Thermal Conductivity Properties of Summer Cooling Towels

2020 ◽  
Vol 901 ◽  
pp. 95-102
Author(s):  
Yim Ling Lam ◽  
Wen Yi Wang ◽  
Chi Wai Kan ◽  
Maturod Viengsima ◽  
Kasem Manarungwit ◽  
...  
Keyword(s):  
Thermal Conductivity ◽  
Cooling Effect ◽  
Management Behavior ◽  
Product Selection ◽  
Moisture Management ◽  
General Cooling ◽  
First Contact

This study evaluated the cooling properties of summer cooling towels of different brands by studying the liquid moisture management behavior. All the samples were found to provide a cooling effect at first contact after being wetted. The samples of Perfect Fitness showed the highest cooling effect followed, whereas N-rit, Cooldyxm and Ice Towel samples had the poorest cooling effect. Through this study, the general cooling effect of summer cooling towels in the market can be compared which provide some idea to the consumer for product selection.

Moisture Management Behavior of Summer Cooling Towels

2020 ◽  
Vol 897 ◽  
pp. 25-29
Author(s):  
Yim Ling Lam ◽  
Wen Yi Wang ◽  
Chi Wai Kan ◽  
Krailerck Visesphan ◽  
Saowanee Areechongchareon ◽  
...  
Keyword(s):  
Cooling Effect ◽  
Management Behavior ◽  
Moisture Management ◽  
Fabric Structure ◽  
First Contact

This study evaluated the cooling properties of summer cooling towels of different brands by analyzing the moisture management behavior. It was found that all the samples could provide a cooling effect at first contact after being wetted. The samples of Cooldyxm and Ice Towel showed the highest cooling effect followed by the N-rit samples, which was regarded as “fast absorbing and quick drying fabric, whereas Perfect Fitness samples had the poorest cooling effect and was labeled as “slow absorbing and slow drying fabric”. The reason may be explained by the yarn density, fabric structure and thickness.

scholarly journals Thermo-physiological Comfort Properties of Polyester and Polyester/Acrylic blended Synthetic Fabrics treated with Herbal Finishes

2014 ◽  
Vol 9 (3) ◽  
pp. 155892501400900
Author(s):  
Gunasekaran Govindachetty ◽  
Periyasamy Sidhan ◽  
Koushik C. Venkatraman
Keyword(s):  
Thermal Conductivity ◽  
Water Vapor Permeability ◽  
The Body ◽  
Bermuda Grass ◽  
Vapor Permeability ◽  
Moisture Management ◽  
Hydrophobic Nature ◽  
Medicinal Properties ◽  
Moisture Vapor ◽  
Natural Fabrics

Thermo-physiological comfort in clothing mainly lies in moisture management, which often refers to the transport of both moisture vapor and liquid away from the body. Moisture management of fabrics is chiefly influenced by the thermal properties of those fabrics. In spite of the convincing properties that synthetic fabrics have, they are not much preferred because of their hydrophobic nature which provides less comfort to the wearer compared to the natural fabrics like cotton, wool, and silk. Previous studies report that the herbal finishes, which are eco-friendly in nature, improve the anti-microbial and other medicinal properties but very little or no work has been carried out on the comfort aspect of these fabrics. This work reports a study of the influence of two ecofriendly herbal finishes, Neem and Bermuda grass, on the thermo-physiological comfort properties of synthetic fabrics used in clothing. The herbal finishes were applied on to 100% Polyester and 50/50 Polyester/Acrylic blended fabrics. Prior to the application of finishes, the fabrics were given a pretreatment to achieve a better penetration and durability of the finishes. The finished fabrics were tested for the thermo-physiological comfort properties of Wicking, Water vapor permeability, and Thermal conductivity and the results were analyzed. It was revealed that both the Neem and Bermuda grass natural finishes considerably improved the moisture related properties and moderately reduced the thermal conductivity characteristics of the above synthetic fabrics. Durability to washing was also tested and discussed.

