Browsing by Author "Font Vallès, Joaquim"Més informació

Now showing items 1-20 of 41

    • A Simple Test to Determine the Propensity of a Sample of Leather to the Formation of Chromium(VI) 

      Cuadros Domènech, Rosa Maria; Font Vallès, Joaquim (2018-02-01)
      Article
      Restricted access - publisher's policy

    • 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 ...

    • 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
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      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 ...

    • 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 ...

    • Characterization of the volatile organic compounds by hs-spme-cg-ms in the leather sector 

      Cuadros Domènech, Rosa Maria; Ollé Otero, Lluís; Bacardit Dalmases, Anna; Font Vallès, Joaquim (2013-11)
      Article
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      Current European legislation demands a reduction in the amount of voltaile organic compounds (VOCs) used in industrial processes. The presence of these compounds in the leather industry arises from the chemicals used in ...

    • Comparación del envejecimiento debido a la exposición a un ambiente tropical artificial y exposición directa a la intemperie 

      Ollé Otero, Lluís; Cobos, Mireia; Font Vallès, Joaquim; Bacardit Dalmases, Anna (2010-05-07)
      Conference report
      Open Access
      El cuero para tapicería de automóvil puede ser sometido a condiciones ambientales extremas produciendo su envejecimiento prematuro. Los factores más importantes en la degradación del cuero durante su exposición ambiental ...

    • Comparison of IUP 16 and Microscopic Hot Table Methods for Shrinkage Temperature Determination 

      Font Vallès, Joaquim; Espejo, Jenifer; Cuadros, Sara; Reyes, Maria Reyes; Bacardit Dalmases, Anna; Buti Papiol, Salvador (2010-04-15)
      Article
      Restricted access - publisher's policy
      In the leather industry, shrinkage temperature (Ts) is determined by the IUP 16 method. However, only microanalytical techniques like the Microscopic Hot Table (MHT) method are appropriate for the Ts of leather objects of ...

    • 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 ...

    • Comparison of weathering variables on chrome-tanned and wet-white leather ageing 

      Ollé Otero, Lluís; Jorba, Montse; Castell, Joan Carles; Font Vallès, Joaquim; Bacardit Dalmases, Anna (2012-02-08)
      Article
      Restricted access - publisher's policy
      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 ...

    • 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
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      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. ...

    • Curtición vegetal con extracto de semilla de uva 

      Ramon Arcal, Salvador; Bacardit Dalmases, Anna; Font Vallès, Joaquim; Ollé Otero, Lluís (Publicació Electrònica en CD-ROM, 2012)
      Conference report
      Open Access
      El objetivo de este trabajo es estudiar la viabilidad de usar el extracto de semilla de uva procedente de subproductos de la industria vinícola, como fuente sostenible y renovable de taninos para curtir pieles vacunas ...

    • Determinación de fungicidas en piel y en baños de tenería 

      Reyes, Maria Reyes; Font Vallès, Joaquim; Bacardit Dalmases, Anna; Cuadros, Sara; Marsal, Agustí (2016-04-04)
      Article
      Open Access
      En este artículo se presentan dos métodos de análisis para determinar fungicidas utilizados en la industria del cuero. Un método determina fungicidas en piel y el otro en baños de proceso de tenería. Las moléculas ...

    • Determinación de TCMTB y otros fungicidas en piel 

      Reyes Farrera, María R.; Font Vallès, Joaquim; Bacardit Dalmases, Anna; Marsal Monge, Agustín (Publicació Electrònica en CD-ROM, 2012)
      Conference report
      Open Access
      La norma ISO 13365:2011 desarrolla un método analítico para la determinación del contenido de los agentes conservantes 2-(tiocianometiltio)-benzotiazol (TCMTB), 4-cloro-3-metilfenol (PCMC), 2-fenilfenol (OPP) y ...

    • Determination of Dimethylfumarate in Leather and Footwear by Solid-Phase micro Extraction and Gas Chromatography-Mass Spectrometry 

      Cuadros Domènech, Rosa Maria; Font Vallès, Joaquim; Reyes Reyes, Maria; Ollé Otero, Lluís; Marsal Monge, Agustín (2010-12-01)
      Article
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      In the last two years, Europe has experienced a rise in skin allery and dermatitis due to goods and Asian provenance that have been treacted with dimethylfumarate (DMFU). Accordingly,laboratories in the leather and foodwear ...

    • Determination of Formaldehyde Content in Leather: EN ISO 17266 Standard. Influence of the Agitation Method Used in the Initial Phase of Formaldehyde Extraction 

      Manich Bou, Albert M.; Cuadros Domènech, Sara; Font Vallès, Joaquim; Bacardit Dalmases, Anna; Combalia Cendra, Felip; Marsal Monge, Agustín (2017-05-08)
      Article
      Restricted access - publisher's policy
      Given the carcinogenic character of formaldehyde, it should be reliably determined in any substrate . The EN ISO 17226 Standard is the Official Method to quantify formaldehyde in leather. However, sorne misunderstandings ...

    • Determination of formaldehyde content in leather: Standard EN ISO 17226, revision and possible improvements 

      Cuadros Domènech, Sara; Font Vallès, Joaquim; Cuadros Domènech, Rosa Maria; Izquierdo, Francina; Ollé Otero, Lluís; Marsal Monge, Agustín (2016-07)
      Article
      Restricted access - publisher's policy
      The retanning process is the main application of formaldehyde in the tanning industry since formaldehyde participates in two groups of synthetic organic tanning agents: syntans and resins. Resins can be hydrolysed with the ...

    • Determination of fungicides in residual tanning floats using solid phase micro extraction 

      Font Vallès, Joaquim; Reyes Reyes, Maria; Cuadros, Sara; Bacardit Dalmases, Anna; Ollé Otero, Lluís; Marsal Monge, Agustín (2013-02-04)
      Article
      Open Access
      Solid-phase microextraction (SPME) was optimized for extraction of the leather preservative agents 2-(thiocyanomethylthio)-benzothiazole (TCMTB), 4-chloro-3-methylphenol (PCMC), 2-phenylphenol (OPP), 2-Octyl-3(2H)-isothiazolone ...

    • 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 ...

    • Dyestuffs and formaldehyde content in split leather treated with formaldehyde resins 

      Marsal Monge, Agustín; Cuadros Domènech, Rosa Maria; Cuadros Domènech, Sara; Font Vallès, Joaquim; Manich, Albert (2018-05-15)
      Article
      Open Access
      Formaldehyde resins are present in textile, leather and wood industries. Due to the harmful character of formaldehyde, different alternatives have been found to exclude or reduce its content on processed goods. However, ...