For enhancing the fastness to light of cotton dwonproof jig dyed,direct dyes were selected and methods such as fixation and graft adopted.

• 对棉防羽绒布卷染时，为提高日晒牢度，对各种直接染料进行筛选，并通过多种方法如固色、接枝等谋求提高日晒牢度。