CN107385527A - A kind of TSS high resiliency composite fibre and preparation method thereof - Google Patents
A kind of TSS high resiliency composite fibre and preparation method thereof Download PDFInfo
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- CN107385527A CN107385527A CN201710409425.1A CN201710409425A CN107385527A CN 107385527 A CN107385527 A CN 107385527A CN 201710409425 A CN201710409425 A CN 201710409425A CN 107385527 A CN107385527 A CN 107385527A
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- tss
- pet
- ptt
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- composite fibre
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/28—Formation of filaments, threads, or the like while mixing different spinning solutions or melts during the spinning operation; Spinnerette packs therefor
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D10/00—Physical treatment of artificial filaments or the like during manufacture, i.e. during a continuous production process before the filaments have been collected
- D01D10/02—Heat treatment
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/12—Stretch-spinning methods
- D01D5/16—Stretch-spinning methods using rollers, or like mechanical devices, e.g. snubbing pins
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/253—Formation of filaments, threads, or the like with a non-circular cross section; Spinnerette packs therefor
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
- D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
- D01F8/14—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyester as constituent
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Multicomponent Fibers (AREA)
- Artificial Filaments (AREA)
Abstract
The invention discloses a kind of TSS high resiliency composite fibre and preparation method thereof, the TSS high resiliency composite fibre be by PTT and PET melt be extruded, metering, spinning is compound, spinneret, cool down, oil, drawing and setting and winding are made, the proportion of the PTT and PET are 1:1；The viscosity of the PET is 0.45dL/g~0.58dL/g, and the viscosity of the PTT is 0.98dL/g~1.35dL/g；The section of the TSS high resiliency composite fibre is in peanut shaped；The fusing point of the PTT is 226 DEG C, and the fusing point of the PET is 258 DEG C.The elasticity of TSS high resiliency composite fibres, production efficiency, the quality of production can be improved in the present invention, and production cost can be reduced.
Description
Technical field
The present invention relates to a kind of long fibre, more particularly to a kind of TSS high resiliency composite fibre and preparation method thereof.
Background technology
With the development of the society, chemical fibre industry has a larger development, requirement of the people to fiber product also more and more higher,
And need to improve there is many deficiencies using spandex as the elastic fibers of core, such as spandex be afraid of in last handling process chlorine drift,
Bad sizing, elastic force is unstable, it is bad arrange, easily foaming, elastic surplus etc..Moreover, spandex is afraid of in last handling process
Chlorine drift, bad sizing, elastic force is unstable, the problem of easily bubbling.
Elastomer raw material in the market simultaneously is complicated, and price is high, and elastic force deficiency, is unfavorable for elastic fibers
Marketing.
The content of the invention
It is an object of the present invention to provide a kind of TSS high resiliency composite fibre and preparation method thereof, by using the product and system
Preparation Method, production efficiency is improved, reduce production cost, while ensure that the high resiliency of fiber.
To reach above-mentioned purpose, the technical solution adopted by the present invention is：A kind of TSS high resiliency composite fibre, the TSS are high
Elastic composite fiber is by PTT and PET melt be extruded, metering, spinning is compound, spinneret, cools down, oils, drawing and setting and volume
Around being made, the proportion of the PTT and PET are 1:1, the structural formula of the PTT is：
The structural formula of the PET is：
In above-mentioned technical proposal, the viscosity of the PET is 0.45dL/g~0.58dL/g, and the viscosity of the PTT is
0.98dL/g~1.35dL/g.
In above-mentioned technical proposal, the section of the TSS high resiliency composite fibre is in peanut shaped.
In above-mentioned technical proposal, the fusing point of the PTT is 226 DEG C, and the fusing point of the PET is 258 DEG C.
To reach above-mentioned purpose, a kind of preparation method of TSS high resiliency composite fibre, its step are employed in the present invention
For：
1. PET and PTT slice are each carried out into crystallizing and drying, PET and PTT are dried to water content and are butted on 20ppm；
2. PET and PTT are separately added into two screw extruders, heating melting extrusion, the PET and PTT of extrusion are carried out
Quantified respectively through a measuring pump；
3. melt is sent into composite spining module by melt pipe, by sand cup, distribution plate, deflector divides two kinds of melts
Spinneret is not introduced, is sprayed, sprays spinning, and the spinning of ejection cools down through annular again, carries out boundling and oils；
4. the spinning after boundling is oiled carries out drawing and setting, then is wound shaping, then the spinning by coiling and molding
It is collected；
5. the step 4. in, spinning carries out drawing and setting by the first hot-rolling and the second hot-rolling successively；
6. the draft speed of first hot-rolling is 1000m/min~2000m/min, the drawing-off speed of second hot-rolling
Spend for 3000m/min~5000m/min, the drawing and setting temperature of first hot-rolling is 75 DEG C~88 DEG C, second hot-rolling
Drawing and setting temperature be 140 DEG C~180 DEG C.
