Lightweight needled nonwovens
Lightweight nonwovens made of PES, PP, cotton and viscose blends can be produced in a card-crosslapper installation with subsequent needling saving energy resources.
- Area weight from 30 g/m²
- High strength in machine and cross direction
- Abrasion resistance
- Very good surface quality
- High absorption of water
- Good surface handle
- High fluid absorptive capacity
-
Medicine: operating room hygienic clothing and covers, wound dressings etc.
-
Hygiene and household: coverstock, wet wipes, dry disposable wipes
Lightweight needled felts are typically produced from viscose, polyester or cotton fibre using the card-crosslapper process. After opening and blending, the fibres are fed to a dosing opener (DON) which supplies the card feeder as required and further opens the fibres. The card feeder MultiFeed opens the fine fibres and creates a uniform web which is fed to the card. A belt weigher or a radiography unit keep the weight of the flock mat constant. In the card (VectorQuadroCard 4-Q-5) the fibre flocks are further opened and blended. The highspeed crosslapper (HyperLayer) can lay down precisely from 2 to 4 double layers with a low web weight,, thus creating very lightweight nonwovens with a high proportion of cross oriented fibres. The web can be subsequently consolidated in Cyclopunch needlelooms. In these needlelooms the concept of individual fibre transport is realized. By using a high needle density of approx. 20,000 needles/m/board most of the mobile fibres are consolidated in the web thus creating a surface resistant to abrasion.