GB835480A - Electrographic printing pigments and process for their production - Google Patents

Electrographic printing pigments and process for their production

Info

Publication number
GB835480A
GB835480A GB33178/57A GB3317857A GB835480A GB 835480 A GB835480 A GB 835480A GB 33178/57 A GB33178/57 A GB 33178/57A GB 3317857 A GB3317857 A GB 3317857A GB 835480 A GB835480 A GB 835480A
Authority
GB
United Kingdom
Prior art keywords
pigment
resin
volatile liquid
microns
diameter
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
GB33178/57A
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.)
Godfrey L Cabot Inc
Original Assignee
Godfrey L Cabot Inc
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 Godfrey L Cabot Inc filed Critical Godfrey L Cabot Inc
Publication of GB835480A publication Critical patent/GB835480A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D11/00—Inks
    • C09D11/52—Electrically conductive inks
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK  ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
    • C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
    • C09C1/44—Carbon
    • C09C1/48—Carbon black
    • C09C1/56—Treatment of carbon black ; Purification
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK  ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
    • C09C3/00—Treatment in general of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties
    • C09C3/10—Treatment with macromolecular organic compounds
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D17/00—Pigment pastes, e.g. for mixing in paints
    • 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
    • G03G9/0821—Developers with toner particles characterised by physical parameters
    • 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
    • G03G9/0821—Developers with toner particles characterised by physical parameters
    • G03G9/0823—Electric parameters
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/30—Particle morphology extending in three dimensions
    • C01P2004/32—Spheres
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/50—Agglomerated particles
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/60—Particles characterised by their size
    • C01P2004/61—Micrometer sized, i.e. from 1-100 micrometer
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/80—Particles consisting of a mixture of two or more inorganic phases
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/11—Powder tap density
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/12—Surface area
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/20—Powder free flowing behaviour
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/40—Electric properties

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Inks, Pencil-Leads, Or Crayons (AREA)

Abstract

A dry electrographic printing ink pigment comprises free-flowing aggregates of diameter 3-120 microns comprising discrete particles of pigment (carbon black specified) coated and bonded together with a polymer organic resin in the proportion of 5-500 parts resin per 100 pigment; the pigment particles must have an electrical resistivity at par density across a bed one inch in depth not in excess of 100,000 ohms at any relative humidity. The ink pigment may be prepared by forming a sprayable dispersion of the finely-divided pigment and resin in the correct proportions in a volatile liquid atomizing the dispersion of a droplet size such that all thereof on evaporation of the volatile liquid will be 3-120 microns in diameter, suspending the droplets in hot gases of sufficient heat capacity to evaporate all the volatile liquid, thereby forming dry, solid aggregates of pigment and resin.ALSO:A dry electrographic printing ink pigment comprises free-flowing aggregates of diameter 3-120 microns comprising discrete particles of pigment coated and bonded together with a polymeric organic resin in the proportion of 5-500 parts resin per 100 pigment. By resin is meant any natural or synthetic rubber, e.g. latices of natural rubber, butadiene-styrene, or latices of polyvinyl acetate polyvinyl chloride or polyethylene, while the pigment particles must have an electrical resistivity at pour density across a bed one inch in depth not in excess of 100,000 ohms at any relative humidity. Carbon black is the specified pigment. The ink pigment may be prepared by forming a sprayable dispersion of the finely divided pigment and resin in the correct proportions in a volatile liquid, atomizing the dispersion of a droplet size such that all thereof on evaporation of the volatile liquid will be 3-120 microns in diameter, suspending the droplets in hot gases of sufficient heat capacity to evaporate all the volatile liquid, thereby forming dry solid aggregates of pigment and resin.
GB33178/57A 1956-12-03 1957-10-24 Electrographic printing pigments and process for their production Expired GB835480A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US835480XA 1956-12-03 1956-12-03

Publications (1)

Publication Number Publication Date
GB835480A true GB835480A (en) 1960-05-18

Family

ID=22179042

Family Applications (1)

Application Number Title Priority Date Filing Date
GB33178/57A Expired GB835480A (en) 1956-12-03 1957-10-24 Electrographic printing pigments and process for their production

Country Status (3)

Country Link
BE (1) BE562909A (en)
FR (1) FR1193698A (en)
GB (1) GB835480A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110559675A (en) * 2019-09-20 2019-12-13 新疆天业（集团）有限公司 Paste resin drying production control method

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3280741A (en) * 1958-12-31 1966-10-25 Burroughs Corp Electrostatic recording
GB2174621B (en) * 1985-04-18 1988-11-16 Canon Kk Process for producing toner for developing electrostatic images and apparatus therefor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110559675A (en) * 2019-09-20 2019-12-13 新疆天业（集团）有限公司 Paste resin drying production control method

Also Published As

Publication number Publication date
BE562909A (en)
FR1193698A (en) 1959-11-04

Similar Documents

Publication Publication Date Title
US3196032A (en) Process for producing electrostatic ink powder
GB781037A (en) Improvements in and relating to printers' makeready
GB932998A (en) Improvements in rotating heads for electrostatic atomising and spraying apparatus
ES328506A1 (en) A method of production of a thermoplastic film. (Machine-translation by Google Translate, not legally binding)
GB790241A (en) Method of making microporous film
GB801427A (en) Improvements in or relating to pelleted polychloroprene
GB936618A (en) Improvements in the development of electrostatic images
GB1239226A (en)
US3639640A (en) Electrostatographic recording element
GB835480A (en) Electrographic printing pigments and process for their production
GB1257452A (en)
JPS5586789A (en) Heat-sensitive recording material
GB940242A (en) Electrophotography
ES431567A1 (en) Toner composition for electrostatography
GB767074A (en) Electrically inscribable lithographic offset printing plate
US3293059A (en) Electrostatic image fixing method employing ink and record medium having chemical similarity
GB1025475A (en) Improvements in or relating to transfer media
GB885641A (en) Improvements in or relating to duplicating media
JPS5793193A (en) Manufacture of recording sheet
GB842655A (en) Improvements in or relating to colouring materials
JPS5555431A (en) Magnetic recording medium
US3111421A (en) Method for preparing pressure-sensitive duplicating elements
JPS5553592A (en) Recording material
GB869295A (en) Conductive paint and its application
GB890430A (en) Method of marking perfluorocarbon resin surfaces