Rolled materials

Abstract

To ensure quality of a roll material.SOLUTION: A packaging roll material is obtained by winding a piece of belt-like paper material 12, and partially laminating a seal material in advance onto the paper material 12. The packaging roll material comprises: a first additional part 14a, which is provided on the paper material 12 continuously in a roll peripheral direction D1 along one end edge S1 in a roll axial direction D2, and in which a one-end seal material being at least part of the seal material, is laminated in advance in a thickness direction with respect to the paper material 12, so as to add a thickness in a roll diameter direction of the paper material 12; and a second additional part 15a, which is provided on the paper material 12 continuously in the roll peripheral direction D1 along the other end edge S2 in the roll axial direction D2, in which a laminate material is laminated in advance in the thickness direction with respect to the paper material 12, so as to add a thickness in the roll diameter direction of the paper material 12.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a roll material for packaging, in which a sealing material is partially pre-laminated on a roll of paper material. [Background technology]

[0002] 2. Description of the Related Art As one type of packaging material, a material in which a sealing material is pre-laminated onto a paper material is known. For example, as shown in Fig. 12, a roll material 1 is known in which a strip-shaped paper material 2 is wound into a roll and a sealing material such as an adhesive or pressure-sensitive adhesive is pre-laminated on this paper material (see Patent Documents 1 and 2). Also, as shown in Fig. 13, a pattern is known in which the sealing material 4 laminated on the paper material 2A is provided continuously on one edge S1 in the strip width direction but not on the other edge S2 in the strip width direction (see Patent Document 3). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2013-99493 [Patent Document 2] Japanese Patent Application Laid-Open No. 2015-117025 [Patent Document 3] Japanese Patent Application Laid-Open No. 2003-123128 Summary of the Invention [Problem to be solved by the invention]

[0004] However, as shown in FIG. 14 , in a roll material 1 in which a paper material laminated with a sealing material in the above-described pattern is wound, the sealing material is provided continuously on one axial edge S1 of the roll but not on the other axial edge S2, or is provided discontinuously. As a result, the thickness of the sealing material differs between the outer diameter d1 of one end of the roll in the axial direction and the outer diameter d2 of the other end of the roll in the axial direction. For example, a roll material wound with only paper material (shown by a two-dot chain line in FIG. 14 ) has a cylindrical outer shape, whereas a roll material 1 in which the sealing material is provided continuously only on one axial edge S1 of the roll (shown by a solid line in FIG. 14 ) may be distorted, for example, into a truncated cone shape. Such distortion of shape may result in wrinkles or kinks in the paper material or poor feeding performance, thereby reducing the quality of the roll material. Therefore, there is room for improvement in ensuring the quality of roll materials.

[0005] The present invention was conceived with a focus on these issues, and one of its objectives is to ensure the quality of roll materials. However, other objectives of the present invention are to achieve the effects and advantages derived from the various configurations shown in the "Mode for Carrying Out the Invention" below, which cannot be achieved with conventional technologies. [Means for solving the problem]

[0006] The roll material disclosed herein is a packaging roll material in which a strip-shaped sheet of paper material is wound into a roll and a sealing material is pre-laminated partially onto the paper material. The roll material includes: a first adding section that is continuously provided in the circumferential direction of the roll along one end edge of the paper material in the roll axial direction, and that adds thickness to the paper material in the roll radial direction by an end sealing material that is at least a part of the sealing material pre-laminated in the thickness direction on the paper material; and a second adding section that is continuously provided in the circumferential direction of the roll along the other end edge of the paper material in the roll axial direction, and that adds thickness to the paper material in the roll radial direction by a laminating material pre-laminated in the thickness direction on the paper material. [Effects of the Invention]

[0007] According to this invention, the quality of the roll material can be ensured. [Brief explanation of the drawings]

