ripple coefficient
1.The traditionary high-voltage DC power-supply, which usually can be got by boosting 220V 50Hz AC voltage with transformer and then converting voltage with rectifier filter, has big bulk and weight, high ripple coefficient of output voltage, low stabilization and efficiency.
2.Two fusible interlinings with different characteristics are chosen to adhere. The quality indexes are tested of the static and dynamic drape coefficient,liveliness rate,ripple number,aesthetic coefficient and stiffness coefficient,and several new indexes are introduced to analyze and compare fusible interlinings effected on clothing draping property.

