CN110079893A - Composite fibre - Google Patents
Composite fibre Download PDFInfo
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- CN110079893A CN110079893A CN201810073554.2A CN201810073554A CN110079893A CN 110079893 A CN110079893 A CN 110079893A CN 201810073554 A CN201810073554 A CN 201810073554A CN 110079893 A CN110079893 A CN 110079893A
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- Prior art keywords
- core
- composite fibre
- sheath portion
- fusing point
- sheath
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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
- D01D5/30—Conjugate filaments; Spinnerette packs therefor
- D01D5/34—Core-skin structure; 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
- D01F8/06—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyolefin as constituent
-
- 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
- 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
- D01F8/16—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one other macromolecular compound obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds as constituent
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Multicomponent Fibers (AREA)
Abstract
The present invention provides a kind of composite fibre, includes core and sheath portion, which coats the core, and the fusing point of the sheath portion is lower than 60 DEG C to 160 DEG C of fusing point of the core.
Description
[technical field]
The present invention relates to a kind of fiber, especially a kind of composite fibre (conjugate fibre, conjugated fiber).
[background technique]
In general, common staple fibre is mostly homofil, also that is, being made with single material.In such list
In component fibre, if using dystectic high molecular polymer material in order to take intensity into account, can have feel excessively to endure with all one's will,
Plastic cement sense is heavier and the disadvantages of lacking flexibility；Conversely, if using low melting point high molecular polymer, though can provide soft feel and
Elasticity but cannot be considered in terms of its intensity and abrasion performance property.Also that is, such homofil can not have high-melting-point macromolecule simultaneously
The advantages of polymer and low melting point high molecular polymer, therefore it is necessary to improve to this fiber.
[summary of the invention]
To solve the above problems, the present invention provides a kind of composite fibre, it include core and sheath portion, which coats the core
Portion, and the fusing point of the sheath portion is lower than 60 DEG C to 160 DEG C of fusing point of the core.
In addition, including the present invention also provides a kind of manufacturing method of composite fibre: providing core material and sheath portion material
Material, wherein the fusing point of the sheath portion material is lower than about 60 DEG C to about 160 DEG C of fusing point of the core material；Make the core material and the sheath
Portion's material molten；And the core material and the sheath portion material is made to spin mouth component (core-skin spinneret, sheath via core sheath jointly
And core spinneret) it squeezes out, to form the composite fibre, wherein the core material forms core, the sheath portion material
Sheath portion is formed, and the sheath portion coats the core.
[Detailed description of the invention]
Fig. 1 shows the schematic cross-sectional view of the composite fibre of some embodiments according to the present invention.
Fig. 2 shows the flow diagram of the manufacturing method of the composite fibre of some embodiments according to the present invention.
[specific embodiment]
It please refers to shown in Fig. 1, is painted the sectional view of the composite fibre 1 in certain embodiments of the invention, this is compound
Fiber 1 includes core 11 and sheath portion 12.However, in other embodiments, the section of the composite fibre 1 can with shown in Fig. 1
It is different.The sheath portion 12 coats the core 11, and the fusing point of the sheath portion 12 is lower than about 60 DEG C to about 160 DEG C of fusing point of the core 11.
Here and described hereinafter, " fiber (fiber) " refers to big 1000 times of the material of its length: width.Preferably, originally
The invention composite fibre 1 belongs to long fibre (filament fiber) or fibril (filament), is continuous length
Fiber, for example, draw ratio be greater than 108Or the above person.
For example, fiber can usually include crystallized domains (crystalline region) and noncrystalline domain (amorphous
Region), by crystallized domains and the ratio in noncrystalline domain in regulation fiber, it can adjust the property of fiber.In general, crystallized domains
Ratio it is higher, then the hardness of fiber is big, elasticity is small, relatively stiffening and fusing point is high；The ratio of crystallized domains is lower, then fiber will be more soft
It is soft, elastic it is big, fusing point is low and usually has hot melt adhesive." hot melt adhesive (the hot-melt adhesive) " refers to that it can
It is melted when heated, and there is adherence in the molten state.
" composite fibre (composite fiber) 1 " is also known as conjugate fibre (conjugated fiber) or more
Component fibre (multi-component fiber), refers to the fiber comprising two kinds or more components, each component is physically or chemically
Property is different, and can separate each other in the composite fibre 1.
