[go: up one dir, main page]

DE902111C - Recording medium made of electrically conductive paper for radio broadcasting purposes u. Like. And method for its preparation - Google Patents

Recording medium made of electrically conductive paper for radio broadcasting purposes u. Like. And method for its preparation

Info

Publication number
DE902111C
DE902111C DEI3198D DEI0003198D DE902111C DE 902111 C DE902111 C DE 902111C DE I3198 D DEI3198 D DE I3198D DE I0003198 D DEI0003198 D DE I0003198D DE 902111 C DE902111 C DE 902111C
Authority
DE
Germany
Prior art keywords
metal powder
recording medium
paper
medium according
electrically conductive
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
Application number
DEI3198D
Other languages
German (de)
Inventor
Bernard Leh Kline
Curt Emil Mobius
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
International Standard Electric Corp
Original Assignee
International Standard Electric Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by International Standard Electric Corp filed Critical International Standard Electric Corp
Application granted granted Critical
Publication of DE902111C publication Critical patent/DE902111C/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M5/00—Duplicating or marking methods; Sheet materials for use therein
    • B41M5/20—Duplicating or marking methods; Sheet materials for use therein using electric current
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/03—Non-macromolecular organic compounds
    • D21H17/05—Non-macromolecular organic compounds containing elements other than carbon and hydrogen only
    • D21H17/14—Carboxylic acids; Derivatives thereof
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/63—Inorganic compounds
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
    • D21H23/76—Processes or apparatus for adding material to the pulp or to the paper characterised by choice of auxiliary compounds which are added separately from at least one other compound, e.g. to improve the incorporation of the latter or to obtain an enhanced combined effect
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
    • H01B1/20—Conductive material dispersed in non-conductive organic material
    • H01B1/22—Conductive material dispersed in non-conductive organic material the conductive material comprising metals or alloys
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L13/00—Details of the apparatus or circuits covered by groups H04L15/00 or H04L17/00
    • H04L13/02—Details not particular to receiver or transmitter
    • H04L13/06—Tape or page guiding or feeding devices
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/23—Reproducing arrangements
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/03—Non-macromolecular organic compounds
    • D21H17/05—Non-macromolecular organic compounds containing elements other than carbon and hydrogen only
    • D21H17/06—Alcohols; Phenols; Ethers; Aldehydes; Ketones; Acetals; Ketals
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/63—Inorganic compounds
    • D21H17/67—Water-insoluble compounds, e.g. fillers, pigments
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/63—Inorganic compounds
    • D21H17/67—Water-insoluble compounds, e.g. fillers, pigments
    • D21H17/69—Water-insoluble compounds, e.g. fillers, pigments modified, e.g. by association with other compositions prior to incorporation in the pulp or paper
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
    • D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
    • D21H23/02—Processes or apparatus for adding material to the pulp or to the paper characterised by the manner in which substances are added

Landscapes

  • Signal Processing (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Multimedia (AREA)
  • Inorganic Chemistry (AREA)
  • Dispersion Chemistry (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Paper (AREA)
  • Liquid Developers In Electrophotography (AREA)
  • Electrophotography Using Other Than Carlson'S Method (AREA)
  • Photoreceptors In Electrophotography (AREA)

Description

(WiGBl. S. 175)(WiGBl. P. 175)

AUSGEGEBEN AM 18. JANUAE1954ISSUED JANUARY 18, 1954

I 3198 IVb 155 fI 3198 IVb 155 f

Die Erfindung bezieht sich auf Aufzeichnungsträger aus elektrisch leitendem Papier, insbesondere mit einer leichten Farbtönung, und auf Verfahren zur Herstellung eines solchen Papiers.The invention relates to recording media made of electrically conductive paper, in particular with a slight tint, and methods of making such paper.

