Invention Grant
- Patent Title: Heat-sensitive recording material
- Patent Title (中): 热敏记录材料
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Application No.: US11666344Application Date: 2005-11-01
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Publication No.: US07709416B2Publication Date: 2010-05-04
- Inventor: Takeshi Iida , Takeshi Shikano
- Applicant: Takeshi Iida , Takeshi Shikano
- Applicant Address: JP Tokyo
- Assignee: OJI Paper Co., Ltd.
- Current Assignee: OJI Paper Co., Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Kubovcik & Kubovcik
- Priority: JP2004-322023 20041105; JP2005-150282 20050524
- International Application: PCT/JP2005/020120 WO 20051101
- International Announcement: WO2006/049175 WO 20060511
- Main IPC: B41M5/42
- IPC: B41M5/42

Abstract:
The present invention provides a heat-sensitive recording material that comprises a support, a heat-sensitive recording layer comprising a leuco dye and a developer, and a protective layer principally comprising a pigment and a binder. The support, the heat-sensitive recording layer, and the protective layer are provided in this order. The protective layer comprises: (1) a pigment of secondary particles with an average particle diameter of 30 to 900 nm formed by aggregation of amorphous silica primary particles with a particle diameter of 3 to 70 nm; or (2) a pigment of secondary particles with an average particle diameter of 30 to 900 nm formed by aggregation of amorphous silica primary particles with a particle diameter of 3 to 70 nm, and a binder comprising acetoacetyl modified polyvinyl alcohol with a saponification degree of 90 to 100 mol % and a polymerization degree of 1900 to 5000.
Public/Granted literature
- US20080103041A1 Heat-Sensitive Recording Material Public/Granted day:2008-05-01
Information query
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