Drying of wool slivers

Textile fibers, for example wool slivers, are dried by passing them through a series of co-axial loop electrodes energized at a radio frequency preferably above 10 MHz to effect dielectric heating, successive electrodes along the path being at opposite polarity. The material is carried on an aportio...

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Bibliographic Details
Main Authors HODGETT; DAVID LOWRY, FUNG; HARRY, LAWTON; JAMES
Format Patent
LanguageEnglish
Published 22.04.1975
Subjects
BLASTING
DRYING
DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
HEATING
LAUNDERING
LIGHTING
MECHANICAL ENGINEERING
TEXTILES
TREATMENT OF TEXTILES OR THE LIKE
WEAPONS
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Summary:Textile fibers, for example wool slivers, are dried by passing them through a series of co-axial loop electrodes energized at a radio frequency preferably above 10 MHz to effect dielectric heating, successive electrodes along the path being at opposite polarity. The material is carried on an aportioned endless belt of resin-bonded glass fibre material. Simultaneously a stream of hot air is directed over or through the fibre material. Sensing means at the fibre outlet sense the moisture content and control the radio frequency power. A fibre break detection at the film entry switches off the radio frequency power in the event of a fibre break and also reduces the speed of traverse so that the material in the apparatus is dried by the hot air.
Bibliography:Application Number: US19720300551