CN110257956A - A kind of elastic wear-resisting composite fibre and preparation method thereof - Google Patents
A kind of elastic wear-resisting composite fibre and preparation method thereof Download PDFInfo
- Publication number
- CN110257956A CN110257956A CN201910557734.2A CN201910557734A CN110257956A CN 110257956 A CN110257956 A CN 110257956A CN 201910557734 A CN201910557734 A CN 201910557734A CN 110257956 A CN110257956 A CN 110257956A
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- China
- Prior art keywords
- composite fibre
- elastic wear
- surface layer
- resisting composite
- thermoplastic polyurethane
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Classifications
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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
- D01F8/16—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
Abstract
The invention discloses a kind of elastic wear-resisting composite fibre, the composite fibre includes surface layer and inner core, core in the surface layer cladding；The inner core is high melt point thermoplastic polyurethane and polyurethane ester complexes, and the surface layer is low melting point thermoplastic polyurethane.Elastic wear-resisting composite fibre provided by the invention has preferable elastic property, and shrinking percentage is higher, higher elastic extension and elastic recovery rate can be obtained after extension, while having preferable wear-resisting property.
Description
Technical field
The present invention relates to composite fibre technology fields, and in particular to a kind of elastic wear-resisting composite fibre and preparation method thereof.
Background technique
Composite fibre is a kind of man-made fibers to grow up the sixties in the world, two of them component it is compound
Fiber is also referred to as bicomponent fibre or conjugate fibre.It is to melt two kinds of different fiber-forming polymers such as component, proportion, viscosity
Body is respectively delivered to a filament spinning component, converges in the suitable position of the component, and spraying from each spinneret orifice of component becomes one
The compound single fiber of the bi-component of root root.
Parallel composite fiber is the composite fibre kind that exploitation is earliest, yield is larger, important, and initial people are grinding
When studying carefully, developing composite fibre, the crimpiness elasticity that natural wool is simulated with chemical fibre is mainly want.As people are to microstructure
Deepen continuously, it is found that the cross section of wool is different from other natural fibers, it is by being approximately two semicircle, close each other
What the orthocortex and paracortex being bonded together were constituted.This two-part various structural unit (fento crystal region and region of disorder etc.)
Property and arrangement be different.It is smaller in drying regime paracortex shrinkage ratio orthocortex, therefore cause axially mutual along fiber
It surround or rives off mutually, and spiral helicine main body curling is presented.It is crimped naturally with height and the compound fibre of the parallel type of bulkiness
What dimension was exactly succeeded in developing under the bionical enlightenment of wool class angle protein fiber.The preparation method of this composite fibre is: by thermal expansion and contraction
Or the different two kinds of polymer of wet swell-shrink characteristic is spun into a single fiber side by side, passes through heating as two kinds of cortex of sheepskin
It is allowed to shrink, can be obtained by spiral helicine conjugate in this way.Since this crimp comes from the inwardness of fiber, thus with
General fiber is different with the curling and deformation that mechanism is formed by external application heat, and this curling is permanent.
Especially in the parallel composite fiber made of thermoplastic polyurethane, due to thermoplastic polyurethane have elasticity compared with
The disadvantage of difference, therefore the potential shrinking percentage of fiber obtained is not high, and higher elastic extension cannot be obtained after extension and elasticity is returned
It is multiple.
Summary of the invention
It is an object of the invention to overcome the problems, such as drawbacks described above present in background technique or, it is multiple to provide a kind of elastic wear-resisting
Condensating fiber and preparation method thereof, to solve the problems, such as that parallel composite fiber elasticity is poor in the prior art.
To reach above-mentioned purpose, the present invention adopts the following technical scheme:
A kind of elastic wear-resisting composite fibre, the composite fibre include surface layer and inner core, core in the surface layer cladding；It is described
In core be high melt point thermoplastic polyurethane and polyurethane ester complexes, the surface layer be low melting point thermoplastic polyurethane.
Further, in the composite fibre in core, the quality of high melt point thermoplastic polyurethane and polyurethanes
Than for 3~9:1.
Further, core and the mass ratio on surface layer are 1~4:1 in the composite fibre.
