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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.
The kraft process (also known as kraft pulping or sulfate process) is a process for conversion of wood into wood pulp, which consists of almost pure cellulose fibres, the main component of paper. 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 ...
The competing chemical pulping process, the sulfate, or kraft, process, was developed by Carl F. Dahl in 1879; the first kraft mill started, in Sweden, in 1890. [2] The invention of the recovery boiler , by G.H. Tomlinson in the early 1930s, [ 12 ] allowed kraft mills to recycle almost all of their pulping chemicals.
A roll of kraft paper. Kraft paper or kraft 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.
Rumford Mill is a pulp mill and paper mill located in the United States town of Rumford, Maine. The mill has two kraft pulp lines and three paper machines. The mill produces 460,000 tonnes of kraft pulp and 565,000 tonnes of paper annually. The mill has 621 employees as of 2016. [1]
The firm acquired the Roanoke Rapids kraft paper mill from International Paper in January 2007. In July 2008, it acquired the Charleston kraft paper mill from MeadWestvaco . On October 31, 2011, KapStone acquired U.S.Corrugated, Inc. [ 7 ] [ 8 ] [ 9 ] It was started in 2006 by Dennis Mehiel, and primarily produces corrugated industrial ...
Southern bleached softwood kraft (SBSK) is a wood pulp mainly produced in the southern USA. The main raw materials are slash pine , longleaf pine , shortleaf pine , loblolly pine and virginia pine .
A pulp mill in Rauma, Finland Woodchips for paper production. A pulp mill is a manufacturing facility that converts wood chips or other plant fiber sources into a thick fiber board which can be shipped to a paper mill for further processing.