Adhesive tape for jacketing elongate material such as especially cable looms and jacketing method

Abstract

An adhesive tape, especially for jacketing elongate material such as cable looms in a motor vehicle, having a carrier material which is provided at least on one side with an adhesive coating, characterized in that the carrier material consists of a laminate, the laminate being formed from a textile carrier in the form of a staple fiber web or a spunbonded web and from a film which is located on the underside of the textile carrier and is made preferably of polyolefins, TPU or PVC such as plasticized PVC, more preferably of polyolefins, the film having a thickness of 15 to 80 m.

Claims

1. An adhesive tape consisting of a carrier material and an adhesive coating on at least one side of the carrier material, wherein the carrier material consists of a laminate consisting of: (i) a textile carrier in the form of a web selected from the group consisting of a spunbonded web, a wet-laid web, a needle-punched web, and a water-jet web; (ii) a solid film; and (iii) a laminating adhesive joining the textile carrier and the solid film, wherein the textile carrier has a basis weight of 15 to 60 g/m.sup.2, wherein the film has a thickness of 15 to 80 m, and wherein the film is on an underside of the textile carrier and positioned between the textile carrier and said adhesive coating.

2. The adhesive tape according to claim 1, wherein the adhesive coating is on a free side of the film.

3. The adhesive tape according to claim 2, wherein the web of textile carrier is consolidated at least one of mechanically, thermally and/or chemically.

4. The adhesive tape according to claim 1, wherein the laminate consists of the web of the textile carrier, the laminating adhesive and a multilayer PE film.

5. The adhesive tape according to claim 1, wherein the width of the carrier material is between 9 to 38 mm.

6. The adhesive tape according to claim 1, wherein the carrier material comprises at least polyester and has a basis weight of 15 to 40 g/m.sup.2 or 25 to 50 g/m.sup.2.

7. The adhesive tape according to claim 1, wherein the coating of adhesive comprises an adhesive based on natural rubber, synthetic rubber, acrylate, or silicone.

8. A method of jacketing elongate material, comprising passing the adhesive tape according to claim 1 in a helical line around the elongate material.

9. A method of jacketing elongate material, comprising wrapping the adhesive tape according to claim 1 in an axial direction around the elongate material.

10. An elongate material jacketed with the adhesive tape according to claim 1.

11. The elongate material according to claim 10, which is a cable loom.

12. The adhesive tape according to claim 1, wherein the film comprises a first polyethylene layer, a second polyethylene layer and a third polyethylene layer, wherein at least one of the first and third polyethylene layers comprises one or more anti-blocking agents.

13. The adhesive tape according to claim 12, wherein both of the first and third polyethylene layers comprise the one or more anti-blocking agents.

14. The adhesive tape according to claim 13, wherein the second polyethylene layer is located between the first and third polyethylene layers and comprises carbon black.

15. The adhesive tape according to claim 1, wherein a polyolefin-based thermoplastic laminating adhesive joins the film and the web together, and further wherein a coatweight of the laminating adhesive is 3 to 15 g/m.sup.2.

16. The adhesive tape according to claim 15, wherein a coatweight of the laminating adhesive is 5 to 10 g/m.sup.2.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) FIG. 1 shows the adhesive tape in a lateral section;

(2) FIG. 2 shows one section of a cable loom which is composed of a bundling of individual cables and is jacketed with the adhesive tape of the invention.

(3) FIG. 1 shows, in section in the transverse direction (cross-cut), the adhesive tape, consisting of a carrier material 10, on one side of which a layer of a self-adhesive coating 12 is applied.

(4) The carrier material 10 consists of a laminate, which is formed from a textile carrier 1 and from a film 3 located on the underside of the textile carrier 1.

(5) Located between textile carrier 1 and film 3 is a layer of a laminating adhesive 2.

(6) FIG. 2 shows one section of a cable loom which is composed of a bundling of individual cables 7 and is jacketed with the adhesive tape of the invention. The adhesive tape is passed in a spiral motion around the cable harness.

(7) The section of cable harness shown has two turns, I and II, of the adhesive tape. Further turns would extend towards the left, but are not shown here.

(8) Present on the adhesive coating is a stripe 5 of the liner, thus producing an adhesive stripe 6 which extends in the longitudinal direction of the tape. Non-adhesive regions 11, 21, 23 of the adhesive tape alternate with adhesive regions 12, 22, 24. (In contrast to the exposed adhesive 12, the sections 22 and 24 are not visible from the outside, which is why the denser shading has been selected to illustrate them.)

(9) The cable harness is jacketed such that the adhesive stripe 6 adheres fully on the adhesive tape. Sticking to the cables 7 is precluded.

EXAMPLES

Example 1

(10) Textile carrier: Wet-laid web Basis weight: 35 g/m.sup.2 Composition: 22% by weight polyester, 26.5% by weight cellulose, 51.5% by weight binder Laminating adhesive: Acrylate adhesive Film: 70 m 3-layer PE film from Nordenia as described in detail above Pressure-sensitive adhesive: Acrylate adhesive Key features: Damping class B Temperature class T3 (as per Ford and LV 312) Very good media resistance Very good hand-tearability

Example 2

(11) Textile carrier: Spunbond web Basis weight: 34 g/m.sup.2 Composition: 100% by weight polyester Laminating adhesive: Acrylate adhesive Film: 70 m 3-layer PE film from Nordenia as described in detail above Pressure-sensitive adhesive: Acrylate adhesive Key features: Damping class B Temperature class T3 (as per Ford and LV 312) Very good media resistance Very good hand-tearability

Example 3

(12) Textile carrier: Needle-punched web Basis weight: 40 g/m.sup.2 Composition: 100% by weight polyester Laminating adhesive: Acrylate adhesive Film: 70 m 3-layer PE film from Nordenia as described in detail above Pressure-sensitive adhesive: Acrylate adhesive Key features: Damping class C Temperature class T3 (as per Ford and LV 312) Very good media resistance Good hand-tearability