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1

Effect of Lycra Weight Percent and Loop Length on Thermo-physiological Properties of Elastic Single Jersey Knitted Fabric

Khalil Amany, Těšinová Pavla, Aboalasaad Abdelhamid R.R.

Autex Research Journal

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2022

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Vol. 22, no. 4

419--426

EN

The aim of this work is to estimate the effect of loop length and Lycra weight percent (Lwp) on the geometrical and thermo-physiological comfort of elastic plain knitted fabric. Fifty single jersey knitted fabric samples were produced at five levels of Lycra weight percent (Lwp) (4%, 5%, 6%, 7%, and 8%) and loop length (2.7 mm, 2.9 mm, 3.1 mm, 3.3 mm, and 3.4 mm) with full plaited (fp) and half plaited (hp) of bare Lycra. The thermo-physiological comfort properties (thermal conductivity, absorptivity, and water vapor permeability), air permeability, and geometrical properties were measured at standard of each one. The results showed that the elastic single jersey knitted fabric thickness ranged between 3.12 times and 4.2 times of the yarn diameter (d). The fabric thickness increased when loop length is increased and decreased when Lwp is increased. The thermal conductivity, absorptivity, and water vapor resistance (WVR) decreased with Lwp increasing.

2

Comprehensive Assessment of the Properties of Cotton Single Jersey Knitted Fabrics Produced From Different Lycra States

Khalil Amany, Fouda Abdelmonem, Těšinová Pavla, Eldeeb Ahmed S.

Autex Research Journal

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2021

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Vol. 21, no. 1

71--78

EN

This research aims to evaluate the properties of cotton single jersey knitted fabrics (SJKF) produced from cotton/spandex yarns at different Lycra states. So, four different SJKF were produced, namely 100% cotton, cotton with additional Lycra (full-platted), core, and dual-core-spun (DCS) yarns with the same loop length. The thermal comfort properties, fabric recovery, total hand value (THV), moisture management parameters, and air permeability were measured. The experimental results showed that the use of DCS yarns in the SJKF improves the fabric elastic recovery by 100%. The obtained values of air permeability, THV, and overall moisture management capacity of stretched SJKF are lower than 100% cotton fabric sample. Thermal absorptivity of core and dual-core samples increased by 27% and the water vapor permeability decreased by 18% compared to 100% cotton fabric sample.

3

Drying Speed Testing of PES Fabric with Defined Moisture Management

Heinisch Tereza, Těšinová Pavla, Pološčuková Lucie

Fibres & Textiles in Eastern Europe

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2020

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Vol. 28, no. 1 (139)

43--49

EN

This paper deals with the evaluation of the moisture management of woven polyester fabric in three basic weaves – plain, twill and satin. It details types of liquid management and evaluates fabric comfort in terms of liquid moisture transport, drying speed and the moisture management of resistivity. It discusses the relationship between moisture management and the drying time of textile structures. New equipment is defined for drying speed determination, and its schematic and principles are discussed in this paper. Because the methods have some limitations and matters of presumption, the necessary interpretation of results is also discussed.

PL

W artykule dokonano oceny zarządzania wilgocią tkaniny poliestrowej o trzech podstawowych splotach – gładkim, diagonalnym i satynowym. W pracy omówiono rodzaje zarządzania płynami i ocenę komfortu tkaniny pod względem transportu wilgoci w cieczy, prędkości suszenia i zarządzania odpornością na wilgoć. Przeanalizowano związek między zarządzaniem wilgocią a czasem schnięcia struktur tekstylnych. Zdefiniowano nowy sprzęt służący do określania szybkości suszenia, przedstawiono jego schemat i szczegółowo omówiono zasadę działania.