RadiciGroup to provide Starlight feel to Amicrotex
08 Nov '11
4 min read
Silver nanoparticles, present both on the surface as well as inside the matrix, ensure the uniform distribution of nanoparticles in the yarn and provide both immediate and long-term bacteriostatic activity. Incorporating nanotechnology into the yarn spinning process endows Starlight feel polyester yarn with the following properties, which set it apart from traditional products.
- Higher colour fastness: no colour change thanks to colour pigment masters added during extrusion and the new-generation active ingredient, which is not subject to oxidation.
- Prevention of bad odours caused by microorganisms: since bacteria proliferation is inhibited even after repeated washing, the effect of the microorganisms is minimized.
- Long-term efficacy and wash resistance: silver ion nanoparticles ensure longer efficacy, far superior to the other products tested.
- Low environmental impact: no need for special yarn finishing processes downstream, which would require high consumption of water and energy.
- No deterioration of the yarn's mechanical properties: the incorporation of the active agent does not alter the mechanical properties of the fibre, nor does it hinder textile processing downstream in any way.
Starlight feel bacteriostatic properties have been tested by performing a series of analyses assessing antimicrobial activity and long-term efficacy.
Antimicrobial efficacy and duration were tested according to the methods specified in ISO 20743/JIS 1902 (Textiles and absorbent articles). Articles were graded according to the system for assessment of antimicrobial efficacy devised by the German Hohenstein Research Institute.
The test results for antimicrobial efficacy place Starlight feel in the “strong” class (the highest possible in the Hohenstein Research Institute system), even after repeated washing of the textile articles (up to 300 washes at 40°C).
As of today, the AMICROTEX project has produced the first few metres of antibacterial fabric, which have been tested for antibacterial efficacy at CENTRO TESSILE COTONIERO e ABBIGLIAMENTO SpA and ISTITUTO SAN RAFFAELE. These antibacterial efficacy tests proved positive. Testing of antimicrobial activity after repeated washing and industrial bleaching, as required for medical textile garments, are now in progress. The first hospital coats are also being made for testing in a hospital environment.
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