CN105463588B - Bamboo charcoal polylactic acid melt direct spinning - Google Patents
Bamboo charcoal polylactic acid melt direct spinning Download PDFInfo
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- CN105463588B CN105463588B CN201610014587.0A CN201610014587A CN105463588B CN 105463588 B CN105463588 B CN 105463588B CN 201610014587 A CN201610014587 A CN 201610014587A CN 105463588 B CN105463588 B CN 105463588B
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- charcoal
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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
- D01D1/00—Treatment of filament-forming or like material
- D01D1/06—Feeding liquid to the spinning head
- D01D1/065—Addition and mixing of substances to the spinning solution or to the melt; Homogenising
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G69/00—Macromolecular compounds obtained by reactions forming a carboxylic amide link in the main chain of the macromolecule
- C08G69/02—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids
- C08G69/08—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids derived from amino-carboxylic acids
- C08G69/14—Lactams
- C08G69/16—Preparatory processes
-
- 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
- D01D5/08—Melt spinning methods
-
- 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
- D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
- D01F6/88—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds
- D01F6/92—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds of polyesters
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Mechanical Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Biological Depolymerization Polymers (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
Abstract
Bamboo charcoal polylactic acid melt direct spinning, comprises the following steps:（1）, lactide and bamboo perfume (or spice) charcoal micro mist be added in agitator tank and be stirred operation；（2）, lactide and bamboo perfume (or spice) charcoal micro mist mixture dropped into through the first pipeline preliminary polymerization operation just carried out in poly- tank；（3）, PLA bamboo charcoal melt drops into through second pipe and carries out final polymerization operation in poly- tank eventually；（4）, open the 3rd valve of poly- pot bottom eventually, PLA bamboo charcoal melt is extracted out and is transported in spinning manifold by the 3rd measuring pump；（5）, spinning pump and filament spinning component are provided with spinning manifold, spinning pump will enter filament spinning component after the supercharging of PLA bamboo charcoal melt-stoichiometry, and be spun into bamboo charcoal acid fiber by polylactic.The present invention is modified using nanoscale bamboo perfume (or spice) micropowder to PLA, makes its manufactured fiber initial modulus reduction, and regain rises, and wearability improves, and the gas permeability and feel of fiber have significantly to improvement.
Description
Technical field
The invention belongs to acid fiber by polylactic production technical field, and in particular to a kind of bamboo charcoal polylactic acid melt direct fabrics work
Skill.
Background technology
PLA（PLA）Fiber is the fermented generation breast using the amyloid agricultural product such as corn, wheat, beet as raw material
After acid, then it is made through polycondensation and melt spinning, acid fiber by polylactic raw material sources are extensive.It makees in soil or seawater through microorganism
With can be analyzed to carbon dioxide and water, during burning, poison gas will not be distributed, will not be polluted, is a kind of life of sustainable development
State fiber.Its fabric feel, drapability are good, uvioresistant, have relatively low flammable and excellent processing characteristics, are applicable
In various fashionable dresses, easy dress, sports goods and amenities etc., have broad application prospects.
PLA（PLA）Fiber has many advantages, such as antibacterial, smooth, quick-drying, but it wears no resistance, and moisture regain is relatively low, uses
Its more other chemical fibre textile fabric feel of weaving face fabric produced is substantially hardened, and has a strong impact on using effect.Further, since
The conveyance conduit of PLA is longer, and the high polymer molten viscosity close to tube wall is especially big, and polylactic acid melt is in course of conveying
The molecular weight of high polymer wider distribution caused by melt flow is uneven（It is uneven）Problem, so as to have influence on spinning quality.
The content of the invention
The present invention is in order to solve weak point of the prior art, there is provided it is a kind of it is simple in construction, automaticity is high, conveying
During mixture homogeneity is high, the acid fiber by polylactic wearability produced is strong, regain is high bamboo charcoal polylactic acid melt it is direct
Spinning technique.
