Decorative sheet for absorbent product

Abstract

The utility model provides a decorative sheet for an absorptive product. The purpose of the present invention is to suppress deterioration in the appearance quality of a decorative sheet used in an individual packaging body for an absorbent article or a packaging body for an absorbent article. A decorative sheet (50) for an absorbent product is provided with: a sheet (51); an adhesive layer (52) provided on the surface of the sheet (51); and a decorative layer (53) which is provided on the adhesive layer (52), has a maximum thickness of 10 [mu] m or less, and protrudes from the surface of the sheet (51) in the thickness direction of the sheet (51). The amount of elongation (first elongation) of the decorative sheet (50) when the adhesive layer (52) is broken when the decorative sheet (50) is elongated in a direction having a high elongation strength in the longitudinal direction and the transverse direction is greater than the amount of elongation (second elongation) of the absorbent body (10) when the absorbent body (10) is broken when the absorbent body (10) is elongated in the width direction of the absorbent article (1).

Description

Technical Field

[0001] This utility model relates to a decorative sheet for absorbent products. Background Technology

[0002] Patent Document 1 discloses a method for manufacturing a decorative sheet in which a marking layer (text, graphics, etc.) made of foil with metallic components is formed on a material sheet. Specifically, the manufacturing method is as follows: a transfer film having foil and a material sheet are fed overlappingly between a pattern roller and a support roller, and a foil corresponding to the pattern on the outer peripheral surface of the pattern roller is pressed onto the material sheet to form a marking layer.

[0003] Existing technical documents

[0004] Patent documents

[0005] Patent Document 1: Japanese Patent Application Publication No. 2022-12041 Utility Model Content

[0006] Problems to be solved by utility models

[0007] In the decorative sheet of Patent Document 1, the labeling layer is formed by pressing foil together. In this case, the labeling layer and the material sheet are integrated by pressing, so the external force applied to the material sheet acts directly on the labeling layer, which is prone to cracking. When such decorative damage to the labeling layer reduces its appearance, users may worry whether the quality of the absorbent item being stored is also as poor as the decoration.

[0008] This invention was made in view of the aforementioned problems, and its purpose is to suppress the degradation of the appearance quality of decorative sheets used in individual packaging bodies or encapsulation bodies of absorbent articles.

[0009] Solution for solving the problem

[0010] The main utility model for achieving the above objectives is a decorative sheet for absorbent products, characterized in that...

[0011] The decorative sheet for this absorbent product is used on the individual packaging or encapsulation of the absorbent article and is decorated accordingly.

[0012] The decorative sheet used in this absorbent product has the following characteristics:

[0013] The film has mutually orthogonal longitudinal and transverse directions;

[0014] An adhesive layer is disposed on the surface of the sheet; and

[0015] A decorative layer, disposed above the adhesive layer, has a maximum thickness of less than 10 μm.

[0016] The decorative layer is located in a region that is visually visible to the user and protrudes from the surface of the sheet in the thickness direction of the sheet.

[0017] The absorbent article has an absorbent body.

[0018] The first elongation is defined as the amount of elongation of the decorative piece at which the adhesive layer breaks when the decorative piece elongates in the direction with higher elongation strength in the longitudinal and transverse directions.

[0019] The amount of elongation of the absorbent when it breaks due to the elongation of the absorbent in the width direction of the absorbent article is defined as the second elongation.

[0020] At this time, the first elongation is greater than the second elongation.

[0021] Preferably, when the elongation of the absorbent when it breaks due to the elongation of the absorbent in the length direction of the absorbent article is set as the third elongation, the first elongation is greater than the third elongation.

[0022] Preferably, when the elongation of the decorative piece at the point where the decorative layer breaks due to the elongation of the decorative piece in the direction of higher elongation strength is set as the fourth elongation, the fourth elongation is greater than the second elongation.

[0023] Preferably, the encapsulation of the absorbent article has a storage body with a predetermined fracture region that breaks upon opening, such that the maximum elongation strength when the predetermined fracture region breaks is less than the elongation strength when the adhesive layer breaks when the decorative piece elongates in the direction of higher elongation strength.

[0024] Preferably, the maximum elongation strength when the predetermined fracture region fractures is smaller than the elongation strength when the decorative layer fractures when the decorative piece elongates in the direction of higher elongation strength.

[0025] Preferably, the decorative sheet for the absorbent product is used in the storage body, and the encapsulation body of the absorbent article has a sealing member covering the predetermined fracture area, and the predetermined fracture area is fractured by pulling the sealing member.

[0026] Preferably, the individual packaging of the absorbent article has a packaging sheet and a retaining strap across the open end of the packaging sheet, wherein the maximum elongation strength when the retaining strap is peeled off from the packaging sheet is less than the elongation strength at which the decorative layer breaks when the decorative sheet is elongated in the direction of higher elongation strength.

[0027] Preferably, the individual packaging of the absorbent article has a packaging sheet, at both ends of the packaging sheet along the direction of the opening end, the folded packaging sheet is joined to each other by a welded portion, the maximum elongation strength when the welded portion is opened is smaller than the elongation strength when the decorative layer breaks when the decorative sheet is stretched in the direction of higher elongation strength.

[0028] Preferably, the decorative sheet for the absorbent product is used in the housing of the package of the absorbent article, the housing having a predetermined fracture area that breaks upon opening, and the adhesive layer and the decorative layer do not overlap with the predetermined fracture area when the housing is viewed from above.

[0029] Preferably, the decorative sheet for the absorbent product is used in the housing of the encapsulation body of the absorbent article, and the adhesive layer and the decorative layer are provided on one of the multiple faces of the housing and not on the opposite side of the provided face.

[0030] Preferably, the decorative sheet for the absorbent product is used in the housing of the package of the absorbent article, the housing having a predetermined fracture area that breaks upon opening, and the adhesive layer and the decorative layer are provided on the side of the housing where the predetermined fracture area is not provided.

[0031] Preferably, the decorative sheet for the absorbent product has an information marking portion indicating information related to the absorbent article, the information marking portion being formed by a printed layer that does not overlap with the adhesive layer and the decorative layer.

[0032] Preferably, the decorative layer is formed from any one of metal foil, holographic foil, or pigment foil.

[0033] Other features of this utility model will be explained by the description in this specification and the accompanying drawings.

[0034] Effects of the utility model

[0035] According to this invention, it is possible to suppress the degradation of the appearance quality of decorative sheets used in individual packaging or encapsulation of absorbent articles. Attached Figure Description

[0036] Figure 1 This is a top view of the unfolded sanitary napkin 1, viewed from the skin side.

[0037] Figure 2 This is a simplified cross-sectional view of sanitary napkin 1.

[0038] Figure 3 This is a top view of the individually packaged sanitary napkin 30 in its unfolded state, viewed from the non-skin side.

[0039] Figure 4 This is a top view obtained by observing the individually packaged sanitary napkin 30 unfolded from the skin side.

[0040] Figure 5 This is a top view of the individual packaging unit 30 of the sanitary napkin.

[0041] Figure 6A This is a 3D view of the packaging body 40 of a sanitary napkin. Figure 6B This diagram shows the state of the container 41 after it has been opened.

[0042] Figure 7 This is the front view of package 40.

[0043] Figure 8 This is the rear view of package 40.

[0044] Figure 9 This is a diagram illustrating decorative piece 50.

[0045] Figure 10A and Figure 10B This is a diagram illustrating decorative piece 50.

[0046] Figure 11A and Figure 11B This is a diagram showing a modified example of the package 40.

[0047] Figure 12A and Figure 12B This is an explanatory diagram about opening the individual package 30.

[0048] Figure 13 This diagram illustrates the manufacturing method of decorative piece 50.

[0049] Explanation of reference numerals in the attached figures

[0050] 1. Sanitary napkin (absorbent); 2. Surface sheet; 3. Middle sheet; 4. Back sheet; 5. Wings; 6. Side sheets; 8. Adhesive part; 9. Adhesive part; 10. Absorbent body; 11. Absorbent core; 12. Core packing sheet; 20. Compression part; 30. Individual packaging of sanitary napkin; 31. Packaging sheet; 32. Fixing strap; 33. Release tab; 34. Release tab; 35. Joining part; 36. Welded part; 40. Encapsulation body of sanitary napkin; 41. Storage body; 42. Main body; 43. Sealing structure Item; 50, Decorative piece; 51, Sheet; 52, Adhesive layer; 52E, Protrusion; 53, Decorative layer; 54, Three-dimensional decorative part; 60, Printed layer; 61, Coding and marking part; 62, Item marking part; 63, Information marking group; 64, Sanitary napkin group marking part; 65, Information marking part; 70, Manufacturing device; 71, Conveying mechanism; 72, Ink ejection device; 73, Adhesive ejection device; 74, First irradiation device; 75, Decorative layer conveying mechanism; 76, Second irradiation device. Detailed Implementation

[0051] Based on the description in this specification and the accompanying drawings, at least the following matters are explained.

[0052] Method 1 is a decorative sheet for absorbent products, wherein the decorative sheet for absorbent products is used in the independent packaging of absorbent articles or the encapsulation of absorbent articles and is decorated thereon. The decorative sheet for absorbent products has: a sheet having mutually orthogonal longitudinal and transverse directions; an adhesive layer disposed on the surface of the sheet; and a decorative layer disposed on the adhesive layer and having a maximum thickness of 10 μm or less. The decorative layer is disposed in a position that can be visually recognized by the user and protrudes from the surface of the sheet in the thickness direction of the sheet. The absorbent article has an absorbent body. The first elongation is defined as the amount of elongation of the decorative sheet when the adhesive layer breaks in the direction in which the decorative sheet is elongated with higher elongation strength in the longitudinal and transverse directions. The second elongation is defined as the amount of elongation of the absorbent body when the absorbent body breaks in the width direction of the absorbent article. In this case, the first elongation is greater than the second elongation.

[0053] According to method 1, even the thinnest decorative layer can protrude in the thickness direction of the sheet by overlapping with the adhesive layer. This gives the user the impression that the absorbent material also deforms and fits in a three-dimensional way, as seen by the protruding, three-dimensional decorative layer. Furthermore, by making the adhesive layer less prone to breakage than absorbent materials designed to not break during wear, the degradation of the decorative sheet's appearance quality can be suppressed. Thus, the user easily perceives that the absorbent material housed within the decorative sheet also possesses high-quality performance.

