Magnetic deinking

Ink particles which have been dislodged from wastepaper during aqueous deinking can be concentrated and removed from the aqueous treated fiber suspension (47) by the use of a magnetic field (magnets 45,46). Toner inks commonly used for electrostatic printing are especially suitable for removal by th...

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Bibliographische Detailangaben
Hauptverfasser:	FUNG-JOU CHEN, JAMES MARTIN KAUN
Format:	Patent
Sprache:	eng
Schlagworte:	APPARATUS THEREFOR APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL ORCHEMICAL PROCESSES FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLIDMATERIALS OR FLUIDS MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROMSOLID MATERIALS OR FLUIDS PAPER-MAKING PERFORMING OPERATIONS PRODUCTION OF CELLULOSE PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCESFROM CELLULOSE-CONTAINING MATERIALS REGENERATION OF PULPING LIQUORS SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATICTABLES OR JIGS TEXTILES TRANSPORTING
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Beschreibung
Zusammenfassung:	Ink particles which have been dislodged from wastepaper during aqueous deinking can be concentrated and removed from the aqueous treated fiber suspension (47) by the use of a magnetic field (magnets 45,46). Toner inks commonly used for electrostatic printing are especially suitable for removal by this method.