| 摘要 |
Process for treating the substances (5), after having placed these substances in the receptacle (1), then closed this receptacle (1), the contents of said receptacle (1) are heated up to a first temperature value (T1), so as to cause the treatment sought, at the time of the cooling of the contents of the receptacle (1) toward a second predetermined temperature value (T2), such as the ambient temperature, before the temperature of the contents of the receptacle (1) reaches this second predetermined temperature value (T2), a gaseous fluid (8) developing a pressure within the receptacle (1) is allowed to escape through at least one orifice (7) of a given cross-section, contrived beforehand in the wall of said receptacle (1), this escape of gaseous fluid (8) taking place until the temperature of the substances (5) contained in this receptacle (1) reaches a third predetermined temperature value (T3), and that at this third predetermined temperature value (T3), the escape orifice (7) is fluid-tightly stopped by means of a stopping element (9), this process being characterized in that with a view to, simultaneously, controlling the deformation of the flexible wall of said receptacle (1) at the time of cooling and after the stopping operation and, guaranteeing the preservation of the substances contained in said receptacle (1), the third temperature value (T3), on the one hand, and the value of the cross-section of the escape orifice (7), on the other hand, are chosen in such a way that this escape orifice (7) can be stopped when: the temperature (Tg) of the gaseous fluid (8) contained in the receptacle (1) has reached a previously determined value relative to a nominal value considered to be the lower limit for guaranteeing the neutrality of the atmosphere contained in said receptacle (1), and the value of the pressure (Pi) of this gaseous fluid (8) within the receptacle (1) is greater than the value of the external gas pressure Pe and reflects the presence within said receptacle (1) of a volume of gaseous fluid (8) at least sufficient so that, after stopping of said escape orifice (7) and cooling of the contents of the receptacle (1) to the second temperature value (T2), said gaseous fluid (8) develops its pressure against the wall (11) of the receptacle (1) and opposes a detrimental deformation of this wall (11) under the influence of the pressure (Pe) outside the receptacle (1), this deformation being considered detrimental when at least one of the visual aspects, which are the visual aspect of the receptacle (1) and that of its contents, is altered.
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