직/편성물 염색

Removal of Disperse Dyestuffs from Effluent Liquors with the Help of Cationic Polymers.

  • 출판일1996.02
  • 저자
  • 서지사항
  • 등록일 2016.11.02
  • 조회수 258
The addition of cationic precipitants facilitates the decoloration of effluents containing reactive dyes. The behavior of these precipitants in dyebath effluents containing nonionic and/or anionic dyes, however, is not well understood. Researchers added a cationic polymer precipitant with quaternary ammonium chloride groups and a molecular mass of 17,000 to an effluent containing three anionic substances: sodium alginate, sodium carboxymethylcellulose, and the sodium salt of methylene bis-naphthalene sulfonic acid. After filtration, a Spekord M 40 spectrophotometer evaluated the color of the solutions. The spectra indicated effective decoloration of disperse dye solutions in the concentration range from 0.05 to 1.0 gram per liter. 16 refs.
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