CN109440198A - Polymer melt conveying technique - Google Patents
Polymer melt conveying technique Download PDFInfo
- Publication number
- CN109440198A CN109440198A CN201811335504.3A CN201811335504A CN109440198A CN 109440198 A CN109440198 A CN 109440198A CN 201811335504 A CN201811335504 A CN 201811335504A CN 109440198 A CN109440198 A CN 109440198A
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- CN
- China
- Prior art keywords
- melt
- polymer melt
- conveying technique
- technique according
- spinning
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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
- D01D5/08—Melt spinning methods
- D01D5/088—Cooling filaments, threads or the like, leaving the spinnerettes
- D01D5/092—Cooling filaments, threads or the like, leaving the spinnerettes in shafts or chimneys
-
- 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
- D01D1/09—Control of pressure, temperature or feeding rate
-
- 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
- D01D1/10—Filtering or de-aerating the spinning solution or melt
- D01D1/106—Filtering
-
- 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
- D01D4/00—Spinnerette packs; Cleaning thereof
- D01D4/02—Spinnerettes
-
- 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
- D01D5/096—Humidity control, or oiling, of filaments, threads or the like, leaving the spinnerettes
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
Abstract
The present invention relates to a kind of polymer melt conveying techniques.The conveying technique includes the following steps: polymer melt passing through delivery pump, successively spinning manifold is delivered to by fondant filter, melt booster pump, melt cooler, melt distributing valve, melt distribution pipe, melt stream is extruded by metering pump, filament spinning component and the spinneret in spinning manifold, synnema, last synnema winding shaping after oiling are cooled and solidified to obtain using cross air blasting.The method that the present invention conveys is easy, and the polymer melt conveyed has preferable degree of purity, stable fiber quality, and is discharged without waste material, has achieved the purpose that clean manufacturing, energy-saving and emission-reduction.
Description
Technical field
The present invention relates to a kind of polymer melt conveying techniques.
Background technique
Currently, polymer melt in the market mainly passes through following several technological approaches preparations, first is that using different cross section shape
The polyester fiber of state or different performance carries out the repetition and continuous group of networks that induce with air by extending filament length direction
It closes or combines combined processing method to realize, generally using conventional spinning and stretching, high speed spinning or spin-drawing one step
Manufacturing procedure, processing method is there are manufacturing procedure complexity, and process flow is long, and process velocity is low, high production cost, low efficiency etc.
Shortcomings.
Summary of the invention
The purpose of the present invention is being directed to the above-mentioned problems in the prior art, it is short to provide a kind of process flow, processes work
The polymer melt conveying technique of sequence simplicity.
Object of the invention can be realized by the following technical scheme: polymer melt conveying technique, the conveying technique
Include the following steps: polymer melt through delivery pump, successively passes through fondant filter, melt booster pump, melt cooler, melts
Body distributing valve, melt distribution pipe are delivered to spinning manifold, squeeze out by metering pump, filament spinning component and the spinneret in spinning manifold
At melt stream, synnema, last synnema winding shaping after oiling are cooled and solidified to obtain using cross air blasting.
The present invention first passes through fondant filter, main function before polyplant melt enters spinning production line；1.
