DE703917C - Process for stretching films or tapes made of organic thermoplastic materials - Google Patents
Process for stretching films or tapes made of organic thermoplastic materialsInfo
- Publication number
- DE703917C DE703917C DE1936I0055860 DEI0055860D DE703917C DE 703917 C DE703917 C DE 703917C DE 1936I0055860 DE1936I0055860 DE 1936I0055860 DE I0055860 D DEI0055860 D DE I0055860D DE 703917 C DE703917 C DE 703917C
- Authority
- DE
- Germany
- Prior art keywords
- stretching
- foils
- tapes
- thermoplastic materials
- tapes made
- 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
-
- 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
- B29C55/10—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets multiaxial
- B29C55/12—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets multiaxial biaxial
-
- 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
- B29C55/10—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets multiaxial
- B29C55/12—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets multiaxial biaxial
- B29C55/16—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets multiaxial biaxial simultaneously
-
- 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
- B29C55/10—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets multiaxial
- B29C55/12—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets multiaxial biaxial
- B29C55/16—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets multiaxial biaxial simultaneously
- B29C55/165—Apparatus therefor
-
- 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
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
- B29C35/08—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
- Laminated Bodies (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Description
Verfahren zum Strecken von Folien oder Bändern aus organischen thermoplastischen Massen Im Hauptpatent 689 539 wird ein Verfahren zum Strecken von Folien oder Bändern aus organischen, thermoplastischen Massen beschrieben, bei dem man von flüchtigen Lösungsmitteln praktisch freie Folien oder Bänder über eine oder.mehrere geheizte .Flächen ohne Anwendung von Druck derart zieht, daß die Folien oder Bänder auf der geheizten Fläche oder unmittelbar dahinter gereckt werden., In weiterer Ausbildung des Verfahrens des Hauptpatents werden gleichfalls sehr dünne Folien oder Bänder erhalten, wenn die Folien oder Bänder frei tragend, also ohne Berührung mit einer Fläche an kurzen, hocherhitzten, wärmestrahlenden Flächen unter starker Strekkung vorbeigezogen werden.Process for stretching foils or tapes from organic thermoplastic masses In the main patent 689 539 a process for stretching foils or tapes from organic thermoplastic masses is described in which one or more heated surfaces are practically free of volatile solvents without the application of pressure pulls in such a way that the foils or tapes are stretched on the heated surface or immediately behind it., In a further development of the method of the main patent, very thin foils or tapes are also obtained if the foils or tapes are cantilevered, i.e. without contact be pulled past short, highly heated, heat-radiating surfaces with a strong stretch.
In der beiliegenden Zeichnung ist eine Vorrichtung zur Durchführung des Verfahrens dargestellt.In the accompanying drawing is a device for implementation of the procedure.
Die Vorratsrolle i trägt die Folie 2, die durch das Zubringerwalzenpaar 3, 3a bei einer bestimmten Geschwindigkeit einer hocherhitzten, wärmestrahlenden Fläche zugeführt wird. Diese mrd von einem einige Zentimeter hohen elektrischen Heizkörper 4. gebildet. der, wie aus Fig. ia ersichtlich, die Folie nahezu umschließt. Beim Durchlaufen dieser wärmestrahlenden Zone wird die Folie plastisch und in diesem Zustand durch das Abzugswalzenpaar 5, 5a, das eine gegen das Walzenpaar 3, 3a erhöhte Umfangsgeschwindigkeit hat, gereckt und schließlich auf die Rolle 6 aufgewickelt.The supply roll i carries the film 2, which is passed through the feed roller pair 3, 3a at a certain speed of a highly heated, heat radiating Area is supplied. This mrd from an electric a few centimeters high 4. Radiator formed. which, as can be seen from Fig. ia, almost encloses the film. When passing through this heat radiating zone, the film becomes plastic and in this State by the pair of take-off rollers 5, 5a, which raised one against the pair of rollers 3, 3a Circumferential speed has stretched and finally wound onto the roll 6.
