Tape system with a longitudinal filament for slitting film
Assignee3M Innovative Properties Company
InventorGarry Cyrille Alfred VanDenBerghe
Life of this patent
Estimating the term…
Abstract
A vehicle is wrapped by an adhesive film which is then slit by applying first tape to the vehicle having a longitudinally extending filament carried by the tape at a position spaced from the side edges. A second tape is applied over the film at the first tape body so as to bridge to each side of the filament and pulling the filament so as to tear through the film and the first ad second tapes body with the second tape applying a force to the film acting to reduce tendency of the film to pull away from the object during the cutting by the filament as the filament is pulled.
Claims20
A tape system for cutting a film comprising:
- a first tape body of an extensible material having a front surface, a rear surface, a first longitudinal side edge and a second longitudinal side edge, the first tape body comprising a first and a second substrate;
- the first substrate layer overlaying the second substrate, and laminated by an adhesive to the second substrate;
- the first tape body having a longitudinally extending filament laminated between the first and second substrates and carried thereby;
- the first tape body having an adhesive on the rear surface for attachment to an object;
- the front surface of the first tape body being free from adhesive;
- a second tape body of an extensible material having a front surface, a rear surface, a first longitudinal side edge and a second longitudinal side edge;
- the second tape body having an adhesive on the rear surface for attachment to the film when applied all over the first tape body;
- the second tape body having a width arranged such that the second tape body when applied over the film at the first tape body bridges to each side of the filament on the first tape body underneath the film;
- wherein the filament and the second tape body are arranged such that the filament when pulled tears through the second tape body along the length of the second tape body at its position at the second tape body spaced from both side edges.
A method for cutting a film when applied by an adhesive to an object comprising:
- applying first tape body to the object;
- the first tape body comprising an extensible material having a front surface, a rear surface, a first longitudinal side edge and a second longitudinal side edge, the first tape body comprising a first and a second substrate;
- the first substrate layer overlaying the second substrate, and laminated by an adhesive to the second substrate;
- the first tape body having a longitudinally extending filament laminated between the first and second substrates and carried thereby;
- the first tape body having an adhesive on the rear surface for attachment to the object;
- the front surface of the first tape body being free from adhesive and having a release characteristic relative to the adhesive;
- applying a second tape body over the film at the first tape body so as to bridge to each side of the filament of the first tape body underneath the film;
- the second tape body comprising an extensible material having a front surface, a rear surface, a second longitudinal side edge and a second longitudinal side edge;
- the second tape body having an adhesive on the rear surface for attachment to the film;
- and pulling the filament so as to tear through the film and the second tape body along the length of the second tape body at its position on the second tape body spaced from both side edges.
Dependencies are inferred from the claim text.