EP0047361A2 - Support pour enregistrement par électroérosion - Google Patents

Support pour enregistrement par électroérosion Download PDF

Info

Publication number
EP0047361A2
EP0047361A2 EP81104338A EP81104338A EP0047361A2 EP 0047361 A2 EP0047361 A2 EP 0047361A2 EP 81104338 A EP81104338 A EP 81104338A EP 81104338 A EP81104338 A EP 81104338A EP 0047361 A2 EP0047361 A2 EP 0047361A2
Authority
EP
European Patent Office
Prior art keywords
lacquer
lacquer layer
layer
record carrier
depressions
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.)
Granted
Application number
EP81104338A
Other languages
German (de)
English (en)
Other versions
EP0047361A3 (en
EP0047361B1 (fr
Inventor
Dietrich Jürgen Dr. Bahr
Marian Dipl. Ing. Briska
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.)
IBM Deutschland GmbH
International Business Machines Corp
Original Assignee
IBM Deutschland GmbH
International Business Machines 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 IBM Deutschland GmbH, International Business Machines Corp filed Critical IBM Deutschland GmbH
Publication of EP0047361A2 publication Critical patent/EP0047361A2/fr
Publication of EP0047361A3 publication Critical patent/EP0047361A3/de
Application granted granted Critical
Publication of EP0047361B1 publication Critical patent/EP0047361B1/fr
Expired legal-status Critical Current

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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
    • B41M5/24—Ablative recording, e.g. by burning marks; Spark recording
    • B41M5/245—Electroerosion or spark recording

Definitions

  • the invention relates to recording media for electroerosion printers, with a surface structure insensitive to grinding and scratching marks of the thin metal layer located over a lacquer layer lying on a carrier material.
  • the object of the invention is therefore to create a novel structure of the surface of such a recording medium, which due to its nature tends to be less prone to scratches and scratches.
  • This is achieved according to the invention for a recording medium of the type mentioned at the outset in that the surface of the lacquer layer and thus also the surface of the thin metal layer has a very large number of shallow, as regular as possible deepening in the pm range in comparison with the end face of the writing electrodes, whose distances from each other are much smaller than the diameter of the writing electrodes.
  • the arrangement is preferably such that the depressions are approximately cup-shaped and that the depth of the individual depressions is generally less than their lateral dimensions from one another.
  • a number of methods are conceivable by which such a surface can be produced. These different manufacturing processes can be found in the dependent claims.
  • a record carrier 1 of the prior art consists of a substrate or carrier material 2, a lacquer layer 3 with pigments 4 embedded therein and a vapor-deposited thin aluminum layer 5 of about 20-40 nm thick.
  • the solution according to the invention is based on the following consideration. All previous recording media had a surface structure which was determined by the pigment grains protruding more or less from the level of the lacquer layer and more or less covered by the lacquer layer. The difficulties encountered so far came from the fact that the electrodes practically only grind on the tips of these pigments.
  • the invention is now based on the idea of optically breaking open the surface of the recording medium 1 by producing a negative of the surface structure shown in FIG. 1, as it were, namely by depressions 6 instead of elevations, as shown in FIG. 2.
  • the metal layer becomes almost indestructible if it is coated with a very effective lubricant layer of a few nanometers, for example with a metal soap or a modified metal soap.
  • a surface structure of the record carrier can be produced in various ways. According to previously made with pigmented coatings experience a necessary fatigue are for achieving 10 3 to 1 0 5 P Ig ment grains per mm 2 is required.
  • the density of the pigment grains also depends on their size and shape. Up to now, spherical-spherical elevations of the pigment grains have proven to be the most effective, since the graying effect associated with increasing mattness is the least. It can be concluded from this that the hole density of the depressions 6 should correspond to this.
  • the novel recording medium must be built up on a carrier material that is extremely smooth and flat.
  • the paint is pigmented with large pigment particles, the diameter of which is a multiple of the dry film thickness of the pure binder, which are dissolved by means of heat, radiation or gaseous or liquid chemicals after the paint has dried. Provided that these are approximately spherical pigment particles, the negative impressions of these pigment particles remain as cup-shaped depressions 6 in the lacquer layer.
  • a further possibility is to use laser beams to bombard the surface of a dry, clear or finely pigmented lacquer or of a lacquer colored with a soluble color, and thereby to produce the necessary depressions. It may already be sufficient to remelt the paint locally and on the surface then cause a rough solidification of the surface to achieve the required mattness.
  • the metal layer can then be evaporated.
  • a commercially available pulsed ruby laser with a wavelength ⁇ , ⁇ 0.7 pm, with an output of approximately 10 9 watt / cm 2 can be used for this purpose.
  • the laser beam is deflected optically over the surface of the record carrier. If, for example, x 1 0 5 per cm at a density of the recesses 5 of a spacing of the depressions up to 4 microns 2 at a diameter of the depressions up to 10 m and a depth of troughs of about 2 pm starts and with a pulse duration of 2 ns, about 24 m 2 of record carrier material can be processed in this way in one minute.
  • a further, exceptionally elegant solution is obtained by using a smooth, flat paper as the carrier material 2, which, like microfilters, has a large number of microscopic pores (7).
  • Such paper is permeated with capillaries of the required size and density. If you coat the surface of such paper with a clear varnish, an unpigmented. ten, black colored lacquer or with a black lacquer of appropriate viscosity colored by finely dispersed carbon with a grain size of less than 0.2 pm, this lacquer is partly drawn into the capillaries and forms the desired depressions on the surface when drying 3 shows such a structure in a purely schematic, greatly enlarged form.
  • the advantage of such a surface structure of a recording medium is that the electrode tips which slide or slide over the surface find a substantially larger contact surface than this with pigmented lacquers in which the individual pigment grains are used protrude beyond the surface of the lacquer layer, but still covered with a thin lacquer skin, the case is.
  • the significantly larger contact area in connection with the rounded edges of the cup-shaped depressions results in a substantially smaller contact surface for the writing electrodes for the entire surface of the recording medium and thus also directly for the creation of the dreaded scratches and scratches on the thin aluminum layer.
  • the surface of the thin aluminum layer is provided with a coating of a metal soap or a modified metal soap, it is to be expected that traces of grinding and scratching can be practically completely eliminated.

