GB1255762A - Process for producing developers for electrostatic latent images - Google Patents

Process for producing developers for electrostatic latent images

Info

Publication number
GB1255762A
GB1255762A GB5133/70A GB513370A GB1255762A GB 1255762 A GB1255762 A GB 1255762A GB 5133/70 A GB5133/70 A GB 5133/70A GB 513370 A GB513370 A GB 513370A GB 1255762 A GB1255762 A GB 1255762A
Authority
GB
United Kingdom
Prior art keywords
gelatine
dispersion
resin
carrier liquid
organic solvent
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
GB5133/70A
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 GB1255762A publication Critical patent/GB1255762A/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
    • G03G9/13—Developers with toner particles in liquid developer mixtures characterised by polymer components
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G13/00—Electrographic processes using a charge pattern
    • G03G13/26—Electrographic processes using a charge pattern for the production of printing plates for non-xerographic printing processes
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G8/00—Layers covering the final reproduction, e.g. for protecting, for writing thereon
    • 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

Abstract

1,255,762. Electro-photography. FUJI PHOTO FILM CO. Ltd. Feb.3, 1970 [Feb.3, 1969], No.5133/70. Addition to 1, 255, 763. Heading G2H. In the production of a printing plate using a dispersion of gelatine in carrier liquid as electrostatic latent image developing agent, the dispersion is produced by (a) dispersing a 1-20% aqueous solution of gelatine (optionally containing an alcohol in an amount insufficient to cause precipitation of the gelatine) in an organic solvent which is miscible with water but is a non-solvent for gelatine to form a dispersion of gelatine particles, (b) adding to the dispersion a solution of a resin which is insoluble in the organic solvent but soluble in the carrier liquid to form a coprecipitate of gelatine and resin, and (c) adding the co-precipitate to the carrier liquid. The proportion of solvent to gelatine solution may be 10-300. The organic solvent may be dimethyl or methyl ethyl ketone or ethyl alcohol. It may contain a vegetable oil or surface active agent. Dispersion in the organic solvent may be effected by ultrasonic or high-speed stirring. The resin may be polyisobutylene, polybutylene, polystyrene, styrene-butadiene copolymer, or a resinmodified phenol-formaldehyde resin. The resin solvent may be xylene, toluene, or methyl, ethyl or butyl acetate. The co-precipitate may be separated by decantation followed by centrifuging. The carrier liquid may be cyclohexane, kerosene, heptane, hexane or gasoline. It may contain a viscosity regulator or non-ionic surface active agent.
GB5133/70A 1969-02-03 1970-02-03 Process for producing developers for electrostatic latent images Expired GB1255762A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP794469 1969-02-03

Publications (1)

Publication Number Publication Date
GB1255762A true GB1255762A (en) 1971-12-01

Family

ID=11679593

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5133/70A Expired GB1255762A (en) 1969-02-03 1970-02-03 Process for producing developers for electrostatic latent images

Country Status (7)

Country Link
US (1) US3682825A (en)
BE (1) BE745390A (en)
CA (1) CA924165A (en)
DE (1) DE2004817C3 (en)
FR (1) FR2031283A5 (en)
GB (1) GB1255762A (en)
NL (1) NL7001351A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3878120A (en) * 1966-11-28 1975-04-15 Shinichiro Nagashima Process for preparing liquid developer for electrostatic images
NL7001443A (en) * 1969-02-05 1970-08-07
US4040828A (en) * 1975-01-06 1977-08-09 Xerox Corporation Multicolor imaging method and imaged member employing combinations of transparent toner and colorant
US4238480A (en) * 1978-05-19 1980-12-09 Sawyer Philip Nicholas Method for preparing an improved hemostatic agent and method of employing the same

Also Published As

Publication number Publication date
BE745390A (en) 1970-07-16
DE2004817B2 (en) 1974-04-25
US3682825A (en) 1972-08-08
CA924165A (en) 1973-04-10
DE2004817A1 (en) 1970-08-20
NL7001351A (en) 1970-08-05
DE2004817C3 (en) 1975-01-02
FR2031283A5 (en) 1970-11-13

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