Effect of Earthworm Protease on Dyeing Properties of Protein Fibers

Yoon-Jung Kwon; Sang-Mo Kang; Soo-Jin Kim; Sun-Young Noh; Joonseok Koh

Textile Coloration and Finishing

Abbr : Text. Color. and Finish.
2006, 18(5), pp.8-14
Publisher : The Korean Society Of Dyers And Finishers
Research Area : Dyeing Engineering

Yoon-Jung Kwon ¹, Sang-Mo Kang ², Soo-Jin Kim ³, Sun-Young Noh ⁴, Joonseok Koh ⁵

¹Konkuk Universty
²Konkuk Universty
³Konkuk Universty
⁴Konkuk Universty
⁵Konkuk Universty

ABSTRACT

An earthworm protease, Lumbricus rubellus, was used to improve the dyeing properties of protein fibers such as wool and silk. The optimal condition for the activity of the earthworm protease was about 40˚C at pH 7. The wool and silk were treated with the protease extracted from an earthworm and the K/S values of the dyed wool and silk were measured using a spectrophotometer in order to compare the dye uptake. The protease treatment enhanced the dyeing properties of protein fibers without severe changes in mechanical properties. The surface appearances of protease-treated fibers were observed by microscopy analysis.
KEYWORDS

earthworm, lumbricus Rubellus, dyeing property, wool, silk1. Introduction For the past few decades, various kinds of dyeing and textile processing technologies have been developed and the processes have performed effectively. However, these technolo
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