Es ist bereits vorgeschlagen worden, elektrisch leitendes Papier dadurch herzustellen, daß ein Faserstoff oder eine Papiermasse mit Metallpulver, ζ. Β. Aluminiumpulver, versetzt wird, wobei die einzelnen Metallpartikel das Papier leitend machen. Es hat sich jedoch gezeigt, daß die Partikel leicht oxydieren, so daß schlechte Kontaktflächen entstehen, wodurch die Leitfähigkeit des Papiers beeinträchtigt wird.It has already been proposed to produce electrically conductive paper in that a fiber material or a paper pulp with metal powder, ζ. Β. Aluminum powder, is added, with the individual metal particles make the paper conductive. However, it has been found that the particles oxidize easily, so that poor contact surfaces arise, which affects the conductivity of the paper.

Bei der Wiedergabe von Bildern durch Bildtelegraphie od. dgl. ist es sehr erwünscht, ein leicht farbiges Papier zu benutzen, das elektrisch leitend ist. Bisher war es jedoch nicht möglich, diese Aufgabe zu lösen, sondern man hat dunkles Papier benutzt, in dem Kohle enthalten war, oder man hat sich auf das Prinzip der Ionenleitung gestützt. Es ist ferner erwünscht, daß das für die Aufzeichnung zur Verwendung kommende Papier nicht vor Ingebrauchnahme vorbereitet, d.h. angefeuchtet oder getrocknet werden muß.When reproducing pictures by picture telegraphy or the like, it is very desirable to have a slightly colored Use paper that is electrically conductive. So far, however, it has not been possible to perform this task solve, but you used dark paper that contained charcoal, or you relied on that Principle of ion conduction supported. It is also desirable that the for recording for use incoming paper must not be prepared, i.e. moistened or dried, before use.

Gemäß der Erfindung wird ein elektrisch leitendes Papier oder anderer Faserstoff vorgeschlagen, in dem eine Mischung aus einem Metallpulver, ζ. Β. Aluminiumpulver, und einem diesem gegenüber sich reduzierend oder neutral verhaltenden Mittel enthalten ist.According to the invention, an electrically conductive paper or other fibrous material is proposed in which a mixture of a metal powder, ζ. Β. Aluminum powder, and one of these reducing itself or neutral agent is included.

Wie bereits erwähnt, hat man festgestellt, daß Aluminiumpulver oder ein anderes Metallpulver, das dem Papierstoff zugesetzt wird, leicht oxydiert, so daß die elektrische Leitfähigkeit des Papiers in Frage gestellt wird. Es wurde nun festgestellt, daß gewisseAs already mentioned, it has been found that aluminum powder or another metal powder that is added to the paper stock, easily oxidized, so that the electrical conductivity of the paper in question is provided. It has now been established that certain

Substanzen, die sich reduzierend oder neutral zu Metallpulvern verhalten, in der Lage sind, die Leitfähigkeit der einzelnen Metallpartikel aufrechtzuerhalten, ohne daß eine Oxyd- oder ähnlich hoch isolierende Schicht entsteht. Wird ein Metallpulver somit erfindungsgemäß mit einer solchen Substanz gemischt, so entsteht eine metallähnliche Masse, in der die Metallpartikel genügend große und reine Kontaktflächen aufweisen, die dazu geeignet sind, die Leitfähigkeit aufrechtzuerhalten.Substances that are reducing or neutral to metal powders are able to increase the conductivity of the individual metal particles to be maintained without causing an oxide or similar high insulating layer is created. Thus, according to the invention, a metal powder is provided with such a substance mixed, the result is a metal-like mass in which the metal particles have sufficiently large and pure contact surfaces that are suitable for maintaining conductivity.

