EP0933142A3 - Verfahren zur Windsichtung von Toner - Google Patents

Verfahren zur Windsichtung von Toner Download PDF

Info

Publication number
EP0933142A3
EP0933142A3 EP99100551A EP99100551A EP0933142A3 EP 0933142 A3 EP0933142 A3 EP 0933142A3 EP 99100551 A EP99100551 A EP 99100551A EP 99100551 A EP99100551 A EP 99100551A EP 0933142 A3 EP0933142 A3 EP 0933142A3
Authority
EP
European Patent Office
Prior art keywords
classification
toner
zone
rotor
spiral
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP99100551A
Other languages
English (en)
French (fr)
Other versions
EP0933142A2 (de
EP0933142B1 (de
Inventor
Marcus Dipl.-Ing Adam
Stefano Dipl.-Ing. Zampini
Bodo Dr.-Ing. Furchner
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hosokawa Alpine AG
Original Assignee
Hosokawa Alpine AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hosokawa Alpine AG filed Critical Hosokawa Alpine AG
Publication of EP0933142A2 publication Critical patent/EP0933142A2/de
Publication of EP0933142A3 publication Critical patent/EP0933142A3/de
Application granted granted Critical
Publication of EP0933142B1 publication Critical patent/EP0933142B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B7/00—Selective separation of solid materials carried by, or dispersed in, gas currents
    • B07B7/08—Selective separation of solid materials carried by, or dispersed in, gas currents using centrifugal force
    • B07B7/083—Selective separation of solid materials carried by, or dispersed in, gas currents using centrifugal force generated by rotating vanes, discs, drums, or brushes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B11/00—Arrangement of accessories in apparatus for separating solids from solids using gas currents
    • B07B11/06—Feeding or discharging arrangements
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G9/00—Developers
    • G03G9/08—Developers with toner particles
    • G03G9/0802—Preparation methods
    • G03G9/0817—Separation; Classifying

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Combined Means For Separation Of Solids (AREA)
  • Developing Agents For Electrophotography (AREA)
  • Control Or Security For Electrophotography (AREA)

Abstract

Die Erfindung betrifft ein Verfahren zur Windsichtung von Toner für die Entwicklung elektrostatischer Bilder wobei aus einem aus Pulver mit einer breiten Kornverteilung bestehendes Tonerprodukt ein höherwertiges Tonerprodukt mit einer engen Kornverteilung gewonnen wird, indem die Verweilzeit des Tonerproduktes in der Sichtzone dadurch gesteuert wird, daß Mittel vorgesehen sind, die im oberen Bereich der Sichtzone das Tonerprodukt im homogenen Zustand schnell in die Sichtzone einbringen, die im mittleren Bereich der Sichtzone das Tonerprodukt länger verweilen lassen und im anschließenden unteren Bereich der Sichtzone einen zügigen Abtransport des Tonerproduktes aus der Sichtzone ermöglichen, wodurch Toner mit einer sehr engen Partikelgrößenverteilung erhalten werden können.
EP99100551A 1998-01-28 1999-01-13 Verfahren zur Windsichtung von Toner Expired - Lifetime EP0933142B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19803107 1998-01-28
DE19803107A DE19803107A1 (de) 1998-01-28 1998-01-28 Verfahren zur Windsichtung von Toner

Publications (3)

Publication Number Publication Date
EP0933142A2 EP0933142A2 (de) 1999-08-04
EP0933142A3 true EP0933142A3 (de) 2000-07-19
EP0933142B1 EP0933142B1 (de) 2002-06-05

Family

ID=7855831

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99100551A Expired - Lifetime EP0933142B1 (de) 1998-01-28 1999-01-13 Verfahren zur Windsichtung von Toner

Country Status (4)

Country Link
EP (1) EP0933142B1 (de)
JP (1) JPH11288133A (de)
AT (1) ATE218399T1 (de)
DE (2) DE19803107A1 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10007794A1 (de) 2000-02-21 2001-06-28 Zimmer Ag Polymerzusammensetzung und daraus hergestellter Formkörper
US6776291B1 (en) * 2000-09-27 2004-08-17 Xerox Corporation Article and apparatus for particulate size separation
JP5078138B2 (ja) * 2007-08-23 2012-11-21 アシザワ・ファインテック株式会社 遠心分級機

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4304360A (en) * 1979-12-31 1981-12-08 International Business Machines Corporation Xerograhic toner manufacture
DE3915641A1 (de) * 1989-05-12 1990-11-15 Canon Kk Windsichter sowie verfahren und vorrichtung zur erzeugung von toner
DE4014342A1 (de) * 1990-05-04 1991-11-07 Heinz Jaeger Windsichter
EP0836893A2 (de) * 1996-10-18 1998-04-22 HOSOKAWA ALPINE Aktiengesellschaft Vertikalachsiger Windsichter

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4304360A (en) * 1979-12-31 1981-12-08 International Business Machines Corporation Xerograhic toner manufacture
DE3915641A1 (de) * 1989-05-12 1990-11-15 Canon Kk Windsichter sowie verfahren und vorrichtung zur erzeugung von toner
DE4014342A1 (de) * 1990-05-04 1991-11-07 Heinz Jaeger Windsichter
EP0836893A2 (de) * 1996-10-18 1998-04-22 HOSOKAWA ALPINE Aktiengesellschaft Vertikalachsiger Windsichter

Also Published As

Publication number Publication date
DE19803107A1 (de) 1999-07-29
DE59901580D1 (de) 2002-07-11
EP0933142A2 (de) 1999-08-04
EP0933142B1 (de) 2002-06-05
ATE218399T1 (de) 2002-06-15
JPH11288133A (ja) 1999-10-19

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