A method for preparing a self-adhesive winged composite tape

Abstract

This invention relates to a method for preparing a self-adhesive winged composite tape, comprising the following steps: (1) placing a self-adhesive film on a first unwinding roller and pulling it out; (2) placing a substrate on a second unwinding roller and pulling it out; (3) guiding the pulled-out substrate through a guide wheel; (4) positioning the substrate after being guided through a vacuum adsorption roller; (5) repeating steps (3) and (4) at least once to make the substrate correspond one-to-one with the ink area on the self-adhesive film, and then bonding the two together on a hot press roller; (6) cutting the self-adhesive winged composite tape to the required width; (7) winding the self-adhesive winged composite tape; wherein the substrate is one of aluminum foil, copper foil, a composite layer of aluminum foil and plastic film, a composite layer of copper foil and plastic film, hot melt aluminum foil, hot melt copper foil, a composite layer of hot melt aluminum foil and plastic film, or a composite layer of hot melt copper foil and plastic film.

Description

Technical Field

[0001] This invention relates to the field of cable sheathing technology, and in particular to a method for preparing a self-adhesive winged composite tape. Background Technology

[0002] With the rapid development of information and communication technologies, increasingly higher demands are being placed on the transmission performance of signals and electronic information. Therefore, it is necessary to reduce signal loss and effectively prevent external interference. In high-frequency communication cables, a conventional technique is to use metal composite tape as a shielding layer to improve the cable's shielding performance. Traditional shielding composite tape is made by bonding equal-width Mylar and metal layers with adhesive. While this type of composite tape can provide shielding, during use, the cross-section has exposed metal, resulting in poor shielding effectiveness.

[0003] Therefore, winged composite tape was developed. Winged composite tape is made by bonding Mylar layers of varying widths with a metal layer or metal composite layer using adhesive. The Mylar layer is wider than the metal layer, providing better insulation and covering of the metal layer, thus improving cable shielding performance. However, conventional winged composite tape lacks self-adhesive properties, failing to firmly bond to cables and causing signal leakage. Furthermore, in the manufacturing process of self-adhesive winged composite tape, the thickness difference between the winged layer and the shielding layer makes it difficult to uniformly coat the self-adhesive layer on conventional tape. This can also lead to large misalignments between the Mylar layer and the metal layer or metal composite layer, resulting in weak adhesion and affecting the shielding effect. Summary of the Invention

[0004] In view of the shortcomings of the prior art, the purpose of this invention is to provide a method for preparing a self-adhesive winged composite tape to solve one or more problems in the prior art.

[0005] To achieve the above objectives, the technical solution of the present invention is as follows:

[0006] A method for preparing a self-adhesive winged composite tape includes the following steps:

[0007] (1) Place the self-adhesive film on the first unwinding roller and pull it out;

[0008] (2) Place the substrate on the second unwinding roller and pull it out;

[0009] (3) The pulled-out substrate is guided and limited by guide wheels;

[0010] (4) Position the substrate that has been guided by the limit using a vacuum adsorption roller;

[0011] (5) Repeat steps (3) and (4) at least once to make the substrate correspond one-to-one with the ink area on the self-adhesive film, and then combine the two on the hot press roller to obtain a self-adhesive winged composite belt.

[0012] (6) Cut the self-adhesive winged composite tape to the required width;

[0013] (7) Wind up the self-adhesive winged composite tape;

[0014] The substrate is one of aluminum foil, copper foil, a composite layer of aluminum foil and plastic film, a composite layer of copper foil and plastic film, hot-melt aluminum foil, hot-melt copper foil, a composite layer of hot-melt aluminum foil and plastic film, and a composite layer of hot-melt copper foil and plastic film.

