Method and system for producing a decorative object

A method for manufacturing a decorative object from at least a first layer of a hot-extruded strand of a polymer-based composition, including a step of passing a polymer-based composition through an extrusion die from an inlet supplying said composition to an extrusion head from which the extruded strand emerges in an ambient environment, the first layer of extruded strand being deposited on a reception support, the method comprising steps of:

• heating the polymer-based composition so that the temperature of the extruded strand, at the outlet of the extrusion head, is between 200° C. and 300° C.,
• cooling the reception support so as to force the cooling of the first layer of extruded strand by conduction, and
• a step of using the polymer-based composition comprising recycled polyethylene terephthalate or a mixture of recycled polyethylene terephthalate and non-recycled polyethylene terephthalate, wherein the cooling temperature of the reception support is below the temperature of the ambient environment, and wherein the reception support is cooled to a temperature of between −10° C. and +10° C.