[0008] [Figure 1] FIG. 1 is a perspective view of a roll material according to a first embodiment. [Figure 2] 2A and 2B are cross-sectional views of the roll material shown in FIG. 1, where FIG. 2A shows a first embodiment and FIG. 2B shows a modified example thereof. [Figure 3] 2 is a front view of a packaging sheet formed from the roll material shown in FIG. 1. FIG. [Figure 4] FIG. 2 is a perspective view illustrating the outer diameter (winding diameter) of the roll material shown in FIG. [Figure 5] 4 is a perspective view illustrating a state in which contents are packaged in the packaging paper shown in FIG. 3. FIG. [Figure 6] FIG. 10 is a perspective view of a roll material according to a second embodiment. [Figure 7] FIG. 7 is a cross-sectional view of the roll material shown in FIG. 6. [Figure 8] FIG. 7 is a front view of a packaging sheet formed from the roll material shown in FIG. 6. [Figure 9] FIG. 10 is a cross-sectional view of a roll material according to a modified example of the second embodiment. [Figure 10] FIG. 10 is a front view of a packaging sheet formed from a roll material according to a modified example of the second embodiment. [Figure 11] 11A and 11B are front views of a packaging paper showing a sealing material layer and a laminate material layer according to the modified example shown in FIG. 10, where (a) shows the sealing material layer and (b) shows the laminate material layer. [Figure 12] FIG. 1 is a perspective view of a roll material according to the background art. [Figure 13] FIG. 10 is a perspective view of a main part for explaining the problem. [Figure 14] FIG. 1 is a perspective view of a roll material illustrating the problem. DETAILED DESCRIPTION OF THE INVENTION

[0009] A roll material will be described as an embodiment. The roll material is a packaging roll material in which a strip-shaped (also called "web-shaped") sheet of paper material is wound into a roll. In this embodiment, two embodiments are illustrated. In each embodiment, the roll material is used in a downstream portion of a production line for manufacturing products, where packaging sheets are cut to an appropriate length and used to package contents such as products. In each embodiment, an aggregate of multiple toilet rolls is illustrated as an example of the contents to be packaged.

[0010] The sealing material for the roll material is partially laminated onto the paper material in advance to join and seal the overlapping portions (overlapped portions) and folded portions (folded portions) that will be wrapped together during packaging. In the following description, the front and back sides of a paper material refer to the side that faces outward after packaging, and the back side refers to the side that faces inward (toward the contents) after packaging. In other words, one of the inside and outside sides of the paper material in the radial direction of the roll refers to either the front or back side, and the other of the inside and outside sides of the paper material in the radial direction of the roll refers to the other of the front or back side. In addition, the packaging form described in the following embodiments includes a clasped packaging (caramel packaging).

[0011] [I. First embodiment] [II. Configuration] As shown in Fig. 1, roll material 11 in this embodiment is a packaging material in which a strip-shaped paper material 12 is wound into a roll. Paper material 12 unwound from roll material 11 is cut to a required length in the longitudinal direction D1 (in the circumferential direction of the roll in the roll form), thereby forming a sheet 13 in the form of a single leaf as shown in Fig. 3. This sheet 13 is used to package contents 10 (here, a collection of toilet rolls), as shown in Fig. 5.

[0012] As shown in FIG. 1 and FIG. 2(a), a seal material 14 (one-end seal material) is continuously provided in the roll circumferential direction D1 on one end edge S1 of the front surface F1 of the paper material 12 in the roll axial direction D2. The sealing material layer 14a is laminated in advance. The sealing material layer 14a illustrated here is disposed in a strip-like region that is smaller than the paper material 12 in the roll axial direction. The sealing material layer 14a is a portion (first addition portion) that adds thickness in the roll radial direction of the paper material 12. Here, an example is given in which the sealing material layer 14a is formed to a predetermined thickness t1. Note that one edge S1 of the front surface F1 of the paper material 12 is the portion that is overlapped and joined facing the back surface F2 of the other edge S2 of the paper material 12 (see FIG. 5).

