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1. (WO2018146434) SPRAY HEAD FOR A FLUID PRODUCT AND USE OF SUCH A HEAD

Pub. No.:    WO/2018/146434    International Application No.:    PCT/FR2018/050348
Publication Date: Fri Aug 17 01:59:59 CEST 2018 International Filing Date: Wed Feb 14 00:59:59 CET 2018
IPC: B05B 1/34
B65D 83/20
Applicants: APTAR FRANCE SAS
Inventors: BERANGER, Stéphane
Title: SPRAY HEAD FOR A FLUID PRODUCT AND USE OF SUCH A HEAD
Abstract:
The invention relates to a spray head for a fluid product, comprising: a body (1) forming a compartment (14) in which a core (16) extends; and a nozzle (2) fitted into the compartment (14) around the core (16), and forming a spray opening (O) having a chamber outlet diameter D3 with a chamber outlet cross-section S3. The core (16) and the nozzle (2) define therebetween, from upstream to downstream: multiple swirl channels (T) having a channel length L1; and a swirl chamber (C) having a chamber inlet diameter D2 and a chamber inlet cross-section S2, the dispensing opening (O) forming an outlet for the swirl chamber (C), characterised in that 30% of S2 ≤ S3 ≤ 55% of S2, and preferably S3 is equal to approximately 42% of S2.