Cloth-based adhesive tape made of UV-cured hot-melt pressure-sensitive adhesive for automobile wire harness

Abstract

The utility model relates to the technical field of cloth-based adhesive tapes, in particular to a cloth-based adhesive tape made of UV (ultraviolet) curing hot-melt pressure-sensitive adhesive for automobile wire harnesses, which comprises a cloth-based adhesive tape main body, an adhesive tape support is mounted in the cloth-based adhesive tape main body, and the cloth-based adhesive tape main body is wound on the outer surface of the adhesive tape support layer by layer. The section of the adhesive tape support is of an I-shaped structure, the cloth-based adhesive tape body comprises wear-resistant particles, a wear-resistant layer, a flame-retardant layer, a non-woven fabric base layer and a pressure-sensitive adhesive layer which are sequentially distributed from top to bottom, the wear-resistant particles are evenly distributed on the top of the wear-resistant layer, and the wear-resistant layer, the flame-retardant layer and the non-woven fabric base layer are bonded through glue. The pressure-sensitive adhesive layer is uniformly coated at the bottom of the non-woven fabric base layer. According to the cloth-based adhesive tape, the wear-resistant layer and the flame-retardant layer are additionally arranged on the non-woven fabric base layer, so that the flame-retardant property and the wear-resistant property of the cloth-based adhesive tape can be improved, and the requirements of engine cabins of pure electric vehicles and plug-in hybrid vehicles can be met.

Description

Technical Field

[0001] The utility model relates to the technical field of cloth-based adhesive tapes, in particular to a cloth-based adhesive tape made of UV-curing hot-melt pressure-sensitive adhesive for automobile wiring harnesses. Background Art

[0002] Tape plays the role of bundling, wear resistance, temperature resistance, marking and other functions in the wiring harness. It is the most widely used type of automotive wiring harness wrapping material. The commonly used automotive wiring harness tapes are generally divided into PVC tape, flannel tape, cloth-based tape and sponge tape. Among them, fiber cloth-based tape is used for high-temperature winding of automotive wiring harnesses. Through overlapping and spiral winding, smooth, durable and flexible automotive wiring harnesses can be obtained. It is composed of high-quality cotton fiber cloth and strong rubber-type pressure-sensitive adhesive. It has high viscosity, no hazardous substances, can be torn by hand, has good flexibility, and is suitable for machine and manual use.

[0003] The patent specification with the announcement number CN104927697B discloses a new environmentally friendly, heat-resistant and wear-resistant cloth-based adhesive tape and its manufacturing technology using ultraviolet (UV) curing hot melt pressure-sensitive adhesive. This pressure-sensitive adhesive tape is made by directly coating a new UV curing hot melt pressure-sensitive adhesive on a polyester cloth or non-woven fabric substrate using a hot melt coating machine equipped with a UV lamp and cross-linking and curing the pressure-sensitive adhesive by UV irradiation. The UV curing hot melt pressure-sensitive adhesive is prepared by heating and blending a block copolymer thermoplastic elastomer with a tackifying resin, a softener, an olefin monomer containing a long-chain alkyl group, and auxiliary agents such as a photoinitiator and an antioxidant in a certain proportion. This cloth-based adhesive tape not only has excellent mechanical properties, bonding properties, high temperature resistance and anti-friction properties, but also has a low hot melt coating temperature, a simple manufacturing process, and no environmental pollution. It is suitable for the wrapping and bundling of cable bundles in different parts of the automobile body, especially it can meet the use requirements on the high temperature resistant parts of the internal engine of the automobile, and the long-term temperature resistance grade reaches 125°C.

[0004] However, in the implementation of relevant technologies, it was found that the pressure-sensitive adhesive tape of the above design has the following problems: since the pressure-sensitive adhesive tape is made of a polyester cloth substrate or a non-woven fabric substrate, and the functionality of this cloth substrate is relatively low, the pressure-sensitive adhesive tape originally used in the engine compartment of a fuel vehicle has a high requirement for temperature resistance. However, with the current market demand for pure electric vehicles and plug-in hybrid vehicles, the pressure-sensitive adhesive tape needs to have higher flame retardancy and wear resistance requirements. In view of this, a cloth-based adhesive tape made of UV-curable hot-melt pressure-sensitive adhesive for automotive wiring harnesses is provided to overcome the above-mentioned defects. Utility Model Content

