| 摘要 |
A laser-transmissible colored resin composition comprises an anthraquinone-type acidic dye represented by the following chemical formula (1) <CHEM> Äin the chemical formula (1), -R<1> is a hydrogen atom, a hydroxyl group or an amino group, -R<2> and -R<3> are a hydrogen atom, an alkyl group, a halogen atom, an alkoxyl group or -SO3M which M is a hydrogen atom, an alkaline metal or an ammonium, -R<4>, -R5, -R<6>, -R<7>- and -R<8> are a hydrogen atom, an alkyl group, an acyl group, an acylamide group, an acyl-N-alkylamide group, a halogen atom, an alkoxyl group or -SO3M which M is same above, and at least one of -R<2>, -R<3>, -R<4>, -R<5>, -R<6>, -R<7> and -R<8> is -SO3MÜ. It may be represented by the following chemical formula (2). <CHEM> <IMAGE> |
