Exploració per tema "Hides and skins"

Ara es mostren els items 1-13 de 13

    • 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
      Accés restringit per política de l'editorial
      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 ...

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

      Solé Ferrer, Maria Mercè (Universitat Politècnica de Catalunya, 2001-07)
      Projecte/Treball Final de Carrera
      Accés obert
      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 ...

    • 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
      Accés restringit per política de l'editorial
      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
      Accés restringit per política de l'editorial
      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
      Accés restringit per política de l'editorial
      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)
      Projecte/Treball Final de Carrera
      Accés obert

    • 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
      Accés restringit per política de l'editorial
      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
      Accés restringit per política de l'editorial
      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
      Accés restringit per política de l'editorial
      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)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      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
      Accés restringit per política de l'editorial

    • Salt determination in salted bovine hide 

      Morera Prat, Josep Maria; Soler Solé, Jaume; Saborit, Mercè (2014-11)
      Article
      Accés restringit per política de l'editorial
      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)
      Text en actes de congrés
      Accés obert
      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. ...