The composition, process for the preparation of hydrogen tungsten bronze and bronze or a composition of hydrogen and tungsten, dispersion of particle, and use of hydrogen and tungsten bronze particles or particles containing hydrogen tungsten bronze.

摘要

The invention relates to the use of tungsten oxide or of tungstate to increase the heat-input amount of near infrared radiation in processes selected from laser welding of plastics, NIR curing of coatings, drying of printing inks, fixing of ink toners to a substrate, heating of plastic preforms, laser marking of plastics or paper.