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The thermal insulation of clothing needs to be easily adjusted in an unsteady environment, but this is extremely difficult for most clothing. To reveal the effect of different styles of Tibetan clothing on their thermal property, the total thermal insulations of Tibetan clothing in three typical styles were measured using a thermal manikin. The clothing area factors (fcl) of the Tibetan clothing and...
In this paper, the structural and mechanical properties of ring-spun yarn were studied comprehensively. Relationships between yarn count, yarn twist, and relative yarn structural and mechanical properties were obtained. Through statistical analyses of 200 pure cotton yarn count, twist and strength, with consideration of some influential factors such as being carded or combed, and the application of...
Compact spinning with a pneumatic groove utilises the transverse air force and mechanical force of the pneumatic groove to condense the fbre bundle in order to eliminate the spinning triangle. This paper analyses the twist resistance moments and torsion moment in the process of twist propagation. Results from this research confrm that the twist propagation is affected by the spinning tension, the...
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