GB1293119A - Process for producing torque-stretch yarn - Google Patents
Process for producing torque-stretch yarnInfo
- Publication number
- GB1293119A GB1293119A GB27056/71A GB2705671A GB1293119A GB 1293119 A GB1293119 A GB 1293119A GB 27056/71 A GB27056/71 A GB 27056/71A GB 2705671 A GB2705671 A GB 2705671A GB 1293119 A GB1293119 A GB 1293119A
- Authority
- GB
- United Kingdom
- Prior art keywords
- yarn
- fluid
- jet
- torque
- false
- 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
Links
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
- D02J1/00—Modifying the structure or properties resulting from a particular structure; Modifying, retaining, or restoring the physical form or cross-sectional shape, e.g. by use of dies or squeeze rollers
- D02J1/22—Stretching or tensioning, shrinking or relaxing, e.g. by use of overfeed and underfeed apparatus, or preventing stretch
- D02J1/229—Relaxing
-
- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
- D02G1/02—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by twisting, fixing the twist and backtwisting, i.e. by imparting false twist
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
Abstract
1293119 Treating yarn E I DU PONT DE NEMOURS & CO 19 April 1971 [15 April 1970] 27056/71 Heading D1F A process for producing torque-stretch yarn in a continuous false-twisting operation, comprises (1) feeding a drawn yarn of thermoplastic polymer, at uniform speed, to a treatment zone including a symmetrical jet stream of hot fluid and a torque jet of cool fluid, (2) passing the yarn, in a false-twist configuration, along a straight line of travel through the treatment zone, first along the flow axis of the jet stream to plasticize the yarn and then along the vortex axis of the torque jet to false twist and deplasticize the yarn, and (3) withdrawing the yarn from the treatment zone with the false-twist configuration removed, at a uniform speed selected to provide a uniform tension between the jet stream and torque jet with 0.3 or 1.5 gms total tension and at least 0.015 gm./ denier. The fluid-torque jet may be of the type shown in Fig. 2 wherein a body 50 is provided with pipe-means 51 for injecting a pressurised cool fluid. A smaller bore 53 continues from bore 52. A hole 60 extends through the jet and has an open side communication with 53. The hole 60 may be in disc 59 to which is provided a handle 58 for rotation of the disc so that hole 60 communicates with slot 56 for easy string-up with yarn. When hole 60 is in communication with bore 53, pressurized fluid forms a high-velocity swirl in direct contact with the yarn. The treatment zone also includes means for contacting the yarn with a symmetrical jet stream of hot fluid, a suitable means being shown in Fig. 3 wherein a pressurized fluid enters the means at opening 67 and passes over heater 66, the heated fluid then contacting the yarn 10 in the annular opening 62. A thermocycle may be provided in the plenum 63 to regulate the temperature to which the fluid is heated.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US2858370A | 1970-04-15 | 1970-04-15 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1293119A true GB1293119A (en) | 1972-10-18 |
Family
ID=21844248
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB27056/71A Expired GB1293119A (en) | 1970-04-15 | 1971-04-19 | Process for producing torque-stretch yarn |
Country Status (8)
Country | Link |
---|---|
US (1) | US3608299A (en) |
BE (1) | BE765704A (en) |
CA (1) | CA938179A (en) |
DE (1) | DE2115185A1 (en) |
FR (1) | FR2089554A5 (en) |
GB (1) | GB1293119A (en) |
IT (1) | IT941397B (en) |
NL (1) | NL7104913A (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4159617A (en) * | 1969-11-17 | 1979-07-03 | Fiber Industries, Inc. | Resilient polyester fibers |
DE2210272A1 (en) * | 1972-03-03 | 1973-09-13 | Zinser Textilmaschinen Gmbh | STRETCH OR SHRINK DEVICE |
US4031692A (en) * | 1972-07-26 | 1977-06-28 | Fiber Industries, Inc. | Novel hosiery yarn |
US3824778A (en) * | 1972-09-25 | 1974-07-23 | Burlington Industries Inc | Heating procedure in a false twist texturizing process |
US3858387A (en) * | 1973-07-02 | 1975-01-07 | Du Pont | Polyamide feed yarn for false-twist texturing, process of false-twist texturing, and product thereof |
US4038811A (en) * | 1976-08-31 | 1977-08-02 | Joan Fabrics Corporation | Apparatus for continuously drawing and texturing core and effect yarns |
BRPI0814657A2 (en) * | 2007-07-21 | 2015-02-18 | Diolen Ind Fibers Bv | METHOD FOR WIRING A MULTIFILLATION YARN, POLYESTER MULTIFILLATION YARN, AND NECKLES NOT IMMERSE AND IMMERSE. |
-
1970
- 1970-04-15 US US28583A patent/US3608299A/en not_active Expired - Lifetime
-
1971
- 1971-03-29 DE DE19712115185 patent/DE2115185A1/en active Pending
- 1971-04-05 CA CA109658A patent/CA938179A/en not_active Expired
- 1971-04-13 FR FR7112921A patent/FR2089554A5/fr not_active Expired
- 1971-04-13 IT IT23082/71A patent/IT941397B/en active
- 1971-04-13 NL NL7104913A patent/NL7104913A/xx unknown
- 1971-04-14 BE BE765704A patent/BE765704A/en unknown
- 1971-04-19 GB GB27056/71A patent/GB1293119A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
FR2089554A5 (en) | 1972-01-07 |
BE765704A (en) | 1971-08-30 |
DE2115185A1 (en) | 1971-11-04 |
US3608299A (en) | 1971-09-28 |
CA938179A (en) | 1973-12-11 |
NL7104913A (en) | 1971-10-19 |
IT941397B (en) | 1973-03-01 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PCNP | Patent ceased through non-payment of renewal fee |