[0054] (Method 2) Based on the decorative sheet for absorbent products described in Method 1, when the amount of elongation of the absorbent body when it breaks due to the elongation of the absorbent body in the length direction of the absorbent article is set as the third elongation, the first elongation is greater than the third elongation.

[0055] According to method 2, by making the adhesive layer more resistant to breakage than the absorbent body that does not break during the wearing of absorbent articles, it is possible to suppress the degradation of the appearance quality of the decorative piece.

[0056] (Method 3) Based on the decorative sheet for absorbent products described in Method 1 or 2, when the amount of elongation of the decorative sheet when the decorative layer breaks due to the elongation of the decorative sheet in the direction where the elongation strength is higher is set as the fourth elongation, the fourth elongation is greater than the second elongation.

[0057] According to method 3, by making the decorative layer less prone to breakage than the absorbent material that is manufactured to not break during the wearing of absorbent articles, it is possible to suppress the degradation of the appearance quality of the decorative sheet. The decorative layer disposed above the adhesive layer has higher visual recognizability, thus further suppressing the degradation of the appearance quality of the decorative sheet.

[0058] (Method 4) Based on the decorative sheet for absorbent products described in any of Methods 1 to 3, the encapsulation body of the absorbent article has a predetermined fracture area that breaks upon opening, and the maximum elongation strength when the predetermined fracture area breaks is smaller than the elongation strength when the adhesive layer breaks when the decorative sheet is elongated in the direction where the elongation strength is higher.

[0059] According to method 4, even if a force equal to the pulling force that causes the predetermined fracture area to fracture is applied to the decorative piece, the adhesive layer is not easily fractured, thus suppressing the reduction in the appearance quality of the decorative piece.

[0060] (Method 5) Based on the decorative sheet for absorbent products described in Method 4, the maximum elongation strength when the predetermined fracture region is fractured is smaller than the elongation strength when the decorative layer fractures when the decorative sheet is elongated in the direction where the elongation strength is higher.

[0061] According to method 5, even if a force equal to the pulling force that causes the predetermined fracture area to fracture is applied to the decorative piece, the decorative layer is not easily fractured, thus suppressing the reduction in the appearance quality of the decorative piece.

[0062] (Method 6) Based on the decorative sheet for absorbent products described in Method 5, the decorative sheet for absorbent products is used in the storage body, and the encapsulation body of the absorbent article has a sealing member covering the predetermined fracture area, and the predetermined fracture area is fractured by pulling the sealing member.

[0063] According to method 6, even when the sealing member exerts a pulling force on the decorative sheet during the opening of the package, breakage of the decorative layer and adhesive layer can be suppressed. This helps to prevent a decrease in the appearance quality of the package.

[0064] (Method 7) Based on the decorative sheet for absorbent products described in any of Methods 1 to 6, the independent packaging of the absorbent article has a packaging sheet and a retaining strap across the open end of the packaging sheet, wherein the maximum elongation strength when the retaining strap is peeled off from the packaging sheet is less than the elongation strength when the decorative layer breaks when the decorative sheet is elongated in the direction where the elongation strength is higher.

[0065] According to method 7, even if a force equivalent to the pulling force when the fixing tape is peeled off from the packaging sheet is applied to the decorative sheet, the decorative layer is not easily broken, and the reduction in the appearance quality of the decorative sheet can be suppressed.

[0066] (Method 8) Based on the decorative sheet for absorbent products described in any of Methods 1 to 7, the independent packaging body of the absorbent article has a packaging sheet, and the folded packaging sheets are joined together by a weld at both ends of the packaging sheet along the direction of the opening end, wherein the maximum elongation strength when the weld is opened is smaller than the elongation strength when the decorative layer breaks when the decorative sheet is elongated in the direction of the higher elongation strength.

[0067] According to method 8, even if a force equal to the pulling force when opening the welded part of the packaging sheet is applied to the decorative sheet, the decorative layer is not easily broken, and the reduction in the appearance quality of the decorative sheet can be suppressed.

[0068] (Method 9) Based on the decorative sheet for absorbent products described in any of Methods 1 to 8, the decorative sheet for absorbent products is used in a housing of the packaging body of the absorbent article, the housing having a predetermined fracture area that breaks upon opening, and when the housing is viewed from above, the adhesive layer and the decorative layer do not overlap with the predetermined fracture area.

[0069] According to method 9, the adhesive layer and decorative layer do not break together with the decorative piece in the predetermined fracture area, thus preventing the adhesive layer and decorative layer from detaching and suppressing the degradation of the appearance quality of the decorative piece. Furthermore, it prevents the adhesive layer from elongating in the predetermined fracture area, making it difficult to break in that area.

[0070] (Method 10) Based on the decorative sheet for absorbent products described in any of Methods 1 to 9, the decorative sheet for absorbent products is used in a housing of the encapsulation body of the absorbent article, wherein the adhesive layer and the decorative layer are provided on one of the plurality of surfaces of the housing and not on the opposite side of the provided surface.

[0071] According to method 10, the adhesive layer and decorative layer on one side can give the user the impression that the absorbent item also deforms and fits in a three-dimensional way. By avoiding unnecessarily placing the adhesive layer and decorative layer on the opposite side of the storage body, the risk of the adhesive layer and decorative layer falling off can be reduced, and the degradation of the appearance quality of the decorative piece can be suppressed.

[0072] (Method 11) Based on the decorative sheet for absorbent products described in any of Methods 1 to 10, the decorative sheet for absorbent products is used in a housing of the packaging body of the absorbent article, the housing having a predetermined fracture area that breaks upon opening, and the adhesive layer and the decorative layer are provided on the side of the housing where the predetermined fracture area is not provided.

[0073] According to method 11, when the storage unit is opened, the user is less likely to touch the adhesive layer and decorative layer. In addition, the force of pulling the storage unit is less likely to be applied to the adhesive layer and decorative layer. As a result, the breakage of the adhesive layer and decorative layer can be suppressed, and the appearance quality of the storage unit (decorative piece) can be maintained even after opening.

[0074] (Method 12) Based on the decorative sheet for absorbent products described in any of Methods 1 to 11, the decorative sheet for absorbent products has an information marking portion indicating information related to the absorbent article, the information marking portion being formed by a printed layer that does not overlap with the adhesive layer and the decorative layer.

[0075] According to method 12, the printed layer is less likely to peel off compared to the adhesive layer and decorative layer, and the information label can be displayed to the user more reliably.

[0076] (Method 13) Based on the decorative sheet for absorbent products described in any of Methods 1 to 12, the decorative layer is a layer formed from any of the following: metal foil, holographic foil, and pigment foil.

[0077] According to method 13, the aesthetic appeal of the three-dimensional decorative layer can be enhanced. Users who visually recognize decorative layers formed from metallic foil or holographic foil can get the impression that the absorbent material is a high-quality product. On the other hand, decorative layers formed from pigment foil become matte finishes, giving users the impression that the product offers a stable and reassuring feel.

[0078] ===Implementation Methods===

[0079] The following describes, using sanitary napkins as an example of absorbent articles, an embodiment of a decorative sheet for absorbent products, which is used in any of the following: absorbent articles, individual packaging of absorbent articles, and encapsulation of absorbent articles. Absorbent articles are not limited to sanitary napkins, but also include disposable diapers (in the form of panties or belts), panty liners, shorts-type sanitary napkins, incontinence pads, urine-absorbing pads, breast pads, underarm pads, disposable diapers for pets, and other absorbent articles.

[0080] <<Basic Structure of Sanitary Napkins>>

[0081] Figure 1 This is a top view of the unfolded sanitary napkin 1, viewed from the skin side. Figure 2 This is a schematic cross-sectional view of sanitary napkin 1. The unfolded sanitary napkin 1 has mutually orthogonal length, width, and thickness directions. In the length direction, the side that rests against the wearer's lower abdomen is called the "front side," and the side that rests against the wearer's buttocks is called the "back side." Furthermore, in the thickness direction of the sanitary napkin 1, the side that rests against the wearer's skin is called the "skin side," and the opposite side is called the "non-skin side."

[0082] like Figure 2 As shown, the sanitary napkin 1 has a surface sheet 2, an intermediate sheet 3, an absorbent core 10, a bottom sheet 4, wings 5, and side sheets 6. Adjacent materials in the thickness direction are joined and fixed using an adhesive (not shown) such as a hot-melt adhesive. The surface sheet 2 and the intermediate sheet 3 are liquid-permeable sheet members, such as non-woven fabrics. The bottom sheet 4 is a liquid-impermeable sheet member, such as a resin film. The side sheets 6 are folded back from the end of the non-skin side of the absorbent core 10 in the width direction to the end of the surface sheet 2 in the width direction on the skin side. The bottom sheet 4 and the wings 5 ​​extend outward in the width direction relative to the side sheets 6, forming a wing 1w at the center of the sanitary napkin 1 in the length direction.

[0083] Alternatively, the surface sheet 2, which comes into contact with the wearer's skin, can also be made of cotton, a natural fiber (e.g., a sheet component made of 100% cotton, a blend of cotton and hot-air nonwoven fabric, etc.). This reduces irritation to the wearer's skin. In this case, as shown in the accompanying drawings described later, by providing patterns representing cotton on the sanitary napkin 1, the individual packaging 30, and the encapsulation 40, the use of cotton can be demonstrated to the user. However, the surface sheet 2 may not be made of cotton.

[0084] The absorbent 10 is a component that absorbs and retains excrement inside. Figure 2The absorbent body 10 has an absorbent core 11 and a core sheet 12 covering the absorbent core 11. The absorbent core 11 is formed into a predetermined shape from pulp fibers, cellulose fibers, or other absorbent fibers that are liquid absorbent fibers. The core sheet 12 is a liquid-permeable sheet component, such as cotton paper. However, the structure of the absorbent body 10 is not limited to the above structure. For example, it can be a SAP sheet formed by attaching a SAP layer to a hydrophilic sheet, or an air-laid sheet formed by forming liquid absorbent fibers into a sheet shape using an air-laid web forming method. In addition, the sanitary napkin 1 has a compression section 20 formed by compressing the absorbent body 10 from the skin side of the surface sheet 2 along the thickness direction.

