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AssigneeFuji Spinning Co., Ltd.
InventorsItsuo Kurahashi, Masatoshi Kudou, Hiroaki Tanibe, Koji Ando
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The present invention simplifies the complicated dyeing process using a naphthol dye, and provides a modified regenerated cellulose fiber which enables dyeing in different colors by combining the modified regenerated cellulose fiber and other fibers by means of mixed spinning or union knitting/weaving. A modified regenerated cellulose fiber can be obtained by containing 0.5-3.0% by weight of a grounder of naphthol dye to the regenerated cellulose fiber in a matrix consisting of the regenerated cellulose fiber, wherein the grounder is selected from the group having a medium to high level of affinity to the regenerated cellulose fiber. A variety of dyed fiber products can be obtained by treating yarn or knitted/woven fabric made of the above modified regenerated cellulose fiber with a developer of naphthol dye.
Colored cellulose products which are obtained by the steps of
Colored cellulose products obtained by mixing or knitting/weaving modified regenerated cellulose fiber containing a grounder of naphthol dye with other cellulose-based fiber, and then dyeing the mixture of the cellulose fibers, by using a mixed solution of salts as a developer of naphthol dye.
Colored cellulose product obtained by mixing or knitting/weaving modified regenerated cellulose fiber containing a grounder of naphthol dye with other cellulose-based fiber to produce cellulose products and dyeing the cellulose products by using a mixed solution of salts as a developer of naphthol dye, and then further dyeing them by a reactive dye.
A method for dyeing regenerated cellulose products comprising the steps of:
Dependencies are inferred from the claim text.