CN109402777A - A kind of coloured composite fibre long filament of low melting point and preparation method thereof - Google Patents
A kind of coloured composite fibre long filament of low melting point and preparation method thereof Download PDFInfo
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- CN109402777A CN109402777A CN201811194545.5A CN201811194545A CN109402777A CN 109402777 A CN109402777 A CN 109402777A CN 201811194545 A CN201811194545 A CN 201811194545A CN 109402777 A CN109402777 A CN 109402777A
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- composite fibre
- melting point
- low melting
- polyamide
- long filament
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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
- D01F8/12—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyamide 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
- D01F1/00—General methods for the manufacture of artificial filaments or the like
- D01F1/02—Addition of substances to the spinning solution or to the melt
- D01F1/04—Pigments
-
- 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
Abstract
The invention discloses a kind of coloured composite fibre long filaments of low melting point, including sandwich layer and the cortex being wrapped in outside the sandwich layer, the material of sandwich layer includes polyamide and Masterbatch blend, and the material of cortex is high density polyethylene (HDPE), and the mass ratio of cortex and sandwich layer is 40:60-45:55.The present invention also provides a kind of preparation methods of the coloured composite fibre long filament of low melting point.This composite fibre long filament uses polyethylene for cortex, and the blend of polyamide and Masterbatch is sandwich layer, has product strength height, good stability of the dimension, bonding manufacturing procedure is short and environmentally friendly, the smooth feature of feel；The color that fiber filament is presented by adding Masterbatch in the core solves the problems, such as that polyethylene/polyamide bicomponent filament yarn poststaining is difficult, dyeing effect is bad, has expanded polyethylene/polyamide bicomponent filament yarn fiber in the application in home textile kimonos dress field；The cost of material of polyethylene is low, can reduce production cost by the composite fibre long filament of cortex of polyethylene.
Description
Technical field
The present invention relates to composite fibre technology field more particularly to a kind of coloured composite fibre long filament of low melting point and its preparations
Method.
Background technique
Currently marketed low melting point coloured yarn fiber is mainly in one-components such as spinning low-melting point PET, low melting point PA6
Co-blended spinning is made in a manner of the Masterbatch for adding different colours when fiber, or to one pack system low melting point in subsequent handling
Filament fiber is dyed.Product is extensively in high-grade clothing, household textiles etc..
The coloured long fibre of existing one pack system low-melting point polyester and the coloured long Fypro of low melting point, there are costs of material
High, product feel is not soft enough, not acid-alkali-corrosive-resisting the shortcomings that.
Summary of the invention
It is an object of the invention to propose a kind of coloured composite fibre long filament of low melting point and preparation method thereof, what is obtained is compound
Fiber filament has the characteristics that feel is smooth and at low cost.
To achieve this purpose, the present invention adopts the following technical scheme:
A kind of coloured composite fibre long filament of low melting point, including sandwich layer and the cortex being wrapped in outside sandwich layer, the material packet of sandwich layer
Include polyamide and Masterbatch blend, the material of cortex is high density polyethylene (HDPE), and the mass ratio of cortex and sandwich layer is 40:60-45:
55。
Further, the material composition of Masterbatch includes pigment, dispersing agent and matrix resin, and matrix resin is polyamide.
Further, polyamide is polyurethane 6, and the relative viscosity range after molten polyamide is 2.6-2.75dl/g, is melted
Point is 220-230 DEG C；High density polyethylene (HDPE) melt index is 15-20g/10min, and melting range is 125-135 DEG C.
A kind of preparation method of the coloured composite fibre long filament of low melting point, which comprises the following steps:
(1), high density polyethylene (HDPE) is sliced and is squeezed out through the second screw extruder, into spinning manifold, obtain cortex material；
(2), blended melting after drying Masterbatch and polyamide is squeezed out through the first screw extruder, into spinning
Cabinet obtains core layer material；
(3), the cortex material that step (1) is prepared and the core layer material that step (2) is prepared is uniform through measuring equipment
It is assigned in core-skin type composite component, is extruded into skin-core structure composite fibre spun filament, spun filament is by annealing device, side-blown
Air cooling oils, drawing-off winding, obtains FDY tow, the coloured composite fibre long filament of FDY tow, that is, low melting point.
Further, in step (1), the set temperature of the second screw extruder is 180-245 DEG C, the spinning of manifold
Temperature is 240-245 DEG C.