Als solche Substanzen kommen z. B. feste aliphatische und aromatische Alkohole, und zwar sowohl einals auch mehrwertige, ferner Aldehyde oder Ketone mit oder ohne gelöste Elektrolyte in Frage. Eine feste Substanz, die zu hervorragenden Ergebnissen führt, ist Mannit, ein sechswertiger Alkohol, der als weißes Pulver gewonnen wird. Ein zweites wichtiges Material ist Diglykolstearat, bekanntlich ein Stearinsäureester des Diäthylenglykols, mit dem gleichwertige Resultate wie mit Mannit erzielt werden. Eine weitere Substanz, die als Schutzmasse benutzt werden kann, ist z. B. der vierwertige Alkohol Erythrit. Die bisher genannten Stoffe sind einfach aufgebaute mehrwertige Alkohole. Außerdem können jedoch auch Resorcin, ferner einwertige Alkohole, in denen mehr als io Kohlenstoffatome im Molekül enthalten sind, gewisse Zucker arten, wie z. B. Dextrose, Maltose und Rohrzucker, und gewisse Oxysäuren, wie z. B. Bernstein- oder Apfelsäure, verwendet werden. Auch höhere Aldehyde, wie z. B. der unter dem Namen Paraldol bekannte Stoff, ferner Milchsäurealdehyd, sowie Ketone, wie z. B. Benzophenon, können als feste Substanzen in gleicher Weise verwendet werden. Polyoxy verbindungen, die zum Teil verestert und strukturmäßig dem Glyzerinmonophthalat ähnlich sind, kommen in derselben Weise zur Verwendung. Bevorzugte Schutzsubstanzen sind feste mehrwertige Alkohole und ihre Abkömmlinge sowie verwandte Substanzen und ihre Derivate, wie z. B. Aldehyde, Ketone, Zucker und gewisse Oxysäuren, die die gleichen Eigenschaften aufweisen. Aus Estern bestehende Stoffe, wie z. B. Carnaubawachs, sind auch geeignete Mittel.Such substances come e.g. B. solid aliphatic and aromatic alcohols, both as also polyvalent, further aldehydes or ketones with or without dissolved electrolytes in question. A firm one Substance that gives excellent results is mannitol, a hexahydric alcohol that is known as white Powder is obtained. A second important material is diglycol stearate, known to be a stearic acid ester of diethylene glycol, with which results equivalent to those obtained with mannitol are achieved. Another substance which can be used as a protective mass is, for. B. the tetravalent alcohol erythritol. The ones mentioned so far Substances are simply composed polyvalent alcohols. In addition, however, resorcinol can also be used, furthermore monohydric alcohols, which contain more than 10 carbon atoms in the molecule, certain types of sugar, such as B. dextrose, maltose and cane sugar, and certain oxyacids, such as. B. succinic or malic acid, be used. Even higher aldehydes, such as. B. the substance known under the name Paraldol, also Lactic acid aldehyde, and ketones, such as. B. Benzophenone can be used as solid substances in the same way be used. Polyoxy compounds, which are partly esterified and structurally the glycerol monophthalate are used in the same way. Preferred protective substances are solid polyhydric alcohols and their derivatives and related substances and their derivatives, such as. B. Aldehydes, ketones, sugars and certain oxyacids that have the same properties. Made from esters existing substances, such as B. carnauba wax, are also suitable agents.

Diese Substanzen, von denen vor allem Mannit und Diglykolstearat bevorzugt werden, können geschmolzen und mit einer Menge von 30 bis 150 °/0 eines Metallpulvers, beispielsweise aus Aluminium, gemischt und dann abgekühlt werden. Solche Mischungen sind elektrisch leitend und können in den Faserstoff, also z. B. in die Papierblätter eingelagert werden. An Stelle des Aluminiumpulvers können natürlich auch andere Pulver, z. B. aus Kupfer, Messing, Bronze, Eisen und Zink, benutzt werden. Die in Flockenform anfallenden Metallpulver werden auf Grund ihrer günstigen, Licht reflektierenden und aufhellenden Eigenschaften bevorzugt. These substances, of which are preferable especially mannitol and diglycol stearate, may be melted and blended with an amount of 30 to 150 ° / 0 of a metal powder, for example of aluminum, and then cooled. Such mixtures are electrically conductive and can be in the fiber, so z. B. be stored in the paper sheets. Instead of the aluminum powder, of course, other powders, e.g. B. made of copper, brass, bronze, iron and zinc can be used. The metal powders obtained in flake form are preferred because of their favorable light-reflecting and brightening properties.

