WOOD 120 Lecture Notes - Lecture 19: Fluff Pulp, Paper Recycling, Bioenergy
24 Nov 2016
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Document Summary
40% from wood fibres: chemical, mechanical, recycled, mechanical, high yield, low quality, chemical. Low yield, high quality: water is now reusing. Production shifting to southern developing countries: modern pulp mill is producing pulp + bioenergy, globalization, china, brics are having increased demand. Reduced demand on graphic paper when internet comes: kraft, nbsk - canada produces about 75% na nbsk. 80% of canadian production is to us & chinese: demand is shrinking for traditional uses. Total canadian production decreased 21: dissolving pulp, commodity. Produce rayon for textile industry: competes with cotton & rayon, demands is growing. Fluff pulp: chemical pulp from long fibre softwood. Syp is ideal but bek enters into the competition: bek pulp, made from eucalyptus trees grown in plantations, used for printing and writing papers. Producing pulp has become one of most environmentally efficient global businesses: new opportunities for wood chips. Traditional use for communication is declining: newspaper, printing & writing papers.
