CN107829165A - Double-colored fiber of a kind of ETD high convergencies type elastic force and preparation method thereof - Google Patents
Double-colored fiber of a kind of ETD high convergencies type elastic force and preparation method thereof Download PDFInfo
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- CN107829165A CN107829165A CN201710409873.1A CN201710409873A CN107829165A CN 107829165 A CN107829165 A CN 107829165A CN 201710409873 A CN201710409873 A CN 201710409873A CN 107829165 A CN107829165 A CN 107829165A
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- 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
-
- 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
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
- D02G3/02—Yarns or threads characterised by the material or by the materials from which they are made
- D02G3/04—Blended or other yarns or threads containing components made from different materials
-
- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
- D02G3/22—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
- D02G3/32—Elastic yarns or threads ; Production of plied or cored yarns, one of which is elastic
- D02G3/328—Elastic yarns or threads ; Production of plied or cored yarns, one of which is elastic containing elastane
-
- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
- D02G3/22—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
- D02G3/34—Yarns or threads having slubs, knops, spirals, loops, tufts, or other irregular or decorative effects, i.e. effect yarns
- D02G3/346—Yarns or threads having slubs, knops, spirals, loops, tufts, or other irregular or decorative effects, i.e. effect yarns with coloured effects, i.e. by differential dyeing process
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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)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
Abstract
The invention discloses double-colored fiber of a kind of ETD high convergencies type elastic force and preparation method thereof, it is characterised in that：The double-colored fiber of the ETD high convergencies type elastic force is combined by the first filament and the second filament, and the proportion of first filament and the second filament is 3:7~7:3, first filament is cation POY silks, and second filament is combined by component A and B component, and the component A is one kind in PET, PA, PBT, and the B component is one kind in PET, PA, PBT, and the component A and B component are different；Preparation method is：1. the first filament is heated, adds bullet；2. pooling capital to the first filament and the second filament, elastomeric double-colored fiber is obtained.The making of double-colored elastic fibers can be realized in the present invention, production cost can be reduced.
Description
Technical field
The present invention relates to a kind of field of textiles, more particularly to a kind of double-colored fiber of ETD high convergencies type elastic force and its preparation side
Method.
Background technology
With the development of the society, chemical fibre industry has a larger development, requirement of the people to fiber product is also increasingly
Height, fiber product is also more and more various, and the double-colored fiber product species of domestic market is few, feature is single and effect compared with
Difference, complex manufacturing.And most of double-colored fibers do not possess elasticity on the market, and flexible fiber color list
One, the scope of application is narrow, can not meet the needs of garment material market at this stage.
The content of the invention
It is an object of the present invention to provide double-colored fiber of a kind of ETD high convergencies type elastic force and preparation method thereof, fibre can either be realized
The two-color effect of dimension, additionally it is possible to ensure the elastic force and highly shrinkable of fiber, reduce cost.
To reach above-mentioned purpose, the technical solution adopted by the present invention is：A kind of double-colored fiber of ETD high convergencies type elastic force, institute
State the double-colored fiber of ETD high convergency type elastic force to be combined by the first filament and the second filament, first filament and the second filament
Proportion be 3:7~7:3, first filament is cation POY silks, and second filament is by component A and the compound system of B component
Into the component A is one kind in PET, PA, PTT, SDX, PBT, and the B component is one in PET, PA, PTT, SDX, PBT
Kind, and the A components and B component are different, the proportion of the component A and B component is 1:1.
In above-mentioned technical proposal, the fiber number of the double-colored fiber of the ETD high convergencies type elastic force is 50D~250D, monofilament radical
For 48~108.
In above-mentioned technical proposal, the meshes number of the double-colored fiber of the ETD high convergencies type elastic force for 80/m~130/
m。
In above-mentioned technical proposal, the component A is different from the shrinkage factor of B component.
To reach above-mentioned purpose, a kind of preparation method of the double-colored fiber of ETD high convergencies type elastic force is employed in the present invention,
Its step is：
1. the first filament and the second filament are added into buncher carries out stretching plying, high by false twisting process, adjustment ETD
The elastic force of the double-colored fiber of shrinkage type elastic force.
