GB1105029A - Improvements in or relating to methods and apparatus for drawing synthetic polymer tapes and products thus obtained - Google Patents
Improvements in or relating to methods and apparatus for drawing synthetic polymer tapes and products thus obtainedInfo
- Publication number
- GB1105029A GB1105029A GB30659/65A GB3065965A GB1105029A GB 1105029 A GB1105029 A GB 1105029A GB 30659/65 A GB30659/65 A GB 30659/65A GB 3065965 A GB3065965 A GB 3065965A GB 1105029 A GB1105029 A GB 1105029A
- Authority
- GB
- United Kingdom
- Prior art keywords
- rollers
- tapes
- feed
- series
- intermediate rollers
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C55/00—Shaping by stretching, e.g. drawing through a die; Apparatus therefor
- B29C55/02—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets
- B29C55/04—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets uniaxial, e.g. oblique
- B29C55/06—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets uniaxial, e.g. oblique parallel with the direction of feed
- B29C55/065—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets uniaxial, e.g. oblique parallel with the direction of feed in several stretching steps
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
Abstract
1,105,029. Films and tapes. SAINT FRERES. 19 July, 1965 [14 June, 1965], No. 30659/65. Heading B5B. Synthetic polymer tapes are drawn between a series of feed rollers 2, 3 and a series of withdrawal rollers 11, 12 driven at a peripheral velocity higher than that of the said feed rollers, the ratio of the peripheral velocities of said feed and withdrawal rollers providing the overall drawing rate, characterized in that, between said series of feed rollers and said series of withdrawal rollers, said tapes are caused to pass over a series of intermediate heating rollers 6, 7, 8, 9, 10, brought to a temperature below the softening point of the synthetic polymer to be drawn, up to not less than 10‹ C. below this softening point in the case of polyolefines, said intermediate rollers being driven at a peripheral velocity increasing gradually from one roller to the next roller in the tape feed direction, and lying between that of said feed rollers and that of said withdrawal rollers, the ratio of the peripheral velocities of any pair of adjacent intermediate rollers being less than 2: 1. The gradual drawing of the tapes may be controlled by changing the number of said intermediate rollers and adjusting the speed ratio on the successive rollers. The greater the number of intermediate rollers and the lower the partial drawing rates, the more gradual the drawing effect. Thus in the case of polyolefines, at least five intermediate rollers may be used. Other synthetic polymers which may be used include polyamides, polyesters and polyvinyl resins. Preferably, the intermediate rollers are disposed in staggered relationship and the tapes caused to follow a zigzag path while contacting said intermediate rollers. Suitably an extruded film is cut into tapes or strips as it is delivered from the series of feed rollers 2, 3 by cutting device 4. The intermediate rollers may be heated to temperatures increasing gradually from one roller to the next, so as gradually to heat the tape. Suitably the intermediate rollers are heated electrically or by circulation of a hot fluid in contra-current to the direction of tape feed. Tapes having a thickness of less than 0.040 mm. and having a width to thickness ratio greater than 50 and especially above 150 may be made by the method of the invention.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR20641A FR1450585A (en) | 1965-06-14 | 1965-06-14 | Method and apparatus for drawing synthetic polymer tapes and products obtained |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1105029A true GB1105029A (en) | 1968-03-06 |
Family
ID=8581850
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB30659/65A Expired GB1105029A (en) | 1965-06-14 | 1965-07-19 | Improvements in or relating to methods and apparatus for drawing synthetic polymer tapes and products thus obtained |
Country Status (6)
| Country | Link |
|---|---|
| BE (1) | BE682494A (en) |
| ES (1) | ES328230A1 (en) |
| FR (1) | FR1450585A (en) |
| GB (1) | GB1105029A (en) |
