Process for modifying regenerated cellulose fiber
AssigneeAsahi Kasei Kogyo Kabushiki Kaisha
InventorsTakeo Ohshima, Shigeki Ohtani
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Abstract
A process for producing a regenerated cellulose fiber having a good hand and a good shrink resistance characterized by attaching a liquid not readily soluble in liquid ammonia and adsorbable on regenerated cellulose fiber to the surface of regenerated cellulose fiber or attaching a polymer to the surface of regenerated cellulose fiber in the form of a film or not carrying out the surface treatment mentioned above, and adjusting the moisture content of said regenerated cellulose fiber to 5% or more based on the absolute dry weight of said fiber, and thereafter impregnating said regenerated cellulose fiber with liquid ammonia, and subsequently removing the ammonia from the regenerated cellulose fiber.
Claims14
A process for producing a regenerated cellulose fiber having a good hand and a good shrink resistance comprising applying a liquid not readily soluble in liquid ammonia and adsorbable on regenerated cellulose fiber to the surface of regenerated cellulose fiber or attaching a polymer to the surface of regenerated cellulose fiber in the form of a film, adjusting the moisture content of said regenerated cellulose fiber to 5% or more based on the absolute dry weight of said fiber, thereafter contacting said regenerated cellulose fiber with liquid ammonia, and subsequently removing the ammonia from the regenerated cellulose fiber.
Dependencies are inferred from the claim text.