Jede Mischung eines jeden genannten Materials kann dem Papier dadurch beigegeben werden, daß man das Metallpulver zunächst mit der Papiermasse in üblicher Weise in einem Gefäß vermischt und dann, nachdem die Papierbahn wenigstens zum Teil in der üblichen Weise getrocknet worden ist, die Papiermasse mit Hilfe einer wäßrigen oder alkoholischen Lösung einer der obengenannten Schutzsubstanzen, vorzugsweise also Diglykolstearat oder Mannit, imprägniert. Das Imprägnieren kann so durchgeführt werden, daß die Papierbahn durch ein Bad der geschmolzenen festen Lösung gezogen wird oder daß die Lösung mit Hilfe einer Walze dem Papier zugeführt wird. Danach kann die Papierbahn getrocknet und heiß kalandriert werden, so daß der Mannit oder das Diglykolstearat schmilzt und eine leitende Verbindung zwischen den einzelnen Metallpartikeln in dem Papier herstellt.Any mixture of any of the named materials can be added to the paper by the metal powder is first mixed with the paper pulp in the usual way in a vessel and then, after the paper web has been dried at least partially in the usual way, the paper pulp with the aid of an aqueous or alcoholic solution of one of the above protective substances, preferably i.e. diglycol stearate or mannitol, impregnated. The impregnation can be carried out so that the paper web is pulled through a bath of the molten solid solution or that the solution with With the help of a roller the paper is fed. The paper web can then be dried and hot-calendered be, so that the mannitol or diglycol stearate melts and a conductive connection between the produces individual metal particles in the paper.

Leitende Papiere gemäß der Erfindung werden im allgemeinen mit Farbstoffen vermischt, wobei der zur Markierung benutzte Stromdurchgang durch das Papier eine Farbänderung bewirkt. Solche Beimischungen können z. B. aus Bleithiosulfat, Bleirhodanid oder Quecksilbersulfid bestehen, die gleichzeitig mit dem Metallpulver in das Mischgefäß gefüllt werden, damit sie innig mit dem Metallpulver und dem Faserstoff vermengt werden. Die Farbstoffe können auch als äußere Schicht auf die Papierbahn aufgetragen werden. Wenn der elektrische Strom durch ein Papier geleitet wird, das nach dem oben beschriebenen Verfahren hergesteEt ist, entsteht ein klares Bild, das allen Anforderungen genügt.Conductive papers according to the invention are generally mixed with dyes, the for Marking used current passage through the paper causes a color change. Such admixtures can e.g. B. consist of lead thiosulfate, lead thiocyanate or mercury sulfide, which at the same time be filled with the metal powder in the mixing vessel so that they are intimately with the metal powder and are mixed with the pulp. The dyes can also be applied to the paper web as an outer layer will. When the electric current is passed through a paper made according to the above Process is established, a clear picture emerges that meets all requirements.

Claims (7)