[0013] An adhesive is used for the sealing material 14 to join or seal overlapping or folded portions of packaging. Here, a heat-sensitive sealing material (so-called "hot melt adhesive") that exhibits adhesive properties when heat is applied is used as the adhesive. Note that the adhesive used here may also be a pressure-sensitive sealing material that exhibits adhesive properties when pressure is applied.

[0014] Furthermore, a laminate material layer 15a, in which the laminate material 15 is continuously provided in the roll circumferential direction D1, is pre-laminated on the other edge S2 of the front surface F1 of the paper material 12 in the roll axial direction D2. That is, the sealing material layer 14a and the laminate material layer 15a of this embodiment are arranged only on the front surface of the paper material 12 (either the inner or outer side in the roll radial direction of the paper material). The laminate material layer 15a illustrated here is arranged in a band-like region that is smaller in dimension in the roll axial direction than the paper material 12.

[0015] The laminated material layer 15a is a portion (second addition portion) that adds thickness in the radial direction of the roll of the paper material 12. This laminated material layer 15a functions as a spacer that increases the winding diameter on the other end edge S2 of the rolled material 11 in response to the increase in the winding diameter (outer diameter) on one end edge S1 of the rolled material 11 caused by the sealing material layer 14a. Here, we take as an example the laminated material layer 15a formed to a thickness t2 that is the same as or approximately the same as the thickness t1 of the sealing material layer 14a. Furthermore, even if the thickness t1 of the sealing material layer 14a and the thickness t2 of the laminated material layer 15a are different, the difference between these thicknesses t1 and t2 (the absolute value of "t1-t2") is assumed to be smaller than the thickness of the paper material 12.

[0016] The laminated material 15 illustrated here is an example in which a printing material such as ink that has been applied in advance (a printing layer that has been pre-laminated on the paper material 12) is applied. However, a sealing material similar to the sealing material 14 may also be applied to the laminated material 15 (the other end sealing material). In other words, of the sealing material that has been pre-laminated partially on the paper material 12, all of it may be sealing material 14 of sealing material layer 14a, or it may be laminated material 15 in which part of it is sealing material 14 of sealing material layer 14a and the other part is laminating material layer.

[0017] The other edge S2 of the front side F1 of the paper material 12, on which the laminated material layer 15a has already been laminated, is overlapped with the one edge S1, on which the sealing material layer 14a has already been laminated, by body bonding in preparation for packaging the caramel. In this overlapped state, the laminated material layer 15a of the other edge S2 is located outside the one edge S1 and is exposed, and will form the outer appearance after packaging (see Figure 5). The sealing material layer 14a and the laminating material layer 15a can be formed by laminating the sealing material 14 and the laminating material 15, respectively, on the front surface F1 of the paper material 22 in advance using a known method such as coating or printing.

[0018] [I-II. Actions and Effects] In the roll material 11 according to this embodiment, not only is a sealing material layer 14a pre-laminated on one end edge S1 in the roll axial direction D2 of the paper material 12, but a laminated material layer 15a is pre-laminated on the other end edge S2 in the roll axial direction D2. Therefore, compared to a roll material in which a sealing material is pre-laminated only on one end edge in the roll axial direction of the paper material, and the shape is distorted (see the solid line in Figure 14), it is possible to prevent the difference in outer diameter d between one side and the other side in the roll axial direction D2. In this way, distortion of the shape of the roll material 11 is suppressed, and wrinkles and creases do not form in the paper material 12. This also prevents the occurrence of cracks and prevents poor feeding of the paper material, thereby ensuring the quality of the roll material 1.

[0019] The sealing material layer 14a and the laminated material layer 15a illustrated here have the same or almost the same thickness, so that the outer diameter (winding diameter) d of the roll material 11 can be made uniform in the roll axial direction, as shown in Fig. 4. For reference, the two-dot chain line in Fig. 4 shows the outer diameter (winding diameter) of the roll material that does not have the sealing material layer and the laminated material layer. In the roll material 11 illustrated in this embodiment, both the sealing material layer 14a and the laminated material layer 15a are arranged only on the front surface F1 of the paper material 12, so these layers 14a, 15a can be provided simply by laminating them from the front surface (one side), which helps reduce manufacturing costs.

