DE700179C - Process for the production of a tape-shaped phonetic transcription carrier - Google Patents
Process for the production of a tape-shaped phonetic transcription carrierInfo
- Publication number
- DE700179C DE700179C DE1937N0040383 DEN0040383D DE700179C DE 700179 C DE700179 C DE 700179C DE 1937N0040383 DE1937N0040383 DE 1937N0040383 DE N0040383 D DEN0040383 D DE N0040383D DE 700179 C DE700179 C DE 700179C
- Authority
- DE
- Germany
- Prior art keywords
- cellulose
- tape
- shaped
- production
- phonetic transcription
- 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 6
- 238000004519 manufacturing process Methods 0.000 title claims description 3
- 238000013518 transcription Methods 0.000 title claims description 3
- 230000035897 transcription Effects 0.000 title claims description 3
- 229920002678 cellulose Polymers 0.000 claims description 7
- 239000001913 cellulose Substances 0.000 claims description 7
- SMEGJBVQLJJKKX-HOTMZDKISA-N [(2R,3S,4S,5R,6R)-5-acetyloxy-3,4,6-trihydroxyoxan-2-yl]methyl acetate Chemical compound CC(=O)OC[C@@H]1[C@H]([C@@H]([C@H]([C@@H](O1)O)OC(=O)C)O)O SMEGJBVQLJJKKX-HOTMZDKISA-N 0.000 claims description 6
- 229940081735 acetylcellulose Drugs 0.000 claims description 6
- 229920002301 cellulose acetate Polymers 0.000 claims description 6
- 239000004627 regenerated cellulose Substances 0.000 claims description 6
- 230000003287 optical effect Effects 0.000 description 2
- 229920002160 Celluloid Polymers 0.000 description 1
- 239000000020 Nitrocellulose Substances 0.000 description 1
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 1
- 230000001476 alcoholic effect Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 150000002485 inorganic esters Chemical class 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229920001220 nitrocellulos Polymers 0.000 description 1
- 150000002895 organic esters Chemical class 0.000 description 1
- 229940072033 potash Drugs 0.000 description 1
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Substances [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 1
- 235000015320 potassium carbonate Nutrition 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 238000007127 saponification reaction Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B11/00—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
Landscapes
- Heat Sensitive Colour Forming Recording (AREA)
- Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
- Thermal Transfer Or Thermal Recording In General (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Duplication Or Marking (AREA)
Description
Verfahren zur Herstellung eines bandförmigen Lautschriftträgers Es ist bekannt, mechanische Schallaufzeichnungen, die für optische Wiedergabe bestimmt sind, in regenerierter Cellulose anzubringen, die mit einer lichtundurchlässigen Deckschicht versehen ist. Es ist schwierig, ein solches Filmband aus regenerierter Cellulose in der Praxis für den genannten Zweck ohne eine hinreichend feste Stützschicht, die vorzugsweise aus Celluloid bestand, zu verwenden. Dabei ist es erwünscht, daß die Schicht aus regenerierter Cellulose und die Stützschicht vorzüglich aneinander festhaften.Process for the production of a ribbon-shaped phonetic transcription carrier Es is known mechanical sound recordings intended for optical reproduction are to be applied in regenerated cellulose, which is covered with an opaque Cover layer is provided. It is difficult to make such a film tape from regenerated Cellulose in practice for the stated purpose without a sufficiently strong support layer, which preferably consisted of celluloid to use. It is desirable that the layer made of regenerated cellulose and the support layer adjoin each other perfectly cling to.
Dies kann nach der Erfindung ohne Verwendung von Bindemitteln dadurch erfolgen, daß von einem aus einem verseifbaren Cellulosederivat bestehenden Filmband ausgegangen wird, das an der Oberfläche, aber für die mechanische Aufzeichnung des Schalls hinreichend tief, durch Verseifung zu Cellulose regeneriert und dann mit der Deckschicht versehen wird. In der auf diese Weise erhaltenen Schicht aus regenerierter Cellulose wird die für optische Wiedergabe bestimmte mechanische Schallaufzeichnung angebracht, z. B. unter Verwendung eines bekannten V-förmigen Meißels, mit einem vorzugsweise stumpfen Scheitelwinkel.This can be done according to the invention without the use of binders take place that of a film tape consisting of a saponifiable cellulose derivative it is assumed that this is on the surface, but for the mechanical recording of the Sound sufficiently deep, regenerated to cellulose by saponification and then with the top layer is provided. In the layer of regenerated Cellulose becomes the mechanical sound recording intended for optical reproduction attached, e.g. B. using a known V-shaped chisel, with a preferably obtuse vertex angle.
Als zur Anwendung der Erfindung geeignete. Cellulosederivate seien anorganische oder organische Ester von Cellulose, z. B. Nitrocellulose, erwähnt. Es wird aber vorzugsweise von Acetylcellulose als Cellulosederivat ausgegangen. Bekanntlich ist Acetylcellulose nicht entflammbar und diese Eigenschaft macht sich bei dem erfindungsgemäßen Verfahren in besonders günstigem Sinne geltend.As suitable for applying the invention. Cellulose derivatives are inorganic or organic esters of cellulose, e.g. B. nitrocellulose mentioned. However, acetyl cellulose is preferably used as a cellulose derivative. As is well known, acetyl cellulose is not flammable and this property makes itself felt applies in the process according to the invention in a particularly favorable sense.
