Masking sheets and masking sheet rolls

Abstract

To provide masking sheets and masking sheet rolls with superior workability. [Solution] One embodiment of the present invention is a masking sheet with adhesive tape. The masking sheet with adhesive tape comprises a sheet, a single-sided adhesive tape provided along one of a pair of opposing sides of the sheet, and a double-sided adhesive tape provided along the other side. The single-sided adhesive tape comprises a base material A1 and an adhesive layer A2 provided on one main surface of the base material A1, and is attached to one surface of the sheet such that a portion of the adhesive layer A2 protrudes to the outside of the sheet. The double-sided adhesive tape comprises a base material B1, an adhesive layer B2 provided on one main surface of the base material B1, an adhesive layer B3 provided on the other main surface of the base material B1, and a release layer B4 covering the adhesive layer B3, and the adhesive layer B2 side of the double-sided adhesive tape is attached to the other surface of the sheet.

Description

[Technical Field]

[0001] This invention relates to a masking sheet and a roll of masking sheet. [Background technology]

[0002] When painting, it is common practice to cover areas that are not to be painted with sheets or other materials to prevent paint from adhering to areas other than those that are not to be painted (masking).

[0003] To facilitate such masking work, a masker has been developed in which adhesive tape is attached along the edge of a protective sheet of a predetermined width. When using a masker, the protective sheet is secured by attaching the pre-applied adhesive tape to the painted area when covering the painted area with the protective sheet, thus simplifying the masking process.

[0004] Furthermore, Patent Document 1 discloses a masking tape that improves tearability and other properties by using a predetermined adhesive tape and protective sheet. [Prior art documents] [Patent Documents]

[0005] [Patent Document 1] Japanese Patent Publication No. 2013-249436 [Overview of the Initiative] [Problems that the invention aims to solve]

[0006] While masking work is made easier by using conventional masking tapes, there is a need for materials that can further improve the efficiency of masking work.

[0007] Therefore, the object of the present invention is to provide a masking sheet and a masking sheet roll that offer superior workability. [Means for solving the problem]

[0008] The inventors of this invention have conducted thorough research and found that the above problems can be solved by a masking sheet having a specific configuration. That is, the present invention is as follows.

[0009] One embodiment of the present invention is a masking sheet with adhesive tape. The masking sheet with adhesive tape comprises a sheet, a single-sided adhesive tape provided along one of a pair of opposing sides of the sheet, and a double-sided adhesive tape provided along the other side. The aforementioned one-sided adhesive tape comprises a base material A1 and an adhesive layer A2 provided on one main surface of the base material A1, and is attached to one side of the sheet such that a portion of the adhesive layer A2 protrudes outward from the sheet. The double-sided adhesive tape comprises a base material B1, an adhesive layer B2 provided on one main surface of the base material B1, an adhesive layer B3 provided on the other main surface of the base material B1, and a release layer B4 covering the adhesive layer B3, with the adhesive layer B2 side of the double-sided adhesive tape being attached to the other surface of the sheet.

[0010] It is preferable that the sheet is folded or rolled up so that a pair of opposing sides of the sheet are close together. It is preferable that when the sheet is unfolded, the distance between the pair of opposing sides becomes 100 mm or more. Preferably, at least one of the base material A1 and the base material B1 is a flexible polyvinyl chloride film, a polyolefin resin film, crepe paper, or Japanese paper. The aforementioned masking sheet with adhesive tape is preferably for use in vehicle painting.

[0011] Another embodiment of the present invention is a masking sheet roll in which the adhesive tape-attached masking sheet is wound in the direction of the pair of opposing sides. [Effects of the Invention]

[0012] According to the present invention, there are provided a masking sheet and a masking sheet roll body with better workability.

Brief Description of the Drawings

[0013] [Figure 1] FIG. 1 is a conceptual side view of a certain form of a masking sheet with an adhesive tape. [Figure 2] FIG. 2 is a conceptual perspective view of another form of a masking sheet with an adhesive tape. [Figure 3] FIGS. 3(1)-(3) are each a conceptual side view of yet another form of a masking sheet with an adhesive tape. [Figure 4] FIG. 4 is a conceptual perspective view of a masking sheet roll body. [Figure 5] FIGS. 5(1)-(3) are conceptual diagrams showing the usage method of a masking sheet with an adhesive tape.