scholarly journals Evaluating the Water Vapor Transmission Properties of Summer Cooling Towels

2020 ◽  
Vol 165 ◽  
pp. 05011
Author(s):  
Yim-Ling Lam ◽  
Wenyi Wang ◽  
Chi-Wai Kan ◽  
Nongnut Sasithorn ◽  
Kongkiat Maha-in ◽  
...  
Keyword(s):  
Water Vapor ◽  
Cooling Effect ◽  
Transmission Properties ◽  
Water Vapor Transmission ◽  
First Contact

This study evaluated the cooling properties of summer cooling towels of different brands by studying the water vapor transmission behavior. All the samples were found to provide a cooling effect at first contact after being wetted. The samples of N-rit showed the highest cooling effect followed by Cooldyxm and Ice Towel, whereas Perfect Fitness had the poorest cooling effect.

Effect of Different Conditioning Methods on the Properties of Hosiery Yarn and Knitted Fabric

2015 ◽  
Vol 10 (3) ◽  
pp. 155892501501000
Author(s):  
Uzair Hussain ◽  
Samee Irshad ◽  
Wardah Anam ◽  
Hammad Abbasi ◽  
Faheem Ahmed ◽  
...  
Keyword(s):  
Thermal Conductivity ◽  
Air Permeability ◽  
Knitted Fabric ◽  
Ring Spinning ◽  
Bursting Strength ◽  
Moisture Management

The research reports the results and investigations made on 20/1 cotton hosiery yarn and knitted fabric to evaluate the effect of different conditioning methods on the mechanical and comfort properties of yarn and fabric, namely, bursting strength, moisture management, thermal conductivity, air permeability, skewness, stiffness, and pilling. The fibers spun on a ring spinning system were investigated as yarn according to ASTM standards. From the results it is concluded that the knitted fabric made from machine conditioning has better mechanical and comfort properties than fabric made through unconditioned and room conditioned yarns.

Evolution of moisture management behavior of high-wicking 3D warp knitted spacer fabrics

2012 ◽  
Vol 13 (4) ◽  
pp. 529-534 ◽  
Author(s):  
R. Bagherzadeh ◽  
M. Gorji ◽  
M. Latifi ◽  
P. Payvandy ◽  
L. X. Kong
Keyword(s):  
Management Behavior ◽  
Moisture Management ◽  
Spacer Fabrics

scholarly journals Study on Cooling Effect and Pavement Performance of Thermal-Resistant Asphalt Mixture

2018 ◽  
Vol 2018 ◽  
pp. 1-11 ◽  
Author(s):  
Jiarong Wang ◽  
Zhengqi Zhang ◽  
Datong Guo ◽  
Cheng Xu ◽  
Ke Zhang
Keyword(s):  
Thermal Conductivity ◽  
Thermal Resistance ◽  
Asphalt Pavement ◽  
Asphalt Mixture ◽  
Test System ◽  
Test Methods ◽  
Cooling Effect ◽  
Pavement Performance ◽  
Fine Aggregate ◽  
Low Temperature Cracking

