CN108842201A - Log composite short fiber, preparation method and spinning system - Google Patents
Log composite short fiber, preparation method and spinning system Download PDFInfo
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- CN108842201A CN108842201A CN201811010335.6A CN201811010335A CN108842201A CN 108842201 A CN108842201 A CN 108842201A CN 201811010335 A CN201811010335 A CN 201811010335A CN 108842201 A CN108842201 A CN 108842201A
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- melt
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- short fiber
- master batch
- composite short
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Classifications
-
- 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
- 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
- D01D10/06—Washing or drying
-
- 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
- D01D13/00—Complete machines for producing artificial threads
-
- 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
- D01F1/10—Other agents for modifying properties
-
- 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
- D01F8/12—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
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Multicomponent Fibers (AREA)
Abstract
The invention discloses a kind of log composite short fiber, including cortex and sandwich layer, the cortex is HDPE, and the sandwich layer is that the modified PET of PA6 is combined with master batch, and the master batch carrier is solid color polyester, the carbon amounts containing master batch weight 2% in master batch.And disclose preparation method and its spinning system.The present invention is modified to PET using PA6, and water absorbing properties can be improved；The master batch containing carbon black is added first is that mainly adjusting color, makes fiber that there is the color sensation of log, second is that further increasing the water absorbing properties of fiber, log composite short fiber obtained can enable liquid rapid osmotic and effectively prevent to bleed back, and keep surface layer dry and comfortable.
Description
Technical field
The present invention relates to a kind of log composite short fiber, preparation method and spinning systems.
Background technique
The dilatation of domestic disposable sanitary articles market, permeability are constantly promoted:1) China's paper nappy (diaper, paper diaper)
Market continues dilatation.It is shown according to related data：Nearly 3 years CAGR have maintained year up to market penetration rate since 11.8%, 2015 year
8% year compound increasing degree, arrive the year two thousand twenty bottom, China market permeability will increase to 65% or more.Compare developed countries 80%
Permeability, market scale still has larger growing space.2) women sanitary articles fabric upgrades to high-endization.China defends within 2016
Raw towel market scale is 12,000,000,000 dollars, mature.Sanitary napkin surface layer fabric repeatedly upgrades, and sends out to high-endization, comfort trend
Exhibition.
Disposable sanitary articles are primarily referred to as paper diaper and sanitary napkin, constructively, can be divided into surface layer, guide layer, absorption
Core, bottom and coating layer.With the continuous promotion of living standard, various demands have new variation and want in people's life
It asks, especially infant's hygienic material, does not require nothing more than permeability height, more require the healthy comfortable characteristic of green.Data is aobvious
Show：China's paper nappy (paper diaper, diaper) occupation rate of market P&G, Kimberley, flower king, tetra- David material giant of You Nijia account for point
It is not 25%, 12.7%, 11.5% and 8.9%, amounts to 58.1%, the Wei Cai enterprise perseverance of largest domestic pacifies the 5th, and market accounts for
There is rate 6%.Quality dog-eat-dog between production firm at present, and develop many new products, especially with user's skin
The surface material directly contacted, supply access threshold is high, and market barrier is higher, and it is stringent that surface layer fabric standard is selected by Wei Cai enterprise.
Summary of the invention
Technical problem：The present invention provides a kind of log composite short fibers, have good permeability and effectively prevent back
It seeps.
Technical solution：Technical scheme is as follows：
A kind of log composite short fiber, including cortex and sandwich layer, the cortex are HDPE, and the sandwich layer is PA6 modified
PET is combined with master batch, and the master batch carrier is solid color polyester, and the carbon black of master batch weight 2% is added in master batch.
Preferably, the HDPE melt index 17-21g/10min, 128-134 DEG C of fusing point.
