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7/5/2010
A new approach optimises "lotus effect" of soil-repellent textiles - Improved surface structure increases hydrophobicity and durability
Soil-repellent textiles that optimally utilise what is known as the "lotus effect" seen in nature have been developed under the auspices of a joint research project of the BMWi [Federal Ministry of Economics and Technology] carried out by the Hohenstein Institute in Boennigheim and ITCF Denkendorf (AiF-No. 15142 N/1). By means of new fibre structuring, the soil-repellent effect has for the first time been realised through fibre immanent surface structuring. Particles that have been incorporated during manufacturing have shown only negligible effects on the behaviour of dyes and the dye absorbency of the polymer.
Press release:
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HOH_Oberflaechenstruktur_Schmutzabweisung_2010_EN.pdf
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 pdf (HOH_Ob...)
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Adobe Acrobat Document
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130 KB
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Thanks to new fibre structuring, highly soil-repellent fibres can now also withstand outer influences such as washing and scratching.
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A high-energy magnetic field coil developed at the ITCF for fibre structuring.
Photo: ITCF Denkendorf
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Scientists at the Hohenstein Institute and ITCF Denkendorf realised the soil-repellent effects observed in lotus plants by fibre-immanent structuring of a surface.
Photo: Hohenstein Institute
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Atomic force microscope (AFM) image of the surface structured PP fibres (micromagnetite).
Photo: Hohenstein Institute
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A scanning electron microscope image of a PP (polypropylene) fibre with a surface structured with magnetic particles.
Photo: Hohenstein Institute
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Atomic force microscope (AFM) image of the surface structured PP fibres (nanomagnetite).
Photo: Hohenstein Institute
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