Coating processes – Transfer or copy sheet making – Coating opposite sides or forming plural or nonuniform coats
Reexamination Certificate
2005-06-10
2010-11-16
Hess, Bruce H (Department: 1785)
Coating processes
Transfer or copy sheet making
Coating opposite sides or forming plural or nonuniform coats
C427S366000, C503S200000
Reexamination Certificate
active
07833573
ABSTRACT:
The invention relates to a method for producing thermosensitive recording material, comprising a carrier substrate and a thermal reaction layer containing a color former and a color developer. According to the invention, an application suspension, containing the starting materials of the thermal reaction layer, is applied to the carrier substrate and the carrier substrate is subsequently dried with the applied application suspension. Then the dried carrier substrate with the applied thermal reaction layer is guided through a smoothing mechanism in order to be smoothed, wherein the dried carrier substrate with the applied thermal reaction layer is pressed extensively against a roller by means of a predetermined contact pressure. The invention also relates to a recording material which is produced according to the inventive method.
REFERENCES:
patent: 4865939 (1989-09-01), Usami et al.
patent: 5068133 (1991-11-01), Matsumoto et al.
patent: 197 15 345 (1998-10-01), None
patent: 101 57 690 (2003-02-01), None
patent: 1 593 778 (2005-11-01), None
Boschert Michael
Streif Georg
Fay Sharpe LLP
Hess Bruce H
Papierfabrik August Koehler AG
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