Now showing items 1-19 of 19

  • Aplicació del píquel en la conservació de la pell vacuna en brut 

    Saborit Martos, Mercè (Universitat Politècnica de Catalunya, 2011-09)
    Master thesis (pre-Bologna period)
    Open Access
    En aquest treball s'ha estudiat el procés de píquel com a mètode de conservació de pells vacunes en brut. Aquest mètode de conservació s'ha comparat amb el mètode tradicional de conservació salant en pila. S'utilitza un ...
  • Auxiliary agents with non-swelling capacity used in pickling/tanning processes. Part 3. 

    Marsal Monge, Agustín; Ramón, Palop; Font Vallès, Joaquim; Cot Cosp, Jaume; Frías, Vicente; Manich Bou, Albert M. (2004)
    Article
    Restricted access - publisher's policy
    In the present work, the behaviour of the four commercial products with non-swelling capacity in the pickling/tanning processes of sheepskins is studied. The successful application of these products to thinner skins would ...
  • 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. ...
  • Comparison of the weathering variables on both chrome-tanned and wet-white leather ageing 

    Ollé Otero, Lluís; Jorba, Montse; Castell, Joan Carles; Font Vallès, Joaquim; Bacardit Dalmases, Anna (2011)
    Conference lecture
    Open Access
    Leather is a natural material that can be used in different environments and often under aggressive environmental conditions that may cause premature ageing. The most important factors influencing the degradation of leather ...
  • Design of a prototype to produce a new collagen material by dehydration 

    Ollé Otero, Lluís; Sorolla, Silvia; Casas, Concepció; Bacardit Dalmases, Anna (2014-01-07)
    Article
    Restricted access - publisher's policy
    The aim of the present work is to develop a prototype to produce a new collagenous material by dehydration for use in the leather industry. What is obtained through this new process is a dry and very porous collagenous ...
  • 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, ...
  • Estudio de un pelambre reductor-oxidante 

    Gavilanes Tutiven, Rosa Maria (Universitat Politècnica de Catalunya, 2011-06)
    Master thesis (pre-Bologna period)
    Open Access
  • Hidrofugació de l'acabat del cuir 

    Bartrolí Solé, Judit (Universitat Politècnica de Catalunya, 2001-09)
    Master thesis (pre-Bologna period)
    Open Access
    La importància dels cuirs hidrofugats ha augmentat considerablement els darrers anys. Això es deu a l’auge d’alguns esports, com ara el golf, el muntanyisme i els esports d’aventura en general, que utilitzen calçat i ...
  • 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 ...
  • Inter-laboratory study on formaldehyde determination by HPLC 

    Marsal Monge, Agustín; Font Vallès, Joaquim; Viera, Susanna; Cuadros, Sara; Rius Carrasco, Antoni; Reyes Reyes, Maria; Verdú, Emilio; Jorba, Montse; Juárez, Miguel-Angel (2008)
    Article
    Restricted access - publisher's policy
    The colorimetric determination of formaldehyde in a water extract of a leather sample is a procedure that has been criticized because of possible interferences of other aldehydes and coloured substances that could interfere ...
  • Optimizing a Sustainable and Innovative Wet-White Process with Tara Tannins 

    Castell, Joan Carles; Fabregat, Cristina; Sorolla Casellas, Sílvia; Ollé Otero, Lluís; Bacardit Dalmases, Anna; Solano, D (2011-10-05)
    Article
    Restricted access - publisher's policy
    This study considers the fruit of the tara tree (Caesalpinia spinosa) as a sustainable source for tanning agents and proposes alternatives to the commercial mineral salts and vegetable extracts to comply with an increasing ...
  • 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 ...
  • Quality handbook for the production of chromium(VI)-free leather 

    Font Vallès, Joaquim; Rius Carrasco, Antoni; Marsal Monge, Agustín (Oficina de Publicaciones Oficiales de las Comunidades Europeas, 2005)
    Book
    Restricted access - publisher's policy
  • 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
  • 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 ...
  • 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. ...
  • Use of water-based carbonyl-functional polymers on a cross-linker-free highperformance leather finish 

    Ollé Otero, Lluís; Urteaga, Eva; Font Vallès, Joaquim; Labastida, Luis; Bacardit Dalmases, Anna (2011-02)
    Article
    Open Access
    The present paper aims to study a new high-performance coating formulation while avoiding the use of cross-linkers. By using acrylic polymers with carbonyl functional groups, the negative environmental effects of the ...
  • Use of water-based carbonyl-functional polymers on a cross-linker-free high performance leather finishing 

    Ollé Otero, Lluís; Urteaga, Eva; Font Vallès, Joaquim; Labastida, Luis; Bacardit Dalmases, Anna (2012-01-01)
    Article
    Open Access
    The present paper aims to study a new high-performance coating formulation while avoiding the use of cross-linkers. By using acrylic polymers with carbonyl functional groups, the negative environmental effects of the ...