[0015] Furthermore, when the substrate is a composite layer of hot-melt aluminum foil and plastic film, the total thickness of the composite layer is 18–28 μm; when the substrate is a composite layer of hot-melt copper foil and plastic film, the total thickness of the composite layer is 23–30 μm; when the substrate is hot-melt aluminum foil, the thickness of the hot-melt aluminum foil is 25–30 μm; when the substrate is hot-melt copper foil, the thickness of the hot-melt copper foil is 20–25 μm.

[0016] Furthermore, the self-adhesive film is a hot-melt polyester film or an ethylene copolymer film.

[0017] When the self-adhesive film is a hot-melt polyester film, the thickness of the self-adhesive film is 12–30 μm; when the self-adhesive film is an ethylene copolymer film, the thickness of the self-adhesive film is 25–30 μm. The ethylene copolymer film is one or more of EVA, EAA, EMAA, and PE.

[0018] The self-adhesive film surface is printed with multiple ink areas at intervals to mark and guide the bonding position.

[0019] The substrate further includes a hot melt adhesive layer, the hot melt adhesive layer being composed of one or more of EVA, EAA, EMAA, and PE.

[0020] Furthermore, a material groove is formed on the end face of the guide wheel. The width of the material groove is 1.01 to 1.05 times the width of the substrate, and the depth of the material groove is 175 to 500 times the thickness of the substrate. In step (5), the substrate is subjected to steps (3) and (4) again 1 to 2 times.

[0021] Furthermore, the traction force of the vacuum adsorption roller is 15-20N.

[0022] Furthermore, the temperature of the hot press roller is 85-100°C, and the pressure of the hot press roller is 0.4-0.6 MPa.

[0023] Furthermore, in step (7), a slip differential air shaft is used for winding, and the winding speed is 2 to 4 m / min.

[0024] Furthermore, the total thickness of the composite position on the self-adhesive winged composite tape is 30-43 μm, the offset is 0.1-0.5 mm, the interlayer peel force is 343-424 gf / cm, the heat seal strength is 287-333 gf / cm, the tensile strength is 79-116 MPa, and the elongation is 61-110%.

[0025] Compared with the prior art, the beneficial technical effects of the present invention are as follows:

[0026] (I) The self-adhesive winged composite tape of this invention is not adhesive at room temperature. During use, it only needs to be heated to 85°C to firmly bond to the cable. The winged portion, through its self-adhesive film, not only adheres better to and covers the cable but also prevents signal leakage caused by exposed metal. The shielding layer not only provides shielding but also features a hot-melt adhesive layer that firmly bonds to the cable, further enhancing the sealing effect. In summary, the self-adhesive winged composite tape effectively prevents signal leakage and interference from external signals, improving the transmission performance and safety of the cable.

[0027] (ii) Furthermore, the present invention designs the wing portion and the shielding layer portion to each have a self-adhesive surface before they are combined. The two only need to be hot-pressed together to realize the production of self-adhesive wing composite tape. This avoids the problem of uneven coating caused by the height difference between the wing portion and the shielding layer portion when coating the self-adhesive layer in the existing conventional wing composite tape, and improves the bonding reliability and firmness of the self-adhesive wing composite tape.

[0028] (iii) Furthermore, before lamination, the present invention uses guide wheels and vacuum adsorption rollers to limit, guide and position the substrate multiple times, thereby reducing the offset of the lamination position between the substrate and the self-adhesive film and ensuring the shielding effect.

[0029] (iv) Furthermore, by controlling the composite temperature, pressure and speed, the self-adhesive winged composite tape obtained by the present invention has a composite position offset of 0.1-0.5 mm, a peel force between composite layers of 343-424 gf / cm, a heat seal strength of 287-333 gf / cm, a total thickness of 30-43 μm, a tensile strength of 79-116 MPa and an elongation of 61-110%, and has higher physical properties than conventional winged composite tapes. Attached Figure Description

[0030] Figure 1 A schematic diagram of the structure of the self-adhesive winged composite tape provided in Embodiment 1 of the present invention is shown.

