THERMAL RECORDING MEDIUM - JUJO PAPER CO LTD

Title:

THERMAL RECORDING MEDIUM

Document Type and Number:

WIPO Patent Application WO/2005/007419

Kind Code:

A1

Abstract:

A thermal recording medium produced by forming on a substrate an undercoat containing a pigment and a binder as the main components and a thermal recording layer containing as the main components a colorless or pale-colored basic dye and a developer capable of reacting with the dye to form a color, which is improved in image quality by incorporating a water-retaining agent into the undercoat and using as the pigment one exhibiting an oil absorption of 80 to 120 cc/100g (as determined by the method according to JIS K 5101) and by adjusting the coating fluid for the undercoat to a solid concentration of 25 to 45 % and a dynamic water retention (the amount of AA dewatering) of 350 g/m² or below.

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Inventors:

SIMOYAMA MIZUHO (JP)
HAMADA KAORU (JP)
YONESIGE SEIKI (JP)
HIRAI KENJI (JP)

Application Number:

PCT/JP2004/010529

Publication Date:

January 27, 2005

Filing Date:

July 16, 2004

Export Citation:

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Assignee:

JUJO PAPER CO LTD (JP)
SIMOYAMA MIZUHO (JP)
HAMADA KAORU (JP)
YONESIGE SEIKI (JP)
HIRAI KENJI (JP)

International Classes:

B41M5/337; B41M5/42; (IPC1-7): B41M5/28; B41M5/30; B41M5/34

Foreign References:

JPH04364984A	1992-12-17
JPH0292581A	1990-04-03
JPH04314587A	1992-11-05
JPH02310083A	1990-12-25
JPH03247488A	1991-11-05
JPH1143899A	1999-02-16
JPS5853484A	1983-03-30
JPH0939411A	1997-02-10
JPH09267555A	1997-10-14
JP2001030631A	2001-02-06
JP2000108518A	2000-04-18
JPH03207688A	1991-09-10
JPH0524366A	1993-02-02

Other References: