scholarly journals Drying Speed Testing of PES Fabric with Defined Moisture Management

2020 ◽  
Vol 28 (1(139)) ◽  
pp. 43-49
Author(s):  
Tereza Heinisch ◽  
Pavla Tesinova ◽  
Lucie Pološčuková

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.

2013 ◽  
Vol 275-277 ◽  
pp. 2182-2185
Author(s):  
Jun Zhang

Polyester fabric was finished by water-absorbent and quick-dry agent Casofter-252 and moisture management agent Hipom-790 for improving its moisture management property. The quality of moisture absorption finishing of the polyester fabric was detected in terms of wicking height and fast drying time. And the influence of agent concentration, pH, and curing temperature and time on moisture management property was studied in order to obtain the optimum process condition. The best choice for Casofter-252 was agent concentration 20g/L, pH 3, curing temperature 135 oC, curing time 120s, and the optimum finishing condition for Hipom-790 was as follows: agent concentration 30g/L, pH 5, curing at 115 oC for 140 s. The finished polyester fabric under the optimum condition showed much better air permeability. The tensile strength of the fabric increased after moisture finishing with Hipom-790 while it decreased for Casofter-252 used as a finishing agent.


Coatings ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 575
Author(s):  
Amna Siddique ◽  
Tufail Hassan ◽  
Sharjeel Abid ◽  
Munir Ashraf ◽  
Azmat Hussain ◽  
...  

Prolonged drying times of terry fabrics is a problem as they can not be re-used until completely dry. To resolve this issue, we have designed a sandwich polyester in the mid-layer with low moisture content that could reduce the drying time with excellent wicking properties. These fabrics are widely used as activewear and sportswear. The effect of different softeners on the moisture management properties of weft-knitted terry fabrics’ for various applications has also been studied. Terry knitted fabrics were prepared using a circular knitting machine. Six different softeners were applied with three different concentrations, i.e., 10 g/L, 15 g/L, and 20 g/L, on the fabric using the pad-dry-cure method. Moisture management tests and rubbing fastness tests were performed to analyze the applied softener’s effect on the fabric comfort and moisture management performance. Results revealed that softener type (i.e., cationic, anionic, and non-ionic) and concentration levels considerably affect the moisture management capability of terry knitted fabrics.


2019 ◽  
Vol 27 (3(135)) ◽  
pp. 43-50
Author(s):  
Małgorzata Matusiak

Moisture management is defined as the controlled movement of water vapour and liquid water (perspiration) from the surface of the skin to the atmosphere through the fabric. The ability of moisture transport is a very important feature of textile materials from the point of view of the physiological comfort of usage clothing made of these materials. Among the different textile materials (woven, knitted and nonwoven), seersucker woven fabric is considered as having good comfort-related properties. The fabrics are characterised by the occurrence of puckered and flat strips in the warp direction. The puckered effect generates air spaces between the body and the fabric, keeping the wearer cool in hot conditions as the puckered area holds the fabric away from the skin during usage. In the work presented, seersucker woven fabrics of different patterns of the puckered strips were investigated. The aim of the work was to analyse the relationship between the structure of seersucker fabrics and their moisture management properties. Measurement of the moisture transport properties of seersucker woven fabrics was made using a Moisture Management Tester M290, produced by SDL Atlas. Investigations performed showed that the properties of seersucker woven fabrics characterising their ability to transfer liquid moisture are different depending on the variant of the repeat of puckered strips.


2017 ◽  
Vol 88 (11) ◽  
pp. 1319-1331 ◽  
Author(s):  
Hande G Atasağun ◽  
Ayşe Okur ◽  
Agnes Psikuta ◽  
René M Rossi ◽  
Simon Annaheim

In this study, the heat transfer and moisture management properties of fabric combinations for office wear consisting of underwear and shirt fabrics, including three different fiber types and three kinds of weave types, were investigated. A sweating torso methodology was applied in order to characterize fabric combinations in terms of thermophysiological comfort for office occupants. This study showed that the cooling effect due to perspiration, accumulated moisture, and drying time of the combinations with cotton underwear were unaffected by both weave type and fiber type of shirt layer. However, initial cooling and drying time values of the combinations with underwear consisting of hydrophobic fibers were affected statistically significant by the fiber of the shirt layer. The percentage of moisture accumulation in the fabric layers was directly related to the fiber type of the underwear fabrics. Based on an extended data analysis, it was concluded that the combination of polyester underwear and cotton polyester twill shirt fabrics was the most recommendable of all the combinations used in this study with regard to the thermophysiological comfort of office occupants.


