Linerless self-adhesive material
AssigneeRITRAMA S.p.A.
InventorTomas Federico Rink
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Abstract
The invention concerns a linerless self-adhesive material obtained starting from a self-adhesive material with a liner, by means of a process that comprises the delamination of the liner from a self-adhesive layer, activation of the liner or self-adhesive layer, transferral of the liner over the self-adhesive layer and re-lamination of the two components so as to produce the linerless self-adhesive material. The liner or the self-adhesive layer is coated with a thermo-adhesive that allows for permanent lamination of the liner located on the self-adhesive layer.
Claims7
Process for producing a linerless self-adhesive material comprising the steps of:
- a) providing a self-adhesive material having a self-adhesive layer and a liner, said liner comprising a film made of plastic material and said self-adhesive layer comprising a film made of plastic or paper material having a front surface, wherein at least one of either the film made of plastic material of the liner or the front surface of the self-adhesive layer has a thermo-adhesive coating;
- b) de-laminating the liner from the self-adhesive layer;
- c) activating the thermo-adhesive through heating;
- d) transferring the liner onto the self-adhesive layer so that the thermo-adhesive is located between the self-adhesive layer and the liner;
- and
- e) re-laminating the liner with the self-adhesive layer;
- wherein said transfer of the liner onto the self-adhesive layer is performed before or after said activation of the self-adhesive layer and/or said activation is performed before, after or during the re-lamination of the liner with the self-adhesive layer.
Dependencies are inferred from the claim text.