[0020] Furthermore, when printed material is used in the laminated material 15 of the laminated material layer 15a, since the laminated material layer 15a is the part that determines the appearance after packaging, the printed material that determines the appearance, such as color or pattern, can be used to prevent the shape of the roll material 11 from being distorted. Furthermore, when a sealing material is used in the laminated material 15 of the laminated material layer 15a, the sealing material layer 14a and the laminated material layer 15a in the paper material 12 unwound from the roll material 11 can be prevented from coming into contact with or being soiled by surrounding equipment, etc., compared to when the laminated material layer is pre-laminated on the back surface F2 of the paper material.

[0021] In addition, since a heat-sensitive sealing material is used for the sealing material 14, adhesion of the sealing material 14 to the rolled material 11 is suppressed, and the adhesive function can be exerted simply by heating during packaging, making it possible to stick the materials together during packaging. Similarly, when a pressure-sensitive sealing material is used for the sealing material 14, the adhesion of the sealing material 14 to the rolled material 11 is suppressed, and the adhesive function can be exerted simply by applying pressure during packaging, making it possible to stick the material together during packaging.

[0022] [I-III. Variations] In the first embodiment described above, an example was described in which both the sealing material layer 14a and the laminate material layer 15a were arranged on the front surface F1. However, the present invention is not limited to this configuration, and the sealing material layer 14a may be arranged on one of the front surface F1 and the back surface F2 of the paper material 12, and the laminate material layer 15a may be arranged on the other of the front surface F1 and the back surface F2 of the paper material 12.

[0023] Specifically, as shown in FIG. 2(b), a sealant layer 14a may be provided on the front surface F1 of one edge S1, and a laminated material layer 15a may be provided on the back surface F2 of the other edge S2. In this case, the back surface F2 of the other edge S2 is not exposed and cannot be seen, and therefore, using a printed material on the laminated material 15 does not improve the appearance, so it is preferable to apply a sealant to the laminated material 15. This configuration allows the sealant layer 14a of the sealant 14 and the laminated material layer 15a formed from the sealant to be bonded together (i.e., the sealants are bonded together). This type of bonding is suitable for body attachment, preventing unnecessary adhesion of the laminated material layer 15a to the contents and also preventing exposure of the laminated material layer 15a where the sealant is used. The lamination arrangement shown in FIG. 2(b) may be reversed, with the sealing material layer 14a provided on the back surface F2 of one edge S1 and the laminate material layer 15a provided on the front surface F1 of the other edge S2.

[0024] [II. Second Embodiment] [II-I. Configuration] As shown in Figure 6, roll material 21 of this embodiment also has paper material 22 wound in a roll shape. Paper material 22 unwound from roll material 21 is cut to the required length in the longitudinal direction D1 (in the circumferential direction of the roll when in roll form) to form sheet-like sheets 23 as shown in Figure 8, and a collection of toilet rolls, which is content 10, is packaged in these sheets 23.

[0025] 6 and 7, a sealing material layer 24a (first added portion) is provided in the roll circumferential direction D1 at one end edge S1 in the roll axial direction D2 of the back surface F2 of the paper material 22, and a sealing material layer 25a (second added portion) is provided at the other end edge S2 in the roll axial direction D2. That is, the sealing material layers 24a, 25a in this embodiment are disposed only on the back surface of the paper material 22 (either the inner or outer side in the roll radial direction of the paper material). The roll material 21 of this embodiment is also provided with sealing material layers 26a and 27a that are continuously provided in the roll axial direction D2.

