Invention Grant
US5420281A Photographic material containing a non-sensitizing dye absorbing at 670
NM
失效
含有吸收在670NM的非致敏染料的摄影材料
- Patent Title: Photographic material containing a non-sensitizing dye absorbing at 670 NM
- Patent Title (中): 含有吸收在670NM的非致敏染料的摄影材料
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Application No.: US298665Application Date: 1994-08-31
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Publication No.: US5420281APublication Date: 1995-05-30
- Inventor: Eric Kiekens , Paul Callant , Roland Claes
- Applicant: Eric Kiekens , Paul Callant , Roland Claes
- Applicant Address: BEX Mortsel
- Assignee: AGFA-Gevaert, N.V.
- Current Assignee: AGFA-Gevaert, N.V.
- Current Assignee Address: BEX Mortsel
- Priority: EPX93200476 19930219
- Main IPC: C09B11/00
- IPC: C09B11/00 ; C09B11/26 ; G03C1/00 ; G03C1/83 ; C07D401/06 ; C07D409/14
Abstract:
A photographic material is disclosed comprising a support, at least one silver halide emulsion layer, and optionally one or more non-photosensitive hydrophylic layer(s), characterized in that at least one of said emulsion layer(s) and/or non-photosensitive layer(s) contains a triphenylmethane dye, absorbing around 670 nm, represented by general formula (ID) : ##STR1## wherein R.sup.1 and R.sup.2 each independently represents hydrogen unsubstituted or substituted alkyl, or unsubstituted or substituted aryl,R.sup.3 represents an electron-withdrawing group, and the substance contains at least two water-solubilizing groups,and X.sup.- represents an anion, or an intramolecular anionic group.The triphenylmethane dyes can serve as filter dye, acutance dye, or anti-halation dye. The claimed photographic materials are especially suited for exposure by a laser diode emitting at 670 nm.
Public/Granted literature
- US4995674A Wheel cover Public/Granted day:1991-02-26
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