| 摘要 |
The invention relates to a thermoplastic sheet, in particular a thermoplastic membrane sheet, which is water- and wind-tight but water vapour permeable and bears on at least one surface an adhesive which is thermoplastic and/or thermoset and was applied in grid fashion in the form of spots. The invention further relates to a process for manufacturing the membrane sheet, wherein the sheet is printed by the paste spot printing process with a hot-melt adhesive in the form of a dispersion paste, and to an apparatus for performing the process, which is characterised by the combination of a haul-off unit which supports, precisely positions and tensionlessly unwinds a sheet reel via drive means, with a feed unit which guides the sheet by means of spreaders and with minimal longitudinal tension and transports it in crease-free fashion, and also with a paste spot roller screen printer for applying a dispersion paste in a certain pattern and in a certain amount, and with a dryer through which the sheet is transportable on a conveyor belt, and also with a sintering chamber fitted with a needle chain. |