[0085] The basic structure of sanitary napkin 1 has been explained above, but the structure of sanitary napkins is not limited to the above structure. For example, it can also be a sanitary napkin without wings 1w, etc.

[0086] <<Individually packaged sanitary napkins 30>>

[0087] Figure 3 This is a top view of the individually packaged sanitary napkin 30 in its unfolded state, viewed from the non-skin side. Figure 4 This is a top view obtained by observing the individually packaged sanitary napkin 30 unfolded from the skin side. Figure 5 This is a top view of the individual packaging unit 30 of the sanitary napkin.

[0088] The individual packaging unit 30 of the sanitary napkin 1 (hereinafter also referred to as "individual packaging unit 30") is formed by independently packaging the sanitary napkin 1 with a packaging sheet 31, and includes the sanitary napkin 1, the packaging sheet 31, the fixing strap 32, and the release tabs 33 and 34. The packaging sheet 31 is a rectangular sheet component, and examples include resin film, non-woven fabric, paper, and sheets formed by laminating the above materials. The length direction of the packaging sheet 31 corresponds to the length direction of the sanitary napkin 1, and the width direction of the packaging sheet 31, which is the short side direction, corresponds to the width direction of the sanitary napkin 1. The fixing strap 32 is provided at the end of the packaging sheet 31 in the length direction.

[0089] like Figure 3 As shown, multiple adhesive portions 8 and 9 coated with adhesive or the like are provided on the non-skin side of the sanitary napkin 1 (i.e., the non-skin side of the backing 4). Multiple rectangular adhesive portions 8 extending along the length direction are arranged in the width direction of the main body of the sanitary napkin 1. These adhesive portions 8 of the main body are used to fix the main body of the sanitary napkin 1 to the inner side of the wearer's underwear. Additionally, multiple rectangular adhesive portions 9 extending along the length direction are also arranged in the width direction of the wing portion 1w. When the sanitary napkin 1 is worn, the wing portion 1w is bent and fixed to the outer side of the underwear using the adhesive portions 9. Furthermore, the shape, number, and arrangement of the adhesive portions 8 and 9 are not limited to... Figure 3 The example is shown.

[0090] In the individual packaging 30, the non-skin side of the sanitary napkin 1 is secured to the packaging sheet 31 via a release liner 33. The release liner 33 covers the adhesive portion 8 of the main body of the sanitary napkin 1, allowing the sanitary napkin 1 to be easily peeled off when the individual packaging 30 is opened. Additionally, as... Figure 4 As shown, the wing 1w is folded inward in the width direction on the skin side of the sanitary napkin 1. The adhesive portion 9 of the wing 1w is covered by the release tab 34. In addition, the sanitary napkin 1 can be directly and peelably fixed to the packaging sheet 31 without being secured to the packaging sheet 31 through the release tab 33.

[0091] Packaging sheet 31 and sanitary napkin 1 Figure 4 The state begins with folding at two folds F1 and F2 along the width direction. The two ends of the packaging sheet 31, folded together with the sanitary napkin 1, are joined in the width direction, as shown below. Figure 5 The joint 35 is formed as shown. Examples of joint methods at the joint 35 include known methods such as heat sealing, ultrasonic sealing, adhesives, and combinations thereof. Additionally, a retaining strap 32 is provided across the opening end of the packaging sheet 31. The user holds the retaining strap 32 and unfolds the folds F1 and F2 to open the individual packaging unit 30.

[0092] The above describes the individual packaging 30 for sanitary napkins, but the structure of the individual packaging 30 is not limited to the above structure. For example, the number of folds F1 and F2 on the packaging sheet 31 is not limited to two; it can be one or more. Furthermore, the packaging sheet 31 and the sanitary napkin 1 can be folded not only at the folds F1 and F2 along the width direction but also at the folds along the length direction. Alternatively, the packaging sheet 31 and the sanitary napkin 1 can be folded independently. That is, the packaging sheet 31 can also be folded to enclose a pre-folded sanitary napkin 1.

[0093] <<Sanitary Napkin Packaging Body 40>>

[0094] Figure 6A This is a 3D view of the packaging body 40 of a sanitary napkin. Figure 6B This diagram shows the state of the storage body 41 after it has been opened. The sanitary napkin packaging body 40 (hereinafter also referred to as "packaging body 40") has multiple individual packaging bodies 30 for sanitary napkins and a storage body 41 for storing the multiple individual packaging bodies 30 for sanitary napkins. In addition, the storage body is not limited to individual packaging bodies for storing absorbent items, but can also directly store one or more absorbent items that are not individually packaged, such as disposable diapers.

[0095] Figure 6AThe illustrated storage body 41 has a vertical, horizontal, and front-back orientation, and includes a rectangular main body 42 and a sealing member 43. The sealing member 43 is located on the back side 41B of the encapsulation body 40 (storage body 41). Specifically, the sealing member 43 is located on the upper rear side of the storage body 41. A gripping portion 431 is provided at the center of the sealing member 43 in the horizontal direction. Furthermore, a cutting line 44 (e.g., an easy-tear line) is formed on the portion of the main body 42 covered by the sealing member 43. The user pinches the gripping portion 431 and pulls the sealing member 43, thereby... Figure 6B As shown, a portion of the main body 42 is bonded to the sealing member 43 along the cut line 44 to form an opening 45, which serves as the dispensing port for the sanitary napkin 1.

[0096] also, Figure 6A The shape and structure of the storage body 41 shown are just one example and are not limited thereto. For example, it can also be a cuboid-shaped storage body without a sealing member 43, a stand-up pouch, a flat bag, or other storage bodies.

[0097] <<Decorative Sheets for Absorbent Products 50>>

[0098] Figure 7 This is the front view of package 40. Figure 8 This is the rear view of package 40. Figure 9 , Figure 10A as well as Figure 10B This is a diagram illustrating decorative piece 50.

[0099] In this embodiment, the housing 41 (specifically, the main body 42) of the sanitary napkin packaging 40 uses a decorative sheet 50 for absorbent products that has been decorated. Figure 9 As shown, the decorative sheet 50 includes: a sheet 51; an adhesive layer 52 disposed on the surface of the sheet 51; and a decorative layer 53 disposed on the adhesive layer 52 with a maximum thickness of 10 μm or less. Examples of decorative layer 53 include metal foil, holographic foil, pigment foil, etc. (details will be described later).

[0100] The decorative layer 53 is provided in a region that is visually recognizable to the user, and protrudes from the surface of the sheet 51 in the thickness direction of the sheet 51. That is, the decorative layer 53 protrudes relative to the surrounding surface of the sheet 51 by means of the adhesive layer 52 formed in a raised manner on the surface of the sheet 51. Therefore, the decoration presented by the decorative layer 53 is visually recognized by the user as a three-dimensional decoration. In the following description, the portion where the decorative layer 53 overlaps with the adhesive layer 52 is also referred to as the "three-dimensional decorative portion 54". As an example of the cross-sectional shape of the three-dimensional decorative portion 54, Figure 9 , Figure 10A as well as Figure 10B The shape shown. (As shown) Figure 9 , Figure 10AAs shown, the portion (52E) of the adhesive layer 52 that does not overlap with the decorative layer 53 is not included in the three-dimensional decorative part 54.

[0101] In this embodiment, a three-dimensional decorative portion 54 (adhesive layer 52 + decorative layer 53) is provided on the outer surface of the housing 41 of the encapsulation body 40, and the three-dimensional decorative portion 54 protrudes outward from the housing 41. The three-dimensional decorative portion 54 displays a pattern d1 of multiple curves. Figure 7 ), or show the outline of the flower, the pattern of the petals d2 ( Figure 7 ), or display the pattern d3 of sanitary napkin 1 ( Figure 7 ).

[0102] Thus, even when decorating the sheet 51 with a relatively thin decorative layer 53 (metal foil, holographic foil, pigment foil, etc.) with a maximum thickness of less than 10 μm, a three-dimensional decoration (three-dimensional decorative part 54) can be formed by providing the decorative layer 53 on top of the adhesive layer 52. Users who visually recognize the three-dimensional decorative part 54 provided on the storage body 41 of the packaging body 40 are more likely to perceive it as a three-dimensional product. Therefore, users are also more likely to perceive the sanitary napkin 1 stored in the storage body 41 as a product that is three-dimensionally deformed to fit the body and is less prone to leakage.

[0103] The types of decorations displayed by the three-dimensional decoration section 54 are not particularly limited, and can include text, numbers, symbols (such as musical notes, signs, etc.), graphics (such as circles, polygons, hearts, stars, etc.), patterns (such as paintings representing the shape of objects, animals, plants, people, etc.), geometric patterns, colors (parts with a predetermined color difference relative to the color of sheet 51), or decorations formed by combining the above decorations. Figure 7 The three-dimensional decorative part 54 shown is an example. The shape, number, size and arrangement of the three-dimensional decorative part 54 are not particularly limited.

[0104] The adhesive layer 52 is a layer formed from a raw material that remains raised on the surface of the sheet 51 and has adhesive properties that bond the sheet 51 and the decorative layer 53 together. For example, a colorless, transparent, UV-curable adhesive is used as the raw material for forming the adhesive layer 52. The adhesive layer 52, which is a UV-curable adhesive, is irradiated with ultraviolet light, and the decorative layer 53 is bonded to the adhesive layer 52 by utilizing the adhesive properties of the partially cured adhesive layer 52. However, it is not limited to this; for example, other UV-curable adhesives may also be used. It is preferable to adjust the viscosity of the adhesive layer 52 so that it does not easily penetrate the sheet 51 and thus rises on the sheet 51. Furthermore, the sheet 51 constituting the decorative sheet 50 can be, for example, a resin film, non-woven fabric, paper, or a sheet formed by laminating the above materials.

[0105] The thickness of decorative layer 53 is the length in a direction orthogonal to the surface of decorative layer 53 (e.g., Figure 9 Regarding the maximum thickness (less than 10 μm) of the decorative layer 53, it can be confirmed using known methods. For example, the portion of the decorative piece 50 (here, the housing 41) where the three-dimensional decorative part 54 is formed is identified, and multiple samples are formed by cutting this portion at any number of points. Then, the cut surface of each sample is magnified and photographed using an optical microscope (e.g., a VHX-900F manufactured by Keyence). For each photographed cut surface, the maximum thickness of the decorative layer 53 is measured. The maximum value of the maximum thickness of each sample is set as the maximum thickness of the decorative layer 53, and it is confirmed to be less than 10 μm.

