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자료유형
학술저널
저자정보
저널정보
한국패션비즈니스학회 패션 비즈니스 패션 비즈니스 제7권 제5호
발행연도
2003.1
수록면
83 - 91 (9page)

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It has been known that the chitosan pre-treated fabrics can be dyed without the aid of mordantingprocess. It is due to the fact that chitosan treatment increases the dye uptake. However, the effect ofchitosan on the dyeing mechanism has not been elucidated thus far.Following explanations have been presented regrading the action of the chitosan on the dyeingmechanisms:1. Chitosan absorbs dyestuffs and facilitates dyeing since the chitosan itself has a good affinity towarddyestuffs.2. Chitosan acts as a metallic mordant between the fiber molecule and dyestuff.3. Fiber molecules and chitosan form a coordinate covalent bond.This study aims the quantitative investigation on the effect of the chitosan and the effect of sequence ofthe mordanting, pre-mordanting or post-mordanting, on the dyeing of the fabrics. Cotton fabrics andacylic fabrics were pre-treated with chitosan before dyeing with cochineal dyestuffs.Method 1: Fabrics were, firstly, mordanted with Al, Sn, Cu, and Fe; mordanted fabrics were, secondly,treated with chitosan; mordanted and chitosan-treated fabrics were, thirdly, dyed. Method 2: Fabricswere, firstly, treated with chitosan; chitosan-treated fabrics were, secondly, mordanted with Al, Sn, Cu,and Fe; these were dyed then. Method 2 gave distinguished specific color development with darkershade. Apart from this, chitosan-treated fabrics yielded darker shade compared to the pre-mordantedfabrics without chitosan-treatment.

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