| abstract |
The present invention relates to a dual structure filament and bristles using the same, and more specifically, by forming a dual structure filament formed of a core layer and a sheath layer including a silicone-based resin and a rigid resin having a friction coefficient of 0.1 to 0.8, and having improved cleaning power. It protects gums, improves interfacial adhesion between core layer and sheath layer, improves strength and flexural recovery rate, thereby providing a refreshing brushing feel, and provides excellent elasticity loss rate of double structure filament. It has the advantage of being longer. |