Preferably, core/sheath ratio 45:55, the PET account for the 80.45% of core layer component, and viscosity 0.62dl/g melts
256 DEG C of point；The PA6, accounts for the 15% of core layer component, molecular weight 14000, and 215-225 DEG C of fusing point；The master batch accounts for core layer component
4.55%, the carbon added in master batch makes carbon content 500PPM in staple fiber.The preparation method of solid color polyester refering to
CN103113564A。
The invention also discloses the preparation method of above-mentioned log composite short fiber, step includes：
1) HDPE is melt into melt into the first extruder through the first feed bin, and spinning manifold is entered after measuring pump-metered；
2) enter the second feed bin after PET and master batch are mixed, dried, be mixed into and measured in the second extruding machine inlet
PA6, while it being melt into melt into the second extruder, spinning manifold is entered after melt-stoichiometry pump-metered；
3) melt is cooled and solidified through blower system, is oiled after core-skin composite spinneret extrusion, is wound, and is then stretched, is rolled up
It is formed after song, is cut into log composite short fiber.
Preferably, the first extruder melting zone maximum temperature is 270 DEG C, and HDPE enters the melt temperature of spinning manifold
Degree control is at 250 DEG C -260 DEG C.
Preferably, the PA6 is vacuum packaging, and water content is less than 200PPM, nitrogen protection during feeding intake.
Preferably, investment turns pot and enters drying simultaneously in proportion for the PET and master batch, and drying time is 16 hours/strand, is turned
Pot initial temperature control rises 5 DEG C per hour later, is raised to 150 DEG C of heat preservations at 105 DEG C, and discharging investment feed bin, starts after 2 hours
The process for being dried to discharging is in vacuum environment, turns pot temperature and rises to 110 DEG C and the above vacuum degree not less than -0.1Mpa.
Preferably, the second extruder melting feed zone temperature control is no more than 235 DEG C, and highest melting zone temperature is no more than
290 DEG C, spinning body temperature is no more than 295 DEG C.
Preferably, the core-sheath the hole diameter of spinneret 0.6mm, the long 4.8mm in hole, spinning speed be 1000 meters, oil to
Wet is 16%, and rear spin is stretched as 4.8 times, 160 ms/min of tensile speed, 115 DEG C of draft temperature.
The invention also discloses a kind of log composite short fiber spinning systems, including drying nest, extrusion molten part, spinning
Silk and finishing part；
The drying nest includes turning pot, steam pipe, powder separator, and described turn of pot is equipped with feed opening and discharge port, institute
Steam pipe is stated to pot heat supply is turned, further includes that pumped vacuum systems is connect with powder separator, is turned in pot by powder separator extraction
The moisture content evaporated when raw material drying；
The extrusion molten part includes the first feed bin, the second feed bin, supplement hopper, addition metering device, the first extruding
Machine, the second extruder, the discharge port of described turn of pot are connected to the second feed bin, and second feed bin is connect with the second extruder, institute
It states supplement hopper and is connected on the second extruder by adding metering device, first feed bin is connect with the first extruder；
The spinning and finishing part include that metering pump, melt metering pump, melt distribution systems, spinning manifold, core-skin are multiple
Close spinneret, blower system, oil feeding system, up- coiler, stretching-machine, curling, forming machine, disconnecting device, the metering pump, melt
Metering pump, melt distribution systems, core-sheath spinneret are respectively positioned in spinning manifold, pass through metering pump in first extruder
It is connected to spinning manifold, second extruder is connected to spinning manifold by melt metering pump, and the first extruder and second squeeze
Melt in press is emitted into silk after melt distribution systems are distributed, through core-skin composite spinneret, silk thread respectively through oil feeding system,
Up- coiler, stretching-machine, curling, forming machine, disconnecting device processing.
Beneficial effect：The present invention is modified to PET using PA6, and water absorbing properties can be improved；Add the master batch containing carbon black first is that
Color is mainly adjusted, makes fiber that there is the color sensation of log, second is that further increasing the water absorbing properties of fiber, log obtained is multiple
Liquid rapid osmotic can be enable and effectively prevent to bleed back by closing staple fiber, keep surface layer dry and comfortable.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of log composite short fiber spinning system.
