Properties of Yarns Obtained by Combining FDY with POY, CDPET and Micro POY Polyester Filaments Under Different Texturing Conditions and Their Visual Effects in Knitted Fabric

In recent years, combination of filament yarns in continuous yarn production are used for innovative product development studies.

In this study, POY and FDY polyester filaments having different structures and specifications were combined using nip-twisters by false-twist texturing method.

Twelve different yarns were obtained by using constant FDY and three different POY materials with the state of FDY in first heater and two different drawing values.

Linear density, breaking force, breaking elongation, shrinkage in boiling water and number of nips were measured in these yarns.

Furthermore, the visual effects in knitting fabrics produced from texturized yarns were investigated.

It was observed that the produced combined yarns have different structural and visual effects compared to single textured yarn.

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Effect of Microfilament Yarns on The Performance Properties of Denim Fabrics

When efforts for innovation in product design are combined with developments in filament yarn technology, these yarns open different alternatives on behalf of evaluate the textile industry.

From this point of view, usage of filament and multifilament yarn structure in denim sector has been a research subject.

In this study, denim fabrics were designed and produced by using multifilament polyester yarns with seven different filament numbers.

The tensile strength (warp/weft), tear strength (warp/weft), stretch properties, air permeability, stiffness, water vapor absorption and hydrostatic pressure test of fabrics were performed.

Fabric stiffness increase and air permeability decrease as long as yarns have more microstructure through higher filament number.

Moreover, it is foreseen that fabric problems may be experienced in terms of elasticity growth when yarns have higher filament number.

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