Impregnation of Hydroxy-Anthraquinone Compounds into Polypropylene Fabrics by scCO2 and the Sorption Ability for Metal Ions

Anelise Ehrhardt; Isao Tabata; Kenji Hisada; Teruo Hori

doi:10.2115/fiber.61.201

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Impregnation of Hydroxy-Anthraquinone Compounds into Polypropylene Fabrics by scCO₂ and the Sorption Ability for Metal Ions

Anelise Ehrhardt, Isao Tabata, Kenji Hisada, Teruo Hori

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JOURNAL FREE ACCESS

2005 Volume 61 Issue 7 Pages 201-203

DOI https://doi.org/10.2115/fiber.61.201

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Abstract

Woven polypropylene fabrics were impregnated with hydroxy-anthraquinone (HAQ) derivatives compounds by supercritical carbon dioxide where the HAQ worked as a dyestuff. The HAQ-impregnated fabrics were tested to adsorb metal ions dissolved in water forming the “dye-metal chelate” under specific conditions of pH for one selected metal ion. The metal ions are believed to be trapped around the HAQ molecules by the hydroxyl groups, working as a mordant dyeing.

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