Novel directional expansion cotton sliver

The utility model discloses a novel directional expansion cotton sliver which comprises an expansion body and a facing layer, the facing layer is wrapped outside the expansion body, and the expansion body comprises fireproof ceramic wool and expandable graphite evenly distributed in the fireproof ceramic wool. According to the novel directional expansion cotton strip, due to the fact that the expansion body comprises the fireproof ceramic wool and the expandable graphite evenly distributed on the fireproof ceramic wool, when a fire disaster occurs, the sealing strip can expand in a directional mode, the sealing effect is guaranteed, and therefore better fireproof performance is obtained. 本实用新型公开了一种新型定向膨胀棉条，包括膨胀体和饰面层，所述饰面层包裹在所述膨胀体外，所述膨胀体包括防火陶瓷棉和均布在所述防火陶瓷棉内的可膨胀石墨。本实用新型公开的新型定向膨胀棉条由于膨胀体包括防火陶瓷棉和均布在防火陶瓷棉的可膨胀石墨，使得在遇到火灾时，密封条可以产生定向膨胀，进而保证密封效果，从而获得更好的防火性能。