In order to solve the above technical problems, the present invention adopts the following technical scheme that：Bamboo charcoal polylactic acid melt direct spinning,
Comprise the following steps:
（1）, lactide and bamboo perfume (or spice) charcoal micro mist be added in agitator tank and be stirred operation, the wherein weight of bamboo perfume (or spice) charcoal micro mist
0.5~15% of the gross weight for lactide and bamboo perfume (or spice) charcoal micro mist is measured, stirs 20~40min, until well mixed；
（2）, open the first valve of stirring pot bottom, by the first measuring pump by the mixing of lactide and bamboo perfume (or spice) charcoal micro mist
Thing drops into through the first pipeline and preliminary polymerization operation is just carried out in poly- tank, and preliminary polymerization operation is that temperature is 100~150 DEG C, just
The time of step polymerization operation is 1~2h, pressure 0.2MPa, after preliminary polymerization operation, the mixing of lactide and bamboo perfume (or spice) charcoal micro mist
Thing is aggregated into as sticky PLA bamboo charcoal melt；
（3）, open just poly- pot bottom the second valve, by the second measuring pump by PLA bamboo charcoal melt through second pipe
The final polymerization operation of the interior progress of poly- tank eventually is dropped into, final polymerization operation is that temperature is 150~280 DEG C, finally polymerize operation
Time is 1~6h, pressure 0.3MPa；
（4）, open the 3rd valve of poly- pot bottom eventually, the PLA bamboo charcoal melt in poly- tank is discharged through the 3rd pipeline eventually,
3rd pipeline is provided with duct type dynamic mixture device and the 3rd measuring pump, the 3rd measuring pump by PLA bamboo charcoal melt-stoichiometry simultaneously
It is transported in spinning manifold；
（5）, be provided with spinning pump and filament spinning component in spinning manifold, spinning pump is by PLA bamboo charcoal melt meter
Filament spinning component is entered after amount supercharging, PLA bamboo charcoal melt is spun into bamboo charcoal acid fiber by polylactic by filament spinning component.
The weight of bamboo perfume (or spice) charcoal micro mist is the 10% of the gross weight of lactide and bamboo perfume (or spice) charcoal micro mist in step (1).
Duct type dynamic mixture device includes left fixed -piping, dynamic mixture pipeline and right fixed -piping, dynamic mixture pipe
The left part and right part in road are connected with the right-hand member of left fixed -piping and the left end flange of right fixed -piping respectively, dynamic mixture pipe
Dynamic screw dividing plate is provided with road, axially inside direction is separated into the first semicircle spiral shell to dynamic screw dividing plate by dynamic mixture pipeline
Passage and the second semicircle helical duct are revolved, dynamic screw dividing plate coordinates with dynamic mixture inner-walls of duct gap；
Plane where the both ends of dynamic screw dividing plate is each perpendicular to the central axis of dynamic mixture pipeline, dynamic screw
Dividing plate right part center is provided with dynamic cone tank, and it is top that dynamic screw dividing plate left part center is provided with dynamic；
Right support is provided with right fixed -piping, right support is provided with right stationary center, and right stationary center left end withstands on dynamic
In cone tank；Left socle is provided with left fixed -piping, fixed cone tank is provided with the right side of left socle, the top left end of dynamic withstands on fixation
In cone tank.
The quantity of the dynamic mixture pipeline is more than or equal to two sections, and flange connects between adjacent two sections of dynamic mixture pipelines,
The top left end of dynamic of one section of dynamic mixture pipeline is withstood in the dynamic cone tank of one section of adjacent dynamic mixture pipeline.
The length of left fixed -piping and/or right fixed -piping is less than the length of dynamic mixture pipeline.
Step（4）Middle detailed process of the PLA bamboo charcoal melt through the 3rd pipeline be：PLA bamboo charcoal melt after polymerization
Entered by left fixed -piping, sticky PLA bamboo charcoal melt under high pressure by dynamic mixture pipeline when, dynamic screw
Dividing plate starts to rotate under the promotion of melt, the dynamic screw dividing plate that the viscous melt on the inwall of dynamic mixture pipeline is rotated
Scrape, it is diluter that melt mixes among the viscous melt and dynamic mixture pipeline scraped, by some groups of dynamic mixtures
After pipeline, uniform polylactic acid melt is discharged by right fixed -piping by the 3rd measuring pump.
Using above-mentioned technical proposal, duct type dynamic mixture device is set on the 3rd pipeline, had the advantages that：
Due to the first semicircle helical duct and the second semicircle helical duct it is longer and in the axial direction for the hand of spiral set, so
Will pressurized melt by when, driving dynamic screw dividing plate rotation；The rotary material of dynamic screw dividing plate is top and cone tank
The form that top pressure coordinates, is not only easy to manufacture and assembles, and frictional force is smaller in rotary course, so as to improve dynamic screw
The efficiency of dividing plate scraper.The length of left fixed -piping and/or right fixed -piping is less than the length of dynamic mixture pipeline, can so make
Most of length of the pipeline of whole conveying PLA can all wipe the king-sized PLA of the viscosity adhered on tube wall off, fill
Divide the uniformity for improving mixing.
