| abstract |
A laser welded body which can be manufactured without complicated steps and maintains the characteristics of a resin contained in a resin member which exhibits high welding resistance even when swept by a High speed laser beam that can be manufactured with high production efficiency. This laser welded body 10 is laser welded at a portion at which a first resin member 1 and a second resin member 2 overlap and / or meet, with the first resin member 1 being a member. resin resin irradiated with a laser beam, containing a thermoplastic resin and a nigrosine sulfate and having an absorbance a1 of 0.09-0.9 and the second resin element 2 containing a thermoplastic resin having the same type as said thermoplastic resin or a different type thereof and a laser beam absorber having an absorbance a2 of 3.0 to 15. |