[0031] Figure 2 A schematic diagram of the structure of the self-adhesive film in the self-adhesive winged composite tape provided in Embodiment 1 of the present invention is shown. Detailed Implementation

[0032] To make the objectives, features, and advantages of this invention more apparent and understandable, please refer to the accompanying drawings. It should be understood that the structures, proportions, sizes, etc., depicted in the accompanying drawings are merely for illustrative purposes and to aid those skilled in the art in understanding and reading the invention. They are not intended to limit the implementation conditions of the invention and therefore have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to the size, without affecting the effects and objectives achieved by the invention, should still fall within the scope of the technical content disclosed in this invention.

[0033] In the description of this invention, the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0034] Example 1

[0035] A method for preparing a self-adhesive winged composite tape includes the following steps:

[0036] (1) A hot melt PET film with a width of 220 mm and a thickness of 12 μm is placed on the first unwinding roller and then pulled out. The hot melt PET film has 10 blue ink areas with a width of 16 mm printed on it, and the spacing between each ink area is 6 mm.

[0037] (2) The composite layer of hot melt aluminum foil and plastic film, with the structure of hot melt adhesive / AL7 / PET4.5, where AL7 is an aluminum foil with a thickness of 7μm and PET4.5 is a PET film with a thickness of 4.5μm, is placed on the second unwinding roller and then pulled out. The width of the hot melt adhesive / AL7 / PET4.5 composite layer is 16mm, and 10 of these composite layers are pulled out.

[0038] (3) The 10 hot melt adhesive / AL7 / PET4.5 composite layers pulled out are guided by the corresponding guide wheels for limiting and guiding. The groove width of the guide wheel is 16.15mm and the groove depth is 9mm.

[0039] (4) Position all 10 hot melt adhesive / AL7 / PET4.5 composite layers using a vacuum adsorption roller with a traction force of 20N.

[0040] (5) The 10 hot melt adhesive / AL7 / PET4.5 composite layers are guided and positioned again in steps (3) and (4) so ​​that they correspond one by one with the ink areas on the hot melt PET film. On a hot press roller with a temperature of 85°C and a pressure of 0.4MPa, the hot melt adhesive / AL7 / PET4.5 composite layers are laminated with the hot melt PET film by means of the heat bonding characteristics of the hot melt adhesive on the substrate.

[0041] (6) Cut the self-adhesive winged composite tape into a composite tape with a total width of 22mm, wherein the 22mm width includes a total composite layer of 16mm width and an extra 6mm winged hot melt PET layer at the edge.

[0042] (7) At a speed of 2 m / min, the self-adhesive winged composite belt is wound up using a slip differential air shaft to ensure that the tension on each self-adhesive winged composite belt is uniform and properly tensioned.

[0043] Example 2

[0044] A method for preparing a self-adhesive winged composite tape includes the following steps:

[0045] (1) A hot melt PET film with a width of 220 mm and a thickness of 12 micrometers is placed on the first unwinding roller and then pulled out. The hot melt PET film has 10 blue ink areas with a width of 16 mm printed on it, and the spacing between each ink area is 6 mm.

[0046] (2) The composite layer of hot melt aluminum foil and plastic film, with the structure of hot melt adhesive / AL7 / PET4.5, is placed on the second unwinding roller and then pulled out. The width of the hot melt adhesive / AL7 / PET4.5 composite layer is 16mm, and 10 of the composite layers are pulled out.

[0047] (3) The 10 hot melt adhesive / AL7 / PET4.5 composite layers pulled out are guided by the corresponding guide wheels for limiting and guiding. The groove width of the guide wheel is 16.15mm and the groove depth is 9mm.

[0048] (4) Position all 10 hot melt adhesive / AL7 / PET4.5 composite layers using a vacuum adsorption roller with a traction force of 20N.

[0049] (5) Repeat steps (3) and (4) twice to guide and position the hot melt adhesive / AL7 / PET4.5 composite layer so that it corresponds one-to-one with the ink area on the hot melt PET film. On a hot press roller with a temperature of 85°C and a pressure of 0.4MPa, the hot melt adhesive / AL7 / PET4.5 composite layer is laminated with the hot melt PET film by means of the heat-bonding property of the hot melt adhesive on the substrate.

