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In order to examine the availability of color developing for prepared persimmon extract powder dyes, purified and freeze-dried powder from immature persimmon fruit. The cotton fabrics dyed with 1% concentration of powder dyes. This study was conducted to examine into the color developing effects of the powder dye for the dyed cotton fabrics irradiated with xenon light. Powder dye is difficult to dissolve in water resulting in a colloidal and viscous solution. The problem of solubility in water was resolved by setting the dyeing conditions by wetting the dye with alcohol in advance and dissolving in warm water(50 60 ). Samples had no alkaline conversion in making process of powder dyes showed high ∼℃ color developing effect( E △ * , K/S). Samples showed decreased E △ * , K/S with increased alkaline conversion in making process of powder dyes. Samples that had alkaline effects displayed easy early color developing to be advantageous in the process of natural pattern in art work.

Effect of Color Developing by Xenon Irradiation on Cotton Fabrics Dyed with Persimmon Extract Powder Dye