Air Permeability Properties Of Fabrics Research Articles

Evaluation of fiber, yarn, and woven fabric properties of naturally colored and white Turkish organic cotton

White and naturally colored organic cotton fiber usage and its production as textile end-products have been one of the new considerable efforts to reduce the waste generated during wet textile processing stages. This paper has focused on evaluation of the mechanical and air permeability properties of plain, twill and ribs fabrics made of unique white and naturally colored Turkish organic cotton types. Statistical evaluation of yarn and fabric properties was conducted using ANOVA statistical approach. According to statistical test results of two-factor ANOVA, cotton type and fabric weave structure parameters were generally significant factors on some mechanical and air permeability properties of fabric samples made of white and naturally colored cotton at significance level of 0.05. As a general result, white and naturally colored organic Turkish cotton utilized textile fabrics have given satisfying mechanical and air permeability property levels which reveal that those samples may be used for apparel garments.

English

As a result of the literature review, it was observed that previous studies concentrated mainly on investigating the water absorption properties of towel fabrics, but limited studies analyzed air permeability properties of towel fabrics. The purpose of this study is to investigate the air permeability of bamboo / cotton and cotton towels produced with different pile heights and to analyze the effect and importance level of pile fiber type and pile height in these two types of towel fabrics. The paper presents an investigation of the air permeability ability of towel fabrics with respect to pile height and pile fiber type. Towel fabrics were produced under industrial conditions. 100% bamboo and 100% cotton yarns were used as pile yarns, while 100% cotton yarn was used as weft and ground warp yarn. The effect of pile fiber type and pile height on the air permeability properties of fabrics was compared using analysis of variance (ANOVA). The Design Expert 6.01 program was used for statistical analyses. It was found that air permeability of bamboo/cotton towel fabrics was higher than 100% cotton towel fabrics and the air permeability of both types of towels decreased as pile height increased. Key words: Bamboo, cotton, terry towel, air permeability, pile height.

Investigation of Moisture Management and Air Permeability Properties of Fabrics with Linen and Linen-Polyester Blend Yarns

This paper has focused on moisture management (MMT) and air permeability properties of fabrics produced from linen (100%) and linen-polyester yarns (80% polyester and 20% linen) at different weft densities. In the experimental study, eighteen different types of fabrics composed of six different weft yarns with three levels of weft density (weft density of 8,10 &12 pick/cm for 100% linen fabrics and 14,16,18 pick/cm for polyester-linen fabrics) were selected in order to determine the influence of weft density and yarn structural parameters (number of yarn folds) on moisture management as well as air permeability properties. The following weft yarns were selected: 104/1 tex, 104/2 tex & 104/3 tex for 100% linen and 41/1 tex, 41/2 tex & 41/3 tex for 80% Polyester – 20% linen fabrics, whereas the warp yarn was constant – 50/1 tex 100% linen for all fabric types. Satin type fabrics were subjected to moisture management tests and air permeability tests as well. According to test results, it was determined that some of the moisture management (wetting time, absorption rate (%/s) and one-way accumulative transport index of the fabrics’ top surfaces and bottom surfaces) and air permeability properties were significantly affected by the number of yarn folds and the weft density at a 0.05 significance level.

Analysis of thermal comfort properties of jacquard knitted mattress ticking fabrics

Purpose – Sleep is a vital and a basic activity of human life and it is a physiological need for human body. Sleep quality is directly influenced by the comfort conditions of sleep environment. The purpose of this paper is to define the role of textile materials utilized as bed fabrics on air and mass transfer from the human body. Design/methodology/approach – Thermal conductivity, thermal resistance, thickness, water vapour permeability and air permeability properties of fabrics were analyzed and statistically evaluated. Thermal conductivity and resistance measurements were performed in Alambeta test instrument. Water vapour permeability tests were done according to the Rotating Platform method, and air permeability was measured in FX 3300 Textest air permeability tester. Relationships between comfort parameters were statistically evaluated with correlation analysis. Findings – Comfort is a major concept in the determination of overall life quality as well as sleep quality of a resting person. Therefore academic studies about thermal comfort prediction of sleep environment and bed surface fabrics are of great importance. This study investigates conventional mattress ticking fabrics in terms of comfort parameters and defines the important fabric properties on comfort parameters. Originality/value – Sleep comfort is a promising area in textile comfort studies with its dynamics different from body thermal comfort during daily life. However, in general comfort studies are about garment materials which are in direct contact with the skin. This study tries to define the comfort status of textile materials which have indirect contact with the human body surface during sleep duration.

Methods of PCM microcapsules application and the thermal properties of modified knitted fabric

The aim of the study is to analyze the impact of application methods of microcapsules containing n-octadecane as phase change materials (M-PCM) on the thermal properties and air permeability of modified textile fabric. Polyester knitted fabric, printing, coating and padding methods and polymer pastes with 20 wt.% of M-PCM were used. For the assessment of modification effects the differential scanning calorimetry (DSC) and scanning electron microscopy (SEM) were used. DSC analysis showed that the highest enthalpy of phase transitions has printed fabric and the lowest padded fabric. The widest range of phase transitions temperatures was observed for printed fabric, slightly narrower for coated fabric and the narrowest for padded fabric. SEM analysis showed differences in the morphology of modified fabrics depending on incorporation techniques, which are compatible with differences in air permeability results. M-PCM application techniques allow to regulate the thermal and air permeability properties of fabric.