Apparatus and method for impregnating a dry fiber batt

Details Apparatus and method for impregnating a dry fiber batt Apparatus and method for impregnating a dry fiber batt

D - Textiles, Paper

06

B

8/120, 68/6.4

D06B 21/00 (2006.01) D06B 3/20 (2006.01) D06B 5/08 (2006.01)

Patent

CA 1131414

ABSTRACT OF THE DISCLOSURE A method and apparatus for impregnation of a dry fabric is disclosed including a purging device which is provided immediately upstream of a supply of liquid within an impregnation tank. The purging device urges a condensable gas through the dry fabric immediately prior to entry of the fabric into the liquid with the purging device providing a pressure differential across the fabric. The fabric is preferably conveyed by a first endless conveyor belt through a passageway of the purging device and subsequently into the impregnating liquid and beneath a first squeeze roller. The purging device displaces the non-condensable gas or air within the fabric with a condensable gas preferably steam.

344093

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