Patent ID: 7732512

Claim:
A laser ray transmitting colored polyolefin resin composition containing an anthraquinone salt forming dye represented by Formula (1) below and a red azo salt forming dye the anionic component of which corresponds to a red azo acid dye selected from the group consisting of the dyes as C.I. Acid Red 1, 3, 4, 5, 7, 8, 9, 10, 12, 13, 14, 17, 18, 23, 24, 26, 27, 30, 33, 34, 35, 37, 40, 41, 54, 60, 66, 70, 73, 74, 88, 97, 102, 112, 115, 135, 137, 138, 141, 144, 148, 150, 151, 176, 231, and 266, the polyolefin resin composition containing 5 to 50% by weight of talc relative to said polyolefin resin: in Formula (1), each of A and B independently represents —NH— or —O—, each of R 1 to R 3 independently represents hydrogen, an amino group, a hydroxy group or a halogen, each of R 4 to R 13 independently represents hydrogen, an alkyl group, a nitro group or a sulfonic group, Ki n+ represents an organic ammonium ion, m represents 1 or 2, and n represents 1 or 2; the sulfonic group is —SO 3 or SO 3 M, the number of —SO 3 being m, M representing hydrogen or an alkali metal, and each of M may be identical or not provided that the number of SO 3 M is 2 or more.