Abstract: The present invention relates to an installation for manufacturing a receptacle from a preform of thermoplastic material, the receptacle being suitable for being subsequently subjected, without significant deformation, to relatively severe temperature conditions encountered during hot-filling or pasteurization processes. The installation includes means for manufacturing a receptacle blank having a hot-shrunk body from the preform, and molding means for forming a final receptacle from the blank. The means for manufacturing a receptacle blank are adapted to form a blank whose shrunk body is longer than the body of the final receptacle to be obtained. The molding means are described in detail.

Abstract: The invention relates to manufacturing a receptacle (23) suitable for being subsequently subjected to severe temperature conditions without deforming significantly, in which an intermediate receptacle (2) is molded by blowing or by stretching-blowing a preform (1) whose body is heated to at least the softening temperature of the thermoplastic material, which intermediate receptacle possesses dimensions greater than those of the final receptacle (23) and from which a blank is produced having a hot-shrunk body of predetermined length greater than that of the body of the final receptacle (23) and from which the body of the final receptacle is molded or blow-molded with the exception of its bottom zone, the length of the receptacle having an unmolded bottom zone being substantially the same as the length of the final receptacle (23), and finally the body and its bottom zone are blow-molded to take up their final shapes and dimensions in order to obtain the final receptacle (23).