Selaus avainsanan mukaan kokoelmassa "paperboard"Väitöskirjat

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    • Leak-proof Heat Sealing of Press-Formed Paperboard Trays 

      Leminen, Ville
      Acta Universitatis Lappeenrantaensis (Lappeenranta University of Technology, 27.05.2016)
      Three-dimensional (3D) forming of paperboard and heat sealing of lidding films to trays manufactured by the press forming process are investigated in this thesis. The aim of the work was to investigate and recognize the ...

    • Press forming of paperboard – advancement of converting tools and process control 

      Tanninen, Panu
      Acta Universitatis Lappeenrantaensis (Lappeenranta University of Technology, 14.12.2015)
      Press forming is nowadays one of the most common industrial methods in use for producing deeper trays from paperboard. Demands for material properties like recyclability and sustainability have increased also in the ...

    • Thermoforming of fibre-based materials : an investigation into material characteristics and process variables 

      Afshariantorghabeh, Sanaz
      Acta Universitatis Lappeenrantaensis : 1162 (Lappeenranta-Lahti University of Technology LUT, 01.11.2024)
      Thermoforming, a method widely used in plastic manufacturing owing to its efficiency and low heat requirements, holds untapped potential for the production of fibre-based products. However, the natural porosity of pure ...