GB1399958A - Heat-sensitive copy-sheet - Google Patents

Heat-sensitive copy-sheet

Info

Publication number
GB1399958A
GB1399958A GB5759873A GB5759873A GB1399958A GB 1399958 A GB1399958 A GB 1399958A GB 5759873 A GB5759873 A GB 5759873A GB 5759873 A GB5759873 A GB 5759873A GB 1399958 A GB1399958 A GB 1399958A
Authority
GB
United Kingdom
Prior art keywords
reducing agent
layer
heat
coloured
bleach
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
GB5759873A
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.)
3M Co
Original Assignee
Minnesota Mining and Manufacturing Co
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 Minnesota Mining and Manufacturing Co filed Critical Minnesota Mining and Manufacturing Co
Publication of GB1399958A publication Critical patent/GB1399958A/en
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41MPRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M5/00Duplicating or marking methods; Sheet materials for use therein
    • B41M5/26Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used
    • B41M5/28Thermography ; 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
    • B41M5/286Thermography ; 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 compounds undergoing unimolecular fragmentation to obtain colour shift, e.g. bleachable dyes
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S430/00Radiation imagery chemistry: process, composition, or product thereof
    • Y10S430/165Thermal imaging composition

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Heat Sensitive Colour Forming Recording (AREA)
  • Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)

Abstract

1399958 Heat-sensitive bleach-out materials MINNESOTA MINING & MFG CO 12 Dec 1973 [13 Dec 1972] 57598/73 Heading G2C A heat-sensitive bleach-out material comprises a support coated with a layer of, or a self-supporting layer of a binder and a coloured p-quinone-imine which on heating in the presence of a reducing agent is bleached-out. Generally the reducing agent is in a separate layer containing a binder adjacent to the coloured layer but it may be in the same layer (less stable) or on a separate sheet. Specified p-quinone imines are of Formula:- wherein Ar is an aryl radical and R, R<SP>1</SP>, R<SP>1</SP><SP>1</SP> and R<SP>111</SP> are H, halogen, alkyl, alkoxy or amide and wherein adjacent R radicals may complete a fused carbo- or hetrocyclic ring. The reducing agent may be a hydroquinone or a mono-, di-, or trihydroxy benzene or stannous chloride. The material is imagewise exposed to heat to produce a bleach-out image; if the reducing agent is in a separate sheet it is contacted with the coloured material before exposure. Silica may be added to the reducing agent layer.
GB5759873A 1972-12-13 1973-12-12 Heat-sensitive copy-sheet Expired GB1399958A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00314687A US3852093A (en) 1972-12-13 1972-12-13 Heat-sensitive copy-sheet

Publications (1)

Publication Number Publication Date
GB1399958A true GB1399958A (en) 1975-07-02

Family

ID=23221008

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5759873A Expired GB1399958A (en) 1972-12-13 1973-12-12 Heat-sensitive copy-sheet

Country Status (7)

Country Link
US (1) US3852093A (en)
JP (1) JPS4991239A (en)
CA (1) CA981453A (en)
DE (1) DE2362377B2 (en)
FR (1) FR2330260A5 (en)
GB (1) GB1399958A (en)
IT (1) IT1000446B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2209036A (en) * 1987-08-25 1989-04-26 Fuji Photo Film Co Ltd Heat-sensitive transfer material containing cyan dye
US5935758A (en) 1995-04-20 1999-08-10 Imation Corp. Laser induced film transfer system
US5945249A (en) 1995-04-20 1999-08-31 Imation Corp. Laser absorbable photobleachable compositions

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4187108A (en) * 1977-02-07 1980-02-05 Eastman Kodak Company Heat developable material and process
CA1085666A (en) * 1977-02-07 1980-09-16 Eastman Kodak Company Photographic material having a heat developable layer and a layer containing an azoaniline dye
JPS5541277A (en) * 1978-09-20 1980-03-24 Mitsubishi Paper Mills Ltd Sensible heat paper that conservative property of surface is improved
GB8307023D0 (en) * 1983-03-15 1983-04-20 Minnesota Mining & Mfg Dye bleach system
DE3524519A1 (en) * 1984-07-11 1986-01-16 Mitsubishi Chemical Industries Ltd., Tokio/Tokyo Dyes for heat-sensitive sublimation transfer recording
US5156709A (en) * 1991-07-30 1992-10-20 Xerox Corporation Fusible white stripe transparency sheets
JPH0551548A (en) * 1991-08-28 1993-03-02 Brother Ind Ltd Ink for ink jet printer
US5314795A (en) * 1992-12-21 1994-05-24 Minnesota Mining And Manufacturing Company Thermal-dye-bleach construction comprising a polymethine dye and a thermal carbanion-generating agent
US5324627A (en) * 1992-12-21 1994-06-28 Minnesota Mining And Manufacturing Company Tetra-alkylammonium phenylsulfonylacetate thermal-dye-bleach agents
US5395747A (en) * 1993-12-20 1995-03-07 Minnesota Mining & Manufacturing Company Stabilized thermal-dye-bleach constructions
US6294308B1 (en) 1999-10-15 2001-09-25 E. I. Du Pont De Nemours And Company Thermal imaging process and products using image rigidification
US9708463B2 (en) * 2015-01-14 2017-07-18 International Business Machines Corporation Recyclate verification

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3715213A (en) * 1969-02-19 1973-02-06 Mita Industrial Co Ltd Diazo-type multicolor reproduction
LU59063A1 (en) * 1969-07-08 1971-03-09
US3609360A (en) * 1969-09-15 1971-09-28 Joseph A Wiese Jr Negative projection transparencies and method
US3684552A (en) * 1970-11-16 1972-08-15 Minnesota Mining & Mfg Heat-sensitive sheet material
US3682684A (en) * 1971-03-10 1972-08-08 Minnesota Mining & Mfg Wide latitude heat-sensitive copy-sheet and method of making
US3751249A (en) * 1971-03-15 1973-08-07 Eastman Kodak Co Photothermic silver halide element containing a bis-beta-naphthol reducing agent and a 1, 3-dihydroxy-benzene reducing agent
US3764333A (en) * 1972-05-15 1973-10-09 Nashua Corp Thermographic copy sheet containing 2-phenyl 1,3-indanedione

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2209036A (en) * 1987-08-25 1989-04-26 Fuji Photo Film Co Ltd Heat-sensitive transfer material containing cyan dye
US4873220A (en) * 1987-08-25 1989-10-10 Fuji Photo Film Co., Ltd. Heat-sensitive transfer material
GB2209036B (en) * 1987-08-25 1991-07-31 Fuji Photo Film Co Ltd Heat-sensitive transfer material containing cyan dye
US5935758A (en) 1995-04-20 1999-08-10 Imation Corp. Laser induced film transfer system
US5945249A (en) 1995-04-20 1999-08-31 Imation Corp. Laser absorbable photobleachable compositions
US6171766B1 (en) 1995-04-20 2001-01-09 Imation Corp. Laser absorbable photobleachable compositions
US6291143B1 (en) 1995-04-20 2001-09-18 Imation Corp. Laser absorbable photobleachable compositions

Also Published As

Publication number Publication date
CA981453A (en) 1976-01-13
FR2330260A5 (en) 1977-05-27
IT1000446B (en) 1976-03-30
DE2362377A1 (en) 1974-07-04
JPS4991239A (en) 1974-08-31
DE2362377B2 (en) 1975-12-11
US3852093A (en) 1974-12-03

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee