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This pulp grade is very diverse. All NBSK pulps have long fibers and is often used as reinforcement pulp. [1] NBSK from British Columbia is mainly from Lodgepole Pine, with a significant amount of White Spruce. Redcedar, douglas fir, hemlock, and larch make up a smaller portion of the chip furnish. NBSK is known for having longer fiber lengths ...
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 ...
In 1911, Consolidated took over the nearby Biron mill from the Grand Rapids Pulp and Paper Co., which became the Biron Division. [4] [5] In 1916, it absorbed the Interlake Pulp & Paper Company of Appleton, which became the Interlake Division. [5] In 1918, the company built a hydroelectric dam at Stevens Point, adding paper machines in 1919. [5]
Absorbent kraft paper is made with controlled absorbency (i.e. a high degree of porosity). It is made of clean low kappa hardwood kraft and has to have a good uniformity and formation. Spinning kraft paper is an especially strong type of kraft paper with relatively low grammage (40 g/m 2). This paper requires the best possible machine direction ...
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. This, along with the ability of the kraft process to accept a wider variety of types of wood and to produce stronger fibres, [13] made the kraft process the dominant pulping process, starting in ...
This, along with the ability of the kraft process to accept a wider variety of types of wood and produce stronger fibers [4] made the kraft process the dominant pulping process starting in the 1940s. [3] Sulfite pulps now account for less than 10% of the total chemical pulp production [3] and the number of sulfite mills continues to decrease ...
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 .
[3] [4] It was also used to track linerboard prices as an economic indicator. [5] The magazine was part of Magazines for Industry Inc. [6] [7] In 2009 Mark Arzoumanian was the editor-in-chief of the magazine. [8] The headquarters was in Chicago. [7] [8] The magazine was acquired by RISI in May 2012.