" core (core) 11 " can claim sandwich layer again, refer to the inside of this composite fibre 1, and " the sheath portion
(sheath) 12 " can claim cortex again, refer to the outer layer of this composite fibre 1, coat at least part of the core 11, above-mentioned
The composite fibre 1 is collectively formed in the two.Preferably, which coats the whole outer peripheral surface of the core 11.The core 11 and
The sheath portion 12 can with one heart (concentric)；Alternatively, the core 11 and the sheath portion 12 can be formed asymmetric with decentraction
Core sheath (eccentric core-skin, eccentric core-sheath) structure.
It illustrates herein, which may include single core 11 and single sheath portion 12；Alternatively, this is compound
Fiber 1 may include that single sheath portion 12 coats a plurality of cores 11, such as the structure of " island Yu Haizhong (islands in a sea) ".
Further saying it, the present invention is also not excluded for coating the situation of the core 11 layer by layer with a plurality of sheath portions 12 with multilayered structure,
Such as the composite fibre 1 may include that the first sheath portion directly coats the core 11, and further include the second sheath portion be coated on this first
The outside of sheath portion.
In more detail, the present invention does not also limit the section shape of the core 11, the sheath portion 12 and the composite fibre 1.It should
The section of composite fibre 1 can be circle, ellipse, triangle, square and cross etc., and the core 11 and the sheath portion 12
Section shape also can be with identical or different.
The core 11 and the sheath portion 12 all high molecular polymer can be used to be made, such as can be macromolecular elastomer.This
Outside, single material can be used respectively and be made for the core 11 and sheath portion 12, or use includes two kinds or more ingredients, with different melting points
Material mixes.Preferably, which is made using thermal plastic high polymer elastomer.The core 11 does not limit then using heat
Plasticity or thermosetting polymer polymer；The considerations of only in accordance with use demand and processing procedure convenience, is, it is preferable to use thermoplasticity high score
Sub- polymer.The thermoplastic polyester may include, but are not limited to thermoplastic polyurethane (thermoplastic
Polyurethane, abbreviation TPU), thermoplastic polyester elastomer (thermoplastic polyester elastomer, referred to as
) or thermoplastic polyolefin (thermoplastic polyolefin, abbreviation TPO) etc. TPEE.
Herein and described thereafter, " thermoplasticity ", which refers to, the spies such as solidifies, can soften once again when it has heating after-tack, cooling
Property；" elastomer " refers to its property with rubber like, such as with viscoplasticity (viscoelasticity), intermolecular
Active force is lower, has lower Young's modulus (Young ' s modulus) and lower failure strain.For example, elastic
The Young's modulus of body can be down to about 3MPa, and can deformation occurs without destroying its knot in the range of extensively to 5% to 700%
Structure.
Thermoplastic polyurethane, such as the polyester polyurethane derived from adipic acid esters (adipic acid esters)
(polyester-based TPU), the polyether polyurethane based on tetrahydrofuran ethers (tetrahydrofuran ether)
(polyether-based TPU)；Thermoplastic polyester elastomer, such as polyethylene terephthalate (polyethylene
Terephthalate, abbreviation PET) or polybutylene terephthalate (polybutylene terephthalate, referred to as
PBT)；Thermoplastic polyolefin, such as polyethylene (polyethylene, abbreviation PE), polypropylene (polypropylene, abbreviation
PP)。
In composite fibre 1 of the invention, the fusing point of the sheath portion 12 is lower than about 60 DEG C to about 160 of fusing point of the core 11
℃.Also that is, the fusing point of the sheath portion 12 is lower, and the fusing point of the core 11 is higher, and the melting temperature difference of the two is about 60 DEG C to about
160℃.Preferably, the fusing point of the sheath portion 12 is lower than about 60 DEG C to about 140 DEG C of fusing point of the core 11；It is highly preferred that the sheath portion
12 fusing point is lower than about 80 DEG C to about 120 DEG C of fusing point of the core 11.
Since the fusing point of the sheath portion 12 is lower, therefore the composite fibre 1 can be used directly as fused yarns.Also that is, if
It can make the sheath portion since the fusing point of sheath portion 12 is lower, therefore when heating, pressurizeing to fabric with the composite fibre 1 production fabric
12 meltings, and hot melt adhesive is provided, to change the connection relationship in fabric between composite fibre 1, or make fabric can be with other
Fabric bonding, or the appearance of fabric, lines texture can be further changed etc.；On the other hand, due to the fusing point of the core 11
It is higher, the structural strength, feel and dimensional stability of the composite fibre 1 can be maintained, such as make fabric that can still maintain appearance
And shape, it is unlikely to excessive softness, and when heating, pressurizeing to fabric, which does not melt, and can make the size of fabric not
Therefore change, be also less likely to occur the problem of global shape substantially changes.