2. the step 1. in, the first filament initially enters the first hot tank heat distortion, and then the first filament enters false twisting
False twisting stabilization is carried out in device, the first filament after false twisting is sent into chemical fibre network device；
3. the second filament is sent into chemical fibre network device by wire feeder, enter chemical fibre network simultaneously with the first filament
Device, the first filament and the second filament are pooled capital by chemical fibre network device；
4. the double-colored fiber of ETD high convergency type elastic force after plying is entered in the second hot tank, wherein, the second hot tank is
Closed mode, heating function is not enabled, the double-colored fiber of ETD high convergency type elastic force afterwards carries out the winding that oils, and it is high to complete ETD
The making of the double-colored fiber of shrinkage type elastic force.
In above-mentioned technical proposal, the heating-up temperature of first hot tank is 160 DEG C~200 DEG C, the temperature of second hot tank
Spend for room temperature.
In above-mentioned technical proposal, the draw ratio of first filament is 1.5~1.7.
In above-mentioned technical proposal, the second filament manufacture craft is：
A, component A and B component section are each subjected to crystallizing and drying, component A and B component drying to water content is butted on
20ppm；
B, component A and B component are separately added into two screw extruders, carry out heating melting extrusion, the A groups of extrusion
Part quantifies through a measuring pump respectively with B component；
C, melt is sent into composite spining module by melt pipe, and by sand cup, distribution plate, deflector is by two kinds of melts
Spinneret is introduced respectively, is sprayed, sprays spinning, and the spinning of ejection cools down through annular again, carries out boundling and oils；
D, 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, completes the making of the second filament；
E, in the step d, spinning carries out drawing and setting by the first hot-rolling and the second hot-rolling successively；
F, the hauling speed of first hot-rolling is 1000m/min~2000m/min, the traction of second hot-rolling
Speed is 3000m/min~5000m/min, and the drawing and setting temperature of first hot-rolling is 75 DEG C~88 DEG C, second heat
The drawing and setting temperature of roller is 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 m/min of the second hot-rolling hauling speed 100.
Because above-mentioned technical proposal is used, the present invention has following advantages compared with prior art：
1. the double-colored elastic fibers of ETD is formed using the first filament and the second filament plying in the present invention, wherein the first filament
The FDY elastic force composite fibres formed using cation POY silks, the second filament using two kinds of components, it is single to solve filament color
Problem, and can solve the problems, such as two kinds of filament stranded elastic deficiencies, reduce the processing cost of color silk, and ETD is double-colored in the present invention
Elastic fibers can realize double-colored colour effect, and and can enough ensures the high resiliency of fiber, also ensure that the high convergency of fiber
Property, expand the scope of application of double-colored fiber；
2. the first filament uses cation POY silks in the present invention, the second filament use can not absorb the dye of positive ion
FDY elastic force composite fibres, it can so ensure weaving into cloth after cationic dyeing, the first filament can absorb
The dye of positive ion, so as to form contrast effect, color is presented dim sense, has expanded the scope of application of double-colored fiber；
3. the second filament is processed using two kinds of components of A, B in the present invention, using one-step method directly add
Work, with using two-step method in the past, in the presence of the second filament high resiliency is ensured, its production efficiency is more preferable, and production procedure is more
Short, the transformation input to equipment is small, reduces cost of labor, can reduce production cost compared with more than 30%, while the quality of product
More preferably, it is and more stable；
4. in the present invention in the presence of the second filament possesses high resiliency, the first filament is heated using the first hot tank
Deformation, recycle scroll tube to adjust the elasticity of the first filament, can so ensure that the first filament is excellent after pooling capital with the second filament
Elasticity more, ensure the elasticity of double-colored fiber.
Embodiment
With reference to embodiment, the invention will be further described：
Embodiment one：A kind of double-colored fiber of ETD high convergencies type elastic force, the double-colored fiber of the ETD high convergencies type elastic force is by
One filament is combined with the second filament, and the proportion of first filament and the second filament is 3:7~7:3, first filament
For cation POY silks, second filament is combined by component A and B component, the component A be PET, PA, PTT, SDX,
One kind in PBT, the B component are one kind in PET, PA, PTT, SDX, PBT, and the mutual not phase of the component A and B component
Together, the proportion of the component A and B component is 1:1.
In the present embodiment, component A uses different combinations from B component, can all have high resiliency, wherein, PTT and PET
The second filament formed, its shrinkage can be more than PBT and PET shrinkage, can be adjusted according to being actually needed.
In the present embodiment, the section of the second filament is peanut shaped structure, and component A is different from the viscosity of B component, can make
There is different shrinkage factors into two kinds of components, the difference of shrinkage factor causes helical structure, so as to produce high resiliency.