Mit Acetylcellulose kann die Erfindung in der Praxis ausgeführt werden, wenn man von einem Acetylcelluloseband geeigneter Stärke, z. B. r3 o #t, ausgeht und es an der Oberfläche verseift, z. B. durch Behandlung mit einer 2 n-methylalkoholischen Kalilösung, so lange, bis die Stärke der verseiften Schicht z. B. 5o #t ist. Es wird dann ausgewaschen und getrocknet. In oder auf der auf diese Weise erhaltenen regenerierten Celluloseschicht wird nach einem bekannten Verfahren zur Erzielung einer Deckschicht von geringer Dicke eine Schwärzung angebracht, welche wenigstens 950,1o des zum Wiedergeben und Kopieren erforderlichen Lichtes absorbiert, bei der die Schwärzung S also etwa 44 beträgt.With acetyl cellulose, the invention can be carried out in practice, if from an acetyl cellulose tape of suitable strength, e.g. B. r3 o #t, goes out and saponified it on the surface, e.g. B. by treatment with a 2 n-methyl alcoholic Potash solution until the thickness of the saponified layer z. B. 5o #t is. It is then washed out and dried. In or on that way regenerated cellulose layer obtained is by a known method for Achieving a top layer of small thickness a blackening attached, which absorbs at least 950.1o of the light required for reproduction and copying, in which the blackening S is thus about 44.
In dem auf diese Weise erhaltenen Material kann nun auf mechanischem Wege eine Schallaufzeichnung z. B. durch Schneiden angebracht werden, ohne daß die Deckschicht oder die Schicht, in welcher die mechanische Aufzeichnung angebracht wird, sich von dem aus Acetylcellulose bestehenden Träger löst.The material obtained in this way can now be mechanically Ways a sound recording z. B. be attached by cutting without the Top layer or the layer in which the mechanical recording is attached becomes detached from the acetyl cellulose carrier.
Der Vollständigkeit halber sei noch erwähnt, daß es bekannt ist, Schallplatten dadurch herzustellen, daß die Oberflächen einer aus Cellulose Bestehenden Platte in eine gallertartige Masse übergeführt ,und hierauf durch Fällmittel in eine hornartige Schicht umgewandelt werden.For the sake of completeness, it should be mentioned that it is known to record records by producing that the surfaces of a plate made of cellulose converted into a gelatinous mass, and then into a horn-like one by precipitating agents Layer to be converted.
Claims (2)
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1937N0040383 DE700179C (en) | 1937-02-17 | 1937-02-17 | Process for the production of a tape-shaped phonetic transcription carrier |
| US144498A US2163087A (en) | 1937-02-17 | 1937-05-24 | Mechanical recording |
| FR833728D FR833728A (en) | 1937-02-17 | 1938-02-14 | Process for manufacturing a regenerated cellulose tape intended for mechanical sound recording |
| GB4592/38A GB495680A (en) | 1937-02-17 | 1938-02-14 | Method of preparing a film of regenerated cellulose adapted to receive a mechanically-produced sound record |
| CH207746D CH207746A (en) | 1937-02-17 | 1938-02-15 | Tape-shaped material with a mechanical sound recording and process for its manufacture. |
| AT156919D AT156919B (en) | 1937-02-17 | 1938-02-16 | Tape form material for mechanical sound recording and process for its manufacture. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1937N0040383 DE700179C (en) | 1937-02-17 | 1937-02-17 | Process for the production of a tape-shaped phonetic transcription carrier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE700179C true DE700179C (en) | 1940-12-14 |
Family
ID=7348182
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE1937N0040383 Expired DE700179C (en) | 1937-02-17 | 1937-02-17 | Process for the production of a tape-shaped phonetic transcription carrier |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US2163087A (en) |
| AT (1) | AT156919B (en) |
| CH (1) | CH207746A (en) |
| DE (1) | DE700179C (en) |
| FR (1) | FR833728A (en) |
| GB (1) | GB495680A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2522078A (en) * | 1945-02-03 | 1950-09-12 | Joseph B Walker | Translucent recording medium |
-
1937
- 1937-02-17 DE DE1937N0040383 patent/DE700179C/en not_active Expired
- 1937-05-24 US US144498A patent/US2163087A/en not_active Expired - Lifetime
-
1938
- 1938-02-14 GB GB4592/38A patent/GB495680A/en not_active Expired
- 1938-02-14 FR FR833728D patent/FR833728A/en not_active Expired
- 1938-02-15 CH CH207746D patent/CH207746A/en unknown
- 1938-02-16 AT AT156919D patent/AT156919B/en active
Also Published As
| Publication number | Publication date |
|---|---|
| AT156919B (en) | 1939-09-11 |
| FR833728A (en) | 1938-10-28 |
| CH207746A (en) | 1939-11-30 |
| US2163087A (en) | 1939-06-20 |
| GB495680A (en) | 1938-11-17 |
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