Objective Assessment of the Cooling Function of Textile Products Based on the Combination of WATson and Human Perception

Classen, Edith

doi:10.1007/978-981-15-9376-5_1

Cited by 2 publications

(4 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…To achieve thermal comfort, fabrics should assist the evaporative heat loss. Many fabric-level methods have been developed to characterize the evaporative heat loss properties of textiles [1,[17][18][19][20]. For example, the sweating guarded hotplate is a widely used method to measure the evaporative resistance of fabric based on ASTM F1868 [1].…”

Section: Comparison With Previous Reported Methodsmentioning

confidence: 99%

“…In the method proposed, fabrics are in direct contact with liquid moisture, allowing the absorption and spread of water into the fabric, which changes the energy required for evaporation. The WATson test developed by the Hohenstein Institute is another useful method and it measures the cooling ability of textile fabric samples using a hotplate conducted in a mild environment (30 • C) with thermal radiation [18]. For sweating cylinders, a common method is a three-phase protocol (180 min) based on ISO 18640 [40], which measures the cooling properties of textile materials by monitoring the change of device surface temperature in the activity phase and recovery phase at 20 • C [19,20].…”

Section: Comparison With Previous Reported Methodsmentioning

confidence: 99%

“…The Hohenstein Institute has a novel test method that uses a similar approach to measure fabric evaporative cooling drying performance. The Hohenstein test, conducted in a warm environment (30 • C) with incident thermal radiation [18], incorporates simulated sweating and drying phases. However, because it incorporates thermal conduction and radiation effects, the method does not enable isolation of the contribution of the cooling caused by sweat evaporation.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

A new test method for evaluating the evaporative cooling efficiency of fabrics using a dynamic sweating hot plate

Gao¹,

Deaton²,

Barker³

2022

Meas. Sci. Technol.

View full text Add to dashboard Cite

The lack of direct measures of the ability of a fabric to cool the skin by liquid sweat evaporation is a critical gap in available laboratory tests for evaluating the comfort of active wear clothing materials. This paper describes a novel method designed to evaluate the evaporative cooling performance of fabrics in a protocol that simulates active wear, including sweating and drying periods, in a continuous one-step procedure. It uses a dynamic sweating hot plate to measure the latent heat absorbed by fabrics in sweat evaporation, and in drying after sweat absorption. The efficacy of the method is demonstrated using a selected set of high-wicking polyester and a cotton knit t-shirt material that have different moisture absorption, wicking and drying properties. The cooling efficiency test shows that high-wicking polyester fabrics provide larger evaporative cooling in the sweating phase, where it is more likely to convey cooling benefits to the skin. Cotton fabrics absorb more latent heat in the drying phase, where the cooling effect may contribute to chilling effects. It provides an ideal platform to observe the dynamic relationship between patterns of wicking and liquid moisture spreading in fabrics and the evaporative cooling provided by test materials. It shows that the location of wicked moisture in the fabric is a critical determinant of potential cooling effects. It also shows that a fabric’s wicking ability is not always an accurate predictor of its cooling efficiency. This new test method has provided a unique tool for directly characterizing the cooling efficiency of clothing materials using a protocol that accurately simulate sweating generation and drying in actual active wear scenarios.

show abstract

Section: Comparison With Previous Reported Methodsmentioning

confidence: 99%

Section: Comparison With Previous Reported Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

A new test method for evaluating the evaporative cooling efficiency of fabrics using a dynamic sweating hot plate

Gao¹,

Deaton²,

Barker³

2022

Meas. Sci. Technol.

View full text Add to dashboard Cite

show abstract

“…1,2 It directly influences the comfort of clothing. 3,4 To improve moisture management in clothing, various fibers, coatings and finishes are applied. 5,6 However, imparting a maximum level of comfort with regard to moisture management in conjunction with the required functionality is a complicated task, as the properties related to moisture management depend on the chemical structure of the fibres.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of the moisture management and air permeability of cotton/antistatic polyester knitted fabrics

Asfand

Daukantienė

2023

Journal of Industrial Textiles

View full text Add to dashboard Cite

This research fills in the missing knowledge on the moisture management and air permeability of knitted fabrics developed using mixed cotton/antistatic polyester yarns with both antibacterial and antistatic behavior to enhance their functionality. The effect of the knit pattern, technical side, percentage of fiber mixture and treatment on water absorption capacity and time, relative water vapor permeability and resistance, and air permeability of developed fabrics was investigated. The 1x1 rib knit and half-Milano rib knit patterns were applied in each 4 percentages of cotton and antistatic polyester and 3 types of finishing to prepare 24 fabrics. The water absorption capacity for 1x1 rib knit fabrics was in the range of 182–231% and 162–237% for the half-Milano knitted fabric with the ∼20% increase when increasing the percentage of antistatic polyester or applying the treatment. The water absorption time depended on the pattern, the fabric treatment, and the percentage of the fiber mixture. The applied antibacterial treatment significantly prolonged the water absorption time of most of the dyed and softened samples. The 1x1 rib knitted fabrics showed significantly higher water vapor and air permeability than the half-Milano rib knitted fabrics. The relative water vapor and air permeability of the treated samples increased significantly with an increasing percentage of polyester. Research results are of great practical value when designing new textiles and simulating mathematically their comfort behavior when choosing them for a particular garment.

show abstract

Objective Assessment of the Cooling Function of Textile Products Based on the Combination of WATson and Human Perception

Cited by 2 publications

References 0 publications

A new test method for evaluating the evaporative cooling efficiency of fabrics using a dynamic sweating hot plate

A new test method for evaluating the evaporative cooling efficiency of fabrics using a dynamic sweating hot plate

Evaluation of the moisture management and air permeability of cotton/antistatic polyester knitted fabrics

Contact Info

Product

Resources

About