In summary, the present invention is reasonable in design, simple in construction, and some groups of batch mixing lists are directly set in melt conveying pipeline
Member, eliminate and mixing system is installed on conveyance conduit, saved cost, it is uniform when flowing through conveyance conduit to reach melt
The purpose of batch mixing, conveying and batch mixing efficiency greatly improve.To be improved acid fiber by polylactic partial function and index, in poly- breast
0.5%~15% is added in sour material（It is preferred that 10%）Nanoscale bamboo perfume (or spice) micropowder, it is modified, made fine made of its
Initial modulus reduction is tieed up, regain rises, and wearability improves, and the gas permeability and feel of fiber have significantly to improvement.
Brief description of the drawings
Fig. 1 is the process chart of the present invention；
Fig. 2 is the structural representation of the duct type dynamic mixture device in Fig. 1 with one group of batch mixing unit；
Fig. 3 is the dimensional structure diagram of dynamic screw dividing plate in Fig. 1.
Embodiment
As shown in Figure 1, Figure 2 and Figure 3, bamboo charcoal polylactic acid melt direct spinning of the invention, comprises the following steps:
（1）, lactide and bamboo perfume (or spice) charcoal micro mist be added in agitator tank 13 and be stirred operation, wherein bamboo perfume (or spice) charcoal micro mist
Weight is the 0.5~15% of the gross weight of lactide and bamboo perfume (or spice) charcoal micro mist, stirs 20~40min, until well mixed；
（2）, open the first valve 14 of agitator tank 13 bottom, by the first measuring pump by lactide and bamboo perfume (or spice) charcoal micro mist
Mixture drops into through the first pipeline 15 just carries out preliminary polymerization operation in poly- tank 16, preliminary polymerization operation be temperature be 100~
150 DEG C, the time of preliminary polymerization operation is 1~2h, pressure 0.2MPa, and after preliminary polymerization operation, lactide and bamboo perfume (or spice) charcoal are micro-
The mixture of powder is aggregated into as sticky PLA bamboo charcoal melt；
（3）, open just the poly- bottom of tank 16 the second valve 17, by the second measuring pump by PLA bamboo charcoal melt through second
Pipeline 18 drops into the final polymerization operation of the interior progress of poly- tank 19 eventually, and final polymerization operation is that temperature is 150~280 DEG C, finally poly-
The time of cooperation industry is 1~6h, pressure 0.3MPa；
（4）, open the 3rd valve 20 of the poly- bottom of tank 19 eventually, the PLA bamboo charcoal melt in poly- tank 19 is through the 3rd pipeline eventually
21 discharges, the 3rd pipeline 21 are provided with duct type dynamic mixture device 22 and the 3rd measuring pump 23, and the 3rd measuring pump 23 is by poly- breast
Sour bamboo charcoal melt-stoichiometry is simultaneously transported in spinning manifold 24；
（5）, be provided with spinning pump 25 and filament spinning component 26 in spinning manifold 24, spinning pump 24 is by PLA bamboo
Filament spinning component 26 is entered after the supercharging of charcoal melt-stoichiometry, PLA bamboo charcoal melt is spun into bamboo charcoal PLA fibre by filament spinning component 26
Dimension.
The weight of bamboo perfume (or spice) charcoal micro mist is the 10% of the gross weight of lactide and bamboo perfume (or spice) charcoal micro mist in step (1).
Duct type dynamic mixture device 22 includes left fixed -piping 1, dynamic mixture pipeline 2 and right fixed -piping 3, and dynamic is mixed
The left part and right part of pipe material 2 are connected with the right-hand member of left fixed -piping 1 and the left end flange of right fixed -piping 3 respectively, are moved
Dynamic screw dividing plate 4 is provided with state batch mixing pipeline 2, axially inside direction separates dynamic screw dividing plate 4 by dynamic mixture pipeline 2
Into the first semicircle helical duct 5 and the second semicircle helical duct 6, dynamic screw dividing plate 4 is matched somebody with somebody with the inwall gap of dynamic mixture pipeline 2
Close.
Plane where the both ends of dynamic screw dividing plate 4 is each perpendicular to the central axis of dynamic mixture pipeline 2, dynamic spiral shell
Rotation dividing plate 4 right part center is provided with dynamic cone tank 7, and the left part center of dynamic screw dividing plate 4 is provided with dynamic top 8.
