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WO1988003669A1 - High-quality color printer - Google Patents

High-quality color printer Download PDF

Info

Publication number
WO1988003669A1
WO1988003669A1 PCT/US1987/002813 US8702813W WO8803669A1 WO 1988003669 A1 WO1988003669 A1 WO 1988003669A1 US 8702813 W US8702813 W US 8702813W WO 8803669 A1 WO8803669 A1 WO 8803669A1
Authority
WO
WIPO (PCT)
Prior art keywords
solvent
softening temperature
hydrophobic polymer
polymer surface
dyestuff
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.)
Ceased
Application number
PCT/US1987/002813
Other languages
French (fr)
Other versions
WO1988003669A2 (en
Inventor
Kenneth W Gardiner
Ronald Swidler
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.)
SRI International Inc
Original Assignee
SRI International Inc
Stanford Research Institute
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 SRI International Inc, Stanford Research Institute filed Critical SRI International Inc
Priority to GB08814495A priority Critical patent/GB2204419A/en
Publication of WO1988003669A1 publication Critical patent/WO1988003669A1/en
Publication of WO1988003669A2 publication Critical patent/WO1988003669A2/en
Anticipated expiration legal-status Critical
Ceased 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
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G7/00—Selection of materials for use in image-receiving members, i.e. for reversal by physical contact; Manufacture thereof
    • G03G7/006—Substrates for image-receiving members; Image-receiving members comprising only one layer
    • G03G7/0073—Organic components thereof
    • G03G7/008—Organic components thereof being macromolecular
    • 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
    • G03G9/122—Developers with toner particles in liquid developer mixtures characterised by the colouring agents

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Liquid Developers In Electrophotography (AREA)
  • Heat Sensitive Colour Forming Recording (AREA)
  • Wet Developing In Electrophotography (AREA)

Abstract

A liquid electrostatic dyestuff is set forth consisting essentially of an inert hydrophobic solvent with dye particles dispersed in the solvent, the particles being substantially insoluble in the solvent and being soluble in a hydrophobic polymer surface at a temperatures above a softening temperature thereof, along with a charge control agent which preferentially partitions onto the dye particles. Also disclosed is a method of electrostatic printing which comprises contacting an imaged liquid electrostatic dyestuff as just set forth with the hydrophobic polymer surface of a sheet, the hydrophobic polymer surface having a softening temperature, and heating the polymeric surface to at least the aforementioned softening temperature. Very sharp color images can be produced in this manner. Reproduction of images from a computer memory in full color is a particular feature of the invention.
PCT/US1987/002813 1986-11-05 1987-10-28 High-quality color printer Ceased WO1988003669A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB08814495A GB2204419A (en) 1986-11-05 1987-10-28 High-quality color printer

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US92732886A 1986-11-05 1986-11-05
US927,328 1986-11-05

Publications (2)

Publication Number Publication Date
WO1988003669A1 true WO1988003669A1 (en) 1988-05-19
WO1988003669A2 WO1988003669A2 (en) 1988-05-19

Family

ID=

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0372764A3 (en) * 1988-12-02 1990-09-12 Minnesota Mining And Manufacturing Company Liquid electrophotographic toners
EP0443266A1 (en) * 1990-01-19 1991-08-28 Minnesota Mining And Manufacturing Company Color electrophotography for high quality half-tone images
WO1993001528A1 (en) * 1991-07-04 1993-01-21 Spectrum Sciences B.V. Security toner and process for using same

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1422991A1 (en) * 1962-03-01 1970-04-16 Agfa Gevaert Ag Electrophotographic duplication process
BE745458A (en) * 1969-02-05 1970-06-04 Staley Mfg Co A E PROCESS FOR DISPERSING IMAGES OF COLORANT IN A PARTICULAR STATE
DE2020812A1 (en) * 1970-04-28 1971-11-11 Mita Industrial Co Ltd Dye or pigment dispersion for developing latent - electrostatic images
CH568595A5 (en) * 1972-03-23 1975-10-31 Canon Kk Transfer of images - obtd by wet development of electrostatic latent images
DE2450500A1 (en) * 1974-10-24 1976-05-06 Renker Gmbh Transfer printing directly from electrophotographic material - with toner image contg sublimation dyes, for sharp multi-coloured prints

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1422991A1 (en) * 1962-03-01 1970-04-16 Agfa Gevaert Ag Electrophotographic duplication process
BE745458A (en) * 1969-02-05 1970-06-04 Staley Mfg Co A E PROCESS FOR DISPERSING IMAGES OF COLORANT IN A PARTICULAR STATE
DE2020812A1 (en) * 1970-04-28 1971-11-11 Mita Industrial Co Ltd Dye or pigment dispersion for developing latent - electrostatic images
CH568595A5 (en) * 1972-03-23 1975-10-31 Canon Kk Transfer of images - obtd by wet development of electrostatic latent images
DE2450500A1 (en) * 1974-10-24 1976-05-06 Renker Gmbh Transfer printing directly from electrophotographic material - with toner image contg sublimation dyes, for sharp multi-coloured prints

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0372764A3 (en) * 1988-12-02 1990-09-12 Minnesota Mining And Manufacturing Company Liquid electrophotographic toners
EP0443266A1 (en) * 1990-01-19 1991-08-28 Minnesota Mining And Manufacturing Company Color electrophotography for high quality half-tone images
WO1993001528A1 (en) * 1991-07-04 1993-01-21 Spectrum Sciences B.V. Security toner and process for using same

Also Published As

Publication number Publication date
DE3790582T1 (en) 1988-09-15
GB8814495D0 (en) 1988-07-27
GB2204419A (en) 1988-11-09
EP0288540A1 (en) 1988-11-02
JPH01501258A (en) 1989-04-27

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