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Volume 5, Issue 3 (Suppl) Mod Chem Appl, an open access journal
ISSN: 2329-6798 Global Chemistry 2017
September 04-06, 2017
September 04-06, 2017 | London, UK
5th Global Chemistry Congress
Aulana ®: Novel Nanogold Coloured Wool Textiles for Luxury Markets
James H Johnston and Thomas Borrmann
Victoria University of Wellington, New Zealand
Aulana® is a new technology and luxury nanogold-wool textile product suite, which innovatively combines the nanoscience of
gold with wool fibre proteins to produce a boutique colour range of nanogold-wool textiles for high value international luxury
markets. Aulana® captures the exciting and unique opportunity whereby the prestige and high value of gold are linked directly to the
high quality of New Zealand wool through the use of nanogold as novel stable colourfast colourants in the wool, for the international
high quality fashion apparel, luxury textiles, carpet and rug markets 1-3. This utilises the localised surface plasmon resonance properties
of nanogold wherein the colour exhibited by the gold is dependent upon the size and shape of the nanogold particles and the dielectric
constant of the surrounding material 3,4. These particles are chemically bound to the sulfur and nitrogen containing amino acids in
the wool fibre proteins on the cuticle surfaces and edges (Fig. 2). Spherical particles of gold about 10-20 nm are pink-red in colour
3-5. Precise control of the particle size enables the colour to be changed progressively through shades of pink, red, purple, blue-
grey to grey (Fig 3.) Gold nanorods potentially offer shades of blue, green and red colours, depending upon the aspect ratio of the
gold nanorods6. Nanogold colourants cannot fade or denature in sunlight and hence the nanogold coloured wool products exhibit
excellent lightfastness. Electronmicroscopy and associated X-ray elemental mapping and X-ray photoelectron spectroscopy show
the nanogold is primarily bound to N and S entities on the cuticle edges. The proprietary Aulana® technology and product suite has
been developed on the laboratory scale and progressed to pilot and commercial scale production for loose wool, combed top wool,
yarn (Fig. 3) and fabric as required, using stainless steel textile dyeing equipment. Noble Bond Ltd which owns the Aulana® brand, is
commercialising Aulana® products for use in luxury apparel, upholstery textiles, rugs and carpets. This utilises Noble Bond’s network
of businesses concerned with the wool industry and high value wool products.
Biography
James H Johnston has a Personal Chair in Chemistry at Victoria University of Wellington. He is a Principal Investigator at New Zealand Product Accelerator. He
works at university-industry interface where he is recognized nationally and internationally for his research contributions and achievements in materials science,
nanotechnology and new chemical technologies and product developments. This has led to the establishment of three new start-up companies to facilitate
commercialization of his and co-workers research. He is a Fellow of the Royal Society of New Zealand and of the New Zealand Institute of Chemistry.
James H Johnston et al., Mod Chem Appl 2017, 5:3(Suppl)
DOI: 10.4172/2329-6798-C1-005