Embodiments for Carrying Out the Invention

[0014] In the following, when the upper limit value and the lower limit value are described separately, it is considered that a numerical range combining any upper limit value and any lower limit value is substantially disclosed.

[0015] Hereinafter, the overall configuration, each part configuration, and usage method of the masking sheet 100 with an adhesive tape according to the present disclosure will be described. The present invention is not limited to these in any way.

[0016] <<<Overall Configuration>>> FIG. 1 is a conceptual side view of the masking sheet 100 with an adhesive tape according to the present disclosure.

[0017] As shown in FIG. 1, the masking sheet 100 with an adhesive tape according to the present disclosure has a sheet 10, a single-sided adhesive tape 20, and a double-sided adhesive tape 30.

[0018] The sheet 10 has a pair of opposing sides, which are designated as side 11 and side 12. The single-sided adhesive tape 20 is provided along side 11, and the double-sided adhesive tape 30 is provided along side 12 of the sheet 10. The single-sided adhesive tape 20 is attached to one side 13 of the sheet 10, and the double-sided adhesive tape 30 is attached to the other side 14 of the sheet 10.

[0019] The single-sided adhesive tape 20 has a base material A1 and an adhesive layer A2 provided on one main surface of the base material A1. The single-sided adhesive tape 20 is attached to the sheet 10 such that a portion of the adhesive layer A2 extends outwards from the sheet 10. The portion of the adhesive layer A2 that extends outwards from the sheet 10 is referred to as the adhesive region TA.

[0020] The double-sided adhesive tape 30 comprises a base material B1, an adhesive layer B2 provided on one main surface of the base material B1, an adhesive layer B3 provided on the other main surface of the base material B1, and a release layer B4 covering the adhesive layer B3. When using the masking sheet 100 with adhesive tape, the release layer B4 is peeled off, exposing the adhesive layer B3.

[0021] As shown in Figure 1, the adhesive tape-attached masking sheet 100 allows for easy positioning on the object to be masked by the adhesive area TA provided on one side of the adhesive tape 20. Furthermore, because the double-sided adhesive tape 30 is provided, the adhesive tape-attached masking sheet 100 can be easily fixed by first attaching the single-sided adhesive tape 20 to the object and then attaching the double-sided adhesive tape 30 to the object. In addition, since the double-sided adhesive tape 30 is already provided on the adhesive tape-attached masking sheet 100, there is no need to apply new adhesive tape during the masking work, and wrinkles in the sheet 10 are less likely to occur, thus improving masking performance. Moreover, since the adhesive layer B3 of the double-sided adhesive tape 30 of the adhesive tape-attached masking sheet 100 is provided with a release layer B4, the adhesive layer B3 is prevented from unnecessarily adhering to surfaces other than the object to be masked, resulting in excellent storability and workability. As described above, the adhesive tape-attached masking sheet 100 makes it possible to perform masking work efficiently and accurately.

[0022] From the standpoint of improving practicality during masking, the sheet width L1 of the sheet 10 (the distance between a pair of opposing sides of the sheet 10 when it is unfolded) is preferably 100 mm or more, 300 mm or more, 500 mm or more, 800 mm or more, 1000 mm or more, 1500 mm or more, 1800 mm or more, 2000 mm or more, or 3000 mm or more.

[0023] The double-sided adhesive tape 30 is preferably applied near the other side 12 of the sheet 10. Furthermore, from the viewpoint of improving workability, it is preferable that the double-sided adhesive tape 30 is configured so that it does not protrude outside the sheet 10. When the distance from the other side 12 to the end of the double-sided adhesive tape 30 (the end on the other side 12) is defined as length X, length X is preferably 1 mm or more, 5 mm or more, or 8 mm or more, depending on the sheet width L1 and the width of the double-sided adhesive tape 30, and is also preferably 100 mm or less, 50 mm or less, or 30 mm or less. From another viewpoint, it is preferable that the double-sided adhesive tape 30 is applied at a position where length X is [(sheet width L1) / 3] or less, [(sheet width L1) / 5] or less, or [(sheet width L1) / 10] or less.

[0024] As shown in Figure 2, it is preferable that the masking sheet 100 with adhesive tape has a structure in which the sheet 10 is folded so that a pair of opposing sides of the sheet 10 (one side 11 and the other side 12) are close together. Note that in Figures 2 and later, the layer structure constituting the single-sided adhesive tape 20 and the double-sided adhesive tape 30 is not shown.

