Abstract

At the replacement of water contained in fiber with acetic anhydride vapor, the rate and ratio of the replacement are scarecely affected by inner structure of fibers so long as they are consisted of cellulose. The replacement ratio is affected by the nature of the contained liquids, the vapors, liquid content and the temperature. In acetylated fibers, the ratio varies with acetylation degree. It seems that a correlation exists between the ratio and affinity of vapors for fibers.

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