Carbon, aramid and glass fibers are inherently superior to conventional textile fibers in
terms of mechanical properties and other characteristics. However, each material has its inherent
advantages and disadvantages and it is usually recommended to hybridize them to fully benefit of
their high performance in practical applications to many products. This paper is concerned with an air
texturing process for hybridization of different reinforcement filament yarns. A normal air texturing
machine was selected for process development and modified to suit testing purposes. The modified
process for hybridization was introduced mainly in terms of air-jet nozzles employed in experiments.
With the proposed air texturing process machine, three types of air-nozzle were applied to the
experimental work. Three different filament materials were employed in experiments and they are
carbon (CF), aramid (AF), and glass (GF). As matrix materials, polyether-ether (PEEK), polyester
(PES), and polypropylene (PP) were selected and experimented. Hybrid yarns produced form the
proposed process was evaluated optically in terms of bulkiness, arranging, breaking, and mixing,
respectively. The experimental results were also summarized in terms of relationships between
applied air pressure and yarn count, and variation in count. As a whole, it was concluded from the
experiments that the proposed texturing process could be successfully applied to the practical
hybridization of different reinforcement filament yarns. It was also revealed from the experiments that
the air pressure in the proposed process is not a significant parameter on the pressing in terms of yarn
count.