US2891375A - Apparatus for the production of high-bulk yarn - Google Patents
Apparatus for the production of high-bulk yarn Download PDFInfo
- Publication number
- US2891375A US2891375A US632141A US63214157A US2891375A US 2891375 A US2891375 A US 2891375A US 632141 A US632141 A US 632141A US 63214157 A US63214157 A US 63214157A US 2891375 A US2891375 A US 2891375A
- Authority
- US
- United States
- Prior art keywords
- tube
- heating
- yarn
- filament
- production
- 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
- 238000004519 manufacturing process Methods 0.000 title description 4
- 238000010438 heat treatment Methods 0.000 description 14
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 229920001169 thermoplastic Polymers 0.000 description 2
- 239000004416 thermosoftening plastic Substances 0.000 description 2
- 241001589086 Bellapiscis medius Species 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 238000009422 external insulation Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 235000002020 sage Nutrition 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 239000004758 synthetic textile Substances 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
- 229910052902 vermiculite Inorganic materials 0.000 description 1
- 235000019354 vermiculite Nutrition 0.000 description 1
- 239000010455 vermiculite Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
Classifications
-
- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02J—FINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS, ROPES OR THE LIKE
- D02J13/00—Heating or cooling the yarn, thread, cord, rope, or the like, not specific to any one of the processes provided for in this subclass
- D02J13/003—Heating or cooling the yarn, thread, cord, rope, or the like, not specific to any one of the processes provided for in this subclass by contact with at least one stationary surface, e.g. a plate
Definitions
- This invention relates to apparatus for producing] bulked yarn by imparting thereto and setting a false twist.
- An object of the present invention is to provide a further improvement in which the heating element is a metal tube of small diameter which constitutes an electric resistor.
- the filament 1 from the winding 2 passes through a guide 3 and thence passes through a tube 5 which in the form shown is curved so that the filament contacts the surface of the tube as it is fed therethrough.
- the tube 5 may be made straight instead of curved and the filament be caused to contact the side of the tube by suitable guide means.
- the tube 5 is provided with terminals 6 which are connected to a suitable source of electric current for heating the tube by its resistance effect.
- the said tube 5 may be made of a metal known for its high resistance properties, for example, of nickelchrome alloy or of metals or alloys of lower resistance.
- the applied voltage is preferably low.
- the adjacent tubes may be connected in parallel or in a series.
- the resistor tube 5 is thermally insulated by enclos- 2,891,375 Patented June 23, 1959 ing it ina large tube,10', for. example;severalcentimeters in. diameter, which is, internally linedbyan insulating, material 11, for example, vermiculite, which fills the entire space between 'the inne'r' "wall of thelarge' tube 10 and the surface ,ofrthere sis tor tube ,5.
- the ends of the large tube 19" are" closed discs'fl, for exam le of plastic material, with an orifice 13"of "a 'size for the" pas sage of the tube 5.
- the filament after passing through the tube 5 is fed through a false twister 15 which is rotated by suitable means indicated as a belt 16 and is adapted to produce a twist in the filament which feeds back along the filament toward the heating tube 5 until it is arrested by contact of the filament with the surface of such tube.
- the temperature of the tube 5 is adapted to heat the filament for setting the false twist therein.
- the filament 1 passes through the guide 17 and is then wound onto a spool 18. The external insulation of the tube is readily applied and maintained.
- the principal advantage of the resistor-type heating tube is that it is easier to produce with uniform resistance properties than the U-blade, which is a tubular segment and the fact that the convection radiation within the said tube, which appears to play an important part in the heating of the yarns continuously travelling through the tube, is efiiciently utilized.
- the internal diameter of the heating tube 5 may vary, and may be, for example, of the order of several millimeters. These tubes are individually calibrated and are preferably arranged in series, for example, for a section of a machine or for one frame or bank.
- the temperature Within the tube 5 may be adjusted to with :1" C. at most and even to within :05 C. for a group of tubes connected in series.
- heating tube 5 furthermore permits ready positioning of the yarn by applying suction on one end of the tube.
- Individual starting of each tube may be envisaged or a group may be threaded by means of a suction device comprising a number of nozzles, which may be placed at the outlet from the group of tubes.
