| 摘要 |
PROBLEM TO BE SOLVED: To provide a recyclable flag, a decoloring method thereof, and a recycling method of a flag. SOLUTION: A flag made of polyester fiber fabric printed by a disperse dye like an azo disperse dye, a benzodi-furanone disperse dye, or a phthalimide disperse dye is treated by a treatment liquid for decoloring, which contains an alkali agent, a reducing agent, and a nonionic surfactant, and the decolored flag is used as a material of chemical recycling or material recycling. COPYRIGHT: (C)2009,JPO&INPIT
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