Patentansprüche:Patent claims: 1. Aufzeichnungsträger aus elektrisch leitendem Papier für Bildfunkzwecke u. dgl., dadurch gekennzeichnet, daß das Papier oder ein sonstiger Faserstoff eine aus einem Metallpulver, z. B. Aluminiumpulver, und einem diesem gegenüber sich reduzierend oder neutral verhaltenden Mittel bestehende Mischung enthält.1. Recording medium made of electrically conductive Paper for radio video purposes and the like, characterized in that the paper or some other fibrous material one made of a metal powder, e.g. B. aluminum powder, and one of this with respect to each other reducing or neutral-acting agent contains existing mixture. 2. Aufzeichnungsträger nach Anspruch 1, dadurch gekennzeichnet, daß das dem Metallpulver gegenüber sich reduzierend oder neutral verhaltende Mittel aus ein- oder mehrwertigen Alkoholen, gegebenenfalls teilweise substituierten Estern, Aldehyden oder Ketonen, Zuckern oder Oxysäuren, gegebenenfalls aus einer Mischung mehrerer dieser Stoffe besteht.2. Recording medium according to claim 1, characterized in that the metal powder agents made from monohydric or polyhydric alcohols that reduce or act neutrally, optionally partially substituted esters, aldehydes or ketones, sugars or Oxy acids, optionally consisting of a mixture of several of these substances. 3. Aufzeichnungsträger nach Anspruch 1, dadurch gekennzeichnet, daß das dem Metallpulver gegenüber sich reduzierend oder neutral verhaltende Mittel aus Diglykolstearat, Mannit, Erythrit oder Resorcin besteht.3. Recording medium according to claim 1, characterized in that the metal powder reducing or neutral agents made from diglycol stearate, mannitol, erythritol or Resorcinol consists. 4. Aufzeichnungsträger nach Anspruch 2 bis 3, dadurch gekennzeichnet, daß er Farbstoffe, wie Bleithiosulfat, Bleirhodanid oder Quecksilbersulfid, mit Metallpulver vermengt, enthält.4. Recording medium according to claim 2 to 3, characterized in that it has dyes, such as Contains lead thiosulphate, lead rhodanide or mercury sulphide mixed with metal powder. 5. Aufzeichnungsträger nach Anspruch 1, dadurch gekennzeichnet, daß in ihm das Metallpulver in Mengen von 30 bis 150 °/0 der Schutzsubstanzen enthalten ist.5. Record carrier as claimed in claim 1, characterized in that the metal powder in amounts of 30 to 150/0 of the protective substances contained therein °. 6. Verfahren zur Herstellung eines Aufzeichnungsträgers nach Anspruch 1, dadurch gekennzeichnet, daß ein Metallpulver, z. B. Aluminium, mit dem Papierstoff vermischt, die teilweise getrocknete Papierbahn mit einer Mannit-, Diglykolstearat- oder ähnlichen Lösung imprägniert und die so behandelte Papierbahn heiß kalandriert wird.6. A method for producing a recording medium according to claim 1, characterized in that that a metal powder, e.g. B. aluminum, mixed with the paper stock, partially impregnated dried paper web with a mannitol, diglycol stearate or similar solution and the paper web treated in this way is hot calendered. 7. Verfahren nach Anspruch 6, dadurch gekennzeichnet, daß das Metallpulver dem Imprägniermittel zugemischt wird.7. The method according to claim 6, characterized in that the metal powder is the impregnating agent is admixed. © 5694 1.54© 5694 1.54
DEI3198D 1939-07-27 1940-07-27 Recording medium made of electrically conductive paper for radio broadcasting purposes u. Like. And method for its preparation Expired DE902111C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US286804A US2374214A (en) 1939-07-27 1939-07-27 Conductive papers

Publications (1)

Publication Number Publication Date
DE902111C true DE902111C (en) 1954-01-18

Family

ID=23100223

Family Applications (1)

Application Number Title Priority Date Filing Date
DEI3198D Expired DE902111C (en) 1939-07-27 1940-07-27 Recording medium made of electrically conductive paper for radio broadcasting purposes u. Like. And method for its preparation

Country Status (5)

Country Link
US (1) US2374214A (en)
BE (1) BE460345A (en)
DE (1) DE902111C (en)
FR (1) FR889820A (en)
GB (1) GB537770A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2993816A (en) * 1960-03-30 1961-07-25 Du Pont Conducting textryls
US3022213A (en) * 1958-02-13 1962-02-20 Michigan Res Lab Inc Conductive web and method of making same

