Now showing items 1-15 of 15

    • Advancements in sustainable natural dyes for textile applications: a review 

      Pizzicato, Barbara; Pacifico, Severina; Cayuela Marín, Diana; Mijas Vélez, Gabriela Dayana; Riba Moliner, Marta (Multidisciplinary Digital Publishing Institute (MDPI), 2023-08-08)
      Article
      Open Access
      The dyeing and finishing step represents a clear hotspot in the textile supply chain as the wet processing stages require significant amounts of water, energy, and chemicals. In order to tackle environmental issues, natural ...
    • Analysis of lignin content in alkaline treated hemp fibres: thermogravimetric studies and determination of kinetics of delignification 

      Mijas Vélez, Gabriela Dayana; Manich, Albert; Lis Arias, Manuel José; Riba, Marta; Algaba Joaquín, Inés María; Cayuela Marín, Diana (2021)
      Conference lecture
      Restricted access - publisher's policy
      The ease of cultivation, structure and properties of hemp (Cannabis sativa L.), provide it a great potential for industrial applications; nevertheless, the unfavourable high content of lignin complicates its processing, ...
    • Analysis of lignin content in alkaline treated hemp fibres: thermogravimetric studies and determination of kinetics of different decomposition steps 

      Mijas Vélez, Gabriela Dayana; Manich, Albert; Lis Arias, Manuel José; Riba Moliner, Marta; Algaba Joaquín, Inés María; Cayuela Marín, Diana (2021-09-02)
      Article
      Open Access
      Hemp (Cannabis sativa L.) is a plant of which, its ease of cultivation, structure and properties, provide it great potential for industrial applications; nevertheless, the unfavorable content of lignin complicates its ...
    • Dyeing of cellulosic fibres by dyes obtained from biosources 

      Josa Rosell, Mariona; Alvarez, Tania; Mijas Vélez, Gabriela Dayana; Cayuela Marín, Diana; Prieto Fuentes, María Remedios; Riba Moliner, Marta (International Federation of Associations of Textile Chemists and Colourists (IFATCC), 2021)
      Conference lecture
      Restricted access - publisher's policy
    • Hemp cottonization 

      Mijas Vélez, Gabriela Dayana; Rafael Graciano, Montserrat; Cano Casas, Francesc; Lis Arias, Manuel José; Riba Moliner, Marta; Cayuela Marín, Diana (International Federation of Associations of Textile Chemists and Colourists (IFATCC), 2021)
      Conference lecture
      Restricted access - publisher's policy
    • High performance textile filaments based in polyester- CaF2 and montanic acid with multifunctional alcohols composites 

      Mijas Vélez, Gabriela Dayana; Riba Moliner, Marta; Sanchez Loredo, Maria Guadalupe; Cayuela Marín, Diana (International Federation of Associations of Textile Chemists and Colourists (IFATCC), 2021)
      Conference lecture
      Restricted access - publisher's policy
    • Influence of alkaline delignification time on the moisture uptake behaviour of hemp 

      Manich Bou, Albert M.; Lis Arias, Manuel José; Perez Renetero, Sonia; Riba Moliner, Marta; Mijas Vélez, Gabriela Dayana; Martí Gelabert, Meritxell; Cayuela Marín, Diana (2021-09-20)
      Article
      Open Access
      The influence of the alkaline delignification of hemp on its moisture uptake has been studied under the project “Preparation and functionalization of hemp for textile substrates” focussed on the reduction of cotton imports ...
    • Influence of the time of alkaline delignification on moisture uptake behaviour of hemp 

      Manich, Albert; Perez Renetero, Sonia; Marti, Meritxell; Mijas Vélez, Gabriela Dayana; Lis Arias, Manuel José; Riba, Marta; Algaba Joaquín, Inés María; Cayuela Marín, Diana (2021)
      Conference report
      Restricted access - publisher's policy
      Raw hemp fibres are alkaline delignified at different times in order to evaluate the effect of time of delignification on moisture uptake behaviour of hemp. Lignin content of samples is measured. Samples of original and ...
    • Kinetics of alkaline delignification of hemp and determination of lignin content by thermogravimetry 

