| abstract |
Anti-microbial sheet, and derived product like tile, in particular for medical application, includes a polymeric base including a support layer and an anti-microbial additive in a cover—or anti-microbial layer of significantly lower thickness as compared to the support. The anti-microbial layer is of a composition including the support material and the microbial additive. Effectiveness is increased by a relatively increased concentration of additive in the cover layer, while product cost is reduced due to minimising the active layer to a superficial thickness, typically in a range of 25 to 100 μm. Cost is further reduced by using known co-extrusion allowing further enhancement of the product here by addition of glass flakes, in particular solely to the support layer. Using co-extrusion enables continuous manufacture, reducing costs, by cutting the sheet material at exit into sheets, and allowing relatively increased thicknesses, up to 35 mm. |