Linerless self-adhesive material
AssigneeRITRAMA S.p.A.
InventorTomas Federico Rink
Life of this patent
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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.
Claims17
Self-adhesive material comprising:
- a) a self-adhesive layer comprising a film made of plastic or paper material having a front surface and a surface, opposite the front one, wherein the surface opposite the front one is coated with a pressure-sensitive adhesive, PSA;
- and, in contact with the PSA, a
- b) a support layer (liner) comprising a film made of plastic material having a surface in contact with the PSA and another surface opposite to the surface in contact with the PSA, wherein the surface in contact with the PSA is coated with a non-stick material;
- wherein the said opposite surface to the one coated with the non-stick material of the film made of plastic material of the support layer, is coated with a thermo-adhesive;
- and
- wherein the plastic material of the self-adhesive layer is selected from the group consisting of polyethylene (PE), polypropylene (PP), polyesters, and mixtures thereof.
Linerless self-adhesive material comprising:
- a) a film made of plastic material, comprising a surface facing outwards coated with a non-stick material and a surface opposite the one facing outwards;
- b) a self-adhesive layer comprising a film made of plastic or paper material having a front surface and a surface, opposite the front one and facing outwards, coated with a pressure-sensitive adhesive, PSA;
- wherein said front surface of the film made of plastic or paper material of the self-adhesive layer and said opposite surface to the one coated with the non-stick material of the film made of plastic material, are in permanent contact through a thermo-adhesive;
- and
- wherein the plastic material of the self-adhesive layer is selected from the group consisting of polyethylene (PE), polypropylene (PP), polyesters, and mixtures thereof.
Self-adhesive material comprising:
- a) a self-adhesive layer comprising a film made of plastic or paper material having a front surface and a surface, opposite the front one, wherein the surface opposite the front one is coated with a pressure-sensitive adhesive, PSA;
- and, in contact with the PSA, a
- b) a support layer (liner) comprising a film made of plastic material having a surface in contact with the PSA and another surface opposite to the surface in contact with the PSA, wherein the surface in contact with the PSA is coated with a non-stick material;
- wherein the front surface of the film made of plastic or paper material of the self-adhesive layer is coated with a thermo-adhesive;
- wherein the plastic material of the self-adhesive layer is selected from the group consisting of polyethylene (PE), polypropylene (PP), polyesters, and mixtures thereof;
- wherein the opposite surface of the support layer to the one coated with the non-stick material is coated with a total or partial printing layer, comprising one or more layers of color
- wherein the support layer is transparent and made of polyethyleneterephthalate (PET) or polypropylene (PP);
- and
- wherein the opposite surface of the support layer to the one coated with the non-stick material is treated with a chemical and/or physical treatment which is capable of promoting adhesion of the printing.
Dependencies are inferred from the claim text.