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유혜자,이혜자,변성례 한국의류학회 1997 한국의류학회지 Vol.21 No.4
The dyeing characteristics of acorn was investigated. The natural Fabrics-cotton, rayon and silk-were dyed repeatedly in the solution extracted from acorn, CuSO_4,, K_2Cr_2O_7, and brine were used as mordants to improve color fastness. Anti-bacterial property was measured in the dyed and mordant treated fabrics. When the cotton and rayon fabrics were dyed and treated with CUSO_4,, their colors showed very clear. They also had good color fastness and excellent anti-bacterial property. The dyed silk fabrics had better dye absorption property than the cotton and rayon fabrics without mordant treatment. But the fabrics dyed without mordant treatment had low light fastness. The cotton, rayon and silk fabrics dyed and treated with brine were dark and unclear. An aftertreatment with CuSO_4 and K_2Cr_2O_7 made the dyed fabrics darker and more clear.
Hydroxmic Acid계 Chlate Reain의 제조와 특성화
유혜자,전호진,전동원 한국섬유공학회 1992 한국섬유공학회지 Vol.29 No.5
In this study, preparation of new chelating resins hearing dihydroxamic acid groups and the adsorptive ability for heavy metal ions are described. The various types of the macroporous polychloromethylstyrene(PCMS) resin matrix were firstly synthesized by polymerizing chloromethylstyrene(CMS) with divinylbenzene or ethylene-glycol dimethacrylate. PCMS was treated with diethylmalonate in N, N'-dimethylformamide to give the resin having diethylmalonate groups. These resins were then treated with hydroxylamine in methanol to afford the dihydroxamic acid resin. The dihydroxamic acid polymer contained carboxylic acid groups as well as hydroxa-mic acid ones. The polymer showed an excellent adsorption capacity for uranium ions.