| 摘要 |
A method for producing a film with attached fibrils having a cloth-like look and feel. A flocking or metering device is provided for dispensing a layer of the fibrils. The fibrils are next delivered onto a moving vacuum belt, which has a porous surface for drawing the layer of fibrils thereto. After dispersion, the fibril layer is transported and held by the vacuum conveyor belt to a position under a slot cast extrusion die, where a lower temperature melt polymer is released. Upon release, the lower temperature melt polymer and fibril layer fuse and combine to interlock to create a composite temporary web. In one embodiment, the fibril layer and lower temperature melt polymer are delivered at a first nip point between a pair of nip rollers to create the composite temporary web. The composite temporary web may next be collected on collection rolls, or combined with a higher temperature melt polymer under a second slot cast extrusion die to form a permanent film with fibrils. During combination with the higher temperature melt polymer, the lower temperature melt polymer of the composite temporary web melts and fuses into the higher temperature melt polymer and is drawn between a nip roll and a perforated vacuum forming screen having a pressure differential at a second nip point to harden and create apertures in the film and allow the fibril layer to follow the contours of the film, while the openings of the apertures remain free from fibrils.
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