Sökning: "malgrad"

Hittade 4 uppsatser innehållade ordet malgrad.

  1. 1. Effect of Refining on Softwood Pulp with Addition of Eucalyptus for Greaseproof Paper Production : Vacuum Dewatering in Laboratory Scale

    Master-uppsats, Karlstads universitet/Institutionen för ingenjörs- och kemivetenskaper (from 2013)

    Författare :Anton Nordling; [2023]
    Nyckelord :Refining; beating; eucalyptus; greaseproof paper; degree of refining; vacuum dewatering; formation; air permeance; Malning; Eukalyptus; fettresistent papper; malgrad; vakuumavvattning; formation; luftpermeans;

    Sammanfattning : We are provided countless products from the forest industry and has been through many years. Paper, paper board, packaging materials and furniture to mention a few. A special type of paper used in food packaging for example, is greaseproof paper. LÄS MER

  3. 2. Micromechanical Investigation of the Effect of Refining on the Mechanical Properties of the Middle Ply of a Paperboard.

    Magister-uppsats, KTH/Hållfasthetslära (Inst.)

    Författare :Sofia Sandin; [2014]
    Nyckelord :Keywords: Refining; fibrillation; fines; SEM; 3D fiber network model; FE simulations; Malning; fibrillering; fines; SEM; 3D fibernätverksmodell; FE simuleringar;

    Sammanfattning : Optimized fiber utilization is crucial to the process efficiency and profitability in paper and board making. The fibers can be developed in a refining process in order to reach a desired quality level. LÄS MER

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

    Uppsats för yrkesexamina på avancerad nivå, Karlstads universitet/Fakulteten för teknik- och naturvetenskap

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

    Sammanfattning : 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. LÄS MER

  5. 4. Evaluation of different models for flow through paper

    Master-uppsats, Fakulteten för teknik- och naturvetenskap

    Författare :Arif Hussain; [2011]
    Nyckelord :;

    Sammanfattning : For understanding the energy use during vacuum dewatering and through air drying process, air flow through highly complex structure of paper has been investigated. Experiments were performed for a wide range of pressure drops and basis weights. In addition the pulp samples are refined to three different beating degrees. LÄS MER