[0106] Furthermore, the elongation strength of the decorative sheet 50 is higher than the elongation strength in the width direction of the absorbent body 10 of the sanitary napkin 1. The elongation strength of the decorative sheet 50 is defined as the strength of the direction with higher elongation strength among the mutually orthogonal longitudinal and transverse directions of the sheet 51. Hereinafter, the direction with higher elongation strength in the longitudinal and transverse directions of the sheet 51 will also be referred to as the "high-strength direction".

[0107] The decorative piece 50 is used in the housing 41 of the encapsulation body 40, and as... Figure 6A In such a sealed configuration, the vertical and horizontal directions (or the vertical and front-back directions) of the storage body 41 correspond to the longitudinal and transverse directions of the sheet 51. Furthermore, when the decorative sheet 50 is used in the packaging sheet 31 of the independent packaging body 30, Figure 3 The length and width directions shown correspond to the longitudinal and transverse directions of the decorative piece 50.

[0108] The elongation of the decorative sheet 50 at the point where the adhesive layer 52 of the three-dimensional decorative part 54 breaks due to the elongation of the decorative sheet 50 in the high-strength direction of the sheet 51 is defined as the "first elongation" (unit example: mm). Similarly, the elongation of the absorbent 10 at the point where it breaks due to the elongation of the absorbent 10 in the width direction of the sanitary napkin 1 is defined as the "second elongation" (unit example: mm). In this case, the first elongation is greater than the second elongation, and the elongation strength of the decorative sheet 50 is higher than the elongation strength of the absorbent 10 in the width direction.

[0109] The moment when the adhesive layer 52 breaks refers to either the moment when damage such as cracking or rupture begins to occur in the adhesive layer 52, or the moment when the adhesive layer 52 begins to peel off from the sheet 51. Furthermore, the absorbent body 10 of this embodiment has an absorbent core 11 and a core-covering sheet 12 covering the absorbent core 11. In this case, the moment when either the absorbent core 11 or the core-covering sheet 12 breaks first is set as the moment when the absorbent body 10 breaks. However, if the absorbent core 11 is a structure made of laminated pulp fibers or other liquid absorbent fibers, the absorbent core 11 does not elongate; therefore, it is preferable to set the moment when the core-covering sheet 11 breaks (the moment when damage such as cracking or rupture begins to occur) as the moment when the absorbent body 10 breaks. Additionally, if the absorbent body 10 does not have a core-covering sheet 12, the moment when the absorbent core (e.g., a SAP sheet, an air-formed mesh, etc.) breaks (the moment when damage such as cracking or rupture begins to occur) is set as the moment when the absorbent body 10 breaks. The third elongation (described later) regarding the case where the absorbent 10 is elongated in the length direction of the sanitary napkin 1 is also the same.

[0110] Based on the above, even if the decorative sheet 50 is stretched to the length at which the absorbent 10 begins to break (the second elongation), the adhesive layer 52 of the three-dimensional decorative portion 54 will not break. Normally, the absorbent 10, as a material constituting the sanitary napkin 1, is formed with a strength that prevents it from breaking during wear of the sanitary napkin 1. The adhesive layer 52 has a higher elongation strength than the absorbent 10 and is less prone to breakage. Therefore, even if the decorative sheet 50 (here, the housing 41 of the encapsulation 40) elongates at various times, such as during manufacturing, distribution, or user use, the adhesive layer 52 is less likely to break. Furthermore, it is possible to prevent the three-dimensional decorative portion 54 (adhesive layer 52) from detaching from the sheet 51 due to breakage of the adhesive layer 52. Thus, compared to cases where the first elongation is less than or equal to the second elongation, the decorative sheet 50 according to this embodiment can suppress a decrease in appearance quality.

[0111] Furthermore, unlike the decorative sheet 50 of this embodiment, a flat decoration can be formed on the sheet by pressing a foil or other foil material onto it. In this case, the foil and the sheet are integrated by pressing, so the pulling force applied to the sheet easily acts directly on the foil. In contrast, in the decorative sheet 50 of this embodiment, a decorative layer 53 (foil material) is provided on top of the adhesive layer 52, and the pulling force of the sheet 51 does not easily act directly on the decorative layer 53. In addition, the adhesive layer 52 is formed from an adhesive raw material and is elastic. Therefore, the elasticity of the adhesive layer 52 is used to reduce the pulling force applied to the decorative layer 53. Therefore, compared with the case where the foil material is pressed onto the sheet, the decorative layer 53 (foil material) of the decorative sheet 50 of this embodiment is less likely to break.

[0112] In practice, a tensile test was conducted on samples formed by pressing foil onto a sheet and a sample of the decorative sheet 50 of this embodiment to elongate each sample (the test method is the same as the method for determining the first elongation, which will be described later). As a result, the following results were obtained: compared with the sample formed by pressing foil onto a sheet, the sample of the decorative sheet 50 of this embodiment had a longer elongation at the beginning of foil breakage, and the foil (decorative layer 53) was less prone to breakage.

[0113] That is, by overlapping the decorative layer 53 with the adhesive layer 52 to form a three-dimensional decorative part 54, not only can a three-dimensional decoration be formed, but the breakage of the decorative layer 53 can also be suppressed. By suppressing the breakage of the decorative layer 53, which is disposed on the adhesive layer 52 and has a higher visual recognizability than the adhesive layer 52, the appearance quality of the decorative piece 50 can be further maintained.

[0114] Therefore, in stores displaying the package 40, restrooms storing the package 40, and other similar locations, users who visually recognize the three-dimensional decorative section 54 that maintains the product's appearance quality are more likely to perceive it as a high-quality product. Consequently, users are more likely to perceive the sanitary napkin 1 stored in the package 40 as having high-quality performance (leaky, comfortable to wear, and highly durable properties). Thus, users can use the sanitary napkin 1 with peace of mind.

[0115] Alternatively, the decorative sheet 50 may not be used on the packaging body 40, but rather on the individual packaging body 30 of the sanitary napkin 1. For example, in the case of the individual packaging body 30, the decorative sheet 50 can be used on the packaging sheet 31, the release sheet 33, 34, etc. Specifically, the decorative sheet 50 can be used on the packaging sheet 31, the release sheet 33, 34, etc. Figure 5 The pattern d4 on the outer side of the packaging sheet 31 shown. Figure 4 It is preferable to designate the pattern d5 of the release tab 34 as a three-dimensional decorative part 54. In this way, when the user takes out the individual package 30 from the package 40 or opens the individual package 30, the user can visually identify the three-dimensional decorative part 54 that maintains the appearance quality.

[0116] Alternatively, the decorative sheet 50 can be used only in one of the encapsulation body 40 and the individual packaging body 30, or the individual packaging body 30 formed by the decorative sheet 50 can be housed within the encapsulation body 40 formed by the decorative sheet 50.

[0117] Furthermore, the decorative piece 50 may have only one three-dimensional decorative portion 54 or multiple three-dimensional decorative portions 54. The elongation at break (first elongation) of each adhesive layer 52 of the multiple three-dimensional decorative portions 54 may be the same or different. For example, forming... Figure 7The decorative sheet 50 of the encapsulation body 40 has an adhesive layer 52 forming a curved pattern d1 and an adhesive layer 52 forming a sanitary napkin pattern d3, and the widths of the two adhesive layers 52 are different. In this case, the elongation at break (first elongation) is likely to be different. Furthermore, by varying the amount and number of times the adhesive layer 52 is sprayed toward the sheet 51 to make the thickness of the adhesive layer 52 different, or by varying the planar shape of the adhesive layer 52 (e.g., the presence or absence of curved and straight portions), the elongation at break (first elongation) is likely to be different.

[0118] When the elongation at fracture of each of the multiple adhesive layers 52 in the decorative sheet 50 differs, it is preferable that the elongation at fracture of at least one adhesive layer 52 (first elongation) is greater than the elongation at fracture of the absorbent 10 (second elongation). Preferably, the elongation at fracture of each of the multiple adhesive layers 52 (first elongation) is greater than the second elongation; more preferably, the elongation at fracture of each of all adhesive layers 52 in the decorative sheet 50 (first elongation) is greater than the second elongation. This suppresses the fracture of more adhesive layers 52, thereby suppressing the degradation of the appearance quality of the decorative sheet 50.

[0119] Furthermore, the amount of elongation of the absorbent 10 when it breaks due to elongation in the length direction of the sanitary napkin 1 is defined as the third elongation (unit example: mm). In this case, it is preferable that the first elongation of the adhesive layer 52 when it breaks due to elongation in the high-strength direction of the decorative sheet 50 is greater than the third elongation.

[0120] Sanitary napkins 1 are mostly manufactured while their constituent materials are continuously conveyed along the length of the sanitary napkin 1. Therefore, the elongation strength of the absorbent body 10 in the length direction is generally higher than its elongation strength in the width direction. Thus, as described above, the first elongation is greater than the third elongation, and the elongation strength of the adhesive layer 52 is higher than the elongation strength of the absorbent body 10 in the length direction, making the adhesive layer 52 less prone to breakage. Furthermore, it is possible to prevent the adhesive layer 52 from detaching from the sheet 51 due to breakage. As a result, it is possible to suppress the degradation of the appearance quality of the decorative sheet 50, maintaining the impression of high-quality performance for the stored sanitary napkin 1.

[0121] Furthermore, the elongation of the decorative piece 50 when the decorative layer 53 breaks (due to damage such as cracking or splitting, or when the self-adhesive layer 52 begins to peel off) when the decorative piece 50 is elongated in the high-strength direction is defined as a fourth elongation (unit example: mm). Preferably, the fourth elongation is greater than the second elongation when the absorbent 10 breaks when it is elongated in the width direction.

