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1. (WO2018020391) CAPSULE FOR THE PREPARATION OF BEVERAGES, HAVING AN EASILY PERFORABLE BOTTOM

Pub. No.:    WO/2018/020391    International Application No.:    PCT/IB2017/054465
Publication Date: Fri Feb 02 00:59:59 CET 2018 International Filing Date: Tue Jul 25 01:59:59 CEST 2017
IPC: B65D 85/804
Applicants: BISIO PROGETTI S.P.A.
Inventors: BISIO, Luigi
Title: CAPSULE FOR THE PREPARATION OF BEVERAGES, HAVING AN EASILY PERFORABLE BOTTOM
Abstract:
A capsule (1) for the preparation of infused or instant beverages through an extraction machine comprises a cup (2) closed on one side by a lid (6) and on the opposite side by a base (3) intended to be perforated by opening means of the extraction machine for the injection of a fluid under pressure. The base (3) is made of multilayer plastic material having an outer layer (51), an inner layer (53) and an intermediate layer (52) suitable to create a gas-tight seal. The capsule is characterised in that the base (3) comprises at least one weakened portion (33) in the form of a groove (71, 73) that extends into the outer layer (51) and/or into the inner layer (53) without reaching the intermediate layer (52) in such a way as to obtain a weakening in the base (3) without compromising the gas-tight seal.