직/편성물 염색

Dyestuffs and Ecology: Some Myths Exploded.

  • 출판일1996.06
  • 저자
  • 서지사항
  • 등록일 2016.11.02
  • 조회수 266
A review discusses the use of dyes to color textile materials and the subsequent process waste generated. Problems encountered in the industry, including the use of natural dyes, are reviewed. Natural dyes are generated primarily from vegetable sources, but include animal sources. Extraction of dye from these sources is time consuming and may create significant waste problems. For example, the majority of natural dyes are ordant dyes, requiring application with a metal salt to assist in fixation. Use of heavy metals will increase toxic waste generation and further complicate waste effluent treatment. Recent German regulations have banned the use of certain consumer goods containing azo dyes, due to their carcinogenicity. Although this regulation has an international impact, there is no international list of banned dyes. 7 refs.
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