ES442038A1 - Method of producing coated carrier particles for toner particles - Google Patents

Method of producing coated carrier particles for toner particles

Info

Publication number
ES442038A1
ES442038A1 ES442038A ES442038A ES442038A1 ES 442038 A1 ES442038 A1 ES 442038A1 ES 442038 A ES442038 A ES 442038A ES 442038 A ES442038 A ES 442038A ES 442038 A1 ES442038 A1 ES 442038A1
Authority
ES
Spain
Prior art keywords
particles
fluidized
layer
jet
fluidized layer
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.)
Expired
Application number
ES442038A
Other languages
Spanish (es)
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.)
Xerox Ltd
Original Assignee
Rank Xerox Ltd
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 Rank Xerox Ltd filed Critical Rank Xerox Ltd
Publication of ES442038A1 publication Critical patent/ES442038A1/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
    • B01J8/18—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles
    • B01J8/24—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles according to "fluidised-bed" technique
    • B01J8/38—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles according to "fluidised-bed" technique with fluidised bed containing a rotatable device or being subject to rotation or to a circulatory movement, i.e. leaving a vessel and subsequently re-entering it
    • B01J8/384—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles according to "fluidised-bed" technique with fluidised bed containing a rotatable device or being subject to rotation or to a circulatory movement, i.e. leaving a vessel and subsequently re-entering it being subject to a circulatory movement only
    • B01J8/386—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles according to "fluidised-bed" technique with fluidised bed containing a rotatable device or being subject to rotation or to a circulatory movement, i.e. leaving a vessel and subsequently re-entering it being subject to a circulatory movement only internally, i.e. the particles rotate within the vessel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2/00—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic
    • B01J2/006—Coating of the granules without description of the process or the device by which the granules are obtained
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B67/00—Influencing the physical, e.g. the dyeing or printing properties of dyestuffs without chemical reactions, e.g. by treating with solvents grinding or grinding assistants, coating of pigments or dyes; Process features in the making of dyestuff preparations; Dyestuff preparations of a special physical nature, e.g. tablets, films
    • C09B67/0001—Post-treatment of organic pigments or dyes
    • C09B67/0004—Coated particulate pigments or dyes
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B67/00—Influencing the physical, e.g. the dyeing or printing properties of dyestuffs without chemical reactions, e.g. by treating with solvents grinding or grinding assistants, coating of pigments or dyes; Process features in the making of dyestuff preparations; Dyestuff preparations of a special physical nature, e.g. tablets, films
    • C09B67/0071—Process features in the making of dyestuff preparations; Dehydrating agents; Dispersing agents; Dustfree compositions
    • C09B67/0092—Dyes in solid form
    • C09B67/0095—Process features in the making of granulates

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Developing Agents For Electrophotography (AREA)
  • Glanulating (AREA)

Abstract

A method of preparing coated support particles that consists of fluidizing a layer of support cores by passing a first gas circulation through said layer; passing a second gas flow through said fluidized layer to produce from it, at least one jet of particles, at least one dividing surface being arranged in said fluidized layer to produce a predetermined cyclical circulation of the particles, causing the particles to move at least in said first jet from the bulk mass of said fluidized layer, being discharged on top of said fluidized layer from at least said jet thus returning to said fluidized layer to be reinjected into said jet at least; and contacting the fluidized support cores and/or the fluidized coated support cores of said fluidized layer with the coating material. (Machine-translation by Google Translate, not legally binding)
ES442038A 1974-10-24 1975-10-23 Method of producing coated carrier particles for toner particles Expired ES442038A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4602974A GB1481034A (en) 1974-10-24 1974-10-24 Method of producing coated carrier particles for toner particles

Publications (1)

Publication Number Publication Date
ES442038A1 true ES442038A1 (en) 1977-03-16

Family

ID=10439552

Family Applications (1)

Application Number Title Priority Date Filing Date
ES442038A Expired ES442038A1 (en) 1974-10-24 1975-10-23 Method of producing coated carrier particles for toner particles

Country Status (4)

Country Link
CA (1) CA1062966A (en)
ES (1) ES442038A1 (en)
GB (1) GB1481034A (en)
NL (1) NL7512463A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH635862A5 (en) * 1977-10-15 1983-04-29 Ciba Geigy Ag Process for granulation of pigments.
US5254168A (en) * 1992-06-04 1993-10-19 Howard Littman Coating apparatus having opposed atomizing nozzles in a fluid bed column
US5470387A (en) * 1994-03-07 1995-11-28 Niro A/S Continuous multicell process and apparatus for particle coating including particle recirculation
US20240024915A1 (en) * 2022-07-25 2024-01-25 Spraying Systems Co. Fluidized bed coating apparatus

Also Published As

Publication number Publication date
NL7512463A (en) 1976-04-27
CA1062966A (en) 1979-09-25
GB1481034A (en) 1977-07-27

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