Patent ID: 9080262
Filing Date: 2015-07-14
Classification: A61F,D01G,D04H,D06B,D06C

Abstract:
1. An apparatus for bulking nonwoven fabric comprising a hot air generator, an air supply duct having an inlet for receiving hot air from the hot air generator and an outlet for delivering the hot air to nonwoven fabric being transported, and a sucking part sucking in hot air delivered from the outlet to the nonwoven fabric and passed through the nonwoven fabric, the air supply duct having an inflow portion providing an inflow path and an outflow portion, the inflow portion leading the hot air introduced into the inlet to flow in parallel to the transverse direction of the nonwoven fabric, and the outflow portion forming an angle with the inflow portion to lead the hot air having flowed through the inflow portion to the outlet, the air supply duct having a plurality of baffle plates disposed therein, each baffle plate having a flow-facing part and a flow-guiding part located in the inflow portion and the outflow portion, respectively, the plurality of baffle plates being arranged such that the inflow path in the inflow portion has a decreasing cross-sectional area with distance from the inlet, wherein each baffle plate is longer in its flow-guiding part than in its flow-facing part.