1989 ◽  
Vol 69 (3) ◽  
pp. 749-761 ◽  
Author(s):  
ULRICH HERTER ◽  
JOSEPH S. BURRIS

Mechanical drying has frequently caused injury in corn seed. Changes in seed moisture, temperature, and quality were determined for inbred lines A632, B73 and Mo17 to define the relationship between these variables. Ears harvested at ca. 48 and 38% seed moisture could be dried at 50 °C for 4–15 h and 18–24 h, respectively, before germination started to decline linearly with prolonged 50 °C drying. Drying time at 50 °C, seed moisture, or embryo moisture after 50 °C drying could be used equally well for prediction of seed quality. Seedling dry weights often declined even when seed was dried for only a few hours at 50 °C. Temperature measurements within seeds indicated that evaporation cooled the seed no more than 5 °C. Drying susceptibility of seed parents varied greatly between years.Key words: Moisture, temperature changes, seed corn, drying


2021 ◽  
Vol 28 (8) ◽  
Author(s):  
Vikrant G. Gorade ◽  
Babita U. Chaudhary ◽  
Ravindra D. Kale

1991 ◽  
Vol 22 (1) ◽  
pp. 13-24 ◽  
Author(s):  
William White ◽  
Paul J. Handal

This study systematically examined the relationship between death anxiety and mental health/distress and controlled for methodological problems present in the literature. Specifically, two measures of death anxiety were used-both had recommended cut-off scores for high death anxiety. Both positive and negative aspects of adjustment were assessed, and a valid clinically meaningful cut-off score for distress was employed. Results revealed high death-anxious females were statistically and clinically more distressed and were significantly less satisfied with life than low death-anxious females. Similar results were obtained for males on one death-anxiety measure; a similar trend was found on the other measure. Discussion focuses on the interpretation of results.


2014 ◽  
Vol 14 (3) ◽  
pp. 174-178 ◽  
Author(s):  
Viera Glombikova ◽  
Petra Komarkova

Abstract This study evaluates the efficiency of non-flammable functional underwear used as a secondary heat barrier in extreme conditions. Five groups of knitted fabrics were analysed for flame resistance and selected physiological properties (water vapour permeability, air permeability, thermal resistance and liquid moisture transport by moisture management transport). The results indicated similar levels of flame resistance for the materials tested but show important differences in terms of physiological characteristics, namely liquid moisture transport, which influences the safety and comfort of protective clothing.


2020 ◽  
Vol 172 ◽  
pp. 04011
Author(s):  
Pauli Sekki ◽  
Pasi Marttila ◽  
Tarja Merikallio

Moisture management in building site has improved significantly in recent years. However, problems with concrete floors are repeatedly found. One possible reason for the failure may be that the time required for adequate drying of the concrete has not been properly considered when scheduling the building process and because the pressure to complete the building, the floor covering has been installed too early. In building industry, there is a clear need for better understanding of the adequate drying times of concrete structures, as well as tools to make sufficient drying estimates. The new tool BY2020 provides a new approach to drying and moisture risk estimations. The simulation tool is a FEM-based model that allows change in geometry with time so that the material layers are automatically added into the model, based on the determined schedule. The boundary conditions are also changing with time based on the schedule. In addition, the water vapor resistance of the flooring material can be modelled to evaluate the long-term moisture behavior of the floor structure. Preliminary results are encouraging and the feedback on the new approach has been positive. Validation process is ongoing and target completion time for the tool is late 2020.


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