GRAFE is presenting a new combination of colorants at the Techtextil 2013 in Frankfurt. This innovation will significantly reduce the heating up of PA and PET surfaces caused by the thermal absorption of carbon pigments. This temperature minimizing effect is also known under the name “cool black”.
The know how required for the new development has been collected by GRAFE during many years of work in the field of photoselective formulations for LDPE and PET roofing. The solution is available as masterbatch and can dye PA and PET yarns with a dark color. The special coloration guarantees that thermal radiation (in the near infra-red or NIR area) can only be absorbed up to 700nm.
The result is convincing: The reduced thermal absorption means that the product’s surface is perceived as much cooler and more pleasant to touch. Due to the chemical compatibility of the colorants used in PA and PET the experts at GRAFE have also found a way to create an alternative formulation for PP with the same effect.
The new product development has been created for manufacturers of textiles and other semi-finished products made of synthetic yarns who are interested in a simpler and more economical and cost-effective alternative to existing cool black products. Applications are in the field of smart-textiles, covers, floor mats and upholstery fabrics for seats in the automotive industry as well as in building interiors with increased exposure to sun.