[0005] The utility model aims to solve the shortcomings in the prior art and provides a cloth-based adhesive tape made of UV-curing hot-melt pressure-sensitive adhesive for automobile wiring harnesses.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a cloth-based adhesive tape made of UV-curing hot-melt pressure-sensitive adhesive for automotive wiring harnesses, comprising a cloth-based adhesive tape body, a tape holder is installed inside the cloth-based adhesive tape body, and the cloth-based adhesive tape body is layered and wound around the outer surface of the tape holder, the cross-section of the tape holder is an I-shaped structure, the tape holder is used to roll up the cloth-based adhesive tape body, and the cloth-based adhesive tape body comprises wear-resistant particles, a wear-resistant layer, a flame-retardant layer, a non-woven fabric base, which are sequentially distributed from top to bottom. The wear-resistant layer and the pressure-sensitive adhesive layer are uniformly distributed on the top of the wear-resistant layer, and the wear-resistant layer, the flame-retardant layer and the non-woven fabric base layer are bonded by glue, the pressure-sensitive adhesive layer is uniformly coated on the bottom of the non-woven fabric base layer, and the pressure-sensitive adhesive layer made by UV curing hot melt is used as the bonding layer of the cloth-based adhesive tape, which improves the high temperature resistance of the cloth-based adhesive tape, and adding a wear-resistant layer and a flame-retardant layer above the non-woven fabric base layer can further improve the flame retardancy and wear resistance of the cloth-based adhesive tape, thereby meeting the needs of the engine compartment of pure electric vehicles and plug-in hybrid vehicles.

[0007] As a further description of the above technical solution: the cloth-based adhesive tape body is provided with pressing grooves inside, and the pressing grooves are evenly distributed along the surface of the cloth-based adhesive tape body at equal intervals, and the pressing grooves run through the cloth-based adhesive tape body. The cloth-based adhesive tape body can be easily disconnected through the provided pressing grooves, and the cloth-based adhesive tape body can be cut without using a knife.

[0008] As a further description of the above technical solution: the wear-resistant layer is made of silicone material, and the wear-resistant layer of silicone material combined with wear-resistant particles can improve the wear resistance of the cloth-based adhesive tape body and play a waterproof role.

[0009] As a further description of the above technical solution: the flame retardant layer is made of PET material, which has good flame retardancy.

[0010] As a further description of the above technical solution: an annular groove is opened on the top of the tape holder, and a rotating rod is installed inside the annular groove, an embedded head is fixed at the bottom of the rotating rod, and an L-shaped support rod is fixed on the top of the rotating rod, and the support rod can be rotated on the side of the tape holder through the rotating rod.

[0011] As a further description of the above technical solution: a limiting groove is provided inside one end of the support rod close to the cloth-based adhesive tape body, and the cloth-based adhesive tape body passes through the inside of the limiting groove. After the end of the cloth-based adhesive tape body is pulled apart, the support rod can be driven to rotate, so that the end of the cloth-based adhesive tape body can be found according to the position of the support rod, which serves as an identification for subsequent use.

[0012] As a further description of the above technical solution: a plurality of convex points are arranged on the surface of the embedding head, and the rotating rod is rotated in the annular groove through the embedding head, and the convex points on the embedding head can increase the friction between the embedding head and the annular groove.

[0013] The utility model has the following beneficial effects:

[0014] The utility model designs a cloth-based adhesive tape made of UV-curing hot-melt pressure-sensitive adhesive for automotive wiring harnesses. By adding a wear-resistant layer and a flame-retardant layer on a non-woven fabric base layer, the flame-retardant and wear-resistant properties of the cloth-based adhesive tape can be improved, thereby meeting the needs of the engine compartments of pure electric vehicles and plug-in hybrid vehicles. In addition, the pressure-sensitive adhesive layer made of UV-curing hot-melt at the bottom of the non-woven fabric base layer is a bonding layer, which has higher high temperature resistance.

[0015] The utility model designs a cloth-based adhesive tape made of UV-curing hot-melt pressure-sensitive adhesive for automobile wiring harnesses. By adding a rotatable support rod on a tape bracket, when the end of the cloth-based adhesive tape body is pulled apart, the support rod can be driven to rotate. After the cloth-based adhesive tape body is torn off, the end position of the cloth-based adhesive tape body can be quickly determined by the position of the support rod when it is used next time. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the embedding head of the utility model;

[0018] Figure 3 This is a schematic structural diagram of the main body of the cloth-based adhesive tape of the utility model;

[0019] Figure 4 for Figure 3 Enlarged view of point A in the middle.

