| abstract |
Laser ray transmitting colored thermoplastic resin composition containing antriphenylmethane salt forming dye consisting of an anionic component from antriphenylmethane acid dye and an organic ammonium component, said acid dyenbeing represented by Formula (1) below,n nR 1 : hydrogen atom or alkyl group, R 2 : hydrogen atom, alkyl group, hydroxyl group,ncarboxyl group, or sulfonic acid group, R 3 : hydrogen atom, sulfonic acid group, arylngroup not having or having substituent, or group represented by Formula (D) below,n nR 12 , R 13 : hydrogen atom, alkyl group not having or having substituent, aryl group notnhaving or having substituent, or aralkyl group not having or having substituent, A 1 , A 2 :nhydrogen atom or alkyl group not having or having substituent, B 1 , B 2 : aryl group notnhaving or having substituent or aralkyl group not having or having substituent, one, two ornmore of R 2 , R 3 , B 1 and B 2 are sulfonic acid groups or have a sulfonic acid group. n Method of laser welding wherein a contact portion of a laser ray transmittingnmaterial comprising the laser ray transmitting colored thermoplastic resin composition nabove and a laser ray absorbing material is welded by irradiating laser ray so that the lasernray passes through the laser ray transmitting material and is absorbed in the laser raynabsorbing material with the laser ray transmitting material and the laser ray absorbingnmaterial in contact with each other. |