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http://dx.doi.org/10.5764/TCF.2018.30.4.275

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

Lee, Hye Mi (Korea Dyeing and Finishing Technology Institute(DYETEC))
Kim, Ah Rong (Korea Dyeing and Finishing Technology Institute(DYETEC))
Kim, Dae Geun (Korea Dyeing and Finishing Technology Institute(DYETEC))
Publication Information
Textile Coloration and Finishing / v.30, no.4, 2018 , pp. 275-287 More about this Journal
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 $160^{\circ}C$ 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 $PUD-SiO_2$ mixture evenly in the water-dispersed polyurethane resin, sufficient stirring was done for a period of time. When the $PUD-SiO_2$ 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 $200{\sim}380g/m^2$ had the ability to improve dispersibility and fastness.
Keywords
environmentally synthetic suede; polyurethane dispersion; dip-coating; non-fluorinated water repellent; silica;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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