SWIRL.

摘要

A swirl nozzle having a plurality of inlet channels (2) and an outlet channel (3) extending transversely thereto, a use of the swirl nozzle and methods of producing the swirl nozzle are proposed. A simple, compact construction and easy manufacture are made possible by the fact that the inlet channels open directly and/or tangentially into the outlet channel. Alternatively or additionally, upstream of the inlet channels is provided a filter structure having smaller flow cross-sections than the inlet channels. The swirl nozzle is used in particular for atomising a liquid medicament formulation. The swirl nozzle is produced from two plate-shaped components, the outlet channel first being etched as a blind bore in one component and then opened up by grinding the component away. Alternatively or additionally, the outlet channel is formed in a different component from the inlet channels. A swirl nozzle having a plurality of inlet channels (2) and an outlet channel (3) extending transversely thereto, a use of the swirl nozzle and methods of producing the swirl nozzle are proposed. A simple, compact construction and easy manufacture are made possible by the fact that the inlet channels open directly and/or tangentially into the outlet channel. Alternatively or additionally, upstream of the inlet channels is provided a filter structure having smaller flow cross-sections than the inlet channels. The swirl nozzle is used in particular for atomising a liquid medicament formulation. The swirl nozzle is produced from two plate-shaped components, the outlet channel first being etched as a blind bore in one component and then opened up by grinding the component away. Alternatively or additionally, the outlet channel is formed in a different component from the inlet channels. The invention relates to platelet-shaped pearlescent pigments which are coated with at least one mixed inorganic/organic layer for improving their application properties, and in this case, particularly, their mechanical properties, and to a method for the production and use thereof. Said mixed inorganic/organic layer comprises at least one partially cross-linked inorganic metal oxide component and an organic component, which is at least one organic oligomer and/or polymer which is covalently bonded, at least in part, to the inorganic network via crosslinkers. The coating is provided with at least one mixed inorganic/organic layer which contains, at least in part, an inorganic network encompassing one or several inorganic oxide components, and at least one organic component which at least partly represents an organic oligomer and/or polymer that is covalently bonded at least in part to the inorganic network via one or several organic network formers. The invention also relates to a method for producing said type of pearlescent pigments.