Title: Chrome saving and chrome rich tanning method
Application Number: 93116221 Application Date: 1993.08.13
Publication Number: 1082613 Publication Date: 1994.02.23
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: C14C3/06;C14C3/08
Applicant(s) Name: Hoechst Aktiengesellschaft Address:
Inventor(s) Name: Karlheinz Fuchs
Attorney & Agent: HOU TIANJUN
Abstract:
    The present invention relates to a process for economy and plumping chrome tanning by admixing the pelts in the pickle bath with an aldehyde- and/or keto-carboxylic acid and then tanning, which comprises, prior to the addition of the aldehyde- and/or keto-carboxylic acid with or without other organic and/or inorganic acids, pretreating the delimed and bated pelts with an anionic, colloidal silicate solution.
Time: 13