'Brief description of embodiments of a container from a preform for comprising a portion a superheating comprising a layer of material able to be superheated selectively'

摘要

The present invention relates to a method of construction of a container (26), made of thermoplastic material, the method comprising a step (e2) of the final forming of the container (26), by blowing or drawing - blowing in the course of which at least a portion (14) of the body (18) of the preform (10) undergoes stretching more rapid than the rest of the body (18), characterized in that it comprises: - a step (e0) of the manufacture of the preform (10) during which the body (18) is carried out by means of a first thermoplastic material, each portion (14) to be stretched more rapidly, comprising a second layer (32) of a second thermoplastic material having a coefficient of absorption of radiation of greater than that of the first material; - a step (e1) by means of heating a uniform exposure of the body (18) of the preform to electromagnetic radiation heating.