WEAR-RESISTANT ADHESIVE TAPE

Abstract

A wear-resistant adhesive tape for wrapping cables in an automobiles. The tape is a textile support strip made of warp yarns and weft yarns and in which each of the yarns is made of polyester or polyamide with a yarn fineness of at least 40 dtex. An adhesive coating is provided on at least one face of the strip. The warp yarns are formed as multi-warp yarns or the weft yarns are formed as multi-weft yarns.

Claims

1. A wear-resistant adhesive tape for wrapping cables in an automobiles, wherein: the tape is a textile support strip made of warp yarns and weft yarns, each of the yarns is made of polyester or polyamide with a yarn fineness of at least 40 dtex, at least one face of the strip is provided with an adhesive coating, and the warp yarns are formed as multi-warp yarns or the weft yarns are formed as multi-weft yarns.

2. The tape defined in claim 1, wherein the textile support strip is composed of single warp yarns and multi-weft yarns, the multi-weft yarns each being composed of at least two individual yarns.

3. The tape defined in claim 2, wherein the single warp yarns have a yarn thickness of at least 200 dtex.

4. The tape defined in claim 2, wherein the single warp yarns are of polyamide.

5. The tape defined in claim 2, wherein the multi-weft yarns are double-weft yarns each having two individual yarns.

6. The tape defined in claim 5, wherein the individual yarns of each multi-weft yarn run parallel to and along the exact same path as each other, are not connected to each other, and are not wound or twisted around each other.

7. The tape defined in claim 2. wherein the individual yarns of the multi-weft yarns each have a yarn thickness of greater than 200 dtex.

7. The tape defined in claim 2, wherein each of the individual yarns of the multi-weft yarns has a yarn thickness of no more than 250 dtex.

9. The tape defined in claim 2, wherein the multi-weft yarns are made of polyamide.

10. The tape defined in claim 1, wherein 10 to 50 warp yarns/cm are provided in the textile support strip.

11. The tape defined in claim 1, wherein 10 to 80 weft yarns/cm are provided in the textile support strip.

12. The tape defined in claim 10, wherein the 10 to 80 weft yarns/cm corresponds to 5 to 40 double weft yarns/cm in the textile support strip.

13. The tape defined in claim 1, wherein a weight per unit area of the textile support strip is between 150 g/m.sup.2 and 250 g/m.sup.2.

14. The tape defined in claim 1, wherein the textile support strip consists of a single layer of fabric.

15. The tape defined in claim 1, wherein the adhesive coating is a self-adhesive pressure-sensitive adhesive coating applied to the one face of the textile support strip.

16. The tape defined in claim 15, wherein the adhesive coating is made from an acrylate-based adhesive.

Description

BRIEF DESCRIPTION OF THE DRAWING

[0024] The above and other objects, features, and advantages will become more readily apparent from the following description, reference being made to the accompanying drawing in which:

[0025] FIG. 1 is a simplified plan view of a detail of an adhesive tape according to the invention; and

[0026] FIG. 2 is an end view of the simplified detail shown in FIG. 1.

SPECIFIC DESCRIPTION OF THE INVENTION

[0027] As seen in FIGS. 1 and 2, a textile support tape in accordance with the invention is form of a multiplicity of parallel and transversely spaced warp filaments 12 into which are woven a plurality of longitudinally spaced multi-weft filaments 11. Each such multi-weft filament 11 is formed by a pair of separate weft filaments 11 that extend parallel to each other, are not connected to each other, and are not twisted or wound around each other. Both yarns 11 of each multi-weft yarn 11 follow the same transverse path across the strip, under and over the succeeding warp filaments 12 as clearly shown in FIGS. 1 and 2. One face of the tape thus formed is covered by a layer 13 of adhesive.

[0028] The tape of this invention generally contains from 10 warp yarns/cm to 50 warp yarns/cm. In most cases 20 warp yarns/cm has proven to be particularly expedient here. As for number of weft yarns in the textile support tape, 10 weft yarns per cm to 80 wefts per cm is recommended. If double weft yarns are used, this means that the textile support tape is provided with from 5 double weft yarns/cm to 40 double weft yarns/cm in this case. In fact, the 5 double weft yarns/cm corresponds to 10 individual weft yarns/cm, while 40 double weft yarns/cm corresponds to 80 individual weft yarns/cm if every single weft yarn is counted.

[0029] The weight per unit area of the textile support tape is generally between 150 g/m.sup.2 and 250 g/m.sup.2. Weights per unit area in the range of about 185 g/m.sup.2 are generally used here. In order to keep manufacturing costs particularly low, the textile support tape generally consists of a single layer of fabric. Furthermore, in addition to this single textile layer, there is only an adhesive coating 13 that is formed as a self-adhesive pressure-sensitive adhesive layer applied to one face to the textile support tape. The adhesive coating 13 in question is usually made from an acrylate-based adhesive. This can be done by known coating techniques such as die coating, curtain coating, etc. The specific weight per unit area of the adhesive coating 13 or of the pressure-sensitive adhesive on the textile support tape is generally in the range between 50 g/m.sup.2 and 200 g/m.sup.2.

[0030] All in all, it is thus possible to make a wear-resistant adhesive tape that satisfies at least abrasion class C according to LV 312 on a 5 mm mandrel and a 10 mm mandrel. As a rule, even abrasion class D is met. Also, depending on the configuration and selected yarn thickness for the warp yarns and weft yarns and on the number of individual parallel weft yarns in the execution of the respective multi-weft yarn, abrasion resistances of up to class E can also be achieved. All of this is achieved in consideration of an especially cost-effective construction. Moreover, the manual tearability of the wear-resistant adhesive tape according to the invention is still also maintained to a certain extent. Herein lie the fundamental advantages.