Title:
感熱記録体
Document Type and Number:
Japanese Patent JP7470753
Kind Code:
B2
Abstract:
A thermosensitive recording medium comprising an undercoat layer provided on a substrate, and a thermosensitive recording layer containing a colorless or pale colored electron donating leuco dye and an electron accepting color developing agent provided on the undercoat layer, wherein the thermosensitive recording layer contains as the electron accepting color developing agent a urea compound represented by the following general formula (Formula 1)[Formula 1](wherein X represents -O- or -NH-, R1 represents a hydrogen atom or -SO2-R3, R3 represents a substituted or unsubstituted alkyl group, aralkyl group or aryl group, R2 represents a hydrogen atom or an alkyl group, m represents an integer of 0 to 2, and n represents 0 or 1), and wherein the undercoat layer contains 50 to 95 weight % of a pigment by solid and 50 weight % or more of plastic hollow particles by solid with respect to the pigment.
Inventors:
Kenji Hirai
Masaya Tosaka
Yuki Inamura
Yoshimi Midorikawa
Masaya Tosaka
Yuki Inamura
Yoshimi Midorikawa
Application Number:
JP2022148968A
Publication Date:
April 18, 2024
Filing Date:
September 20, 2022
Export Citation:
Assignee:
NIPPON PAPER INDUSTRIES CO.,LTD.
International Classes:
B41M5/333; B41M5/42; B41M5/44
Domestic Patent References:
| JP2020066148A | ||||
| JP2016165835A | ||||
| JP2020082406A | ||||
| JP2019043005A | ||||
| JP2012224001A | ||||
| JP2010228367A | ||||
| JP2001162948A | ||||
| JP4153080A |
Foreign References:
| WO2019044462A1 | ||||
| KR101917828B1 |
Other References:
日本化薬株式会社,感熱記録材料,発明推進協会公開技報 公技番号2019-502146,日本,一般社団法人発明推進協会,2019年12月26日
Attorney, Agent or Firm:
Kenichiro Akao