Further, in step (2), the set temperature of the first screw extruder is 240-260 DEG C, the spinning of manifold
Temperature is 260-265 DEG C.
Further, Masterbatch is 12-16 hours dry at a temperature of 120-130 DEG C；Polyamide is sliced at a temperature of 78-85
13-15 hours dry, the moisture content of the polyamide slice after drying is less than 200ppm；
Masterbatch mass percent in sandwich layer is 0.6-2%.
Further, in step (3), the wind speed of side-blown air cooling is 0.45-0.8m/s, and the temperature of side-blown air cooling is
15-30 DEG C, the relative humidity of side-blown air cooling is 60-90%.
Further, in step (3), the total draft multiple of FDY tow is 2-2.8, passes through the first hot-rolling and the second heat
When producing fully drawn yarn FDY, the first 70-90 DEG C of heat roller temperature, speed 800-1200m/min；Second heat roller temperature 100-120
DEG C, speed 1600-3850m/min；The winding speed 3600-3700m/min of FDY tow.
Further, in step (3), core-skin type composite component includes two groups of independent biphenyl heating systems, metering pumps, spinning
Silk cabinet and core/sheath spinneret；One group of biphenyl is respectively used to cortex material made from core layer material made from step (1) and step (2)
Heating system is heated；Composite fibre spun filament is oiled by oil nozzle and oil tanker.
The invention has the benefit that
1, this composite fibre long filament uses polyethylene for cortex, and the blend of polyamide and Masterbatch is sandwich layer, has and produces
Product intensity height, good stability of the dimension, bonding manufacturing procedure is short and environmentally friendly, the smooth feature of feel；
2, it is compound to solve polyethylene/polyamide for the color that fiber filament is presented by adding Masterbatch in the core
The problem that long filament poststaining is difficult, dyeing effect is bad has expanded polyethylene/polyamide bicomponent filament yarn fiber in home textile kimonos and has filled neck
The application in domain；
3, the cost of material of polyethylene is low, can reduce production cost by the composite fibre long filament of cortex of polyethylene.
Specific embodiment
Technical solution of the present invention is further illustrated With reference to embodiment.
A kind of coloured composite fibre long filament of low melting point, including sandwich layer and the cortex being wrapped in outside sandwich layer, the material packet of sandwich layer
Include polyamide and Masterbatch blend, the material of cortex is high density polyethylene (HDPE), and the mass ratio of cortex and sandwich layer is 40:60-45:
55。
This composite fibre long filament uses polyethylene for cortex, and the blend of polyamide and Masterbatch is sandwich layer, has product
Intensity height, good stability of the dimension, bonding manufacturing procedure is short and environmentally friendly, the smooth feature of feel；By adding color masterbatch in the core
The color of fiber filament is presented in grain, solves polyethylene/polyamide bicomponent filament yarn poststaining is difficult, dyeing effect is bad and asks
Topic has expanded polyethylene/polyamide bicomponent filament yarn fiber in the application in home textile kimonos dress field, and the cost of material of polyethylene is low,
Production cost can be reduced by the composite fibre long filament of cortex of polyethylene.
For composite fibre continuous yarn product in processing, base layer material is in a molten state for bonding, and is easy to fade, by color masterbatch
Grain addition is able to maintain the color of fiber filament, and not fugitive color in the core.
Further, the material composition of Masterbatch includes pigment, dispersing agent and matrix resin, and matrix resin is polyamide.
Using can make Masterbatch and sandwich layer major ingredient polyamide have better matching, the two by the Masterbatch of matrix resin of polyamide
Be close can be uniformly dispersed after melting mixing, crystallization rate of fusing point be close, technology difficulty is effectively reduced.
Further, polyamide is polyurethane 6, and the relative viscosity range after molten polyamide is 2.6-2.75dl/g, is melted
Point is 220-230 DEG C；High density polyethylene (HDPE) melt index is 15-20g/10min, and melting range is 125-135 DEG C.
A kind of preparation method of the coloured composite fibre long filament of low melting point, which comprises the following steps:
(1), high density polyethylene (HDPE) is sliced and is squeezed out through the second screw extruder, into spinning manifold, obtain cortex material；
(2), blended melting after drying Masterbatch and polyamide is squeezed out through the first screw extruder, into spinning
Cabinet obtains core layer material；
(3), the cortex material that step (1) is prepared and the core layer material that step (2) is prepared is uniform through measuring equipment
It is assigned in core-skin type composite component, is extruded into skin-core structure composite fibre spun filament, spun filament is by annealing device, side-blown
Air cooling oils, drawing-off winding, obtains FDY tow, the coloured composite fibre long filament of FDY tow, that is, low melting point.
