| abstract |
A laser-welded polyester resin composition having a high tensile strength, a black color with excellent coloring power, and an excellent laser welding processability is provided. . A resin composition used for welding with laser light, wherein (A) 0.0005 to 0.5 parts by mass of nigrosine and (C) 1 specified for 100 parts by mass of a thermoplastic polyester resin. A resin composition for laser welding, comprising 0.01 to 2 parts by mass of a colorant containing at least a 1-type azomethine nickel complex. [Selection] Figure 1 |