Process for making an object from plastic material and object made of plastic material made with such process

• Main Authors: Ghiotto, Luciano, Stefani, Walter, Stefani, Nicola
• Format: Patent
• Language: English
• Published: 04.04.2023
• Subjects: AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; COFFEE MILLS; DOMESTIC ARTICLES OR APPLIANCES; FURNITURE; HOUSEHOLD OR TABLE EQUIPMENT; HUMAN NECESSITIES; INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULARARTICLES; PERFORMING OPERATIONS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; SPICE MILLS; SUCTION CLEANERS IN GENERAL; TRANSPORTING; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

A process for making an object from plastic material includes the following operations: moulding at least one insert, injecting a first plastic material into a first moulding cast, such first cast being configured so that the at least one insert includes a base from which exposure reliefs extend, intended to be visible when the object made of plastic material is finished, between the exposure reliefs passage channels being defined for a second plastic material in a subsequent overmoulding operation; positioning the insert in a second moulding cast, so that the insert is positioned with the base pressed against a first surface of a first half-mould of the second cast, and with the exposure reliefs pressed against an opposite second surface of a second half-mould; overmoulding a second plastic material on a part of the insert, injecting the second plastic material into the second cast, so that the second plastic material injected fills the second cast passing through the passage channels defined between the exposure reliefs of the insert, covering the base and being interposed between the exposure reliefs.