Further, in step (1), the set temperature of the second screw extruder is 180-245 DEG C, the spinning of manifold
Temperature is 240-245 DEG C.The spinning temperature of the high density polyethylene (HDPE) is higher than 80-110 DEG C of its melting temperature, guarantees to spin Cheng Shun
Benefit.
Further, in step (2), the set temperature of the first screw extruder is 240-260 DEG C, the spinning of manifold
Temperature is 260-265 DEG C.The spinning temperature of the polyamide is higher than 30-40 DEG C of its melting temperature, guarantees that spinning journey goes on smoothly.Color
Master batch affects the drying effect of entire core material after being added, by the higher spinning for limiting high density polyethylene (HDPE) and polyamide
Silk temperature and lesser adjustment space guarantee that spinning journey goes on smoothly.
Further, Masterbatch is 12-16 hours dry at a temperature of 120-130 DEG C；Polyamide is sliced in 78~85 temperature
Lower dry 13-15 hours, the moisture content of the polyamide slice after drying was less than 200ppm；
Masterbatch mass percent in sandwich layer is 0.6-2%.
Drying temperature and the drying time of polyamide slice are improved, so that polyamide slice has lower moisture content, it can be with
Masterbatch has more preferably syncretizing effect.The additive amount of Masterbatch in sandwich layer is related with sandwich layer color.
Further, in step (3), the wind speed of side-blown air cooling is 0.45-0.8m/s, and the temperature of side-blown air cooling is
15-30 DEG C, the relative humidity of side-blown air cooling is 60-90%.
Further, in step (3), the total draft multiple of FDY tow is 2-2.8, passes through the first hot-rolling and the second heat
When producing fully drawn yarn FDY, the first 70-90 DEG C of heat roller temperature, speed 800-1200m/min；Second heat roller temperature 100-120
DEG C, speed 1600-3850m/min；The winding speed 3600-3700m/min of FDY tow.Due to the addition of Masterbatch, sandwich layer material
Material drying effect receives influence, and the quality for guaranteeing fiber filament is made by the range of stretch and coiling speed that limit FDY tow,
Prevent float silk and end phenomenon.
FDY tow winding speed with higher in the present invention, higher coiling speed correspond to lesser total draft multiple,
Post-tensioning expansion force is reduced, breakage phenomena is effectively reduced, there is preferable spinning effect, on the other hand, higher coiling speed has
It is cooling conducive to as-spun fibre.
Further, in step (3), core-skin type composite component includes two groups of independent biphenyl heating systems, metering pumps, spinning
Silk cabinet and core/sheath spinneret；One group of biphenyl is respectively used to cortex material made from core layer material made from step (1) and step (2)
Heating system is heated；Composite fibre spun filament is oiled by oil nozzle and oil tanker.
The present invention is further explained by the following examples.
The mass percent of the core-skin ingredient of the coloured composite fibre long filament of the low melting point of embodiment 1-6 is as shown in the table.
The coloured composite fibre filament structure of the low melting point of embodiment 1-6, material property and preparation method thereof are as follows.
A kind of coloured composite fibre long filament of low melting point, including sandwich layer and the cortex being wrapped in outside sandwich layer, the material packet of sandwich layer
Polyamide and Masterbatch blend are included, the material of cortex is high density polyethylene (HDPE).The material composition of Masterbatch includes pigment, dispersion
Agent and matrix resin, matrix resin are polyamide.Polyamide is polyurethane 6, and the relative viscosity range after polyamide 6 melting is
2.6-2.75dl/g fusing point is 220-230 DEG C；High density polyethylene (HDPE) melt index is 15-20g/10min, and melting range is
125-135℃。
The preparation method of the above-mentioned coloured composite fibre long filament of low melting point, includes the following steps (1)-(3):
(1), high density polyethylene (HDPE) is sliced and is squeezed out through the second screw extruder, and the melt is inputted spinning by logical metering pump
Cabinet obtains cortex material.The set temperature of second screw extruder is 180-245 DEG C, and the spinning temperature control of manifold exists
240-245℃.Five sections of heating zones are equipped with during the melt extruded of second screw extruder, the heating temperature in five sections of areas is successively
Are as follows: 180 DEG C, 230 DEG C, 235 DEG C, 240 DEG C, 245 DEG C.
