| 简介 |
Artificial leather sheet material is made by hydroentanglement of waste leather fibres. A web (28) of the fibres is advanced on a porous belt (8, 9) high pressure water jet heads (13) in a number of successive hydroentanglement steps. Screens (14) are pressed onto the surface of the web (28) between the water jet heads (13) and the web (28). The screens (14) have apertures which allow deep penetration of the water jets into the web (28) whilst thin screen portions between the apertures act to interrupt the jets and limit formation of furrows (30). Deflector plates (19) are provided alongside water jet heads (13) to remove re-bounding water. |
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