| 摘要 |
A mat comprises a top layer of highly plasticised PVC, 4, a backing layer of rubber 6 and an optional intermediate layer of woven polyester. During manufacture the top layer and optional intermediate layer are placed on a backing layer of uncured rubber and the layers are then laminated together in a heated press between woven PTFE release sheets. The application of temperature and pressure cures the rubber during lamination. The PVC layer may be perforated to allow gas escape during lamination. The PTFE release sheets may be finely woven to reduce surface texturing of the finished mat. The finished mat may passed through heated rollers, or subjected to additional pressing in a heated press, to further reduce surface texturing. The mats are launderable and stated to be used for trapping dust and/or bacteria, for example in a clean room environment. |
