Apparatus and method for drying or curing web materials and coat

Details Apparatus and method for drying or curing web materials and coat Apparatus and method for drying or curing web materials and coat

1996-12-11

1998-09-29

Bennett, Henry A.

Drying and gas or vapor contact with solids

Material treated by electromagnetic energy

Radio or high-frequency energy

34629, 34640, F26B 334

Patent

active

058131345

ABSTRACT:
A radio frequency (RF) assisted flotation air bar dryer apparatus and method for drying and/or curing a traveling web includes RF generating means for delivering RF through field and RF stray field to the web to heat the web, air bars to direct air flow to the web for cooling to facilitate emission of moisture therefrom and to avoid blistering due to overheating, an RF field reflector to reflect RF energy to the web, and a control system to monitor and to control air temperature and/or flow, RF field strength, and/or web temperature to maintain a balance between heating and cooling to obtain efficient high speed drying while avoid damage to the web.

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