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2654170A (en) * 1949-01-17 1953-10-06 Minnesota Mining & Mfg Disintegrable label and washable container labeled therewith
US2662803A (en) * 1949-06-29 1953-12-15 Faximile Inc Recording method and apparatus
US2726179A (en) * 1952-01-07 1955-12-06 Bosch Gmbh Robert Recording tapes having a metal layer applied by vapour deposition
US2870689A (en) * 1952-12-04 1959-01-27 Helen E Brennan Method of producing strip material
US3062700A (en) * 1960-02-11 1962-11-06 Harold R Dalton Static discharging paper
US3132989A (en) * 1961-02-27 1964-05-12 Carrier Corp Thermally conductive paper containing dendritic metal particles
DE1242020B (en) * 1962-08-09 1967-06-08 Olympia Werke Ag Device for punching recording media by means of spark discharge
US3493369A (en) * 1964-04-03 1970-02-03 Appleton Coated Paper Co Low electrical resistance varnish coatings on an insulating base
US3874995A (en) * 1971-03-30 1975-04-01 Us Army Method of making aluminized paper
JPS58397B2 (en) * 1976-02-19 1983-01-06 京セラミタ株式会社 energized recorder
CA1141528A (en) * 1978-08-04 1983-02-22 Western Electric Company, Incorporated Conductive adhesive system including a conductivity enhancer
US4806410A (en) * 1986-09-18 1989-02-21 Ranpak Corp. Processes for the production of antistatic or static dissipative paper, and the paper products thus produced, and apparatus utilized
US8697934B2 (en) * 2007-07-31 2014-04-15 Kimberly-Clark Worldwide, Inc. Sensor products using conductive webs
US8058194B2 (en) * 2007-07-31 2011-11-15 Kimberly-Clark Worldwide, Inc. Conductive webs
WO2012081991A1 (en) * 2010-12-15 2012-06-21 Condalign As Method for forming an anisotropic conductive paper and a paper thus formed
US20240300231A1 (en) * 2021-02-10 2024-09-12 Illinois Tool Works Inc. Sheet assembly for forming one or more cards

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3022213A (en) * 1958-02-13 1962-02-20 Michigan Res Lab Inc Conductive web and method of making same
US2993816A (en) * 1960-03-30 1961-07-25 Du Pont Conducting textryls

Also Published As

Publication number Publication date
GB537770A (en) 1941-07-04
FR889820A (en) 1944-01-20
US2374214A (en) 1945-04-24
BE460345A (en)

Similar Documents

Publication Publication Date Title
DE902111C (en) Recording medium made of electrically conductive paper for radio broadcasting purposes u. Like. And method for its preparation
DE2237288A1 (en) HEAT SENSITIVE MATERIAL AND THERMAL RECORDING FILM
DE1423733A1 (en) Electrostatic copy pad
DE1901181A1 (en) Magnetic recording tape
DE968854C (en) Recording sheet for electrical recorders such as facsimile or picture telegraphs
DE3044770C2 (en)
DE602004001421T2 (en) Metal graphite material and corresponding manufacturing method
DE2628103C3 (en) Current sensitive recording sheet and method for its production
DE1572209C3 (en) Image receiving sheet for thermal transfer processes
DE2018834A1 (en) Method and apparatus for electrical printing or recording
DE1497115B2 (en) Supports for electrophotographic recording materials
DE1955699B2 (en)
DE1929376A1 (en) Magnetic sound material
DE2403366A1 (en) METHOD FOR MANUFACTURING MAGNETIC METAL PARTICLES
DE1522586B1 (en) Electrophotographic recording material
DE3235425A1 (en) MAGNETIC RECORDING MEDIUM AND METHOD FOR PRODUCING THE SAME
DE604500C (en) Carbonless paper and process for its manufacture
DE3030360C2 (en) Magnetic recording medium
DE657599C (en) Process for the production of liquid- and gas-impermeable papers of low transparency
DE1068116B (en)
DE1935718A1 (en) Electrophotographic paper
DE2008636C3 (en) Process for the production of an electrically conductive layer
AT159255B (en) Electrolytic capacitor.
DE482366C (en) Isolating means for electrical engineering
DE1771424A1 (en) Color transfer material and process for its manufacture