In general, the fusing point of high molecular polymer is not usually single numerical value, but one section of numberical range, and be easy with
Preparation condition and change, usually may all have small-scale error per a batch of fusing point.Therefore, if the core 11 and the sheath portion
12 different melting points are less than 60 DEG C, then when heating, pressurization melt the sheath portion 12, which is easy to happen partial melting
Situation；Conversely, since different melting points are excessive, it is multiple to will lead to this if the core 11 and the different melting points of the sheath portion 12 are greater than 160 DEG C
The manufacture difficulty of mould assembly fiber 1 increases, or even keeps the binding force between the core 11 and the sheath portion 12 poor.
Furthermore it, separately can be into one in addition to the intensity appropriate of composite fibre 1 is provided due to the fusing point of the core 11 height
Walk control of percentage elongation；And since the fusing point of the sheath portion 12 is lower, then it can provide the lower initial modulus of composite fibre 1, make
The composite fibre 1 is suitable for the purposes such as weaving.Composite fibre 1 of the invention has softness, plastic type, physical property good
And the characteristics such as abrasion performance.
In certain embodiments, the material of the core 11 is selected from thermoplastic polyurethane, thermoplastic polyester elastomer and thermoplastic
Property polyolefin, and the fusing point of the core 11 be greater than 180 DEG C, be greater than 200 DEG C, or be greater than 220 DEG C；Such as the fusing point of the core 11 can
Between about 180 DEG C to 270 DEG C of range.
For example, usable fusing point is greater than about 180 DEG C of thermoplastic polyester elastomer, including but not limited to poly- to benzene two
Formic acid second diester (polyethylene terephthalate, abbreviation PET) or polybutylene terephthalate
(polybutylene terephthalate, abbreviation PBT) etc..
Preferably, the material of the core 11 can be polybutylene terephthalate, and its inherent viscosity can be 70cm3/ g is extremely
110cm3/g。
Similarly, the material of the sheath portion 12 is selected from thermoplastic polyurethane, thermoplastic polyester elastomer and thermoplastic polyolefin,
And the fusing point of the sheath portion 12 can be between about 60 DEG C to 120 DEG C of range.
For example, thermoplastic polyurethane of the fusing point less than 120 DEG C can be used, or use the thermoplastic poly less than 120 DEG C
Alkene, such as low density polyethylene (LDPE) (low-density polyethylene).
In the composite fibre 1, same category but fusing point is can be used in the material of the material of the core 11 and the sheath portion 12
Different high molecular polymers, such as use thermoplastic polyurethane with different melting points；Alternatively, the core 11 and the sheath portion 12 can make
It is made of the different high molecular polymer of classification.In certain embodiments, the core 11 and sheath portion 12 use same category of material
Material can make binding force between the core 11 and sheath portion 12 more preferably.In addition, in certain embodiments, the core 11 and the sheath portion
12 all use thermoplastic polyurethane, and the composite fibre 1 can be made to have soft feel.
Composite fibre 1 of the invention does not limit the ratio of the core 11 and sheath portion 12.However, in certain embodiments,
The volume ratio of the core 11 and the sheath portion 12 is preferably between the range of 2:8 to 8:2, for example, between 3:7 to 7:3 range, between
The range of 4:6 to 6:4 or the range for being about 5:5.Via the selection of the core 11 and the volume ratio of sheath portion 12, it is compound to can adjust this
Intensity, elasticity, hot melt adhesive and suitable hot pressing temperature of fiber type 1 etc., and make the application of the composite fibre 1 can be more wide
It is general.
In certain embodiments, the Shore hardness (Shore D) of the core 11 can be higher than 60D, and the Shore of the sheath portion 12
Hardness (Shore A) can be lower than 80A.Shore hardness (Shore A&Shore D) described herein, such as with U.S. material and test
The method measurement that association ASTM D2240-15 is standardized.Alternatively, in the composite fibre 1, the Shore hardness of the core 11
(Shore D) can be 60D to 90D or more；The Shore hardness (Shore A) of the sheath portion 12 can be 40A to 80A.It is selected by hardness
It selects, the properties such as the intensity and elasticity that can adjust the composite fibre 1 into one.