(2), blended melting after drying Masterbatch and polyamide squeezes out through the first screw extruder, and this is gathered
Amide melt conveying obtains core layer material into spinning manifold.In the first screw extruder to melt between spinning manifold by pre-
Filter removes the large granular impurity in melt.The set temperature of first screw extruder is 240-260 DEG C, manifold
Spinning temperature is controlled at 260-265 DEG C.It is had altogether during the melt extruded of first screw extruder and is equipped with five sections of heating zones, five sections
The heating temperature in area is respectively as follows: 240 DEG C, 250 DEG C, 255 DEG C, 258 DEG C, 260 DEG C.
Masterbatch is 12-16 hours dry at a temperature of 120-130 DEG C；Polyamide slice dry 13-15 at a temperature of 78-85
Hour, the moisture content of the polyamide slice after drying is less than 200ppm；Masterbatch mass percent in sandwich layer is 0.6-2%.
(3), the cortex material that step (1) is prepared and the core layer material that step (2) is prepared is uniform through measuring equipment
It is assigned in core-skin type composite component, is extruded into skin-core structure composite fibre spun filament, spun filament is by annealing device, side-blown
Air cooling oils, drawing-off winding, obtains FDY tow, the coloured composite fibre long filament of FDY tow, that is, low melting point.Side-blown air cooling
Wind speed is 0.45-0.8m/s, and the temperature of side-blown air cooling is 15-30 DEG C, and the relative humidity of side-blown air cooling is 60-90%.FDY
The total draft multiple of tow is 2-2.8, when by the first hot-rolling and the second heat production fully drawn yarn FDY, the first heat roller temperature 70-
90 DEG C, speed 800-1200m/min；Second 100-120 DEG C of heat roller temperature, speed 1600-3850m/min；The winding of FDY tow
Speed 3600-3700m/min.
Core-skin type composite component includes two groups of independent biphenyl heating systems, metering pump, spinning manifold and core-skin type spinneret
Plate；One group of biphenyl heating system is respectively used to heat cortex material made from core layer material made from step (1) and step (2)；
Composite fibre spun filament is oiled by oil nozzle and oil tanker.
The performance parameter for the coloured bicomponent filament yarn fiber of low melting point that above-described embodiment 1-6 is obtained is as shown in the table.
| Example | Fiber number | Breaking strength | Elongation at break | Yarn unevenness CV value |
| Embodiment 1 | 110±5dtex | ≥3.5CN/dtex | 45-55% | < 2% |
| Embodiment 2 | 110±5dtex | ≥3.3CN/dtex | 40-60% | < 2.5% |
| Embodiment 3 | 110±5dtex | ≥3.5CN/dtex | 42-55% | < 2% |
| Embodiment 4 | 110±5dtex | ≥3.4CN/dtex | 40-55% | < 2.1% |
| Embodiment 5 | 110±5dtex | ≥3.4CN/dtex | 43-56% | < 2.2% |
| Embodiment 6 | 110±5dtex | ≥3.3CN/dtex | 44-58% | < 2.4% |
It is long that the coloured composite fibre long filament of low melting point of the invention is different from common one pack system low melting point coloured polyester, polyamide
Silk；Core-sheath filament fiber is made using polyethylene and polyamide, is made in sandwich layer polyamide addition Masterbatch co-blended spinning
Fiber solves the problems, such as to dye difficulty in PE/PA6 following process, has widened PE/PA6 bicomponent filament yarn in high-end textile fabric
Application.It is sliced the spinning of different proportion by polyethylene and polyamide, performance indicator difference, feel, different style can be obtained
Low melting point coloured yarn fiber, meet heat bonding purposes multi-color system fabric.
The technical principle of the invention is described above in combination with a specific embodiment.These descriptions are intended merely to explain of the invention
Principle, and shall not be construed in any way as a limitation of the scope of protection of the invention.Based on the explanation herein, the technology of this field
Personnel can associate with other specific embodiments of the invention without creative labor, these modes are fallen within
Within protection scope of the present invention.