- Apparatus for setting a false twist in synthetic thermo-plastic filaments comprising a heater tube composed of a peripheral wall completely surrounding a heating zone and made from metal having electrical resistance characteristics, said tube being curved axially into arcuate shape, means passing an electric current through said heater tube for heating said tube due to its resistance, means feeding said filaments through said tube in contact with the inner arcuate surface thereof, and a false twisting device disposed to impart a false twist to the filaments emerging from said tube, whereby the twist feeds along said filaments into the tube and is set therein and is removed after the filaments pass the false twisting device.
- Apparatus for setting a false twist in synthetic thermoplastic filaments comprising a heater tube composed of a peripheral wall completely surrounding a heating zone, said tube being curved axially into arcuate shape, means heating the walls of said tube, means feeding the filaments through said tube in contact with the References Cited in the file of this patent UNTIED STATES PATENTS 2,761,272 Vandamme et al. Sept. 4, 1956 10 Stoddard et 3.1. Aug. 20, 1957 Kingsburg et a1. Nov. 19, 1957 Kunzle Feb. 11, 1958 FOREIGN PATENTS France Oct. 13, 1954
Description
June 23, 1959 VANDAMME ETAL I 2,891,375
APPARATUS FOR THE PRODUCTION OF HIGH-BULK YARN Filed Jan. 2, 1957 eYW ATTORNEY United States Patent- APPARATUS FOR THE' PRODUCTION OF HIGH-BULK YARN Louis Vandamme and Louis Rouyer, Saulce, France, assignors to Moulinage et Retarderie de Chavanoz, Chavanoz (Isere) France, a corporation of France Application January 2, 1957, Serial No. 632,141
Claims priority, application France January 6, 1956 3 Claims. (Cl. 5734) This invention relates to apparatus for producing] bulked yarn by imparting thereto and setting a false twist.
Manufacture of bulked yarns in synthetic textiles, for example of polyamide, has formed the subject of a large number of patents. One of the processes employed for this purpose comprises the application of a false twist which is immediately set.
In Patent No. 2,741,893 of April 17, 1956, there has been described process and apparatus for obtaining bulked yarn with the application of a false twist, in which the said false twist is set by virtue of the fact that it can advance freely in the yarn towards a thermal setting member which may be a hot water bath, a vaporizing tube, etc. According to the said patent, the yarn undergoes a heating and passes over a twist-arresting member and thereafter immediately enters the member which imparts the false twist.
United States Patent No. 2,761,272 of September 4, 1956 describes a modification in which the heating of the yarn is effected by prolonged contact with a heated curved surface, notably by means of an internal circulation of hot fluid. Applicants application Serial No. 534,945, filed September 19, 1955, now Patent No. ,780,047, describes another modification in which the heating element consists of an electric resistor in the form of a blade of U-section, in which the yarn is also heated by contact.
An object of the present invention is to provide a further improvement in which the heating element is a metal tube of small diameter which constitutes an electric resistor.
Other objects and advantages will be apparent as the nature of the invention is more fully disclosed.
The invention will be better understood by referring to the following description taken in connection with the accompanying drawing in which the figure is a diagrammatic view of one embodiment of the apparatus embodying the present invention.
Referring to the drawing, the filament 1 from the winding 2 passes through a guide 3 and thence passes through a tube 5 which in the form shown is curved so that the filament contacts the surface of the tube as it is fed therethrough. In some instances however the tube 5 may be made straight instead of curved and the filament be caused to contact the side of the tube by suitable guide means. The tube 5 is provided with terminals 6 which are connected to a suitable source of electric current for heating the tube by its resistance effect.
The said tube 5 may be made of a metal known for its high resistance properties, for example, of nickelchrome alloy or of metals or alloys of lower resistance. The applied voltage is preferably low. In a bank of tubes the adjacent tubes may be connected in parallel or in a series.
The resistor tube 5 is thermally insulated by enclos- 2,891,375 Patented June 23, 1959 ing it ina large tube,10', for. example;severalcentimeters in. diameter, which is, internally linedbyan insulating, material 11, for example, vermiculite, which fills the entire space between 'the inne'r' "wall of thelarge' tube 10 and the surface ,ofrthere sis tor tube ,5. The ends of the large tube 19" are" closed discs'fl, for exam le of plastic material, with an orifice 13"of "a 'size for the" pas sage of the tube 5.
The filament after passing through the tube 5 is fed through a false twister 15 which is rotated by suitable means indicated as a belt 16 and is adapted to produce a twist in the filament which feeds back along the filament toward the heating tube 5 until it is arrested by contact of the filament with the surface of such tube. The temperature of the tube 5 is adapted to heat the filament for setting the false twist therein. Finally, the filament 1 passes through the guide 17 and is then wound onto a spool 18. The external insulation of the tube is readily applied and maintained.
