실리카 입자를 활용한 친환경 인조스웨이드의 견뢰도 향상에 관한 연구
Study on the Improvement of the Fastness of Dyeing for Environmentally Synthetic Suede Using Silica Particles
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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.
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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