Now showing items 1-12 of 12

  • Aplicació industrial dels ultrasons en sistemes d'adobament vegetal 

    Combalia Cendra, Felip (Universitat Politècnica de Catalunya, 2013-03-01)
    Doctoral thesis
  • Aplicación de ultrasonidos en la curtición vegetal 

    Morera Prat, Josep Maria; Combalia Cendra, Felip; Bartolí Soler, Esther; Santiago, Matilde; Sorolla Casellas, Sílvia (2010-05-07)
    Conference report
    Open Access
    Se estudia y pone a punto un sistema externo de aplicación de los ultrasonidos en los baños de curtición vegetal. Este sistema es muy versátil y su uso no requiere realizar modificaciones en la tenería ni supone grandes ...
  • Application of infrared spectroscopy (FTIR and NIR) in vegetable tanning process control 

    Canals Parelló, Trini; Morera Prat, Josep Maria; Combalia Cendra, Felip; Bartolí Soler, Esther (2013-05)
    Article
    Restricted access - publisher's policy
    The tanning industry is currently influenced by the globalization of international markets. Competitiveness among industries has increased substantially. This therefore results in the need to further control the tanning ...
  • Comparación de cuatro sistemas de precurtición wet-white 

    Bacardit Dalmases, Anna; Combalia Cendra, Felip; Ollé Otero, Lluís; Makárova, Anna (2006-04)
    Article
    Open Access
    La curtición al cromo es un proceso con un fuerte impacto ambiental, por una parte debido a que contamina de forma importante las aguas residuales y por otra a la dificultad de eliminar los residuos sólidos que contienen ...
  • Detección del índice de curtición de pieles curtidas al vegetal mediante la espectroscopía infrarroja (FTIR) 

    Canals Parelló, Trini; Morera Prat, Josep Maria; Combalia Cendra, Felip; Bartolí Soler, Esther (2010)
    Article
    Restricted access - publisher's policy
    Se ha desarrollado un método analítico para determinar el índice de curtición (IC), así como de los parámetros asociados a su cálculo, mediante la técnica instrumental de la espectroscopía de infrarrojo medio con Transformada ...
  • Determinación del índice de curtición de pieles curtidas al vegetal mediante la espectroscopía infrarroja (FTIR) 

    Canals Parelló, Trini; Morera Prat, Josep Maria; Combalia Cendra, Felip; Bartolí Soler, Esther (2010-05-07)
    Conference report
    Open Access
    Se ha desarrollado un método analítico para determinar el índice de curtición (IC), así como de los parámetros asociados a su cálculo, mediante la técnica instrumental de la espectroscopía de infrrojo medio con Transformada ...
  • Determination of hexavalent chromium in leather by ion-exchange chromatography 

    Font Vallès, Joaquim; Perez Quiñones, Carmen; Reyes Farrera, María R.; Cobos, Mireia; Combalia Cendra, Felip; Marsal Monge, Agustí (2014-09-01)
    Article
    Restricted access - publisher's policy
    The determination of traces of hexavalent chromium in leather and in leather consumer goods is carried out by ion-exchange chromatography. Samples are extracted at pH7.5-8 with a phosphate buffer, according to the method ...
  • Effect of ultrasound on several chromium tanning parameters 

    Morera Prat, Josep Maria; Bartolí Soler, Esther; Serrano Montes, Mónica; Combalia Cendra, Felip; Borràs Riba, Eulàlia; Ollé Otero, Lluís; Bacardit Dalmases, Anna (2010-05)
    Article
    Restricted access - publisher's policy
    This work studies the effect of several variables on a series of properties of the final leather obtained from chrome tanning, using ultrasounds as the sole mechanical effect during the tanning operation. The variables ...
  • Polysilane cross-linked binders for aqueous finishing 

    Ollé Otero, Lluís; Shendryck, Alexander; Combalia Cendra, Felip; Jorge Sánchez, Juan; Bacardit Dalmases, Anna (2010-06-17)
    Article
    Restricted access - publisher's policy
    This study explores the cross-linking reaction between an epoxy functional alkoxysilane and both the leather industry, it can be used in finishing processes. A comparison of results indicates that such cross-linker presents ...
  • 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 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, ...
  • Study of the application of ultrasound in a vegetable tannage 

    Morera Prat, Josep Maria; Bartolí Soler, Esther; Combalia Cendra, Felip; Borràs Riba, Eulàlia; Castell, Joan Carles; Sorolla Casellas, Sílvia (2010)
    Article
    Restricted access - publisher's policy
    This study concerns the implementation and improvement of a system that applies ultrasound technology to vegetable tanning floats. The system is versatile and requires no major modifications or investment expense for ...