Further, the fusing point of core is 150 DEG C~280 DEG C in the composite fibre, and the fusing point on surface layer is 95 DEG C~180
℃。
The present invention also provides a kind of preparation methods of elastic wear-resisting composite fibre, comprising the following steps:
Step 1: high melt point thermoplastic polyurethane and polyurethanes are put into compound extruded after screw extruder；
Step 2: high melt point thermoplastic polyurethane and polyurethane ester complexes are sent into spinning manifold, core in formation
Material；
Step 3: low melting point thermoplastic polyurethane is squeezed out through screw extruder, it is sent into spinning manifold, forms surface layer material；
Step 4: evenly distributing inner core material and surface layer material into spinning manifold, progress component is compound, is extruded into nascent
Silk；
Step 5: spun filament is formed the elastic wear-resisting composite fibre by side-blown air cooling and after stretching.
Further, in step 2, the intracorporal temperature of manifold is 195 DEG C.
Further, in step 3, the temperature of spinning manifold is 160 DEG C.
Further, the temperature of the side-blown cold front heavy rain is 15~25 DEG C, and wind speed is 0.2m/s~0.45m/s, relatively
Humidity is 55%~80%.
Further, the speed of the stretching is 500m/min~1200m/min.
By the above-mentioned description of this invention it is found that compared with the existing technology, have following of the present invention the utility model has the advantages that
1, skin-core structure is formed, surface layer is low melting point thermoplastic polyurethane, and composite fibre can be made in subsequent process for producing
Melted in the process using lower temperature, facilitates subsequent production operation, while there is preferable wear-resisting property, improve
The abrasion resistant effect of composite fibre.
2, skin-core structure is formed, inner core is the composite material of high melt point thermoplastic polyurethane and polyurethanes, can be made
Composite fibre elasticity with higher, while solving the disadvantage that polyurethanes cannot independent woven fabric.
3, the composite fibre of skin-core structure obtained has preferable elastic property, and shrinking percentage is higher, can obtain after extension
Higher elastic extension and elastic recovery rate, while there is preferable wear-resisting property.
4, composite fibre obtained can be handled in subsequent processing by thermal-adhering, melt fiber surface, while not shadow
Ring fibre property.
5, production process is environmentally protective, low energy consumption.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below to needed in embodiment description
Attached drawing is briefly described, it should be apparent that, drawings in the following description are some embodiments of the invention, for this field
For those of ordinary skill, without creative efforts, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is a kind of structural schematic diagram of elastic wear-resisting composite fibre provided by the invention.
Main appended drawing reference explanation:
1, inner core；2, surface layer.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description.Obviously, described embodiment is the preferred embodiment of the present invention, and is not to be seen as the row to other embodiments
It removes.Based on the embodiment of the present invention, those skilled in the art are obtained all under the premise of not making creative work
Other embodiments shall fall within the protection scope of the present invention.
In claims of the present invention, specification and above-mentioned attached drawing, unless otherwise specifically limited, such as using term " the
One ", " second " or " third " etc. are provided to distinguish different objects, be not use to describe a particular order.
In claims of the present invention, specification and above-mentioned attached drawing, unless otherwise specifically limited, for the noun of locality, such as
Using term " center ", " transverse direction ", " longitudinal direction ", "horizontal", " vertical ", "top", "bottom", "inner", "outside", "upper", "lower",
The indicating positions such as "front", "rear", "left", "right", " clockwise ", " counterclockwise " or positional relationship are orientation based on the figure
And positional relationship, and be merely for convenience of the narration present invention and simplify description, rather than the device or member of indication or suggestion meaning
Part must have a particular orientation or be constructed and operated in a specific orientation, so can not be interpreted as limiting of the invention specific
Protection scope.
In claims of the present invention, specification and above-mentioned attached drawing, unless otherwise specifically limited, such as using term " Gu
Connect " or " being fixedly connected ", it should broadly understood, i.e., between the two without any connection side of displacement relation and relative rotation relationship
Formula, that is to say, that including be unremovably fixedly connected with, be removably secured connection, be linked together and by other devices or
Element is fixedly connected.
In claims of the present invention, specification and above-mentioned attached drawing, such as using term " includes ", " having " and they
Deformation, it is intended that " including but not limited to ".
A kind of structural schematic diagram of elastic wear-resisting composite fibre provided by the invention is shown referring to Fig. 1, Fig. 1 comprising
In core 1 and surface layer 2, surface layer 2 coat in core 1, inner core 1 be high melt point thermoplastic polyurethane and polyurethane ester complexes, table
Layer 2 is low melting point thermoplastic polyurethane.All embodiments of the invention are respectively formed skin-core structure as shown in Figure 1.
The technical solution of elastic wear-resisting composite fibre provided by the invention is further illustrated below by way of specific embodiment.
