DE890712C - Process for the production of watermark-like patterns in foils made of polyvinyl chloride or related plastics - Google Patents
Process for the production of watermark-like patterns in foils made of polyvinyl chloride or related plasticsInfo
- Publication number
- DE890712C DE890712C DENDAT890712D DE890712DA DE890712C DE 890712 C DE890712 C DE 890712C DE NDAT890712 D DENDAT890712 D DE NDAT890712D DE 890712D A DE890712D A DE 890712DA DE 890712 C DE890712 C DE 890712C
- Authority
- DE
- Germany
- Prior art keywords
- polyvinyl chloride
- patterns
- watermark
- production
- foils 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
- 238000000034 method Methods 0.000 title claims description 5
- 229920003023 plastic Polymers 0.000 title claims description 5
- 239000004033 plastic Substances 0.000 title claims description 5
- 229920000915 polyvinyl chloride Polymers 0.000 title claims description 4
- 239000004800 polyvinyl chloride Substances 0.000 title claims description 4
- 238000004519 manufacturing process Methods 0.000 title description 3
- 239000011888 foil Substances 0.000 title description 2
- 230000000875 corresponding Effects 0.000 claims description 3
- 238000005096 rolling process Methods 0.000 claims description 2
- 238000005266 casting Methods 0.000 claims 1
- 238000010438 heat treatment Methods 0.000 description 5
- 150000002148 esters Chemical class 0.000 description 2
- 239000004014 plasticizer Substances 0.000 description 2
- 229920001290 polyvinyl ester Polymers 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 229920001169 thermoplastic Polymers 0.000 description 2
- 239000004416 thermosoftening plastic Substances 0.000 description 2
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 2
- 239000004793 Polystyrene Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 229920002678 cellulose Chemical class 0.000 description 1
- 239000001913 cellulose Chemical class 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 238000005555 metalworking Methods 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920003227 poly(N-vinyl carbazole) Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 238000007788 roughening Methods 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 238000007669 thermal treatment Methods 0.000 description 1
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
- B29C67/00—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
Description
Es ist bekannt, hochwertige Kunststoffolien aus Polyvinylchlorid und verwandten organischen thermoplastischen Kunststoffen herzustellen, indem man entweder eine aus einem Lösungsmittel gegossene Folie oder eine ohne Verwendung von Lösungsmitteln oder Weichmachungsmitteln im Walzprozeß auf einem Kalander gebildete Folie ohne Anwendung von Druck über eine oder mehrere geheizte Flächen, insbesondere Heizwalzen, führt und auf diesem Durchgang oder unmittelbar dahinter erheblich verstreckt.It is known to use high quality plastic films made from polyvinyl chloride and related organic Manufacture thermoplastics by either one from a solvent cast film or one without the use of solvents or plasticizers in the Rolling process formed on a calender sheet without the application of pressure on an or several heated surfaces, in particular heating rollers, leads and on this passage or directly considerably stretched behind it.
Es wurde nun gefunden, daß man derartige Folien ohne einen zusätzlichen Arbeitsgang während der der Verstreckung vorangehenden Führung über die geheizte Fläche mit wasserzeichenartigen Mustern versehen kann, indem man der zur thermischen Behandlung der Folie dienenden, auf etwa 250 bis 2800 C erhitzten Fläche oder Walze, über die die Folie auf ihrem Weg zum Streckorgan geführt wird, ein dem jeweils gewünschten Muster entsprechendes schwaches Relief durch Auf rauhung, Ätzung oder sonstige aus der Metallbearbeitungstechnik bekannte Methoden verleiht. Die durch dieses Relief unregelmäßig gestaltete Oberfläche der Heizwalze bedingt, daß die über sie hinweggeführte Folie nicht in ihrer ganzen Ausdehnung, sondern nur an den den Erhöhungen des Reliefs entsprechenden Stellen aufliegt. An diesen Auflagestellen ist der Wärmeübergang von der Walze zur Folie intensiver und erzeugt daher in der Folie besonders klare Flächen, die in ihren Umrissen dem Umriß der Erhöhungen der Heizwalze entsprechen.It has now been found that such films without an additional operation during the prior stretching guide over the heated surface may be provided with a watermark-like patterns by the serving for the thermal treatment of the film, up to 280 0 C, heated to about 250 surface or one roll , through which the film is guided on its way to the stretching element, gives a weak relief corresponding to the particular desired pattern by roughening, etching or other methods known from metalworking technology. The surface of the heating roller, which is irregularly shaped by this relief, means that the film that is passed over it does not rest in its entire extent, but only on the points corresponding to the elevations of the relief. The heat transfer from the roller to the film is more intensive at these contact points and therefore produces particularly clear surfaces in the film, the outlines of which correspond to the outline of the elevations of the heating roller.
