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Efficient use of fluorescent whitening agents
in the production of high white grades. 3.1.1 CASE 1 TINOPAL NP Slurry was introduced in this mill with IRGALITE pigments during year 2000. The fine paper machine of capacity of 20 t/h produces several white grades from a furnish containing spruce with various hardwood pulps and PCC. This machine used
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Is fungal treatment beneficial?
treatment is known to degrade wood extractives, it nevertheless does not reduce the toxicity of aspen pulping effluents, nor does it decrease the acetone extractives content of the CTMP. Michx.) is a hardwood that is now widely used for pulp production in North America. In kraft pulping
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The use of alkenyl succinic
. While softwood fines produced during pulping and bleaching affect sizing efficiency significantly more than hardwood fines, they also discovered that hardwood fines generated during refining would have a similar surface area to softwood fines and subsequently a similar effect on sizing performance
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New advances in microparticle retention
Hardwood, 10% CTMPFiller: 6-17%Headbox pH: 7.2 The third current application is the ongoing use of the MP 835 in a European mill producing coated free sheet grades. The former program was a two-part cationic starch - anionic silica microparticle program. Production was limited by drainage, formation
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Journal papers
. Introduction to control in the refining process November 2003 Eric C Xu. Some of the latest investigations in P-RC APMP pulping of hardwood. Part 1: LCR at secondary refining Eric C Xu. Some of the latest investigations in P-RC APMP pulping of hardwood. Part 2: Synergistic effects between P-RC APMP
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Cockling-Protecting PSA Release Liners from Heat and Humidity (.pdf)
papers and films. Bjork emphasizes that "the quality and composition of the paper itself is critical to. maintaining dimensional stability. You need to start with good-quality, uniform paper. material with an appropriate mixture of softwood and hardwood pulp. The better the. layflat, the more square
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Smart Computing Article - Step One
of room to work by creating a good work environment. Make sure the area is well- lit and provides plenty of room to spread out your materials, maneuver freely, and leaf through your users manual. If possible, try to avoid carpet; select an area with a tile, concrete, linoleum, or hardwood floor
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A robot in every house
some vibration problems. The motors get microstepped to compensate. They run 200 steps/rev with 64 steps/step, for a total of 12,800 steps/rev. The robot moves on hardwood floors, linoleum, tiles, and relatively smooth carpets. It can also scoot across small thresholds but not across thick carpets