[0122] In this way, even if the decorative sheet 50 is stretched to the length at which the absorbent body 10 begins to break (the second elongation), the decorative layer 53 will not break. By suppressing the breakage of the decorative layer 53, which has a higher visual recognizability than the adhesive layer 52, the appearance quality of the decorative sheet 50 can be further maintained. As a result, the user can be given the impression that the sanitary napkin 1 being stored is also of high quality. In addition, the fact that the decorative layer 53 is not easy to break can prevent the impression given to the user by the decorative layer 53 from being diminished. For example, if the decorative layer 53 has a metallic luster, the impression of a high-end product can be prevented from being diminished.

[0123] The comparison of elongation at fracture can be performed using a tensile testing machine (e.g., Instron Model 5965 or an equivalent instrument) and by known methods.

[0124] First, determine the direction of higher elongation strength (high-strength direction) in both the longitudinal and transverse directions of the decorative piece 50 (piece 51). To this end, cut the decorative piece 50 to a predetermined size to form a sample. Prepare samples with the longitudinal direction of the decorative piece 50 (e.g., the vertical direction of the package 40) and the transverse direction of the decorative piece 50 (e.g., the horizontal direction of the package 40) as the measurement direction. The samples are designed as rectangles with the elongation measurement direction as their length (e.g., 100mm length × 25mm width in the measurement direction). Then, using the chucks of a tensile testing machine, clamp the two ends of the sample (50mm distance between chucks) and compare the tensile strength (N) when the sample is elongated to a predetermined length at a tensile speed of 100mm / min. The direction in which the sample with higher tensile strength elongates is the "direction of higher elongation strength (high-strength direction)".

[0125] Next, the decorative sheet 50 is cut to a predetermined size to form a sample containing an arbitrary three-dimensional decorative part 54. The sample size is set to a rectangle with the direction of higher elongation strength in the longitudinal and transverse directions of the decorative sheet 50 as the length direction (measurement direction) (e.g., length 100mm × width 25mm in the measurement direction). Additionally, the materials are separated from the sanitary napkin 1 using a cold spray or similar method, and the absorbent body 10 or the material to be measured (absorbent core 11 or core sheet 12) from the absorbent body 10 is removed. The absorbent body 10 or the material to be measured from the absorbent body 10 is also cut to a predetermined size (a rectangle with the width or length direction of the sanitary napkin 1 as the measurement direction, length 100mm × width 25mm) to form a sample. Furthermore, the above sample size is an example; for example, if the length in the width direction of the absorbent body 10 is less than 100mm, it is preferable to use a sample formed by reducing both the sample of the decorative sheet 50 and the sample of the absorbent body 10 to a smaller size (i.e., a sample with the length in the measurement direction set to less than 100mm) for measurement. Then, using the chucks of a tensile testing machine, each sample is held at both ends (50 mm between chucks) and stretched at a tensile speed of 100 mm / min while the sample is being observed. The elongation of the sample at which fracture begins in the adhesive layer 52 or decorative layer 53 of the three-dimensional decorative part 54 (first elongation or fourth elongation) and the elongation of the sample at which fracture begins in the absorber 10 at the point where fracture begins in the absorber 10 by stretching it in the width or length direction (second elongation or third elongation) are then compared.

[0126] Furthermore, it is preferable that the decorative layer 53 is formed from any one of metal foil, holographic foil, or pigment foil. This enhances the aesthetic appeal of the three-dimensional decorative section 54. Specifically, the three-dimensional decorative section 54 formed from metal foil or holographic foil, displaying a metallic sheen such as gold or silver, is easily eye-catching. As a result, users visually recognizing the storage body 41 of the package 40 are easily drawn to the shimmering three-dimensional decorative section 54, and are more likely to perceive the sanitary napkin 1 as having a three-dimensional shape. In addition, the metallic sheen of the three-dimensional decorative section 54 also easily conveys the impression of a high-end product to users. Therefore, users are more likely to perceive the sanitary napkin 1 stored in the storage body 41 as a high-quality product (e.g., leak-proof, comfortable to wear), and can use the sanitary napkin 1 with peace of mind. On the other hand, the three-dimensional decorative section 54 formed from pigment foil has a matte finish, giving users the impression of a product with a stable sense of security. In addition, because it lacks a metallic sheen, users are more likely to feel reassured that no metal or other foreign objects have been mixed into the sanitary napkins 1 that have been stored.

[0127] Examples of metal foils include metal foils obtained by striking metal to extend it thinly and flat, thin and flat sheets containing metal (coated films of metal powder pigments, metal vapor-deposited films), and sheets obtained by laminating resin layers on the aforementioned components. Examples of metals contained in metal foils include gold, silver, copper, tin, brass, and aluminum.

[0128] Holographic foil is a thin, flat sheet that reflects incident light in colors using a prism effect. By creating fine embossed patterns on its surface, people who see the reflected light can visually identify specific patterns.

[0129] As a pigment foil, an example is a sheet formed by laminating a pigment film onto a synthetic resin layer. The pigment color can be red, blue, yellow, black, white, etc., without particular limitation. Furthermore, the decorative layer 53 can also be a foil material other than metal foil, holographic foil, or pigment foil.

[0130] Furthermore, preferably, the elongation strength of the adhesive layer 52 is higher than that of the decorative layer 53, and the first elongation (the elongation at which the adhesive layer 52 breaks) is greater than the fourth elongation (the elongation at which the decorative layer 53 breaks). Therefore, the raw materials and thickness of the adhesive layer 52 can be adjusted. Based on the above, the adhesive layer 52 is easier to elongate than the decorative layer 53. Since the adhesive layer 52 is disposed on the sheet 51, it is easily affected by external forces from the sheet 51, but because it is easy to elongate as described above, it easily follows the deformation of the sheet 51. Therefore, breakage of the adhesive layer 52 can be suppressed. In addition, the adhesive layer 52 is less prone to breakage than the decorative layer 53, thereby preventing breakage of the decorative layer 53 caused by the breakage of the adhesive layer 52. Furthermore, if the three-dimensional decorative part 54 detaches from the piece 51 due to the breakage of the adhesive layer 52, the user can more easily identify the reduced quality of the decorative piece 50 compared to the case where only cracks occur in the adhesive layer 52 and the decorative layer 53. Therefore, it is preferable to increase the elongation strength of the adhesive layer 52 to suppress the detachment of the three-dimensional decorative part 54.

[0131] Furthermore, it is preferable that the elongation strength of the adhesive layer 52 is higher than the elongation strength in the width direction of at least one of the surface sheet 2 and side sheet 6 of the sanitary napkin 1. That is, it is preferable that the first elongation at which the adhesive layer 52 breaks when the decorative sheet 50 is elongated in the high-strength direction is greater than the elongation at which the sheet breaks when the surface sheet 2 or side sheet 6 is elongated in the width direction. The surface sheet 2 and side sheet 6 exposed on the outer side of the sanitary napkin 1 are formed to be less prone to breakage. Therefore, in the above case, the adhesive layer 52 is less prone to breakage, and the reduction in the appearance quality of the decorative sheet 50 can be suppressed. However, it is not limited to the above case, and it is also possible that the elongation strength of the adhesive layer 52 is lower than the elongation strength of the surface sheet 2 and the side sheet 6. The elongation at which the surface sheet 2 and the side sheet 6 break can be measured by the same method as the method for measuring the first elongation.

[0132] Figure 11A and Figure 11B This is a diagram showing a modified example of the package 40. The housing 41 included in the package 40 has a predetermined fracture region Rc that will break upon opening. For example, in Figure 6A In the case of the housing 41 shown, the portion of the main body 42 covered by the sealing member 43 where the cut line 44 is formed becomes the predetermined fracture region Rc. In such cases... Figure 11A In a housing 41 that lacks a sealing member 43, the tear line or other cutting line 44 is exposed. The portion where this tear line 44 is formed becomes the predetermined fracture region Rc. Figure 11B In such a stand-up pouch-type storage body 41, a pair of notches 47 are provided above the resealable sealing portion 46 (such as a resin zipper) arranged along the left-right direction. The notches 47 are portions formed by a slight inward cut into the left-right sides of the storage body 41 at both ends in the left-right direction. In this case, the portion extending from one notch 47 to the other (in...) Figure 11B The hypothetical area represented by the dashed line in the middle is called the predetermined fracture region Rc.

[0133] Furthermore, it is preferable that the maximum elongation strength when the predetermined fracture region Rc fractures is smaller than the elongation strength when the adhesive layer 52 of the three-dimensional decorative part 54 fractures when the decorative piece 50 elongates in the high strength direction.

[0134] The maximum elongation strength that causes the predetermined fracture zone Rc to break refers to the maximum tensile force applied to the storage body 41 when the storage body 41 is opened within the predetermined fracture zone Rc. Therefore, based on the above, even if the same tensile force is applied to the decorative sheet 50 used in the packaging body 40 or the individual packaging body 30 as when the storage body 41 is opened, the adhesive layer 52 is not easily broken. As a result, the degradation of the appearance quality of the decorative sheet 50 can be suppressed, and the impression of high-quality performance can be maintained for the stored sanitary napkin 1.

[0135] Furthermore, it is preferable that the maximum elongation strength when the predetermined fracture region Rc fractures is less than the elongation strength when the decorative layer 53 of the three-dimensional decorative portion 54 fractures when the decorative sheet 50 elongates in the high-strength direction. In this way, even if the same pulling force is applied to the decorative sheet 50 used in the package 40 or the individual packaging 30 as when opening the storage body 41, the decorative layer 53 is less likely to fracture. The decorative layer 53, with its high visual recognizability, is less prone to fracture, thereby further suppressing the degradation of the appearance quality of the decorative sheet 50 and maintaining the impression that the sanitary napkin 1 also possesses high-quality performance.

[0136] Furthermore, it is preferable that the aforementioned decorative piece 50 is used in the housing 41 of the encapsulation body 40. Specifically, it is preferable that the aforementioned decorative piece 50 is used in the housing 41 of the encapsulation body 40 as follows: Figure 6A The encapsulation body 40 shown has a sealing member 43 covering the predetermined fracture region Rc, and as shown, the receiving body 41 is a housing body 41. Figure 6B The predetermined fracture area Rc is broken by pulling the sealing member 43. When opening the storage body 41, the user holds the storage body 41 (main body 42) with one hand and pulls the sealing member 43 with the other hand. This pulling force acts on the decorative piece 50. However, as described above, the maximum elongation strength at which the predetermined fracture area Rc breaks is smaller than the elongation strength at which the adhesive layer 52 and the decorative layer 53 break. Therefore, the adhesive layer 52 and the decorative layer 53 are not easily broken. Thus, even after the storage body 41 is opened, the appearance quality of the storage body 41 can be maintained.

