Fixation of Reactive Dyes on Ink-jet Dyeing

  • Urakawa, Hiroshi (Faculty of Engineering & Design, Kyoto Institute of Technology) ;
  • Tamura, Kyoko (Faculty of Engineering & Design, Kyoto Institute of Technology) ;
  • Yasukawa, Ryoko (Faculty of Engineering & Design, Kyoto Institute of Technology) ;
  • Ueda, Mitsuo (Faculty of Textile Science, Kyoto Institute of Technology) ;
  • Kajiwara, Kanji (Faculty of Home Economics, Otsuma Women′s University)
  • Published : 2003.10.01

Abstract

The fixation of reactive dyes onto cotton fabrics by means of dry heat treatment was examined in terms of water regain in fabrics. Dye liquors were applied to fabrics by ink-jet printer. The fixation strongly depended on water regain. At certain level of water regain the fixation showed stepwise increase. After this point the fixation reached to saturated value. The observed results were interpreted by the aggregation behavior of dyes and reactivity of hydroxyl group of cellulose depending on the amount of the surrounding water molecules. Urea molecules played a role of water at low water regain to increase the fixation.

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