EP0396646B2 - Vorrichtung zum schmelzspinnen mit hohen abzugsgeschwindigkeiten - Google Patents
Vorrichtung zum schmelzspinnen mit hohen abzugsgeschwindigkeiten Download PDFInfo
- Publication number
- EP0396646B2 EP0396646B2 EP89908959A EP89908959A EP0396646B2 EP 0396646 B2 EP0396646 B2 EP 0396646B2 EP 89908959 A EP89908959 A EP 89908959A EP 89908959 A EP89908959 A EP 89908959A EP 0396646 B2 EP0396646 B2 EP 0396646B2
- Authority
- EP
- European Patent Office
- Prior art keywords
- spinning
- thread
- spinneret
- melt
- spinning chamber
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
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
- D01D5/098—Melt spinning methods with simultaneous stretching
-
- 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
Definitions
- the invention relates to a device for melt spinning with take-off speeds above 5000 m / min, consisting of a spinning block, with a spinneret package and a thread suction nozzle as well a spinning chamber which is arranged between the spinneret pack and the thread suction nozzle and with their inlet opening with the spinning nozzle package and with their outlet opening with the thread take-off nozzle is connected gastight.
- the filaments cool down critical process step.
- the problem is that on the one hand the thread temperature is drastic lowered and on the other hand the thread speed must be increased.
- Thread extraction nozzles for thread cooling during melt spinning at speeds above 5000 m / min are known. On the one hand, they suck in the threads and, on the other hand, they serve to parallel the threads to supply them with a cooling gas.
- such a nozzle is used in connection with a heating chamber, whereby the heating chamber is located directly under the spinning block.
- EP-A-0 244 217 also describes the use of such a nozzle for the same purpose in Connection described with a venturi nozzle operated with a hot gas, said venturi nozzle is also attached directly under the spinning block.
- Both the heating chamber and the hot gas venturi, both directly Attached under the spinning block are used, among other things, to improve spinning and thread properties. As far as the thread properties are concerned, the dyeability in particular becomes positive affected.
- the thread suction nozzle for thread cooling is between 50 and 600 in the case of the heating chamber mm below the same, in the case of the Venturi nozzle at a sufficient distance below that that there escaping air does not affect the operation of the same.
- the threads arrive there as an open bundle and are still quite fluid on their way there due to the delayed thread cooling. i.e. little solidified.
- the object of the invention is to provide a device which allows the titer regularity and to improve the strength of a very fast spun filament.
- Another task is to reduce the energy-intensive operation of a heating chamber or the likewise energy-consuming specific hot air consumption.
- the object is achieved in a device according to the characterizing part of claim 1.
- the arrangement according to the invention creates a negative pressure in the spinning chamber which is targeted Cooling air sucks in from the environment and surprisingly has an excellent titer regularity along the resulting thread is achieved.
- the spinning chamber with its inlet opening on the spinning block and with it Outlet opening is attached to the thread suction nozzle in a gastight manner.
- the attachment is done in a known manner and using sealing material.
- the formation of the bottom of the spinning chamber to one Funnel has advantages in terms of air flow.
- the spinning chamber essentially consists of a tube closed on its periphery, which only in a certain range, namely from 100 to 250 mm, in particular from 200 to 250 mm from the spinneret pack is designed as a sieve tube. Instead of a sieve tube, the perforated area with any openings for gas passage.
- the air permeability of the sieve tube should be 20 to 40%, i.e. the perforated one 20 to 40% of the area should be provided with openings.
- a filament produced with the device according to the invention has a titer irregularity from ⁇ 0.60% Uster on.
- a melt-spinnable granulate is formed in the spinning block 1 in a known manner melted and clamped into filaments 5 through the spinneret pack 2. Due to the suction effect of the A thread suction nozzle 7 creates a negative pressure in the spinning chamber 3. This causes room air to flow through the Sieve tube 4 of the spinning chamber 3 and cools the filaments 5, which at high speed by means of Coil 10 are withdrawn. Before the filaments 5 are wound on the bobbin 10, they pass through the thread oiler 8 and the swirling nozzle 9.
- a polyester granulate with an intrinsic viscosity (IV) of 0.62 dl / g is melted at 298 ° C. in spinning block 1, spun into 24 filaments with a total titer of 50 dtex at a take-off speed of 5500 m / min.
- the spinning chamber was 460 mm long and perforated between 150 and 250 mm below the nozzle plate with a permeability of 38%.
- the thread suction nozzle 7 was subjected to an air pressure of 100 kPa (1 bar) and indicated an air consumption of 5.6 Nm 3 / h. After leaving the thread suction nozzle 7, the thread was provided with a spin preparation and swirled in a known manner.
