EP0390432A3 - Color-former - Google Patents

Color-former Download PDF

Info

Publication number
EP0390432A3
EP0390432A3 EP19900303121 EP90303121A EP0390432A3 EP 0390432 A3 EP0390432 A3 EP 0390432A3 EP 19900303121 EP19900303121 EP 19900303121 EP 90303121 A EP90303121 A EP 90303121A EP 0390432 A3 EP0390432 A3 EP 0390432A3
Authority
EP
European Patent Office
Prior art keywords
former
color
electron
present
hydrophobic liquid
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.)
Granted
Application number
EP19900303121
Other languages
German (de)
French (fr)
Other versions
EP0390432B1 (en
EP0390432A2 (en
Inventor
Masahiro C/O Oiso Branch Sakamoto
Tsutomu C/O Oiso Branch Murano
Shozo C/O Oiso Branch Harada
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.)
Nippon Paper Industries Co Ltd
Original Assignee
Nippon Paper Industries Co Ltd
Jujo Paper 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=13555488&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0390432(A3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Nippon Paper Industries Co Ltd, Jujo Paper Co Ltd filed Critical Nippon Paper Industries Co Ltd
Publication of EP0390432A2 publication Critical patent/EP0390432A2/en
Publication of EP0390432A3 publication Critical patent/EP0390432A3/en
Application granted granted Critical
Publication of EP0390432B1 publication Critical patent/EP0390432B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M5/00—Duplicating or marking methods; Sheet materials for use therein
    • B41M5/26—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used
    • B41M5/28—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used using thermochromic compounds or layers containing liquid crystals, microcapsules, bleachable dyes or heat- decomposable compounds, e.g. gas- liberating
    • B41M5/287—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used using thermochromic compounds or layers containing liquid crystals, microcapsules, bleachable dyes or heat- decomposable compounds, e.g. gas- liberating using microcapsules or microspheres only
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M5/00—Duplicating or marking methods; Sheet materials for use therein
    • B41M5/124—Duplicating or marking methods; Sheet materials for use therein using pressure to make a masked colour visible, e.g. to make a coloured support visible, to create an opaque or transparent pattern, or to form colour by uniting colour-forming components
    • B41M5/165—Duplicating or marking methods; Sheet materials for use therein using pressure to make a masked colour visible, e.g. to make a coloured support visible, to create an opaque or transparent pattern, or to form colour by uniting colour-forming components characterised by the use of microcapsules; Special solvents for incorporating the ingredients

Abstract

The present invention relates to a color-former having microcapsules which comprise an electron-donating colorless dye dispersed in a hydrophobic liquid. The present invention provides a color-former using both an electron-­ donating colorless dye and a hydrophobic liquid which were unable to be used under consideration of the solubility.
EP19900303121 1989-03-27 1990-03-23 Color-former Expired - Lifetime EP0390432B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP74725/89 1989-03-27
JP1074725A JPH0741738B2 (en) 1989-03-27 1989-03-27 Coloring material

Publications (3)

Publication Number Publication Date
EP0390432A2 EP0390432A2 (en) 1990-10-03
EP0390432A3 true EP0390432A3 (en) 1991-05-22
EP0390432B1 EP0390432B1 (en) 1994-10-19

Family

ID=13555488

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19900303121 Expired - Lifetime EP0390432B1 (en) 1989-03-27 1990-03-23 Color-former

Country Status (4)

Country Link
EP (1) EP0390432B1 (en)
JP (1) JPH0741738B2 (en)
AU (1) AU630680B2 (en)
DE (1) DE69013383T2 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9113086D0 (en) * 1991-06-18 1991-08-07 Wiggins Teape Group Ltd Solvent compositions for use in pressure-sensitive copying paper
EP0573210B2 (en) * 1992-06-04 2005-11-23 Arjo Wiggins Limited Pressure-sensitive record material
GB9221621D0 (en) * 1992-10-15 1992-11-25 Wiggins Teape Group Ltd Solvents for use in pressure-sensitive record material
GB9318371D0 (en) * 1993-09-04 1993-10-20 Carrs Paper Ltd Pressure-sensitive record materials
GB9318369D0 (en) * 1993-09-04 1993-10-20 Carrs Paper Ltd Pressure-sensitive record materials
US6071852A (en) * 1994-09-05 2000-06-06 Carrs Paper Limited Pressure-sensitive record materials

