JPH11116911A - Cloth adhesive tape for binding wire harness - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain an adhesive tape which is excellent in noise reducing property, fire resistance and insulation property and contains no halogens by using a polyester woven fabric as the base material, and applying an adhesive layer on one side of the base material, a resin layer on the other and a release agent layer on the resin layer. SOLUTION: The woven fabric is preferably constituted by a polyester warp of 30-50 deniers and a polyester weft of 80-120 deniers. The woven fabric has preferably a thickness of 0.04-0.12 mm. The adhesive tape has preferably a longitudinal tensile strength of 6-14 kgf/19 mm and an elongation of 12-23%. The adhesive layer is preferably a coating layer of an adhesive composition of a thickness of 0.06-0.14 mm whose base component is a natural rubber or a synthesized isoprene rubber to which a flame proofing agent or a fire resistant agent containing no halogen elements is added. The resin layer is preferably an embossed polyethylene layer of a thickness of 10-45 μm which is colored black with a carbon black.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cloth adhesive tape for bundling a wire harness used for bundling a wire harness, and more particularly to an inexpensive cloth adhesive tape for bundling a wire harness containing no halogen element.

[0002]

2. Description of the Related Art As a pressure-sensitive adhesive tape for binding a wire harness, a pressure-sensitive adhesive tape whose base material is mainly made of polyvinyl chloride has hitherto been used. In addition, from the viewpoint of improving the comfort of automobiles, the sound generated from the wire harness,
Adhesive tapes based on cotton cloth or acetate cloth have also been used for the purpose of reducing the generation of noise such as fricative noise.

[0003]

The pressure-sensitive adhesive tape whose base material is made of polyvinyl chloride is inexpensive, but generates dioxin when incinerated, and has many environmental problems. In addition, when using a pressure-sensitive adhesive tape made of polyvinyl chloride as the base material when binding the wire harness, the workability is good, but noise such as a tapping sound and a frictional sound cannot be suppressed.

Further, the adhesive tape based on cotton cloth and the adhesive tape based on acetate cloth disclosed in Japanese Utility Model Application Laid-Open No. 4-643 can suppress noise such as tapping sound and frictional sound. Poor in insulation and expensive.

As described above, in the prior art, there has been no inexpensive pressure-sensitive adhesive tape for binding wire harnesses, which is excellent in sound deadening property, flame retardancy and insulation properties and does not contain any halogen element.

The present invention has been made to solve the above-mentioned problems, and provides an inexpensive pressure-sensitive adhesive tape for bundling a wire harness which is excellent in sound deadening property, flame retardancy, insulation properties and does not contain any halogen element. The purpose is to:

[0007]

In order to achieve the above object, in the present invention, a pressure-sensitive adhesive layer is provided on one surface of a base material made of a polyester woven fabric, and a resin layer is provided on the other surface. A release agent layer is provided on the resin layer.

In this case, as preferable conditions, the polyester woven fabric has a warp yarn of 30 to 50 denier polyester yarn (tensile strength: 150 to 250 gf / line) and a weft yarn of 80 to 12 denier.
It is a polyester yarn of 0 denier (tensile strength: 380 to 460 gf / line). Further, the thickness of the woven fabric is 0.04 to 0.12 mm, and the tensile strength of the adhesive tape in the longitudinal direction is 6 to 14 kgf.
/ 19mm, elongation is 13-23%.

In this case, another preferable condition is that the pressure-sensitive adhesive layer is formed of a natural rubber or a synthetic isoprene rubber-based pressure-sensitive adhesive composition to which a flame retardant or a flame retardant containing no halogen element is added. Adhesive layer coated to 0.06 to 0.14 mm.

In this case, as another preferable condition, the resin layer is a polyethylene layer having a thickness of 10 to 45 μm and colored black with carbon black. The polyethylene film layer is embossed.

[0011] Incidentally, as an adhesive tape using a polyester woven fabric as a base material, there are those described in Japanese Utility Model Laid-Open No. 57-87079 and Japanese Utility Model No. 3005686, which are described in these publications. The pressure-sensitive adhesive tape is used for completely different purposes from the present application (for packaging and masking at the time of painting, respectively), in terms of the thickness and tensile strength of the polyester thread, the thickness and the tensile strength of the pressure-sensitive adhesive tape. In this respect, the present invention is different from the present invention.

