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http://dbpedia.org/ontology/abstract A Hollander beater is a machine developed 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 macerating action to separate 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 browning of old paper called foxing. In turn, the Hollander was (partially) replaced by the conical refiner or Jordan refiner, named after its American inventor Joseph Jordan, who patented the device in 1858. 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. The distance between the two is adjusted to increase or decrease the pressure on the fibers when passing through the beater. The objective of using a beater (rather than another 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 hence its potential for hydrogen bonding). Grinding of fibers is not desirable. Therefore, the "blades" are not what might be thought of as "sharpened", and well-designed beaters make it possible to minimize the shear action of the rotating blades against the bottom of the water raceway.s against the bottom of the water raceway. , Ο Ολλανδός ήταν μια από τις σημαντικότερες επινοήσεις του 17ου αιώνα στο χώρο παραγωγής χαρτιού. Ο μηχανισμός αυτός έπαιξε σημαντικό ρόλο τόσο στην παραγωγή χαρτιού όσο και στην τυπογραφία, ενώ με το πέρασμα των χρόνων βελτιωνόταν. , Le cylindre hollandais, ou pile hollandaisLe cylindre hollandais, ou pile hollandaise, est une machine qui fut utilisée en papeterie. Mise au point aux Pays-Bas en 1673 par les Hollandais, elle réduit considérablement les opérations de défibration réalisées avec la pile à maillets.Dans une cuve remplie d'eau, le déchiquetage du chiffon se réalise grâce à la rotation d'un cylindre hérissé de lames coupantes et d'une planche garnie de clous. Ce système de pile défileuse permet de traiter le chiffon en quelques heures sans mûrissement préalable. * Portail des Pays-Basssement préalable. * Portail des Pays-Bas , Een maalbak of Hollander is een machine diEen maalbak of Hollander is een machine die gebruikt wordt om de papiervezels voor te behandelen voor de productie van papier. Het is een van oorsprong Nederlandse uitvinding (vandaar de naam) die een revolutie teweegbracht in het papiermaken. De maalbak werd in de Zaanstreek uitgevonden en in 1672 verder geschikt gemaakt voor de bereiding van papier. De Hollander bestaat uit een kuip die gevuld wordt met een mengsel van papiervezels (vezels uit hout of uit kleren) en water. In de kuip bevindt zich een trommel met messen erop (ijzeren staven) die wordt aangedreven. Normaliter is de bodem onder de trommel aangepast zodat het de contouren van de trommel volgt. Op de bodem zijn ook messen, de maalplaat, aangebracht. De vezel komt tussen de messen, waardoor deze of wordt geknipt of wordt beschadigd. Het knippen en beschadigen verkort de vezel, waardoor het papier fijner wordt. Het beschadigen is een proces waarbij fibrillen uit de oppervlakte van de vezel worden losgemaakt. Hierdoor wordt de oppervlakte van de vezel vergroot en worden meer plaatsen vrijgemaakt voor het vormen van een waterstofbrug, die zorgt voor de binding tussen de vezels. Het behandelen van papiervezels met de Hollander zorgt dus voor een sterker papier. Afhankelijk van de ingestelde afstand tussen de messen op de rotor en op de stator zal de maling meer knippend zijn of meer fibrillerend. De afstand wordt met de binnen- en buitenlicht ingesteld afhankelijk van de papiersoort die wordt geproduceerd. Door het bewegen van de trommel ontstaat een pompende beweging zodat de vezelmassa wordt gecirculeerd; hierdoor wordt verzekerd dat alle vezels behandeld worden. De Hollander, vroeger heel algemeen gebruikt, wordt alleen nog ingezet voor heel speciale papiersoorten. Tegenwoordig wordt de maling van de vezels gedaan met een refiner.ling van de vezels gedaan met een refiner. , Un battitore olandese è una macchina sviluUn battitore olandese è una macchina sviluppata dagli olandesi nel 1680 per produrre pasta di carta dalla cellulosa contenente fibre vegetali. Ha sostituito i mulini per la preparazione della polpa perché gli olandesi potevano produrre in un giorno la stessa quantità di polpa che in un mulino avrebbe richiesto otto giorni. Tuttavia, le pale di legno e il processo di battitura di un mulino producevano fibre di cellulosa più lunghe, più facilmente idratate e più fibrillate; aumentando così la forza della carta risultante. L'olandese utilizzava lame di metallo e un'azione di taglio per tagliare la materia prima, ottenendo fibre di cellulosa più corte e carta più debole. Inoltre, le lame metalliche dell'olandese spesso introducevano contaminanti metallici nella carta quando una lama ne colpiva un'altra. Questi contaminanti agivano spesso da catalizzatori per l'ossidazione che è stata trovata nella doratura della vecchia carta chiamata fioritura. A sua volta, l'olandese fu (parzialmente) sostituito dal raffinatore conico o raffinatore Jordan, dal nome del suo inventore americano, Joseph Jordan, che brevettò il dispositivo nel 1858. Il design di un battitore olandese consiste in una pista d'acqua circolare o ovoidale con una ruota battente in un unico punto lungo la pista. La ruota battente è un compressore centrifugo o un cilindro a girante radiale parallelo a una piastra scanalata, simile alla costruzione di una ruota idraulica o di una puleggia dentata. Sotto la potenza, le lame ruotano