In above-mentioned technical proposal, the winding speed of the coiling and molding is 3550m/min~5000m/min.
In above-mentioned technical proposal, the winding speed of the coiling and molding is more than the second hot-rolling draft speed 100m/min.
Because above-mentioned technical proposal is used, the present invention has following advantages compared with prior art：
1. TSS high resiliency composite fibre (imitative spandex high resiliency composite fibre) is flexible good, permanent, resistance in the present invention
Fatigue, time length does not disappear, stability is good, moisture absorption sweat discharging functions are excellent etc. characteristic, meanwhile, when making not having to twisting directly knits
Make and there is excellent elasticity and elastic recovery, fabrics feel soft, chlorine-resistant drift, high temperature resistant etc., bright in luster, clothes
Can be high；Meanwhile chlorine drift, bad sizing are afraid of in last handling process in the absence of spandex, elastic force is unstable, the problem of easily bubbling；
2. TSS high resiliency composite fibres are processed using one-step method in the present invention, compared with conventional two-step method, production
Efficiency high, production procedure is shorter, and transformation to equipment input is small, reduces cost of labor, production cost can be reduced compared with 30% with
On, while the better quality of product, and it is more stable.
Embodiment
With reference to embodiment, the invention will be further described：
Embodiment one：A kind of TSS high resiliency composite fibre, the TSS high resiliency composite fibre is by PTT and PET melt
Extruded, metering, spinning is compound, spinneret, cool down, oil, drawing and setting and winding are made, the proportion of the PTT and PET are 1:
1, the structural formula of the PTT is：
The structural formula of the PET is：
The viscosity of the PET is 0.45dL/g~0.58dL/g, and the viscosity of the PTT is 0.98dL/g~1.35dL/g.
Wherein, PET possesses different shrinkage factors from PTT, so both by composite spining module side by side it is compound after,
The section of the TSS high resiliency composite fibre is in peanut shaped, can possess preferable elasticity.Wherein, due to the difference of shrinkage factor, meeting
Helical structure is formed, long filament elastic deformation and elastic recovery capability can be made.
The fusing point of the PTT is 226 DEG C, and the fusing point of the PET is 258 DEG C.
To reach above-mentioned purpose, a kind of preparation method of TSS high resiliency composite fibre, its step are employed in the present invention
For：
1. PET and PTT slice are each carried out into crystallizing and drying, PET and PTT are dried to water content and are butted on 20ppm；
2. PET and PTT are separately added into two screw extruders, heating melting extrusion, the PET and PTT of extrusion are carried out
Quantified respectively through a measuring pump；
3. melt is sent into composite spining module by melt pipe, by sand cup, distribution plate, deflector divides two kinds of melts
Spinneret is not introduced, is sprayed, sprays spinning, and the spinning of ejection cools down through annular again, carries out boundling and oils；
4. the spinning after boundling is oiled carries out drawing and setting, then is wound shaping, then the spinning by coiling and molding
It is collected；
5. the step 4. in, spinning carries out drawing and setting by the first hot-rolling and the second hot-rolling successively；
6. the draft speed of first hot-rolling is 1000m/min~2000m/min, the drawing-off speed of second hot-rolling
Spend for 3000m/min~5000m/min, the drawing and setting temperature of first hot-rolling is 75 DEG C~88 DEG C, second hot-rolling
Drawing and setting temperature be 140 DEG C~180 DEG C.
The winding speed of the coiling and molding is 3550m/min~5000m/min.
The winding speed of the coiling and molding is more than the second hot-rolling draft speed 100m/min.
Wherein, PET heating extrusion temperature is 255 DEG C~278 DEG C, and PTT heating extrusion temperature is 240 DEG C~268 DEG C.
Wherein, when heating extrusion there are 4 sections of heating in screw rod, the temperature such as following table per area：
| / unit DEG C | One area's temperature | Two area's temperature | Three area's temperature | Four area's temperature |
| PET | 255~270 | 260~273 | 265~275 | 270~278 |
| PTT | 240~252 | 245~253 | 252~263 | 258~268 |
Screw rod is divided into the heating of multi-region temperature, because in the molten state, PET and PTT different temperatures section viscosity is different,
Therefore each area's heating-up temperatures of two kinds of sections are different, by adjusting each area's temperature of PET and PTT respectively to optimal, can so protect
Card PET and PTT have a good mobility in Screw Extrusion, and viscosity is different so as to forming differences in viscosity after extrusion.
