Two-color thermosensitive recording label

Details Two-color thermosensitive recording label Two-color thermosensitive recording label

1985-07-29

1987-01-20

Hess, Bruce H.

Recorders

Record receiver deforming

346205, 346206, 427152, 428 40, 428341, 428342, B41M 518

Patent

active

046383409

ABSTRACT:
A two-color thermosensitive recording label capable of forming two different colors when heated at different temperatures is disclosed, which comprises: (a) a support material and the following layers successively formed thereon, (b) a first thermosensitive coloring layer which is colored in a first color at a predetermined high temperature T, formed on one side of the support material, (c) a decolorizing layer containing a decolorizing agent, (d) an intermediate layer, (e) a second thermosensitive coloring layer, which is colored in a second color at a predetermined low temperature, the second color being decolorized by the decolorizing agent when heated to a predetermined temperature, so that the color developed in the second thermosensitive coloring layer is prevented from being mixed with the color developed in the first thermosensitive coloring layer, and the second thermosensitive coloring layer and the second color are protected from the decolorizing layer by the intermediate layer so long as the second thermosensitive coloring layer is not heated up to the predetermined temperature, (f) a protective layer for protecting the second thermosensitive coloring layer, (g) an adhesive layer formed on the other side of the support, and (h) a disposable backing sheet which is attached to the adhesive layer.

REFERENCES:
patent: 3916068 (1975-10-01), Kohmura et al.

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