코치닐 染色에서 키토산處理 方法의 變化가 綿, 나일론, PET의 染色에 미치는 影響(Ⅱ) - 色相과 空氣透過度 特性에 關하여 -

Abstract

In this study, we reviewed the color changes accompanying the laundering, wash fastness, and abrasion fastness of chitosan-treated cochineal-dyed fabrics. The treatment methods were classified into two based on the chitosan treatment:(Method 1): fabric specimens were pre-treated with chitosan prior to the dyeing procedure in salt form.(Method 2): the state of chitosan acid salt formation, coated on the yarn surface, was destroyed and neutralized prior to the dyeing process.The changes in the chitosan treatment methods bear more important meaning in view of the durability. In Method 1, it is highly likely for the chitosan to be detached from the surface by water during laundering since the chitosan is coated as acid salt state. In Method 2, the resistance of the chitosan to water was supposed to revive since the chitosan would return to its original state. Differences in the resistance of the chitosan treatment, however, according to the Method 1 and Method 2, fell short of our expectations. In Method 2, the wash fastness did not improve as we expected since the bond between the fibers comprising fabric specimens and the chitosan is not high even if the chitosan itself has high resistance to water.