• 제목/요약/키워드: Sulfatoethylsulfone

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일시적 수용성 반응성 분산염료를 이용한 아세테이트/나일론 혼방직물의 일욕염색 (One-bath Dyeing of Acetate/nylon Blend Fabric with Temporarily Solubilized Reactive Disperse Dyes)

  • 이정진;김정훈;윤양수;김재필
    • 한국섬유공학회:학술대회논문집
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    • 한국섬유공학회 2003년도 봄 학술발표회 논문집
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    • pp.202-205
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    • 2003
  • $\beta$-Sulfatoethylsulfone기를 갖는 일시적 수용성 반응성 분산염료는 분산제를 첨가하지 않고도 염욕내에서 단분자 상태를 유지할 수 있으며 염색 공정 중 온도와 pH조건의 변화에 따라 Scheme 1과 같이 비수용성 vinylsulfone form으로 변환된다[1]. 이 때 vinylsulfone기는 섬유와 화학결합을 할 수 있는 대표적인 반응기이므로 이 염료는 일시적 수용성 분사염료와 반응성 염료의 두 성질을 동시에 지닌다[2]. (중략)

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일시적 수용성 반응성 분산염료를 이용한 메타 아라미드 섬유의 염색성 연구 (Dyeing of meta-Aramid Fabric with Temporarily Solubilized Reactive Disperse Dyes)

  • 이연주;이정진
    • 한국염색가공학회지
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    • 제25권4호
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    • pp.262-270
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    • 2013
  • Temporarily solubilized reactive disperse dyes containing ${\beta}$-sulfatoethylsulfonyl group were applied to 100% meta-aramid knitted fabric and their dyeing properties were investigated. Reactive disperse dyes showed relatively high K/S values on meta-aramid fabric when compared with conventional disperse dye or reactive dye, which showed very low K/S values. Color yields of reactive disperse dyes were highly dependent on dyeing pH and optimum results were obtained at pH 6. Percent exhaustion of reactive disperse dye on meta-aramid fabric was over 80% at 2% o.w.f of dye concentration. Wash fastness of pyridone-based reactive disperse dyes was very good to excellent while that of aminoazobenzene reactive disperse dyes was medium to good. Light fastness of all the reactive disperse dyes was very poor which seems to be due to the low photostability of meta-aramid fiber itself.

Synthesis of Temporarily Solubilized Reactive Disperse Dyes and Their Application to the Polyester/Cotton Blend Fabric

  • Lee, Jung-Jin;Han, Nam-Keun;Lee, Won-Jae;Park, Jae-Hong;Kim, Jae-Pil
    • Fibers and Polymers
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    • 제3권3호
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    • pp.85-90
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    • 2002
  • Five temporarily solubilized reactive disperse dyes were synthesized and characterized. They were applied to polyester/cotton blend fabric using one-bath dyeing method without dispersing agent. The dye that has azonaphthalene chro-mophore seemed to not only be exhausted on polyester but also react with cotton. But other dyes were selectively dyed on polyester and showed limited uptake on cotton. Good levelling as well as moderate to good colour fastness was obtained with the dyes on P/C blend fabric.

Photoinitiator-free Photo-reactive Coloration of Wool Fabrics Using C.I. Reactive Black 5

  • Dong, Yuanyuan;Jang, Jin-Ho
    • 한국염색가공학회지
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    • 제24권2호
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    • pp.97-105
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    • 2012
  • Compared with conventional adsorption-based coloration, the photoreactions of dyes such as photo-copolymerization and photo-crosslinking under UV irradiation can be employed for the coloration of textiles, which can be carried out without salt addition at room temperature. C.I. Reactive Black 5, a homo-bifunctional reactive dye containing two sulfatoethylsulfone groups, is used as a photo-reactive dye for wool fibers. Upon UV irradiation, the photo-reactive dye was grafted onto wool fabrics without photoinitiators. Since the disulfide bonds in the cystine residues of wool can be easily photodecomposed to active thiyl radicals which initiate the polymerization, the dye can be polymerized to an oligomeric dye of a degree of polymerization of 12 or more. The grafted fabrics reached a grafting yield of 2.3% o.w.f. and a color yield (K/S) of 18.2 by the photografting of an aqueous dye concentration of 9% using a UV energy of 25J/$cm^2$. Furthermore, the photochemically dyed wool fabric showed higher colorfastness properties to light, laundering and rubbing comparable to conventional reactive dyeing.