Die Anordnung kann vielseitig abgeändert werden. So können als wärmestrahlende
Flächen auch einfache elektrisch geheizte Widerstandsdrähte, z. B. in Spiralform,
Verwendung finden. Die wärmestrahlenden Flächenkönnen auch durch Flammen geheizt
werden. Das Verfahren kann auch gemeinsam reit dem Verfahren des Hauptpatents angewendet
werden, wobei die hocherhitzten, wärmestrahlenden Flächen vor oder hinter geheizten
Zylindern, über die die Folien gezogen werden, angeordnet sind., In Fig.2 ist eine
solche Anordnung dargestellt. Hier läuft die Folie 2 zunächst über den geheizten
Zylinder q.c, auf dem sie bereits thermoplastisch wird, und anschließend an der
wärmestrahlenden, unmittelbar dahinter- angeordneten elektrisch geheizten Fläche
vorbei. Diese Anordnung ist besonders günstig ibei Verarbeitung von starken. Folien.
Die Folie kann auch über eine geheizte Fläche, beispielsweise einen Zylinder,
Lind
gleichzeitig an einer hocherhitzten, wärmestrahlenden Fläche vorbeigezogen werden,
und es können auch mehrere wärmestrahlende
Die hocherhitzte, wärmestrahlende Fläche ist möglichst kurz angeordnet, und die Folien, Bänder o. dgl. werden während des Reckens oder möglichst bald nach dem Recken aus der heißen Zone entfernt.The highly heated, heat radiating surface is arranged as short as possible, and the films, tapes or the like. During the stretching or as soon as possible after removed from the hot zone after stretching.
Die erhaltenen Folien, Bänder o. dgl. zeigen über den ganzen Querschnitt, selbst an den Rändern, eine sehr gute Gleichmäßigkeit. Durch nachfolgendes Strecken, besonders bei mäßig erhöhten Temperaturen, kann die Reißfestigkeit der Erzeugnisse, allerdings meist unter Verringerung der Bruchdehnung, noch stark erhöht werden. Das Recken der Folien kann entsprechend dem Verfahren des Hauptpatents gleichzeitig oder hintereinander in der Länge wie auch in der Breite.erfolgen.The resulting films, tapes or the like show over the entire cross-section, even at the edges, very good evenness. By subsequent stretching, especially at moderately elevated temperatures, the tear resistance of the products, however, usually with a reduction in the elongation at break, can still be greatly increased. The stretching of the films can be carried out simultaneously according to the method of the main patent or one after the other in length as well as in width.
Beispiel i Eine gewalzte Folie aus einem Mischpolymerisat aus So o'o Vinylchlorid und 20 Acrylsäuremethylester von o, i 7 mm Stärke wird durch ein Walzenpaar, das als Zubringervorrichtung dient, mit q.o cm. Geschwindigkeit in der Minute zwischen zwei rotglühende Flächen von etwa q. cm Höhe gezogen, die zu E beiden Seiten der Folie mit einem Abstand an etwa 2,5 cm angeordnet sind. Die Folie eht innerhalb dieser heißen Zone in einen zähflüssigen Zustand über und wird in diesem Zustand durch eine. Abzugswalze mit 12 m Geschwindigkeit in der Minute abgezogen. Die so erhaltenen Folien haben eine Stärke von 0,03 mm und eine glänzende Oberfläche. Beispiel 2 Eine gewalzte Folie aus Polyvinylchlorid von etwa 0,o9 mm Stärke wird mit 6o cm Geschwindigkeit in der Minute zwischen die wärmestrahlenden Flächen gemäß Beispiel geführt und mit einer Geschwindigkeit von etwa z o m in der Minute abgezogen. Die gereckte Folie hat eine Stärke von etwa 0,015 mm. Durch nachfolgendes Strecken in einer Richtung bei etwa '3o' kann die Reißfestigkeit der Folie in der Streckrichtung um etwa das 3fache erhöht werden.EXAMPLE i A rolled film made from a copolymer of So o'o vinyl chloride and acrylic acid methyl ester o, i 7 mm thick is passed through a pair of rollers, which serve as a feeder, with qo cm. Speed per minute between two red-hot surfaces of about q. cm height, which are arranged on both sides of the film with a distance of about 2.5 cm. The film turns into a viscous state within this hot zone and is in this state by a. Pull-off roller withdrawn at a speed of 12 m per minute. The films obtained in this way have a thickness of 0.03 mm and a glossy surface. EXAMPLE 2 A rolled film of polyvinyl chloride about 0.09 mm thick is passed between the heat-radiating surfaces according to the example at a speed of 60 cm per minute and pulled off at a speed of about ten per minute. The stretched film has a thickness of about 0.015 mm. Subsequent stretching in one direction at around '3o' can increase the tear strength of the film in the stretching direction by approximately 3 times.
