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A roll of kraft paper. Kraft paper or kraft [1] is paper or paperboard (cardboard) produced from chemical pulp produced in the kraft process . Sack kraft paper (or just sack paper) is a porous kraft paper with high elasticity and high tear resistance, designed for packaging products with high demands for strength and durability.
Northern bleached softwood kraft. Northern bleached softwood kraft ( NBSK) is the paper industry's benchmark grade of pulp. Market NBSK is produced mainly in Canada and the Nordic countries. Some NBSK is also produced in north-western United States and in Russia. NBSK futures are traded on the Chicago Mercantile Exchange .
The kraft process involves treatment of wood chips with a hot mixture of water, sodium hydroxide (NaOH), and sodium sulfide (Na 2 S), known as white liquor, that breaks the bonds that link lignin, hemicellulose, and cellulose. The technology entails several steps, both mechanical and chemical. It is the dominant method for producing paper.
Paper mill. International Paper Company's Kraft pulp and paper mill in Georgetown, South Carolina. When built, this was the world's largest mill. Basement of paper mill in Sault Ste. Marie, Ontario. Pulp and paper manufacture involves a great deal of humidity, which presents a preventive maintenance and corrosion challenge.
Bleaching of wood pulp. Bleaching of wood pulp is the chemical processing of wood pulp to lighten its color and whiten the pulp. The primary product of wood pulp is paper, for which whiteness (similar to, but distinct from brightness) is an important characteristic. [1] These processes and chemistry are also applicable to the bleaching of non ...
Crofton Mill. / 48.8742; -123.6514. Crofton Mill is a pulp mill and paper mill located in the Vancouver Island town of Crofton, British Columbia. The mill has 3 paper machines (only 2 are operational) and 2 pulp machines, which produce 349,000 tonnes of newsprint and directory paper, and 355,000 tonnes of northern bleached softwood kraft .
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