[0026] The sealing material layers 26a, 27a are provided intermittently in the roll circumferential direction D1, and are portions (third addition portions) that add thickness to the paper material 22 in the roll radial direction by using an adhesive (sealing material) that has been pre-laminate on the paper material 22. That is, the sealing material layers 26a, 27a use a portion of the adhesive (intermittent sealing material) that has been pre-laminate on the paper material 22, excluding the adhesive of the sealing material layers 24a, 25a at the edges S1, S2. These sealing material layers 26a, 27a are arranged so as to connect the sealing material layers 24a, 25a to each other in the roll axial direction D2, and here, an example is given in which they are provided in a strip shape. The sealing material layers 24a, 25a, 26a, and 27a can be formed by applying or printing the sealing materials 24, 25, 26, and 27 onto the back surface F2 of the paper material 22 in a uniform or approximately uniform thickness, respectively.

[0027] The sealing material layers 26a, 27a, which are continuous in the roll axial direction D2, are provided intermittently in the roll circumferential direction D1 at intervals corresponding to the length required when cutting the paper material 22 in the longitudinal direction D1, as shown in Fig. 6. As a result, as shown in Fig. 8, the sealing material layers 24a, 25a, 26a, 27a are formed in a rectangular shape around the entire outer periphery of the four sides of the individual sheet 23 when viewed from the front.

[0028] For example, when the back surface F2 of one edge S2 of the paper material 22 is placed on the outside of the edge S1 of the front surface F1, the sealing material 25 of the sealing material layer 25a provided on the back surface F2 of the other edge S2 is used for body bonding. In this type of packaging, the sealing material 24 of the sealing material layer 24a provided on the back surface F2 of the one edge S1 does not contribute to bonding for packaging, but faces the contents when packaged.

[0029] Conversely, when the back surface F2 of one edge S1 of the paper material 22 is placed on the outside of the other edge S2 of the front surface F1, the sealing material 24 of the sealing material layer 24a provided on the back surface F2 of the one edge S1 is used for body bonding. In this type of packaging, the sealing material 25 of the sealing material layer 25a provided on the back surface F2 of the other edge S2 does not contribute to bonding for packaging, but faces the contents when packaged.

[0030] The sealing materials 26 and 27 of the sealing material layers 26a and 27a are used to join and seal the portion of the sheet 23 that is folded into the caramel packaging. The seal materials 24, 25, 26, and 27 forming the seal material layers 24a, 25a, 26a, and 27a can be heat-sensitive seal materials or pressure-sensitive seal materials, as in the first embodiment. However, the seal material layers 24a and 25a that do not contribute to the lamination for packaging can be made of any laminate material that adds thickness to the roll diameter direction of the paper material 22, such as the printing material exemplified in the first embodiment, instead of the seal materials 24 and 25.

[0031] [II-II. Actions and Effects] In the first embodiment of the roll material 11, since no sealing material or laminate material is provided between the sealing material layer 14a and the laminate material layer 15a, the area between these layers 14a, 15a can be shaped like a drum, with an outer diameter smaller than that of the area outside in the axial direction of the roll. In contrast, the roll material 21 according to this embodiment has a roll axial direction of the paper material 22. In addition to the sealing material layers 24a and 25a being provided on one end edge S1 and the other end edge S2 of D2, sealing material layers 26a and 27a are also provided continuously in the roll axial direction D2. Therefore, the outer diameter of the portion of the roll material 21 located between the sealing material layers 24a and 25a is raised by the sealing material layers 26a and 27a, and the difference in outer diameter between this portion and the portion on the outer side of this portion in the roll axial direction can be reduced.

[0032] This further reduces distortion of the shape of the roll material 21, further reduces wrinkles and kinks in the paper material 22, and further reduces problems with the paper material being fed out. This improves the quality of the roll material 21. In addition, the same configuration as that of the first embodiment among the configurations of the second embodiment can provide the same functions and effects as those of the first embodiment.

