PROCESS FOR THE SURFACE TREATMENT OF PLASTIC OBJECTS

• Main Authors: KRAMER, PHILIPP, EWALD, FELIX
• Format: Patent
• Language: English; Polish
• Published: 14.02.2022
• Subjects: AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; CHEMISTRY; COMPOSITIONS BASED THEREON; DYEING LEATHER, FURS, OR SOLID MACROMOLECULAR SUBSTANCES INANY FORM; DYEING OR PRINTING TEXTILES; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR; GENERAL PROCESSES OF COMPOUNDING; LAUNDERING; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; PERFORMING OPERATIONS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; TEXTILES; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRANSPORTING; TREATMENT OF TEXTILES OR THE LIKE; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL; WORKING-UP

The invention relates to a method for treating surfaces of plastic objects, wherein in a dying step - a mixture of dyes is produced, wherein a dye (e.g. a metal complex dye) is dissolved in a solvent, wherein between 0.05 g and 50 g of the dye is added to each liter of solvent - the dye mixture is heated to a dying temperature of between 60 °C and 180 °C and - the plastic objects are placed in the heated dye mixture for a period of between 5 minutes and 6 hours for dying. The invention further relates to a plastic object, in particular a polyamide-molded part, wherein the surface of the plastic object is treated with the method according to the invention. The plastic objects are preferably manufactured by a 3D-printing method.