Process for treating cellulosic materials by liquid ammonia
AssigneeOmnium de Prospective Industrielle, S.A.
InventorJean-Paul Dalle
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Abstract
An improved process for treating fabrics and similar cellulosic materials with liquid ammonia by conventional methods to achieve improved properties, which improvement consists of subjecting the fabric to pneumatic squeezing by means of a compressed gaseous ammonia stream.
Claims8
In a process for treating a fabric composed in part or totally of natural or regenerated cellulosic material by impregnation with liquid ammonia followed by removal of said ammonia from said fabric, the improvement comprising initially eliminating at least a substantial portion of said ammonia from said fabric by subjecting the fabric to pneumatic drying independent of heating by means of a compressed gaseous ammonia stream.
Dependencies are inferred from the claim text.