The described invention relates to a method for laser welding two plastic components (A, B) brought into contact at least in the joining area, wherein the component (B) facing away from the laser radiation consists of a plastic matrix with a white pigmentation of at least 1.5 percent by weight, and at most 20 percent by weight, and wherein the component (A) facing the laser radiation, through which the laser beam passes in the welding process, exhibits a plastic matrix. A laser wavelength ranging from 1200 to 2200 nm is here used for welding, and the process is executed subject to the following two provisos: (1) The travel distance (l) of the laser beam through the component (A) facing the laser radiation measures at most 10 mm, regardless of whether the latter is pigmented or unpigmented, and (2) Given a white pigmentation of the component (A) facing the laser radiation expressed in percent by weight, the product of the travel distance (l) of the laser beam through the component (A) facing the laser radiation in mm and white pigmentation in percent by weight is less than 1.25, and that the travel distance (l) of the laser beam through the component (A) facing the laser radiation measures at most 1 mm. Furthermore, the present invention relates to components with a welded seam manufactured in this way.