TEAR PROPAGATION-RESISTANT ADHESIVE TAPE

Abstract

Adhesive tape having a backing material applied to at least one side of which is an adhesive, in particular a pressure-sensitive adhesive, the backing material being composed of at least one film, characterized in that the film has at least one score extending in the machine direction of the adhesive tape.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

The figures described below are used to elucidate the invention in more detail, without any intention to restrict it unnecessarily as a result.

FIG. 1 a shows the adhesive tape, looking towards the film, the scores having been made continuously;

FIG. 1 b shows the adhesive tape, looking towards the film, the scores having regular breaks;

FIG. 2 shows the adhesive tape of FIG. 1a, in a section transverse to the machine direction of the adhesive tape;

FIG. 3 shows the scoring process for producing the adhesive tape; and

FIG. 4 shows the components needed for implementing the scoring process.

Claims

1. An adhesive tape comprising a backing material and an adhesive applied to at least one side of the backing material, the backing material being composed of at least one film, wherein the film has at least one score extending in a machine direction of the adhesive tape.

2. Adhesive tape according to claim 1, wherein the score extends over at least one fifth of a total thickness of the backing material.

3. Adhesive tape according to claim 1, wherein the score is made as a slit which extends over an entire thickness of the backing material.

4. Adhesive tape according to claim 3, wherein the score of the slit is made as a continuous or as a broken line.

5. Adhesive tape according to claim 1, wherein the backing material has two scores or slits, of which one in each case is disposed close to one of two side edges of the backing material.

6. Adhesive tape according to claim 1, wherein the score begins on a surface of the backing material to which the adhesive has been applied, so that an exposed surface of the backing material is undamaged.

7. Adhesive tape according to claim 1, wherein the film is composed of BOPP, MOPP, PP, PE, PET, PA, PU, PVC or polyester and/or has a thickness of 5 to 50 pm.

8. Adhesive tape according to claim 7, wherein the film is composed of polyesters, PET, MOPP or U-PVC.

9. Adhesive tape according to claim 1, wherein the adhesive is applied to the backing material in an amount between 15 to 60 g/m2.

10. Adhesive tape according to claim 1, wherein the backing material exhibits a strength of at least 250 N/mm2 for 60 pm thickness.

11. A method for bundling, packing or palletizing which comprises bundling, packing or palletizing with an adhesive tape according to claim 1.

12. A method of reinforcing paper, corrugated board or solid board comprising applying an adhesive tape according to claim 1 to said paper, corrugated board or solid board.