Effect of jade nanoparticle content and twist of cool-touch polyester filaments on comfort performance of knitted fabrics

Abstract

Cool-touch polyester knitted fabrics with excellent thermal-wet and cooling comfort ability are desired for summer and sports clothing. Jade nanoparticle content and twist of filaments have significant effects on comfort-related properties. In this work, the effects of jade content and twist level of two types of cross-section polyester filament on fabric comfort-related properties were investigated in detail. Filaments were prepared and further knitted to fabric samples. The physical performance of polyester filaments, the thermal-wet transfer properties and dynamic cooling property of their fabrics were measured and analyzed. It was found that the jade nanoparticles mainly affected thermal transfer property of fabrics, and the best thermal transfer was exhibited by fabric with 7% cool-touch PET chip. With the increase of twist level, air permeability, water spreading and drying performance improved but thermal transfer ability decreased, and lower twist level of yarns was beneficial for achieving real moisture cooling properties. These results showed a major advance in developing thermal-wet comfort knitted fabrics using cool-touch filaments with appropriate twist level.

Investigation of the moisture transfer ability and thermal comfort properties of single-layer cotton/polyester interwoven fabrics

“…Figure 9 shows the temperature–time curve of the wet fabrics and the nude test board, which can be used to describe the cooling performance of the wet samples, including the thermal conduction of coupled fabric moisture and the cooling effect of water evaporation. 61 According to Figure 9, the temperature of the fabric rises over time but remains lower than that of the test board, revealing the effective cooling effect of wet fabrics. The temperature of fabrics goes up slowly before 1000 s, but rapidly afterwards, which means that the fabric dries and heat starts to accumulate between the fabric and the test board.…”

The Development and Performance of Knitted Cool Fabric Based on Ultra-High Molecular Weight Polyethylene

“…At present, there are mainly three methods to realize the coolness of fabrics, namely, the application of the fiber with coolness itself or the physicochemical modification of coolness fiber, the fabric structure design, and finishing of fabrics with coolness additives [6,7]. Common fibers to achieve fabric coolness [8] include fibers with high thermal conductivity when spinning, such as jade powder, mica powder and other fibers with high thermal conductivity minerals [9][10][11], as well as fibers with shaped cross sections designed by melt spinning [12][13][14]. In terms of organizational structure, fabrics primarily achieve cooling through pore heat dissipation and water conduction heat dissipation.…”

Designing three-dimensional changed spacer weft-knitted fabrics for efficient absorption and quick-drying partitioned garments

“…[8][9][10][11] Besides, improving the hygroscopicity of yarns, water vapor transmission, and breathability is an effective way to gain absorption and quick-drying fabrics. [12][13][14] Also, the fabric structure and fabric treatment (sorting) or other factors affect the absorption and quick-drying ability of fabrics. [15][16][17] Relative to woven fabrics, the special coil structure of knitted fabrics is endows them with unique transmission properties, such as water vapor permeability, air permeability, thermal conductivity, water management, and so on.…”