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Study on the Improvement of the Fastness of Dyeing for Environmentally Synthetic Suede Using Silica Particles

  • Textile Coloration and Finishing
  • Abbr : Text. Color. and Finish.
  • 2018, 30(4), pp.275-287
  • DOI : 10.5764/TCF.2018.30.4.275
  • Publisher : The Korean Society Of Dyers And Finishers
  • Research Area : Engineering > Fiber Engineering > Dyeing Engineering
  • Received : November 14, 2018
  • Accepted : December 12, 2018
  • Published : December 27, 2018

Hye Mi Lee 1 Ah Rong Kim 1 Dae Geun Kim 1

1다이텍연구원

Accredited

ABSTRACT

In recent years, research on the development of eco-friendly synthetic suede based on water-dispersed polyurethane resin and non-fluorine water repellent has been conducted. Synthetic suede has a problem that the fastness to dyeing is greatly lowered after the water-repellent processing at a high temperature of 160℃because the polyester is dyed with a disperse dye. Therefore, in this study, silica was added to water-dispersed polyurethane resin to improve dye fastness. To distribute the PUD-SiO2 mixture evenly in the water-dispersed polyurethane resin, sufficient stirring was done for a period of time. When the PUD-SiO2 mixture(PUD 1-5%) is applied to the substrate, it is confirmed through SEM that the mixture is uniformly applied without particle condensation. The results showed that silica with a diameter of 4~12nm and BET of 200~380g/m2 had the ability to improve dispersibility and fastness.

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