BÖNNIGHEIM (ri) Microcapsules play a vital role in drug delivery systems designed to transfer substances from textiles on to and into the skin.
If textiles equipped in this way are to be of practical use in medicine and cosmetics, the key criteria are the continuity and controllability of the substance release.
This is why scientists from the Institute of Hygiene and Biotechnology (IHB) at the international Textile Research Centre of the Hohenstein Institutes in Bönnigheim have carried out a research project (AiF No. 14708N_1) in which they investigated various microcapsule depot structures with regard to their mechanical strength, their capacity to release substances and their resistance to washing.
The Hohenstein specialists evaluated not only the properties of various casing materials but also current methods of applying microcapsules to textile bases such as cotton and polyester.
In order to be able to judge how effectively the substances were released and transferred to the skin, the team led by Dr. Dirk Höfer established a new kind of test method and then evaluated the results, including the effect of different climatic conditions, using specific verification methods.
The resistance of the microcapsule devices to washing was also studied after washing once and more than once in accordance with the EN ISO 6330 standard.
The parameters that were studied were fed into an evaluation matrix to assess the effectiveness of the different microcapsule systems and methods of application.
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