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Issue 39, 2011
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Formation of relief structures on fibres by photo-embossing

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Relief structures are created on the surface of fibres to generate new effects in these fibres. More specifically, photo-embossing is used to generate the relief structures and to generate a non-contact process without etching procedures which could eventually be applied in high-speed and continuous spinning lines. Typically, a photopolymer mixture consisting of a polymeric binder, a monomer and a photo-initiator is directly spun into a monofilament fibre. The rheological properties of the photopolymer mixture are measured, and it is shown that the photopolymer mixture is visco-elastic at elevated temperatures. Fibres are prepared from the photopolymer mixture, and surface relief structures are generated perpendicular to the fibre axis by photo-embossing using a mask exposure. Optical microscopy (OM) and scanning electron microscopy (SEM) are employed to study the surface morphology of the fibres. It is shown that the height of the surface relief structures is strongly dependent on the pitch of the line mask and on the diameter of the fibres. At optimized conditions, patterned fibres are produced with well-defined surface relief structures. The fibres are rather brittle which is related to the crosslinked chemical network in the fibres.

Graphical abstract: Formation of relief structures on fibres by photo-embossing

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Publication details

The article was received on 26 May 2011, accepted on 01 Aug 2011 and first published on 25 Aug 2011

Article type: Paper
DOI: 10.1039/C1JM12365C
Citation: J. Mater. Chem., 2011,21, 15527-15531
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    Formation of relief structures on fibres by photo-embossing

    M. Dai, O. T. Picot, N. F. Hughes-Brittain, T. Peijs and C. W. M. Bastiaansen, J. Mater. Chem., 2011, 21, 15527
    DOI: 10.1039/C1JM12365C

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