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- Hollander_beater abstract "A Hollander beater is a machine developed by the Dutch in 1680 to produce paper pulp from cellulose containing plant fibers. It replaced stamp mills for preparing pulp because the Hollander could produce in one day the same quantity of pulp it would take a stamp mill eight days to prepare.However, the wooden paddles and beating process of a stamp mill produced longer, more easily hydrated, and more fibrillated cellulose fibers; thus increasing the resulting paper's strength. The Hollander used metal blades and a chopping action to cut the raw material, resulting in shorter cellulose fibers and weaker paper. Further, the metal blades of the Hollander often introduced metal contaminants into the paper as one metal blade struck another. These contaminants often acted as catalysts for oxidation that have been implicated in foxing.In turn, the Hollander was (partially) replaced by the conical refiner (or Jordan refiner, named after its inventor Joseph Jordan.A Hollander beater design consists of a circular or ovoid water raceway with a beater wheel at a single point along the raceway. The beater wheel is a centrifugal compressor or radial impeller cylinder parallel to a grooved plate, similar to the construction of a water wheel or timing pulley. Under power, the blades rotate to beat the fiber into a usable pulp slurry. The beater wheel and plate do not touch, as this would result in cutting, but the distance between the two is often adjusted to increase or reduce the level of pressure the fibers are compressed to pass through the beater.The objective of using a beater (rather than some other process like grinding, as many wood-pulp mills do) is to create longer, hydrated, fibrillated fibers. (Fibrillated fibers are abraded to the extent that many partially broken-off fibers extend from the main fiber, increasing the fiber's surface area, and therefore its potential for hydrogen bonding). Grinding of fibers is not desirable. Therefore, the \"blades\" are not what you might think of as \"sharpened,\" and well-designed beaters will make it possible to minimize the shear action of the rotating blades against the bottom of the water raceway.".
- Hollander_beater thumbnail Hollander_beater.gif?width=300.
- Hollander_beater wikiPageExternalLink paperproject.org.
- Hollander_beater wikiPageExternalLink technology.htm.
- Hollander_beater wikiPageExternalLink made.asp.
- Hollander_beater wikiPageExternalLink beaters.html.
- Hollander_beater wikiPageID "7719047".
- Hollander_beater wikiPageLength "3921".
- Hollander_beater wikiPageOutDegree "17".
- Hollander_beater wikiPageRevisionID "705772466".
- Hollander_beater wikiPageWikiLink Category:Crafts.
- Hollander_beater wikiPageWikiLink Category:Dutch_inventions.
- Hollander_beater wikiPageWikiLink Category:Industrial_processes.
- Hollander_beater wikiPageWikiLink Category:Paper.
- Hollander_beater wikiPageWikiLink Category:Papermaking.
- Hollander_beater wikiPageWikiLink Category:Pulp_and_paper_industry.
- Hollander_beater wikiPageWikiLink Category:Pulp_and_paper_mills.
- Hollander_beater wikiPageWikiLink Conical_refiner.
- Hollander_beater wikiPageWikiLink File:Hollander_beater.gif.
- Hollander_beater wikiPageWikiLink Foxing.
- Hollander_beater wikiPageWikiLink Hydrogen_bond.
- Hollander_beater wikiPageWikiLink Paper.
- Hollander_beater wikiPageWikiLink Pulp_(paper).
- Hollander_beater wikiPageWikiLink Stamp_mill.
- Hollander_beater wikiPageWikiLink Water_wheel.
- Hollander_beater wikiPageWikiLink Category:Book_Arts.
- Hollander_beater wikiPageWikiLink File:Hollander_beater.jpg.
- Hollander_beater wikiPageWikiLinkText "Hollander beater".
- Hollander_beater wikiPageWikiLinkText "beater".
- Hollander_beater wikiPageUsesTemplate Template:Close_paraphrasing.
- Hollander_beater wikiPageUsesTemplate Template:Paper.
- Hollander_beater wikiPageUsesTemplate Template:Reflist.
- Hollander_beater subject Category:Crafts.
- Hollander_beater subject Category:Dutch_inventions.
- Hollander_beater subject Category:Industrial_processes.
- Hollander_beater subject Category:Paper.
- Hollander_beater subject Category:Papermaking.
- Hollander_beater subject Category:Pulp_and_paper_industry.
- Hollander_beater subject Category:Pulp_and_paper_mills.
- Hollander_beater subject Category:Book_Arts.
- Hollander_beater hypernym Machine.
- Hollander_beater type Software.
- Hollander_beater type Art.
- Hollander_beater type Process.
- Hollander_beater comment "A Hollander beater is a machine developed by the Dutch in 1680 to produce paper pulp from cellulose containing plant fibers. It replaced stamp mills for preparing pulp because the Hollander could produce in one day the same quantity of pulp it would take a stamp mill eight days to prepare.However, the wooden paddles and beating process of a stamp mill produced longer, more easily hydrated, and more fibrillated cellulose fibers; thus increasing the resulting paper's strength.".
- Hollander_beater label "Hollander beater".
- Hollander_beater sameAs Q1474867.
- Hollander_beater sameAs Hollænder_(papirfremstilling).
- Hollander_beater sameAs Papierholländer.
- Hollander_beater sameAs Ολλανδός_(μηχανή).
- Hollander_beater sameAs Cylindre_hollandais.
- Hollander_beater sameAs Hollander_(papier).
- Hollander_beater sameAs m.0269vb6.
- Hollander_beater sameAs Holender.
- Hollander_beater sameAs Holländare_(pappersmassa).
- Hollander_beater sameAs Q1474867.
- Hollander_beater wasDerivedFrom Hollander_beater?oldid=705772466.
- Hollander_beater depiction Hollander_beater.gif.
- Hollander_beater isPrimaryTopicOf Hollander_beater.