Now showing items 1-8 of 8

  • Biodegradation of leather tanned with inorganic salts 

    Bacardit Dalmases, Anna; Jorba, Montse; Font Vallès, Joaquim; Shendrik, Alexander; Ollé Otero, Lluís (2011-04-14)
    Article
    Restricted access - publisher's policy
    This paper aims to evaluate the physical, chemical and biological processes associated with the deterioration of leather tanned with inorganic salts. The samples of leather were exposed during eight months to outdoor ...
  • Biodegradation of wet-white leather 

    Ollé Otero, Lluís; Jorba Rafart, Montse; Font Vallès, Joaquim; Shendrik, Alexander; Bacardit Dalmases, Anna (2011)
    Article
    Restricted access - publisher's policy
    This paper deals with the study of the physical, chemical and biological processes associated with the deterioration of wet-white leather. The samples of leather were exposed for eight months to outdoor weathering and ...
  • Determination of penetration and fixation curves of leather using humic derivatives 

    Bacardit Dalmases, Anna; Shendrik, Alexander; Morera Prat, Josep Maria; Bou Serra, Jordi; Ollé Otero, Lluís (2012-06-18)
    Article
    Restricted access - publisher's policy
    This study examines the behavior of three different types of humic acids (natural humic acids, regenerated humic acids, and sulphited humic acids) with regard to their penetration and fixation to the leather. More specifically, ...
  • Humic acid derivatives as tanning and retanning agents 

    Bacardit Dalmases, Anna; Morera Prat, Josep Maria; Shendrik, Alexander; Jorge Sánchez, Juan; Ollé Otero, Lluís (2012-04-02)
    Article
    Restricted access - publisher's policy
    This study examines the behaviour of three types of humic acids (natural humic acids, regenerated humic acids, and sulphited humic acids) with regard to their capacity to be used as tans and retans. The study makes use of ...
  • Study of cross-linking reactions of epoxy compounds 

    Bacardit Dalmases, Anna; Shendrik, Alexander; Combalia Cendra, Felip; Jorge Sánchez, Juan; Ollé Otero, Lluís (2011)
    Conference report
    Restricted access - publisher's policy
    Nowadays, the leather industry needs to produce a very wide range of finished articles with different levels of performance to increase their competitiveness while minimizing their environmental impact. To reduce the ...
  • Study of cross-linking reactions of polysilanes 

    Shendrik, Alexander; Bacardit Dalmases, Anna; Ollé Otero, Lluís (2011)
    Conference report
    Restricted access - publisher's policy
    Nowadays, there are four types of commercially available cross-linkers for the leather industry: polyaziridines, polyisocyanates, polycarbodiimides and epoxy compounds. All these products present different chemical reactivity ...
  • Study of cross-linking reactions on butadiene binders in aqueous finishing 

    Bacardit Dalmases, Anna; Shendrik, Alexander; Combalia Cendra, Felip; Jorge Sánchez, Juan; Ollé Otero, Lluís (2010-12-14)
    Article
    Restricted access - publisher's policy
    Butadienes, like acrylic binders and polyurethanes, can be cross-linked to improve their wet fastness properties. Nowadays, four types of cross-linkers for leather finishing are available: polyaziridines,polyisocyanates, ...
  • Synthesis of highly carboxylate acrylic resins for leather impregnation 

    Ollé Otero, Lluís; Solé, M.M.; Shendrik, Alexander; Labastida, L.; Bacardit Dalmases, Anna (2012-01-11)
    Article
    Restricted access - publisher's policy
    This work describes the synthesis of new leather finishing acrylic resins. Four resins ware synthesized varying the concentration of ethyl acrylate, and metracrylic acid. Sodium lauryl sulphate was used as emulsifying ...