The principal advantage of the resistor-type heating tube is that it is easier to produce with uniform resistance properties than the U-blade, which is a tubular segment and the fact that the convection radiation within the said tube, which appears to play an important part in the heating of the yarns continuously travelling through the tube, is efiiciently utilized.
For all these reasons, the output of the electric heating is clearly improved and the heat losses are reduced to a minimum.
The internal diameter of the heating tube 5 may vary, and may be, for example, of the order of several millimeters. These tubes are individually calibrated and are preferably arranged in series, for example, for a section of a machine or for one frame or bank.
Under these conditions the temperature Within the tube 5 may be adjusted to with :1" C. at most and even to within :05 C. for a group of tubes connected in series.
The use of the heating tube 5 furthermore permits ready positioning of the yarn by applying suction on one end of the tube. Individual starting of each tube may be envisaged or a group may be threaded by means of a suction device comprising a number of nozzles, which may be placed at the outlet from the group of tubes.
It will be understood that the invention is in no way limited to the embodiments referred to by way of example.
What is claimed is:
1. Apparatus for setting a false twist in synthetic thermo-plastic filaments comprising a heater tube composed of a peripheral wall completely surrounding a heating zone and made from metal having electrical resistance characteristics, said tube being curved axially into arcuate shape, means passing an electric current through said heater tube for heating said tube due to its resistance, means feeding said filaments through said tube in contact with the inner arcuate surface thereof, and a false twisting device disposed to impart a false twist to the filaments emerging from said tube, whereby the twist feeds along said filaments into the tube and is set therein and is removed after the filaments pass the false twisting device.
2. Apparatus as set forth in claim 1 in which heat insulation is disposed around said tube.
3. Apparatus for setting a false twist in synthetic thermoplastic filaments comprising a heater tube composed of a peripheral wall completely surrounding a heating zone, said tube being curved axially into arcuate shape, means heating the walls of said tube, means feeding the filaments through said tube in contact with the References Cited in the file of this patent UNTIED STATES PATENTS 2,761,272 Vandamme et al. Sept. 4, 1956 10 Stoddard et 3.1. Aug. 20, 1957 Kingsburg et a1. Nov. 19, 1957 Kunzle Feb. 11, 1958 FOREIGN PATENTS France Oct. 13, 1954
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR2891375X | 1956-01-06 |
Publications (1)
Publication Number | Publication Date |
---|---|
US2891375A true US2891375A (en) | 1959-06-23 |
Family
ID=9689674
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US632141A Expired - Lifetime US2891375A (en) | 1956-01-06 | 1957-01-02 | Apparatus for the production of high-bulk yarn |
Country Status (1)
Country | Link |
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US (1) | US2891375A (en) |
Cited By (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2990670A (en) * | 1957-03-07 | 1961-07-04 | North American Rayon Corp | Yarn crimping and texturing apparatus |
US2998693A (en) * | 1958-04-01 | 1961-09-05 | American Enka Corp | Yarn curling apparatus |
US3137119A (en) * | 1961-06-14 | 1964-06-16 | Chavanoz Moulinage Retorderie | Process for the production of high bulk yarns |
US3154906A (en) * | 1959-12-01 | 1964-11-03 | Onderzoekings Inst Res | Apparatus for false-twisting thermoplastic yarn |
US3237392A (en) * | 1963-08-14 | 1966-03-01 | Chavanoz Moulinage Retorderie | Process for producing bulked yarn |
US3238592A (en) * | 1964-04-15 | 1966-03-08 | Chemcell 1963 Ltd | Device for heating and stretching yarn |
US3247888A (en) * | 1962-06-27 | 1966-04-26 | Basf Ag | Electrically heated film evaporator |
US3277228A (en) * | 1964-04-15 | 1966-10-04 | Chemical 1963 Ltd | Method of stretching yarn |