[0025] Here, the state in which sheet 10 is deformed so that a pair of opposing sides of sheet 10 are close together is called the superimposed state. The state in which a pair of opposing sides of sheet 10 are separated is called the unfolded state. The width of sheet 10 (the distance between the pair of opposing sides when sheet 10 is in the unfolded state) is denoted as sheet width L1, and the width of sheet 10 in the superimposed state is denoted as superimposed width L2.

[0026] With this type of adhesive-backed masking sheet 100, the sheet width L1 of the sheet 10 in the unfolded state is larger than the overlapping width L2, so it offers excellent handling and storage in the overlapping state, and sufficient masking performance in the unfolded state (when in use). Furthermore, since the adhesive-backed masking sheet 100 is provided with adhesive tape 20 on one side, it is possible to perform the work of attaching the adhesive-backed masking sheet 100 to the object to be covered and the work of transforming the adhesive-backed masking sheet 100 into the unfolded state almost simultaneously, resulting in excellent workability.

[0027] The masking sheet 100 with adhesive tape shown in Figure 2 is folded from one side 11 so that the other side 14 touches, and then folded again so that the other side 13 touches, resulting in a total of two folds and a superimposed state. However, the method of deforming the masking sheet 100 with adhesive tape is not limited to this. Figures 3(1) to 3(3) show other forms of the masking sheet 100 with adhesive tape in a superimposed state. In all of the masking sheets 100 with adhesive tape shown in Figures 3(1) to 3(3), a single-sided adhesive tape 20 with an adhesive area TA and a double-sided adhesive tape 30 are provided at predetermined positions on the sheet 10, and the sheet 10 is deformed so that the superimposed width L2 is shorter than the sheet width L1 when unfolded. As shown in Figures 3(1) and (2), the location of folding the sheet 10, the number of folds, and the direction of folding can be changed as appropriate. Alternatively, as shown in Figure 3(3), the sheet 10 may be wrapped so that a pair of opposing sides of the sheet 10 (one side 11 and the other side 12) are close together, thereby creating a superimposed state of the adhesive tape-attached masking sheet 100.

[0028] The ratio of the overlapping width L2 to the sheet width L1 of sheet 10 (L2 / L1) is preferably 1 / 2 or less, 1 / 3 or less, or 1 / 5 or less.

[0029] The masking sheet 100 with adhesive tape can be manufactured by laminating a single-sided adhesive tape 20 and a double-sided adhesive tape 30 at predetermined positions on the surface of the sheet 10.

[0030] As shown in Figure 4, a masking sheet roll 200 can be constructed by winding the adhesive-taped masking sheet 100 in the direction of a pair of opposing sides (one side 11 and the other side 12). When constructing a masking sheet roll 200 by winding the adhesive-taped masking sheet 100, the adhesive region TA, which is formed to protrude from the sheet 10, comes into contact with the back surface of the adhesive tape 20 on one side, and the adhesive-taped masking sheet 100 is temporarily fixed in place. To facilitate the unrolling of the masking sheet roll 200, it is preferable that a release treatment is provided on the back surface of the adhesive tape 20 on one side.

[0031] By cutting such a roll of masking sheet 200, a masking sheet 100 with adhesive tape of a desired length can be obtained.

[0032] In Figure 4, an example is shown of a masking sheet roll 200 made from the adhesive tape-attached masking sheet 100 shown in Figure 2. However, it is possible to construct the masking sheet roll 200 using all of the adhesive tape-attached masking sheets 100 included in this disclosure.

[0033] <<<Each part configuration>>> <<Sheet 10>> The material of sheet 10 can be adjusted as appropriate considering the application, etc., and is not particularly limited. Sheet 10 is preferably a polyethylene film. The polyethylene film may be a stretched film. Sheet 10 may also be a multilayer film made by laminating multiple films.

[0034] The thickness of sheet 10 can be adjusted as appropriate considering the material and application of sheet 10, and is not particularly limited. The thickness of sheet 10 is preferably, for example, 2 μm or more, 5 μm or more, or 8 μm or more, and also preferably 300 μm or less, 150 μm or less, 100 μm or less, 50 μm or less, or 20 μm or less.

