어성초 추출색소를 이용한 친환경 염색: 양모직물의 염색성과 기능성을 중심으로
Eco-friendly Dyeing using Houttuynia cordata Extract: Dyeability and Functionality of Wool Fabrics
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초록
The objective was to study the efficiency of Houttuynia cordata extract colorants as eco-friendly and functional dye for wool fabric. Effects of dyeing conditions and mordanting on dye uptake, color change, and colorfastness were investigated. Also, antimicrobial activity and deodorization performance were evaluated. The Houttuynia cordata colorants showed good affinity to wool fabric and produced YR Munsell color. The optimum condition of dyeing was 2.0% of colorants concentration(o.w.b.) at 100°C for 60 minutes under pH 5.3. Regardless of the mordant type and mordanting method, mordants improved dye uptake and the increase in dye uptake by Fe mordant was higher than that of Al mordant. Al post-mordanting and Fe mordanting changed the color of dyed fabric with Y Munsell color. The colorfastness of un-mordanted and Al post-mordanted fabrics were excellent above grade 4. Bacteria reduction rate(Staphylococcus aureus) of wool fabric dyed with Houttuynia cordata colorants was excellent at 98.2%. Also, the deodorization was good at 81%. The results show Houttuynia cordata colorants can be used as a functional natural dye for wool fabric.
Abstract
The objective was to study the efficiency of Houttuynia cordata extract colorants as eco-friendly and functional dye for wool fabric. Effects of dyeing conditions and mordanting on dye uptake, color change, and colorfastness were investigated. Also, antimicrobial activity and deodorization performance were evaluated. The Houttuynia cordata colorants showed good affinity to wool fabric and produced YR Munsell color. The optimum condition of dyeing was 2.0% of colorants concentration(o.w.b.) at 100°C for 60 minutes under pH 5.3. Regardless of the mordant type and mordanting method, mordants improved dye uptake and the increase in dye uptake by Fe mordant was higher than that of Al mordant. Al post-mordanting and Fe mordanting changed the color of dyed fabric with Y Munsell color. The colorfastness of un-mordanted and Al post-mordanted fabrics were excellent above grade 4. Bacteria reduction rate(Staphylococcus aureus) of wool fabric dyed with Houttuynia cordata colorants was excellent at 98.2%. Also, the deodorization was good at 81%. The results show Houttuynia cordata colorants can be used as a functional natural dye for wool fabric.
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