To reduce the temperature of asphalt pavement and improve the antirutting performance of asphalt mixture, a thermal-resistant asphalt mixture (TRAM) was produced, in which a certain proportion of mineral aggregate was replaced by ceramic (CE) or floating beads (FB) featuring low thermal conductivity. Firstly, a parallel plate test was developed to test the thermal conductivity of asphalt mixture added with different thermal-resistant materials. Secondly, the illumination test system was designed to study the visual cooling effect of different TRAM by imitating the natural environment. Finally, the effect of different thermal-resistant materials on asphalt pavement performance was evaluated. The results show that the addition of thermal-resistant materials can reduce the thermal conductivity and the temperature of asphalt mixture. The cooling effect of CE75 and CE100 (coarse aggregate substituted by 75% and 100% CE, respectively) is superior to other aggregates. The temperature reduction rates of CE75 and CE100 reache 6.6°C and 6.8°C, respectively. For FB50 and FB75 (fine aggregate substituted with 50 and 75% FB, respectively), the cooling effect of them reaches 3.9°C and 4.5°C, respectively. In addition, the CE and FB can improve the antirutting performance of asphalt mixture by reducing the temperature inside the pavement. The high-temperature performance of CE75 and FB75 is the best. With the increase of thermal resistance materials, the low-temperature cracking resistance of asphalt mixture decreases gradually. The failure strain of mixture added with 100% thermal resistance materials is close to the lower limit of Chinese specification. The water stability of different TRAM changes with various test methods. Taking into account the results of pavement performance and the cooling effect, the substitution proportion of CE and FB for TRAM is proposed as 50%∼75%, respectively.

scholarly journals Comparative Analysis of Thermophysiological Comfort-Related Properties of Elastic Knitted Fabrics for Cycling Sportswear

Materials ◽  
2020 ◽  
Vol 13 (18) ◽  
pp. 4024
Author(s):  
Yetanawork Teyeme ◽  
Benny Malengier ◽  
Tamrat Tesfaye ◽  
Simona Vasile ◽  
Lieva Van Langenhove
Keyword(s):  
Thermal Conductivity ◽  
Specific Activity ◽  
Water Vapor Permeability ◽  
Air Permeability ◽  
Vapor Permeability ◽  
Activity Levels ◽  
Knitted Fabrics ◽  
Drying Time ◽  
Moisture Management ◽  
Fabric Weight

This research focused on the investigation of the thermophysiological comfort properties of four selected knitted fabrics of different fiber blend ratios suitable for cycling wear. Comfort-related properties of the fabrics were determined and compared including air permeability, moisture management properties, drying time, thermal conductivity, and water vapor permeability. For those comfort properties of the fabric to be correlated, fabric structural properties, fabric density, fabric weight, and fabric thickness have been considered. Suited fabrics should have good air permeability, thermal conductivity, moisture management properties, and a short drying time. According to the measurement results, the fabric polyamide/elasane (58/42 PA6.6/EL) with good air permeability, thermal conductivity, moisture management properties, and short drying time was more suited for summer cycling clothing. Furthermore, this paper provides a new understanding of considerations that are needed for several end uses involving specific activity levels.

Hybrid electrospun nanofibrous membranes: Influence of layer arrangement and composition ratio on moisture management behavior

2019 ◽  
pp. 152808371987127
Author(s):  
Meisam Salmani Sangtabi ◽  
Mehdi Kamali Dolatabadi ◽  
Mohsen Gorji ◽  
Ali Akbar Gharehaghaji ◽  
Abosaeed Rashidi
Keyword(s):  
Contact Angle ◽  
Water Vapor ◽  
Environmental Conditions ◽  
Water Vapor Permeability ◽  
Vapor Permeability ◽  
Acidic Water ◽  
Management Behavior ◽  
Water Permeation ◽  
Moisture Management ◽  
Nanofibrous Membranes

This study aimed to examine the fabrication of bi-constituent nanofibrous membranes and investigation of their moisture management behavior in various environmental conditions. In doing so, polyurethane with a hydrophobic nature and superior mechanical behavior and poly(2-acrylamido-2-methylpropane sulfonic acid) (PAMPS) with a hydrophilic nature were utilized. Different hybrid electrospun nanofibrous membranes were aligned based on different layer arrangements and composition ratios. Then, the impacts of the solid fraction of polymers, sequence of stacking, and environmental conditions on water vapor permeability, contact angle, and acidic water permeation were measured and discussed. Tracing the water vapor permeability behavior in samples was carried out through measuring the amount of permeation hourly and proposing some regression models. Bi-modal nanofibrous membranes were successfully fabricated using PAMPS and polyurethane with an average fiber diameter of 543.5 and 216.7 nm, respectively. As the volume fraction of PAMPS increased, the porosities of the samples remained unchanged, the number of pores increased, and the pore size decreased (the average pore diameter was 299.97 nm for the PAMPS sample and 492.35 nm for the polyurethane sample). Despite the better water vapor permeability of the polyurethane membranes than that of the PAMPS membranes, in the first 12 h of the water vapor permeability test, the trend was completely reverse. The results also revealed that in the relative humidity of 55%, the polyurethane layer had the highest water vapor permeability among all samples. The results of the acidic water permeation and contact angle tests showed that the hybrid electrospun nanofibrous membranes exhibit better wicking and wetting properties.

