Equation for handle assessment of cotton and polyester fabrics using nozzle extraction testing method

노즐시험법을 이용한 면/폴리에스터 직물의 촉감 방정식

  • Yoon, Chang-Hyun (Department of Organic Materials and Fiber Engineering, Soongsil University) ;
  • Chun, Dae-Yeop (Department of Organic Materials and Fiber Engineering, Soongsil University) ;
  • Hong, Cheol-Jae (Department of Organic Materials and Fiber Engineering, Soongsil University)
  • 윤창현 (숭실대학교 공과대학 유기신소재.파이버공학과) ;
  • 전대엽 (숭실대학교 공과대학 유기신소재.파이버공학과) ;
  • 홍철재 (숭실대학교 공과대학 유기신소재.파이버공학과)
  • Received : 2010.11.06
  • Accepted : 2010.12.29
  • Published : 2011.06.30

Abstract

Fabric extraction force measured through nozzle tester reflects a comprehensive fabric handle. Nozzle tester takes advantage of low cost, and simple and fast operating procedure compared with KES system. The paper is to develop the semi-emprical equation for assessment of the fabric handle measured with nozzle tester on the basis of friction law. The variables considered in the equation arc fabric's frictional coefficient and drape coefficient which is determined in terms of fabric bending length and shear strain. The experiment of 12 different cotton and polyester fabrics and comparisons between experimental and theoretical results were conducted. Fabrics of high frictional coefficients, high bending length, and low shear strain showed high fabric handle forces (low handle values). The handle forces predicted from the equation agreed well with those measured, which indicates that the equation can be used to objectively evaluate fabric handle with respect to fabric's own properties and also provide an information for fabric design to improve the handle performance.