[0033] [II-III. Modifications] In the second embodiment described above, an example has been described in which the sealing material layers 24a, 25a, 26a, and 27a are all provided on the back surface F2 of the paper material 22. However, the present invention is not limited to this configuration, and at least a portion of the sealing material layers 24a, 25a, 26a, and 27a may be provided on the front surface F1. For example, as shown in Figures 9 to 11, U-shaped sealing material layers 24a, 26a, and 27a may be provided on the front surface F1 of paper material 22 cut into individual sheets 23, and U-shaped sealing material layers 25a, 26a, and 27a may be provided on the back surface F2 of paper material 22. In this case, as shown in Figure 11(a), sealing material layers 24a, 26a, and 27a are arranged in a U-shape on the edges of three of the four sides excluding the other edge S2 when viewed from the front. Also, as shown in Figure 11(b), sealing material layers 25a, 26a, and 27a are arranged in a U-shape on the edges of three of the four sides excluding one edge S1 when viewed from the front.

[0034] 11, sheet 23 has sealing material layers 24a, 25a, 26a, and 27a formed in a rectangular shape around the entire periphery of each of the four sides when viewed from the front. That is, sealing material layers 26a and 27a are formed on both front surface F1 and back surface F2 of sheet 23 to bond and seal the folded-in portions at both ends of content 10. By providing sealing materials 26 and 27 on both front surface F1 and back surface F2 of sheet 23 in this manner, the folded-in portions can be more reliably bonded and sealed.

[0035] Regarding the thickness of the sealing material layers 24a, 25a, 26a, and 27a, it is preferable that the double sealing material layers 26a and 27a are formed so as to have the same thickness as the single sealing material layers 24a and 25a. In addition, in the second embodiment (Figure 8) and its modified example (Figure 11), for the sealing material layers 24a, 25a, 26a, 27a that do not contribute to packaging bonding or part of them, any laminated material that adds thickness in the roll diameter direction of the paper material 22, such as the printing material exemplified in the first embodiment, can be used.

[0036] [III. Other] Although the embodiments have been described above, the present invention can be practiced by appropriately modifying the configurations of the above embodiments without departing from the spirit of the present invention. For example, the sealing material layers 26a and 27a described above in the second embodiment may be provided only in necessary areas. Furthermore, it is preferable that the thickness of the sealing material layers 26a and 27a (total thickness in the case of double-sided installation) is equal to or less than the thickness of the sealing material layers 24a and 25a (total thickness in the case of double-sided installation).

[0037] Furthermore, in the above embodiment, caramel packaging is used as an example of the packaging form, but the roll material of this invention is not limited to caramel packaging and may be applied to various packaging forms. The roll material according to the modified example of the second embodiment described with reference to FIGS. 9 to 11 is as follows: This type of roll material is suitable for caramel packaging because it can be attached to the body of the roll with the sealing material 24 (first addition portion) formed by the sealing material layer 24a on the front surface F1 and the sealing material 25 (second addition portion) formed by the sealing material layer 25a on the back surface F2 facing each other. The heat-sensitive sealing material of the sealing material layers 24a, 25a in this type of roll material for caramel packaging is used for body attachment by being pressed while heat is applied from a heat source that exerts the adhesive function of the heat-sensitive sealing material to the contents 10. When this body attachment method is adopted, the amount of heat applied to the heat-sensitive sealing material from the heat source tends to decrease as the in-line packaging speed increases. Therefore, by using sealing materials 24, 25 that are attached to the body of the roll with the sealing material layers 24a, 25a facing each other, the adhesive strength of the body attachment can be ensured even with a reduced amount of heat, thereby improving packaging efficiency (productivity).

