WATERPROOF SEAL TAPE

Abstract

Waterproof closure strap (100) which features: a waterproof membrane (110) comprising a transparent layer (112) and a colored layer (114) layered below the transparent layer (112), an adhesion layer (120) layered below the stained layer (114) and a closure band body (130) which is attached below the colored layer (114) of the waterproof membrane (110) through the adhesion layer (120), characterized by the fact that a boundary (B) between the transparent layer (112) and the colored layer (114) does not form a total dividing line.

Description

TECHNICAL AREA

[0001] The disclosure relates to a technology in the field of closures and specifically to a waterproof closure tape. BACKGROUND TECHNOLOGY

[0002] Conventional closures from existing technology in the field of fasteners typically feature a closure chain formed by a pair of strip-shaped closure bands, multiple dome links on the closure bands, and a slider installed on the closure chain for opening or closing the dome links by sliding. A slider handle may also be attached to the slider for operation as required. The closure band is typically formed by a long, strip-like layer structure, and waterproof material may also be applied to the closure band body to create a waterproof closure. Furthermore, a dye may be added to the waterproof material to give the waterproof closure band a variety of appearances. SUMMARY OF THE INVENTIONAL PROBLEM

[0003] However, adding dye to the waterproof material reduces the colorfastness of the resulting coating, and it is easy to create color problems on the fabric to which the waterproof sealing tape is applied. Therefore, it is necessary to improve both the waterproofing and colorfastness properties of the waterproof sealing tape.

[0004] CN 2 12 787 699 U and WO 2022 / 180 926 A1 each disclose a waterproof sealing band according to the preamble of claim 1. SOLUTION TO THE PROBLEM

[0005] The revelation provides a waterproof sealing band that can improve colorfastness after dyeing, thus avoiding the staining problem of the dyed layer.

[0006] The disclosure provides a waterproof closure band comprising: a waterproof membrane with a transparent layer and a colored layer laminated below the transparent layer, an adhesion layer laminated below the colored layer, and a closure band body that is attached below the colored layer of the waterproof membrane through the adhesion layer, wherein a boundary between the transparent layer and the colored layer does not form a total dividing line.

[0007] According to one embodiment of the disclosure, the waterproof membrane and the adhesion layer are each made of a water-based material.

[0008] According to one embodiment of the disclosure, the waterproof membrane is arranged in such a way that a color gradient is created at a boundary between the transparent layer and the colored layer.

[0009] According to one embodiment of the disclosure, the thickness of the waterproof membrane is 1 / 21 or more and 1 / 11 or less than the thickness of the waterproof sealing tape.

[0010] According to one embodiment of the disclosure, the thickness of the waterproof membrane is 30 µm or more and 60 µm or less.

[0011] According to one embodiment of the disclosure, the thickness of the colored layer is equal to or greater than the thickness of the transparent layer.

[0012] According to one embodiment of the disclosure, the thickness of the colored layer is 1 / 32 or more and 1 / 16 or less than the thickness of the waterproof sealing tape.

[0013] According to one embodiment of the disclosure, the thickness of the colored layer is 20 µm or more and 40 µm or less.

[0014] According to one embodiment of the disclosure, the thickness of the transparent layer is 1 / 128 or more and 1 / 32 or less than the thickness of the waterproof sealing tape.

[0015] According to one embodiment of the disclosure, the thickness of the transparent layer is 5 µm or more and 20 µm or less.

[0016] According to one embodiment of the disclosure, the thickness of the adhesive layer is 1 / 5 or more and 1 / 4 or less than the thickness of the waterproof sealing tape.

[0017] According to one embodiment of the disclosure, the thickness of the adhesion layer is 120 µm or more and 160 µm or less.

[0018] According to one embodiment of the disclosure, the thickness of the adhesion layer is 2 times or more and 5 times or less than the thickness of the waterproof membrane.

[0019] According to one embodiment of the disclosure, the thickness of the waterproof sealing tape is 600 µm or more and 700 µm or less.

