GB1180329A - Spin-Drawing Process for Polyester Filaments - Google Patents
Spin-Drawing Process for Polyester FilamentsInfo
- Publication number
- GB1180329A GB1180329A GB4185168A GB4185168A GB1180329A GB 1180329 A GB1180329 A GB 1180329A GB 4185168 A GB4185168 A GB 4185168A GB 4185168 A GB4185168 A GB 4185168A GB 1180329 A GB1180329 A GB 1180329A
- Authority
- GB
- United Kingdom
- Prior art keywords
- roller
- elongation
- heated
- filaments
- 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
- 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
- D01F6/62—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from polyesters
-
- 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
- D02J1/228—Stretching in two or more steps, with or without intermediate steps
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Artificial Filaments (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
Abstract
1,180,329. Spin-drawing polyester filaments. FARBWERKE HOECHST A.G. 3 Sept., 1968 [31 Aug., 1967], No. 41851/68. Heading B5B. Filaments of a linear polyester are produced by a spin-drawing process which comprises spinning filaments of the linear polyester, preferably polyethylene terephthalate, subjecting them at a temperature within the range of from 10‹ to 120‹ C. to a permanent elongation corresponding to a value on that section of the stress-strain curve of the filaments in which the curve passes from a linear gradient to a section in which drawing takes place without a corresponding increase in the stress, and subsequently drawing the filaments. In a preferred embodiment, Fig. 2b, the apparatus comprises a spinning device, a delivery roller 2 which rotates at a rate which corresponds to the rate of spinning, and elongation- and draw-rollers, 9 and 7, in which the elongation roller 9 is a coaxial two-step roller whose diameter ratio corresponds to the ratio of elongation of the desired permanent elongation. The step roller is preferably heated to the drawing temperature, so that the elongation takes place at above the second order transition temperature of the filamentary material. If the step roller is not heated then the drawing is carried out between heated roller 7 and a following draw-off roller which draws the filament at a higher speed. In another embodiment the step roller is replaced by two rollers and the filament is preferably elongated between these two rollers when heated and is subsequently drawn over unheated roller 7. If one heated roller is omitted then the elongation takes place between unheated delivery roller 2 and the heated roller. In this case, the filament is elongated below the second order transition temperature.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEF0053370 | 1967-08-31 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1180329A true GB1180329A (en) | 1970-02-04 |
Family
ID=7106247
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB4185168A Expired GB1180329A (en) | 1967-08-31 | 1968-09-03 | Spin-Drawing Process for Polyester Filaments |
Country Status (9)
Country | Link |
---|---|
AT (1) | AT293597B (en) |
BE (1) | BE720290A (en) |
CH (1) | CH487267A (en) |
DE (1) | DE1660327B2 (en) |
FR (1) | FR1579241A (en) |
GB (1) | GB1180329A (en) |
LU (1) | LU56747A1 (en) |
NL (1) | NL6812238A (en) |
RO (1) | RO68730A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3026520C2 (en) * | 1980-07-12 | 1985-03-21 | Davy McKee AG, 6000 Frankfurt | Process for the production of high-strength technical yarns by spinning draws |
-
1967
- 1967-08-31 DE DE19671660327 patent/DE1660327B2/en not_active Ceased
-
1968
- 1968-08-21 LU LU56747A patent/LU56747A1/xx unknown
- 1968-08-28 NL NL6812238A patent/NL6812238A/xx unknown
- 1968-08-29 AT AT841468A patent/AT293597B/en not_active IP Right Cessation
- 1968-08-29 CH CH1292868A patent/CH487267A/en not_active IP Right Cessation
- 1968-08-30 FR FR164681A patent/FR1579241A/fr not_active Expired
- 1968-08-31 RO RO6857675A patent/RO68730A/en unknown
- 1968-09-02 BE BE720290A patent/BE720290A/xx unknown
- 1968-09-03 GB GB4185168A patent/GB1180329A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
NL6812238A (en) | 1969-03-04 |
RO68730A (en) | 1981-06-26 |
CH487267A (en) | 1970-03-15 |
FR1579241A (en) | 1969-08-22 |
DE1660327B2 (en) | 1976-01-22 |
LU56747A1 (en) | 1970-02-23 |
DE1660327A1 (en) | 1972-07-27 |
BE720290A (en) | 1969-03-03 |
AT293597B (en) | 1971-10-11 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |