申请人:Eastman Kodak Company
公开号:US04145299A1
公开(公告)日:1979-03-20
An electrographic liquid developer comprising a carrier liquid and a marking particle which comprises a dye compound having the formula: ##STR1## wherein: R.sup.1 is H, COOH, CONH.sub.2, --SO.sub.2 NH.sub.2 or --SO.sub.3 M where M is Na.sup.+ or NH.sub.4 ; R.sup.2 is a lower alkoxy radical, --OCH.sub.2 CONH.sub.2, or ##STR2## where each of R.sup.6 and R.sup.7 is a lower alkyl radical; and R.sup.3 is H, a lower alkyl radical, a lower alkoxy radical or NO.sub.2.
一种电子图形液体开发剂,包括载体液体和标记颗粒,其包括具有以下公式的染料化合物:##STR1##其中:R.sup.1是H,COOH,CONH.sub.2,--SO.sub.2 NH.sub.2或--SO.sub.3 M,其中M是Na.sup.+或NH.sub.4;R.sup.2是较低的烷氧基,--OCH.sub.2 CONH.sub.2或##STR2##其中R.sup.6和R.sup.7中的每一个是较低的烷基基团;而R.sup.3是H,较低的烷基基团,较低的烷氧基或NO.sub.2。