Right support 9 is provided with right fixed -piping 3, right support 9 is provided with right stationary center 10, the right left end top of stationary center 10
In dynamic cone tank 7；Left socle 11 is provided with left fixed -piping 1, the right side of left socle 11 is provided with fixed cone tank 12, and dynamic is pushed up
Sharp 8 left ends are withstood in fixed cone tank 12.
The quantity of dynamic mixture pipeline 2 is more than or equal to two sections, and flange connects between adjacent two sections of dynamic mixture pipelines 2, and one
Top 8 left end of dynamic of section dynamic mixture pipeline 2 is withstood in the dynamic cone tank 7 of one section of adjacent dynamic mixture pipeline 2.
Step（4）Middle detailed process of the PLA bamboo charcoal melt through the 3rd pipeline 21 be：PLA bamboo charcoal after polymerization melts
Body is entered by left fixed -piping 1, when sticky melt under high pressure by dynamic mixture pipeline 2 when, dynamic screw dividing plate 4
Start to rotate under the promotion of melt, the dynamic screw dividing plate 4 that the viscous melt on the inwall of dynamic mixture pipeline 2 is rotated is scraped
Under, the diluter melt that obtains among viscous melt and dynamic mixture pipeline 2 scraped mixes, by some groups of dynamic mixture pipes
Behind road 2, uniform polylactic acid melt enters the 3rd measuring pump 23 by right fixed -piping 3.
Because the first semicircle helical duct 5 and the second semicircle helical duct 6 are longer and be spiral side in the axial direction
To setting, thus can pressurized melt by when, driving dynamic screw dividing plate 4 rotates；The rotary material of dynamic screw dividing plate 4
The top form coordinated with cone tank top pressure, is not only easy to manufacture and assembles, and frictional force is smaller in rotary course, so as to
Improve the efficiency of the scraper of dynamic screw dividing plate 4.The length of left fixed -piping 1 and/or right fixed -piping 3 is less than dynamic mixture pipeline
2 length, it can so make most of length of the pipeline of whole conveying PLA all can be special by the viscosity adhered on tube wall
Big PLA is wiped off, fully improves the uniformity of mixing.
Above example is only to illustrative and not limiting technical scheme, although with reference to above-described embodiment to this hair
It is bright to be described in detail, it will be understood by those within the art that：Still the present invention can be modified or be waited
With replacing, any modification or partial replacement without departing from the spirit and scope of the present invention, it all should cover the power in the present invention
Among sharp claimed range.
Claims (5)
1. bamboo charcoal polylactic acid melt direct spinning, it is characterised in that：Comprise the following steps:
（1）, lactide and bamboo perfume (or spice) charcoal micro mist be added in agitator tank and be stirred operation, the weight of wherein bamboo perfume (or spice) charcoal micro mist is
The 0.5~15% of the gross weight of lactide and bamboo perfume (or spice) charcoal micro mist, 20~40min is stirred, until well mixed；
（2）, open stirring pot bottom the first valve, by the first measuring pump by the mixture of lactide and bamboo perfume (or spice) charcoal micro mist pass through
First pipeline drops into and preliminary polymerization operation is just carried out in poly- tank, and the temperature of preliminary polymerization operation is 100~150 DEG C, preliminary poly-
The time of cooperation industry is 1~2h, pressure 0.2MPa, after preliminary polymerization operation, the mixture quilt of lactide and bamboo perfume (or spice) charcoal micro mist
Polymerization turns into sticky PLA bamboo charcoal melt；
（3）, open just poly- pot bottom the second valve, PLA bamboo charcoal melt is fallen into through second pipe by the second measuring pump
To final polymerization operation is carried out in poly- tank eventually, the final temperature for polymerizeing operation is 150~280 DEG C, the final time for polymerizeing operation
For 1~6h, pressure 0.3MPa；
（4）, open the 3rd valve of poly- pot bottom eventually, the PLA bamboo charcoal melt in poly- tank is discharged through the 3rd pipeline eventually, the 3rd
Pipeline is provided with duct type dynamic mixture device and the 3rd measuring pump, and the 3rd measuring pump is by PLA bamboo charcoal melt-stoichiometry and conveys
Into spinning manifold；
（5）, spinning pump and filament spinning component are provided with spinning manifold, spinning pump increases PLA bamboo charcoal melt-stoichiometry
Filament spinning component is entered after pressure, PLA bamboo charcoal melt is spun into bamboo charcoal acid fiber by polylactic by filament spinning component；
Duct type dynamic mixture device includes left fixed -piping, dynamic mixture pipeline and right fixed -piping, dynamic mixture pipeline
Left part and right part are connected with the right-hand member of left fixed -piping and the left end flange of right fixed -piping respectively, in dynamic mixture pipeline
Provided with dynamic screw dividing plate, by dynamic mixture pipeline, axially inside direction is separated into the first semicircle spiral and led to dynamic screw dividing plate
Road and the second semicircle helical duct, dynamic screw dividing plate coordinate with dynamic mixture inner-walls of duct gap；
Plane where the both ends of dynamic screw dividing plate is each perpendicular to the central axis of dynamic mixture pipeline, dynamic screw dividing plate
Right part center is provided with dynamic cone tank, and it is top that dynamic screw dividing plate left part center is provided with dynamic；
Right support is provided with right fixed -piping, right support is provided with right stationary center, and right stationary center left end withstands on dynamic taper
In groove；Left socle is provided with left fixed -piping, fixed cone tank is provided with the right side of left socle, the top left end of dynamic withstands on fixed taper
In groove.