[0020] According to one embodiment of the disclosure, the closure band body is provided with dome elements, and the dome elements and the waterproof membrane are attached to opposite sides of the closure band body. The disclosure further provides a manufacturing method for the waterproof closure band, wherein the waterproof closure band comprises: a waterproof membrane with a transparent layer and a colored layer layered below the transparent layer, an adhesion layer layered below the colored layer, and a closure band body that is attached below the colored layer of the waterproof membrane through the adhesion layer, wherein the manufacturing method comprises: providing the colored layer on the transparent layer while the transparent layer is still in a semi-dry state. ADVANTAGEOUS EFFECTS OF THE INVENTION

[0021] Based on the above, in the waterproof closure band of the disclosure, the waterproof membrane has a transparent layer and a colored layer layered below the transparent layer, an adhesion layer layered below the colored layer, and a closure band body attached by the adhesion layer below the colored layer of the waterproof membrane.In contrast to the prior art method, which uses a single-layer structure formed by the mixed-layer coating where the dye is added directly to the waterproof material, the waterproof sealing tape of the disclosure utilizes a two-layer structure formed by the transparent layer and the colored layer to act as a waterproof membrane. This allows the transparent layer to protect the underlying colored layer, preventing the colorfastness problem caused by a decrease in the colorfastness of the colored layer. Accordingly, the waterproof sealing tape of the disclosure can improve the colorfastness after dyeing, thus avoiding the colorfastness problem of the colored layer. BRIEF DESCRIPTION OF THE DRAWINGS Fig. Figure 1 is a schematic side view of a layering of the waterproof closure band according to an embodiment of the disclosure. Fig. 2 is a schematic view of a manufacturing process for a waterproof membrane, which is used in Fig. The waterproof closure tape shown in section 1 is used. DESCRIPTION OF THE EXECUTION FORMS

[0022] To make the above-mentioned features and advantages of the disclosure clearer and easier to understand, embodiments are given below and described in detail with accompanying drawings.

[0023] Fig. Figure 1 is a schematic side view of a layering of a waterproof closure band according to an embodiment of the disclosure. Fig. 2 is a schematic view of a manufacturing process for a waterproof membrane, which is used in Fig. The closure band shown in Figure 1 is used. The specific structure and manufacturing process of a closure band 100 provided in an embodiment of the disclosure are described below with reference to Fig. 1 and Fig. 2 described. However, this is only an example. The disclosure is not limited to this and can be modified according to the requirements.

[0024] Regarding Fig. In embodiment 1, the waterproof sealing tape 100 comprises a waterproof membrane 110, an adhesive layer 120, and a sealing tape body 130. The waterproof membrane 110 has a transparent layer 112 and a colored layer 114 layered beneath the transparent layer 112. The adhesive layer 120 is layered beneath the colored layer 114. The sealing tape body 130 is attached by the adhesive layer 120 beneath the colored layer 114 of the waterproof membrane 110. This means that, from the perspective of the layering direction (i.e., the thickness direction) of the waterproof sealing tape 100, from top to bottom, there is the transparent layer 112 of the waterproof membrane 110, the colored layer 114 of the waterproof membrane 110, the adhesive layer 120, and the sealing tape body 130 in that order.

[0025] In particular, according to the embodiment, the waterproof membrane 110 and the closure band body 130 can be manufactured separately in advance, and then the waterproof membrane 110 and the closure band body 130 are joined together by the adhesive layer 120. As an example, as shown in Fig. Figure 2 shows a base material 52 (e.g., a peelable membrane) delivered by a transport device 50 (e.g., a conveyor belt), and a first coating unit 54a, a first drying unit 56a, a second coating unit 56b, and a second drying unit 56b, which allow the base material 52 to pass through them sequentially, are arranged in the transport direction of the transport direction 50 (e.g., the right side in Fig. 2) arranged. In this way, during the transport process of the base material 52 along the transport direction, a waterproof transparent material is layered onto the base material 52 by the first coating unit 54a, and then drying is carried out by the first drying unit 56a to form the transparent layer 112. Then a coloring material containing color is layered onto the transparent layer 112 formed on the base material 52 by the second coating unit 54b, and then drying is carried out by the second drying unit 56b to form the colored layer 114.

[0026] It can be seen that the transparent layer 112 and the colored layer 114 of the waterproof membrane 110 can be prefabricated and layered together, so that the waterproof membrane 110 can be used as a single component. Subsequently, the waterproof membrane 110 is manufactured in the required shape and size by the following processes (e.g., cutting), and the base material 52 is peeled from the transparent layer 112 to form the waterproof membrane 110 with a two-layer structure. The peeling of the base material 52 can occur after the transparent layer 112 and the colored layer 114 have been formed, or after the waterproof membrane 110 has been layered onto the adhesion layer 120, or further onto the closure band body 130, and the disclosure is not limited in this respect.