[0038] Furthermore, in the seal material 26, 27 (third additional portion) of the roll material according to the modified example of the second embodiment described with reference to FIG. 10, the seal material layers 26a, 27a laminated on the front surface F1 and the seal material layers 26a, 27a laminated on the back surface F2 are preferably arranged so as not to overlap each other in a front view (plan view). Specifically, the seal material layers 26a, 27a on the front surface F1 are preferably arranged in stripes intermittently arranged along the roll circumferential direction D1 (i.e., areas where no seal material layer is provided are arranged intermittently along the roll circumferential direction D1), and the seal material layers 26a, 27a on the back surface F1 are preferably arranged in areas that overlap the intermittent areas where no seal material layer is provided on the front surface F1 in a front view. Even if the seal material layers 26a, 27a arranged in this manner are laminated to a thickness equivalent to that of the seal material layers 24a, 25a, the seal material 26, 27 does not have a double thickness (it has a thickness equivalent to that of the seal material 24). This reliably prevents distortion of the shape of the roll material 21, further reduces wrinkles and kinks in the paper material 22, and further reduces problems with the paper material being fed out. This improves the quality of the roll material 21. In addition, although a collection of toilet rolls has been given as an example of the contents to be packaged, the contents that can be packaged using the paper material of the roll material in this case are not limited to this and can be applied to various other contents. [Explanation of symbols]

[0039] 1,11,21 Roll materials 12,22 Paper materials 13,23 Individual sheets (sheets) 14, 24, 25, 26, 27 Sealing material 14a, 24a, 25a, 26a, 27a Sealing material layer 15 Laminated wood 15a Laminated material layer 2. Paper materials D1 Longitudinal direction (roll circumferential direction) d. Outer diameter (winding diameter) of roll material 21 D2 Roll axis direction F1 Front side of paper material 12 (sheet 13) F2 Back side of paper material 12 (sheet 13) S1: One edge of the roll axial direction D2 S2: The other edge of the roll in the axial direction D2 t1: thickness of the sealing material layer 14a t2: thickness of laminate layer 15a

Claims

1. A roll material for packaging, in which a strip-shaped sheet of paper material is wound into a roll, and a sealing material is pre-laminated on part of the paper material, a first adding section that is provided continuously in the roll circumferential direction along one end edge of the paper material in the roll axial direction, and that adds thickness to the paper material in the roll radial direction by an end sealing material that is at least a part of the sealing material that has been pre-laminated in the thickness direction of the paper material; a second adding section that is provided continuously in the roll circumferential direction along the other end edge of the paper material in the roll axial direction, and that adds thickness to the paper material in the roll radial direction by a laminated material that is pre-laminated in the thickness direction on the paper material; a third adding section that is provided continuously along the roll axis direction and intermittently in the roll circumferential direction on at least one of the inside and outside in the roll radial direction of the paper material, and that adds thickness to the paper material in the roll radial direction by an intermittent sealing material that is at least a part of the sealing material excluding the one end sealing material that has been pre-laminated in the thickness direction of the paper material; The first addition portion is disposed on one of the inner side and the outer side in the roll radial direction of the paper material, the second addition portion adds thickness in the roll radial direction of the paper material by the laminated material including the other end sealing material which is at least a part of the sealing material excluding the one end sealing material, and is arranged on one of the inside and outside of the roll radial direction of the paper material; The sealing material is provided only on the first addition portion, the second addition portion, and the third addition portion, and the first addition portion, the second addition portion, and the third addition portion are formed in a square shape in a plan view. A roll material characterized by:

2. The sealing material is a heat-sensitive or pressure-sensitive sealing material that exhibits adhesive function when heat or pressure is applied.

2. The roll material according to claim 1.

3. The second adding unit adds thickness to the paper material in the roll radial direction by the laminated material including a printed layer that is laminated on the paper material in advance.

3. The roll material according to claim 1 or 2.

4. The second additional portion is made of only the other end sealing material.

3. The roll material according to claim 1 or 2.

5. The third addition portion is disposed on only one of the inner side and the outer side in the roll radial direction of the paper material.

5. The roll material according to claim 1, wherein the roll material is a roll material having a thickness of 100 nm or less.

Images