EP 3103649 B1 20180103 - THERMOSENSITIVE RECORDING MEDIUM
Title (en)
THERMOSENSITIVE RECORDING MEDIUM
Title (de)
WÄRMEEMPFINDLICHES AUFZEICHNUNGSMEDIUM
Title (fr)
SUPPORT D'ENREGISTREMENT THERMOSENSIBLE
Publication
Application
Priority
- JP 2014052924 A 20140317
- JP 2015056651 W 20150306
Abstract (en)
[origin: EP3103649A1] The objective of the present invention is to provide a thermosensitive recording having an excellent heat discoloration resistance, especially an excellent heat discoloration resistance in the blank portions. Provided is a thermosensitive recording medium comprising (i) a support, (ii) an undercoat layer installed on the support comprising a pigment and a binder as main components, and (iii) a thermosensitive recording layer installed on the undercoat layer comprising a colorless or pale colored electron donating leuco dye and an electron accepting color developing agent as main components, wherein the pigment contained in the undercoat layer is a rosette type precipitated calcium carbonate comprising spindle-shaped primary particles aggregated radially to form secondary particles, and the bulk density of the rosette type precipitated calcium carbonate is 240 g/L or less.
IPC 8 full level
B41M 5/42 (2006.01)
CPC (source: EP)
B41M 5/426 (2013.01); B41M 2205/04 (2013.01); B41M 2205/38 (2013.01)
Citation (opposition)
Opponent : SCHAEFER KALK GmbH & Co. KG
- US 5364610 A 19941115 - MERRIS JR CHARLES S [US]
- EP 1910281 B1 20130703 - BASF SE [DE]
- DE 102008057270 A1 20100520 - KANZAN SPEZIALPAPIERE GMBH [DE]
- JP H05162446 A 19930629 - OJI PAPER CO
- WO 2008006474 A1 20080117 - KOEHLER AUGUST PAPIERFAB [DE], et al
- WO 2014121788 A1 20140814 - KOEHLER SE AUGUST PAPIERFABRIK [DE]
- "Normgerechte Bestimmung der Schiittdichte", POWTEC, pages 1
- "Schaefer Precarb 105", SCHAEFER KALK, August 2001 (2001-08-01), pages 1 - 2, XP055524587
- "Schaefer Precarb 105", SCHAEFER KALK, April 2012 (2012-04-01), pages 1 - 2, XP055524592
- "Socal P3", SOLVAY ADVANCED FUNTIONAL MINERALS, 2004, XP055524540
- "Albacar 5970", SPECIALTY MINERALS, YOUR TECHNOLOGY RESOURCE, 1998, XP055330006
- "Solvay Socal Le carbonate de calcium precipite", 1995, XP055268747
- "Gefaelltes Calciumcarbonat , Herstellung, Eigenschaften, Anwendungen", SOLVAY SOCAL, 14 April 2005 (2005-04-14), XP055524502
- DATASHEET SOCAL NP, 2004, XP055524524
- "Specialty Minerals- Performance Mineral Locations", 19 September 2018 (2018-09-19), pages 1 - 4, XP055524533, Retrieved from the Internet <URL:www.mineralstech.com/Pages/SMI/Plants.html>
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
EP 3103649 A1 20161214; EP 3103649 A4 20170222; EP 3103649 B1 20180103; CN 106103122 A 20161109; CN 106103122 B 20190614; JP 5823086 B1 20151125; JP WO2015141497 A1 20170406; WO 2015141497 A1 20150924
DOCDB simple family (application)
EP 15766003 A 20150306; CN 201580012775 A 20150306; JP 2015056651 W 20150306; JP 2015536711 A 20150306