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Topic: Wood pulp


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In the News (Tue 10 Nov 09)

  
  Etherington & Roberts. Dictionary--mechanical wood pulp   (Site not responding. Last check: 2007-10-21)
Paper made from 100 mechanical wood pulp has relatively low strength, discolors fairly rapidly upon exposure to air and light (possibly because no lignin is removed from the fibers), and has very little permanence.
The most important physical properties of mechanical wood pulp are freeness, relative length of fiber, uniformity of fiber length, strength, color, and cleanliness.
This type of pulp is generally used with a proportion of chemical wood pulp, the percentage ranging from about 15 to 50.
sul-server-2.stanford.edu /don/dt/dt2209.html   (193 words)

  
  Wood pulp - Wikipedia, the free encyclopedia
Wood pulp is the most common material used to make paper.
Wood pulp generally comes from softwood trees such as spruce, pine, fir, larch and hemlock, but also some hardwoods such as eucalyptus and birch.
The use of wood pulp (and the introduction of steam power to the printing and paper making processes) led to cheaper paper and to the arrival of a new literary genre which we would later coin pulp fiction but were known to their contemporaries as dime novels or penny dreadfuls.
en.wikipedia.org /wiki/Wood_pulp   (1133 words)

  
 Pulp magazine - Wikipedia, the free encyclopedia
Pulp magazines (or pulp fiction; often referred to as "the pulps") were inexpensive fiction magazines.
Pulps were the successor to the "penny dreadfuls", "dime novels", and short fiction magazines of the nineteenth century.
Pulp covers were famous for their half-dressed damsels in distress, usually awaiting a rescuing hero.
en.wikipedia.org /wiki/Pulp_magazines   (792 words)

  
 Wood pulp processing apparatus and method - Patent 5785810
Pulp from a digester is directed into a dewatering/washing apparatus which comprises a high pressure vessel in which there is a table assembly having a perforate support surface for receiving the pulp thereon.
Thus, as the liquid level of the pulp slurry in the headbox 20 changes, gas is permitted to flow between the headbox 20 and the interior of the main pressure vessel 12 to equalize the pressure in the headbox 20 and the interior of the vessel 12.
The flow of the pulp through the venturi 550 causes the pulp to be shredded into smaller particles to facilitate the mixture of the oxygen with the pulp particles, and also to facilitate the movement of the pulp into and at the next bleaching station.
www.freepatentsonline.com /5785810.html   (19829 words)

  
 Maine Pulp & Paper: A Brief History of Papermaking
Wood was as yet unimportant to papermaking, which still used rags as its raw material.
The first wood pulp in Maine was produced in the basement of a Topsham sawmill in 1868, marking the beginning of the paper industry's rapid growth in Maine.
The Kraft process had several distinct advantages: it produced a high-strength pulp, the chemicals used to dissolve the lignin were recoverable and tremendous amounts of energy were produced during the recovery process, and the process could pulp softwood trees, which predominate in the northeastern United States.
www.pulpandpaper.org /html/history_of_papermaking.html   (1933 words)

  
 Wood pulp fiber process and resultant products - Patent 4412888
The process of claim 1 wherein the wood pulp fiber is originally slush or dry pulp fiber selected from hardwood, softwood or combinations thereof, which fiber is prepared by Kraft processing or sulfite processing and may be bleached or unbleached.
The instant process is applicable to treatment of wood pulp fibers obtained from soft woods or hard woods, slush and dried pulp, bleached and unbleached Kraft pulp, bleached and unbleached sulfite pulp, and mixtures thereof.
The initial processing applied to the wood pulp in order to obtain the fibers is that conventionally carried out in the treatment of wood pulp, namely, the wood pulp is digested, passed through a pulp chest, washed, bleached, and passed through a bleached pulp chest.
www.freepatentsonline.com /4412888.html   (3871 words)

  
 Etherington & Roberts. Dictionary--mechanical wood pulp   (Site not responding. Last check: 2007-10-21)
Paper made from 100 mechanical wood pulp has relatively low strength, discolors fairly rapidly upon exposure to air and light (possibly because no lignin is removed from the fibers), and has very little permanence.
The most important physical properties of mechanical wood pulp are freeness, relative length of fiber, uniformity of fiber length, strength, color, and cleanliness.
This type of pulp is generally used with a proportion of chemical wood pulp, the percentage ranging from about 15 to 50.
palimpsest.stanford.edu /don/dt/dt2209.html   (193 words)

  
 ArtLex on Wood
The innermost wood in a tree's trunk is called the heartwood, while the outermost is the functional sapwood.
Wood that is broken down into fibers is called wood pulp, which can then be made into paper.
Paintings in Europe during the Middle Ages were most often painted on wood panels or in stucco, and although Leonardo in reknowned as a great innovator, he was faithful to the wood panel tradition with few exceptions.
www.artlex.com /ArtLex/wxyz/wood.html   (1592 words)

