EP1609616B1 - Reversible thermal recording medium - Google Patents

Reversible thermal recording medium Download PDF

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Publication number
EP1609616B1
EP1609616B1 EP03758884.5A EP03758884A EP1609616B1 EP 1609616 B1 EP1609616 B1 EP 1609616B1 EP 03758884 A EP03758884 A EP 03758884A EP 1609616 B1 EP1609616 B1 EP 1609616B1
Authority
EP
European Patent Office
Prior art keywords
reversible thermosensitive
thermosensitive recording
recording medium
layer
recording layer
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 - Lifetime
Application number
EP03758884.5A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1609616A1 (en
EP1609616A4 (en
Inventor
Kunio Hayakawa
Shinya Kawahara
Tadafumi Tatewaki
Shin Yamamoto
Hitoshi Shimbo
Kyohji Tsutsui
Hiromi Furuya
Takeshi Shibuya
Yoshihiko Hotta
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.)
Ricoh Co Ltd
Original Assignee
Ricoh 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
Priority claimed from JP2003077347A external-priority patent/JP4030057B2/ja
Application filed by Ricoh Co Ltd filed Critical Ricoh Co Ltd
Publication of EP1609616A1 publication Critical patent/EP1609616A1/en
Publication of EP1609616A4 publication Critical patent/EP1609616A4/en
Application granted granted Critical
Publication of EP1609616B1 publication Critical patent/EP1609616B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B41M5/305—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used using chemical colour formers with reversible electron-donor electron-acceptor compositions

Definitions

  • thermosensitive recording media which is a kind of those using polymer, in which physical change, i.e., transparent and white opaque is utilized (see Patent Literatures 1 and 2).
  • a reversible thermosensitive recording medium which is a kind of those using a dye, in which chemical change is newly utilized.
  • gallic acid is used in combination with phloroglucinol as a color developer (see, for example, Patent Literature 3).
  • Such compounds as phenolphthalein and thymolphtalein are used as a color developer (see, for example, Patent Literature 4).
  • the reversible thermosensitive recording medium In the image processing apparatus shown in FIG. 5 , the reversible thermosensitive recording medium, the magnetic recording layer being provided on the opposite side of the thermosensitive layer, is conveyed along the conveying root shown by back-forth arrows or conveyed in the reverse direction along the conveying root in the image processing apparatus.

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  • 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)
EP03758884.5A 2003-03-20 2003-10-24 Reversible thermal recording medium Expired - Lifetime EP1609616B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2003077347A JP4030057B2 (ja) 2002-03-22 2003-03-20 可逆性感熱記録媒体
JP2003077347 2003-03-20
PCT/JP2003/013636 WO2004082955A1 (ja) 2003-03-20 2003-10-24 可逆性感熱記録媒体

Publications (3)

Publication Number Publication Date
EP1609616A1 EP1609616A1 (en) 2005-12-28
EP1609616A4 EP1609616A4 (en) 2006-10-11
EP1609616B1 true EP1609616B1 (en) 2014-12-03

Family

ID=33027945

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03758884.5A Expired - Lifetime EP1609616B1 (en) 2003-03-20 2003-10-24 Reversible thermal recording medium

Country Status (3)

Country Link
EP (1) EP1609616B1 (ja)
CN (1) CN100528596C (ja)
WO (1) WO2004082955A1 (ja)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8846171B2 (en) * 2009-01-06 2014-09-30 Brady Worldwide, Inc. Label media having a substrate and a two-sided releasable liner
US20110181641A1 (en) * 2010-01-28 2011-07-28 Kabushiki Kaisha Toshiba Image recording apparatus
CN103205250B (zh) * 2013-03-05 2015-04-29 上海市电力公司 一种热敏可逆变色材料及其用途
EP3543031B1 (en) * 2016-11-18 2023-11-29 Sony Group Corporation Reversible recording medium and exterior member
CN109278449A (zh) * 2018-09-30 2019-01-29 胡玉英 一种废旧纸张回收利用装置

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0764117B2 (ja) 1985-04-15 1995-07-12 日本電信電話株式会社 書換形光記録方法および書換形光記録媒体
JPH07100769B2 (ja) 1985-12-11 1995-11-01 パイロツトインキ株式会社 色彩記憶性塗料
JPH078931B2 (ja) 1985-12-12 1995-02-01 パイロットインキ 株式会社 色彩記憶性樹脂組成物
JPH0659746B2 (ja) 1985-12-14 1994-08-10 パイロツトインキ株式会社 色彩記憶性印刷物
JPH0829621B2 (ja) 1987-01-14 1996-03-27 株式会社リコー 可逆性記録材料
JPH02188293A (ja) 1989-01-18 1990-07-24 Toppan Printing Co Ltd 可逆性感熱記録媒体
JPH02188294A (ja) 1989-01-18 1990-07-24 Toppan Printing Co Ltd 可逆性感熱記録媒体
JP2981558B2 (ja) 1990-12-26 1999-11-22 株式会社リコー 可逆的熱発色性組成物、それを用いた記録媒体および記録方法
JP3380277B2 (ja) 1992-06-17 2003-02-24 三菱製紙株式会社 可逆性感熱記録材料
JP3557076B2 (ja) 1996-06-06 2004-08-25 株式会社リコー 可逆性感熱発色組成物およびそれを用いた可逆性感熱記録媒体
JP3966585B2 (ja) 1996-08-07 2007-08-29 株式会社リコー 可逆性感熱記録媒体
JPH10315623A (ja) * 1997-05-20 1998-12-02 Ricoh Co Ltd 可逆性感熱記録媒体
JPH10315625A (ja) * 1997-05-21 1998-12-02 Ricoh Co Ltd 可逆性感熱記録媒体
JPH10315627A (ja) * 1997-05-21 1998-12-02 Ricoh Co Ltd 可逆性感熱記録媒体
JPH10315626A (ja) * 1997-05-21 1998-12-02 Ricoh Co Ltd 可逆性感熱記録媒体
US6261992B1 (en) 1998-09-29 2001-07-17 Ricoh Company, Ltd. Reversible thermosensitive recording material and recording method and apparatus therefor
JP2001113829A (ja) * 1999-10-18 2001-04-24 Mitsubishi Paper Mills Ltd 可逆性感熱記録材料

Also Published As

Publication number Publication date
WO2004082955A1 (ja) 2004-09-30
EP1609616A1 (en) 2005-12-28
EP1609616A4 (en) 2006-10-11
CN100528596C (zh) 2009-08-19
CN1771135A (zh) 2006-05-10

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