Radiant energy – Invisible radiant energy responsive electric signalling – Infrared responsive
Patent
1989-09-22
1990-10-23
Fields, Carolyn E.
Radiant energy
Invisible radiant energy responsive electric signalling
Infrared responsive
250341, 2503591, G01N 2135
Patent
active
049654527
ABSTRACT:
The printability of paper coated with kaolinite clay is dependent upon the flatness of kaolinite alumino-silicate clay platelets on the surface thereof. The flatness is determined by calculating the ratio of two infrared absorption bands from two specific types of structural hydroxyls characteristic of kaolinite clay platelet crystals.
REFERENCES:
patent: 4124803 (1978-11-01), Bowers
Fields Carolyn E.
Mulholland John H.
Process Automation Business Inc.
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