Reductive total chlorine free photochemical bleaching of cellulosic fabrics, an energy conserving process

Akihiko Ouchi, Toru Obata, Takeshi Oishi, Hitoshi Sakai, Teruyuki Hayashi, Wataru Ando, Jun Ito

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13 Citations (Scopus)


Water-insoluble natural colored compounds adsorbed or chemically bound on cellulosic fabrics were bleached effectively at room temperature by a selective photolysis of the colored compounds using various excimer lasers (ArF, KrF, XeCl, XeF), a low-pressure mercury lamp, and a black-light fluorescent lamp in the presence of aqueous solutions of various reducing reagents. Sodium borohydride gave the best efficiency on the bleaching when KrF, XeCl, XeF excimer lasers or a low-pressure mercury lamp were used as light sources and the efficiency of the bleaching was found to be comparable to that of the conventional thermal bleaching processes.

Original languageEnglish
Pages (from-to)198-205
Number of pages8
JournalGreen Chemistry
Issue number4
Publication statusPublished - 2004 Apr


ASJC Scopus subject areas

  • Environmental Chemistry
  • Pollution

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