Borràs Riba, Eulàlia
Total activity: 6
School
Escola d'Enginyeria d'Igualada
E-mail
eulalia.borraseei.upc.edu
Contact details
UPC directory Open in new window

Graphic summary
  • Show / hide key
  • Information


Scientific and technological production
  •  

1 to 6 of 6 results
  • Interactions cosmpolites. L'organisation de la participation plurilingue

     Borràs Riba, Eulàlia
    Date of publication: 2012-06-21
    Book chapter

    View View Open in new window  Share Reference managers Reference managers Open in new window

  • 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, Sílvia
    Journal of the American Leather Chemists Association
    Date of publication: 2010
    Journal article

    Read the abstract Read the abstract View View Open in new window  Share Reference managers Reference managers Open in new window

    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 tanneries. In particular, the study investigated grain fineness and fixation of tannins in relation to several mechanical approaches, which included: no mechanical effect (pits), drum, ultrasound, and ultrasound plus drum. A comparative study of energy expenses on the basis of the mechanical effect being used was also carried out.

  • Effect of ultrasound on several chromium tanning parameters

     Morera Prat, Josep Maria; Bartolí Soler, Esther; Serrano Montes, Mónica; Combalia Cendra, Felip; Borràs Riba, Eulàlia; Olle Otero, Luis; Bacardit Dalmases, Anna
    Journal of the American Leather Chemists Association
    Date of publication: 2010-05
    Journal article

    Read the abstract Read the abstract View View Open in new window  Share Reference managers Reference managers Open in new window

    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 studied (at two levels by means of a 23 factorial design) are tanning temperature, condition of chrome offered (solid or dissolved) and salt basicity. Our studies indicate that the results obtained measuring parameters such as struck-through time of tanning agent, chromium uptake and its distribution, shrinkage temperature, tensile strength, tear load, grain distension and leather burst distention significantly depend on the previously selected level of one or more of the variables being studied. The study of the evolution of the concentration and basicity of the chromium salts has led us to conclude that reutilization is possible. Results show that ultrasound use in chrome tanning is a possibility to consider in the case of leather goods in which the use of drum may not be advisable.

  • Epoxy resin Cross-linked binders in aqueous finishing

     Bacardit Dalmases, Anna; Cobos, Mireia; Borràs Riba, Eulàlia; Olle Otero, Luis
    Journal of the Society of Leather Technologists and Chemists
    Date of publication: 2010-02-22
    Journal article

    View View Open in new window  Share Reference managers Reference managers Open in new window

  • 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, Sílvia
    Annual Meeting of the American Leather Chemists Association
    Presentation's date: 2010-06-12
    Presentation of work at congresses

     Share Reference managers Reference managers Open in new window