| LU (1) | LU51322A1 (en) |
| NL (1) | NL6608248A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2328639A1 (en) * | 1973-06-06 | 1975-01-02 | Barmag Barmer Maschf | METHOD AND APPARATUS FOR THE PRODUCTION OF LOW-SHRINK FILM TAPES |
| EP0049206A1 (en) * | 1980-09-26 | 1982-04-07 | Crown Zellerbach Corporation | Method of improving the flatness of compression rolled plastic film |
| US7540731B2 (en) * | 2003-03-31 | 2009-06-02 | Darlet Marchante Technologies S.A. | Longitudinal film drawing device |
| CN104328520A (en) * | 2014-09-23 | 2015-02-04 | 苏州瑞邦塑胶有限公司 | Flat membrane wire drawing method of plastic |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107012555A (en) * | 2017-05-11 | 2017-08-04 | 武汉纺织大学 | A kind of resultant yarn method of type film silkization |
-
1965
- 1965-06-14 FR FR20641A patent/FR1450585A/en not_active Expired
- 1965-07-19 GB GB30659/65A patent/GB1105029A/en not_active Expired
-
1966
- 1966-06-11 ES ES0328230A patent/ES328230A1/en not_active Expired
- 1966-06-14 LU LU51322A patent/LU51322A1/xx unknown
- 1966-06-14 BE BE682494D patent/BE682494A/xx unknown
- 1966-06-14 NL NL6608248A patent/NL6608248A/xx unknown
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2328639A1 (en) * | 1973-06-06 | 1975-01-02 | Barmag Barmer Maschf | METHOD AND APPARATUS FOR THE PRODUCTION OF LOW-SHRINK FILM TAPES |
| EP0049206A1 (en) * | 1980-09-26 | 1982-04-07 | Crown Zellerbach Corporation | Method of improving the flatness of compression rolled plastic film |
| US7540731B2 (en) * | 2003-03-31 | 2009-06-02 | Darlet Marchante Technologies S.A. | Longitudinal film drawing device |
| CN104328520A (en) * | 2014-09-23 | 2015-02-04 | 苏州瑞邦塑胶有限公司 | Flat membrane wire drawing method of plastic |
Also Published As
| Publication number | Publication date |
|---|---|
| LU51322A1 (en) | 1966-08-16 |
| ES328230A1 (en) | 1967-04-01 |
| FR1450585A (en) | 1966-06-24 |
| BE682494A (en) | 1966-11-14 |
| NL6608248A (en) | 1966-12-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS5458608A (en) | Controlling method for sheet temperature in continuous heating of strip | |
| GB1372782A (en) | Method and apparatus for slitting a film | |
| GB1313388A (en) | Flat electric cables | |
| GB1105029A (en) | Improvements in or relating to methods and apparatus for drawing synthetic polymer tapes and products thus obtained | |
| US4521265A (en) | Process for preparing laminated plate | |
| GB1490126A (en) | Process for producing corrugated thermoplastic sheet | |
| US3132375A (en) | Method and apparatus for stretching beaded-edge films | |
| FR2571656B1 (en) | METHOD AND DEVICE FOR CONTINUOUSLY DRAWING A PLASTIC FILM | |
| GB1216176A (en) | Process for the heat treatment of biaxially stretched thermoplastic resin films | |
| GB1069265A (en) | Method and apparatus for stretching a thermoplastic film in a non-longitudinal direction | |
| GB1481130A (en) | Process for producing polymeric films from crystallizing polyesters | |
| GB1458301A (en) | Apparatus for processing thin plastics film | |
| NO862492D0 (en) | HEAT TREATMENT OF THERMOPLASTIC PLATE MATERIALS FOR THERMO FORMATION. | |
| US2596128A (en) | Method and apparatus for producing fine fibers | |
| GB1475571A (en) | Method of and a machine for producing low-shrinkage ribbons of film | |
| GB1421825A (en) | Method and apparatus for extruding a backing layer onto channel cloth | |
| US4185068A (en) | Process for preparing a web of film prior to winding it into a wound roll | |
| ES8301745A1 (en) | Process and apparatus for continuously applying reinforcing tapes from synthetic resin, on the longitudinal sides of plastic sheets | |
| US3482277A (en) | Feeding and guiding device for plastic strips and cables | |
| SU407292A1 (en) | METHOD OF STABILIZATION OF TEMPERATURE IN THE FORMATING HEAD OF EXTRUDER | |
| GB877514A (en) | Apparatus for curing tyres | |
| FR2329424A1 (en) | Plastic foil preheating device, for deep drawing cups - formed by a pair of endless belts engaging the foil between them as foil is fed through heating zone | |
| US4071589A (en) | Quenching of polymeric film | |
| GB1106729A (en) | Improvements relating to the manufacture of cemented lap side seam container bodies | |
| JPS5536061A (en) | Roller leveler |