[0035] As described above, the adhesive tape-attached masking sheet 100 according to this disclosure preferably has a folded structure. When considering that the adhesive tape-attached masking sheet 100 is folded in this way, the thickness may differ at the overlapping parts of the sheet 10, the parts where the single-sided adhesive tape 20 is attached, and the parts where the double-sided adhesive tape 30 is attached. In this case, by adjusting the balance of the thickness of the sheet 10, the single-sided adhesive tape 20, and the double-sided adhesive tape 30, the overall thickness of the adhesive tape-attached masking sheet 100 can be adjusted, which can improve workability, including stability when stacked for storage and reducing roll misalignment when rolled up.

[0036] Specifically, the thickness of the single-sided adhesive tape 20 relative to the thickness of the sheet 10 (single-sided adhesive tape 20 / sheet 10) is preferably 2.0 or more, 5.0 or more, or 10.0 or more, and also preferably 50.0 or less, 20.0 or less, or 15.0 or less. Furthermore, the thickness of the double-sided adhesive tape 30 relative to the thickness of the sheet 10 (double-sided adhesive tape 30 / sheet 10) is preferably 5.0 or more, 10.0 or more, or 20.0 or more, and also preferably 100.0 or less, 50.0 or less, or 30.0 or less. Furthermore, the ratio of the thickness of the double-sided adhesive tape 30 to the thickness of the single-sided adhesive tape 20 (double-sided adhesive tape 30 / single-sided adhesive tape 20) is preferably 1.0 or more, 1.5 or more, or 2.0 or more, and also preferably 10.0 or less, 5.0 or less, or 3.0 or less.

[0037] Sheet 10 may contain conventionally known additives such as ultraviolet absorbers, antistatic agents, flame retardants, and colorants.

[0038] <<Base material A1, base material B1>> The base materials A1 and B1 are not particularly limited and can be conventionally known materials that constitute the base materials of adhesive tapes (especially masking tapes). At least one (preferably both) of base materials A1 and B1 is preferably a flexible polyvinyl chloride film, a polyolefin resin film (e.g., polyethylene film, polypropylene film), crepe paper, or Japanese paper. Using such base materials makes it easier to fix the masking sheet 100 with adhesive tape to the object to be attached (especially vehicle components, etc.). Other base materials (e.g., cloth, metal foil, etc.) may also be used as base materials A1 and B1.

[0039] The thickness of base material A1 and base material B1 can be appropriately changed depending on the material and application, and is not particularly limited. From the viewpoint of improving workability, the thickness of base material A1 and base material B1 is preferably 10 μm or more, 30 μm or more, or 50 μm or more, and preferably 300 μm or less, 250 μm or less, or 200 μm or less. From another viewpoint, the basis weight of base material A1 and base material B1 is preferably 10 g / m² each. 2 More than 20g / m 2 Above, or 40g / m² 2 Preferably, it should be 200g / m² or more. 2 Below 150g / m 2 The following, or 100g / m 2 The following is preferable:

[0040] Substrates A1 and B1 may be surface-treated. For example, a primer layer may be provided between substrate A1 and adhesive layer A2, or a primer layer may be provided between substrate B1 and adhesive layer B2 and / or adhesive layer B3. Also, as mentioned above, the back surface of substrate A1 may be treated with a release agent.

[0041] Base material A1 and base material B1 may each contain conventionally known additives such as ultraviolet absorbers, antistatic agents, flame retardants, and colorants.

[0042] <<Adhesive layer A2, Adhesive layer B2, Adhesive layer B3>> The adhesives constituting the adhesive layer A2, the adhesive layer B2, and the adhesive layer B3 can be appropriately changed according to the material of the sheet 10 and the application (such as the material of the adherend), and are not particularly limited. Examples of the adhesive include acrylic adhesives, rubber adhesives, urethane adhesives, and the like.

[0043] The thicknesses of the adhesive layer A2, the adhesive layer B2, and the adhesive layer B3 can be appropriately changed according to the material, application, etc., and are not particularly limited. From the viewpoint of enhancing workability, etc., the thicknesses of the adhesive layer A2 and the adhesive layer B3 are preferably 5 μm or more, 10 μm or more, or 20 μm or more, and preferably 300 μm or less, 200 μm or less, 100 μm or less, or 50 μm or less. Also, from another viewpoint, the basis weight of the adhesive layer A2 and the adhesive layer B3 is preferably 5 g / m 2 or more, 10 g / m 2 or more, or 20 g / m 2 or more, and preferably 300 g / m 2 or less, 200 g / m 2 or less, 100 g / m 2 or less, or 50 g / m 2 or less.

