System for Testing and Evaluating the Thermal Comfort of Smart Textiles Clothing

Sima, Karel; Mouckova, Katerina; Hamáček, Aleš; Komarkova, Petra; Glombikova, Viera

doi:10.1109/isse49702.2020.9120978

Cited by 6 publications

(3 citation statements)

References 3 publications

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“…Because the body temperature rises again as the activity continues after sweating as stated in previous studies. 37 It was concluded that the highest mean upper body front skin temperatures and mean upper body garment surface temperatures were measured in the cotton/ polyester garment, which had high thermal and water vapour resistance values. This is because, as the insulation value (clo) of the clothing increases, the skin temperature increases, and it becomes more difficult to expel the excess heat generated during the activity.…”

Section: Temperature Sensor Skin Temperature and Thermal Camera Garme...mentioning

confidence: 98%

Investigation of the thermal comfort of the sportswear by standing thermal manikin and thermal imaging techniques

TASTAN

Kaplangiray

Şekir

et al. 2023

Journal of Engineered Fibers and Fabrics

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Garments should not overload the body during activity and should be chosen in accordance with the ambient conditions. Especially in active sports, sportswear should make a person feel comfortable and increase performance by easily removing excess heat and moisture from the body without interrupting physical activity. In this study, five T-shirts with the same size and weight characteristics, but in different yarn types were produced and analysed. The thermal and water vapour resistance properties of these garments were measured using a thermal manikin system. In addition, thermal camera images were taken at 10-minute intervals during the 50-minute wear trial programme, and skin temperatures were measured from the upper front body and the upper back body with two sensors. The results showed that POS and PM-coded garments made of polyester with low clothing insulation (clo) values were statistically different from CS and CPS coded cotton-containing garments in terms of front and back surface thermal camera images. It was observed that cotton-containing garments were more uncomfortable than polyester and Tencel owing to their higher thermal resistance, garment surface temperature, and skin temperature values. The Tencel garment was measured similarly to the CS and CPS coded garments at the beginning of the activity and measured similarly to the POS and PM coded garments at the end of the activity on both surfaces.

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Section: Temperature Sensor Skin Temperature and Thermal Camera Garme...mentioning

confidence: 98%

Investigation of the thermal comfort of the sportswear by standing thermal manikin and thermal imaging techniques

TASTAN

Kaplangiray

Şekir

et al. 2023

Journal of Engineered Fibers and Fabrics

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“…Dolez et al [ 119 ] provided a mature comfort testing method for common textiles can be used for smart textiles, i.e., battery textiles, which includes four aspects: thermophysiological (ISO 11 092, 2014 and ISO 15 831 standard), skin sensorial (ISO 11 092 (2014), ergonomic and psychological. [ 120 ] Sima et al [ 121 ] proposed a system for evaluating thermal comfort of smart textiles clothing, which was capable of sending data through Bluetooth, which was verified by comparative measurements and thermal camera scanning. However, it should be noted that a standard comfort testing method for battery textiles has yet to be enforced, even though many are aware that battery textiles should be comfortable.…”

Section: User Experience With the Fsb Woven Textilementioning

confidence: 99%

Fiber‐Shaped Batteries Towards High Performance and Perspectives of Corresponding Integrated Battery Textiles

Xu,

Chen,

Loh

et al. 2023

Advanced Energy Materials

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Recently, due to its flexibility and ease of integration into wearable electronics, interest in fiber‐shaped batteries (FSBs) is burgeoning. While there is much research focused on improving the electrochemical performance of FSBs, little work is done to evaluate the safety and comfort of integrated FSBs for wearable electronics, which will significantly hinder the further development of high‐performance FSBs and their commercialization. In this review, the design, integration, and evaluation of FSBs incorporated in common textiles are fully discussed. Traditional textile characterization techniques and modern methods to evaluate its durability are also summarized. Finally, in view of developing commercial wearable battery textiles, a perspective toward improving the design of high‐performance FSB is presented.

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“…The evaluation showed that polyester knitted fabrics incorporated with copper were rougher as compared with pure polyester fabric. Sima et al 23 introduced a system to test and evaluate the thermal comfort of smart textile clothing. Oner et al 18 synthesized upholstery fabrics using twisted cotton/polyester yarn with copper wire and measured the air permeability and thermal and water vapor properties of the hybrid fabrics to determine their thermophysiological comfort behavior for electro-textile applications.…”

Section: Introductionmentioning

confidence: 99%

Analysis of electrical and comfort properties of conductive knitted fabrics based on blending ratio of silver-coated yarns for smart clothing

Lee

2022

Journal of Engineered Fibers and Fabrics

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In this study, the relationship between the functionality and comfort of conductive fabrics for smart clothing is investigated by examining changes in the mechanical, electrical, and comfort properties of knitted fabrics based on the blending ratio of conductive yarns. Hence, flat knitted fabrics of the same structure are manufactured using polyester and silver-coated polyamide yarns. Subsequently, their weight, thickness, tensile strength, tensile strain, bending rigidity, breathability, surface properties are measured, and their cool touch feeling, surface resistance, and electrical heating performance are evaluated. Because the strength and specific gravity of a silver-coated conductive yarn are high, with an increase in its blending ratio, its weight, tensile strength, and bending rigidity increase, whereas its strain decreases. In terms of the comfort properties, the air permeability increases as the blending ratio of the conductive yarn increases, because the pores on the surface of the knitted fabric are increased structurally owing to the conductive yarns. However, the water vapor transmission rate remains unchanged. Meanwhile, the surface roughness does not change significantly in the wale direction; however, it increases in the course direction as the blending ratio of the conductive yarn increases. The recoverability from compression decreases, and the work of compression increases as the blending ratio of the conductive yarn increases. This implies that the conductive fabric can be compressed easily but is less likely to recover from compression. Changes in the surface roughness and compression property show that the hand value of the knitted fabric is altered by the insertion of the conductive yarn. The electrical properties improved by increasing the blending ratio of the conductive yarns. In particular, even with only 33% insertion of conductive yarns, extremely good electrical properties are obtained, that is, low resistance, sensitive resistance change due to stretching, and heating of 48°C. Therefore, blending conventional and conductive yarns instead of using only conductive yarns improve comfort and wearability when applying conductive knitted fabrics to smart clothing.

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System for Testing and Evaluating the Thermal Comfort of Smart Textiles Clothing

Cited by 6 publications

References 3 publications

Investigation of the thermal comfort of the sportswear by standing thermal manikin and thermal imaging techniques

Investigation of the thermal comfort of the sportswear by standing thermal manikin and thermal imaging techniques

Fiber‐Shaped Batteries Towards High Performance and Perspectives of Corresponding Integrated Battery Textiles

Analysis of electrical and comfort properties of conductive knitted fabrics based on blending ratio of silver-coated yarns for smart clothing

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