2. bamboo charcoal polylactic acid melt direct spinning according to claim 1, it is characterised in that：Bamboo is fragrant in step (1)
The weight of charcoal micro mist is the 10% of the gross weight of lactide and bamboo perfume (or spice) charcoal micro mist.
3. bamboo charcoal polylactic acid melt direct spinning according to claim 1 or 2, it is characterised in that：The dynamic is mixed
The quantity of pipe material is more than or equal to two sections, and flange connects between adjacent two sections of dynamic mixture pipelines, one section of dynamic mixture pipeline
Dynamically top left end is withstood in the dynamic cone tank of one section of adjacent dynamic mixture pipeline.
4. bamboo charcoal polylactic acid melt direct spinning according to claim 3, it is characterised in that：Left fixed -piping and/
Or the length of right fixed -piping is less than the length of dynamic mixture pipeline.
5. bamboo charcoal polylactic acid melt direct spinning according to claim 4, it is characterised in that：Step（4）In gather breast
Sour detailed process of the bamboo charcoal melt through the 3rd pipeline be：PLA bamboo charcoal melt after polymerization is entered by left fixed -piping, sticky
PLA bamboo charcoal melt under high pressure by dynamic mixture pipeline when, dynamic screw dividing plate starts under the promotion of melt
Rotation, the dynamic screw dividing plate that the viscous melt on the inwall of dynamic mixture pipeline is rotated scrape, the viscous melt scraped with
Diluter melt among dynamic mixture pipeline mixes, and after some groups of dynamic mixture pipelines, uniform PLA melts
Body is discharged by right fixed -piping by the 3rd measuring pump.
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| CN201610014587.0A CN105463588B (en) | 2016-01-11 | 2016-01-11 | Bamboo charcoal polylactic acid melt direct spinning |
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| CN201610014587.0A CN105463588B (en) | 2016-01-11 | 2016-01-11 | Bamboo charcoal polylactic acid melt direct spinning |
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| CN105463588A CN105463588A (en) | 2016-04-06 |
| CN105463588B true CN105463588B (en) | 2018-02-16 |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105818291B (en) * | 2016-04-15 | 2017-11-14 | 河南省龙都生物科技有限公司 | PLA delustring section production system |
| CN105734701B (en) * | 2016-04-15 | 2018-04-20 | 河南省龙都生物科技有限公司 | Polylactic acid slice adds titanium dioxide delustring spinning production technology |
| CN105803565B (en) * | 2016-04-15 | 2018-02-16 | 河南省龙都生物科技有限公司 | PLA delustering fibre direct fabrics production technology |
| CN105734702B (en) * | 2016-04-15 | 2017-11-10 | 河南省龙都生物科技有限公司 | PLA delustering fibre direct fabrics system |
| CN105729660B (en) * | 2016-04-15 | 2018-01-30 | 河南省龙都生物科技有限公司 | PLA delustring section production technology |
| CN105714391B (en) * | 2016-04-15 | 2018-04-20 | 河南省龙都生物科技有限公司 | Polylactic acid bi-component composite fiber spinning technique |
| CN106757720B (en) * | 2017-01-18 | 2019-03-05 | 杭州奥达化纤有限公司 | The processing technology of antislip socks production technology and its PLA Composite Fiber |
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| CN105463588A (en) | 2016-04-06 |
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