The fiber number of the double-colored elastic fibers of ETD is 50D~250D, and monofilament radical is 48~108.Wherein, fiber number
Different, the application of double-colored fiber is different.
The meshes number of the double-colored fiber of the ETD high convergencies type elastic force is 80/m~130/m.Wherein, the first filament
,, can using the grid number that 80/m~130/m is stamped in pressure sky by chemical fibre network device and second after filament plying
Increase the saturability of tow, can also ensure the fastness of chemical fibre network device.
The component A is different from the shrinkage factor of B component.Wherein, because the shrinkage factor of A, B component is different, spiral can be formed
Structure, the second filament can be made to possess stronger elastic deformation and elastic recovery capability.
To reach above-mentioned purpose, a kind of preparation method of the double-colored fiber of ETD high convergencies type elastic force is employed in the present invention,
Its step is：
1. the first filament and the second filament are added into buncher carries out stretching plying, high by false twisting process, adjustment ETD
The elastic force of the double-colored fiber of shrinkage type elastic force, first filament are infected with color.
2. the step 1. in, the first filament initially enters the first hot tank heat distortion, and then the first filament enters false twisting
False twisting stabilization is carried out in device, the first filament after false twisting is sent into chemical fibre network device；
3. the second filament is sent into chemical fibre network device by wire feeder, enter chemical fibre network simultaneously with the first filament
Device, the first filament and the second filament are pooled capital by chemical fibre network device；
Shaped 4. the double-colored fiber of ETD high convergency type elastic force after plying is entered in the second hot tank, wherein, the
Two hot tanks are closed mode, do not enable heating function, and the double-colored fiber of ETD high convergency type elastic force after shaping carries out the volume that oils
Around the making of the completion double-colored fiber of ETD high convergency type elastic force.
In the present embodiment, the second filament can make second due to being made of the different A of two kinds of shrinkage factors, B component
Filament possesses stronger elastic deformation and elastic recovery capability, therefore, in order to ensure that the first filament and the second filament pool capital it
Afterwards, double-colored fiber can keep high resiliency, before plying, the first filament first be carried out into heat distortion by the first hot tank, then lead to
The elasticity that scroll tube adjusts the first filament is crossed, is easy to after pooling capital with the second filament, realizes the elasticity of double-colored fiber.Wherein, exist
Adjusted in scroll tube in the first filament elastic process, false twisting and untwister tension are controlled by false twisting angle, draw ratio.Described
The draw ratio of one filament is 1.5~1.7.The increase of draw ratio and the first heater temperature, it is possible to increase the first filament
Elasticity.False twisting angle, speed ratio, it is in tow production process than adjustment to control false twisting and untwister tension, false twisting angle, speed
Tension force.
In the present embodiment, the heating-up temperature of first hot tank is 160 DEG C~200 DEG C, the temperature of second hot tank
For room temperature.The first filament is heated using the first hot tank, the elasticity of the first filament is conveniently adjusted, due to the first filament and second
Body inherently possesses stronger elasticity, and the fiber after pooling capital also possesses stronger elasticity, it is not necessary to which the second hot tank is to double-colored fibre
Dimension is heated, and can also ensure the elasticity of double-colored fiber.
Wherein, the first hot tank is mainly for adjusting the elasticity of the first filament, and the second hot tank typically uses room temperature, and room temperature is
24 DEG C~28 DEG C, the second hot tank can be closed directly, not enable the heating function of the second hot tank.If open the second hot tank
Heating function, after its heat-shaping shrinks, elasticity can reduce, and elasticity is more superior if not heating, can compared with heating
Improve 15%~20% elasticity.
Wherein, the second filament manufacture craft is：
A, component A and B component section are each subjected to crystallizing and drying, component A and B component drying to water content is butted on
20ppm；
B, component A and B component are separately added into two screw extruders, carry out heating melting extrusion, the A groups of extrusion
Part quantifies through a measuring pump respectively with B component；
C, melt is sent into composite spining module by melt pipe, and by sand cup, distribution plate, deflector is by two kinds of melts
Spinneret is introduced respectively, is sprayed, sprays spinning, and the spinning of ejection cools down through annular again, carries out boundling and oils；
D, 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, completes the making of the second filament；
E, in the step d, spinning carries out drawing and setting by the first hot-rolling and the second hot-rolling successively；
F, the hauling speed of first hot-rolling is 1000m/min~2000m/min, the traction of second hot-rolling
Speed is 3000m/min~5000m/min, and the drawing and setting temperature of first hot-rolling is 75 DEG C~88 DEG C, second heat
The drawing and setting temperature of roller is 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
More than the second hot-rolling hauling speed 100m/min.
