Preparing Bi-component Dye of Unripe Diospyros kaki THUNB. Fruit and Ecklonia cava and Investigating Its Dyeing Propeties on Fabric

풋감과 감태의 이성분 복합염료 제조와 섬유 염색성 고찰

  • Received : 2018.01.10
  • Accepted : 2018.04.06
  • Published : 2018.04.30


This paper proposes a bi-component dye, including the unripe fruit of Diospyros kaki THUNB and Ecklonia cava, to substitute for traditional persimmon dyeing because fabrics dyed with persimmon juice become stiffer and natural persimmon is insufficient for dyeing. This study examined the color difference and fabric stiffness depending on the ratio of Ecklonia cava for in a one-bath dye solution with Diospyros kaki THUNB and showed that 6% of Ecklonia cava in the bi-component dye was the optimum for decreasing the fabric stiffness. Based on these results, a bi-component dye constituting of 94% Diospyros kaki THUNB and 6% Ecklonia cava was prepared. The particle size was found to be smaller than both single dyes and it maintained a similar amount of Catechin to Diospyros kaki THUNB dye. Finally, cotton fabric dyed with a bi-component dye was much improved in terms of the fabric hand and the surface color was similar to that of the traditional persimmon-dyed fabric. These results could help to develop the natural persimmon dyeing industry.


Diospyros kaki THUNB.;Ecklonia cava;bi-component dye;natural dyeing;stiffness;color characteristics


Supported by : 중소기업청


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