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2026425A (en) * 1978-07-05 1980-02-06 Mitsubishi Paper Mills Ltd Process for coating dispersed minute droplets with a film or membrane
US4337169A (en) * 1979-05-29 1982-06-29 Mitsubishi Paper Mills, Ltd. Process for producing microcapsules
EP0227562A1 (en) * 1985-12-10 1987-07-01 Rhone-Poulenc Chimie Process for encapsulation by interfacial polyaddition
GB2184992A (en) * 1985-11-29 1987-07-08 Fuji Photo Film Co Ltd Microcapsules, their preparation and pressure-sensitive recording paper containing them
EP0278878A1 (en) * 1987-02-11 1988-08-17 Rhone-Poulenc Chimie Process for interfacial polyaddition microencapsulation

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB184992A (en) * 1921-07-29 1922-08-31 Henry Alfred Oake Improvements in or relating to advertising devices
JPS5634495A (en) * 1979-08-31 1981-04-06 Kureha Chem Ind Co Ltd Pressure sensitive copying paper
JPS5711085A (en) * 1980-06-25 1982-01-20 Nippon Petrochem Co Ltd Recording material
JPS57116686A (en) * 1981-01-13 1982-07-20 Kureha Chem Ind Co Ltd Pressure-sensitive recording paper
JPS59214691A (en) * 1983-05-21 1984-12-04 Mitsubishi Paper Mills Ltd Thermal recording paper
JPS6122985A (en) * 1984-07-12 1986-01-31 Toa Nenryo Kogyo Kk Solvent for pressure-sensitive reproduction paper
JPS61242886A (en) * 1985-04-22 1986-10-29 Fuji Photo Film Co Ltd Multicolor thermal recording material
JPS61286337A (en) * 1985-06-13 1986-12-16 Kureha Chem Ind Co Ltd 1-tolyl-2-phenylpropane
JPS62257880A (en) * 1986-05-02 1987-11-10 Kureha Chem Ind Co Ltd Dye solvent for pressure-sensitive recording paper and pressure sensitive recording paper using said solvent
JPS62257879A (en) * 1986-05-02 1987-11-10 Kureha Chem Ind Co Ltd Dye solvent for pressure-sensitive recording paper and pressure-sensitive recording paper using said solvent
JPS63118288A (en) * 1986-11-07 1988-05-23 Kawasaki Steel Corp Solvent for pressure sensitive transfer paper and production thereof
JPH07121611B2 (en) * 1986-11-20 1995-12-25 日本石油化学株式会社 Copy material
JPH07121612B2 (en) * 1986-11-20 1995-12-25 日本石油化学株式会社 Copy material
JPH0737179B2 (en) * 1986-12-30 1995-04-26 日本石油化学株式会社 Pressure-sensitive copying material
JP2559112B2 (en) * 1987-02-09 1996-12-04 東燃株式会社 Solvent for pressure-sensitive copying paper
JPS63203376A (en) * 1987-02-19 1988-08-23 Kureha Chem Ind Co Ltd Dye solvent for pressure-sensitive recording paper and pressure-sensitive recording paper using said solvent
JPH02106387A (en) * 1988-10-14 1990-04-18 Kanzaki Paper Mfg Co Ltd Pressure sensitive copying sheet
JP2675594B2 (en) * 1988-10-18 1997-11-12 三菱製紙株式会社 Emulsifier for producing microcapsule, microcapsule using the emulsifier, method for producing the same, and carbon-free pressure-sensitive copying paper using the microcapsule

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2026425A (en) * 1978-07-05 1980-02-06 Mitsubishi Paper Mills Ltd Process for coating dispersed minute droplets with a film or membrane
US4337169A (en) * 1979-05-29 1982-06-29 Mitsubishi Paper Mills, Ltd. Process for producing microcapsules
GB2184992A (en) * 1985-11-29 1987-07-08 Fuji Photo Film Co Ltd Microcapsules, their preparation and pressure-sensitive recording paper containing them
EP0227562A1 (en) * 1985-12-10 1987-07-01 Rhone-Poulenc Chimie Process for encapsulation by interfacial polyaddition
EP0278878A1 (en) * 1987-02-11 1988-08-17 Rhone-Poulenc Chimie Process for interfacial polyaddition microencapsulation

Also Published As

Publication number Publication date
EP0390432B1 (en) 1994-10-19
DE69013383T2 (en) 1995-02-23
EP0390432A2 (en) 1990-10-03
AU5210390A (en) 1990-09-27
JPH02252576A (en) 1990-10-11
JPH0741738B2 (en) 1995-05-10
AU630680B2 (en) 1992-11-05
DE69013383D1 (en) 1994-11-24

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