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Capillary Action

Capillary action is a familiar natural phenomenon seen, for example, in the absorbing of water and nutrients by the root of plants, in which liquid permeates spaces between fibers irrespective of gravity or direction.

Specifically, when a narrow tube is placed in a liquid, the relationship of the adhesive force and surface tension of the liquid to the inner surface of the tube can cause the liquid surface within the tube to rise or fall.

This effect is called capillary action.

The height of the liquid surface is expressed as Z in the equation below.

Interfacial Control Technology

Wettability and surface tension can be used to control capillary action. By combining these with other Teibow technologies, we conduct product R&D leading to new applications.

Interfacial control technology