Method for producing an adhesive tape with a protruding liner

摘要

A process for production of a crosswound long roll of an at least single-side-adhesive adhesive tape in which at least one adhesive side of the adhesive tape has been covered with a liner, in the form of an Archimedean spiral. The process releasably fixes a core on an axle, wherein the adhesive tape covered with the liner is wound on to the core, contacts a pressure roll with a curved surface of the core or with the adhesive tape which has been covered with the liner and already wound on the core, in such a way as to give a nip between pressure roll and curved surface of the core or adhesive tape covered with the liner, where core and pressure roll rotate in opposite directions. Further, the process unwinding the liner from a liner roll, places the liner on to the at least one open adhesive side of the adhesive tape which is guided on the pressure roll in the direction of the nip, and guides a laminate made of adhesive tape and liner on the pressure roll into the nip.

主权项

1. A process for production of a crosswound long roll of an at least single-side-adhesive adhesive tape, wherein at least one adhesive side of the adhesive tape has been covered with a liner, wherein the crosswound long roll is in the form of an Archimedean spiral, the process comprising
releasably fixing a core on an axle, wherein adhesive tape covered with the liner is wound on to the core, fastening a liner roll, a guide sleeve and a pressure roll to a movable lever, wherein cylindrical bodies of the guide sleeve and the liner and pressure rolls, when viewed from above, are parallel with respect to each other and co-planar defining a single plane, contacting the pressure roll with a curved surface of the core or with the adhesive tape which has been covered with the liner and already wound on the core, in such a way as to give a nip between the pressure roll and the curved surface of the core or the adhesive tape covered with the liner, wherein the core and the pressure roll rotate in opposite directions, unwinding the liner from the liner roll, feeding the adhesive tape into the single plane onto the guide sleeve between the liner and pressure rolls, wherein the adhesive tape is fed to the guide sleeve at an angle with respect to the single plane defined by the parallel and co-planar liner roll, guide sleeve and pressure roll, placing the liner onto the at least one open adhesive side of the adhesive tape which is guided on the pressure roll in the direction of the nip, guiding a laminate made of the adhesive tape and the liner on the pressure roll into the nip, and moving the lever, with the guide sleeve and the liner and pressure rolls, in an axial direction with respect to the core while winding up the adhesive tape covered with the liner onto the core, wherein the liner is wider than the adhesive tape, based in each case on the transverse direction of the liner and the adhesive tape, and is laminated on to the adhesive tape such that the liner protrudes at both edges of the adhesive tape.