It is the aggregated particle or impurity filtered off in melt；2. extend filament spinning component uses the time, melt guarantees after melt filtration
The load of filament spinning component is also effectively reduced in the degree of purity of melt, the quality of stable fibers, extends the service life of component；3. drop
Low cost of labor, homogenizes melt, since filter chamber volume is big, the residence time is long, and melt can be homogenized effectively.Due to molten
During transportation, melt constantly rubs with melt tube wall body, melt flow rate decline, and melt conveying pressure is also corresponding
Decline in order to keep the melt flow rate in transmission process to stablize, while guaranteeing that melt enters spinning manifold with constant pressure,
The present invention is equipped with booster pump after fondant filter.Polymer melt increases by pressurization pump pressure, and polymer segment extruding rubs
It wipes, a part of mechanical energy is converted to thermal energy, shows as melt pressure raising, and temperature increases；From the point of view of collateral security melt quality angle
Be it is unfavorable, the excessively high degradation that will increase melt of temperature influences spinning, therefore melt cooler is arranged after booster pump and adjusts
Spinning temperature.Again since polymer melt is non-newtonian flow fluid, there is speed for melt flows in the section in melt pipe
Gradient is spent, the melt temperature of a section each section and residence time are all different, in order to guarantee melt quality uniformly in melt
In the pipeline of transportation system, appropriate location is provided with melt distribution pipe (static mixer), mixes to pipeline each section melt
Close even match.In addition, melt stream is in the distance for leaving 10~15cm of spinning plate surface；Temperature is still very high, and mobility is preferable,
This section of distance is usually zone of silence, in case melt stream is disturbed, it, must due to releasing a large amount of condensation heats in surrounding air
It must blow a cold wind over after silk goes out spinneret and carry out hot-fluid exchange, release heat to take and make melt stream solidificating fiber.Therefore originally
Invention is cooled and solidified using cross air blasting into synnema.
In above-mentioned polymer melt conveying technique, the polymer melt is the terephthaldehyde that mass fraction is 55-65%
The mixture for the ethylene glycol that acid and mass fraction are 35-45%.
In above-mentioned polymer melt conveying technique, the temperature of spinning manifold is 270-275 DEG C.The temperature of spinning manifold is managed
It is required that very strict, the fusing point of terylene is 260 DEG C or so, 235 DEG C of softening point, the sharply thermal degradation of the generation more than 300 DEG C, so
Invention controls the temperature of spinning manifold at 270-275 DEG C.Temperature is excessively high, and Yi Zhutou when spinning, finished silk extends bigger than normal, temperature
Too low, when stretching, is also easy to produce lousiness and broken end, and operating difficulties, melt temperature often changes in process of production, is easy to produce fibre
Dimension dyeing is poor.
In above-mentioned polymer melt conveying technique, metering pump specification is 1.6ml/r~2.4ml/r.
In above-mentioned polymer melt conveying technique, filament spinning component is by sand cup, shell, spinneret, melt filtration material group
At.
Filament spinning component acts on: 1. homogenize melt；2. impurity screening and aggregated particle, most of impurity and cohesion grain are
It is filtered by filter, but still with the presence of partial impurities, and filter screen and metal sand can effectively filter off small pellet in component, protect
Demonstrate,prove melt quality；3. improving melt rheological property.
The sand loading amount and spinneret of filament spinning component are spinning important parameters, the present invention preferably, spinneret aperture:
0.4mm~0.23mm, draw ratio: 2.8~3.3.
In above-mentioned polymer melt conveying technique, oil applying rate 0.3%-0.5%.
In above-mentioned polymer melt conveying technique, the finishing oil pump specification used that oils is 0.08ml/r~0.12ml/r.
Compared with prior art, the method that the present invention conveys is easy, and obtained polymer melt has preferable degree of purity, surely
Fixed fiber quality, and be discharged without waste material, achieve the purpose that clean manufacturing, energy-saving and emission-reduction.
Specific embodiment
The following is specific embodiments of the present invention, illustrates that technical scheme of the present invention will be further described, but this hair
It is bright to be not limited to these examples.