[0012]

FIG. 1 is a schematic sectional view showing a part of a cloth adhesive tape for binding a wire harness according to the present invention. As shown in FIG. 1, a pressure-sensitive adhesive layer 12 is provided on one side of a base material 11 made of a polyester woven fabric.
The resin layer 13 is provided on the surface opposite to the surface on which the pressure-sensitive adhesive layer 12 is provided, and the release agent layer 14 is provided on the resin layer 13.

In this adhesive tape for binding a wire harness, since the base material 11 is made of a polyester woven fabric, it has excellent sound-absorbing properties and insulation properties, is less expensive than an adhesive tape made of a cotton base material, and has a lower cost. Unlike the adhesive tape made of polyvinyl chloride, it is excellent in sound deadening and abrasion resistance.
In addition, no dioxin is generated during incineration.

[0014] In addition, in this cloth adhesive tape for binding a wire harness, as preferable conditions, 30 to 50 denier polyester yarn is used for the warp constituting the polyester woven fabric of the base material 11, and 80 to 120 denier polyester is used for the weft. Each thread is used, and the tensile strength in the longitudinal direction of the adhesive tape is 6 to 14 kgf / 19 mm and the elongation is 13 to 23%, so it has sufficient strength for binding wire harnesses and has excellent hand-cutting properties. I have. Here, being excellent in hand-cutting property means that the adhesive tape is easily cut by hand in a direction nearly perpendicular to the longitudinal direction.

In this adhesive tape for binding a wire harness, if a flame retardant or a flame retardant containing no halogen element is added to the adhesive layer 12, the entire adhesive tape becomes difficult to burn, and Dioxin is not generated during incineration.

Further, in the cloth adhesive tape for binding a wire harness, a resin layer 13 is provided on a surface of the substrate 11 opposite to the surface on which the adhesive layer 12 is provided, and the resin layer 1
Since the release agent layer 14 is provided on 3, the cloth adhesive tape for binding a wire harness which is wound in a cylindrical shape can be easily unraveled, so that workability is good.

Further, in this adhesive tape for binding a wire harness, when the thickness of the base material 11 is 0.04 to 0.12 mm and the thickness of the adhesive layer is 0.06 to 0.14 mm, the length can be easily increased, The size of the state in which the cloth adhesive tape for binding the wire harness is wound in a cylindrical shape does not become extremely large.

In this adhesive tape for binding a wire harness, if the resin layer 13 on the base material 11 is colored black and embossed to give fine irregularities on the surface, light reflection can be suppressed. However, the wire harness bound using this adhesive tape becomes less noticeable.

[0019]

【Example】

Example 1 A composition comprising 100 parts by weight of natural rubber, 100 parts by weight of tackifying resin, 200 parts by weight of calcium bicarbonate, 30 parts by weight of process oil, 2 parts by weight of an antioxidant, and 100 parts by weight of a flame retardant is kneaded using a kneader. Thus, an adhesive composition was prepared. Next,
A resin layer 1 is formed on one side of a substrate 11 made of a polyester woven fabric.
3. A release agent layer 14 is provided on the resin layer 13, and the pressure-sensitive adhesive composition is applied to the other surface of the base material 11 so as to have a paste thickness of about 0.11 mm, and a pressure-sensitive adhesive layer 12 is provided. A cloth adhesive tape for harness binding was produced.

The adhesive tape for binding the wire harness
The length can be increased to 300 m or more, and the substrate 11 did not crack even when unwound from a cylindrically wound material. Here, the layer cracking means that the pressure-sensitive adhesive layer 12 is
Means that the adhesive is peeled off and adheres to the release agent layer 14 one turn below which was in contact with the wound state.

Example 2 A composition comprising 100 parts by weight of synthetic isoprene rubber, 100 parts by weight of a tackifier resin, 200 parts by weight of calcium bicarbonate, 30 parts by weight of process oil, 2 parts by weight of an antioxidant, and 100 parts by weight of a flame retardant was prepared. The pressure-sensitive adhesive composition was prepared by kneading using a kneader.

Next, the base material 1 made of a polyester woven fabric
1, a resin layer 13 is provided on one side, and a release agent layer 14 is provided on the resin layer 13.
The pressure-sensitive adhesive layer 12 was provided by coating so as to have a thickness of 0.11 mm, and a cloth adhesive tape for binding a wire harness was produced.