- the table shows that a filament thread produced with the device according to the invention has a has significant improvement in yarn cleanliness and an increase in strength.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
Description
- Fig. 1
- eine schematische Spinneinrichtung mit der erfindungsgemässen Spinnkammer
- Fig. 2
- ein Uster-Diagramm eines mit der erfindungsgemässen Spinneinrichtung hergestellten Filamentes
ohne Spinnkammer | mit erfindungsgemässer Spinnkammer | |
Druck bar | 1 | 1 |
Luftverbrauch Nm3/h | 5,6 | 5,6 |
Dehnung % | 63,0 | 59,8 |
Festigkeit cN/tex | 28,1 | 34,1 |
Uster % | 0,98 | 0.48 |
Claims (5)
- Vorrichtung zum Schmelzspinnen mit Abzugsgeschwindigkeiten über 5000 m/min, bestehend aus einem Spinnblock (1), mit einem Spinndüsenpaket (2) und einer Fadenabsaugdüse (7) sowie einer Spinnkammer (3), die zwischen dem Spinndüsenpaket (2) und der Fadenabsaugdüse (7) angeordnet ist und
mit ihrer Eintrittsöffnung mit dem Spinndüsenpaket (2) und mit ihrer Austrittsöffnung mit der Fadenabsaugdüse (7) gasdicht verbunden ist, dadurch gekennzeichnet, dass die im wesentlichen geschlossene Spinnkammer (3) im Abstandsbereich zwischen 100 bis 250 mm vom Spinndüsenpaket (2) teilweise als Siebrohr (4) ausgebildet ist. - Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass die Spinnkammer (3) in ihren unteren Teil zu einem Trichter (6) ausgebildet ist.
- Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass die Wand des Trichters (6) abgerundet ist.
- Vorrichtung nach Anspruch 3, dadurch gekennzeichnet, dass das Siebrohr (4) eine Länge von 50 bis 150 mm aufweist.
- Vorrichtung nach Anspruch 3, dadurch gekennzeichnet, dass das Siebrohr (4) eine Luftdurchlässigkeit von 20 bis 40 % aufweist.
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH314688 | 1988-08-24 | ||
CH314688 | 1988-08-24 | ||
CH3146/88 | 1988-08-24 | ||
PCT/CH1989/000147 WO1990002222A1 (de) | 1988-08-24 | 1989-08-14 | Vorrichtung zum schmelzspinnen mit hohen abzugsgeschwindigkeiten und filament hergestellt mittels der vorrichtung |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0396646A1 EP0396646A1 (de) | 1990-11-14 |
EP0396646B1 EP0396646B1 (de) | 1993-12-22 |
EP0396646B2 true EP0396646B2 (de) | 2001-01-03 |
Family
ID=4249607
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP89908959A Expired - Lifetime EP0396646B2 (de) | 1988-08-24 | 1989-08-14 | Vorrichtung zum schmelzspinnen mit hohen abzugsgeschwindigkeiten |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0396646B2 (de) |
JP (2) | JPH03500908A (de) |
BR (1) | BR8907063A (de) |
DE (1) | DE58906504D1 (de) |
WO (1) | WO1990002222A1 (de) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS52133048U (de) * | 1976-04-05 | 1977-10-08 | ||
EP0530652B1 (de) * | 1991-09-06 | 1995-12-06 | Akzo Nobel N.V. | Vorrichtung zum Schnellspinnen von multifilen Fäden und deren Verwendung |
BR9400682A (pt) * | 1993-03-05 | 1994-10-18 | Akzo Nv | Aparelho para a fiação em fusão de fios multifilamentares e sua aplicação |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA944913A (en) * | 1970-04-01 | 1974-04-09 | Toray Industries, Inc. | Apparatus and method for manufacturing continuous filaments from synthetic polymers |
JPS5411715B2 (de) * | 1971-10-05 | 1979-05-17 | ||
JPS5167408A (ja) * | 1974-12-02 | 1976-06-11 | Toray Industries | Shinkuboshihoho |
KR860000205B1 (ko) * | 1981-01-19 | 1986-03-03 | 세꼬 마오미 | 상압 염색 가능한 폴리에스테르 섬유 |
US5034182A (en) * | 1986-04-30 | 1991-07-23 | E. I. Du Pont De Nemours And Company | Melt spinning process for polymeric filaments |
-
1989
- 1989-08-14 EP EP89908959A patent/EP0396646B2/de not_active Expired - Lifetime
- 1989-08-14 DE DE89908959T patent/DE58906504D1/de not_active Expired - Fee Related
- 1989-08-14 WO PCT/CH1989/000147 patent/WO1990002222A1/de active IP Right Grant
- 1989-08-14 JP JP50844489A patent/JPH03500908A/ja active Pending
- 1989-08-14 BR BR898907063A patent/BR8907063A/pt unknown
-
1996
- 1996-04-01 JP JP1996002396U patent/JP2535880Y2/ja not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0396646B1 (de) | 1993-12-22 |
JPH081665U (ja) | 1996-12-17 |
BR8907063A (pt) | 1991-01-02 |
JP2535880Y2 (ja) | 1997-05-14 |
JPH03500908A (ja) | 1991-02-28 |
DE58906504D1 (de) | 1994-02-03 |
WO1990002222A1 (de) | 1990-03-08 |
EP0396646A1 (de) | 1990-11-14 |
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