Specific embodiment
Embodiment 1
A kind of preparation method of log composite short fiber, step include：
1) HDPE is melt into melt into the first extruder through feed bin, and spinning manifold is entered after measuring pump-metered, described
HDPE melt index 17-21g/10min, 128-134 DEG C of fusing point；The first extruder melting zone maximum temperature is 270 DEG C,
The melt temperature that HDPE enters spinning manifold is controlled at 250 DEG C -260 DEG C；
2) enter feed bin after PET and master batch are mixed, dried, be mixed into the PA6 through measuring in the second extruding machine inlet,
Enter the second extruder simultaneously and be melt into melt, spinning manifold is entered after melt-stoichiometry pump-metered, by core/sheath ratio 45:55 match
Setting raw material, PET accounts for the 80.45% of core layer component, viscosity 0.62dl/g, and 256 DEG C of fusing point；PA6 accounts for the 15% of core layer component, point
Son amount 14000,215-225 DEG C of fusing point；Master batch accounts for the 4.55% of core layer component, and master batch carrier is solid color polyester, adds in master batch
Added with the carbon amounts of master batch weight 2%, so that carbon content is 500PPM in staple fiber；The PA6 is vacuum packaging, and water content is less than
200PPM, nitrogen protection during feeding intake；Investment turns pot and enters drying simultaneously in proportion for the PET and master batch, and drying time is
16 hours/strand turn the control of pot initial temperature at 105 DEG C, rise 5 DEG C per hour later, be raised to 150 DEG C of heat preservations, discharge after 2 hours
Feed bin is put into, the process for starting to be dried to discharging is in vacuum environment, turns that pot temperature rises to 110 DEG C and the above vacuum degree is not low
In -0.1Mpa；Second extruder melts the control of feed zone temperature and is no more than 235 DEG C, and highest melting zone temperature is no more than 290 DEG C,
Spinning body temperature is no more than 295 DEG C；
3) melt cools and solidifies after core-skin composite spinneret extrusion through blower system, and winding oils, and then stretches, rolls up
It is formed after song, is cut into log composite short fiber, the core-sheath the hole diameter of spinneret 0.6mm, the long 4.8mm in hole, spinning speed
It is 1000 meters, the dewing that oils is 16%, and rear spin is stretched as 4.8 times, 160 ms/min of tensile speed, 115 DEG C of draft temperature.It is obtained
Log composite short fiber fiber number is 2.32dtex, strength 2.9CN/dtex, elongation 89%.After being produced into non-woven fabrics, it can be used for defending
Green material surface layer.
20g/m is made through combing in fiber2Cotton net, handle (140 DEG C * 10 seconds) through hot wind and non-woven fabrics be made, using same
Two blocks of non-woven fabrics of size carry out hydrophily test using Lister AC moisture penetration instrument, and the results are shown in Table 1.
Table 1
Embodiment 2
As shown in Figure 1, this log composite short fiber spinning system, including drying nest, extrusion molten part, spinning and whole
Manage part；
The drying nest includes turning pot 1, steam pipe 2, powder separator 3, and described turn of pot is equipped with feed opening 4 and discharging
Mouthful, discharge port is connect with powder separator 3, and the steam pipe further includes that pumped vacuum systems 5 is separated with powder to 1 heat supply of pot is turned
Device 3 connects, the moisture content evaporated when extracting by powder separator 3 and turn raw material drying in pot 1, turns pot and is supported by bracket 19；
The extrusion molten part includes the first feed bin 6, the second feed bin 7, supplement hopper 8, addition metering device 9, first
Extruder 10, the second extruder 11, the discharge port of described turn of pot are connected to the second feed bin 7, and second feed bin 7 and second squeezes
Machine 11 connects, and the supplement hopper 8 is connected on the second extruder 11 by addition metering device 9, first feed bin 6 and the
The connection of one extruder 10；
The spinning and finishing part include metering pump, melt metering pump, melt distribution systems, spinning manifold 12, core-skin
Composite spinneret, blower system, oil feeding system 13, up- coiler 14, stretching-machine 15, curling, forming machine 16, disconnecting device 17, institute
It states metering pump, melt metering pump, melt distribution systems, core-sheath spinneret to be respectively positioned in spinning manifold, described first squeezes
Spinning manifold is connected to by metering pump in machine 10, second extruder is connected to spinning manifold by melt metering pump, the
Melt in one extruder and the second extruder is emitted into silk, silk after melt distribution systems are distributed, through core-skin composite spinneret
Line 18 is respectively through oil feeding system 13, up- coiler 14, stretching-machine 15, curling, forming machine 16, the processing of disconnecting device 17.