The manufacture of above-mentioned composite fibre 1 may be selected to be compound extruded (co-extrusion), such as spin mouth using core sheath
Component (core-skin spinneret, sheath and core spinneret) while the extrusion molding core 11 and the sheath portion 12；Or
Person after can first forming the core 11, forms the sheath portion 12 in the periphery of the core 11 in a manner of coating, the present invention is not limited
System.
Shown in referring to figure 2., the process of the manufacturing method of the composite fibre of some embodiments according to the present invention is shown
Schematic diagram.This method can be used for manufacturing above-mentioned composite fibre 1.
Firstly, providing core material (such as step 20) and provides sheath portion material (such as step 22), wherein the sheath portion material
Fusing point is lower than about 60 DEG C to about 160 DEG C of fusing point of the core material.The selection of the core material and the sheath portion material can refer to
The core 11 of composite fibre 1 and the material of sheath portion 12 are stated, details are not described herein.According to selected practical material, the core
Material and the sheath portion material can be provided by different form.For example, if selection thermoplastic polyester, usually with
Granular form provides.
It due to the requirement of fiberizing, and is the physical property of adjustment gained composite fibre, the core material and the sheath
Portion's material preferably has low moisture content, such as moisture content must be less than 300ppm hereinafter, preferably smaller than 100ppm or less.Therefore,
Before making the sheath portion material and the melts core material, this method can also comprising the dry core material (such as step 24) and
Dry sheath portion material (such as step 26), to reduce its moisture content.In general, the dry temperature used is molten lower than material
Point, such as the core material, be usually dried with about 90 DEG C to about 120 DEG C of temperature, preferably from about 100 DEG C are extremely
About 120 DEG C；For the sheath portion material, then usually about 40 DEG C to about 70 DEG C of temperature is selected to be dried, preferably from about 50
DEG C to about 60 DEG C.
Then, make the core material and the sheath portion material molten respectively.For example, which can be put into first
Extruder (such as step 28), and the heating method of segmentation, multi-temperature is set from feeding inlet to discharge port, keep the core material molten
Melt.Similarly, the sheath portion material can (such as step 30) makes its melting via the second extruder.
Core material and the sheath portion material of melting will converge into core sheath spinning mouth component, and (such as step 32) then makes this
Core material and the sheath portion material are extruded into silk (such as step 34), to form the composite fibre 1 jointly.The core sheath spins mouth component
Outs open correspond to the kenel of the core 11, other part is open the kenel of the corresponding sheath portion 12, and make the sheath portion material shape
At the sheath portion 12, and the core material is set to form the core 11, and the sheath portion 12 coats the core 11.According to production demand and set
Standby characteristic, can be used multifilament melt-spun (multi-filament) processing procedure or monofilament melt-spun (mono-filament) processing procedure herein, this
It invents without restriction.
After making the core material and the sheath portion material spin mouth component extrusion via core sheath jointly, this method separately may include
Make composite fibre cooling and shaping (such as step 36).Cooling and shaping described herein preferably enters the composite fibre 1 cold
But sink (its water temperature is slightly below room temperature), and cool and solidify the sheath portion material of molten condition and the core material can rapidly.
In addition, this method, which also can further include, stretches the compound fibre after making the composite fibre cooling and shaping
Tie up 1 (such as step 38).For example, it can be somebody's turn to do by 1 times to about 5 times of the draw ratio composite fibre 1 is greater than with being promoted
The intensity of composite fibre 1.Furthermore can the multi-drawing composite fibre 1, it is without restriction herein.
Hereby with the manufacturing method of the following example composite fibre that the present invention will be described in detail, but it is not meant to the present invention
It is limited only to the revealed content of these embodiments.
Embodiment one:
Prepare the PBT ester grain of new photosynthesis fiber offer as core material, inherent viscosity (Intrinsic
Viscosity, abbreviation IV) it is 87cm3/g.The core material (fusing point is 228 DEG C) is 4 hours dry with 110 DEG C of temperature, with
Detection moisture content is less than 100ppm afterwards.In addition, preparing the TPU ester grain conduct that BASF AG (BASF Corporation) is provided
Sheath portion material, Shore hardness (Shore A) are 75A, and fusing point is 120 DEG C.The sheath portion material is small with 60 DEG C of temperature dry 5
When, it then detects moisture content and is less than 300ppm.
