PRODUCTS/ Polyurethane Soles


POLYURETHANE

The polyurethane for soles is a rubbery material, biodegradable, formed by the chemical reaction of the polyol and isocyanate in the presence of a suitable additive that gives the final product the characteristics of flexibility, softness and lightness and resistance desired. The polymer obtained by this reaction (which involves the passage from a liquid state to a solid state), has chemical-physical characteristics that are completely different from those of the raw materials, assuming the prerogatives that make it functional to multiple uses (from the foams for padding to funds for shoes). The bottom of the shoe is formed by pouring directly the isocyanate and the polyol combination-additive into the mold with the drawing of the base. The molded sole is then subjected to various finishing processes such as washing in special machines that allow you to remove each layer of silicone retained from the bottom in the molding seat and the subsequent painting. This operation is performed by automated machines that, through the hooks conveyors, lead the soles in two rooms of sequential painting where there are placed a series of spray guns. Each painting chamber and' equipped with veil of water and of a plant of localised intake leading to a chiller of polluting particles which reduce to a minimum the dispersion of pollutants into the environment. The drying operation is facilitated by high temperature ovens. At the end of the cycle, the soles are automatically disengaged, stowed in baskets and then taken to the quality control department and packaging