[0027] It goes without saying that, although during the manufacturing process in Fig. 2. The disclosure does not preclude the procedure of first forming the colored layer 114 and then forming the transparent layer 112 on the base material 52, even though the transparent layer 112 is formed first and the colored layer 114 is subsequently formed on the base material 52. Furthermore, although in the manufacturing process of Fig. 2. The colored layer 114, which is subsequently formed, is placed over the previously formed transparent layer 112, thus layering the finished waterproof membrane 110 with a downwardly oriented colored layer 114 (i.e., the adhesion layer 120 is formed beneath the colored layer 114), so that after the closure band body 130 is attached to the waterproof membrane 110 through the adhesion layer 120, the transparent layer 112 of the waterproof membrane 110 forms the outermost structure of the waterproof closure band 100. The disclosure is not restrictive with respect to the manufacturing process of the waterproof membrane 110, which can be adapted according to requirements.

[0028] Furthermore, according to the embodiment, the waterproof membrane 110 and the adhesive layer 120 can be manufactured together in advance and layered together. For example, in the Fig. In the manufacturing process shown in Figure 2, an adhesive is layered onto the colored layer 114 to serve as the adhesion layer 120, and an additional base material is used to temporarily cover the adhesion layer 120. When the closure band body 130 is ready to be placed beneath the waterproof membrane 110 and the adhesion layer 120, the base material is torn open to expose the adhesion layer 120, allowing the closure band body 130 to be placed beneath the waterproof membrane 110 and the adhesion layer 120.It is understood that, after the waterproof membrane 110 with a two-layer structure and the closure band body 130 are manufactured separately, the lower surface of the colored layer 114 of the waterproof membrane 110, opposite the transparent layer 112, or the upper surface of the closure band body 130, is coated with an adhesive to serve as an adhesion layer 120, and then the waterproof membrane 110 and the closure band body 130 are joined using the adhesion layer 120, thus omitting the base material for temporarily covering the adhesion layer 120. The disclosure does not restrict the formation method of the adhesion layer 120 or the joining sequence of the waterproof membrane 110, the adhesion layer 120, and the closure band body 130, which can be adapted according to requirements.

[0029] By the arrangement mentioned above, the waterproof sealing tape 100 according to the embodiment has the transparent layer 112 of the waterproof membrane 110, the colored layer 114 of the waterproof membrane 110, the adhesion layer 120 and the sealing tape body 130, which are layered in this order from top to bottom, and thus the transparent layer 112 of the waterproof membrane 110 forms the outermost structure of the waterproof sealing tape 100.In contrast to the prior art method, which uses a single-layer structure formed by the mixed-layer coating where the dye is added directly to the waterproof material, the waterproof sealing tape of this disclosure utilizes a two-layer structure formed by the transparent layer and the colored layer to act as a waterproof membrane. This allows the transparent layer to protect the underlying colored layer, preventing the staining problem caused by a decrease in colorfastness in the colored layer. For example, using colorfastness as an example, a colorfastness level of 4 or higher can prevent staining problems at level 5, while a colorfastness level of 3 or lower is a defective product.The colorfastness of the mixed-layer coating used in the prior art is at level 1 or 2, while the colorfastness of the waterproof membrane 110 used in the waterproof sealing tape 100, which is formed from the transparent layer 112 and the colored layer 114, is at level 4 or 5. Accordingly, the waterproof sealing tape 100 can improve the colorfastness after dyeing and thus avoid the dyeing problem of the colored layer 114.

[0030] Furthermore, according to the in Fig. In the embodiment shown in Figure 1, the waterproof sealing tape 100 has a thickness T3, a waterproof membrane 110 has a thickness T1, an adhesion layer 120 has a thickness T2, and the sealing tape body has a thickness T3. For ease of use, the thickness T3 of the waterproof sealing tape 100 is preferably 600 µm or more and 700 µm or less (650 µm in a preferred embodiment). Based on this, the following examples are provided for the thickness T1 of the waterproof membrane 110 of the waterproof sealing tape 100 (comprising a thickness T11 of the transparent layer 112 and a thickness T12 of the colored layer 114) and the thickness T2 of the adhesion layer 120. However, the disclosure does not restrict the actual specification of the thickness T3 of the waterproof sealing tape 100, and it can be adapted according to requirements.