Dry core material completed is delivered to the first extruder, sequentially set from feeding inlet to discharge port 215 DEG C,
245 DEG C, 245 DEG C and 240 DEG C of temperature makes its melting；Dry sheath portion material completed separately is delivered to the second extruder, from
The temperature that feeding inlet sequentially sets 90 DEG C, 130 DEG C, 125 DEG C and 120 DEG C to discharge port makes its melting.
Then, the molten state core material and the sheath portion material are squeezed into core sheath with the volume ratio of 8:2 simultaneously and spin mouth
Component carries out spinning, to form the composite fibre.After the composite fibre leaves spinning mouth component, can enter water temperature is 18 DEG C
Cooling trough, so that the composite fibre cooling and shaping.
Then, which can pass through the first drawing rollers (first drawing rollers), surface linear speed
Degree is 15m/min, the first drawing-off hot water storgae that temperature is 70 DEG C is then passed through, using the second drawing rollers (second
Drawing rollers), linear resonance surface velocity 35m/min, by the speed difference of the second drawing rollers and the first drawing rollers
The composite fibre is stretched, stretching ratio is about 2.333 times.Later, it can be led using second that temperature is 110 DEG C
Hot wind slot is stretched, using third drawing rollers (third drawing rollers), linear resonance surface velocity 80m/min, then by
Second of drawing-off is carried out to the composite fibre by the speed difference of third drawing rollers and the second drawing rollers, stretching ratio is about
It is 2.2 times, to promote its intensity.
Finally, the composite fibre can be wound to form spool (bobbin) via up- coiler (winder).Measure implementation
The physical property of the composite fibre of example one: fineness 300den (denier), intensity 2.6g/den, elongation at break 51%, such as the following table 1 institute
Show.
Embodiment two:
Prepare the PBT ester grain of BASF AG (BASF Corporation) offer as core material, fusing point 226
DEG C, inherent viscosity 107cm3/g.The core material is 4 hours dry with 110 DEG C of temperature, it then detects moisture content and is less than
100ppm.In addition, prepare TPU ester grain that Lubrizol Corp. (Lubrizol Corporation) is provided as sheath portion material,
Shore hardness (Shore A) is 64A, and fusing point is 108 DEG C.The sheath portion material is 5 hours dry with 50 DEG C of temperature, then detect
Moisture content is less than 250ppm.
Dry core material completed is delivered to the first extruder, sequentially set from feeding inlet to discharge port 220 DEG C,
260 DEG C, 255 DEG C and 250 DEG C of temperature makes its melting；Dry sheath portion material completed separately is delivered to the second extruder, from
The temperature that feeding inlet sequentially sets 70 DEG C, 120 DEG C, 115 DEG C and 115 DEG C to discharge port makes its melting.
Then, the molten state core material and the sheath portion material are squeezed into core sheath with the volume ratio of 4:6 simultaneously and spin mouth
Component carries out spinning, to form the composite fibre.After the composite fibre leaves spinning mouth component, can enter water temperature is 14 DEG C
Cooling trough, so that the composite fibre cooling and shaping.
Then, which can pass through the first drawing rollers, and linear resonance surface velocity 18m/min then passes through temperature
The first drawing-off hot water storgae that degree is 65 DEG C, using the second drawing rollers, linear resonance surface velocity 55m/min is led by second
The speed difference for stretching roller and the first drawing rollers stretches the composite fibre, and stretching ratio is about 3.05 times.Later,
It can be 100 DEG C of the second drawing-off hot wind slot using temperature, using third drawing rollers, linear resonance surface velocity 90m/min,
Second of drawing-off is carried out to the composite fibre by the speed difference of third drawing rollers and the second drawing rollers again, is stretched again
Rate is about 1.63 times, to promote its intensity.
Finally, the composite fibre can be wound to form spool via up- coiler.Measure the composite fibre of embodiment two
Physical property: fineness 300den, intensity 2.3g/den, elongation at break 67%, as shown in table 1 below.
