GB806532A - Process for drawing filaments - Google Patents
Process for drawing filamentsInfo
- Publication number
- GB806532A GB806532A GB3692455A GB3692455A GB806532A GB 806532 A GB806532 A GB 806532A GB 3692455 A GB3692455 A GB 3692455A GB 3692455 A GB3692455 A GB 3692455A GB 806532 A GB806532 A GB 806532A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pin
- filaments
- snubbing
- contact
- 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
- 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
- D02J1/225—Mechanical characteristics of stretching apparatus
-
- 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)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
Abstract
Synthetic linear polymer filaments are drawn while in contact with a heated snubbing pin having a diameter of at least 3 inches. The surface of the pin may be nitrided or of sandblasted chrome. Polyethylene terephthalate filaments may be drawn whilst in contact with a snubbing pin, the surface temperature of which is above 75 DEG but below 120 DEG C. Heat may be generated by the passage of the filaments over the pin, no extra heat being supplied to the pin. The filaments may be heated before reaching or after leaving the pin, e.g. by passage over a hot plate. More than one snubbing pin may be used in series, each having a diameter of at least 3 inches, the pins being closely spaced and preferably in a line, so that the filaments pass in a sinuous path over each pin with a contact angle of about 180 degrees. The temperature of additional pins is kept at least 5 DEG C. lower than that of the pin on which drawing takes place. In the methods which utilize one snubbing pin the filaments may be preheated by immersing the pin in a liquid, the temperature of which is at or near that of the snubbing surface. The liquid should be non-corrosive and a non-solvent for the filaments, e.g. water. To minimize heat losses from the large heated snubbing surface it may be made narrow or lagged on those parts not in contact with the filaments. Examples are given in which polyethylene terephthalate filaments from spinnerettes and yarns from bobbins are drawn in contact with snubbing pins of large diameter. Specification 543,466, [Group IV], is referred to.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BE553677D BE553677A (en) | 1955-12-23 | ||
| GB3692455A GB806532A (en) | 1955-12-23 | 1955-12-23 | Process for drawing filaments |
| FR1165995D FR1165995A (en) | 1955-12-23 | 1956-12-22 | Filament drawing process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3692455A GB806532A (en) | 1955-12-23 | 1955-12-23 | Process for drawing filaments |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB806532A true GB806532A (en) | 1958-12-31 |
Family
ID=10392283
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3692455A Expired GB806532A (en) | 1955-12-23 | 1955-12-23 | Process for drawing filaments |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE553677A (en) |
| FR (1) | FR1165995A (en) |
| GB (1) | GB806532A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3114999A (en) * | 1960-11-28 | 1963-12-24 | Monsanto Chemicals | Method and apparatus for treating and drawing synthetic filament yarns |
-
0
- BE BE553677D patent/BE553677A/xx unknown
-
1955
- 1955-12-23 GB GB3692455A patent/GB806532A/en not_active Expired
-
1956
- 1956-12-22 FR FR1165995D patent/FR1165995A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3114999A (en) * | 1960-11-28 | 1963-12-24 | Monsanto Chemicals | Method and apparatus for treating and drawing synthetic filament yarns |
Also Published As
| Publication number | Publication date |
|---|---|
| FR1165995A (en) | 1958-10-31 |
| BE553677A (en) |
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