Now showing items 1-13 of 13

  • Acció enzimàtica sobre l'elastina d'un cuir curtit al crom 

    Solé Ferrer, Maria Mercè (Universitat Politècnica de Catalunya, 2001-07)
    Master thesis (pre-Bologna period)
    Open Access
    L'estudi tècnic va començar amb un seguiment de l'activitat enzimàtica damunt d'un substrat artificial, pols d'elastina. El curs de la reacció va ser seguit per mitjà d'assaig espectrofotomètric. A partir dels resultats ...
  • A dehydration process for ovine hide to obtain a new collagenous material 

    Ollé Otero, Lluís; Sorolla, Silvia; Casas Solé, Concepció; Bacardit Dalmases, Anna (2014-04-09)
    Article
    Restricted access - publisher's policy
    The aim of the present work is to develop a dehydration process for ovine hide to obtain a new collagenous material for use in the leather industry. What is obtained through this new process is a dry and very porous ...
  • Alternative fungicides for the leather industry: application in various processes 

    Cuadros Domènech, Sara; Manresa Presas, Mª Angels; Font Vallès, Joaquim; Puig Vidal, Rita; Marsal Monge, Agustí (2012)
    Article
    Restricted access - publisher's policy
    Increasingly stringent environmental legislation and indispensable use of fungicides in the tanning industry obliges tanners to adapt their processes to alternative technologies with lower environmental impact, including ...
  • 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 ...
  • Comparisonof the effect of the tropical test on both chrome-tanned and wet-white upholstery leather 

    Ollé Otero, Lluís; Jorba Rafart, Montse; Font Vallès, Joaquim; Bacardit Dalmases, Anna (2011)
    Article
    Restricted access - publisher's policy
    Automotive upholstery leather can undergo extreme environmental conditions that may cause premature ageing. Leather is strongly affected by three main environmental parameters: temperature,relative humidity and UV radiation. ...
  • Estudio de un pelambre reductor-oxidante 

    Gavilanes Tutiven, Rosa Maria (Universitat Politècnica de Catalunya, 2011-06)
    Master thesis (pre-Bologna period)
    Open Access
  • 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 ...
  • Low carbon products to design innovative leather processes. Part II: determination of the optimal physical modification of tara 

    Ollé Otero, Lluís; Casas, Concepció; Diaz, Jorge; Sorolla, Sílvia; Bacardit Dalmases, Anna (2014-01-01)
    Article
    Restricted access - publisher's policy
    This study considers the fruit of the tara bush as a sustainable source for tanning agents and proposes alternatives to chromium and other mineral salts and vegetable extracts. Specifically, physical modifications have ...
  • Presence of Chromium (VI) in sheepskins: influence of tanney processes 

    Lalueza Baro, Joana (1999-04)
    Article
    Restricted access - publisher's policy
    In this work, the results of a preliminary study on the influence exerted by neutralization, washing, ageing and vegetable retanning on chromium (VI) content in sheepskins are presented. In neutralization, the presence of ...
  • Prevention of chromium(VI) formation by improving the tannery processes 

    Font Vallès, Joaquim; Rius Carrasco, Antoni; Marsal Monge, Agustín; Hauber, Christiane; Tommaselli, Michelle (2006)
    Conference report
    Restricted access - publisher's policy
    This work has been funded by the European Commission through the Chrom6less Project (CRAFT -1999-71638). The objectives of the project were: - Establishment of the analytical methodology which provided reproducible results ...
  • Salinity reduction in the production of nappa skins by using agents with non-swelling capacity in pickling/tanning 

    Marsal Monge, Agustín; Rius Carrasco, Antoni; Cot Cosp, Jaume; Lalueza Baro, Joana; Ramón, Palop; Font Vallès, Joaquim (2005)
    Article
    Restricted access - publisher's policy
  • Salt determination in salted bovine hide 

    Morera Prat, Josep Maria; Soler Solé, Jaume; Saborit, Mercè (2014-11)
    Article
    Restricted access - publisher's policy
    In this work, a simple and inexpensive method has been developed to determine the amount of salt contained in a salted raw hide. Two different systems of analysis have been tested. In both methods, salt is removed by ...
  • Tara (Caesalpinia spinosa): The sustainable source of tannins for innovative tanning processes 

    Castell, Joan Carles; Sorolla Casellas, Sílvia; Jorba, Montse; Aribau, Joaquim; Bacardit Dalmases, Anna; Ollé Otero, Lluís (2011)
    Conference report
    Open Access
    This study considers the fruit of the tara tree as a sustainable source for tanning agents and proposes alternatives to the commercial mineral salts and vegetable extracts to comply with environment and social concerns. ...