Embodiment 1
Polymer melt conveying technique, the conveying technique include the following steps: polymer melt (mass fraction 60%
Terephthalic acid (TPA) and mass fraction be 40% ethylene glycol mixture) by delivery pump, successively by fondant filter, molten
Body booster pump, melt cooler, melt distributing valve, melt distribution pipe are delivered to the spinning manifold that temperature is 272 DEG C, by spinning
Metering pump, filament spinning component and the spinneret that specification in cabinet is 2.0ml/r are extruded into melt stream, solid using side-blown air cooling
Change to obtain synnema, last synnema winding shaping after oiling.Wherein, filament spinning component is by sand cup, shell, spinneret, melt filtration
Material composition；The aperture of spinneret: 0.32mm, draw ratio: 3.0；Oil applying rate is 0.4%, and the finishing oil pump specification used that oils is
0.1ml/r。
Embodiment 2
Polymer melt conveying technique, the conveying technique include the following steps: polymer melt (mass fraction 55%
Terephthalic acid (TPA) and mass fraction be 45% ethylene glycol mixture) by delivery pump, successively by fondant filter, molten
Body booster pump, melt cooler, melt distributing valve, melt distribution pipe are delivered to the spinning manifold that temperature is 270 DEG C, by spinning
Metering pump, filament spinning component and the spinneret that specification in cabinet is 2.4ml/r are extruded into melt stream, solid using side-blown air cooling
Change to obtain synnema, last synnema winding shaping after oiling.Wherein, filament spinning component is by sand cup, shell, spinneret, melt filtration
Material composition；The aperture of spinneret: 0.4mm, draw ratio: 3.3；Oil applying rate is 0.3%, and the finishing oil pump specification used that oils is
0.12ml/r。
Embodiment 3
Polymer melt conveying technique, the conveying technique include the following steps: polymer melt (mass fraction 65%
Terephthalic acid (TPA) and mass fraction be 35% ethylene glycol mixture) by delivery pump, successively by fondant filter, molten
Body booster pump, melt cooler, melt distributing valve, melt distribution pipe are delivered to the spinning manifold that temperature is 275 DEG C, by spinning
Metering pump, filament spinning component and the spinneret that specification in cabinet is 1.6ml/r are extruded into melt stream, solid using side-blown air cooling
Change to obtain synnema, last synnema winding shaping after oiling.Wherein, filament spinning component is by sand cup, shell, spinneret, melt filtration
Material composition；The aperture of spinneret: 0.23mm, draw ratio: 2.8；Oil applying rate is 0.5%, and the finishing oil pump specification used that oils is
0.08ml/r。
The method that the present invention conveys is easy, and the polymer melt conveyed has preferable degree of purity, stable cellulosic
Amount, and be discharged without waste material, achieve the purpose that clean manufacturing, energy-saving and emission-reduction.
This place embodiment is not exhaustive claimed midpoint of technical range and in embodiment technology
In scheme to single or multiple technical characteristics it is same replacement be formed by new technical solution, equally all the present invention claims
In the range of protection, and between the parameter that is related to of the present invention program if not otherwise specified, then there is no can not between each other
The unique combinations of replacement.
Specific embodiment described herein is only an example for the spirit of the invention.The neck of technology belonging to the present invention
The technical staff in domain can do various modifications or supplement or is substituted in a similar manner to described specific embodiment, but simultaneously
Spirit or beyond the scope defined by the appended claims of the invention is not deviated by.
It is skilled to this field although present invention has been described in detail and some specific embodiments have been cited
For technical staff, as long as it is obvious for can making various changes or correct without departing from the spirit and scope of the present invention.
Claims (8)
1. polymer melt conveying technique, which is characterized in that the conveying technique includes the following steps: to pass through polymer melt defeated
Pump is sent, is successively delivered to spinning by fondant filter, melt booster pump, melt cooler, melt distributing valve, melt distribution pipe
Cabinet is extruded into melt stream by metering pump, filament spinning component and the spinneret in spinning manifold, is cooled and solidified using cross air blasting
Obtain synnema, last synnema winding shaping after oiling.
2. polymer melt conveying technique according to claim 1, which is characterized in that the polymer melt is mass fraction
The mixture for the ethylene glycol that terephthalic acid (TPA) and mass fraction for 55-65% are 35-45%.
