• Title/Summary/Keyword: Disperse dyes

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Dyeing Properties of CDP fiber( II ) - Effect of Heat Setting on Dyeing and Physical Properties of CDP Fabric - (CDP 섬유의 염색성(II) - 염색성 및 물성에 미치는 열처리의 영향 -)

  • Shin Woo Young;Jeong Dong Seok;Lee Mun Cheul
    • Textile Coloration and Finishing
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    • v.17 no.3 s.82
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    • pp.8-15
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    • 2005
  • Cationic dyeable polyester(CDP) fabric was annealed at varying temperatures range from $120^{\circ}C$ to $220^{\circ}C$ for 1, 3, and 5 min under tension. Dyeing rates of CDP fabrics were measured with cationic and disperse dyes at $100^{\circ}C$ and $120^{\circ}C$ in water system. Also X-ray diffraction pattern, DSC thermograms and dyeability of fabric with cationic and disperse dyes were investigated. The intensities of X-ray diffraction peaks of annealed fabric were increased with increasing in annealed temperature, and peak became sharp with heat setting temperature. The apparent color depth (K/S) of CDP fabric initially decreased with increase of heat-setting temperature up to $160\~180^{\circ}C$ and then increased at higher temperature. The shearing modulus(G) and surface roughness were increased with annealing temperature.

Dyeability of Low-melting Hybrid Polyester at Low Temperature (저융점 폴리에스테르 복합사의 저온 염색성)

  • Hwang, Ji-Hyun;Kim, Chang-Nam;Ma, Jin-Suk;Oh, Hae-Sun;Yoon, Nam-Sik
    • Textile Coloration and Finishing
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    • v.24 no.2
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    • pp.113-120
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    • 2012
  • Jacquard floor covering could be prepared from low-melting/regular sheath-core hybrid polyester, where the fiber is dyed in yarn state. With regard that the expected high shrinkage of the hybrid polyester in water makes problems in yarn dyeing, low-temperature dyeing properties of the hybrid polyester were studied. The rate of shrinkage of low-melting hybrid polyester exceeds 9% in hot water above $90^{\circ}C$, at such condition, cheese yarn dyeing is very difficult. Although disperse dyes exhaust in a relatively high speed on low-melting hybrid polyester, diffusion of these dyes to the core regular polyester was extremely slow under $90^{\circ}C$. Foron Blue E-BL 150, an anthraquinone E-type disperse dye, showed appreciable diffusion after 48hrs dyeing at $90^{\circ}C$. The fastness to rubbing and drycleaning were improved by one grade after reduction cleaning.