What is Bctmp used for?
Softwood BCTMP is used for manufacturing products such as coated board grades, printing and writing paper and paper towel/napkin grades. Hardwood BCTMP is produced at our Slave Lake mill. It’s recognized for quality levels suitable for the production of coated board grades, printing and writing papers.
What does Bctmp stand for?
Bleached Chemi-ThermoMechanical Pulp (BCTMP) is a pulp product used by the paper industry as a less-expensive alternative for Northern Bleached Softwood Kraft (NBSK). In addition, BCTMP provides higher bulk, opacity, and stiffness in the final product, and the process is more environmentally friendly.
What is chemi mechanical pulping?
Chemi-mechanical pulp is a pulping process that separates fibrous materials by combining three ways like chemical, heat and mechanical. Pulp yield of chemi-mechanical pulp is about 80~90%. APMP is short for alkaline peroxide mechanical pulp, which is a kind of new technology for high yield of paper pulp.
How do pulp mills work?
Gravity and suction is used in fourdriner to reduce the water content to nearly 70%. Hot press rolls squeeze out the water, and then the sheet travels though a large industrial dryer that finally reduces the water content close to 10%. Once out of the dryer, the pulp is cut, pressed, and packaged.
What is BHKP pulp?
BHKP – Bleached hardwood kraft pulp. BKP – Bleached kraft pulp (includes all softwood and hardwood kraft pulp). Kraft paper – Paper made from kraft pulp—bleached or unbleached. It is a strong paper used principally for wrapping or packaging.
How is mechanical pulp made?
Mechanical pulping produces pulp through the use of mechanical energy instead of chemicals. Mechanical pulps can be produced by grinding logs or refining chips. Mechanical pulping processes use water for screening, cleaning, and showers on thickeners and grinding stones.
What is the difference between mechanical and chemical pulp?
Mechanical pulping uses mostly mechanical energy to separate fibers and develop pulp properties. Chemical pulping uses mostly chemical energy, (from chemical reactions), to separate the fibers and to develop basic pulp properties.
What is pulp mill effluent?
Effluents from mills using bleaching are wastewater discharges from Canadian pulp and paper mills that are generated in different mill processes such as cooling, pulping, papermaking, chemical recovery, and power generation that also involve chlorine or chlorine dioxide pulp bleaching.
Where is pulp made?
What is Pulp? Pulp is made from breaking down the fibrous part of plants, primarily trees or recycled paper, and refers to the main ingredient in the papermaking process. Pulp made from trees (wood fiber) is the most common source of fiber for papermaking and the base for many paper and wood products.
What is UWF paper?
Woodfree uncoated paper (WFU), uncoated woodfree paper (UWF) or uncoated fine papers are manufactured using wood that has been processed into a chemical pulp that removes the lignin from the wood fibers and may also contain 5–25% fillers. These paper grades are calendered.
How is fluff pulp made?
Fluff pulps are used as raw material in the absorbent core of personal care products such as diapers, feminine hygiene products, air-laid absorbent towelling as such or in conjunction with super-absorbents or synthetic fibres. Fluff pulp is normally made of softwood pulp obtained by sulphate or sulphite pulping.
How is pulp made?
Pulp is made from breaking down the fibrous part of plants, primarily trees or recycled paper, and refers to the main ingredient in the papermaking process. Pulp made from trees (wood fiber) is the most common source of fiber for papermaking and the base for many paper and wood products.
Where is the BCTMP pulp mill in Russia?
Estonian Pulp (a Norwegian/Estonian joint venture) and the regional government have plans to build a greenfield BCTMP in Northwestern Russia. Elsewhere, the group also made headlines recently with an announcement that it was pulling out of a proposed BCTMP pulp mill project in South Africa.
Is the BCTMP mill in Lielahti shut down?
Main focus was on the staining reaction and finding the best methods for the identification of lignin in aspen BCTMP samples. The company said that it has been decided that both the BCTMP mill in Lielahti and PM2 at the Kangas mill, producing magazine paper, will be shut down.
What kind of wood is Aspen BCTMP made of?
It is made of a blend of two kinds of wood pulps–a combination of oxygen cleansed and chlorine dioxide processed and BCTMP whitened with hydrogen peroxide. Aspen BCTMP composites were prepared with 80% polymer and 20% wood flour.