3. polymer melt conveying technique according to claim 1, which is characterized in that the temperature of spinning manifold is 270-275
℃。
4. polymer melt conveying technique according to claim 1, which is characterized in that metering pump specification be 1.6ml/r~
2.4ml/r。
5. polymer melt conveying technique according to claim 1, which is characterized in that filament spinning component is by sand cup, shell, spray
Filament plate, melt filtration material composition.
6. polymer melt conveying technique according to claim 5, which is characterized in that the aperture of spinneret: 0.4mm~
0.23mm, draw ratio: 2.8~3.3.
7. polymer melt conveying technique according to claim 1, which is characterized in that oil applying rate 0.3%-0.5%.
8. polymer melt conveying technique according to claim 7, which is characterized in that the finishing oil pump specification used that oils is
0.08ml/r~0.12ml/r.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811335504.3A CN109440198A (en) | 2018-11-10 | 2018-11-10 | Polymer melt conveying technique |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811335504.3A CN109440198A (en) | 2018-11-10 | 2018-11-10 | Polymer melt conveying technique |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109440198A true CN109440198A (en) | 2019-03-08 |
Family
ID=65552576
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811335504.3A Pending CN109440198A (en) | 2018-11-10 | 2018-11-10 | Polymer melt conveying technique |
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| Country | Link |
|---|---|
| CN (1) | CN109440198A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113106625A (en) * | 2021-03-31 | 2021-07-13 | 山东道恩高分子材料股份有限公司 | Method for preparing degradable PBAT melt-blown non-woven fabric by one-step method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101580974A (en) * | 2009-05-31 | 2009-11-18 | 中国纺织工业设计院 | Continuous cation modified polyester preparation method and system for continuously preparing modified polyester melt and lateral slice by adopting same |
| CN102191578A (en) * | 2011-01-21 | 2011-09-21 | 滁州安兴环保彩纤有限公司 | System and method for producing composite fibers |
| CN102409415A (en) * | 2011-11-09 | 2012-04-11 | 无锡市宇翔化纤工程设备有限公司 | Multi-head chemical fiber monofilament spinning assembly |
| CN102691130A (en) * | 2012-06-19 | 2012-09-26 | 福建经纬新纤科技实业有限公司 | Process for manufacturing fire-retardant polyester fiber |
| KR101360989B1 (en) * | 2013-01-04 | 2014-02-11 | 주식회사 효성 | Feeding device for oil |
| CN104141175A (en) * | 2013-05-08 | 2014-11-12 | 江苏德力化纤有限公司 | Super-fine denier FDY (fully drawn yarn) spinning equipment and spinning process |
-
2018
- 2018-11-10 CN CN201811335504.3A patent/CN109440198A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101580974A (en) * | 2009-05-31 | 2009-11-18 | 中国纺织工业设计院 | Continuous cation modified polyester preparation method and system for continuously preparing modified polyester melt and lateral slice by adopting same |
| CN102191578A (en) * | 2011-01-21 | 2011-09-21 | 滁州安兴环保彩纤有限公司 | System and method for producing composite fibers |
| CN102409415A (en) * | 2011-11-09 | 2012-04-11 | 无锡市宇翔化纤工程设备有限公司 | Multi-head chemical fiber monofilament spinning assembly |
| CN102691130A (en) * | 2012-06-19 | 2012-09-26 | 福建经纬新纤科技实业有限公司 | Process for manufacturing fire-retardant polyester fiber |
| KR101360989B1 (en) * | 2013-01-04 | 2014-02-11 | 주식회사 효성 | Feeding device for oil |
| CN104141175A (en) * | 2013-05-08 | 2014-11-12 | 江苏德力化纤有限公司 | Super-fine denier FDY (fully drawn yarn) spinning equipment and spinning process |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113106625A (en) * | 2021-03-31 | 2021-07-13 | 山东道恩高分子材料股份有限公司 | Method for preparing degradable PBAT melt-blown non-woven fabric by one-step method |
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| PB01 | Publication | ||
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Application publication date: 20190308 |