Cellulosic materials having composite crystalline structure
AssigneeSK Chemicals Co., Ltd.
InventorsIk Soo Kim, Jong Soo An, Byung Hak Kim
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Abstract
Disclosed is a novel rayon fiber which possesses characteristics similar to those of a viscose rayon fiber as to be suitable for use in clothes in addition to being produced at an economical cost. The rayon fiber is prepared from a cellulose acetate fiber with a degree of substitution of 2.0 or higher by saponifying 75% or greater of the total acetyl groups of the cellulose acetate fiber into hydroxyl groups and has a composite crystalline structure of cellulose II and IV.
Claims6
A rayon fiber, possessing a composite crystalline structure of cellulose II and IV, which is prepared by saponifying 75% or greater of the total acetyl groups of a cellulose acetate fiber.
Dependencies are inferred from the claim text.