per battere la fibra in un impasto di polpa utilizzabile. La ruota e la piastra del battitore non si toccano, poiché ciò comporterebbe il taglio. La distanza tra le due è regolata per aumentare o diminuire la pressione sulle fibre durante il passaggio attraverso la frusta. L'obiettivo di utilizzare una frusta (piuttosto che un altro processo come la macinazione, come fanno molti mulini di pasta di legno) è quello di creare fibre più lunghe, idratate e fibrillate (le fibre fibrillate vengono abrase nella misura in cui molte fibre parzialmente rotte si estendono dalla fibra principale, aumentando la superficie della fibra e quindi il suo potenziale di legame a idrogeno). La molatura delle fibre non è desiderabile. Pertanto, le "lame" non sono ciò che si potrebbe pensare "affilate", e battitori ben progettati consentono di ridurre al minimo l'azione di taglio delle lame rotanti contro il fondo della canaletta dell'acqua. Lavorazione della polpa in una frusta olandese (1947) della polpa in una frusta olandese (1947) , Der Papierholländer, meist kurz Holländer Der Papierholländer, meist kurz Holländer genannt, ist eine Maschine, mit der bei der historischen Papierherstellung Lumpen oder Hadern zerkleinert und zerfasert wurden. Er wurde auch als holländisches Geschirr bezeichnet. Der Holländer ersetzte in der vorindustriellen Papiermacherei in Deutschland ab dem 18. Jahrhundert das Stampfwerk oder Pochwerk, das deutsche Geschirr. In der Zeit der industriellen Papierherstellung wurden Zellstoff, Holzstoffe und Altpapier in Holländern verarbeitet. In Spezialbereichen werden Holländer auch heute noch eingesetzt.rden Holländer auch heute noch eingesetzt. , En holländare är en maskin som används för att mala våt pappersmassa. Maskinen uppfanns i Holland på 1600-talet. Med hjälp av roterande knivar slits textilier ner till den fiberstorlek som önskas.
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rdfs:comment Le cylindre hollandais, ou pile hollandaisLe cylindre hollandais, ou pile hollandaise, est une machine qui fut utilisée en papeterie. Mise au point aux Pays-Bas en 1673 par les Hollandais, elle réduit considérablement les opérations de défibration réalisées avec la pile à maillets.Dans une cuve remplie d'eau, le déchiquetage du chiffon se réalise grâce à la rotation d'un cylindre hérissé de lames coupantes et d'une planche garnie de clous. Ce système de pile défileuse permet de traiter le chiffon en quelques heures sans mûrissement préalable. * Portail des Pays-Basssement préalable. * Portail des Pays-Bas , Un battitore olandese è una macchina sviluUn battitore olandese è una macchina sviluppata dagli olandesi nel 1680 per produrre pasta di carta dalla cellulosa contenente fibre vegetali. Ha sostituito i mulini per la preparazione della polpa perché gli olandesi potevano produrre in un giorno la stessa quantità di polpa che in un mulino avrebbe richiesto otto giorni. A sua volta, l'olandese fu (parzialmente) sostituito dal raffinatore conico o raffinatore Jordan, dal nome del suo inventore americano, Joseph Jordan, che brevettò il dispositivo nel 1858. Lavorazione della polpa in una frusta olandese (1947) della polpa in una frusta olandese (1947) , Ο Ολλανδός ήταν μια από τις σημαντικότερες επινοήσεις του 17ου αιώνα στο χώρο παραγωγής χαρτιού. Ο μηχανισμός αυτός έπαιξε σημαντικό ρόλο τόσο στην παραγωγή χαρτιού όσο και στην τυπογραφία, ενώ με το πέρασμα των χρόνων βελτιωνόταν. , Der Papierholländer, meist kurz Holländer Der Papierholländer, meist kurz Holländer genannt, ist eine Maschine, mit der bei der historischen Papierherstellung Lumpen oder Hadern zerkleinert und zerfasert wurden. Er wurde auch als holländisches Geschirr bezeichnet. Der Holländer ersetzte in der vorindustriellen Papiermacherei in Deutschland ab dem 18. Jahrhundert das Stampfwerk oder Pochwerk, das deutsche Geschirr. In der Zeit der industriellen Papierherstellung wurden Zellstoff, Holzstoffe und Altpapier in Holländern verarbeitet. In Spezialbereichen werden Holländer auch heute noch eingesetzt.rden Holländer auch heute noch eingesetzt. , A Hollander beater is a machine developed 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. In turn, the Hollander was (partially) replaced by the conical refiner or Jordan refiner, named after its American inventor Joseph Jordan, who patented the device in 1858.h Jordan, who patented the device in 1858. , Een maalbak of Hollander is een machine diEen maalbak of Hollander is een machine die gebruikt wordt om de papiervezels voor te behandelen voor de productie van papier. Het is een van oorsprong Nederlandse uitvinding (vandaar de naam) die een revolutie teweegbracht in het papiermaken. De maalbak werd in de Zaanstreek uitgevonden en in 1672 verder geschikt gemaakt voor de bereiding van papier. Door het bewegen van de trommel ontstaat een pompende beweging zodat de vezelmassa wordt gecirculeerd; hierdoor wordt verzekerd dat alle vezels behandeld worden.erzekerd dat alle vezels behandeld worden. , En holländare är en maskin som används för att mala våt pappersmassa. Maskinen uppfanns i Holland på 1600-talet. Med hjälp av roterande knivar slits textilier ner till den fiberstorlek som önskas.
rdfs:label Hollander beater , Cylindre hollandais , Holländare (pappersmassa) , Ολλανδός (μηχανή) , Hollander (papier) , Battitore olandese , Papierholländer
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