| 摘要 |
Fiber fleeces made entirely of pure artificial (polymeric) fibers or mixed with natural fibers have to be solidified after formation by carding, or laying only in the case of filament fleeces. In the fleece according to the invention, which is particularly bulky and thus needs to be solidified, neither lower-melting binding fibers nor chemical binding agents are used. Also, the mechanical needling process which uses needles is eliminated because this reduces the bulk too severely. The desired bulk is retained by producing solidification by a single water needling process (when performed on one side), with the desired water pressure being no higher than 60 bars, preferably 20-30 bars.
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