Turn pot in use, entering after PET and master batch metering mixing by feed opening, steam pipe is to turn pot heating, dry
The moisture content evaporated when pumped vacuum systems extracts by powder separator and turns raw material drying in pot in the process, from out after the completion of drying
Material mouth enters the second feed bin, subsequently into the second extruder, PA6 added metering device metering from supplement hopper it is latter with into
Enter the second extruder；Skin component HDPE enters the first extruder through the first feed bin, and two kinds of melts are respectively through metering pump and melt meter
Enter spinning manifold after measuring pump-metered, core-sheath spinneret is entered after melt distribution systems are distributed and is emitted into silk, silk thread point
It is log composite short fiber not after oil feeding system, up- coiler, stretching-machine, curling, shaping machine, disconnecting device processing.Metering
Pump, melt metering pump, melt distribution systems, blower system are set in spinning manifold or spinning manifold periphery, and sets to be conventional
It is standby, it is not shown in the figure.
Claims (10)
1. a kind of log composite short fiber, including cortex and sandwich layer, the cortex is HDPE, and the sandwich layer is the modified PET of PA6
It is combined with master batch, the master batch carrier is solid color polyester, the carbon black containing master batch weight 2% in master batch.
2. log composite short fiber according to claim 1, it is characterised in that：The HDPE melt index 17-21g/
10min, 128-134 DEG C of fusing point.
3. log composite short fiber according to claim 2, it is characterised in that：Core/sheath ratio is 45:55, the PET is accounted for
The 80.45% of core layer component, viscosity 0.62dl/g, 256 DEG C of fusing point；The PA6 accounts for the 15% of core layer component, molecular weight
14000,215-225 DEG C of fusing point；The master batch accounts for the 4.55% of core layer component.
4. the preparation method of log composite short fiber described in claim 1,2 or 3, step include：
1）HDPE enters the first extruder through the first feed bin and is melt into melt, and spinning manifold is entered after measuring pump-metered；
2）PET and master batch enter the second feed bin after being mixed, being dried, and are mixed into the PA6 through measuring in the second extruding machine inlet,
Enter the second extruder simultaneously and be melt into melt, spinning manifold is entered after melt-stoichiometry pump-metered；
3）Melt is cooled and solidified through blower system, is oiled after core-skin composite spinneret extrusion, is wound, after then stretching, crimping
It is formed, is cut into log composite short fiber.
5. the preparation method of log composite short fiber according to claim 4, it is characterised in that：First extruder is molten
Maximum temperature is 270 DEG C between tabetisol, and the melt temperature that HDPE enters spinning manifold is controlled at 250 DEG C -260 DEG C.
6. the preparation method of log composite short fiber according to claim 5, it is characterised in that：The PA6 is vacuum packet
Dress, water content are less than 200PPM, nitrogen protection during feeding intake.