An den nicht direkt aufliegenden Stellen bleibt die Folie infolge des etwas geringeren Wärmeübergangs dagegen etwas matt. Aus dem Gegensatz der matten und klaren Stellen ergibt sich eine wasserzeichenartige Musterung der Folie, die aber im übrigen die gleichen hochwertigen mechanischen Eigenschaften erlangt wie eine über eine völlig glattpolierte Heizwalze geführte Folie. % Das neue Verfahren ist betriebssicher, einfach und billig, denn es erfordert, abgesehen von der Oberflächenbehandlung der Heizwalze, keinen zusätzlichen Arbeitsgang. Es gestattet, in einfacher Weise zart gemusterte Folien herzustellen, die in der Weiterverarbeitung zahlreiche Effekte ergeben, die bisher nicht erreichbar waren.On the other hand, in the areas that are not directly in contact, the film remains somewhat matt due to the somewhat lower heat transfer. The contrast between the matt and clear areas results in a watermark-like pattern on the film, which, however, otherwise has the same high-quality mechanical properties as a film passed over a completely polished heating roller. % The new process is reliable, simple and cheap, because apart from the surface treatment of the heating roller, it does not require any additional work. It allows the production of delicately patterned foils in a simple manner, which produce numerous effects in further processing that were previously unattainable.
Das Verfahren ist zur Anwendung bei allen organischen thermoplastischen Kunststoffen, wie Polyvinylchlorid, Polystyrol, Polyvinylester, Homologen der Polyacrylester, Polyvinylcarbazol oder Mischpolymerisaten aus Polyacrylestern und einer oder mehreren der genannten VinylverbindungenThe process is applicable to all organic thermoplastics, such as Polyvinyl chloride, polystyrene, polyvinyl esters, homologues of the polyacrylic esters, polyvinyl carbazole or Copolymers of polyacrylic esters and one or more of the vinyl compounds mentioned
oder aus mindestens zwei der genannten Vinylverbindungen, Cellulosederivaten, Chlorkautschuk u. dgl., geeignet. Die Kunststoffe können gegebenenfalls Zusätze von Weichmachern und Plasti- 25 fizierungsmitteln, Farbstoffen u. dgl. enthalten. Besonders bewährt hat sich das Verfahren in der Anwendung von weichmacherfreien Walzfolien aus Polyvinylester^or from at least two of the vinyl compounds, cellulose derivatives, chlorinated rubber mentioned and the like, suitable. The plastics can optionally contain additives of plasticizers and plastics contain fixing agents, dyes and the like. The process has proven particularly successful in the Use of plasticizer-free rolled films made of polyvinyl ester ^
Claims (1)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE890712C true DE890712C (en) | 1953-08-13 |
Family
ID=580856
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT890712D Expired DE890712C (en) | Process for the production of watermark-like patterns in foils made of polyvinyl chloride or related plastics |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE890712C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| DE1182801B (en) * | 1954-09-04 | 1964-12-03 | Hornschuch Ag K | Two-stage process for the surface design of a film made of thermoplastic material |
-
0
- DE DENDAT890712D patent/DE890712C/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1182801B (en) * | 1954-09-04 | 1964-12-03 | Hornschuch Ag K | Two-stage process for the surface design of a film made of thermoplastic material |
| 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 |
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