| 摘要 |
<p>The neck (22) has a central coupling skirt (42) coupling a cosmetic product container on another cosmetic product container. A tubular coupling sleeve (54) delimits a coupling surface i.e. inner surface (59), extending around an axis (A-A') of the sleeve. Grooves (60) are arranged on the coupling surface, and extend parallel to the axis. The coupling skirt includes an inner thread (58) for screwing an end of the former container on the sleeve. The thread projects from the coupling surface of the sleeve, and is in helical shape before screwing the former container on the latter container. Independent claims are also included for the following: (1) a method for manufacturing a neck (2) a device for preparation of a cosmetic composition (3) a method for preparation of cosmetic composition.</p> |
