EP0788889A3 - A thermal sensitive recording sheet - Google Patents

A thermal sensitive recording sheet Download PDF

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Publication number
EP0788889A3
EP0788889A3 EP97300278A EP97300278A EP0788889A3 EP 0788889 A3 EP0788889 A3 EP 0788889A3 EP 97300278 A EP97300278 A EP 97300278A EP 97300278 A EP97300278 A EP 97300278A EP 0788889 A3 EP0788889 A3 EP 0788889A3
Authority
EP
European Patent Office
Prior art keywords
formula
recording sheet
sensitive recording
colour developer
nitro
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
EP97300278A
Other languages
German (de)
French (fr)
Other versions
EP0788889A2 (en
EP0788889B1 (en
Inventor
Toshiaki Nippon Paper Ind. Co. Ltd. Minami
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
Jujo Paper 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
Application filed by Nippon Paper Industries Co Ltd, Jujo Paper Co Ltd filed Critical Nippon Paper Industries Co Ltd
Publication of EP0788889A2 publication Critical patent/EP0788889A2/en
Publication of EP0788889A3 publication Critical patent/EP0788889A3/en
Application granted granted Critical
Publication of EP0788889B1 publication Critical patent/EP0788889B1/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
    • B41M5/30—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used using chemical colour formers
    • B41M5/337—Additives; Binders
    • B41M5/3375—Non-macromolecular compounds
    • 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
    • B41M5/30—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used using chemical colour formers
    • B41M5/333—Colour developing components therefor, e.g. acidic compounds
    • B41M5/3333—Non-macromolecular compounds

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Heat Sensitive Colour Forming Recording (AREA)

Abstract

A thermally sensitive recording sheet which comprises on a substrate, a thermally sensitive colour developing layer comprising:
  • (a) a colourless or pale coloured basic leuco dye;
  • (b) an organic colour developer of formula (I):
    Figure 80000001
    wherein A is hydrogen, C1-C4 alkyl, C1-C4 alkoxy, hydroxy or nitro, each of R1, R2 and R3, which may be the same or different, is hydrogen, C1-C4 alkyl, C1-C4 alkoxy, hydroxy or nitro, or R1 and R2 form, together with the carbon atoms to which they are attached, an aromatic ring, and Y is sulfur or oxygen;
    or an organic colour developer of formula (II):
    Figure 80000002
    wherein each of R1, R2, R3 and Y represent the same groups as above; and B represents the same groups as A; and
  • (c) 0.01-2 parts, based on 1 part of colour developer of formula (I) or (II), of a stabiliser which is a diphenylsulfone derivative of formula (III):
    Figure 80000003
    •
    EP19970300278 1996-02-06 1997-01-17 A thermal sensitive recording sheet Expired - Lifetime EP0788889B1 (en)

    Applications Claiming Priority (3)

    Application Number Priority Date Filing Date Title
    JP02031296A JP3160885B2 (en) 1996-02-06 1996-02-06 Thermal recording sheet
    JP20312/96 1996-02-06
    JP2031296 1996-02-06

    Publications (3)

    Publication Number Publication Date
    EP0788889A2 EP0788889A2 (en) 1997-08-13
    EP0788889A3 true EP0788889A3 (en) 1998-04-08
    EP0788889B1 EP0788889B1 (en) 2001-08-08

    Family

    ID=12023628

    Family Applications (1)

    Application Number Title Priority Date Filing Date
    EP19970300278 Expired - Lifetime EP0788889B1 (en) 1996-02-06 1997-01-17 A thermal sensitive recording sheet

    Country Status (3)

    Country Link
    EP (1) EP0788889B1 (en)
    JP (1) JP3160885B2 (en)
    DE (1) DE69705973T2 (en)

    Families Citing this family (1)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    US8871994B2 (en) 2010-12-10 2014-10-28 Kimberly-Clark Worldwide, Inc. Wetness sensor for use in an absorbent article

    Citations (7)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    US4507670A (en) * 1983-01-25 1985-03-26 Ricoh Company, Ltd. Thermosensitive recording material
    JPH04179579A (en) * 1990-11-15 1992-06-26 Nippon Soda Co Ltd Heat-sensitive recording material
    US5215570A (en) * 1988-10-20 1993-06-01 Ciba-Geigy Corporation Sulfamoylphenylureas
    JPH05254247A (en) * 1992-03-11 1993-10-05 Nippon Paper Ind Co Ltd Thermal recording sheet
    JPH06336082A (en) * 1993-05-27 1994-12-06 New Oji Paper Co Ltd Thermal recording material
    JPH0747772A (en) * 1993-08-05 1995-02-21 New Oji Paper Co Ltd Thermal recording medium
    EP0699662A1 (en) * 1994-08-31 1996-03-06 Nippon Paper Industries Co., Ltd. Novel urea (thiourea) derivative and thermal recording sheet using same

    Patent Citations (7)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    US4507670A (en) * 1983-01-25 1985-03-26 Ricoh Company, Ltd. Thermosensitive recording material
    US5215570A (en) * 1988-10-20 1993-06-01 Ciba-Geigy Corporation Sulfamoylphenylureas
    JPH04179579A (en) * 1990-11-15 1992-06-26 Nippon Soda Co Ltd Heat-sensitive recording material
    JPH05254247A (en) * 1992-03-11 1993-10-05 Nippon Paper Ind Co Ltd Thermal recording sheet
    JPH06336082A (en) * 1993-05-27 1994-12-06 New Oji Paper Co Ltd Thermal recording material
    JPH0747772A (en) * 1993-08-05 1995-02-21 New Oji Paper Co Ltd Thermal recording medium
    EP0699662A1 (en) * 1994-08-31 1996-03-06 Nippon Paper Industries Co., Ltd. Novel urea (thiourea) derivative and thermal recording sheet using same

    Non-Patent Citations (4)

    * Cited by examiner, † Cited by third party
    Title
    CHEMICAL ABSTRACTS, vol. 123, no. 10, 4 September 1995, Columbus, Ohio, US; abstract no. 127697, SHIMIZU, YOSHIHIRO ET AL: "Thermal recording material providing durable image" XP002050927 *
    DATABASE WPI Section Ch Week 9508, Derwent World Patents Index; Class E24, AN 95-057219, XP002050928 *
    PATENT ABSTRACTS OF JAPAN vol. 016, no. 487 (M - 1323) 9 October 1992 (1992-10-09) *
    PATENT ABSTRACTS OF JAPAN vol. 018, no. 013 (M - 1539) 11 January 1994 (1994-01-11) *

    Also Published As

    Publication number Publication date
    EP0788889A2 (en) 1997-08-13
    JPH09207450A (en) 1997-08-12
    DE69705973T2 (en) 2001-11-22
    DE69705973D1 (en) 2001-09-13
    JP3160885B2 (en) 2001-04-25
    EP0788889B1 (en) 2001-08-08

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