Apparatus and process for cutting adhesive labels
A method and apparatus are provided for die cutting label stock comprising a facestock, an adhesive and optionally a liner to form labels where a liner of the linered pressure sensitive adhesive label stock may be a thin or ultrathin liner.
1. A method of forming a cut adhesive backed label on a liner, comprising:
providing a web of label stock comprising a facestock, a pressure sensitive adhesive layer adhered to the facestock and a release liner adhered to the adhesive layer, wherein the release liner has a thickness less than or equal to 0.00626 mm;
feeding the web of label stock to a cutting station to form a plurality of cut adhesive backed labels and a surrounding matrix on the release liner, wherein the cutting station comprises a die and an anvil, and the anvil comprises an elastic, polymeric material;
stripping the matrix from the cut adhesive backed labels and matrix on the liner; and
winding the cut adhesive backed labels on the liner into a roll.
2. The method of claim 1 wherein the distance between the die and the anvil is controlled to prevent cutting the release liner.
3. The method of claim 1 , wherein the facestock comprises paper or a polymeric film.
4. The method of claim 1 , wherein the facestock comprises more than one polymer film layer.
5. The method of claim 4 , wherein at least two of the more than one polymer film layers are separated by an internal adhesive layer.
6. The method of claim 1 , wherein a surface of the facestock is corona treated, flame treated, or top coat treated.
7. The method of claim 1 , wherein the facestock comprises printed information.
8. A method of forming a cut adhesive backed label on a liner, comprising:
providing a web of label stock comprising a facestock, a pressure sensitive adhesive layer adhered to the facestock and a release liner adhered to the adhesive layer, wherein the release liner has a thickness less than or equal to 0.00626 mm;
feeding the web of label stock to a cutting station to form a plurality of cut adhesive backed labels and a surrounding matrix on the release liner, wherein the cutting station comprises a die and an anvil, and the die is a rotary die and a die bridge provides an automatic adjustment of the force applied to each side of the die to a set point force;
stripping the matrix from the cut adhesive backed labels and matrix on the liner; and
winding the cut adhesive backed labels on the liner into a roll.
9. The method of claim 8 , wherein the facestock comprises paper or a polymeric film.
10. The method of claim 8 , wherein the facestock comprises more than one polymer film layer.
11. The method of claim 10 , wherein at least two of the more than one polymer film layers are separated by an internal adhesive layer.
12. The method of claim 8 , wherein a surface of the facestock is corona treated, flame treated, or top coat treated.
13. The method of claim 8 , wherein the facestock comprises printed information.
14. A method of forming a cut adhesive backed label on a liner, comprising:
providing a web of label stock comprising a facestock, a pressure sensitive adhesive layer adhered to the facestock and a release liner adhered to the adhesive layer, wherein the release liner has a thickness less than or equal to 0.00626 mm;
feeding the web of label stock to a cutting station to form a plurality of cut adhesive backed labels and a surrounding matrix on the release liner, wherein the cutting station comprises a die and an anvil, and the distance between the die and the anvil is controlled to prevent cutting the release liner, wherein the anvil comprises an elastic, polymeric material;
stripping the matrix from the cut adhesive backed labels and matrix on the liner; and
winding the cut adhesive backed labels on the liner into a roll.
15. The method of claim 14 wherein the distance between the die and the anvil is controlled with an electrostatic controller.
16. The method of claim 14 , wherein the facestock comprises paper or a polymeric film.
17. The method of claim 14 , wherein the facestock comprises more than one polymer film layer.
18. The method of claim 17 , wherein at least two of the more than one polymer film layers are separated by an internal adhesive layer.
19. The method of claim 14 , wherein a surface of the facestock is corona treated, flame treated, or top coat treated.
20. The method of claim 14 , wherein the facestock comprises printed information.