scholarly journals Comfort properties of nano-filament polyester fabrics: thermo-physiological evaluation

2018 ◽  
Vol 69 (04) ◽  
pp. 315-321 ◽  
Author(s):  
AZEEM MUSADDAQ ◽  
HES LUBOS ◽  
WIENER JAKUB ◽  
NOMAN MUHAMMAD TAYYAB ◽  
ALI AZAM ◽  
...  
Keyword(s):  
Thermal Conductivity ◽  
Thermal Resistance ◽  
Cotton Fabric ◽  
Polyester Fabric ◽  
Moisture Management ◽  
Different Types ◽  
Physiological Evaluation ◽  
Thermal Comfort Properties ◽  
The Aesthetic ◽  
Thermal Absorptivity

Comfort along with the aesthetic properties of textile clothing in activewear and sportswear are utmost worthwhile for costumer demand as latest trends. Different types of fibers and yarns are being used to improve the moisture management and comfort of the fabric for next to skin. Nowadays, multifilaments or nano-filaments of polyester with diameters in the range of a few nanometers and lengths up to kilometers are used in different range of important technological applications such as functional fabrics, biomedicine, composite, etc. Multifilament polyester yarns are made by aggregating many continuous filaments together characterized by their high tenacity and large surface area per unit mass. The nano-filament yarn has also significant effects on thermal comfort properties as a nano-filament fabric has less thermal conductivity than cotton fabric, but equal to multichannel polyester fabric while nano-filament fabrics gave the cool feelings with higher thermal absorptivity. Moreover,coolmax fabric showed the higher value of thermal resistance as compared to nano-filament fabrics. Nano-filament fabrics exhibited higher value of watervaporpermeability than cotton fabric.

scholarly journals River Branch Inspired Janus Textile with Moisture Wicking and UV Resistant Properties

2021 ◽  
Author(s):  
Jinju Zhang ◽  
Juanjuan Sun ◽  
Yunjie Yin ◽  
Chaoxia Wang
Keyword(s):  
Thermal Conductivity ◽  
Water Transport ◽  
Cotton Fabric ◽  
Screen Printing ◽  
The Novel ◽  
Nano Zno ◽  
Moisture Management ◽  
New Strategy ◽  
Transfer Channel ◽  
Gap Width

Abstract Discontinuous hydrophobic/hydrophilic Janus fabric resembling river branches is prepared by nano-ZnO pretreatment and screen printing for directional water transport and thermal conductivity properties. A river branch-like structure is constructed dexterously, and the effect is quantitatively adjusted by accurately regulating the gap width of hexagon water-transfer-channel. Fabrics based on these rivers branch-like hexagon structure possess enhanced moisture wicking performance, a desired water transport index of 147.26%, which are over seven times higher than conventional cotton fabrics. Meanwhile, nano-ZnO treatment improves the thermal conductivity of cotton fabric, which accelerates the evaporation of sweat on the surface of cotton fabric. Moreover, nano-ZnO cotton fabric shows an outstanding UV resistant property with 145 UPF value. The novel discontinuous hydrophobic/hydrophilic Janus fabric could provide a new strategy for the development of moisture management textiles.

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