Claims (1)
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1936I0055383 DE689539C (en) | 1936-07-01 | 1936-07-01 | Process for stretching films or tapes made of organic thermoplastic materials |
GB21565/36A GB479492A (en) | 1936-07-01 | 1936-08-05 | Improvements in stretching foils and bands of organic thermoplastic materials |
DE1936I0055860 DE703917C (en) | 1936-07-01 | 1936-09-02 | Process for stretching films or tapes made of organic thermoplastic materials |
FR823499D FR823499A (en) | 1936-07-01 | 1937-06-23 | Process for producing thin sheets and webs from thermoplastic organic compositions |
DEI60348D DE715733C (en) | 1936-07-01 | 1938-01-27 | Process for the production of foils and tapes from organic thermoplastic masses |
FR50131D FR50131E (en) | 1936-07-01 | 1938-12-26 | Process for producing thin sheets and webs from thermoplastic organic compositions |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1936I0055383 DE689539C (en) | 1936-07-01 | 1936-07-01 | Process for stretching films or tapes made of organic thermoplastic materials |
GB21565/36A GB479492A (en) | 1936-07-01 | 1936-08-05 | Improvements in stretching foils and bands of organic thermoplastic materials |
DE1936I0055860 DE703917C (en) | 1936-07-01 | 1936-09-02 | Process for stretching films or tapes made of organic thermoplastic materials |
DEI60348D DE715733C (en) | 1936-07-01 | 1938-01-27 | Process for the production of foils and tapes from organic thermoplastic masses |
Publications (1)
Publication Number | Publication Date |
---|---|
DE703917C true DE703917C (en) | 1941-03-19 |
Family
ID=41225993
Family Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE1936I0055383 Expired DE689539C (en) | 1936-07-01 | 1936-07-01 | Process for stretching films or tapes made of organic thermoplastic materials |
DE1936I0055860 Expired DE703917C (en) | 1936-07-01 | 1936-09-02 | Process for stretching films or tapes made of organic thermoplastic materials |
DEI60348D Expired DE715733C (en) | 1936-07-01 | 1938-01-27 | Process for the production of foils and tapes from organic thermoplastic masses |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE1936I0055383 Expired DE689539C (en) | 1936-07-01 | 1936-07-01 | Process for stretching films or tapes made of organic thermoplastic materials |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEI60348D Expired DE715733C (en) | 1936-07-01 | 1938-01-27 | Process for the production of foils and tapes from organic thermoplastic masses |
Country Status (3)
Country | Link |
---|---|
DE (3) | DE689539C (en) |
FR (2) | FR823499A (en) |
GB (1) | GB479492A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE887262C (en) * | 1951-05-03 | 1953-08-20 | Langheck & Co | Process for drying films made from regenerated cellulose |
DE1098192B (en) * | 1956-10-27 | 1961-01-26 | Alfred Paul Rheinlaender Dr Me | Method and device for the continuous production of net webs or film webs with net-like reinforcements |
DE1102381B (en) * | 1952-08-12 | 1961-03-16 | Du Pont | Device for running, regulated, continuous stretching and shrinking of web-shaped material, in particular thermoplastic plastic films |
DE974729C (en) * | 1943-08-17 | 1961-05-31 | Plax Ges Mit Beschraenkter Haf | Method and device for the continuous production of biaxially oriented films from solvent-free organic polymerization products, in particular polystyrene |
DE1179355B (en) * | 1958-01-08 | 1964-10-08 | Bayer Ag | Method and device for stretching webs made of molecular thermoplastic plastics |
DE1212290B (en) * | 1963-10-15 | 1966-03-10 | Brueckner Trocknerbau | Device for stretching a stretchable material web |
Families Citing this family (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE758240C (en) * | 1938-06-17 | 1953-08-10 | Siemens & Halske A G | Process for the production of electrical wound capacitors with a dielectric made of polymer material |