In the present embodiment, PET is used with component A, exemplified by B component uses PBT, in process, spinning is by the
One hot-rolling, wherein, the temperature of the first hot-rolling is 75 DEG C~88 DEG C, spinning can so be preheated, soften spinning,
Then traction stretching is carried out by the second hot-rolling again, because the second hot-rolling hauling speed is more than the hauling speed of the first hot-rolling, this
After the heating of the hot-rolling of sample first, spinning can be stretched, meanwhile, the temperature of the second hot-rolling is 140 DEG C~180 DEG C, spinning
Heated during stretching, the elasticity of spinning can be improved, such spinning can also be effectively increased spinning in drawing process
The elasticity of silk, ensure the high resiliency of spinning.Meanwhile the speed of coiling and molding is greater than the hauling speed of the second hot-rolling, additionally it is possible to
A certain degree of stretching is carried out to spinning, can realize that it stretches quality.
In conventional structure, using two-step method, for extrusion, ring wind quenching, oil, wind, fall bucket, boundling, stretching,
Nervous thermal finalization, oil, circumnutate, cutting off, process is especially more.Extrusion, ring wind quenching are only needed in the present invention, oils, stretch
Sizing, winding, you can complete, process is few, and cost is low, and efficiency is fast.
In the present embodiment, the first filament is cation POY silks, and the second filament is A, the fdy silks of B component composition, its
In, the double-colored fiber of ETD high convergency type elastic force formed afterwards that both are pooled capital carries out spinning cloth, spins cloth and is contaminated afterwards using cation
Material is painted, wherein, the POY silks only with cation can absorb the dye of positive ion and be colored, fdy silks (second
Body) be then use can not absorb the dye of positive ion, so as to can not paint.The double-colored fibre of ETD high convergency type elastic force made of so
Dimension can possess contrast effect.
Wherein, the elastic performance measure of elastic fibers
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 filament takes 75D/72f, and the first filament to be closed on the type elasticizers of TMT 21 to it
Stock composite elastic processing, the first 160 DEG C of heater temperature, draw ratio 1.50, is made the double-colored CS of fibrous elasticity index CP 55%
12% CI 40%.
Embodiment three：First filament takes 75D/72f, and the first filament to be closed on the type elasticizers of TMT 21 to it
Stock composite elastic processing, the first 160 DEG C of heater temperature, draw ratio 1.50, is made the double-colored CS of fibrous elasticity index CP 59%
11% CI 37%.
Example IV：First filament takes 75D/72f, and the first filament to be closed on the type elasticizers of TMT 21 to it
Stock composite elastic processing, the first 170 DEG C of heater temperature, draw ratio 1.55, is made the double-colored CS of fibrous elasticity index CP 69%
11% CI 41%.
Embodiment five：First filament takes 75D/72f, and the first filament to be closed on the type elasticizers of TMT 21 to it
Stock composite elastic processing, the first 180 DEG C of heater temperature, draw ratio 1.60, is made the double-colored CS of fibrous elasticity index CP 74%
11% CI 42%.
Embodiment six：First filament takes 75D/72f, and the first filament to be closed on the type elasticizers of TMT 21 to it
Stock composite elastic processing, the first 190 DEG C of heater temperature, draw ratio 1.65, is made the double-colored CS of fibrous elasticity index CP 80%
10% CI 45%.
Embodiment seven：First filament takes 75D/72f, and the first filament to be closed on the type elasticizers of TMT 21 to it
Stock composite elastic processing, the first 200 DEG C of heater temperature, draw ratio 1.70, is made the double-colored CS of fibrous elasticity index CP 90%
13.9% CI 40%.
Wherein, suitable hauling speed is to ensure suitable drafting multiple, ensures that elasticity is superior, suitable first
Hot tank heating-up temperature is to improve elastic superiority, can be made elastic excellent to ensure the first filament after adjustment elasticity
The first filament more, ensure the double-colored fibrous elasticity after the second filament is pooled capital, crossing low elasticity deficiency needs elasticizer secondary
Processing, it is too high that shrinkage factor can be caused too low, cloth cover door width can be caused too big.(preparation for being also applied for the second filament)
Wherein, draw ratio be the first filament in texturing process, the ratio of the second roller and first roller.
