Electrical Resistance of Stainless Steel/Polyester Blended Knitted Fabrics for Application to Measure Sweat Quantity
Skin wetness and body water loss are important indexes to reflect the heat strain of the human body. According to ISO 7933 2004, the skin wetness and sweat rate are calculated by the evaporative heat flow and the maximum evaporative heat flow in the skin surface, etc. This work proposes the soft tex...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-03-01
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| Series: | Polymers |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2073-4360/13/7/1015 |
| _version_ | 1797540129786560512 |
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| author | Qing Chen Lin Shu Bailu Fu Rong Zheng Jintu Fan |
| author_facet | Qing Chen Lin Shu Bailu Fu Rong Zheng Jintu Fan |
| author_sort | Qing Chen |
| collection | DOAJ |
| description | Skin wetness and body water loss are important indexes to reflect the heat strain of the human body. According to ISO 7933 2004, the skin wetness and sweat rate are calculated by the evaporative heat flow and the maximum evaporative heat flow in the skin surface, etc. This work proposes the soft textile-based sensor, which was knitted by stainless steel/polyester blended yarn on the flat knitting machine. It investigated the relationship between electrical resistance in the weft/warp directions and different water absorption ratio (0–70%), different sample size (2 cm × 2 cm, 2 cm × 4 cm, 2 cm × 6 cm and 2 cm × 8 cm). The hydrophilic treatment effectively improved the water absorption ratio increasing from 40% to 70%. The weft and warp direction exhibited different electrical behaviors when under dry and wet conditions. It suggested the weft direction of knitted fabrics was recommended for detecting the electrical resistance due to its stable sensitivity and linearity performance. It could be used as a flexible sensor integrated into a garment for measuring the skin wetness and sweat rate in the future instead of traditional measurements. |
| first_indexed | 2024-03-10T12:55:40Z |
| format | Article |
| id | doaj.art-ef11d0b6e6f64055bb2576a494443bbc |
| institution | Directory Open Access Journal |
| issn | 2073-4360 |
| language | English |
| last_indexed | 2024-03-10T12:55:40Z |
| publishDate | 2021-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Polymers |
| spelling | doaj.art-ef11d0b6e6f64055bb2576a494443bbc2023-11-21T11:59:36ZengMDPI AGPolymers2073-43602021-03-01137101510.3390/polym13071015Electrical Resistance of Stainless Steel/Polyester Blended Knitted Fabrics for Application to Measure Sweat QuantityQing Chen0Lin Shu1Bailu Fu2Rong Zheng3Jintu Fan4Shanghai International Fashion Innovation Center, Donghua University, Shanghai 200051, ChinaSchool of Electronic and Information Engineering, South China University of Technology, Guangzhou 510640, ChinaShanghai International Fashion Innovation Center, Donghua University, Shanghai 200051, ChinaShanghai International Fashion Innovation Center, Donghua University, Shanghai 200051, ChinaThe Institute of Textiles and Clothing, The HongKong Polytechnic University, Hongkong, ChinaSkin wetness and body water loss are important indexes to reflect the heat strain of the human body. According to ISO 7933 2004, the skin wetness and sweat rate are calculated by the evaporative heat flow and the maximum evaporative heat flow in the skin surface, etc. This work proposes the soft textile-based sensor, which was knitted by stainless steel/polyester blended yarn on the flat knitting machine. It investigated the relationship between electrical resistance in the weft/warp directions and different water absorption ratio (0–70%), different sample size (2 cm × 2 cm, 2 cm × 4 cm, 2 cm × 6 cm and 2 cm × 8 cm). The hydrophilic treatment effectively improved the water absorption ratio increasing from 40% to 70%. The weft and warp direction exhibited different electrical behaviors when under dry and wet conditions. It suggested the weft direction of knitted fabrics was recommended for detecting the electrical resistance due to its stable sensitivity and linearity performance. It could be used as a flexible sensor integrated into a garment for measuring the skin wetness and sweat rate in the future instead of traditional measurements.https://www.mdpi.com/2073-4360/13/7/1015knitelectrical resistanceliquid sweathydrophilicity |
| spellingShingle | Qing Chen Lin Shu Bailu Fu Rong Zheng Jintu Fan Electrical Resistance of Stainless Steel/Polyester Blended Knitted Fabrics for Application to Measure Sweat Quantity Polymers knit electrical resistance liquid sweat hydrophilicity |
| title | Electrical Resistance of Stainless Steel/Polyester Blended Knitted Fabrics for Application to Measure Sweat Quantity |
| title_full | Electrical Resistance of Stainless Steel/Polyester Blended Knitted Fabrics for Application to Measure Sweat Quantity |
| title_fullStr | Electrical Resistance of Stainless Steel/Polyester Blended Knitted Fabrics for Application to Measure Sweat Quantity |
| title_full_unstemmed | Electrical Resistance of Stainless Steel/Polyester Blended Knitted Fabrics for Application to Measure Sweat Quantity |
| title_short | Electrical Resistance of Stainless Steel/Polyester Blended Knitted Fabrics for Application to Measure Sweat Quantity |
| title_sort | electrical resistance of stainless steel polyester blended knitted fabrics for application to measure sweat quantity |
| topic | knit electrical resistance liquid sweat hydrophilicity |
| url | https://www.mdpi.com/2073-4360/13/7/1015 |
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