Effect of calcium and magnesium ions on the zeta potential of silk during dyeing

K. W. Yeung, Songmin Shang

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

1 Citation (Scopus)


The action of Ca2+ or Mg2+ on silk dyeing with reactive dye was influenced by the electrokinetic properties of silk. Under acidic conditions, the positive potential of silk was lower and there was a drop in dye adsorption. Under alkaline conditions, the negative zeta potential of silk results in a strong barrier for dye anions. Ca2+ or Mg2+ would decrease the zeta potential of silk fiber with a resultant increase of dye. At isoelectric point, the cations had a little effect on the zeta potential, near zero of silk fiber. The influence of dye adsorption was also found to be minimal.
Original languageEnglish
Title of host publicationWorld Conference of the Textile Institute, Proceedings
PublisherTextile Inst
Number of pages2
Publication statusPublished - 1 Jan 1997
EventProceedings of the 1996 77th World Conference of the Textile Institute. Part 1 (of 2) - Tampere, Finland
Duration: 22 May 199624 May 1996


ConferenceProceedings of the 1996 77th World Conference of the Textile Institute. Part 1 (of 2)

ASJC Scopus subject areas

  • Materials Science(all)

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