Electric heating – Metal heating – Of cylinders
Patent
1989-03-22
1990-04-03
Leung, Philip H.
Electric heating
Metal heating
Of cylinders
219 1055F, 219 1055M, 426107, 426234, 426243, 99DIG14, 428 342, 427288, H05B 664
Patent
active
049142666
ABSTRACT:
Paperboard packaging material is disclosed for use in the manufacture of cartons for heating and browning food in a microwave oven. In accordance with the present invention, a pattern of microwave susceptor is printed on paperboard packaging material using a susceptor-ink composition in the areas where the food is to be browned. The susceptor-ink composition comprises an ink vehicle into which there is incorporated a conductive carbon material such as graphite or carbon black as the susceptor material. The preferred printing process is by gravure, and the printed susceptor is overcoated with an FDA approved food contacting coating.
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Parks Christopher J.
Wolfe Kenneth J.
Leung Philip H.
Westvaco Corporation
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