Aqueous too high component A and B component can in screw rod melting process accelerated degradation, degraded can excessively make component A with
And the viscosity of B component reduces, viscosity reduces, and elasticity has loss, and produces silk increasing of floaing in the excessive spinning process of degraded of cutting into slices
More, broken end increases, and influences spinnability, spinning cake finished appearance lousiness, reduces AA rates, therefore 20ppm A is butted on using moisture content
Component and B component.
Claims (10)
- A kind of 1. double-colored fiber of ETD high convergencies type elastic force, it is characterised in that：The double-colored fiber of the ETD high convergencies type elastic force is by One filament is combined with the second filament, and the proportion of first filament and the second filament is 3:7~7:3, first filament For cation POY silks, second filament is combined by component A and B component, the component A be PET, PA, PTT, SDX, One kind in PBT, the B component is one kind in PET, PA, PTT, SDX, PBT, and the component A and B component are different, The proportion of the component A and B component is 1:1.
- 2. the double-colored fiber of ETD high convergencies type elastic force according to claim 1, it is characterised in that：The ETD high convergencies type bullet The fiber number of the double-colored fiber of power is 50D~250D, and monofilament radical is 48~108.
- 3. the double-colored fiber of ETD high convergencies type elastic force according to claim 1, it is characterised in that：The double-colored elastic force of ETD is fine The meshes number of dimension is 80/m~130/m.
- 4. the double-colored fiber of ETD high convergencies type elastic force according to claim 1, it is characterised in that：The component A and B component Shrinkage factor it is different.
- 5. a kind of preparation method of the double-colored fiber of ETD high convergencies type elastic force as claimed in claim 1, its step are：1. the first filament and the second filament are added into buncher carries out stretching plying, by false twisting process, ETD high convergency types are adjusted The elastic force of the double-colored fiber of elastic force.2. the step 1. in, the first filament initially enters the first hot tank heat distortion, then the first filament enter scroll tube in False twisting stabilization is carried out, the first filament after false twisting is sent into chemical fibre network device；3. the second filament is sent into chemical fibre network device by wire feeder, enters chemical fibre network device simultaneously with the first filament, lead to Cross chemical fibre network device the first filament and the second filament are pooled capital；4. the double-colored elastic fibers of ETD after plying is entered in the second hot tank, wherein, the second hot tank is closed mode, is not opened With heating function, the double-colored fiber of ETD high convergencies type elastic force carries out the winding that oils afterwards, completes the double-colored fibre of ETD high convergency type elastic force The making of dimension.
- 6. the preparation method of the double-colored fiber of ETD high convergencies type elastic force according to claim 5, it is characterised in that：Described The heating-up temperature of one hot tank is 160 DEG C~200 DEG C, and the temperature of second hot tank is room temperature.
- 7. the preparation method of the double-colored fiber of ETD high convergencies type elastic force according to claim 5, it is characterised in that：Described The draw ratio of one filament is 1.5~1.7.
- 8. the preparation method of the double-colored fiber of ETD high convergencies type elastic force according to claim 5, it is characterised in that：Described Two filament manufacture crafts are：A, component A and B component section are each subjected to crystallizing and drying, component A and B component drying to water content is butted on 20ppm；B, component A and B component are separately added into two screw extruders, carry out heating melting extrusion, the component A and B of extrusion Component quantifies through a measuring pump respectively；C, melt is sent into composite spining module by melt pipe, and 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；D, 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, complete the making of the second filament；E, in the step d, spinning carries out drawing and setting by the first hot-rolling and the second hot-rolling successively；F, the hauling speed of first hot-rolling is 1000m/min~2000m/min, and the hauling 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.
- 9. the preparation method of the double-colored fiber of ETD high convergencies type elastic force according to claim 8, it is characterised in that：The volume Winding speed around shaping is 3550m/min~5000m/min.
- 10. the preparation method of the double-colored fiber of ETD high convergencies type elastic force according to claim 9, it is characterised in that：The volume Winding speed around shaping is more than the second hot-rolling hauling speed 100m/min.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115896999A (en) * | 2022-01-26 | 2023-04-04 | 江苏恒科新材料有限公司 | Elastic different-shrinkage different-color cotton-like yarn and fabric and preparation method thereof |
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