| 摘要 |
A method for relofting a nonwoven fiber product comprises forming a high-loft nonwoven fiber batt, compressing the high-loft nonwoven fiber batt to form a compressed fiber batt, securing the compressed fiber batt with a restraint, such that the compressed fiber batt will expand in the absence of the restraint, removing the restraint from the compressed fiber batt, thereby allowing the compressed fiber batt to expand into an expanded fiber batt, and relofting the expanded fiber batt using heat, thereby increasing the thickness of the expanded fiber batt to produce a relofted fiber batt. In an embodiment, the high-loft nonwoven fiber batt has a first thickness, the compressed fiber batt has a second thickness less than the first thickness, the expanded fiber batt has a third thickness greater than the second thickness, and the relofted fiber batt has a fourth thickness greater than the third thickness.
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