发明授权
- 专利标题: Recording material
- 专利标题(中): 录音材料
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申请号: US849636申请日: 1986-04-09
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公开(公告)号: US4727056A公开(公告)日: 1988-02-23
- 发明人: Shojiro Sano , Ken Iwakura
- 申请人: Shojiro Sano , Ken Iwakura
- 申请人地址: JPX Kanagawa
- 专利权人: Fuji Photo Film Co., Ltd.
- 当前专利权人: Fuji Photo Film Co., Ltd.
- 当前专利权人地址: JPX Kanagawa
- 优先权: JPX60-75934 19850410
- 主分类号: B41M5/145
- IPC分类号: B41M5/145 ; B41M5/30 ; B41M5/323 ; B41M5/327 ; C07D495/10 ; C09B11/24 ; B41M5/16 ; B41M5/18 ; B41M5/22
摘要:
A recording material comprising at least one electron-donating colorless dye having, in a 95% acetic acid solution, a maximum absorption at a wavelength of from 400 to 550 nm in the spectral absorption range of from 400 to 700 nm, and at least one fluoran derivative represented by formula (I) ##STR1## wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4 and R.sub.5 each represents a hydrogen atom, a lower alkyl group, a lower alkenyl group, a lower alkoxy group, nitro, amino, cyano, acylamino, dialkylamino or a halogen atom.
公开/授权文献
- US5177623A Image processing apparatus and method 公开/授权日:1993-01-05
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