[0044] The adhesive layer A2, the adhesive layer B2, and the adhesive layer B3 may each contain conventionally known additives such as softeners, fillers, antioxidants, heat stabilizers, ultraviolet absorbers, antistatic agents, flame retardants, foaming agents, and colorants.

[0045] <<Release layer B4>> The material of the release layer B4 only needs to have sufficient releasability in consideration of the type of adhesive used, etc., and is not particularly limited.

[0046] The thickness of the release layer B4 can be appropriately changed according to the material, application, etc., and is not particularly limited. The thickness of the release layer B4 is preferably 10 μm or more, 30 μm or more, or 50 μm or more, and preferably 300 μm or less, 250 μm or less, or 200 μm or less.

[0047] <<<How to use>>> The method of using the adhesive tape-attached masking sheet 100 relating to this disclosure is not particularly limited.

[0048] Figures 5(1) to (3) show an example of how to use the adhesive tape-attached masking sheet 100 shown in Figure 2. As shown in Figures 5(1) and (2), the adhesive tape-attached masking sheet 100 is brought close to the object to be attached a, which includes painted and unpainted areas, and positioned so that the unpainted area is covered with the single-sided adhesive tape 20 and the sheet 10, and the adhesive area TA of the single-sided adhesive tape 20 is brought into contact with the object to be attached a. Next, as shown in Figure 5(3), the adhesive tape-attached masking sheet 100 is stretched in the width direction of the sheet 10 to unfold the adhesive tape-attached masking sheet 100, the release layer B4 (not shown) is peeled off from the double-sided adhesive tape 30 to expose the adhesive layer B3 (not shown), and the adhesive layer B3 is brought into contact with the object to be attached a. In this way, the adhesive tapes (single-sided adhesive tape 20 and double-sided adhesive tape 30) provided on both sides in the width direction of the adhesive tape-attached masking sheet 100 come into contact with the object to be attached a, thereby fixing the adhesive tape-attached masking sheet 100 to the object to be attached a.

[0049] The object to which the adhesive tape-attached masking sheet 100 is applied is not particularly limited. Due to its excellent workability, the adhesive tape-attached masking sheet 100 is preferably applicable for masking objects with complex shapes, and is particularly preferably applicable for vehicle painting. The adhesive tape-attached masking sheet 100 can also be applied to other conventionally known applications (such as painting the exterior and interior walls of buildings). [Examples]

[0050] The present invention will be described in more detail below with reference to examples, but the present invention is not limited to the following.

[0051] <<<Components>>> The following materials were prepared to make up the masking sheet.

[0052] <<Sheet>> Material: PE Width: 100mm, 500mm, 1000mm, 2000mm Thickness: 10 μm

[0053] <<Single-sided adhesive tape>> <Base material> Material:PVC Thickness: 90 μm Width: 20mm <Adhesive layer> Material: Acrylic adhesive Thickness: 30 μm (Total tape thickness of single-sided adhesive tape: 120 μm)

[0054] <<Double-sided adhesive tape>> <Base material> Material:PVC Thickness: 90 μm Width: 15mm <Adhesive layer> Material: Acrylic adhesive Adhesive thickness on side I: 30 μm Adhesive thickness on side II: 30 μm <Exfoliation layer> Thickness: 100 μm (Total tape thickness of double-sided adhesive tape: 250 μm)

[0055] <<<Making masking sheets with adhesive tape>>> The masking sheets with adhesive tape according to Examples 1-5 and Comparative Examples 1-8 were prepared as follows. Table 1-2 shows the materials used in the preparation of each masking sheet with adhesive tape, and an outline of the configuration of each masking sheet with adhesive tape.

[0056] <<Examples 1-3>> On each sheet, one opposite side along the width direction is designated as the top, and the other side as the bottom. Sheets with widths of 500mm, 1000mm, or 2000mm were used. The single-sided adhesive tape (20 mm wide) was attached along the top of the sheet so that a 10 mm width protruded from the sheet (so that the width of TA in Figure 1, etc., was 10 mm). The double-sided adhesive tape (15 mm wide) was attached along the bottom of the sheet so that the distance from the bottom of the sheet was 10 mm (so that the width of X in Figure 2, etc., was 10 mm). A masking sheet with adhesive tape was created by folding the sheet so that the distance between the top and bottom edges was 300 mm (so that the overlapping width L2 in Figure 2, etc., was 300 mm).

[0057] <<Examples 4-5>> Masking sheets with adhesive tape according to Example 4-5 were prepared in the same manner as in Example 1, except that 100mm wide and 500mm wide sheets were used and the sheets were not folded.