[0050] (6) Cut the self-adhesive winged composite tape into a composite tape with a total width of 22mm, wherein the 22mm width includes a total composite layer of 16mm width and an extra 6mm winged hot melt PET layer at the edge.

[0051] (7) At a speed of 2 m / min, the self-adhesive winged composite belt is wound up using a slip differential air shaft to ensure that the tension on each self-adhesive winged composite belt is uniform and properly tensioned.

[0052] Example 3:

[0053] A method for preparing a self-adhesive winged composite tape includes the following steps:

[0054] (1) A hot melt PET film with a width of 220 mm and a thickness of 12 micrometers is placed on the first unwinding roller and then pulled out. The hot melt PET film has 10 blue ink areas with a width of 16 mm printed on it, and the spacing between each ink area is 6 mm.

[0055] (2) A hot melt aluminum foil with a thickness of 25 micrometers and a structure of hot melt adhesive / AL20 is placed on the second unwinding roller and then pulled out. The width of the hot melt adhesive / AL20 composite layer is 16mm, and 10 of the composite layers are pulled out.

[0056] (3) The 10 hot melt adhesive / AL20 composite layers pulled out are guided by the corresponding guide wheels for limiting and guiding. The groove width of the guide wheel is 16.15mm and the groove depth is 9mm.

[0057] (4) Position all 10 hot melt adhesive / AL20 composite layers using a vacuum adsorption roller with a traction force of 15N.

[0058] (5) The 10 hot melt adhesive / AL20 composite layers are guided and positioned again through steps (3) and (4) to correspond one by one with the ink area on the hot melt PET film. On the hot press roller with a temperature of 100℃ and a pressure of 0.6MPa, the hot melt adhesive / AL20 composite layer is combined with the hot melt PET film by means of the heat bonding characteristics of the hot melt adhesive on the substrate.

[0059] (6) Cut the self-adhesive winged composite tape into a composite tape with a total width of 22mm, wherein the 22mm width includes a total composite layer of 16mm width and an extra 6mm winged hot melt PET layer at the edge.

[0060] (7) At a speed of 4 m / min, the self-adhesive winged composite belt is wound up using a slip differential air shaft to ensure that the tension on each self-adhesive winged composite belt is uniform and properly tensioned.

[0061] Example 4:

[0062] A method for preparing a self-adhesive winged composite tape includes the following steps:

[0063] (1) Place an EVA film with a width of 220 mm and a thickness of 25 micrometers on the first unwinding roller and then pull it out. The EVA film has 10 blue ink areas with a width of 16 mm printed on it, and the spacing between each ink area is 6 mm.

[0064] (2) The composite layer of hot melt aluminum foil and plastic film, with the structure of hot melt adhesive / AL7 / PET4.5, is placed on the second unwinding roller and then pulled out. The width of the hot melt adhesive / AL7 / PET4.5 composite layer is 16mm, and 10 of the composite layers are pulled out.

[0065] (3) The 10 hot melt adhesive / AL7 / PET4.5 composite layers pulled out are guided by the corresponding guide wheels for limiting and guiding. The groove width of the guide wheel is 16.15mm and the groove depth is 9mm.

[0066] (4) Position all 10 hot melt adhesive / AL7 / PET4.5 composite layers using a vacuum adsorption roller with a traction force of 20N.

[0067] (5) The 10 hot melt adhesive / AL7 / PET4.5 composite layers are guided and positioned again in steps (3) and (4) to correspond one by one with the ink area on the EVA film. On a hot press roller with a temperature of 85°C and a pressure of 0.4MPa, the hot melt adhesive / AL7 / PET4.5 composite layer is laminated with the hot melt PET film by means of the heat bonding property of the hot melt adhesive on the substrate.

