The reaction damping of the combination tannage

Yajuan Wang, Kaiqi Shi, Wei Liu, Zhihua Shan

Research output: Chapter in Book/Conference proceedingConference contributionpeer-review


The role of penetration and bond situation of cross-linking agents at different tanning stage on the apparent and thermal properties of sheepskin collagen fibre has been studied. The pickled sheepskins were tanned with basic chrome sulfate (BCS), ferrous sulfate (FS), mimosa-chrome sulfate (MCS) and mimosa-ferrous sulfate (MFS), and thermal stability of the modified fibres were researched using shrinkage temperature. The absorbing degree of crosslinking agents in the solvent were analysed by the variable trend of the agents' absorbancy with time. The results show that in the time range is 10 min to 120 min, the concentratiomn of crosslinking agents in the tanning solution would decrease with the increase of tanning time, and mimosa crosslinking agent is the most obvious. During the first 60 min, its absorptivity from tanning liquor can almost reach to 90%. The shrinkage temperature (Ts) reveals that thermal stability of modified collagen has been enhanced by the crosslinking agents. Ts of leather tanned with BCS, MCS and MFS were 98.6°C, 95.2°C and 108.9°C.

Original languageEnglish
Title of host publicationIULTCS 30th Global Congress
PublisherInternational Union of Leather Technologists and Chemists Societies (IULTCS)
ISBN (Electronic)9780000000002
Publication statusPublished - 2009
Externally publishedYes
EventIULTCS 30th Global Congress - Beijing, China
Duration: 11 Oct 200914 Oct 2009

Publication series

NameIULTCS 30th Global Congress


ConferenceIULTCS 30th Global Congress


  • Bond
  • Collagen
  • Cross-linking agents
  • Damping
  • Penetration
  • Thermal stability

ASJC Scopus subject areas

  • Industrial and Manufacturing Engineering


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