Claims (10)
1. a kind of coloured composite fibre long filament of low melting point, which is characterized in that including sandwich layer and the cortex that is wrapped in outside the sandwich layer,
The material of the sandwich layer includes polyamide and Masterbatch blend, and the material of the cortex is high density polyethylene (HDPE), the cortex
Mass ratio with sandwich layer is 40:60-45:55.
2. the coloured composite fibre long filament of low melting point according to claim 1, which is characterized in that the material of the Masterbatch at
Dividing includes pigment, dispersing agent and matrix resin, and described matrix resin is polyamide.
3. the coloured composite fibre long filament of low melting point according to claim 1, which is characterized in that the polyamide is polyurethane
6, the relative viscosity range after the molten polyamide is 2.6-2.75dl/g, and fusing point is 220-230 DEG C；The high-density polyethylene
Alkene melt index is 15-20g/10min, and melting range is 125-135 DEG C.
4. the preparation method of the coloured composite fibre long filament of low melting point described in claim 1, which comprises the following steps:
(1), high density polyethylene (HDPE) is sliced and is squeezed out through the second screw extruder, into spinning manifold, obtain cortex material；
(2), by Masterbatch and polyamide it is dry after blended melting, squeezed out through the first screw extruder, into spinning manifold,
Obtain core layer material；
(3), the cortex material that step (1) is prepared and the core layer material that step (2) is prepared are evenly distributed through measuring equipment
Into core-skin type composite component, it is extruded into skin-core structure composite fibre spun filament, spun filament is by annealing device, side-blown air-cooled
But, oil, drawing-off winding, obtain FDY tow, the coloured composite fibre long filament of FDY tow, that is, low melting point.
5. the preparation method of the coloured composite fibre long filament of low melting point according to claim 4, which is characterized in that in the step
Suddenly in (1), the set temperature of the second screw extruder is 180-245 DEG C, and the spinning temperature of manifold is 240-245 DEG C.
6. the preparation method of the coloured composite fibre long filament of low melting point according to claim 4, which is characterized in that in the step
Suddenly in (2), the set temperature of the first screw extruder is 240-260 DEG C, and the spinning temperature of manifold is 260-265 DEG C.
7. the preparation method of the coloured composite fibre long filament of low melting point according to claim 4, which is characterized in that the color masterbatch
Grain is 12-16 hours dry at a temperature of 120-130 DEG C；The polyamide slice is 13-15 hours dry at a temperature of 78-85, does
The moisture content of polyamide slice after dry is less than 200ppm；
Masterbatch mass percent in the sandwich layer is 0.6-2%.
8. the preparation method of the coloured composite fibre long filament of low melting point according to claim 4, which is characterized in that in the step
Suddenly in (3), the wind speed of side-blown air cooling is 0.45-0.8m/s, and the temperature of side-blown air cooling is 15-30 DEG C, side-blown air cooling
Relative humidity is 60-90%.
9. the preparation method of the coloured composite fibre long filament of low melting point according to claim 4, which is characterized in that in the step
Suddenly in (3), the total draft multiple of the FDY tow is 2-2.8, when by the first hot-rolling and the second heat production fully drawn yarn FDY,
First 70-90 DEG C of heat roller temperature, speed 800-1200m/min；Second 100-120 DEG C of heat roller temperature, speed 1600-3850m/
min；The winding speed 3600-3700m/min of the FDY tow.
10. the preparation method of the coloured composite fibre long filament of low melting point according to claim 4, which is characterized in that the step
Suddenly in (3), core-skin type composite component includes two groups of independent biphenyl heating systems, metering pump, spinning manifold and core-skin type spinneret
Plate；One group of biphenyl heating system is respectively used to heat cortex material made from core layer material made from step (1) and step (2)；
The composite fibre spun filament is oiled by oil nozzle and oil tanker.
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| CN110257956A (en) * | 2019-06-26 | 2019-09-20 | 安踏（中国）有限公司 | A kind of elastic wear-resisting composite fibre and preparation method thereof |
| CN110629319A (en) * | 2019-09-18 | 2019-12-31 | 苏州宝丽迪材料科技股份有限公司 | Skin-core structure photochromic polyester fiber |
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| CN113897704A (en) * | 2021-10-13 | 2022-01-07 | 无锡金通高纤股份有限公司 | Polyethylene sheath-core composite colorful fiber, preparation method and application |
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Application publication date: 20190301 |