PROCESS OF COLORING OR TREATING THE SURFACE OF POLYMER PARTS

    公开(公告)号:EP4241991A1

    公开(公告)日:2023-09-13

    申请号:EP23161250.8

    申请日:2023-03-10

    摘要: Provided is a method of dyeing or otherwise surface treating a polymer part so as to provide a treated polymer part with a surface additive which has wash fastness with respect to alcohol solutions and therefore does not leach or transfer in response to contact with alcohol. The method includes preparing a surface treatment solution comprising a solvent and the surface additive; submerging a polymer part in the surface treatment solution for a set time period before in order to coat the surface of the part with the additive; air drying the part; vapor polishing the part by exposing an outer surface to vaporized hexafluoroisopropanol in order to bind the additive within the polymer; and finally washing the fixed coated part in a surfactant and water solution to produce a finished surface treated polymer part.