GB1274854A - Improvements in or relating to the drawing and bulking of synthetic filament yarns - Google Patents
Improvements in or relating to the drawing and bulking of synthetic filament yarnsInfo
- Publication number
- GB1274854A GB1274854A GB33365/68A GB3336568A GB1274854A GB 1274854 A GB1274854 A GB 1274854A GB 33365/68 A GB33365/68 A GB 33365/68A GB 3336568 A GB3336568 A GB 3336568A GB 1274854 A GB1274854 A GB 1274854A
- Authority
- GB
- United Kingdom
- Prior art keywords
- yarn
- false
- partially
- draw
- drawn
- 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
- 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
- D02G1/0206—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 by false-twisting
- D02G1/0213—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 by false-twisting after drawing the yarn on the same machine
-
- 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
- D02G1/0206—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 by false-twisting
- D02G1/022—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 by false-twisting while simultaneously drawing the yarn
Abstract
1,274,854. False-twist crimped yarns; drawing. IMPERIAL CHEMICAL INDUSTRIES Ltd. 23 June, 1969 [12 July, 1968], No. 33365/ 68. Heading D1F. A continuous process for false-twist crimping a synthetic filament yarn comprises firstly submitting the undrawn yarn to a pre-drawing stage in which it is partially-drawn, and then feeding the partially-drawn yarn to a falsetwist crimping zone under such conditions of tension that drawing of the yarn is completed in or on heating means in the false-twist crimping zone. The yarn is preferably a polyamide yarn e.g. polyhexamethylene adipamide yarn. The ratio of the draw ratio in the crimping stage to the draw ratio in the pre-drawing stage lies in the range 0.3 to 0.8 or above 1.3. In a preferred embodiment, the undrawn yarn is partially drawn between a feed roll and a faster rotating draw roll, the draw being localised at a ceramic snubbing pin. The partially drawn yarn is fed directly from the draw roll to the false-twist crimping stage wherein the yarn is passed through or over a heater and to a rotary friction device, and the yarn is withdrawn at a greater speed than that at which it is fed to the crimper. The bulk may be developed in the yarn prior to or after being made into a fabric by means of heat treatment under conditions of controlled tension and temperature.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB33365/68A GB1274854A (en) | 1968-07-12 | 1968-07-12 | Improvements in or relating to the drawing and bulking of synthetic filament yarns |
ZA694451*A ZA694451B (en) | 1968-07-12 | 1969-06-23 | Improvements in or relating to the drawing and bulking of synthetic filament yarns |
US835714A US3601972A (en) | 1968-07-12 | 1969-06-23 | Drawing and bulking of synthetic filament yarns |
DE19691935389 DE1935389A1 (en) | 1968-07-12 | 1969-07-11 | Improvements in, or in connection with, the drawing and bulking of synthetic continuous yarns |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB33365/68A GB1274854A (en) | 1968-07-12 | 1968-07-12 | Improvements in or relating to the drawing and bulking of synthetic filament yarns |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1274854A true GB1274854A (en) | 1972-05-17 |
Family
ID=10351980
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB33365/68A Expired GB1274854A (en) | 1968-07-12 | 1968-07-12 | Improvements in or relating to the drawing and bulking of synthetic filament yarns |
Country Status (4)
Country | Link |
---|---|
US (1) | US3601972A (en) |
DE (1) | DE1935389A1 (en) |
GB (1) | GB1274854A (en) |
ZA (1) | ZA694451B (en) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3936999A (en) * | 1970-04-06 | 1976-02-10 | Teijin Ltd. | False twist-crimped polyester yarns production |
US3797221A (en) * | 1970-04-06 | 1974-03-19 | Teijin Ltd | False twist-crimped polyester yarns and process for their production |
US3771307A (en) * | 1971-08-24 | 1973-11-13 | Du Pont | Drawing and bulking polyester yarns |
SE392299B (en) * | 1971-08-24 | 1977-03-21 | Du Pont | PROCEDURE AND MEANS FOR MANUFACTURE OF YARN WITH FULL AND WIRE |
BE788423A (en) * | 1971-09-16 | 1973-01-02 | Snam Progetti | TWO-COMPONENT CONTINUOUS ACRYLIC FIBER INFLATED YARNS AND ITS MANUFACTURING METHOD |
DE2207849B2 (en) * | 1972-02-19 | 1976-04-01 | Metallgesellschaft Ag, 6000 Frankfurt | PROCESS FOR MANUFACTURING TEXTURED, MOLECULAR ORIENTED FEEDS FROM POLYESTER OR POLYAMIDE |
DE2211843A1 (en) * | 1972-03-11 | 1973-09-20 | Hoechst Ag | USE OF NON-STRETCHED POLYAETHYLENE TEREPHTHALATE FIBES |
JPS49132310A (en) * | 1972-10-09 | 1974-12-19 | ||
US3816994A (en) * | 1973-04-11 | 1974-06-18 | Burlington Industries Inc | False-twist texturing process with improved feed yarns and feed rates |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2671304A (en) * | 1949-09-13 | 1954-03-09 | Rowedder William | Spinning system |
GB777625A (en) * | 1955-01-28 | 1957-06-26 | Ici Ltd | Process for the manufacture of improved yarns |
US2890568A (en) * | 1956-06-19 | 1959-06-16 | British Celanese | Production of voluminous yarn |
GB815202A (en) * | 1956-08-04 | 1959-06-17 | Inventa Ag | Improvements relating to the production of crimped yarn of continuous filaments of synthetic linear polymers |
US3400194A (en) * | 1963-11-04 | 1968-09-03 | Du Pont | Process for making high-tenacity, low elongation industrial yarn |
NL129961C (en) * | 1963-11-12 | |||
US3457338A (en) * | 1964-09-21 | 1969-07-22 | Dow Chemical Co | Process for crimping polypropylene filaments |
GB1098545A (en) * | 1965-09-10 | 1968-01-10 | Ici Ltd | Low-torque, multifilament compact yarn |
US3474612A (en) * | 1967-08-10 | 1969-10-28 | British Nylon Spinners Ltd | Drawing and bulking of synthetic polymer |
US3435603A (en) * | 1967-10-30 | 1969-04-01 | American Enka Corp | Process and apparatus for producing torque in synthetic filaments,fibers and yarns |
-
1968
- 1968-07-12 GB GB33365/68A patent/GB1274854A/en not_active Expired
-
1969
- 1969-06-23 US US835714A patent/US3601972A/en not_active Expired - Lifetime
- 1969-06-23 ZA ZA694451*A patent/ZA694451B/en unknown
- 1969-07-11 DE DE19691935389 patent/DE1935389A1/en active Pending
Also Published As
Publication number | Publication date |
---|---|
DE1935389A1 (en) | 1970-08-27 |
US3601972A (en) | 1971-08-31 |
ZA694451B (en) | 1971-01-27 |
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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 |