METHOD AND DEVICE FOR THE PRODUCTION OF A WATER VAPOR PERMEABLE LAMINAR SHEET

摘要

A method and device for producing a water vapor permeable laminar sheet, including the steps of: a) feeding a laminar carrier sheet to a first roll and applying an adhesive onto one side of the carrier sheet at a first location in conveying direction of the carrier sheet, wherein the adhesive is a hot melt adhesive applied in a molten state; b) applying a water vapor permeable molten material onto that side of the carrier sheet provided with the adhesive at a second location in conveying direction located downstream from the first location; c) pressing the composite of carrier sheet, adhesive and water vapor permeable material in a rolling gap formed by the first roll and a second roll which cooperates with the first roll; d) cooling the pressed composite in conveying direction downstream the rolling gap and hauling the composite from the roll arrangement.

主权项

1. A method for the production of a water vapor permeable laminar sheet, wherein the method comprises the steps of:
a) feeding of a laminar carrier sheet to a first roll and application of an adhesive onto one side of the side of the carrier sheet at a first location in conveying direction of the carrier sheet, wherein the adhesive is a hot melt adhesive and is applied onto the carrier sheet in a molten state; b) application of a water vapor permeable molten material onto that side of the carrier sheet which is provided with the adhesive at a second location in conveying direction of the carrier sheet which is located downstream from the first location; c) pressing of the composite of carrier sheet, adhesive and water vapor permeable material in a rolling gap which is formed by the first roll and a second roll which cooperates with the first roll; d) cooling of the pressed composite of carrier sheet, adhesive and water vapor permeable material in conveying direction downstream the rolling gap and hauling of the composite from the roll arrangement.