US3276095A (en) * | 1964-04-15 | 1966-10-04 | Chemcell 1963 Ltd | Yarn stretching and heating apparatus |
US3319047A (en) * | 1964-06-05 | 1967-05-09 | Gen Electric | Low thermal loss electric heater for synthetic yarns |
US3382656A (en) * | 1966-01-03 | 1968-05-14 | Chavanoz Moulinage Retorderie | False-twist frames and method for texturing synthetic filaments |
US3851150A (en) * | 1971-11-19 | 1974-11-26 | Foerderung Forschung Gmbh | Electrical resistance tubular heating conductor with axially varying power distribution |
US3867767A (en) * | 1973-06-25 | 1975-02-25 | Xerox Corp | Preconditioner for paper stock |
US3942312A (en) * | 1973-10-19 | 1976-03-09 | Chavanoz S.A. | Machine for treating a textile thread by false twist |
US3946546A (en) * | 1973-04-19 | 1976-03-30 | Chavanoz S. A. | False twist texturing apparatus |
US4851643A (en) * | 1987-07-09 | 1989-07-25 | Milliken Research Corporation | Draw block |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1090011A (en) * | 1953-08-03 | 1955-03-25 | Method and devices for the treatment of textile threads | |
US2761272A (en) * | 1953-06-19 | 1956-09-04 | Chavanoz Moulinage Retorderie | Apparatus for producing curled yarn |
US2803105A (en) * | 1954-01-04 | 1957-08-20 | Universal Winding Co | Apparatus for processing textile yarns |
US2813393A (en) * | 1955-10-28 | 1957-11-19 | North American Rayon Corp | False twist spindle |
US2823292A (en) * | 1956-07-31 | 1958-02-11 | Heberlein Patent Corp | Device for the continuous heat treatment of textile yarns |
-
1957
- 1957-01-02 US US632141A patent/US2891375A/en not_active Expired - Lifetime
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2761272A (en) * | 1953-06-19 | 1956-09-04 | Chavanoz Moulinage Retorderie | Apparatus for producing curled yarn |
FR1090011A (en) * | 1953-08-03 | 1955-03-25 | Method and devices for the treatment of textile threads | |
US2803105A (en) * | 1954-01-04 | 1957-08-20 | Universal Winding Co | Apparatus for processing textile yarns |
US2813393A (en) * | 1955-10-28 | 1957-11-19 | North American Rayon Corp | False twist spindle |
US2823292A (en) * | 1956-07-31 | 1958-02-11 | Heberlein Patent Corp | Device for the continuous heat treatment of textile yarns |
Cited By (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2990670A (en) * | 1957-03-07 | 1961-07-04 | North American Rayon Corp | Yarn crimping and texturing apparatus |
US2998693A (en) * | 1958-04-01 | 1961-09-05 | American Enka Corp | Yarn curling apparatus |
US3154906A (en) * | 1959-12-01 | 1964-11-03 | Onderzoekings Inst Res | Apparatus for false-twisting thermoplastic yarn |
US3137119A (en) * | 1961-06-14 | 1964-06-16 | Chavanoz Moulinage Retorderie | Process for the production of high bulk yarns |
US3247888A (en) * | 1962-06-27 | 1966-04-26 | Basf Ag | Electrically heated film evaporator |
US3237392A (en) * | 1963-08-14 | 1966-03-01 | Chavanoz Moulinage Retorderie | Process for producing bulked yarn |
US3276095A (en) * | 1964-04-15 | 1966-10-04 | Chemcell 1963 Ltd | Yarn stretching and heating apparatus |
US3277228A (en) * | 1964-04-15 | 1966-10-04 | Chemical 1963 Ltd | Method of stretching yarn |
US3238592A (en) * | 1964-04-15 | 1966-03-08 | Chemcell 1963 Ltd | Device for heating and stretching yarn |
US3319047A (en) * | 1964-06-05 | 1967-05-09 | Gen Electric | Low thermal loss electric heater for synthetic yarns |
US3382656A (en) * | 1966-01-03 | 1968-05-14 | Chavanoz Moulinage Retorderie | False-twist frames and method for texturing synthetic filaments |
US3851150A (en) * | 1971-11-19 | 1974-11-26 | Foerderung Forschung Gmbh | Electrical resistance tubular heating conductor with axially varying power distribution |
US3946546A (en) * | 1973-04-19 | 1976-03-30 | Chavanoz S. A. | False twist texturing apparatus |
US3867767A (en) * | 1973-06-25 | 1975-02-25 | Xerox Corp | Preconditioner for paper stock |
US3942312A (en) * | 1973-10-19 | 1976-03-09 | Chavanoz S.A. | Machine for treating a textile thread by false twist |
US4851643A (en) * | 1987-07-09 | 1989-07-25 | Milliken Research Corporation | Draw block |
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