GB598820A - Improvements in the drawing of filaments of synthetic linear polyamides - Google Patents
Improvements in the drawing of filaments of synthetic linear polyamidesInfo
- Publication number
- GB598820A GB598820A GB23504/45A GB2350445A GB598820A GB 598820 A GB598820 A GB 598820A GB 23504/45 A GB23504/45 A GB 23504/45A GB 2350445 A GB2350445 A GB 2350445A GB 598820 A GB598820 A GB 598820A
- Authority
- GB
- United Kingdom
- Prior art keywords
- filaments
- travel
- cooled
- heating tube
- hot
- 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
- 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
- D01D10/02—Heat treatment
-
- 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
- D01D5/12—Stretch-spinning methods
- D01D5/16—Stretch-spinning methods using rollers, or like mechanical devices, e.g. snubbing pins
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
- D01F6/58—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products
- D01F6/60—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from polyamides
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
- Artificial Filaments (AREA)
Abstract
<PICT:0598820/IV/1> In order to prevent the formation of crimp in synthetic linear polyamide filaments which have been hot drawn in a heating zone at a temperature of at least 80 DEG C. but below their melting point, the filaments are uniformly cooled as they progress in the same straight line path defined during their travel through the heating zone. During drawing the filaments are heated preferably by radiant heat but other means such as heated air, steam, hot liquids or molten alloys may also be employed. The uniform cooling is preferably effected by passing the filaments through a bath of cool water whereby they are cooled to a temperature below 50 DEG C. If desired, the cooled filaments may finally be subjected to a water- or heatsetting treatment. The treated filaments are particularly useful for the manufacture of bristles, and the synthetic linear polyamides of which they are made are of the general type described in Specification 461,236. In the examples, polyhexamethylene adipamide or polyhexamethylene sebacamide alone or modified with 10 per cent of a phenol-formaldehyde resin are hot-drawn between rolls 2 and 9, whilst they travel through an electrically-controlled radiant heating tube 3 heated to a temperature of 410 DEG or 500 DEG C. On leaving the heating tube 3 the filaments travel through a cold water trough 5 where they are uniformly cooled. The filaments are finally set by treatment with boiling water. If desired, the direction of travel of the filaments in the heating tube may be reversed one or more times.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US598820XA | 1944-09-15 | 1944-09-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB598820A true GB598820A (en) | 1948-02-26 |
Family
ID=22025896
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB23504/45A Expired GB598820A (en) | 1944-09-15 | 1945-09-12 | Improvements in the drawing of filaments of synthetic linear polyamides |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE464568A (en) |
| FR (1) | FR924420A (en) |
| GB (1) | GB598820A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999023912A2 (en) * | 1997-11-10 | 1999-05-20 | Braun Gmbh | Method for producing a bristle, especially for a toothbrush |
| EP3636808A1 (en) * | 2018-10-10 | 2020-04-15 | Evonik Operations GmbH | Stretched polyamide filaments |
| CN112955589A (en) * | 2018-10-17 | 2021-06-11 | 赢创运营有限公司 | Stretched aromatic polyethers |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE540943A (en) * | 1954-11-19 | |||
| DE1221396B (en) * | 1955-07-14 | 1966-07-21 | Deering Milliken Res Corp | Process for crimping threads or bundles of threads made of thermoplastic material |
-
0
- BE BE464568D patent/BE464568A/xx unknown
-
1945
- 1945-09-12 GB GB23504/45A patent/GB598820A/en not_active Expired
-
1946
- 1946-03-25 FR FR924420D patent/FR924420A/en not_active Expired
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999023912A2 (en) * | 1997-11-10 | 1999-05-20 | Braun Gmbh | Method for producing a bristle, especially for a toothbrush |
| WO1999023912A3 (en) * | 1997-11-10 | 1999-07-15 | Braun Gmbh | Method for producing a bristle, especially for a toothbrush |
| EP3636808A1 (en) * | 2018-10-10 | 2020-04-15 | Evonik Operations GmbH | Stretched polyamide filaments |
| WO2020074572A1 (en) | 2018-10-10 | 2020-04-16 | Evonik Operations Gmbh | Melt-drawn polyamide filaments |
| CN112955588A (en) * | 2018-10-10 | 2021-06-11 | 赢创运营有限公司 | Melt-drawn polyamide filaments |
| CN112955588B (en) * | 2018-10-10 | 2024-01-05 | 赢创运营有限公司 | Melt drawn polyamide filaments |
| CN112955589A (en) * | 2018-10-17 | 2021-06-11 | 赢创运营有限公司 | Stretched aromatic polyethers |
Also Published As
| Publication number | Publication date |
|---|---|
| FR924420A (en) | 1947-08-05 |
| BE464568A (en) |
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