| 摘要 |
The present invention provides a nonwoven fabric that is especially engineer ed to function as the substrate for a dryer activated fabric softener sheet. Th e substrate has a basis weight of 0.48 ounces per square yard or less, a thickness of from about 0.16 mm to about 0.38 mm, and comprises a nonwoven w eb of fibers, wherein at least some of the fibers are hollow. Preferably the fibers have a size of 2.2 to 8.9 decitex. (2 to 8 denier). In preferred embodiments of the invention, the hollow fibers have a void area at least 10 percent of the fiber cross-section, and the fibers have a noncircular trilob al cross-section. |