  
 Agricultural Residues | Wood Consumption
Processes for pulping agricultural residues require minimal chemical inputs, do not form persistent toxic compounds, and produce compounds that can be recycled at the end of the process into useful farm additions.
Although agricultural residues are likely substitutes for the use of wood pulps for the manufacture of paper and other materials, there are still obstacles to their use.
Experts predict that straw pulp will always have to be supplemented by longer fibers, but mills can use up to 30 percent straw pulp in a wood fiber mix without seeing significant differences in paper properties.
www.woodconsumption.org /alts/meghanhayes.html   (7242 words)

  
 [No title]   (Site not responding. Last check: 2007-10-21)
Wood pulp generally comes from softwood trees such as spruce, pine, fir, larch and cedar.
The pulp produced up to this point in the process needs to be bleached to produce a white paper product.
The chemicals used to bleach pulp have been a source of environmental concern, and recently the pulp industry has been using alternatives to chlorine.
wikiwhat.com /encyclopedia/w/wo/wood_pulp.html   (365 words)

  
 Fibre Products   (Site not responding. Last check: 2007-10-21)
All-Wood Fibre believes that using portable equipment is important by being able to respond to changing supplies of log fibre, customer locations and to reduce hauling costs.
All-Wood Fibre has been able to secure significant contracts with a variety of clients such as Canfor who we contracted with in 1994 to provide portable chipping and screening services in their many mill sites.
When customers need quality wood chips in larger volumes, then there is no better way than with our portable chippers that can work on whole logs in the bush or in the log yard.
all-woodfibre.com /fibre_products.html   (1340 words)

  
 net-zones.com: Timber decking and Wood pulp
Wood or timber "decking" can be used in a number of ways - as part of garden landscaping, to extend living areas of houses, and as an alternative to stone based features such as patios.
Wood pulp generally comes from softwood trees such as spruce, pine, fir, larch and hemlock, but also some hardwoods such as eucalyptus and birch.
The use of wood pulp (and the introduction of steam power to the printing and paper making processes) led to cheaper paper and to the arrival of a new literary genre which we would later coin pulp fiction but were known to their contemporaries as dime novels or penny dreadful.
www.net-zones.com /timber-decking-and-wood-pulp.htm   (1538 words)

  
 Paper & Wood Pulp in Portugal - British-Portuguese Chamber of Commerce
Exports of wood pulp and paper total over €1.4 billion, nearly 5% of all Portuguese exports.
Portucel is one of the world’s biggest producers of bleached eucalyptus Kraft pulp for the packaging industry and one of Europe’s top five producers of uncoated wood-free paper.
Pulp production is growing even faster than paper as demand in the local market also expands.
www.bpcc.pt /paperWoodPulp.asp   (693 words)

  
 Unasylva - Vol. 3, No. 5 - Wood pulp
The simple fact about wood pulp is that it is not only an important industrial commodity; it is a vital raw material on which men and women throughout the world are becoming increasingly dependent.
It was not the purpose of the Montreal Conference to prepare a commodity agreement on pulp.
Wood pulp, as a primary forest product, is assigned to FAO under its charter, and FAO cannot ignore the world's needs for the products made from wood pulp.
www.fao.org /docrep/x5352e/x5352e02.htm   (308 words)

  
 pulp and paper   (Site not responding. Last check: 2007-10-21)
All modern pulp mills include a chemical recovery process which treats the fl liquor to recover the pulping chemicals, to use organic non-cellulose material (up to 50% of the original material before cooking) to generate energy for the pulp mill and to recycle process water.
Variation: contrary to wood fiber, straw fiber is characterized by variations in plant size and composition due to variations in cultivation conditions, climate, soil, etc., variations in storage time (from a few days old to a few years old at the pulp mill), and variations in the rate of deterioration during storage.
A pulp and paper manufacturing group called ABC pulp and paper in India claims two patents and a pilot process proof of treating silica rich fl liquor effluent from a straw pulping process.
www.fiberfutures.org /straw/main_pages/07_markets/2_pulp_paper.html   (2678 words)

  
 Port Angeles Wood Waste Study, Port Angeles, Washington
Five types of wood waste were identified on the bottom of Port Angeles Harbor: Logs or large wood pieces, small wood and/or bark chips (wood chips), very fine wood particles and/or fibers (wood pulp), trace to sparse wood pulp/chips mixed within the sediment column, and sparse, scattered wood pieces on top of the sediment surface
A layer of wood pulp covering approximately 35 acres is buried under 6 to 8 cm of ambient silt in the western central harbor.
The presence of sparse, scattered wood debris on the sediment surface (offshore of the log booming areas) appears to have minimal impact on the health of the benthic community and provides habitat for epibenthic organisms (e.g., shrimp, crabs, fish).
www.ecy.wa.gov /biblio/99326.html   (704 words)

