Textile Coloration and Finishing (한국염색가공학회지)

The Korean Society of Dyers and Finishers (한국염색가공학회)
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Color Strength and Fastness of Pigment Ink with Various Binder Monomer Compositions

바인더의 공중합체 조성에 따른 안료잉크의 발색성 및 견뢰도 연구

  • Kwon, Woong (Department of Textile System Engineering, Kyungpook National University) ;
  • Lee, Minkyu (Department of Textile System Engineering, Kyungpook National University) ;
  • Jeong, Euigyung (Department of Textile System Engineering, Kyungpook National University) ;
  • Bae, Jin-Seok (Department of Textile System Engineering, Kyungpook National University)
  • 권웅 (경북대학교 섬유시스템공학과) ;
  • 이민규 (경북대학교 섬유시스템공학과) ;
  • 정의경 (경북대학교 섬유시스템공학과) ;
  • 배진석 (경북대학교 섬유시스템공학과)
  • Received : 2018.11.21
  • Accepted : 2018.12.03
  • Published : 2018.12.27
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Abstract

The binder polymers for digital textile printing(DTP) pigment inks were prepared using miniemulsion polymerization with various monomer compositions to study effects of monomer compositions on particle size distribution, average molecular weight, Tg, and color strength and rubbing fastness of the dyed fabrics with the prepared binder based pigment ink. The monomers used were MMA(Methyl methacrylate), BA(Butyl acrylate), MAA(Methacrylic acid), NMA(N-methylol acrylamide), NEA(N-ethylol acrylamide) and the ratios of the monomers were changed. The particle size was the smallest with 136nm when the MMA to BA weight ratio was 4:16 and the largest with 290nm when the MMA, BA, MAA, NEA ratio was 2.5:17:0.25:0.25. However, the glass transition temperature was lowest with $-41.90^{\circ}C$ and the color strength and rubbing fastness of the resulting sample were the best when the MMA, BA, MAA, NEA ratio was used. This suggested that the introduction of the NEA monomer to the binder polymer for the pigment ink could be an efficient way to enhance the rubbing fastness of the DTP pigment inks present.

Keywords

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Figure 1. Effect of the monomer compositions on the particle size distribution of the miniemulsion polymerized binders; (a) MMA:BA=4:16, (b) MMA:BA=8:12, (c) MMA:BA=12:8, (d) MMA:BA=16:4, (e) MMA:BA:NMA:MAA=2.5:17:0.25:0.25, (f) MMA:BA:NEA:MAA=2.5:17:0.25:0.25.

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Figure 2. Color strength of the dyed cotton fabrics using the binders with various monomer compositions.

Table 1. Monomer compositions to prepare the binder polymers in this study

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Table 2. The glass transition temperatures of the binders with various monomer compositions

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Table 3. The molecular weights of the binders with various monomer compositions

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Table 4. Rubbing fastness of the dyed cotton fabrics with the binders with various monomer compositions

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