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US 4,397,911 AGranted
Cleaning tape
AssigneeFuji Photo Film Co., Ltd.
InventorsGoro Akashi, Masaaki Fujiyama
Life of this patent
Estimating the term…
Abstract
Cleaning tape having a cleaning layer formed on one or both sides of a base is disclosed. Said cleaning layer is composed of (1) a binder, (2) an organic polymer powder whose particle size is 3.mu. or more, and (3) an inorganic solid powder whose particle size is 3.mu. or less.
Claims10
A cleaning tape, comprising:
- a base;
- and
- a cleaning layer on said base, said cleaning layer comprised of (1) a binder, (2) an organic polymer powder having a particle size of at least 3 microns, and (3) an inorganic solid powder having a particle size of no more than 3 microns, wherein the weight ratio of the organic polymer powder to the inorganic solid powder is from 1:10 to 10:1, wherein said base has a thickness of up to 25 microns, wherein said cleaning tape is an audio or video tape recorder cleaning tape.
Dependencies are inferred from the claim text.