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Copper Salts in the Post-metallization of Non-genotoxic Direct Dyes  

Bae, Jin-Seok (Department of Textile Engineering, Chemistry and Science, North Carolina State University)
Freeman, Harold S. (Department of Textile Engineering, Chemistry and Science, North Carolina State University)
Publication Information
Fibers and Polymers / v.3, no.4, 2002 , pp. 147-152 More about this Journal
Abstract
Copper (II) salts are used as metallizing agents in the synthesis of new non-genotoxic direct dyes for cotton. Specifically, cotton fabric is dyed with non-genotoxic disazo direct dyes and then treated with copper salts. The complexes are characterized by neutron activation analysis, absorption spectrometry and standard Salmonella mammalian mutagenicity assay, and the after-treated fabrics are evaluated for lightfastness and washfastness. Direct dyes possessing ortho-propoxy and ortho'-hydroxy substituted systems formed the corresponding nonmutagenic 1:2 dye:metal complex and undergo significant improvement in lightfastness following metallization.
Keywords
Metallization; Direct dyes; Neutron activation; Lightfastness; Mutagenicity;
Citations & Related Records

Times Cited By Web Of Science : 2  (Related Records In Web of Science)
Times Cited By SCOPUS : 3
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