[0031] In particular, according to the embodiment, the thickness T1 of the waterproof membrane 110 is preferably 1 / 21 or more and 1 / 11 or less than the thickness T3 of the waterproof sealing band 100. For example, the thickness T1 of the waterproof membrane 110 is 30 µm or more and 60 µm or less (40 µm in a preferred embodiment). This prevents the thickness T1 of the waterproof membrane 110 from being too small (e.g., less than 30 µm), thus avoiding damage from pulling when the slider (not shown), installed on the waterproof sealing band 100, slides relative to the waterproof sealing band 100, or it prevents the thickness T1 of the waterproof membrane 110 from being too large (e.g., more than 60 µm), thus avoiding an increase in the overall size of the waterproof sealing band 100.

[0032] Furthermore, according to the embodiment, the thickness T1 of the waterproof membrane 110 comprises the thickness T11 of the transparent layer 112 and the thickness T12 of the colored layer 114, and the thickness T12 of the colored layer 114 is equal to or greater than the thickness T11 of the transparent layer 112. The thickness T12 of the colored layer 114 is 1 / 32 or more and 1 / 16 or less of the thickness T3 of the waterproof sealing tape 100, and the thickness T11 of the transparent layer 112 is 1 / 128 or more and 1 / 32 or less of the thickness T3 of the waterproof sealing tape 100. For example, the thickness T12 of the colored layer 114 is 20 µm or more and 40 µm or less (25 µm in a preferred embodiment), and the thickness T11 of the transparent layer 112 is 5 µm or more and 20 µm or less (15 µm in a preferred embodiment). This prevents the thickness T12 of the colored layer 114 from being too small (e.g.less than 20 µm), thus avoiding a reduction in the color rendering effect of the colored layer 114, or it can be prevented that the thickness T12 of the colored layer 114 is too large (more than 40 µm), thus avoiding an increase in the overall size of the waterproof membrane 110. Furthermore, it can be prevented that the thickness T11 of the transparent layer 112 is too large (e.g., more than 20 µm), thus avoiding an increase in the overall size of the waterproof membrane 110 or a reduction in the color rendering effect of the colored layer 114, or that the thickness T11 of the transparent layer 112 is too small (e.g., less than 5 µm), thus avoiding damage caused by pulling when the slider (not shown) moves.

[0033] Furthermore, according to the in Fig. In the embodiment shown in Figure 1, the thickness T2 of the adhesion layer 120 is preferably 2 times or more and 5 times or less than the thickness T1 of the waterproof membrane 110, and the thickness T2 of the adhesion layer 120 is 1 / 5 or more and 1 / 4 or less than the thickness T3 of the waterproof sealing tape 100. For example, the thickness T2 of the adhesion layer 120 is 120 µm or more and 160 µm or less (140 µm in a preferred embodiment). In this way, it can be prevented that the thickness T2 of the adhesion layer 120 is too small (e.g. less than 120 µm), thus preventing separation of the waterproof membrane 110 from the closure band body 130 (i.e. insufficient adhesion), and it can be prevented that the thickness T2 of the adhesion layer 120 is too large (e.g. more than 160 µm), thus preventing problems caused by drying or bubble formation (i.e. reduced adhesion).

[0034] Accordingly, the thickness of the closure band body 130 can be adjusted according to the final specification required for the waterproof closure band 100. That is, the thickness of the closure band body 130 is not limited. In this way, the waterproof membrane 110 used, from the aforementioned specification, and the adhesion layer 120 are adapted for different types of closure band bodies 130, thus providing the waterproofing and coloring properties for the waterproof closure band 100. The thickness mentioned above refers to the extent with respect to the layering direction. However, the thicknesses of these layers represent only some of the embodiments of the disclosure that can be adapted according to the requirements, and the disclosure is not limited to these.

[0035] Additionally, according to the in Fig. In the embodiment shown in Figure 1, the closure band body 130 is also provided with dome elements 132, and the dome elements 132 and the waterproof membrane 110 are preferably attached to opposite sides of the closure band body 130. This means that after a plurality of the dome elements 132 have been arranged on the closure band body 130 (e.g., sewn onto the closure band body 130), the closure band body 130, the waterproof membrane 110, and the adhesive layer 120 can be layered. In this way, the waterproof membrane 110 can be smoothly connected to the side of the closure band body 130 opposite the dome elements 132 by the adhesive layer 120 (with the transparent layer 112 being the visible surface), so that the dome elements 132 are positioned on the inside of the closure band body 130.Therefore, the waterproof closure band 100 is designed as a closure band with concealed dome links. It is understood that, after the waterproof membrane 110 is layered onto the closure band body 130 through the adhesion layer 120, the dome links 132 can be attached to the side of the closure band body 130 opposite the waterproof membrane 110 and the adhesion layer 120. Alternatively, the waterproof membrane 110 can also be attached to the same side of the closure band body 130 as the dome links 132, in a manner that avoids the dome links 132. The disclosure does not restrict the relative placement of the dome links 132 of the waterproof closure band 100 and the waterproof membrane 110, which can be adapted according to requirements.