Embodiment 1
Elastic wear-resisting composite fibre is prepared by following procedure:
High melt point thermoplastic polyurethane that mass ratio is 85:15 and polyurethanes is taken to be put into compound after screw extruder
Extrusion obtains compound material, and compound material is sent into spinning manifold, and setting manifold body temperature is 195 DEG C, obtains inner core material；Take with
Compound material mass ratio is the low melting point thermoplastic polyurethane of 50:50, puts it into after screw extruder squeezes out and is sent into spinning manifold,
And it is 160 DEG C that manifold body temperature, which is arranged, obtains surface layer material；Core material and surface layer material are evenly distributed to spinning in obtaining later
In silk cabinet, and by checking metering pump in cabinet, the additional amount of the two is calculated, it is ensured that the ratio of the two is 1.5:1, carries out group
It is point compound, it is extruded into spun filament；Side-blown air cooling and stretched operation are carried out to spun filament, the temperature of side-blown air cooling is 20
DEG C, wind speed 0.3m/s, relative humidity 75%, tensile speed 800m/min finally obtains elastic wear-resisting composite fibre.
Embodiment 2
High melt point thermoplastic polyurethane that mass ratio is 70:30 and polyurethanes is taken to be put into compound after screw extruder
Extrusion obtains compound material, and compound material is sent into spinning manifold, and setting manifold body temperature is 195 DEG C, obtains inner core material；Take with
Compound material mass ratio is the low melting point thermoplastic polyurethane of 65:35, puts it into after screw extruder squeezes out and is sent into spinning manifold,
And it is 160 DEG C that manifold body temperature, which is arranged, obtains surface layer material；Core material and surface layer material are evenly distributed to spinning in obtaining later
In silk cabinet, progress component is compound, is extruded into spun filament；Side-blown air cooling and stretched operation, cross air blasting are carried out to spun filament
Cooling temperature is 20 DEG C, wind speed 0.3m/s, and relative humidity 75%, tensile speed 800m/min finally obtains elasticity
Wear-resisting composite fibre.
Embodiment 3
High melt point thermoplastic polyurethane that mass ratio is 60:40 and polyurethanes is taken to be put into compound after screw extruder
Extrusion obtains compound material, and compound material is sent into spinning manifold, and setting manifold body temperature is 195 DEG C, obtains inner core material；Take with
Compound material mass ratio is the low melting point thermoplastic polyurethane of 65:35, puts it into after screw extruder squeezes out and is sent into spinning manifold,
And it is 160 DEG C that manifold body temperature, which is arranged, obtains surface layer material；Core material and surface layer material are evenly distributed to spinning in obtaining later
In silk cabinet, progress component is compound, is extruded into spun filament；Side-blown air cooling and stretched operation, cross air blasting are carried out to spun filament
Cooling temperature is 20 DEG C, wind speed 0.3m/s, and relative humidity 75%, tensile speed 800m/min finally obtains elasticity
Wear-resisting composite fibre.
Quality testing is carried out to elastic wear-resisting composite fibre made from above embodiments, concrete condition is as shown in the table:
| Breaking strength | Elongation at break | Yarn unevenness CV value | |
| Embodiment 1 | 2.0cN/dtex | 350% | 1.8% |
| Embodiment 2 | 1.82cN/dtex | 380% | 1.85% |
| Embodiment 3 | 1.45cN/dtex | 400% | 1.9% |
By the testing result of above embodiments it is found that can polyurethanes ratio it is different, can be to composite fibre
Elongation at break generate large effect, add it is more, elongation at break is bigger；Meanwhile high melt point thermoplastic polyurethane
Tian Jialiang can also have an impact breaking strength, and addition is fewer, and breaking strength is lower.
It will be evident that a kind of elastic wear-resisting composite fibre provided by the invention, the skin-core structure of formation are with higher
Elasticity, while there is preferable wear-resisting property, solve the potential contraction of existing thermoplastic polyurethane parallel composite fiber
The problem of rate is not high, and higher elastic extension and elastic recovery cannot be obtained after extension.
The description of description above and embodiment is used to explain the present invention protection scope, but does not constitute and protect to the present invention
Protect the restriction of range.Through the invention or the enlightenment of above-described embodiment, those of ordinary skill in the art combine common knowledge, ability
The ordinary technical knowledge and/or the prior art in domain, it is available right by logical analysis, reasoning or limited test
Modification, equivalent replacement or the other improvements of the embodiment of the present invention or in which a part of technical characteristic, should be included in of the invention
Within protection scope.
