Optical data carrier comprising a cyanine dye as light-absorbent compound in the information layer
申请人:Bayer Aktiengesellschaft
公开号:US06835725B2
公开(公告)日:2004-12-28
Optical data carrier comprising a preferably transparent substrate which may, if desired, have previously been coated with one or more reflection layers and to whose surface a light-writeable information layer, if desired one or more reflection layers and if desired a protective layer or a further substrate or a covering layer have been applied, which can be written on or read by means of blue, red or infrared light, preferably laser light, where the information layer comprises a light-absorbent compound and, if desired, a binder, characterized in that at least one cyanine dye is used as light-absorbent compound.
包括一种优选为透明基板的光学数据载体,该基板可以(如果需要的话)事先涂覆有一个或多个反射层,并且在其表面涂覆了一个光可写信息层(如果需要,还可以涂覆一个或多个反射层以及一个保护层、另一个基板或覆盖层),该信息层可以通过蓝光、红光或红外光(优选为激光光)进行写入或读取,其中信息层包括一个吸光性化合物和(如果需要的话)一个粘合剂,其特征在于至少使用一种青菁染料作为吸光性化合物。