral shell is passed through in the MPO that copolyesters dihydroxylic alcohols total amount the is 25mol% section less than 100ppm of the moisture after vacuum drying
Bar extruder, extruder each district temperature is 275 DEG C, 280 DEG C, 285 DEG C, is allowed to molten condition, flows into dosing pump, accurately after metering
In press-in assembly；
Using hollow spinneret plate spinning, cooled down by cross air blasting, pathogenic wind-warm is 20 DEG C, and wind speed is 20m/min, sets winding speed
Degree is 4000m/min, and a heat roller temperature is 90 DEG C, and two heat roller temperatures are 145 DEG C, and between two hot-rollings, speed is than two hot-rollings: a hot-rolling
It is 2.25.Control fiber number is 95dtex/36F, obtains hollow fully oriented filament.
The hollow extension silk of winding is carried out false twisting, and false twisting machine one heater temperature is set to 170 DEG C, and two heater temperatures are
150 DEG C, multiplying power 1.05, coiling speed 450m/min, obtain the hollow false-twisted textured yarn that fiber number is 90dtex/36F, hollow rate is
2.4%.After making fabric with this fiber or compile thing, carrying out dry heat treatment, hollow retro rate is 8%, and hollow rate is 4.8%.Tool
Body numerical value is shown in Table 1.
Claims (5)
1. a hollow false-twisted textured yarn, it is characterised in that: the fibre-forming polymer of described processed filament is with band side chain and carbon atom
Number is the modified copolyester that aliphatic dihydroxy alcohol is Third monomer copolymerization of less than 6, and its content accounts for composition copolyesters two
The 1～30mol% of unit's alcohol total amount；There is the most through hollow bulb at the center of described processed filament, and hollow rate is 2%～8%, its physics
Characteristic meets following formula,
A. boiling water shrinkage 8～20%；
B. dry-hot shrinkage 10～25%；
C. crispatura percentage elongation 15～40%；
On described processed filament section, hollow bulb is flat, and flatness is 1.2～3.0.
Hollow false-twisted textured yarn the most according to claim 1, it is characterised in that: described band side chain and carbon number be 6 with
Under aliphatic dihydroxy alcohol be 2-methyl isophthalic acid, 3 propylene glycol, 2,2-dimethyl-1,3 propylene glycol, 2-methyl isophthalic acid, 4-butanediol, 2,
3-dimethyl-BDO or 2-methyl isophthalic acid, any one in 5-pentanediol.
Hollow false-twisted textured yarn the most according to claim 1 and 2, it is characterised in that: described processed filament is through damp and hot or xeothermic
The section triangular shape of its hollow bulb after process, hollow rate is 15%～35%.
4. the production method of a hollow false-twisted textured yarn, it is characterised in that: will be with band side under conventional spinning process condition
Chain and the aliphatic dihydroxy alcohol that carbon number is less than 6 are that Third monomer copolymerization forms and its content accounts for composition copolyesters binary
The 1 of alcohol total amount～the modified copolyester of 30mol% through triangle hollow spinneret plate discharge filamentation, and at the volume of 2000～3500m/min
Taking and prepare preoriented yarn POY under speed, under conditions of multiplying power 1.55～2.5, temperature 120～180 DEG C, deep processing is prolonged
Stretch a DT, then will extend over a DT and carry out false twisting processing under the conditions of multiplying power 1.05～1.3, processing temperature 60～100 DEG C, thus make
On section hollow bulb be flat and hollow false-twisted textured yarn that flatness is 1.2～3.0.
5. the production method of a hollow false-twisted textured yarn, it is characterised in that: will be with band side under conventional spinning process condition
Chain and the aliphatic dihydroxy alcohol that carbon number is less than 6 are that Third monomer copolymerization forms and its content accounts for composition copolyesters binary
The 1 of alcohol total amount～the modified copolyester of 30mol% through triangle hollow spinneret plate discharge filamentation, 3501～5000m/min batch
Prepare fully oriented filament FOY under speed, under the conditions of multiplying power 1.05～1.3, processing temperature 60～100 DEG C, carry out false twisting processing, from
And preparing hollow bulb on section is flat and hollow false-twisted textured yarn that flatness is 1.2～3.0.
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| CN103668613A (en) * | 2012-09-12 | 2014-03-26 | 东丽纤维研究所（中国）有限公司 | Hollow false-twisting processed yarn, production method and woven fabric |
| CN104178828A (en) * | 2013-05-23 | 2014-12-03 | 东丽纤维研究所（中国）有限公司 | Hollow false-twisted textured yarn and cloth formed by same |
| CN105332070B (en) * | 2014-06-24 | 2019-08-16 | 东丽纤维研究所（中国）有限公司 | A kind of textile |
| CN105696092B (en) * | 2014-11-24 | 2019-12-06 | 东丽纤维研究所（中国）有限公司 | Polyester false twist processing fiber, production method and textile made of same |
| CN106868672A (en) * | 2015-12-10 | 2017-06-20 | 东丽纤维研究所（中国）有限公司 | A kind of preparation method of false twist yarn, false twist yarn and textile |
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| CN102162152A (en) * | 2010-02-21 | 2011-08-24 | 东丽纤维研究所（中国）有限公司 | Polyester fiber and fabric |
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| CN101063236A (en) * | 2007-05-11 | 2007-10-31 | 东华大学 | Modified copolyester slicer or fabric and method for making same |
| CN101613466A (en) * | 2009-07-17 | 2009-12-30 | 东华大学 | The copolyester section and the preparation thereof of the aliphatic dihydroxy alcohol modification of band side chain |
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