[0020] Legend:

[0021] 1. Cloth-based adhesive tape body; 101. Wear-resistant particles; 102. Wear-resistant layer; 103. Flame-retardant layer; 104. Non-woven fabric base layer; 105. Pressure-sensitive adhesive layer; 2. Tape holder; 3. Ring groove; 4. Rotating rod; 5. Support rod; 6. Limiting groove; 7. Embedding head; 8. Pressing groove. DETAILED DESCRIPTION

[0022] Reference Figure 1-4The utility model provides a cloth-based adhesive tape made of UV-curable hot-melt pressure-sensitive adhesive for automobile wiring harnesses: comprising a cloth-based adhesive tape body 1, a tape holder 2 is installed inside the cloth-based adhesive tape body 1, and the cloth-based adhesive tape body 1 is wound layer by layer on the outer surface of the tape holder 2, the cross-section of the tape holder 2 is an I-shaped structure, and the tape holder 2 is used to roll up the cloth-based adhesive tape body 1, the cloth-based adhesive tape body 1 comprises wear-resistant particles 101, a wear-resistant layer 102, a flame-retardant layer 103, a non-woven fabric base layer 104 and a pressure-sensitive adhesive layer 105, which are sequentially distributed from top to bottom, the wear-resistant particles 10 1 is evenly distributed on the top of the wear-resistant layer 102, and the wear-resistant layer 102, the flame-retardant layer 103 and the non-woven fabric base layer 104 are bonded by glue, and the pressure-sensitive adhesive layer 105 is evenly coated on the bottom of the non-woven fabric base layer 104. The pressure-sensitive adhesive layer 105 made by UV curing hot melt is used as the adhesive layer of the cloth-based adhesive tape, which improves the high temperature resistance of the cloth-based adhesive tape, and the wear-resistant layer 102 and the flame-retardant layer 103 are added above the non-woven fabric base layer 104, which can further improve the flame retardancy and wear resistance of the cloth-based adhesive tape, thereby meeting the requirements of the engine compartment of pure electric vehicles and plug-in hybrid vehicles.

[0023] As a further implementation scheme of the above technical scheme: a pressing groove 8 is opened inside the cloth-based adhesive tape body 1, and the pressing grooves 8 are evenly distributed along the surface of the cloth-based adhesive tape body 1, and the pressing grooves 8 run through the cloth-based adhesive tape body 1. The cloth-based adhesive tape body 1 can be easily disconnected through the set pressing grooves 8, and the cloth-based adhesive tape body 1 can be cut without using a knife.

[0024] As a further implementation scheme of the above technical scheme: the wear-resistant layer 102 is made of silicone material. The wear-resistant layer 102 of silicone material cooperates with the wear-resistant particles 101 to improve the wear resistance of the cloth-based adhesive tape body 1 and also play a waterproof role.

[0025] As a further implementation scheme of the above technical scheme: the flame retardant layer 103 is made of PET material, which has good flame retardancy.

[0026] During specific implementation, the flame retardant layer 103 and the wear-resistant layer 102 are fixedly attached to the top of the non-woven fabric base layer 104 in sequence, and the wear-resistant particles 101 are attached to the top of the wear-resistant layer 102 to improve the wear resistance of the wear-resistant layer 102. At the same time, the wear-resistant layer 102 made of silicone material has a good waterproof effect, and the PET material has good flame retardancy, which can further increase the flame retardancy of the cloth-based adhesive tape body 1. A pressure-sensitive adhesive made of hot melt is cured by a UV switch at the bottom of the cloth-based adhesive tape body 1 and is evenly coated on the bottom of the non-woven fabric base layer 104 to form a pressure-sensitive adhesive layer 105.

[0027] As a further implementation scheme of the above technical scheme: an annular groove 3 is opened on the top of the tape holder 2, and a rotating rod 4 is installed inside the annular groove 3, an embedded head 7 is fixed to the bottom of the rotating rod 4, and an L-shaped support rod 5 is fixed to the top of the rotating rod 4, and the support rod 5 can be rotated on the side of the tape holder 2 through the rotating rod 4.

