作者: Zenji Takada , Yuko Shigeta , Hirohito Ando
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摘要: A non-bronzing reddish lake pigment obtained by treating a with an N-(3-alkoxy-2-hydroxypropyl)trialkylammonium salt represented the general formula ##STR1## wherein each of R 1 , 2 3 and 4 represents alkyl group having to 30 carbon atoms, X halogen atom, sulfonic acid radical, acetic radical or formic radical.