DE974306C (en) * | 1939-08-05 | 1960-11-17 | Ever Ready Co | Galvanic dry battery |
DE970339C (en) * | 1940-09-14 | 1958-09-11 | Stahl Und Walzwerke Rasselstei | Process for the production of foil-coated metal strips or sheets for the production of cans or similar containers |
DE760954C (en) * | 1941-08-31 | 1953-09-14 | Ig Farbenindustrie Ag | Process for stretching films made from polyamides |
DE946787C (en) * | 1944-07-09 | 1956-08-02 | Kalle & Co Ag | Foils for freezer packs |
DE975276C (en) * | 1948-10-02 | 1961-10-26 | Siemens Ag | Electrical wound capacitor with longitudinally and transversely stretched plastic films as a dielectric |
NL153050B (en) * | 1949-04-27 | Nederlanden Staat | TWO-POLE FOR MISMITING THE CHARACTERISTIC IMPEDANCE OF A PUPINIZED CABLE LOADER PAIR. | |
DE1082219B (en) * | 1952-04-25 | 1960-05-25 | Maurice Marie Stephane Joly | Process for the heat treatment of a fabric made of threads based on polyvinyl |
DE1194561B (en) * | 1956-05-18 | 1965-06-10 | Ici Ltd | Process for the production of a biaxially oriented polyethylene terephthalate film with high strength in the longitudinal direction |
BE561030A (en) * | 1956-10-16 | |||
BE567633A (en) * | 1957-05-14 | 1958-05-13 | ||
DE1151920B (en) * | 1957-07-25 | 1963-07-25 | Hoechst Ag | Process for welding of films made of crystalline or partially crystalline thermoplastics, such as, for. B. low pressure polyethylene and polypropylene |
NL229015A (en) * | 1958-05-23 | |||
DE1111812B (en) * | 1958-12-22 | 1961-07-27 | Trockentechnik Kurt Brueckner | Device for stretching plastic films |
NL252969A (en) * | 1959-06-25 | |||
BE595343A (en) * | 1960-09-26 | 1900-01-01 | ||
NL291836A (en) * | 1962-04-24 | |||
FR1424541A (en) * | 1964-12-03 | 1966-01-14 | Kodak Pathe | New process for transverse stretching of films and machine for its implementation |
GB1533320A (en) * | 1975-09-26 | 1978-11-22 | Breveteam Sa | Binding material |
-
1936
- 1936-07-01 DE DE1936I0055383 patent/DE689539C/en not_active Expired
- 1936-08-05 GB GB21565/36A patent/GB479492A/en not_active Expired
- 1936-09-02 DE DE1936I0055860 patent/DE703917C/en not_active Expired
-
1937
- 1937-06-23 FR FR823499D patent/FR823499A/en not_active Expired
-
1938
- 1938-01-27 DE DEI60348D patent/DE715733C/en not_active Expired
- 1938-12-26 FR FR50131D patent/FR50131E/en not_active Expired
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE974729C (en) * | 1943-08-17 | 1961-05-31 | Plax Ges Mit Beschraenkter Haf | Method and device for the continuous production of biaxially oriented films from solvent-free organic polymerization products, in particular polystyrene |
DE887262C (en) * | 1951-05-03 | 1953-08-20 | Langheck & Co | Process for drying films made from regenerated cellulose |
DE1102381B (en) * | 1952-08-12 | 1961-03-16 | Du Pont | Device for running, regulated, continuous stretching and shrinking of web-shaped material, in particular thermoplastic plastic films |
DE1098192B (en) * | 1956-10-27 | 1961-01-26 | Alfred Paul Rheinlaender Dr Me | Method and device for the continuous production of net webs or film webs with net-like reinforcements |
DE1179355B (en) * | 1958-01-08 | 1964-10-08 | Bayer Ag | Method and device for stretching webs made of molecular thermoplastic plastics |
DE1212290B (en) * | 1963-10-15 | 1966-03-10 | Brueckner Trocknerbau | Device for stretching a stretchable material web |
Also Published As
Publication number | Publication date |
---|---|
GB479492A (en) | 1938-02-07 |
FR823499A (en) | 1938-01-20 |
FR50131E (en) | 1939-12-13 |
DE689539C (en) | 1940-03-27 |
DE715733C (en) | 1942-01-06 |
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