Embodiment three:
Prepare the TPEE ester grain of Dongyang spinning company (TOYOBO Co., LTD.) offer as core material, Shore hardness
(Shore A) is 98A, and fusing point is 200 DEG C.The core material is 4 hours dry with 100 DEG C of temperature, then detect moisture content
Less than 80ppm.In addition, preparing the TPO ester grain of Li Changrong chemical industrial company offer as sheath portion material, melting rate
(melt flow rate, abbreviation MFR) is 11g/10min, and fusing point is 95 DEG C.
Dry core material completed is delivered to the first extruder, sequentially set from feeding inlet to discharge port 185 DEG C,
225 DEG C, 230 DEG C and 230 DEG C of temperature makes its melting；The sheath portion material is separately delivered to the second extruder, from feeding inlet to out
The temperature that material mouth sequentially sets 60 DEG C, 120 DEG C, 115 DEG C and 115 DEG C makes its melting.
Then, the molten state core material and the sheath portion material are squeezed into core sheath with the volume ratio of 5:5 simultaneously and spin mouth
Component carries out spinning, to form the composite fibre.After the composite fibre leaves spinning mouth component, can enter water temperature is 25 DEG C
Cooling trough, so that the composite fibre cooling and shaping.
Then, which can pass through the first drawing rollers, and linear resonance surface velocity 20m/min then passes through temperature
The first drawing-off hot water storgae that degree is 80 DEG C, using the second drawing rollers, linear resonance surface velocity 65m/min is led by second
The speed difference for stretching roller and the first drawing rollers stretches the composite fibre, and stretching ratio is about 3.25 times.Later,
It can be 100 DEG C of the second drawing-off hot wind slot using temperature, using third drawing rollers, linear resonance surface velocity 75m/min,
Second of drawing-off is carried out to the composite fibre by the speed difference of third drawing rollers and the second drawing rollers again, is stretched again
Rate is about 1.15 times, to promote its intensity.
Finally, the composite fibre can be wound to form spool via up- coiler.Measure the composite fibre of embodiment three
Physical property: fineness 300den, intensity 2.4g/den, elongation at break 77%, as shown in table 1 below.
Comparative example one:
Prepare the PET ester grain of new photosynthesis fiber offer as material, inherent viscosity 64cm3/g.By the material with
120 DEG C of temperature is 4 hours dry, then detects moisture content and is less than 100ppm.
Dry PET material completed is delivered to extruder, sequentially sets 240 DEG C, 250 to discharge port from feeding inlet
DEG C, the temperature of 260 DEG C and 270 DEG C make its melting, subsequently entering 20 DEG C of cooling trough solidifies fiber, then, passes through
First drawing rollers, linear resonance surface velocity 20m/min then pass through the first drawing-off hot water storgae at a temperature of 90 °C, using
Second drawing rollers, linear resonance surface velocity 65m/min, by the speed difference of the second drawing rollers and the first drawing rollers to this
Fiber is stretched, and stretching ratio is about 3.25 times.Later, the second drawing-off hot wind slot that can be 120 DEG C using temperature, then
By third drawing rollers, linear resonance surface velocity 100m/min, then the speed by third drawing rollers and the second drawing rollers
Difference carries out second of drawing-off to the fiber, and stretching ratio is about 1.5 times, to promote its intensity.
Finally, can be via up- coiler, by its fiber roll around formation spool.Measure the fibrous physical property of comparative example one: fineness
300den, intensity 4.3den, elongation at break 28%, as shown in table 1 below.
Comparative example two:
Prepare the PBT ester grain of new photosynthesis fiber offer as material, inherent viscosity 87cm3/g.By the material with
110 DEG C of temperature is 4 hours dry, then detects moisture content and is less than 100ppm.
Dry PBT material completed is delivered to extruder, sequentially sets 230 DEG C, 240 to discharge port from feeding inlet
DEG C, the temperature of 250 DEG C and 260 DEG C make its melting, subsequently entering 20 DEG C of cooling trough solidifies fiber, then, passes through
First drawing rollers, linear resonance surface velocity 18m/min then pass through the first drawing-off hot water storgae at a temperature of 90 °C, using
Second drawing rollers, linear resonance surface velocity 64m/min, by the speed difference of the second drawing rollers and the first drawing rollers to this
Fiber is stretched, and stretching ratio is about 3.5 times.Later, the second drawing-off hot wind slot that can be 100 DEG C using temperature, then
By third drawing rollers, linear resonance surface velocity 90m/min, then the speed difference by third drawing rollers and the second drawing rollers
Second of drawing-off is carried out to the composite fibre, stretching ratio is about 1.4 times, to promote its intensity.
