Resumen: [EN] There are some scientific papers that verify that the generation of negative ions in the air have
positive consequences on people's mood and health. In this work is intended to increase the generation of
negative ions from polyester fabrics to achieve an increase in well-being and comfort through the realize of
negative ions. To improve the negative ion release ability on different substrates there have been many studies
which have considered silicates as a good particle with these characteristics. Polyester fabrics were treated
using padding system with different tourmaline microparticles in order to modify the surface behavior when
rubbed and demonstrating that it is possible to modify the number of negative ions generated. Two types of
tourmaline microparticles with different size particles, 3 and 30 m, were studied and applied on the
samples with and without an acrylic resin to get a better fixation. To determine the quantity of negative ions
released, an ion counter was used, testing each sample. Finally, the results were studied, analyzing the
different parameters that influence them, as the concentration, the addition of resin or the kind of the particle.
The best results were obtained with the Tourmaline with 30 m at 50 g/L concentration and without the
addition of the acrylic resin.
