GB1356662A - Heat-treatment of thermoplastic yarns - Google Patents
Heat-treatment of thermoplastic yarnsInfo
- Publication number
- GB1356662A GB1356662A GB3859771A GB3859771A GB1356662A GB 1356662 A GB1356662 A GB 1356662A GB 3859771 A GB3859771 A GB 3859771A GB 3859771 A GB3859771 A GB 3859771A GB 1356662 A GB1356662 A GB 1356662A
- Authority
- GB
- United Kingdom
- Prior art keywords
- yarn
- path
- yarns
- heat
- aug
- 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
- 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
- D01D5/28—Formation of filaments, threads, or the like while mixing different spinning solutions or melts during the spinning operation; Spinnerette packs therefor
- D01D5/30—Conjugate filaments; Spinnerette packs therefor
-
- 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
- D01D10/00—Physical treatment of artificial filaments or the like during manufacture, i.e. during a continuous production process before the filaments have been collected
- D01D10/04—Supporting filaments or the like during their treatment
- D01D10/0436—Supporting filaments or the like during their treatment while in continuous movement
- D01D10/0481—Supporting filaments or the like during their treatment while in continuous movement the filaments passing through a tube
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
Abstract
1356662 Heat treating yarns E I DU PONT DE NEMOURS & CO 17 Aug 1971 [17 Aug 1970] 38597/71 Heading D1F A thermoplastic yarn is heat treated by feeding it along a path intersecting a surface oriented to form an angle between the path and the surface normal equal to or less than 15, and preferably equal to or less than 5, and withdrawing the yarn from the proximity of the surface at a rate sufficient to prevent both yarn accumulation and the formation of yarn loops and crimps. Drawn yarn 13, Fig. 1, of bi-component filaments, is heat treated to effect differential shrinkage by feeding it in a stream of heated gas through and from chamber 18 in path 20 perpendicular to the outer surface of cylinder 110, the yarn being withdrawn from the surface along path 30. Part of the gas stream may be deflected from path 20 by the coanda effect of member 19. It is stated that path 20 may terminate in the air layer at the surface. The yarn may be allowed to follow the cylinder surface, Fig. 6, before withdrawal. The surface may alternatively be flat or concave, and may be of metal, glass, paper, wood or plastic. Surfaces of a liquid, e.g. water or mercury, may be used. The surface may be 3 to 16 inches from the chamber exit. The yarn may be overfed into the gas stream, e.g. fed at a velocity exceeding 1000 yards per minute. A plurality of yarns may be fed in parallel to the surface. The heat treatment of nylon co-polymer yarns is exemplified.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US6421970A | 1970-08-17 | 1970-08-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1356662A true GB1356662A (en) | 1974-06-12 |
Family
ID=22054372
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3859771A Expired GB1356662A (en) | 1970-08-17 | 1971-08-17 | Heat-treatment of thermoplastic yarns |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US3662440A (en) |
| JP (1) | JPS5112731B1 (en) |
| CA (1) | CA1013524A (en) |
| FR (1) | FR2104419A5 (en) |
| GB (1) | GB1356662A (en) |
| IT (1) | IT955058B (en) |
| NL (1) | NL7111281A (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3748844A (en) * | 1971-08-04 | 1973-07-31 | Du Pont | Polyester yarn |
| US4064605A (en) * | 1975-08-28 | 1977-12-27 | Toyobo Co., Ltd. | Method for producing non-woven webs |
| US4020139A (en) * | 1976-04-01 | 1977-04-26 | E. I. Du Pont De Nemours And Company | Process for melt spinning a plurality of eccentric sheath-core filaments |
| US5240667A (en) * | 1991-11-13 | 1993-08-31 | E. I. Du Pont De Nemours And Company | Process of making high strength, low shrinkage polyamide yarn |
| US5731045A (en) * | 1996-01-26 | 1998-03-24 | Southwest Research Institute | Application of diamond-like carbon coatings to cobalt-cemented tungsten carbide components |
| US5725573A (en) * | 1994-03-29 | 1998-03-10 | Southwest Research Institute | Medical implants made of metal alloys bearing cohesive diamond like carbon coatings |
| US5780119A (en) * | 1996-03-20 | 1998-07-14 | Southwest Research Institute | Treatments to reduce friction and wear on metal alloy components |
| WO1997043117A1 (en) | 1996-05-16 | 1997-11-20 | Lockheed Martin Energy Systems, Inc. | Low temperature material bonding technique |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2829420A (en) * | 1953-05-12 | 1958-04-08 | American Enka Corp | Method and apparatus for bulking yarn |
| US3105349A (en) * | 1954-05-28 | 1963-10-01 | Celanese Corp | Method and apparatus for producing novelty yarn |
| LU35855A1 (en) * | 1957-04-01 | |||
| US2869967A (en) * | 1957-08-23 | 1959-01-20 | Du Pont | Bulky yarn |
| US3244785A (en) * | 1962-12-31 | 1966-04-05 | Du Pont | Process for producing a composite sheath-core filament |
| US3558760A (en) * | 1965-06-18 | 1971-01-26 | Du Pont | Process for spinning two component polyamide filaments |
-
1970
- 1970-08-17 US US64219A patent/US3662440A/en not_active Expired - Lifetime
-
1971
- 1971-08-05 CA CA119,942A patent/CA1013524A/en not_active Expired
- 1971-08-16 NL NL7111281A patent/NL7111281A/xx unknown
- 1971-08-17 FR FR7129946A patent/FR2104419A5/fr not_active Expired
- 1971-08-17 JP JP46062091A patent/JPS5112731B1/ja active Pending
- 1971-08-17 IT IT27576/71A patent/IT955058B/en active
- 1971-08-17 GB GB3859771A patent/GB1356662A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR2104419A5 (en) | 1972-04-14 |
| JPS5112731B1 (en) | 1976-04-22 |
| US3662440A (en) | 1972-05-16 |
| NL7111281A (en) | 1972-02-21 |
| DE2141232A1 (en) | 1972-02-24 |
| DE2141232B2 (en) | 1976-09-16 |
| IT955058B (en) | 1973-09-29 |
| CA1013524A (en) | 1977-07-12 |
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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 |