Landscapes

  • Thermal Transfer Or Thermal Recording In General (AREA)
  • Optical Record Carriers And Manufacture Thereof (AREA)
  • Printing Plates And Materials Therefor (AREA)
EP81104338A 1980-09-03 1981-06-05 Support pour enregistrement par électroérosion Expired EP0047361B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3033069 1980-09-03
DE19803033069 DE3033069A1 (de) 1980-09-03 1980-09-03 Aufzeichnungstraeger fuer elektroerosionsdrucker

Publications (3)

Publication Number Publication Date
EP0047361A2 true EP0047361A2 (fr) 1982-03-17
EP0047361A3 EP0047361A3 (en) 1982-03-24
EP0047361B1 EP0047361B1 (fr) 1985-09-11

Family

ID=6110979

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81104338A Expired EP0047361B1 (fr) 1980-09-03 1981-06-05 Support pour enregistrement par électroérosion

Country Status (5)

Country Link
US (1) US4392143A (fr)
EP (1) EP0047361B1 (fr)
JP (1) JPS5749595A (fr)
CA (1) CA1169036A (fr)
DE (2) DE3033069A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5847028A (en) * 1995-12-25 1998-12-08 Sakata Inx Corp. Pigment dispersion and offset printing ink composition using the same

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0122948B1 (fr) * 1983-04-21 1987-07-08 Ibm Deutschland Gmbh Procédé pour l'obtention d'une couche de glissement à base de savons métalliques sur un support d'enregistrement métallisé
US5217829A (en) * 1990-02-22 1993-06-08 Presstek, Inc. Method for producing photomasks
US5354633A (en) * 1993-09-22 1994-10-11 Presstek, Inc. Laser imageable photomask constructions

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2048431A1 (de) * 1970-08-05 1972-04-06 Licentia Gmbh Verfahren zum Aufzeichnen von Infor mationen, vorzugsweise von solchen großer Bandbreite im Bereich von mehreren MHz, auf einem Trager
DE2203861A1 (fr) * 1971-01-30 1972-08-17
DE2121250A1 (en) * 1971-04-30 1972-11-02 Gebr. Hoesch, 5166 Kreuzau Metallised copying paper - with reduced lustre
JPS5032952A (fr) * 1973-07-23 1975-03-29
EP0047814A1 (fr) * 1980-08-28 1982-03-24 Ibm Deutschland Gmbh Support pour enregistrement par électroérosion

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4945961U (fr) * 1972-07-24 1974-04-22
DE2748161C3 (de) * 1977-10-27 1980-09-18 Robert Bosch Gmbh, 7000 Stuttgart Aufzeichnungsträger für Registriergeräte
US4177310A (en) * 1978-07-27 1979-12-04 King Seeley Thermos Company Method of metallizing paper

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2048431A1 (de) * 1970-08-05 1972-04-06 Licentia Gmbh Verfahren zum Aufzeichnen von Infor mationen, vorzugsweise von solchen großer Bandbreite im Bereich von mehreren MHz, auf einem Trager
DE2203861A1 (fr) * 1971-01-30 1972-08-17
DE2121250A1 (en) * 1971-04-30 1972-11-02 Gebr. Hoesch, 5166 Kreuzau Metallised copying paper - with reduced lustre
JPS5032952A (fr) * 1973-07-23 1975-03-29
EP0047814A1 (fr) * 1980-08-28 1982-03-24 Ibm Deutschland Gmbh Support pour enregistrement par électroérosion

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
JAPANESE PATENTS GAZETTE, Part I, Chemical Week X04, 3. März 1976, London, (GB) "Facsimile recording material - with vapour-deposited metal film"; & JP-A-50 032 952 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5847028A (en) * 1995-12-25 1998-12-08 Sakata Inx Corp. Pigment dispersion and offset printing ink composition using the same

Also Published As

Publication number Publication date
EP0047361A3 (en) 1982-03-24
EP0047361B1 (fr) 1985-09-11
DE3033069A1 (de) 1982-04-22
CA1169036A (fr) 1984-06-12
JPS5749595A (en) 1982-03-23
DE3172215D1 (en) 1985-10-17
US4392143A (en) 1983-07-05

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