Needling Machines TRIZ Cases
- Apparatus for compacting and/or structuring a nonwoven, and a structural shell
See how axially segmented rings enable easy handling and mounting of structural shells while ac
- Nonwoven Web Stretching After Needlepunching Shrinkage
A transverse stretching stage applies more force at web edges after needling to correct shrinkage, improve mass uniformity, and stabilize winding.
- Hydroentangling Drum Spacing With Angled Wires for Drainage
Angled wires on a perforated base drum keep spacing open for water drainage, reduce fiber jamming, and simplify hydroentangling drum manufacture.
- Cross-Direction Stretching for Needlepunched Nonwoven Uniformity
Offset ringed rollers stretch a needlepunched fiber batt more at the edges to counter shrinkage, improve density uniformity, and ease winding.