Finally, can be via up- coiler, by its fiber roll around formation spool.Measure the fibrous physical property of comparative example two: fineness
300den, intensity 3.1g/den, elongation at break 43%, as shown in table 1 below.
Comparative example three:
Prepare the TPU ester grain of BASF AG's offer as material, Shore hardness (Shore A) is 75A, and fusing point is
120℃.The sheath portion material is 5 hours dry with 60 DEG C of temperature, it then detects moisture content and is less than 300ppm.
The dry TPU material completed is delivered to extruder, sequentially set from feeding inlet to discharge port 60 DEG C, 120 DEG C,
115 DEG C and 115 DEG C of temperature makes its melting, subsequently enters 10 DEG C of cooling trough and solidifies fiber, then, by first
Drawing rollers, linear resonance surface velocity 18m/min then pass through the first drawing-off hot water storgae that temperature is 35 DEG C, using second
Drawing rollers, linear resonance surface velocity 40m/min, by the speed difference of the second drawing rollers and the first drawing rollers to the fiber
It is stretched, stretching ratio is about 2.2 times.It later, can be 50 DEG C of the second drawing-off hot wind slot using temperature, using the
Three drawing rollers, linear resonance surface velocity 64m/min, then it is multiple to this by the speed difference of third drawing rollers and the second drawing rollers
Mould assembly fiber carries out second of drawing-off, and stretching ratio is about 1.6 times, to promote its intensity.
Finally, can be via up- coiler, by its fiber roll around formation spool.Measure the fibrous physical property of comparative example three: fineness
300den, intensity 1.2g/den, elongation at break 260%, as shown in table 1 below.
Comparative example four:
Prepare the TPEE ester grain of TOYOBO offer as material, Shore hardness (Shore A) is 98D, fusing point 210
℃.TPEE material is delivered to extruder, 240 DEG C, 250 DEG C, 255 DEG C and 260 DEG C are sequentially set from feeding inlet to discharge port
Temperature makes its melting, subsequently enters 25 DEG C of cooling trough and solidifies fiber, then, by the first drawing rollers, table
Upper thread speed is 20m/min, the first drawing-off hot water storgae that temperature is 40 DEG C is then passed through, using the second drawing rollers, table
Upper thread speed is 40m/min, is stretched by the speed difference of the second drawing rollers and the first drawing rollers to the fiber, is drawn
Stretching multiplying power is about 2 times.Later, the second drawing-off hot wind slot that can be 50 DEG C using temperature, using third drawing rollers, surface
Linear velocity is 48m/min, then carries out the to the composite fibre by the speed difference of third drawing rollers and the second drawing rollers
Secondary drawing-off, stretching ratio are about 1.2 times, to promote its intensity.
Finally, can be via up- coiler, by its fiber roll around formation spool.Measure the fibrous physical property of comparative example four: fineness
300den, intensity 1.3g/den, elongation at break 160%, as shown in table 1 below
Comparative example five:
Prepare the TPO ester grain of Vistamaxx offer as material, Shore hardness (Shore A) is 27A, fusing point 60
℃.TPO material is delivered to extruder, 90 DEG C, 120 DEG C, 160 DEG C and 160 DEG C of temperature is sequentially set from feeding inlet to discharge port
Degree makes its melting, and subsequently entering 14 DEG C of cooling trough solidifies fiber, then, by the first drawing rollers, surface
Linear velocity is 20m/min, the first drawing-off hot water storgae that temperature is 40 DEG C is then passed through, using the second drawing rollers, surface
Linear velocity is 60m/min, is stretched by the speed difference of the second drawing rollers and the first drawing rollers to the fiber, is stretched
Multiplying power is about 3 times.Later, the second drawing-off hot bellows that can be 50 DEG C using temperature, using third drawing rollers, surface line
Speed is 82m/min, then carries out second to the composite fibre by the speed difference of third drawing rollers and the second drawing rollers
Secondary drawing-off, stretching ratio are about 1.36 times, to promote its intensity.
Finally, can be via up- coiler, by its fiber roll around formation spool.Measure the fibrous physical property of comparative example five: fineness
300den, intensity 2.0g/den, elongation at break 244%, as shown in table 1 below.