Comparative Example 1 A composition comprising 100 parts by weight of natural rubber, 100 parts by weight of tackifying resin, 200 parts by weight of calcium bicarbonate, 30 parts by weight of process oil, 2 parts by weight of antioxidant, and 100 parts by weight of flame retardant was kneaded. To obtain a pressure-sensitive adhesive composition.

Next, a resin layer 13 is provided on one surface of a base material 11 made of a woven cotton cloth, and a release agent layer 14 is provided on the resin layer 13. The pressure-sensitive adhesive layer 12 was provided by coating so as to have a thickness of 0.11 mm, and a cloth adhesive tape for binding a wire harness was produced.

With respect to Example 1, Example 2, Comparative Example 1, and the vinyl tape, the physical properties of the cloth adhesive tape for binding a wire harness were evaluated. In this case, as a method for evaluating physical properties, the adhesive strength was determined according to JIS Z0237. That is, after a test piece having a width of 25 mm was pressure-bonded to the test plate, the average value of the force when the test piece was peeled off the test plate at a speed of about 300 mm per minute was defined as the adhesive force. The tack is JIS Z 0237 (inclined ball tack method, 1/32
ボ ー ル 32/32 inch diameter ball, indicated by ball number). That is, the test piece is set with the adhesive side up on an inclined plate having an inclination angle of 30 degrees, a polyester film for running is adhered to a predetermined position on the adhesive side of the test piece, and the running length is set to 100 mm and high carbon chromium is set. Roll balls of different sizes made of bearing steel on the adhesive surface of the test piece,
This was performed by finding the largest ball that stopped in the measuring section having a length of 100 mm of the adhesive surface of the test piece. Note that the ball number is a value obtained by multiplying the diameter of a ball in inches by 32 times.

The insulation strength (breakdown voltage, withstand voltage) test of the cloth adhesive tape for binding a wire harness was conducted according to JI.
Performed with SC 2110.

The results of the above tests are shown in Table 1 together with the price of the adhesive tape.

[0028]

[Table 1]

[0029] Comparing Example 1 and Example 2 with Comparative Example 1 based on the test results shown in Table 1, all the test items except that only the sound deadening properties were good. It can be seen that the example is superior to the comparative example, and that the example is also cheaper in price than the comparative example. Also, from Table 1, it can be seen that the vinyl tape is inexpensive and has excellent electrical insulation properties, but is inferior to the examples in sound deadening properties and hand-cutting properties.

[0030]

As described above, by implementing the present invention, it is possible to provide an inexpensive pressure-sensitive adhesive tape for binding a wire harness, which is excellent in sound deadening property, flame retardancy and insulating properties and does not contain any halogen element. it can.

[Brief description of the drawings]

FIG. 1 is a schematic sectional view showing a part of a pressure-sensitive adhesive tape for binding a wire harness according to the present invention.

[Explanation of symbols]

11: base material, 12: adhesive layer, 13: resin layer, 14: release agent layer.

Claims (4)

[Claims] The present invention is characterized in that a polyester woven fabric is used as a base material, an adhesive layer is provided on one surface of the base material, a resin layer is provided on the other surface, and a release agent layer is provided on the resin layer. Cloth adhesive tape for binding wire harnesses. 2. The polyester woven fabric according to claim 2, wherein the warp comprises 30 threads.
~ 50 denier polyester yarn, weft 80 ~ 120
It is a denier polyester yarn, and the thickness of the woven fabric is 0.04
2. The wire harness tie according to claim 1, wherein the adhesive tape has a tensile strength in a longitudinal direction of 6 to 14 kgf / 19 mm and an elongation of 13 to 23%. Cloth adhesive tape. 3. The pressure-sensitive adhesive layer having a thickness of 0.06 to 0.14 mm based on natural rubber or synthetic isoprene rubber and containing a flame retardant or a flame retardant containing no halogen element. The cloth adhesive tape for binding a wire harness according to claim 1. 4. The cloth for binding a wire harness according to claim 1, wherein the resin layer is a polyethylene layer having a thickness of 10 to 45 μm, which is colored black with carbon black and embossed. Adhesive tape.