[0137] Preferably, in Figure 6A In the housing 41 shown, the vertical direction, which is the direction for opening and pulling the sealing member 43, is preferably the high-strength direction of the sheet 51. In this way, even if the maximum elongation strength in the case of fracture of the predetermined fracture region Rc is applied to the housing 41 (decorative sheet 50), the fracture of the adhesive layer 52 and the decorative layer 53 can be more reliably suppressed.

[0138] The maximum elongation strength that causes the predetermined fracture zone Rc to fracture can be determined using a tensile testing machine.

[0139] (1) In Figure 6AIn the case of the package 40 with the specifications shown, the end (lower end) of the housing 41 opposite to the side where the sealing member 43 is located is opened with scissors or the like, and the individual package 30 is removed. Then, the pinching part 431 (gp) of the sealing member 43 is clamped by one chuck of a tensile testing machine, and the part of the housing 41 below the sealing member 43 is clamped by the other chuck. Specifically, the pinching part is formed at the center part (gp) in the left-right direction at a position 5 mm below the adhesive surface of the sealing member 43, and is clamped by the chuck. Then, the distance between the pair of chucks (e.g., 10 mm) is separated at a certain speed (e.g., 200 mm / min), and the load (elongation strength) applied during the period from the unopened state of the predetermined fracture region Rc to the fully opened state is determined. The maximum value (N) is obtained and set as the maximum elongation strength.

[0140] (2) In Figure 11A In the case of the package 40 with the specifications shown, retain the portion with the cutting line 44 (easy tear line), open the package with scissors or the like, and remove the individual package 30. In such cases... Figure 11A With two cutting lines 44 on both sides of the side 41s of the housing 41 in the vertical direction, the housing 41 is cut at its center in the vertical direction to form two samples. Then, a pair of chucks of a tensile testing machine clamps the central portion (gp) in the horizontal direction of the housing 41 on one side and the other side in the direction intersecting the cutting lines 44 (vertical direction). The samples are clamped by the chucks with the angle between the chucks at 45 degrees (each chuck is tilted 22.5 degrees relative to the cutting line 44) across the cutting line 44. The chucks are then separated vertically to cut the cutting line 44. The samples are positioned with the chucks at a 45-degree angle at the beginning of the opening of the cutting line 44. The distance between the chucks (e.g., 20 mm) is then separated at a certain speed (e.g., 100 mm / min), and the tensile strength is measured. The tensile strength of the cutting line 44 is measured at the location where the strength change is stable. Specifically, determine the load (elongation strength) applied during the period from the 5th hole to the 10th hole of the tear line. Obtain the maximum value (N) and set it as the maximum elongation strength.

[0141] (3) In Figure 11BIn the case of the package 40 with the specifications shown, the end (lower end) opposite to the notch 47 is opened with scissors or the like, and the individual package 30 is removed. A pair of chucks on both sides (gp) of the notch 47 are clamped using a tensile testing machine. Then, the distance between the pair of chucks (e.g., 20 mm) is separated at a certain speed (e.g., 100 mm / min), and the measurement is performed. The load (elongation strength) applied during the period from the unopened state of the predetermined fracture region Rc to the fully opened state is determined. The maximum value (N) is obtained and set as the maximum elongation strength.

[0142] Regarding the method for determining the elongation strength at which the adhesive layer 52 or the decorative layer 53 breaks when the decorative piece 50 is elongated in the high-strength direction, the same method as when determining the first elongation can be used. That is, the load applied to the sample of the decorative piece 50 when it elongates by the first elongation between the chucks of the tensile testing machine is set as the elongation strength (N) at which the adhesive layer 52 breaks. Furthermore, the load applied to the sample of the decorative piece 50 when it elongates by the fourth elongation between the chucks of the tensile testing machine is set as the elongation strength (N) at which the decorative layer 53 breaks.

[0143] Figure 12A and Figure 12B This is an illustrative diagram showing how to open the individual package 30. To avoid making the illustrations too complicated, [the following text is missing]. Figure 12A and Figure 12B The pattern of the individual packaging unit 30 (three-dimensional decorative part 54, printing layer 60) is omitted. As mentioned above. Figure 5 As shown, the individual package 30 has a packaging sheet 31 and a retaining strap 32 that secures the opening end 31O across the packaging sheet 31. Additionally, as... Figure 12A As shown, the retaining strap 32 has a non-adhesive gripping portion 321 and an adhesive portion 322 that protrudes downward relative to the opening end 31O of the packaging sheet 31. When opening the individual packaging 30, the user holds the gripping portion 321 of the retaining strap 32 and peels the adhesive portion 322 of the retaining strap 32 from the packaging sheet 31.

[0144] The maximum elongation strength when the fixing strip 32 is peeled off from the packaging sheet 31 is preferably smaller than the elongation strength when the adhesive layer 52 breaks when the decorative sheet 50 is stretched in the high-strength direction. Preferably, the maximum elongation strength when the fixing strip 32 is peeled off from the packaging sheet 31 is preferably smaller than the elongation strength when the decorative layer 53 breaks when the decorative sheet 50 is stretched in the high-strength direction.

[0145] Thus, even when the same pulling force is applied to the decorative sheet 50 used in the packaging body 40 or the individual packaging body 30 as when peeling off the fixing strip 32, the adhesive layer 52 and the decorative layer 53 are not prone to breakage. Therefore, it is possible to suppress the degradation of the appearance quality of the decorative sheet 50, maintaining the impression of high-quality performance for the sanitary napkin 1. In particular, when the decorative sheet 50 is used in the packaging sheet 31, breakage of the adhesive layer 52 and the decorative layer 53 during peeling off the fixing strip 32 can be more reliably suppressed.

[0146] In addition, such as Figure 5 As shown, in the individual packaging 30, the folded packaging sheets 31 are joined together by a plurality of welded portions 36 at both ends of the packaging sheet 31 along the direction of the opening end (width direction). It is preferable that the maximum elongation strength when the welded portion 36 is opened is smaller than the elongation strength at which the adhesive layer 52 breaks when the decorative sheet 50 is elongated in the high-strength direction. More preferably, it is preferable that the maximum elongation strength when the welded portion 36 is opened is smaller than the elongation strength at which the decorative layer 53 breaks when the decorative sheet 50 is elongated in the high-strength direction.

[0147] Thus, even when the same pulling force is applied to the decorative sheet 50 used in the packaging body 40 or the individual packaging body 30 as when the folded packaging sheet 31 is opened by peeling off the multiple welded portions 36, the adhesive layer 52 and the decorative layer 53 are not prone to breakage. Therefore, it is possible to suppress the degradation of the appearance quality of the decorative sheet 50, and to maintain the impression of high-quality performance of the sanitary napkin 1. In particular, when the decorative sheet 50 is used in the packaging sheet 31, the breakage of the adhesive layer 52 and the decorative layer 53 when the multiple welded portions 36 are peeled off can be more reliably suppressed.

[0148] In addition, in such Figure 3 When the non-skin side of the sanitary napkin 1 is fixed to the packaging sheet 31 via the release liner 33, the release liner 33 is fixed to the packaging sheet 31 by an adhesive (not shown). Therefore, it is preferable that the maximum elongation strength when the release liner 33 separates from the packaging sheet 31 is smaller than the elongation strength when the adhesive layer 52 breaks when the decorative sheet 50 is stretched in the high-strength direction. Preferably, it is preferable that the maximum elongation strength when the release liner 33 separates from the packaging sheet 31 is smaller than the elongation strength when the decorative layer 53 breaks when the decorative sheet 50 is stretched in the high-strength direction.

[0149] Thus, even if the same pulling force is applied to the decorative sheet 50 used in the packaging body 40 or the individual packaging body 30 as when the release tab 33 is separated from the packaging sheet 31, the adhesive layer 52 and the decorative layer 53 are not prone to breakage. In particular, when the decorative sheet 50 is used in the packaging sheet 31, even if the packaging sheet 31 is stretched due to the user accidentally holding the release tab 33 when removing the sanitary napkin 1 from the packaging sheet 31, breakage of the decorative layer 53 and the adhesive layer 52 can be prevented. As a result, the degradation of the appearance quality of the packaging sheet 31 can be suppressed.

[0150] The determination method is as follows. For example... Figure 12A As shown, a tensile testing machine is used to clamp the gripping portion 321 (gp) of the fixing strap 32 with one chuck, and the lower end of the independent packaging body 30 is clamped at the central portion (gp) in the left-right direction with another chuck. Then, the distance between the chucks (e.g., 30 mm) is separated at a certain speed (e.g., 100 mm / min), and the maximum value of the load during the period from when the adhesive portion 322 of the fixing strap 32 is engaged with the packaging sheet 31 to when it is peeled off is determined. This maximum value is set as the maximum elongation strength (N) during the period when the fixing strap 32 is peeled off from the packaging sheet 31.

[0151] In the determination of the maximum elongation strength (N) with the welded section 36 open, firstly, a section is cut from the individual package 30. Figure 12B The area S shown is the entire width of the welded portion 36 on one side of the width direction of the individual packaging body 30, extending 25 mm upwards from the opening end 31O. Packaging sheets 31 are cut from both sides of the individual packaging body 30 within the area of ​​area S to form a sample. The inner portion (gp) of the cut sample in the width direction is held by the chuck of a tensile testing machine. In the case of a three-fold individual packaging body 30, three packaging sheets 31 are stacked in the sample. The first packaging sheet 31 from the top (the side where the opening end 31O is located) is held by one chuck, and the second and subsequent packaging sheets 31 from the top (the second and third sheets) are held by another chuck. Then, the distance between the chucks (e.g., 30 mm) is separated at a certain speed (e.g., 100 mm / min), and the sample is pulled along the width direction of the individual packaging body 30. Calculate the load (elongation strength) applied during the period until all welded portions 36 of the sample peel off, and obtain the maximum value (N). Take the average of the maximum values ​​(N) of the samples on both sides of the width direction as the maximum elongation strength (N) when the welded portions 36 are opened.