[0028] As a further implementation scheme of the above technical scheme: a limiting groove 6 is provided inside one end of the support rod 5 close to the cloth-based adhesive tape body 1, and the cloth-based adhesive tape body 1 passes through the inside of the limiting groove 6. After the end of the cloth-based adhesive tape body 1 is pulled apart, the support rod 5 can be driven to rotate, so that the end of the cloth-based adhesive tape body 1 can be found conveniently according to the position of the support rod 5, which serves as an identification for subsequent use.

[0029] As a further implementation scheme of the above technical scheme: a plurality of convex points are arranged on the surface of the embedding head 7, and the rotating rod 4 is rotated in the annular groove 3 through the embedding head 7, and the convex points on the embedding head 7 can increase the friction between the embedding head 7 and the annular groove 3.

[0030] In specific implementation, when the cloth-based adhesive tape body 1 needs to be torn open, since the end of the cloth-based adhesive tape body 1 always passes through the limiting groove 6, as the cloth-based adhesive tape body 1 is unfolded, the support rod 5 can be driven to rotate. At this time, the embedding head 7 on the rotating rod 4 slides in the annular groove 3. Since the friction between the embedding head 7 and the annular groove 3 is relatively large, the support rod 5 can be rotated only under the action of external force, so that the end of the cloth-based adhesive tape body 1 can be found according to the position of the support rod 5 when it is used next time.

[0031] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A cloth-based adhesive tape made of UV-curable hot-melt pressure-sensitive adhesive for automobile wiring harnesses, comprising a cloth-based adhesive tape body (1), a tape holder (2) installed inside the cloth-based adhesive tape body (1), and the cloth-based adhesive tape body (1) is wound layer by layer on the outer surface of the tape holder (2), the cross-section of the tape holder (2) is an I-shaped structure, characterized in that: The cloth-based adhesive tape body (1) comprises wear-resistant particles (101), a wear-resistant layer (102), a flame-retardant layer (103), a non-woven fabric base layer (104) and a pressure-sensitive adhesive layer (105) which are distributed in sequence from top to bottom. The wear-resistant particles (101) are evenly distributed on the top of the wear-resistant layer (102), and the wear-resistant layer (102), the flame-retardant layer (103) and the non-woven fabric base layer (104) are bonded by glue. The pressure-sensitive adhesive layer (105) is evenly coated on the bottom of the non-woven fabric base layer (104).

2. The cloth-based adhesive tape made of UV-curable hot-melt pressure-sensitive adhesive for automotive wiring harness according to claim 1, characterized in that: The cloth-based adhesive tape body (1) is provided with pressing grooves (8) inside, and the pressing grooves (8) are evenly distributed along the surface of the cloth-based adhesive tape body (1) at equal distances, and the pressing grooves (8) penetrate the cloth-based adhesive tape body (1).

3. The cloth-based adhesive tape made of UV-curable hot-melt pressure-sensitive adhesive for automotive wiring harness according to claim 1, characterized in that: The wear-resistant layer (102) is made of silica gel.

4. The cloth-based adhesive tape made of UV-curable hot-melt pressure-sensitive adhesive for automotive wiring harness according to claim 1, characterized in that: The flame retardant layer (103) is made of PET.

5. The cloth-based adhesive tape made of UV-curable hot-melt pressure-sensitive adhesive for automotive wiring harness according to claim 1, characterized in that: The top of the tape holder (2) is provided with an annular groove (3), and a rotating rod (4) is installed inside the annular groove (3). An embedded head (7) is fixed at the bottom of the rotating rod (4), and an L-shaped support rod (5) is fixed at the top of the rotating rod (4).

6. The cloth-based adhesive tape made of UV-curable hot-melt pressure-sensitive adhesive for automotive wiring harness according to claim 5, characterized in that: A limiting groove (6) is provided inside one end of the support rod (5) close to the cloth-based adhesive tape body (1), and the cloth-based adhesive tape body (1) passes through the inside of the limiting groove (6).

7. The cloth-based adhesive tape made of UV-curable hot-melt pressure-sensitive adhesive for automobile wiring harness according to claim 6, characterized in that: The surface of the embedding head (7) is provided with a plurality of convex points, and the rotating rod (4) is rotated in the annular groove (3) through the embedding head (7).

Images