Claims (9)
1. a kind of elastic wear-resisting composite fibre, which is characterized in that the composite fibre includes surface layer and inner core, the surface layer cladding
In core；The inner core is high melt point thermoplastic polyurethane and polyurethane ester complexes, and the surface layer is low melting point thermoplasticity
Polyurethane.
2. a kind of elastic wear-resisting composite fibre as described in claim 1, which is characterized in that in the composite fibre in core,
The mass ratio of high melt point thermoplastic polyurethane and polyurethanes is 3~9:1.
3. a kind of elastic wear-resisting composite fibre as described in claim 1, which is characterized in that core and table in the composite fibre
The mass ratio of layer is 1~4:1.
4. a kind of elastic wear-resisting composite fibre as described in claim 1, which is characterized in that core is molten in the composite fibre
Point is 150 DEG C~280 DEG C, and the fusing point on surface layer is 95 DEG C~180 DEG C.
5. a kind of preparation method of elastic wear-resisting composite fibre, which comprises the following steps:
Step 1: high melt point thermoplastic polyurethane and polyurethanes are put into compound extruded after screw extruder；
Step 2: high melt point thermoplastic polyurethane and polyurethane ester complexes are sent into spinning manifold, core material in formation；
Step 3: low melting point thermoplastic polyurethane is squeezed out through screw extruder, it is sent into spinning manifold, forms surface layer material；
Step 4: evenly distributing inner core material and surface layer material into spinning manifold, progress component is compound, is extruded into spun filament；
Step 5: spun filament is formed the elastic wear-resisting composite fibre by side-blown air cooling and after stretching.
6. a kind of preparation method of elastic wear-resisting composite fibre as claimed in claim 6, which is characterized in that in step 2,
The intracorporal temperature of manifold is 195 DEG C.
7. a kind of preparation method of elastic wear-resisting composite fibre as claimed in claim 6, which is characterized in that in step 3,
The temperature of spinning manifold is 160 DEG C.
8. a kind of preparation method of elastic wear-resisting composite fibre as claimed in claim 6, which is characterized in that the side-blown cold wind
Cooling temperature is 15~25 DEG C, and wind speed is 0.2m/s~0.45m/s, and relative humidity is 55%~80%.
9. a kind of preparation method of elastic wear-resisting composite fibre as claimed in claim 6, which is characterized in that the speed of the stretching
Degree is 500m/min~1200m/min.
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| CN201910557734.2A CN110257956A (en) | 2019-06-26 | 2019-06-26 | A kind of elastic wear-resisting composite fibre and preparation method thereof |
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| CN201910557734.2A CN110257956A (en) | 2019-06-26 | 2019-06-26 | A kind of elastic wear-resisting composite fibre and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115584570A (en) * | 2022-11-07 | 2023-01-10 | 福建成东新材料科技有限公司 | Thermoplastic polyurethane monofilament for shoe upper and manufacturing method thereof |
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| CN106592016A (en) * | 2016-12-16 | 2017-04-26 | 浙江华峰氨纶股份有限公司 | Preparation method for raveling-resistant polyurethane elastic fiber |
| CN109402777A (en) * | 2018-10-15 | 2019-03-01 | 广东省化学纤维研究所 | A kind of coloured composite fibre long filament of low melting point and preparation method thereof |
| CN109537076A (en) * | 2018-10-26 | 2019-03-29 | 南通华盛高聚物科技股份有限公司 | A kind of elastic composite fiber and its manufacturing method |
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2019
- 2019-06-26 CN CN201910557734.2A patent/CN110257956A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106283406A (en) * | 2016-10-11 | 2017-01-04 | 漳州市鼎鑫电子科技有限公司 | A kind of from fragrance non-weaving cloth and application thereof |
| CN106592016A (en) * | 2016-12-16 | 2017-04-26 | 浙江华峰氨纶股份有限公司 | Preparation method for raveling-resistant polyurethane elastic fiber |
| CN109402777A (en) * | 2018-10-15 | 2019-03-01 | 广东省化学纤维研究所 | A kind of coloured composite fibre long filament of low melting point and preparation method thereof |
| CN109537076A (en) * | 2018-10-26 | 2019-03-29 | 南通华盛高聚物科技股份有限公司 | A kind of elastic composite fiber and its manufacturing method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115584570A (en) * | 2022-11-07 | 2023-01-10 | 福建成东新材料科技有限公司 | Thermoplastic polyurethane monofilament for shoe upper and manufacturing method thereof |
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Application publication date: 20190920 |