GB1444319A - Process for the production of a multifil textured yarn - Google Patents
Process for the production of a multifil textured yarnInfo
- Publication number
- GB1444319A GB1444319A GB4998374A GB4998374A GB1444319A GB 1444319 A GB1444319 A GB 1444319A GB 4998374 A GB4998374 A GB 4998374A GB 4998374 A GB4998374 A GB 4998374A GB 1444319 A GB1444319 A GB 1444319A
- Authority
- GB
- United Kingdom
- Prior art keywords
- filaments
- tow
- polymers
- stretched
- filament
- 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
- D02G1/0246—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 at least some of the filaments being simultaneously broken or cut, e.g. by stretching or abrading
-
- 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
- D01D5/082—Melt spinning methods of mixed yarn
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
Abstract
1444319 Producing crimpable tows BARMAG BARMER MASCHINENFABRIK AG 19 Nov 1974 49983/74 Heading B5B [Also in Division D1] A tow of filaments is produced by meltspinning two or more polymers into filaments under such conditions that the maximum ratio that the filaments of any of the polymers can be stretched to without breaking is 2À5. The tow of filaments is stretched at a ratio such that the filaments of at least one of the polymers are stretched beyond their elastic limit, optionally to beyond their breaking point (in which case fibres are formed from these filaments). At least one class of filament must remain unbroken, however. The tow may comprise either conjugate filaments with the filaments of one polymer being stuck to those of another, preferably as sheath and core, or separate filaments, each filament containing only one polymer, or a mixture of both. Yarns produced from such tows have an inherent tendency to crimp. This tendency is enhanced, however, and the yarn given greater cohesion, if the tow is false twisted, preferably simultaneously with the stretching. The fracture of at least one of the filament types may be assisted by passing the tow over a toothed wheel, such as is illustrated in Fig. 4, during stretching. Contact of the filaments with the teeth produces weak points at which they are more likely to break and so produce staple lengths of the weaker filaments. The filaments are preferably given the high degree of orientation required by withdrawing them from the spinneret at high rates, such as above 2500 metres/minute, preferably 2700 to 5000 m./min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB4998374A GB1444319A (en) | 1974-11-19 | 1974-11-19 | Process for the production of a multifil textured yarn |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB4998374A GB1444319A (en) | 1974-11-19 | 1974-11-19 | Process for the production of a multifil textured yarn |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1444319A true GB1444319A (en) | 1976-07-28 |
Family
ID=10454213
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4998374A Expired GB1444319A (en) | 1974-11-19 | 1974-11-19 | Process for the production of a multifil textured yarn |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1444319A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1788127A1 (en) * | 2004-09-03 | 2007-05-23 | Teijin Fibers Limited | Composite fiber |
| CN103060979A (en) * | 2012-08-09 | 2013-04-24 | 绍兴文理学院 | Single-spinneret-plate binary skin-core-type composite-spinning multiple-different-yarn production process |
-
1974
- 1974-11-19 GB GB4998374A patent/GB1444319A/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1788127A1 (en) * | 2004-09-03 | 2007-05-23 | Teijin Fibers Limited | Composite fiber |
| EP1788127A4 (en) * | 2004-09-03 | 2008-10-29 | Teijin Fibers Ltd | Composite fiber |
| US7654071B2 (en) | 2004-09-03 | 2010-02-02 | Teijin Fibers Limited | Composite fibers |
| CN103060979A (en) * | 2012-08-09 | 2013-04-24 | 绍兴文理学院 | Single-spinneret-plate binary skin-core-type composite-spinning multiple-different-yarn production process |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |