Method of manufacturing heat sensitive recording material...

Details Method of manufacturing heat sensitive recording material... Method of manufacturing heat sensitive recording material...

2006-01-10

2006-01-10

Hess, Bruce H. (Department: 1774)

Record receiver having plural interactive leaves or a colorless

Having a colorless color-former, developer therefor, or...

Identified organic electron acceptor other than phenolic resin

C503S216000, C503S221000, C503S225000

Reexamination Certificate

active

06984608

ABSTRACT:
The present invention relates to a method of manufacturing heat sensitive recording material for the bar code reader wavelength range of 660–690 nm, the recording material containing a base layer and a coating, and the coating containing at least a color former and a developer. The method of the invention is characterized in that the color former and the developer are selected so that when the reflectance of the color former-developer compound on the recording material is determined, it remains below a target curve determined with a function Hp=1.775*Ap22*10−61, where Hp is the reflectance percent and Ap the wavelength (nm) used in the bar code reader.

REFERENCES:
patent: 4916111 (1990-04-01), Yaguchi et al.
patent: 5084593 (1992-01-01), Gotoh et al.
patent: 5250493 (1993-10-01), Ueda et al.
patent: 0 546 836 (1993-06-01), None
patent: 0 968 837 (2000-01-01), None

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