Disazo compound and method for dyeing using same |
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| 申请号 | JP9436386 | 申请日 | 1986-04-23 | 公开(公告)号 | JPS62250060A | 公开(公告)日 | 1987-10-30 |
| 申请人 | Mitsubishi Chem Ind Ltd; | 发明人 | HIMENO KIYOSHI; HIBARA TOSHIO; | ||||
| 摘要 | NEW MATERIAL:A water-soluble disazo compound expressed by formula I (Dz is benzene ring or naphthalene ring which may be substituted with methyl, methoxy or sulfonic acid group; R is H, methyl, carbamoyl or COOH; A - is anion) as a free acid. EXAMPLE: The compound of formula II. USE: A dye for coloring cellulosic fiber, polyamide, wool, silk, etc., in orange to scarlet color. Suitable especially for the use in combination with a disperse dye for polyester in a one-bath one-stage dyeing of a P/C fiber. Suitable also as a dye for ink jet printer. PREPARATION: For example, 1mol of the dye of formula III is condensed with 1mol of the dye of formula IV to form a disazo compound of formula V, which is made to react with the compound of formula VI in an aqueous medium at 70W100°C. COPYRIGHT: (C)1987,JPO&Japio |
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