Example two and embodiment one are compared, referring to upper table 1 it is found that the intensity of comparative example two is higher but elongation and elasticity are returned
It is multiple significant lower, embodiment one (PBT and TPU volume ratio 8:2) though intensity decline 16.1%, its elongation at break and elasticity
Response rate promotes 18.6% and 155.3% respectively, though that is, this composite fibre intensity have a little decline, elastic recovery rate is then
It is significantly promoted, so composite fibre can provide more diversity in use.
Example two and embodiment two are compared, embodiment two (PBT and TPU volume ratio 4:6) is in intensity and lower, but disconnected
The then promotion 55.8% and 559.5% respectively of elongation and elastic recovery rate is split, furthermore, the Shore of TPU used by embodiment two
Hardness is 64A, keeps obtained composite fibre more soft, and has adherence after heating, and processing characteristics are more various.
Above-described embodiment is only to illustrate the principle of the present invention and its effect, is not intended to limit the present invention.Technology belonging to the present invention
The modification and variation that the technical staff in field makes above-described embodiment are still without prejudice to spirit of the invention.Right model of the invention
Enclosing should be as listed by the scope of the appended claims.
Claims (10)
1. a kind of composite fibre, includes:
Core；And
Sheath portion, coats the core, and the fusing point of the sheath portion is lower than 60 DEG C to 160 DEG C of fusing point of the core.
2. composite fibre as described in claim 1, wherein the material of the core is selected from thermoplastic polyurethane
(thermoplastic polyurethane), thermoplastic polyester elastomer (thermoplastic polyester
Elastomer) and thermoplastic polyolefin (thermoplastic polyolefin), and the fusing point of the core is greater than 180 DEG C.
3. composite fibre as described in claim 1, wherein the material of the sheath portion is selected from thermoplastic polyurethane, thermoplastic polyester
Elastomer and thermoplastic polyolefin, and the fusing point of the sheath portion is less than 120 DEG C.
4. composite fibre as described in claim 1, wherein the volume ratio of the core and the sheath portion is 2:8 to 8:2.
5. composite fibre as described in claim 1, wherein the Shore hardness (Shore D) of the core is higher than 60D, and the sheath
The Shore hardness (Shore A) in portion is lower than 80A.
6. composite fibre as described in claim 1, wherein the material of the core is polybutylene terephthalate, and it is special
Property viscosity be 70cm3/ g to 110cm3/g。
7. a kind of manufacturing method of composite fibre, includes:
Core material and sheath portion material are provided, wherein the fusing point of the sheath portion material is lower than about 60 DEG C of fusing point of the core material to about
160℃；
Make the core material and the sheath portion material molten；And
Make the core material and the sheath portion material spin mouth component (sheath and core spinneret) via core sheath jointly to squeeze
Out, to form the composite fibre, wherein the core material forms core, which forms sheath portion, and the sheath portion coats
The core.
8. the manufacturing method of composite fibre as claimed in claim 7, make the core material and the sheath portion material molten it
Before, it further include the dry core material and the sheath portion material.
9. the manufacturing method of composite fibre as claimed in claim 7 passes through the core material and the sheath portion material jointly
It further include making the composite fibre cooling and shaping after spinning mouth component extrusion by core sheath.
10. the manufacturing method of composite fibre as claimed in claim 9, after making the composite fibre cooling and shaping, also
Including stretching the composite fibre.
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| CN201810073554.2A CN110079893A (en) | 2018-01-25 | 2018-01-25 | Composite fibre |
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| CN201810073554.2A CN110079893A (en) | 2018-01-25 | 2018-01-25 | Composite fibre |
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| EP3505660A1 (en) * | 2017-12-28 | 2019-07-03 | San Fang Chemical Industry Co., Ltd. | Conjugated fiber |
| CN112981962A (en) * | 2021-02-07 | 2021-06-18 | 杭州易川塑业有限公司 | Polyester covered yarn, preparation method thereof and high-fatigue-resistance mesh cloth |
| CN113338036A (en) * | 2020-03-03 | 2021-09-03 | 林俊伟 | Composite yarn |
| CN115537950A (en) * | 2021-06-30 | 2022-12-30 | 三芳化学工业股份有限公司 | Elastic fiber, elastic fiber covered yarn and spinning manufacturing method thereof |
| CN116065261A (en) * | 2021-11-02 | 2023-05-05 | 南亚塑胶工业股份有限公司 | Thermoplastic polyester elastomer composite fiber, method for producing same, and fabric |
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