[0036] Furthermore, according to the in Fig. In the embodiment shown in Figure 1, the waterproof membrane 110 is attached at a boundary B between the transparent layer 112 and the colored layer 114 to produce a color gradient. The color gradient refers to a phenomenon in which the boundary B between the transparent layer 112 and the colored layer 114 does not form a total dividing line, but rather the color density of the colored layer 114 shifts towards the transparent layer 112. For example, in the Fig.In the manufacturing process shown in Figure 2, when the transparent layer 112 is still in a semi-dry state, the colored layer 114 is then prepared. In this way, some of the liquid dye from the subsequently formed colored layer 114 mixes with some of the previously formed transparent layer 112, which is still in a semi-dry state, so that the color gradient is produced at the boundary B between the transparent layer 112 and the colored layer 114. This improves the adhesion between the transparent layer 112 and the colored layer 114. That is, the transparent layer 112 and the colored layer 114 are not easily separated.At this time, at least part of the other side of the previously formed transparent layer 112, located opposite the colored layer 114, is in a dry and undyed (unmixed) state, so that even if a color gradient is formed at the boundary B between the transparent layer 112 and the colored layer 114, the transparent layer 112 can still guarantee the colorfastness of the colored layer 114. However, the disclosure does not restrict whether a color gradient is formed at the boundary B between the transparent layer 112 and the colored layer 114, which can be adapted according to the requirements.

[0037] Furthermore, according to one embodiment, the waterproof membrane 110 and the adhesion layer 120 are made of water-based material. The water-based material used to manufacture the waterproof membrane 110 and the adhesion layer 120 can, for example, be aqueous polyurethane. "Aqueous" as described here means that water is used as the dispersion medium. The aqueous polyurethane used in the embodiment can be any aqueous polyurethane known to those skilled in the art; however, polyether-based polyurethane, polyester-based polyurethane, polycarbonate-based polyurethane, or polycaprolactone-based polyurethane and other materials with hydrophilic groups are preferably used. Polycarbonate-based polyurethane with hydrophilic groups is more preferred because of its resistance to hydrolysis, heat, oil, and wear, but the disclosure is not limited in this respect.The water-based material contains no organic solvents. This allows for an environmentally friendly manufacturing process and also reduces the exposure of operating personnel during the manufacturing process. Furthermore, even if the colorfastness of the waterproof membrane 110, made from the water-based material, is potentially reduced, the use of a two-layer structure in the waterproof closure tape 100, consisting of a transparent layer 112 and a colored layer 114, can serve as the waterproof membrane 110. In this way, the transparent layer 112 protects the colored layer 114 underneath, thus suppressing the colorfastness problems caused by the decrease in the waterproof membrane 110's colorfastness.However, the disclosure does not restrict the materials of the waterproof membrane 110 and the adhesion layer 120, and these can be adapted according to the requirements.

[0038] In summary, the waterproof closure tape of the disclosure comprises the waterproof membrane, the transparent layer, the colored layer layered below the transparent layer, the adhesion layer layered below the colored layer, and the closure tape body, which is attached below the colored layer of the waterproof membrane by the adhesion layer.In this way, the waterproof sealing tape of the disclosure, compared to the prior art which uses a single-layer structure formed by the mixed-layer coating where the dye is added directly to the waterproof material, employs a two-layer structure formed by the transparent layer and the colored layer to serve as a waterproof membrane. This allows the transparent layer to protect the underlying colored layer, thus suppressing the coloring problem caused by the decrease in colorfastness in the colored layer. Preferably, the waterproof membrane and the adhesive layer are made of a water-based material, enabling an environmentally friendly manufacturing process. Additionally, the waterproof membrane is applied to produce a color gradient at the boundary between the transparent and colored layers (e.g.,Applying the colored layer (when the transparent layer is not completely dry) improves adhesion between the transparent and colored layers. Similarly, the waterproof sealing tape can enhance colorfastness after dyeing, thus preventing staining of the colored layer.

