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

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

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
Volume6
Issue number4
DOIs
Publication statusPublished - 2004 Apr
Externally publishedYes

Fingerprint

Chlorine
bleaching
Bleaching
Mercury vapor lamps
chlorine
Excimer lasers
low pressure
laser
Fluorescent lamps
Photolysis
photolysis
Light sources
aqueous solution
Sodium
sodium
Water
lamp
fabric
energy process
temperature

ASJC Scopus subject areas

  • Chemistry(all)

Cite this

Reductive total chlorine free photochemical bleaching of cellulosic fabrics, an energy conserving process. / Ouchi, Akihiko; Obata, Toru; Oishi, Takeshi; Sakai, Hitoshi; Hayashi, Teruyuki; Ando, Wataru; Ito, Jun.

In: Green Chemistry, Vol. 6, No. 4, 04.2004, p. 198-205.

Research output: Contribution to journalArticle

Ouchi, Akihiko ; Obata, Toru ; Oishi, Takeshi ; Sakai, Hitoshi ; Hayashi, Teruyuki ; Ando, Wataru ; Ito, Jun. / Reductive total chlorine free photochemical bleaching of cellulosic fabrics, an energy conserving process. In: Green Chemistry. 2004 ; Vol. 6, No. 4. pp. 198-205.
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