Spinning temperature is to surround melt pipe by dinyl kettle heating medium for heating, biphenyl gas pipeline, carries out the connection of Heat preservation
Benzene heating agent stove heat is exactly spinning temperature.
| Spinning temperature | Spinning temperature |
| PET | 270~278 |
| PTT | 258~268 |
In the present embodiment, in process, the first hot-rolling is passed through in spinning, wherein, the temperature of the first hot-rolling is 75 DEG C
~88 DEG C, spinning can so be preheated, soften spinning, traction stretching is then carried out by the second hot-rolling again, by
It is more than the hauling speed of the first hot-rolling in the second hot-rolling hauling speed, after such first hot-rolling heating, spinning can be carried out
Stretching, meanwhile, the temperature of the second hot-rolling is 140 DEG C~180 DEG C, and spinning is heated during stretching, can improve spinning
The elasticity of silk, such spinning can also be effectively increased the elasticity of spinning in drawing process, ensure the high resiliency of spinning.Meanwhile roll up
It is greater than the hauling speed of the second hot-rolling around the speed of shaping, additionally it is possible to a certain degree of stretching is carried out to spinning, can be realized
It stretches quality.
In conventional structure, using two-step method, for extrusion, ring wind quenching, oil, wind, fall bucket, boundling, stretching, tight
Thermal finalization is opened, oils, circumnutate, cutting off, process is especially more.Extrusion, ring wind quenching are only needed in the present invention, oiled, stretched and determine
Type, winding, you can complete, process is few, and cost is low, and efficiency is fast.
It is as follows, from several embodiments, data explanation and contrast are carried out to TSS elastic composites fiber.
Wherein, TSS elastic composites fibre property determination step is：
1st, it is that to survey its length be L1 to 0.1g/d that length, which is born a heavy burden, before measuring.
2nd, in 121 DEG C of temperature, the time is to be heat-treated in 5 minutes.
3rd, disk is taken out to balance 10 minutes.
4th, it is that to survey its length be L2 to 0.00015g/d that length, which is born a heavy burden, after measuring.
5th, L2 bears a heavy burden to take out adds its length of 0.1g/d heavy burden surveys to be L3 again.
6th, L1, L2, L3 data have been recorded
CP crimpabilitys=(L3-L2)/L2*100%
Characterize under silk constant load, crimp the ratio between the length stretched and original length.
CS crimp contractions=(L1-L3)/L1*100%
After sign silk is straightened, caused shrinkage factor when coiled structure is recovered again.
CI crimps index=(L3-L2)/L2*100%
Length ratio after length and heated curling that sign silk extends after being straightened.
Embodiment two：First heat rolling speed is 1900m/min, and temperature is 78 DEG C；Second heat rolling draft speed be
3800m/min, its heat setting temperature are 140 DEG C；The winding speed is 3900m/min.Finally obtained TSS elastic fibers elasticity
The CI 40% of 55% CS of index CP 12%.
Embodiment three：First heat rolling speed is 1800m/min, and temperature is 78 DEG C；Second heat rolling draft speed be
3900m/min, its heat setting temperature are 150 DEG C；The winding speed is 4000m/min.Finally obtained TSS elastic fibers elasticity
The CI 37% of 59% CS of index CP 11%.
Example IV：First heat rolling speed is 1700m/min, and temperature is 78 DEG C；Second heat rolling draft speed be
4000m/min, its heat setting temperature are 160 DEG C；The winding speed is 4100m/min.Finally obtained TSS elastic fibers elasticity
The CI 41% of 69% CS of index CP 11%.
Embodiment five：First heat rolling speed is 1600m/min, and temperature is 78 DEG C；Second heat rolling draft speed be
4100m/min, its heat setting temperature are 170 DEG C；The winding speed is 4200m/min.Finally obtained TSS elastic fibers elasticity
The CI 42% of 74% CS of index CP 11%.
Embodiment six：First heat rolling speed is 1600m/min, and temperature is 78 DEG C；Second heat rolling draft speed be
4200m/min, its heat setting temperature are 180 DEG C；The winding speed is 4300m/min.Finally obtained TSS elastic fibers elasticity
The CI 45% of 80% CS of index CP 10%.
Embodiment seven：First heat rolling speed is 1600m/min, and temperature is 78 DEG C；Second heat rolling draft speed be
4300m/min, its heat setting temperature are 180 DEG C；The winding speed is 4400m/min.Finally obtained TSS elastic fibers elasticity
The CI 40% of 90% CS of index CP 13.9%.
In the present invention, drying time 12-18h, drying temperature PTT is dried in PTT, PET in respective drying tower
125℃ PET 128℃。
Aqueous too high PTT and PET accelerated degradation, degraded can excessively make gluing for PET PTT in screw rod melting process
Degree reduces, and viscosity reduces, and elasticity has loss, and produces the silk that floats in the excessive spinning process of degraded of cutting into slices and increase, and broken end increases,
Spinnability is influenceed, spinning cake finished appearance lousiness, reduces AA rates, therefore 20ppm PPT and PET are butted on using moisture content.It is and conventional
In technology, most of to use 30ppm, it is more directed to one-component conventional variety, PET.Required for aqueous without double
Component Compound spinning is it require that height.
