| 摘要 |
Methods for the use of laser beams in the case of plastic monofilaments are proposed. For example, methods for joining extruded plastic monofilaments and monofilaments having different absorption coefficients for laser beams (LS) are at least zonally contacted along their circumferential surface and by the introduction of laser beams are melted together in the contact area. For the optical marking of extruded monofilaments or individual monofilaments of a monofilament union, at least the monofilament to be marked, accompanied by the addition of additives reacting with a color change under laser action, are extruded and treated with laser beams in the areas corresponding to the desired marking. For structural modifying monofilaments or individual monofilaments of a monofilament union, the monofilament to be structurally modified is extruded with LS-absorbing additives and subsequently treated with laser beams. |
