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Process for reducing traces of abrasion or scratches on the surface of a record carrier
| Details |
Inventors: Bahr, Dietrich J.; Briska, Marian;
Assignee: International Business Machines Corporation (Armonk, NY)
Primary Examiner: Lusignan; Michael R.
Assistant Examiner:
Attorney, Agent or Firm: Walsh; Joseph G.
The invention concerns a process for reducing, or completely eliminating, traces of abrasion or scratches on the surface of a record carrier covered with a thin metallic layer, preferably consisting of aluminum. The process is characterized in that the surface of the record carrier is covered with a 2 to 1000 nm thick layer of a metallic soap, preferably a saturated metallic soap, an unsaturated metallic soap or a mixture thereof. |
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DETAILED DESCRIPTION We claim: 1.
A process for reducing traces of abrasion during printing operations in an electrographic printer, on the surface of a record carrier covered with a thin evaporated aluminum layer, said process being characterized in that a thin layer of about 2 nm to 1000 nm of a metallic soap is applied to said layer in such a manner that the inherent unevenness of the surface of the record carrier is essentially leveled out and compensated.
2.
A process in accordance with claim 1, characterized in that saturated metallic soaps, unsaturated metallic soaps or mixtures thereof are used.
3.
A process in accordance with claim 1, characterized in that a metallic soap selected from the group consisting of stearates, palmitates, oleates, linoleates, resinates, laurates and naphthenates is used.
4.
A process in accordance with claim 1, characterized in that a hydrophilic soap is used.
5.
A process in accordance with claim 1, characterized in that a hydrophobic soap is used.
6.
A process in accordance with claim 1, characterized in that a water-soluble soap is used.
7.
A process in accordance with claim 1 characterized in that a soap insoluble in water is used.
8.
A process in accordance with claim 1, characterized in that a soap of tin, zinc, lithium or magnesium is used.
Description:
DESCRIPTION 1.
Technical Field The invention concerns a process for reducing or completely eliminating traces of abrasion or scratches on the surface of a record carrier covered with a thin metallic layer preferably consisting of aluminum.
During the electrographic printing on a foil covered with an aluminum layer or on paper covered with an aluminum layer and a lacquer layer, it is necessary for the print electrodes to be in direct electric contact with the aluminum layer.
Almost all printers are designed for continuous printing, i.
e.
, there is always a relative movement between the print electrodes and the aluminum-coated record carrier.
The electric contact between the electrodes and the aluminum-coated record carrier must also be ensured during this relative movement, i
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Molecular Biology 