[0152] In addition, from Figure 3With the sanitary napkin 1 removed from the independent package 30, the longitudinal end of the package sheet 31 is clamped by one chuck of a tensile testing machine, and the longitudinal end of the release tab 33 is clamped by another chuck. The distance between the chucks (e.g., 20 mm) is separated at a certain speed (e.g., 100 mm / min), and the maximum value of the load during the period until the package sheet 31 and the release tab 33 are completely separated is determined. This maximum value is set as the maximum elongation strength (N) of the case where the release tab 33 separates from the package sheet 31.

[0153] The method for determining the elongation strength when the adhesive layer 52 or the decorative layer 53 breaks under the condition that the decorative piece 50 is stretched in the high-strength direction is as described above.

[0154] Furthermore, when the decorative piece 50 is used in the housing 41 of the package 40, the following is preferable: Preferably, when viewing the housing 41 from above, the three-dimensional decorative portion 54 (adhesive layer 52 and decorative layer 53) does not overlap with the predetermined fracture area Rc that will break upon opening. Viewing the housing 41 from above means viewing the housing 41 with the surface where the predetermined fracture area Rc is located facing upwards. Furthermore, when the three-dimensional decorative portion 54 is located on the surface where the predetermined fracture area Rc is located, it is preferable that the predetermined fracture area Rc does not overlap with the three-dimensional decorative portion 54. In other words, it is preferable that the three-dimensional decorative portion 54 is not located across the predetermined fracture area Rc and that the end of the three-dimensional decorative portion 54 does not reach the predetermined fracture area Rc.

[0155] For example, in Figure 7 and Figure 8 In the storage body 41, a predetermined fracture region Rc is provided on its back surface 41B, and there is no three-dimensional decorative part 54 on the back surface 41B. Therefore, the three-dimensional decorative part 54 does not overlap with the predetermined fracture region Rc. Figure 11A In the storage body 41, a predetermined fracture region Rc is provided on its side 41s, and there is no three-dimensional decorative part 54 on the side 41s. Therefore, the three-dimensional decorative part 54 does not overlap with the predetermined fracture region Rc. Figure 11B In the storage body 41, a three-dimensional decorative part 54 is provided at a position lower than the predetermined fracture area Rc, and the three-dimensional decorative part 54 does not overlap with the predetermined fracture area Rc.

[0156] If the above situation applies, when opening the housing 41, even if the decorative piece 50 is cut along the predetermined fracture area Rc, the three-dimensional decorative part 54 will not be cut. Therefore, the shape and appearance quality of the three-dimensional decorative part 54 can be maintained even after opening. Furthermore, if the predetermined fracture area Rc overlaps with the three-dimensional decorative part 54, there is a risk that the adhesive layer 52 may stretch during opening, or the three-dimensional decorative part 43 may detach from the piece 51. Therefore, by ensuring that the three-dimensional decorative part 54 does not overlap with the predetermined fracture area Rc, the above risks can be avoided, the ease of fracture of the predetermined fracture area Rc can be ensured, and the possibility of the three-dimensional decorative part 54 detaching from the piece 51 can be suppressed.

[0157] In addition, Figure 11B In the case of the storage body 41, the portion above the predetermined breakage area Rc is easily discarded after opening. Therefore, it is preferable to provide a three-dimensional decorative portion 54 below the predetermined breakage area Rc (on the side of the sealing portion 46). In this way, the user can appreciate the three-dimensional decorative portion 54 even after the storage body 41 is opened.

[0158] Furthermore, when the decorative piece 50 is used in the housing 41 of the encapsulation body 40, it is preferable that the three-dimensional decorative portion 54 (adhesive layer 52 and decorative layer 53) is provided on one of the multiple surfaces of the housing 41 and not on the surface opposite to that surface. For example, in Figure 6A In the storage body 41, only on the front 41F of the storage body 41 ( Figure 7 ) is provided with a three-dimensional decorative part 54, on its opposite side back surface 41B ( Figure 8 54. No three-dimensional decorative parts were provided.

[0159] By providing a three-dimensional decorative part 54 on one side of the storage body 41, users can visually perceive that the three-dimensional decorative part 54, giving them the impression that the sanitary napkin 1, like the three-dimensional decorative part 54, is easily deformable in a three-dimensional way. On the other hand, the opposite side of the storage body 41 is not easily visually recognized by users in stores or similar locations. Therefore, it is preferable not to provide the three-dimensional decorative part 54 on the opposite side of the storage body 41, and not to unnecessarily provide the three-dimensional decorative part 54 on the storage body 41. This reduces the risk of the three-dimensional decorative part 54 breaking or falling off. As a result, it is possible to suppress the degradation of the appearance quality of the storage body 41 and maintain the impression that the sanitary napkin 1 also has high-quality performance.

[0160] Moreover, it could also be, such as Figure 6ALike the storage body 41, the three-dimensional decorative part 54 is provided only on one of the multiple surfaces of the storage body 41, and not on the other surfaces. In this case, the risk of breakage or detachment of the three-dimensional decorative part 54 can be further reduced. In addition, in this case, it is preferable to provide the three-dimensional decorative part 54 on the front surface 41F of the storage body 41. In this way, the three-dimensional decorative part 54 is easily visually identified by users in stores, etc. Furthermore, the front surface 41F of the storage body 41 can be the largest surface among the multiple surfaces of the storage body 41, and the surface with the sales name (brand name), storage quantity, etc., clearly displayed.

[0161] However, not limited to the above, the three-dimensional decorative part 54 may be provided on multiple surfaces of the storage body 41, or on a surface other than the front surface 41F, or on a certain surface and the surface on the opposite side.

[0162] Alternatively, the three-dimensional decorative part 54 can be arranged across a certain face (e.g., front face 41f) of the storage body 41 and a face adjacent to that certain face (e.g., any one of the upper surface 41u, lower surface 41l, and side surface 41s). For example, in Figure 11A In the storage body 41, the three-dimensional decorative part 54 (pattern d6) is arranged across the front surface 41f and the upper surface 41u of the storage body 41. In this way, when the storage body 41 is visually recognized from a certain side (front surface 41f), a sense of depth is generated in the three-dimensional decorative part 54, and the three-dimensional decorative part 54 is visually recognized in a more three-dimensional way.

[0163] Furthermore, when the decorative piece 50 is used in the housing 41 of the encapsulation body 40, it is preferable that the three-dimensional decorative portion 54 is provided on the surface of the housing 41 among the multiple surfaces where the predetermined breakage region Rc is not provided. For example, in Figure 6A In the storage body 41, the three-dimensional decorative part 54 is provided on the front surface 41f of the storage body 41 but not on the back surface 41B and the upper surface of the storage body 41 where a predetermined fracture region Rc exists. Figure 11A In the storage body 41, the three-dimensional decorative part 54 is provided on the front 41f of the storage body 41 and is not provided on the side of the storage body 41 where there is a predetermined fracture area Rc.

[0164] When opening the package 41, the user can easily grasp the surface of the package 41 where the predetermined breakage area Rc exists. However, with the above-described structure, the user cannot easily touch the three-dimensional decorative part 54. Furthermore, with the above-described structure, the force exerted by the user pulling the package 41 (e.g., the force exerted by pulling the sealing member 43) is less likely to act on the three-dimensional decorative part 54. Therefore, breakage of the three-dimensional decorative part 54 can be suppressed, maintaining the appearance quality of the package 40. Additionally, it prevents the three-dimensional decorative part 54 from detaching and adhering to the user or the sanitary napkin 1.

[0165] Furthermore, when the decorative sheet 50 has an information labeling section 65 indicating information related to the stored sanitary napkin 1, it is preferable that the information labeling section 65 is formed of an ink-based printing layer 60 that does not overlap with the three-dimensional decorative section 54 (adhesive layer 52 and decorative layer 53). As the information labeling section 65, an identifier indicating the type of product provided in the storage body 41 of the packaging body 40 can be used. Figure 7 The labeling includes information such as "winged sanitary napkins," "daily use," and size, as well as the quantity of the individual packaging units 30 stored in the storage unit 41. Figure 7 (10 items). In addition, although not shown, the label of the type of goods provided on the packaging sheet 31 of the individual packaging body 30 can be used as an example ("winged", "daily use", etc.).

[0166] As a flat printed layer 60, the information marking section 65 has a lower probability of peeling off compared to the three-dimensional decorative section 54. Therefore, the item marking section 65 can more reliably display the information that the user wants to know when purchasing or using the product.

[0167] In addition, such as Figure 6A As shown, the package 40 (receiving body 41) is mostly provided with an coded marking portion 61 that can be read by an optical reading device. When the decorative sheet 50 is used in the package 40 and has the coded marking portion 61, it is preferable that the coded marking portion 61 is formed of a printed layer 60 that does not overlap with the adhesive layer 52 and the decorative layer 53.

[0168] Compared to the three-dimensional decorative section 54, the outline of the decoration formed by the ink-based printing layer 60 is clearer. Therefore, since the coded marking section 61 is formed by the flat printing layer 60 instead of the three-dimensional decorative section 54, visual recognizability is improved, and it can be accurately read by the reading device.

[0169] In addition, such as Figure 6A As shown, in the package 40, information related to the sanitary napkin 1 is centrally recorded on a table or similar surface. This information labeling group 63 (e.g., sales name, constituent materials, usage instructions, manufacturer, etc.) is indicated by relatively small text. Therefore, the information labeling group 63 is not formed by a three-dimensional decorative section 54, but by a flat ink-based printing layer 60, making it easy for the user to read the information labeling group 63.

[0170] In addition, such as Figure 7 As shown, the packaging body 40 (storage body 41) is mostly provided with an item identification portion 62 indicating the sanitary napkin 1 that is stored. When the decorative sheet 50 is used in the packaging body 40 and has an item identification portion 62, it is preferable that the item identification portion 62 is formed by a three-dimensional decorative portion 54 (adhesive layer 52 and decorative layer 53).