[0068] (6) Cut the self-adhesive winged composite tape into a composite tape with a total width of 22mm, wherein the 22mm width includes a total composite layer of 16mm width and an extra 6mm winged hot melt PET layer at the edge.

[0069] (7) At a speed of 2 m / min, the self-adhesive winged composite belt is wound up using a slip differential air shaft to ensure that the tension on each self-adhesive winged composite belt is uniform and properly tensioned.

[0070] Comparative Example 1

[0071] The conventional winged composite tape is coated with the same hot melt adhesive as that used in hot melt PET film on a coating machine, dried in an oven, and then rolled up.

[0072] Comparative Example 2

[0073] A method for preparing a self-adhesive winged composite tape, characterized in that the preparation method comprises:

[0074] (1) A hot melt PET film with a width of 220 mm and a thickness of 12 μm is installed on the unwinding roller 1 and then pulled out. The hot melt PET film has 10 blue ink areas with a width of 16 mm printed on it, and the spacing between each ink area is 6 mm.

[0075] (2) The composite layer of hot melt aluminum foil and plastic film, with the structure of hot melt adhesive / AL7 / PET4.5, is installed on the unwinding roller 2 and then pulled out. The width of the hot melt adhesive / AL7 / PET4.5 composite layer is 16mm, and 10 of the composite layers are pulled out.

[0076] (3) The 10 hot melt adhesive / AL7 / PET4.5 composite layers pulled out are guided by the corresponding guide wheels for limiting and guiding. The groove width of the guide wheel is 16.15mm and the groove depth is 9mm.

[0077] (4) Position all 10 hot melt adhesive / AL7 / PET4.5 composite layers using a vacuum adsorption roller with a traction force of 20N.

[0078] (5) The 10 hot melt adhesive / AL7 / PET4.5 composite layers are matched one by one with the ink area on the hot melt PET film. On the hot press roller with a temperature of 85℃ and a pressure of 0.4MPa, the hot melt adhesive / AL7 / PET4.5 composite layers are combined with the hot melt PET film by means of the heat-bonding property of the hot melt adhesive on the substrate.

[0079] (6) Cut the self-adhesive winged composite tape into a composite tape with a total width of 22mm, wherein the 22mm width includes a total composite layer of 16mm width and an extra 6mm winged hot melt PET layer at the edge.

[0080] (7) At a speed of 2 m / min, the self-adhesive winged composite belt is wound up using a slip differential air shaft to ensure that the tension on each self-adhesive winged composite belt is uniform and properly tensioned.

[0081] Comparative Example 3

[0082] A method for preparing a self-adhesive winged composite tape, characterized in that the preparation method comprises:

[0083] (1) A hot melt PET film with a width of 220 mm and a thickness of 12 μm is placed on the first unwinding roller and then pulled out. The hot melt PET film has 10 blue ink areas with a width of 16 mm printed on it, and the spacing between each ink area is 6 mm.

[0084] (2) The composite layer of hot melt aluminum foil and plastic film, with the structure of hot melt adhesive / AL7 / PET4.5, is placed on the second unwinding roller and then pulled out. The width of the hot melt adhesive / AL7 / PET4.5 composite layer is 16mm, and 10 of the composite layers are pulled out.

[0085] (3) The 10 hot melt adhesive / AL7 / PET4.5 composite layers pulled out are guided by the corresponding guide wheels for limiting and guiding. The groove width of the guide wheel is 16.15mm and the groove depth is 9mm.

[0086] (4) Position all 10 hot melt adhesive / AL7 / PET4.5 composite layers using a vacuum adsorption roller with a traction force of 20N.

[0087] (5) The 10 hot melt adhesive / AL7 / PET4.5 composite layers are guided and positioned again in steps (3) and (4) to correspond one by one with the ink area on the hot melt PET film. On the hot press roller with a temperature of 25°C and a pressure of 0.4MPa, the hot melt adhesive / AL7 / PET4.5 composite layer is laminated with the hot melt PET film by means of the heat bonding property of the hot melt adhesive on the substrate.