      Mijas Vélez, Gabriela Dayana; Lis Arias, Manuel José; Perez Renetero, Sonia; Riba Moliner, Marta; Martí, Meritxell; Cayuela Marín, Diana; Manich Bou, Albert M. (2022-04-28)
      Article
      Open Access
      Raw hemp (Cannabis sativa L.) was subjected to alkaline delignification with the application of NaOH ranging from [0.125M] to [1M] for times from 5 to 480¿min. Lignin contents of the original and delignified samples were ...
    • Obtaining of a PET-CaF2 hybrid multifilament: non-isothermal crystallization studies 

      Riba Moliner, Marta; Mijas Vélez, Gabriela Dayana; Sánchez-Loredo, María Guadalupe; Cayuela Marín, Diana (Elsevier, 2020-02)
      Article
      Open Access
      Poly(ethylene terephthalate) (PET) has been mixed with fluorite (CaF2) particles to obtain micro- and nanocomposites aiming to obtain a hybrid multifilament. In first term, the use of two montanic waxes and an amide wax ...
    • Obtaining of a PET/SiC hybrid multifilament: non-isothermal crystallization studies 

      Riba Moliner, Marta; Mijas Vélez, Gabriela Dayana; Roig Montoro, Davinia; Cayuela Marín, Diana (2020-11-04)
      Article
      Open Access
      Thermal processing properties are a key factor in the industrial processing industry. The obtaining of a PET-based hybrid composite multifilament with textile properties (yarns) is presented. The system is composed by ...
    • Optimización del proceso cotonización de cáñamo para sustratos textiles 

      Mijas Vélez, Gabriela Dayana; Rafael Graciano, Montserrat; Cano Casas, Francesc; Lis Arias, Manuel José; Manich Bou, Albert M.; Cayuela Marín, Diana (Asociación Española de Químicos y Coloristas Textiles, 2019-10-01)
      Article
      Open Access
      La sustitución del uso del algodón por el cáñamo conlleva un sinnúmero de ventajas medioambientales y económicas. Debido a su ubicuidad, su cultivo con reducidos requerimientos de pesticidas y agua y, a características ...
    • Study of dyeing process of hemp/cotton fabrics by using natural dyes obtained from rubia tinctorum L. and calendula officialis 

      Mijas Vélez, Gabriela Dayana; Josa, Mariona; Cayuela Marín, Diana; Riba Moliner, Marta (Multidisciplinary Digital Publishing Institute (MDPI), 2022-10-25)
      Article
      Open Access
      The objective of this work was to assess the possibility of dyeing a substrate composed of non-textile industrial hemp using natural dyes from common madder (Rubia Tinctorum L.) and calendula (Calendula Officialis) and ...
    • The effect of accelerated aging on the molecular weight and thermal and mechanical properties of polyester yarns containing ceramic particles 

      Mijas Vélez, Gabriela Dayana; Riba Moliner, Marta; Cayuela Marín, Diana (Multidisciplinary Digital Publishing Institute (MDPI), 2023-03-08)
      Article
      Open Access
      The accelerated aging of polyethylene terephthalate (PET) multifilament yarns containing nano or microparticles of titanium dioxide (TiO2), silicon carbide (SiC), or fluorite (CaF2) at a maximum percentage of 2% has been ...
    • The influence of Titanium Dioxide (TiO2) particle size and crystalline form on the microstructure and UV protection factor of polyester substrates 

      Cot Valle, Maria; Mijas Vélez, Gabriela Dayana; Prieto, Remedios; Riba Moliner, Marta; Cayuela Marín, Diana (Multidisciplinary Digital Publishing Institute (MDPI), 2024-02-08)
      Article
      Open Access
      The inclusion of particles in a polymeric substrate to achieve certain properties is a well-known practice. In the case of textile substrates, this practice may deeply affect the structure of the produced yarns, as even a ...