  
 US WOOD TED Case; Pulp Processing, Pollution and Trade
Since mechanical pulping is much more efficient (90% percent as compared to around percent), there would be an additional amount a deforestation involved with the chemical process.
Emissions from the pulping process are in the form of sulphides, with the chemical process producing a wide variety of sulfur by-products.
Pulp producers outside of the US and Canada consist of only 30 percent of the world market.
www.american.edu /TED/pulp.htm   (1290 words)

  
 Forestry; wood; pulp and paper: Background - Sectoral Activities
While the formal wood industry sector in many developing countries may be small, wood processing is one of the largest segments of the informal sector in most countries.
Informal wood industries are often intimately linked to agriculture, both in terms of the workforce and of investment.
Pulp and paper industries involve the conversion of fibre, usually from wood but also from other plants, into pulp and further into a wide range of products like paper, packaging material, etc. In a growing number of countries, the pulp and paper industry is among the largest manufacturing industries and exporters.
www.ilo.org /public/english/dialogue/sector/sectors/forest.htm   (509 words)

  
 Paper Board, Stationary & Books, Kraft Paper, Wood Pulp, Paper, Other Products
We are a sterling manufacturer and exporter of an exclusive range of quality Paper Boards, Stationary, Books, Kraft Paper, Wood Pulp, Paper and other products.
With integrity and dedication, Dhanalaxmi Roto Spinners Ltd., an India-based organization is marching ahead as a renowned manufacturer and exporter of basket of products such as Paper Board, Kraft Paper, Wood Pulp, etc. All our products are available in various colors, styles and are 100% Eco-friendly and natural.
Wood Pulp is the basic ingredient used to make paper and related products.
www.indiamart.com /drsl   (697 words)

  
 Introduction of Wood Pulp to Papermaking after 1844
In 1844 there was patented in Germany a machine for grinding wood for the manufacture of pulp.
The printers felt that they could not use it; they were afraid to use paper made from raw wood; they were afraid it would injure their type or ruin it, and they declined to use it.
The next month he again delivered 500 reams of the wood paper, and that was used and gave great satisfaction.
palimpsest.stanford.edu /byorg/abbey/ap/ap10/ap10-2/ap10-208.html   (495 words)

  
 black marks on wood pulp » Black Marks on Wood Pulp
I almost forgot that today is the two-year anniversary of the first Black Marks on Wood Pulp (or, as it was at that time, cdubblog) post.
And with that, a new era of Black Marks on Wood Pulp is prepared to launch.
Black Marks on Wood Pulp was originally designed to serve as a sandbox for my writing.
cdub.driscocity.com /index.php/category/black-marks-on-wood-pulp   (1278 words)

  
 ErtelAlsop - Filters for the Paper and Wood Pulp Industry.
The paper industry is comprised of pulp and paper mills producing pulps for paper, paperboard or building papers and converting operations that manufacture boxes, tablets, and other finished paper products.
Pulp is made by separating fibers in wood or other cellulosic materials from non-fibrous material either mechanically or chemically.
Kraft pulping uses chemicals to dissolve the non-fibrous materials.
www.ertelalsop.com /recessed/markets/pulppaper.html   (244 words)

  
 Wood, Paper & Pulp Products Manufacturers -B2B Pulp and Paper Manufacturers Directory Taiwan,China Wood Products ...
Directory of Wood Products manufacturers & various pulp and paper manufacturer & suppliers with factories located in Taiwan and China.
Products categroies including wooden products, pulp and paper industry, wood pulp, wholesale paper product, custom wood products, outsourcing wood product etc...Offer best Taiwan quality and very competitive Chinese prices.
If you are a wood, paper & pulp manufacturer, supplier, vendor, factory, trading company, or exporter, and want to list in this directory, please click here.
www.manufacturers.com.tw /wood/Wood-Paper-Products.htm   (180 words)

  
 Woodless paper interest grows   (Site not responding. Last check: 2007-10-21)
A log truck is unloaded at the Al-Pac pulp plant in northern Alberta.
Alberta’s pulping sector is kick-starting a new trend that could see local farmers plant crops for paper production instead of food.
Interest in using crops such as flax and hemp as alternatives to wood in papermaking is high as rising global demand for paper clashes with limited forestry resources, said Wade Chute, manager of the pulp and paper division of the Alberta Research Council Inc.
www.globalhemp.com /News/2004/January/woodless_paper_interest.php   (895 words)

  
 Wood Pulp in Canada 2005
The report gives an instant overview of the Canadian wood pulp market, and covers consumption of chemical and mechanical wood pulp.
The data is supplied in both graphical and tabular format for ease of interpretation and analysis.
The AKTRIN Group of Information Centers is an international consulting firm fully dedicated to the furniture, textile and wood industries.
wood-info.com /1914.htm   (205 words)

  
 Global-production.com - Wood, Pulp & Paper
as locations of global production for wood, pulp and paper products.
Wood, Pulp and Paper ―; Trends in Global Production and Trade, May 2006
For more information about our research on global production and trade in the Wood, Pulp and Paper industries, please send us an e-mail.
www.global-production.com /wood-pulp-paper   (47 words)

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