Wherein, suitable draft speed is to ensure suitable drafting multiple, ensures that elasticity is superior, suitable sizing temperature
Degree is in order to improve elastic superiority, to ensure that the high-tension of the superior alternative spandex of elasticity can be made in one-step method high speed spinning
Composite fibre, crossing low elasticity deficiency needs elasticizer secondary operation (the second hot-rolling setting temperature is less than 140 DEG C), and too high boiling water is received
Shrinkage too low (the second hot-rolling setting temperature is higher than 180) can cause cloth cover door width too big.
The requirement of hauling speed and setting temperature, which is that the faster temperature of speed is higher, just can guarantee that elasticity is superior, and boiling shrinkage
It is suitable, when the slow setting temperature of speed is high, increase equivalent to the heated of tow in the unit interval, boiling water shrinkage is too low, leads
Cause cloth cover door width too big；When the fast setting temperature of speed is low, equivalent to the heated reduction of tow in the unit interval, elasticity is insufficient,
Need elasticizer secondary operation.
Claims (7)
- A kind of 1. TSS high resiliency composite fibre, it is characterised in that：The TSS high resiliency composite fibre is by PTT and PET melt Extruded, metering, spinning is compound, spinneret, cool down, oil, drawing and setting and winding are made, the proportion of the PTT and PET are 1: 1, the structural formula of the PTT is：The structural formula of the PET is：
- 2. TSS high resiliency composite fibre according to claim 1, it is characterised in that：The viscosity of the PET is 0.45dL/g ~0.58dL/g, the PTT viscosity are 0.98dL/g~1.35dL/g.
- 3. TSS high resiliency composite fibre according to claim 1, it is characterised in that：The TSS high resiliency composite fibre Section is in peanut shaped.
- 4. TSS high resiliency composite fibre according to claim 1, it is characterised in that：The fusing point of the PTT is 226 DEG C, institute The fusing point for stating PET is 258 DEG C.
- 5. a kind of preparation method of TSS high resiliency composite fibre as claimed in claim 1, its step are：1. PET and PTT slice are each carried out into crystallizing and drying, PET and PTT are dried to water content and are butted on 20ppm；2. PET and PTT are separately added into two screw extruders, heating melting extrusion, PET and the PTT difference of extrusion are carried out Quantified through a measuring pump；3. melt is sent into composite spining module by melt pipe, by sand cup, distribution plate, deflector draws two kinds of melts respectively Enter spinneret, spray, spray spinning, the spinning of ejection cools down through annular again, carries out boundling and oils；4. the spinning after boundling is oiled carries out drawing and setting, then is wound shaping, then the spinning of coiling and molding is carried out Collect；5. the step 4. in, spinning carries out drawing and setting by the first hot-rolling and the second hot-rolling successively；6. the draft speed of first hot-rolling is 1000m/min~2000m/min, the draft speed of second hot-rolling is 3000m/min~5000m/min, the drawing and setting temperature of first hot-rolling is 75 DEG C~88 DEG C, the drawing of second hot-rolling Setting temperature is stretched for 140 DEG C~180 DEG C.
- 6. the preparation method of TSS high resiliency composite fibre according to claim 5, it is characterised in that：The coiling and molding Winding speed be 3550m/min~5000m/min.
- 7. the preparation method of TSS high resiliency composite fibre according to claim 6, it is characterised in that：The coiling and molding Winding speed be more than the second hot-rolling draft speed 100m/min.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109235019A (en) * | 2018-08-01 | 2019-01-18 | 苏州大学 | High Curl PET/PTT composite fibre and preparation method thereof |
| CN110923847A (en) * | 2019-11-06 | 2020-03-27 | 芦山华美包纱有限公司 | High-elasticity hot-melt composite special-shaped fiber and preparation process thereof |
| WO2021037028A1 (en) * | 2019-08-27 | 2021-03-04 | 桐昆集团股份有限公司 | Preparation method for highly self-crimpable pet/ptt side-by-side composite filament |
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|---|---|---|---|---|
| CN109235019A (en) * | 2018-08-01 | 2019-01-18 | 苏州大学 | High Curl PET/PTT composite fibre and preparation method thereof |
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| WO2021037028A1 (en) * | 2019-08-27 | 2021-03-04 | 桐昆集团股份有限公司 | Preparation method for highly self-crimpable pet/ptt side-by-side composite filament |
| CN110923847A (en) * | 2019-11-06 | 2020-03-27 | 芦山华美包纱有限公司 | High-elasticity hot-melt composite special-shaped fiber and preparation process thereof |
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