Universal product code marking composition containing a photosen

Details Universal product code marking composition containing a photosen Universal product code marking composition containing a photosen

1976-09-22

1977-06-14

Louie, Jr., Won H.

Gas separation: apparatus

Electric field separation apparatus

Electrode cleaner, apparatus part flusher, discharger, or...

96 48QP, 96 27R, 96 90R, 106 21, G03C 524, G03C 152

Patent

active

040295060

ABSTRACT:
Described are a marking composition of a color-forming, radiation-sensitive component, a diffusely reflecting pigment and a binder, and a process for the use of the same comprising coating a product surface with the marking composition; exposing the coating to a pattern of radiation to form a marking; and then reading the marking with a diffuse reflectance scanning means.

REFERENCES:
patent: 3578450 (1971-05-01), Miller et al.
patent: 3615454 (1971-10-01), Cescon et al.
patent: 3658543 (1972-04-01), Gerlach et al.
patent: 3660086 (1972-05-01), Tamai et al.
patent: 3736142 (1973-05-01), Kaspaul et al.
patent: 3810763 (1974-05-01), Laridon et al.
patent: 3871886 (1975-03-01), Robillard et al.
patent: 3940275 (1976-02-01), Brockett et al.

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