7. the preparation method of log composite short fiber according to claim 6, it is characterised in that：The PET and master batch are pressed
Ratio while investment turn pot and enter drying, and drying time is 16 hours/strand, turn pot initial temperature and control at 105 DEG C, later every small
When rise 5 DEG C, be raised to 150 DEG C of heat preservations, discharging investment feed bin after 2 hours, the process for starting to be dried to discharging is in vacuum environment, turn
Pot temperature rises to 110 DEG C and the above vacuum degree is not less than -0.1Mpa.
8. the preparation method of log composite short fiber according to claim 7, it is characterised in that：Second extruder melt into
Expect that temperature control in area's is no more than 235 DEG C, highest melting zone temperature is no more than 290 DEG C, and spinning body temperature is no more than 295 DEG C.
9. the preparation method of log composite short fiber according to claim 8, it is characterised in that：The core-sheath spinneret
Panel aperture 0.6mm, the long 4.8mm in hole, spinning speed are 1000 ms/min, and the dewing that oils is 16%, and rear spin is stretched as 4.8 times, are drawn
Stretch 160 ms/min of speed, 115 DEG C of draft temperature.
10. a kind of log composite short fiber spinning system, including drying nest, extrusion molten part, spinning and finishing part；
The drying nest includes turning pot, steam pipe, powder separator, and described turn of pot is equipped with feed opening and discharge port, the steaming
Steam pipe further includes that pumped vacuum systems is connect with powder separator to pot heat supply is turned, and turns raw material in pot by powder separator extraction
The moisture content evaporated when dry；
The extrusion molten part includes the first feed bin, the second feed bin, supplement hopper, addition metering device, the first extruder, the
Two extruders, the discharge port of described turn of pot are connected to the second feed bin, and second feed bin is connect with the second extruder, the supplement
Hopper is connected on the second extruder by adding metering device, and first feed bin is connect with the first extruder；
The spinning and finishing part include metering pump, melt metering pump, melt distribution systems, spinning manifold, core-sheath spray
Filament plate, blower system, oil feeding system, up- coiler, stretching-machine, curling, forming machine, disconnecting device, the metering pump, melt-stoichiometry
Pump, melt distribution systems, core-sheath spinneret are respectively positioned in spinning manifold, are connected in first extruder by metering pump
To spinning manifold, second extruder is connected to spinning manifold, the first extruder and the second extruder by melt metering pump
Interior melt is emitted into silk after melt distribution systems are distributed, through core-skin composite spinneret, and silk thread is respectively through oil feeding system, winding
Machine, stretching-machine, curling, forming machine, disconnecting device processing.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811010335.6A CN108842201A (en) | 2018-08-31 | 2018-08-31 | Log composite short fiber, preparation method and spinning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811010335.6A CN108842201A (en) | 2018-08-31 | 2018-08-31 | Log composite short fiber, preparation method and spinning system |
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| CN201811010335.6A Pending CN108842201A (en) | 2018-08-31 | 2018-08-31 | Log composite short fiber, preparation method and spinning system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110946697A (en) * | 2019-11-26 | 2020-04-03 | 福建恒安集团有限公司 | Preparation method of sanitary product with honeycomb type strong adsorption fibers |
| CN114214743A (en) * | 2021-12-17 | 2022-03-22 | 江苏江南高纤股份有限公司 | Preparation method of ultralow denier composite short fiber |
| CN114214740A (en) * | 2021-12-17 | 2022-03-22 | 江苏江南高纤股份有限公司 | Preparation method of composite short fiber with high flexibility and low fuzzing performance |
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| CN110946697A (en) * | 2019-11-26 | 2020-04-03 | 福建恒安集团有限公司 | Preparation method of sanitary product with honeycomb type strong adsorption fibers |
| CN114214743A (en) * | 2021-12-17 | 2022-03-22 | 江苏江南高纤股份有限公司 | Preparation method of ultralow denier composite short fiber |
| CN114214740A (en) * | 2021-12-17 | 2022-03-22 | 江苏江南高纤股份有限公司 | Preparation method of composite short fiber with high flexibility and low fuzzing performance |
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