Title:
THERMOSENSITIVE RECORDING MATERIAL, AND HOLLOW RESIN PARTICLE FOR THERMOSENSITIVE RECORDING MATERIAL USED THEREIN
Document Type and Number:
WIPO Patent Application WO/2020/045498
Kind Code:
A1
Abstract:
Provided is a thermosensitive recording material formed by successively stacking on a supporting body an intermediate layer including hollow resin particles having one, or two or more hollow portions, and a thermosensitive color forming layer having a leuco dye and a developing agent as main components, wherein: the hollow resin particles contain, as repeated units forming a resin portion, an acid group-containing polymerizable monomer unit in a proportion of 10 to 60% by mass, and a crosslinkable monomer unit in a proportion of 5 to 65% by mass; and in the hollow resin particles, the numerical proportion of particles having a void ratio of 70 to 90%, a numerical average particle size of 0.8 to 3.5 μm, and a particle size at least equal to 10 μm is less than 1.0%, and the amount thereof loaded in the intermediate layer is 0.7 to 15 g/m².
Inventors:
IGA TAKASHI (JP)
HIRATA TAKESHI (JP)
YABUKI NOZOMI (JP)
HIRATA TAKESHI (JP)
YABUKI NOZOMI (JP)
Application Number:
PCT/JP2019/033705
Publication Date:
March 05, 2020
Filing Date:
August 28, 2019
Export Citation:
Assignee:
ZEON CORP (JP)
International Classes:
B41M5/42; B41M5/44; C08F6/24; C08F220/06
Domestic Patent References:
| WO2016195076A1 | 2016-12-08 | |||
| WO2019026899A1 | 2019-02-07 |
Foreign References:
| JP2009229556A | 2009-10-08 | |||
| JP2009242477A | 2009-10-22 | |||
| JP2003080846A | 2003-03-19 | |||
| JPH11277900A | 1999-10-12 | |||
| JPH07257036A | 1995-10-09 | |||
| JP6513273B1 | 2019-05-15 |
Attorney, Agent or Firm:
TOKOSHIE PATENT FIRM (JP)
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