[0088] (6) Cut the self-adhesive winged composite tape into a composite tape with a total width of 22mm, wherein the 22mm width includes a total composite layer of 16mm width and an extra 6mm winged hot melt PET layer at the edge.

[0089] (7) At a speed of 2 m / min, the self-adhesive winged composite belt is wound up using a slip differential air shaft to ensure that the tension on each self-adhesive winged composite belt is uniform and properly tensioned.

[0090] Comparative Example 4

[0091] A method for preparing a self-adhesive winged composite tape, characterized in that the preparation method comprises:

[0092] (1) A hot melt PET film with a width of 220 mm and a thickness of 12 μm is installed on the first unwinding roller and then pulled out. The hot melt PET film has 10 blue ink areas with a width of 16 mm printed on it, and the spacing between each ink area is 6 mm.

[0093] (2) The composite layer of hot melt aluminum foil and plastic film, with the structure of hot melt adhesive / AL7 / PET4.5, is installed on the unwinding roller 2 and then pulled out. The width of the hot melt adhesive / AL7 / PET4.5 composite layer is 16mm, and 10 of the composite layers are pulled out.

[0094] (3) The 10 hot melt adhesive / AL7 / PET4.5 composite layers pulled out are guided by the corresponding guide wheels for limiting and guiding. The groove width of the guide wheel is 16.15mm and the groove depth is 9mm.

[0095] (4) Position all 10 hot melt adhesive / AL7 / PET4.5 composite layers using a vacuum adsorption roller with a traction force of 20N.

[0096] (5) The 10 hot melt adhesive / AL7 / PET4.5 composite layers are guided and positioned again in steps (3) and (4) to correspond one by one with the ink area on the hot melt PET film. On the hot press roller with a temperature of 85°C and a pressure of 0.4MPa, the hot melt adhesive / AL7 / PET4.5 composite layer is laminated with the hot melt PET film by means of the heat bonding property of the hot melt adhesive on the substrate.

[0097] (6) Cut the self-adhesive winged composite tape into a composite tape with a total width of 22mm, wherein the 22mm width includes a total composite layer of 16mm width and an extra 6mm winged hot melt PET layer at the edge.

[0098] (7) At a speed of 8 m / min, the self-adhesive winged composite belt is wound up using a slip differential air shaft to ensure that the tension on each self-adhesive winged composite belt is uniform and properly tensioned.

[0099] The performance of the self-adhesive winged composite tapes prepared in Examples 1-4 and Comparative Examples 1-4 was tested, as shown in Table 1.

[0100]

[0101] Table 1

[0102] Tensile strength was tested using an AI-3000 tensile tester.

[0103] Peel strength was tested using a PT-6086 computer-controlled servo peel strength tester.

[0104] Heat seal strength is determined by first heat-sealing the self-adhesive winged composite tape and PE core wire at 85℃ and 0.4MPa using a heat sealer, and then testing the peel strength on an AI-3000 tensile tester. The obtained data is the heat seal strength.

[0105] The offset was measured using an ISM-DL301-Y digital measuring microscope.

[0106] As shown in Table 1, the self-adhesive winged composite tapes in Examples 1-4 only require heating to 85°C to firmly bond cables during use. This invention designs the winged portion and the shielding layer to each have a self-adhesive surface before lamination, allowing for heat-press lamination to produce a self-adhesive winged composite tape. This solves the problem in Comparative Example 1 where the conventional winged composite tape exhibits uneven coating in the same area due to the height difference between the winged portion and the shielding layer during self-adhesive layer application, resulting in inconsistent thickness.

[0107] As can be seen from Examples 1 and 2, increasing the number of guiding and positioning operations can reduce the offset of the composite area on the composite belt. In Comparative Example 2, the substrate only underwent one guiding and positioning operation, and the final offset of the composite area on the composite belt was as high as 0.7 mm, which is close to the offset on a conventional composite belt.

