Kimberly-clark Worldwide, Inc.

Fraunhofer-gesellschaft Zur Foerderung Der Angewandten Forschung E.v.

Comanns, Philipp

Guerreiro, Sergio Stefano

Baumgartner, Werner

Philipp Comanns

Werner Baumgartner

Marsha R Forthofer

Sergio Stefano Guerreiro

Kristian Arntz

Florian Hischen

Frank Bernhardt

Gerda Buchberger

Kai Winands

A capillary structure for passive, directional fluid transport includes a capillary having a forward direction and a backward direction, the capillary including first and second capillary units each having a sequence of capillary components including a connective section in fluid communication with a diverging section, the diverging section having a forward side and dimensions inducing a concave meniscus in the forward direction, wherein the connective section of the second capillary unit is connected to the forward side of the diverging section of the first capillary unit to form at least one transition section, and wherein a change in the dimensions in the transition section induces in the backward direction a convex liquid meniscus or a straight liquid meniscus with an infinite radius of curvature.

Surface for directional fluid transport

Disclosed is a device for the directed capillary transport of liquids, comprising at least two capillaries (), the at least two capillaries () being designed such that the liquid can be transported in at least some regions in a passive, directed and capillary manner, characterised in that at least two of the capillaries () are interconnected in the direction of transport of the liquid via at least one capillary passage conduit (). The invention is intended for use in the separation of components from a fluidic substance and/or in oil/water separation. A production method is characterised in that at least one part of the capillary structure is generated by means of laser irradiation, by means of a moulding tool, in particular a sintering mould, by means of a milling process, in particular by means of a micro-milling process, or by means of EDM.

Device for the capillary transport of liquids

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Aachen, Germany

Philipp Comanns