Fibers, a process for preparing the same and product thereof
AssigneeNew Japan Chemical Co., Ltd.
InventorsKango Fujitani, Yoko Fukuyama, Toshio Watanuki, Hiroyuki Miura, Yutaka Tsujimoto, Kazuhisa Honda, Yoshitaka Uno, Yoshiaki Sakai
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Abstract
The present invention relates to cellulose fibers excellent in dirt removability and a method of treatment thereof. The cellulose fibers of the invention are liquid ammonia-treated cellulose fibers whose partial or entire exterior is coated with an ester of (A) a polycarboxylic acid having at least three carboxyl groups and (B) a hydrophilic polyol having an oxyethylene group or groups and at least two alcoholic hydroxyl groups and/or which fibers are impregnated with the ester.
Claims13
Liquid ammonia-treated cellulose fibers whose partial or entire exterior is coated with an ester of (A) a polycarboxylic acid having at least three carboxyl groups and (B) a hydrophilic polyol having an oxyethylene group or groups and at least two alcoholic hydroxyl groups and/or which fibers are impregnated with said ester.
A process for preparing liquid ammonia-treated cellulose fibers comprising the steps of treating cellulose fibers with liquid ammonia, depositing an ester of (A) a polycarboxylic acid having at least three carboxyl groups and (B) a hydrophilic polyol having an oxyethylene group or groups and at least two alcoholic hydroxyl groups on the partial or entire exterior of the liquid ammonia-treated cellulose fibers and/or impregnating said fibers with said ester, and heating said fibers.
A process for preparing liquid ammonia-treated cellulose fibers comprising the steps of treating cellulose fibers with liquid ammonia, depositing polycarboxylic acid having at least three carboxyl groups and hydrophilic polyol having an oxyethylene group or groups and at least two alcoholic hydroxyl groups on the partial or entire exterior of the liquid ammonia-treated cellulose fibers, and/or impregnating said fibers with said polycarboxylic acid and said hydrophilic polyol, and heating said fibers.
A product of cellulose fibers prepared by treating cellulose fibers with liquid ammonia, making the liquid ammonia-treated fibers into a product thereof, depositing an ester of (A) a polycarboxylic acid having at least three carboxyl groups and (B) a hydrophilic polyol having an oxyethylene group or groups and at least two alcoholic hydroxyl groups on the partial or entire exterior of the liquid ammonia-treated cellulose fibers, and/or impregnating said fibers with said ester, and heating said fibers.
A product of cellulose fibers prepared by treating cellulose fibers with liquid ammonia, making the liquid ammonia-treated fibers into a product thereof, depositing polycarboxylic acid having at least three carboxylic groups and hydrophilic polyol having an oxylethylene group or groups and at least two alcoholic hydroxyl groups on the partial or entire exterior of the liquid ammonia-treated cellulose fibers, and/or impregnating said fibers with said polycarboxylic acid and said hydrophilic polyol, and heating said fibers.
Dependencies are inferred from the claim text.