Essays about: "tear index"

Found 4 essays containing the words tear index.

  1. 1. Non-wood fibers for strength enhancement of paper : Mixing softwood pulp with abaca, sisal and banana fibers

    University essay from Karlstads universitet/Institutionen för ingenjörs- och kemivetenskaper (from 2013)

    Author : Emilia Rinaldo; [2020]
    Keywords : non-wood fibers; abaca; sisal; banana fibers; paper strength;

    Abstract : The aim with this master thesis was to investigate the potential of using non-wood fibers to enhance the paper strength. Abaca, sisal and banana fibers were added to conventional bleached chemical softwood pulp. The effect of refining was investigated, both as co-refining and as separate refining. READ MORE

  3. 2. Växtmaterial för klättrande barn

    University essay from SLU/Dept. of Landscape Architecture, Planning and Management (from 130101)

    Author : Pernilla Andersson; [2013]
    Keywords : barn; utemiljö; förskola; träd; buskar; klättra; lek; planera; klättring; slitage;

    Abstract : Barns fysiska uppväxtmiljö har genom förskolan homogeniserats. Nästan 90% av alla 1-5åringar vistas i förskola merparten av sin vakna tid. Därför är det angeläget att kritiskt granska vad denna miljö erbjuder barn. Uppsatsen fokuserar på växtmaterialet barn klättrar i på förskolor. READ MORE

  4. 3. The Effect of Different Xylan Contents on the Strength Properties of Softwood Kraft pulp

    University essay from Karlstads universitet/Fakulteten för teknik- och naturvetenskap

    Author : Maria Svedinger Andersson; [2013]
    Keywords : Xylan; Glucomannan; strength; pulp; cooking; xylan content; hemucellulose; mild cook;

    Abstract : The aim of this Master thesis was to investigate if the xylan content had any influence on the physical properties of softwood kraft pulps. To achieve pulps with different xylan content different kraft cooking conditions were used; two different temperatures and two different effective alkali levels. READ MORE

  5. 4. High consistency refining of mechanical pulps during varying refining conditions : High consistency refiner conditions effect on pulp quality

    University essay from Institutionen för fysik, kemi och biologi; Institutionen för fysik, kemi och biologi

    Author : Dino Muhic; [2008]
    Keywords : Thermomechanical pulping; high consistency refining; segment wear; housing pressure; feed pressure; mechanical pulping;

    Abstract :   The correlation between pulp properties and operating conditions in high consistency (HC) refiners at Holmen Paper AB were studied. Two types of HC refiners were investigated: the Andritz RTS refiner at the Hallstavik Mill and the Sprout-Bauer Twin 60 refiner at the Braviken Mill. READ MORE