[0039] Finally, it should be noted that the embodiments described above are used merely to illustrate the technical solution of the disclosure, but do not limit the disclosure. Although the disclosure has been described in detail with reference to the embodiments, it should be understood that an ordinary person skilled in the art can still adapt the technical solutions described in the embodiments or make equivalent substitutions for some or all of the technical features. However, the modifications or substitutions do not result in the essence of the corresponding technical solution differing from the scope of the technical solution described in the embodiments of the disclosure. REFERENCE MARK LIST 50 Transport device 52 Basic material 54a first coating unit 54b second coating unit 56a first drying unit 56b second drying unit 100 waterproof sealing tape 110 waterproof membrane 112 transparent layers 114 colored layer 120 adhesion layer 130 closure strap bodies 132 Dome link B border T1, T11, T12, T2, T3 thickness

Claims

Waterproof closure band (100) comprising: a waterproof membrane (110) having a transparent layer (112) and a colored layer (114) layered below the transparent layer (112), an adhesion layer (120) layered below the colored layer (114) and a closure band body (130) which is attached below the colored layer (114) of the waterproof membrane (110) by the adhesion layer (120), characterized in that a boundary (B) between the transparent layer (112) and the colored layer (114) does not form a total dividing line. Waterproof closure band (100) according to claim 1, wherein the waterproof membrane (110) and the adhesion layer (120) are each made of a water-based material. Waterproof closure tape (100) according to claim 1, wherein the waterproof membrane (110) is attached to produce a color gradient at a boundary (B) between the transparent layer (112) and the colored layer (114). Waterproof sealing tape (100) according to any one of claims 1 to 3, wherein a thickness (T1) of the waterproof membrane (110) is 1 / 21 or more and 1 / 11 or less of a thickness (T3) of the waterproof sealing tape (100). Waterproof closure tape (100) according to one of claims 1 to 3, wherein a thickness (T1) of the waterproof membrane (110) is 30 µm or more and 60 µm or less. Waterproof closure tape (100) according to one of claims 1 to 3, wherein a thickness (T12) of the colored layer (114) is equal to or greater than a thickness (T11) of the transparent layer (112). Waterproof sealing tape (100) according to any one of claims 1 to 3, wherein a thickness (T12) of the colored layer (114) is 1 / 32 or more and 1 / 16 or less of a thickness (T3) of the waterproof sealing tape (100). Waterproof sealing tape (100) according to one of claims 1 to 3, wherein a thickness (T12) of the colored layer (114) is 20 µm or more and 40 µm or less. Waterproof sealing tape (100) according to any one of claims 1 to 3, wherein a thickness (T11) of the transparent layer (112) is 1 / 128 or more and 1 / 32 or less of a thickness (T3) of the waterproof sealing tape (100). Waterproof sealing tape (100) according to one of claims 1 to 3, wherein a thickness (T11) of the transparent layer (112) is 5 µm or more and 20 µm or less. Waterproof sealing tape (100) according to any one of claims 1 to 3, wherein a thickness (T2) of the adhesion layer (120) is 1 / 5 or more and 1 / 4 or less of a thickness (T3) of the waterproof sealing tape (100). Waterproof sealing tape (100) according to one of claims 1 to 3, wherein a thickness (T2) of the adhesion layer (120) is 120 µm or more and 160 µm or less. Waterproof closure tape (100) according to any one of claims 1 to 3, wherein a thickness (T2) of the adhesion layer (120) is 2 times or more and 5 times or less than a thickness (T1) of the waterproof membrane (110). Waterproof sealing tape (100) according to any one of claims 1 to 3, wherein a thickness (T3) of the waterproof sealing tape (100) is 600 µm or more and 700 µm or less. Waterproof closure band (100) according to one of claims 1 to 3, wherein the closure band body (130) is provided with dome members (132) and the dome members (132) and the waterproof membrane (110) are attached on opposite sides of the closure band body (130). Manufacturing method for a waterproof closure band (100), wherein the waterproof closure band (100) comprises: a waterproof membrane (110) with a transparent layer (112) and a colored layer (114) layered below the transparent layer (112), an adhesion layer (120) layered below the colored layer (114), and a closure band body (130) which is attached below the colored layer (114) of the waterproof membrane (110) by the adhesion layer (120), wherein the manufacturing method comprises: providing the colored layer (114) on the transparent layer (112) when the transparent layer (112) is still in a semi-dry state.

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