[0108] Compared with Example 1, Comparative Examples 3-4 changed the composite temperature and speed within the scope of the present invention, resulting in composite tapes with lower peel strength and tensile properties. This is because the two substrates are bonded together by hot melt adhesive. For hot melt adhesive to exhibit good adhesion, a suitable temperature is required. If the temperature is too low or the contact time is too short, it is not conducive to the hot melt adhesive melting and bonding.

[0109] Compared with conventional winged composite tapes, the self-adhesive winged composite tape of the present invention has a composite position offset of 0.1 to 0.5 mm, a peel force between composite layers of 343 to 424 gf / cm, a heat seal strength of 287 to 333 gf / cm, a total thickness of 30 to 43 μm, a tensile strength of 79 to 116 MPa, and an elongation of 61 to 110%, exhibiting better physical properties.

[0110] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0111] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. A method for preparing a self-adhesive winged composite tape, characterized in that, Includes the following steps: (1) Place the self-adhesive film on the first unwinding roller and pull it out; (2) Place the substrate on the second unwinding roller and pull it out; (3) The pulled-out substrate is guided and limited by guide wheels; (4) Position the substrate that has been guided by the limit using a vacuum adsorption roller; (5) Repeat steps (3) and (4) at least once to make the substrate correspond one-to-one with the ink area on the self-adhesive film, and then composite the substrate and the self-adhesive film on the hot press roller to obtain a self-adhesive winged composite belt. (6) Cut the self-adhesive winged composite tape to the required width; (7) Wind up the self-adhesive winged composite tape; The substrate is one of aluminum foil, copper foil, a composite layer of aluminum foil and plastic film, a composite layer of copper foil and plastic film, hot-melt aluminum foil, hot-melt copper foil, a composite layer of hot-melt aluminum foil and plastic film, and a composite layer of hot-melt copper foil and plastic film. The self-adhesive film is a hot-melt polyester film or an ethylene copolymer film; The substrate also includes a hot melt adhesive layer; The traction force of the vacuum adsorption roller is 15~20N; The temperature of the hot press roller is 85~100℃, the pressure of the hot press roller is 0.4~0.6MPa, and the winding speed is 2~4m / min.

2. The method for preparing a self-adhesive winged composite tape as described in claim 1, characterized in that: When the substrate is a composite layer of hot-melt aluminum foil and plastic film, the total thickness of the composite layer is 18~28μm; when the substrate is a composite layer of hot-melt copper foil and plastic film, the total thickness of the composite layer is 23~30μm; when the substrate is hot-melt aluminum foil, the thickness of the hot-melt aluminum foil is 25~30μm; when the substrate is hot-melt copper foil, the thickness of the hot-melt copper foil is 20~25μm.

3. The method for preparing a self-adhesive winged composite tape as described in claim 1, characterized in that: When the self-adhesive film is a hot-melt polyester film, the thickness of the self-adhesive film is 12~30μm; when the self-adhesive film is an ethylene copolymer film, the thickness of the self-adhesive film is 25~30μm.

4. The method for preparing a self-adhesive winged composite tape as described in claim 3, characterized in that: The ethylene copolymer film is a combination of one or more of EVA, EAA, EMAA, and PE.

5. The method for preparing a self-adhesive winged composite tape as described in claim 1, characterized in that: A material groove is formed on the end face of the guide wheel. The width of the material groove is 1.01 to 1.05 times the width of the substrate, and the depth of the material groove is 175 to 500 times the thickness of the substrate.

6. The method for preparing a self-adhesive winged composite tape as described in claim 1, characterized in that: The total thickness of the self-adhesive winged composite tape at the composite position is 30~43μm, the offset is 0.1~0.5mm, the interlayer peel force is 343~424gf / cm, the heat seal strength is 287~333 gf / cm, the tensile strength is 79~116MPa, and the elongation is 61~110%.

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