[0058] <<Comparative Example 1-3>> A masking sheet with adhesive tape according to Comparative Example 1-3 was prepared in the same manner as in Example 1-3, except that double-sided adhesive tape was not used, and instead, the single-sided adhesive tape (20 mm wide) was applied along the underside of the sheet so that a 10 mm width protruded from the sheet (so that the width of TA in Figure 1, etc., was 10 mm).

[0059] <<Comparative Example 4-8>> A masking sheet with adhesive tape according to Comparative Example 4-8 was prepared in the same manner as in Examples 1-5, except that double-sided adhesive tape was not used.

[0060] [Table 1]

[0061] [Table 2]

[0062] <<<Rating>>> The adhesive masking sheets for each example and comparative example were actually applied to the object to be attached, and their workability was confirmed. More specifically, when the adhesive masking sheet was actually fixed to the object to be attached, it was evaluated from the perspective of whether it was easy to position on the object to be attached, whether it had sufficient masking properties, whether the masking sheet was easy to fix, and whether it was easy to apply to the object to be attached. When applying the adhesive-backed masking sheet, positioning is performed by applying the adhesive tape on one side of the upper part of the sheet to the object to be attached. For adhesive-backed masking sheets with double-sided adhesive tape, after positioning, the release layer is peeled off from the double-sided adhesive tape, and the exposed adhesive layer is applied to the object to be attached, thereby securing it to the object. For adhesive-backed masking sheets without adhesive tape on the lower side, after positioning, the single-sided adhesive tape is applied along the lower side of the sheet to secure it to the object to be attached.

[0063] The masking sheets with adhesive tape according to each embodiment were found to be easy to position on the object to be attached, easy to fix, and did not experience problems such as the tape sticking to the underside of the sheet, resulting in excellent workability and sufficient functionality as a masking sheet. In particular, the masking sheets with adhesive tape according to Examples 1-3 were folded, which provided high masking performance while also making them easy to position and attach to the object to be attached, resulting in excellent overall workability. On the other hand, when using the adhesive tape-attached masking sheets in each comparative example, problems such as adhesive issues with the adhesive tape on one side of the underside of the sheet, insufficient fixing of the underside of the sheet, and the difficulty in applying the adhesive tape on one side of the underside of the sheet were common, resulting in poor overall workability. [Industrial applicability]

[0064] The adhesive masking sheet disclosed herein offers excellent workability and can therefore be applied as a component used in masking work in various painting processes, including vehicle painting. [Explanation of Symbols]

[0065] 100 masking sheets with adhesive tape 200 Masking Sheet Rolls 10 sheets 11 One side 12 The other side 13 One side 14 The other side 20 Single-sided adhesive tape 30 Double-sided adhesive tape A1, B1 base material A2, B2, B3 adhesive layer B4 Release layer TA adhesive area L1 Seat width L2 Overlap width a Object to be adhered to

Claims

1. The seat and The sheet has a single-sided adhesive tape provided along one of the pair of opposing sides, and a double-sided adhesive tape provided along the other side. The aforementioned one-sided adhesive tape comprises a base material A1 and an adhesive layer A2 provided on one main surface of the base material A1, and is attached to one surface of the sheet such that a portion of the adhesive layer A2 protrudes outward from the sheet. The double-sided adhesive tape comprises a base material B1, an adhesive layer B2 provided on one main surface of the base material B1, an adhesive layer B3 provided on the other main surface of the base material B1, and a release layer B4 covering the adhesive layer B3, wherein the adhesive layer B2 side of the double-sided adhesive tape is attached to the other surface of the sheet, and is a masking sheet with adhesive tape.

2. The sheet is folded or rolled up such that a pair of opposing sides of the sheet are close together. The masking sheet with adhesive tape according to claim 1, wherein when the sheet is unfolded, the distance between the pair of opposing sides becomes 100 mm or more.

3. The masking sheet with adhesive tape according to claim 1 or 2, wherein at least one of the base material A1 and the base material B1 is a flexible polyvinyl chloride film, a polyolefin resin film, crepe paper, or Japanese paper.

4. A masking sheet with adhesive tape according to claim 1 or 2, for use in painting vehicles.

5. A masking sheet roll body, comprising a masking sheet with adhesive tape according to claim 1 or 2, wound in the direction of the pair of opposing sides.

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