GB1355442A - Liquid developer for electrophotography - Google Patents

Liquid developer for electrophotography

Info

Publication number
GB1355442A
GB1355442A GB4730271A GB4730271A GB1355442A GB 1355442 A GB1355442 A GB 1355442A GB 4730271 A GB4730271 A GB 4730271A GB 4730271 A GB4730271 A GB 4730271A GB 1355442 A GB1355442 A GB 1355442A
Authority
GB
United Kingdom
Prior art keywords
parts
toner
carrier liquid
liquid developer
diisobutylene
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
GB4730271A
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.)
Fujifilm Holdings Corp
Original Assignee
Fuji Photo Film Co 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 Fuji Photo Film Co Ltd filed Critical Fuji Photo Film Co Ltd
Publication of GB1355442A publication Critical patent/GB1355442A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • G03G9/12—Developers with toner particles in liquid developer mixtures
    • G03G9/135—Developers with toner particles in liquid developer mixtures characterised by stabiliser or charge-controlling agents
    • 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
    • G03G9/12—Developers with toner particles in liquid developer mixtures
    • G03G9/13—Developers with toner particles in liquid developer mixtures characterised by polymer components
    • G03G9/131—Developers with toner particles in liquid developer mixtures characterised by polymer components obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • 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
    • G03G9/12—Developers with toner particles in liquid developer mixtures
    • G03G9/13—Developers with toner particles in liquid developer mixtures characterised by polymer components
    • G03G9/132—Developers with toner particles in liquid developer mixtures characterised by polymer components obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Liquid Developers In Electrophotography (AREA)

Abstract

1355442 Electro-photography FUJI PHOTO FILM CO Ltd 11 Oct 1971 [12 Oct 1970] 47302/71 Heading G2H A liquid developer comprising toner particles dispersed in an insulative carrier liquid contains a copolymer of a half-C 6-24 alkylamide of maleic acid and diisobutylene as charge control agent in an amount of 0À0003-0À5 parts per 1000 parts of carrier liquid. The liquid developer contains 0À5-50 parts of toner per 1000 parts of carrier liquid and has an electrical resistivity (measured in the absence of toner) of at least 5 x 10<SP>10</SP> ohm cm. The ratio of half-alkylamide to diisobutylene may be 1:1 to 1:5. The number of monomeric units in the copolymer may be 4-50. The developer preferably also contains an organic acid. A soluble resin may be employed as fixing agent; or the toner may comprise resin formed in the presence of pigment.
GB4730271A 1970-10-12 1971-10-11 Liquid developer for electrophotography Expired GB1355442A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP45088778A JPS4926594B1 (en) 1970-10-12 1970-10-12

Publications (1)

Publication Number Publication Date
GB1355442A true GB1355442A (en) 1974-06-05

Family

ID=13952299

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4730271A Expired GB1355442A (en) 1970-10-12 1971-10-11 Liquid developer for electrophotography

Country Status (3)

Country Link
JP (1) JPS4926594B1 (en)
DE (1) DE2150802C3 (en)
GB (1) GB1355442A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4275136A (en) 1979-04-27 1981-06-23 Ishihara Sangyo Kaisha, Ltd. Liquid developer for color electrophotography

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4062789A (en) * 1970-10-12 1977-12-13 Fuji Photo Film Co., Ltd. Liquid developer for electrophotography

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4275136A (en) 1979-04-27 1981-06-23 Ishihara Sangyo Kaisha, Ltd. Liquid developer for color electrophotography

Also Published As

Publication number Publication date
JPS4926594B1 (en) 1974-07-10
DE2150802A1 (en) 1972-04-27
DE2150802C3 (en) 1975-08-21
DE2150802B2 (en) 1975-01-16

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Legal Events

Date Code Title Description
PS Patent sealed
PE20 Patent expired after termination of 20 years