[0171] In this way, the user sees the three-dimensionally marked item label 62, thus easily perceiving the actual sanitary napkin 1 stored there as also having a three-dimensional, deformed, and fitting appearance. Furthermore, in situations such as... Figure 7 and Figure 8 In the case of the illustrated package 40 having multiple item identification portions 62, at least one of the multiple item identification portions 62 can be formed by a three-dimensional decorative portion 54. The item identification portion 62 on the back side 41B of the housing 41, which is provided with a sealing member 53, is formed by a printed layer 60, thereby preventing the three-dimensional decorative portion 54 from falling off when the package is opened.

[0172] In addition, such as Figure 8 As shown, there exists a situation where the packaging body 40 has a sanitary napkin set identification section 64 that displays products under the same brand name. In the sanitary napkin set identification section 64, the shapes of other sanitary napkins with different sizes and properties (presence or absence of wings 1w, daytime use, nighttime use, etc.) are indicated along with the stored sanitary napkin 1. Figure 8 In this case, a sanitary napkin set identification section 64 is provided on the back 41B (opening cover) of the storage body 41, and is therefore formed by the printing layer 60. However, the sanitary napkin set identification section 64 may also be formed by the three-dimensional decorative section 54. In particular, it is preferable that the sanitary napkin set identification section 64 is formed by the three-dimensional decorative section 54 when it is located on a surface other than the opening cover of the packaging body 40. In this way, it can give the user the impression that not only the stored sanitary napkin 1 is three-dimensionally deformed, but also the other sanitary napkins are three-dimensionally deformed.

[0173] However, it is not limited to the above. The markings (61-64) provided on the package 40 can be formed by the three-dimensional decorative part 54 or by the flat printing layer 60 based on ink.

[0174] Alternatively, the decorative sheet 50 may not only have a three-dimensional decorative portion 54, but also a flat printed layer 60 on the surface of the sheet 51, i.e., a conventional printed layer 60 formed by ink printing. In this case, it is preferable to provide the three-dimensional decorative portion 54 (adhesive layer 52 and decorative layer 53) on a portion of the printed layer 60. For example, in Figure 7 In this process, a three-dimensional decorative portion 54, also a curved pattern d1, is superimposed on the printed layer 60, which is a plurality of curved patterns p1. In addition, a three-dimensional decorative portion 54 with a petal pattern d2 is superimposed on the printed layer 60, which represents the color p2 of the flower.

[0175] In this way, the raised details of the decoration displayed by the printed layer 60 are visually recognizable, allowing the user to further appreciate the decoration. Furthermore, when the decoration is a three-dimensional decorative section 54, it is more noticeable than when all the decoration is three-dimensional decorative sections 54. Therefore, the user is more likely to focus on the three-dimensional decorative section 54, giving the sanitary napkin 1 a three-dimensional impression. Additionally, the printed layer 60 is covered by the three-dimensional decorative section 54, making it less prone to peeling. Conversely, even if the three-dimensional decorative section 54 is peeled off from the sheet 51, the printed layer 60 remains visually recognizable. This helps to prevent a decrease in the appearance quality of the decorative sheet 50 and ensures the user's impression of the high quality of the sanitary napkin 1.

[0176] Furthermore, it is preferable that the maximum thickness of the adhesive layer 52 is greater than the maximum thickness of the decorative layer 53. For example, it is preferable that the thickness of the adhesive layer 52 is in the range of about 10 to 80 μm and the thickness of the decorative layer 53 is in the range of about 4 to 6 μm. This allows the thinner decorative layer 53 to protrude further from the surface of the surrounding sheet 51. Therefore, the three-dimensional decorative portion 54 becomes more three-dimensional, and the user can easily identify the presence of a three-dimensional decoration. In addition, as mentioned above, the thickness of the decorative layer 53 (e.g., Figure 9 The length of 53t is set as the length in a direction orthogonal to the surface of the decorative layer 53. The thickness of the adhesive layer 52 (e.g., ...) Figure 9 The thickness t2) is set as the length in the thickness direction of sheet 51.

[0177] Furthermore, it is preferable that the three-dimensional decorative portion 54 (the portion where the decorative layer 53 overlaps with the adhesive layer 52) has portions with varying thicknesses. For example, in Figure 9 In the three-dimensional decorative part 54, the central part in the predetermined direction is recessed and thinned. Figure 10A In the three-dimensional decorative part 54, the thickness of the end in the predetermined direction is thinner than the thickness of the adjacent part. In this way, the three-dimensional decorative part 54 is more easily recognized visually in three dimensions, so that the user is more likely to have the impression that the sanitary napkin 1 is also deformed in three dimensions and fits the body.

[0178] In addition, preferably, such as Figure 9 , Figure 10A as well as Figure 10B As shown, in the three-dimensional decorative portion 54, the thickness of the end portion 54E in the predetermined direction is smaller than the thickness of the portion 54I adjacent to the end portion 54E in the predetermined direction. In this way, the three-dimensional decorative portion 54 protrudes from the end portion 54E toward the portion 54I in the predetermined direction and is visually recognizable, making it easier to visually identify the three-dimensional decorative portion 54 in three dimensions.

[0179] In addition, such as Figure 9 and Figure 10BAs shown, in the three-dimensional decorative portion 54, it is preferable that the central portion in the predetermined direction (towards the sheet 51 in the thickness direction) is recessed. This makes the surface of the three-dimensional decorative portion 54 have a concave-convex shape, making it easier to visually identify the three-dimensional decorative portion 54. However, it is not limited to the above situation; it can also be, for example... Figure 10A As shown, the thickness of the three-dimensional decorative part 54, except for the end in the predetermined direction, is constant. Alternatively, the central part of the three-dimensional decorative part 54 in the predetermined direction may be convex and have a larger thickness.

[0180] In addition, such as Figure 9 and Figure 10A As shown, it is preferable that the adhesive layer 52 has a protrusion 52E extending in a predetermined direction relative to the decorative layer 53. The adhesive layer 52 can extend to both sides in the predetermined direction as shown, or it can extend only to one side in the predetermined direction. When an external force is applied to the decorative piece 50 (here, the housing 41), the force is easily applied to the protrusion 52E, which is the end of the adhesive layer 52. However, the adhesive layer 52 is formed from an adhesive material and is elastic, so it is easy to deform along with the piece 51. Therefore, it is possible to suppress the adhesive layer 52 from peeling off from the piece 51. In particular, the maximum thickness t1 of the protrusion 52E of the adhesive layer 52 is smaller than the maximum thickness t2 of the portion of the adhesive layer 52 that overlaps with the decorative layer 53 (t1 < t2), so that the protrusion 52 is more likely to deform along with the piece 51. In addition, the decorative layer 53 is not located at the end where force is easily applied, thereby suppressing the peeling of the adhesive layer 52 and the decorative layer 53, and the cracking of the decorative layer 53. The visually recognizable three-dimensional decorative part 54 makes users easily perceive that sanitary napkin 1 is also a high-quality product.

[0181] Furthermore, it is preferable that the length L1 of the protrusion 52E in the predetermined direction is shorter than the length L2 of the portion of the adhesive layer 52 that overlaps with the decorative layer 53 in the predetermined direction (L1 < L2). By preventing the protrusion 52E from becoming unnecessarily longer, it is possible to prevent a decrease in the aesthetic appeal (such as metallic luster) produced by the decorative layer 53. However, this is not limited to the above situation, and other possibilities may also exist, such as... Figure 10B As shown, the adhesive layer 52 does not have a protrusion 52E. That is, the entire surface area of ​​the adhesive layer 52 may be covered by the decorative layer 53.

[0182] Thus far, the relationship between the thickness and length of each part has been explained, and the comparison of the thickness and length can be performed using known methods. For example, the comparison can be made by visually observing the object parts, or by comparing images taken using an optical microscope after magnifying the object parts. Alternatively, the comparison can be made based on cross-sectional images obtained by cutting the object parts.

[0183] ===Manufacturing Method of Decorative Piece 50===

[0184] Figure 13 This diagram illustrates the manufacturing method of the decorative piece 50. The aforementioned decorative piece 50 can utilize... Figure 13 The manufacturing apparatus 70 is used for manufacturing. The manufacturing apparatus 70 includes a conveying mechanism 71, an ink ejection device 72, an adhesive ejection device 73, a first irradiation device 74, a decorative layer conveying mechanism 75, and a second irradiation device 76.

[0185] The conveying mechanism 71 is a mechanism for conveying the continuous body 51c of sheet 51 along the conveying direction. Examples of conveying mechanisms 71 include... Figure 13 The conveyor rollers shown, the conveyor belt (not shown), etc. The ink ejection device 72 ejects ink from the continuous body 51c of the sheet 51 conveyed by the conveying mechanism 71 along the conveying direction to form a flat, ordinary printed layer 60.

[0186] Downstream, the adhesive spraying device 73 sprays the adhesive forming the adhesive layer 52 directly onto the continuous body 51c of the sheet 51, or sprays the adhesive forming the adhesive layer 52 onto the printed layer 60. In this embodiment, a colorless and transparent ultraviolet-curable adhesive is sprayed. Then, the first irradiation device 74 irradiates the adhesive layer 52 with light (in this case, ultraviolet light) to cure it. However, the first irradiation device 74 irradiates with ultraviolet light to a degree that does not completely cure the adhesive layer 52. This ensures adhesion while fixing the shape of the adhesive layer 52. For this purpose, the intensity and irradiation time of the ultraviolet light are adjusted.

[0187] In this embodiment, an inkjet device is exemplified as the ink ejection device 72 and the adhesive ejection device 73. However, it is not limited to this, and various printing methods (liquid coating methods) such as gravure printing and offset printing can also be used to form the printing layer 60 and the adhesive layer 52.

[0188] Subsequently, the decorative layer conveying mechanism 75 supplies the continuous body 53c of the decorative layer 53 onto the adhesive layer 52. As the decorative layer conveying mechanism 75, an apparatus having an unshown feed roller for feeding out the continuous body 53c of the decorative layer 53, a conveying roller 751, and an unshown winding roller for winding the remaining portion of the continuous body 53c of the decorative layer 53 can be illustrated.

[0189] In a direction orthogonal to the conveying direction, the length of the continuous body 53c of the decorative layer 53 is set to be greater than or equal to the length of the region where the adhesive layer 52 is formed. That is, one or more adhesive layers 52 formed on the continuous body 51c of the sheet 51 are completely covered by the continuous body 53c of the decorative layer 53. In addition, the continuous body 53c of the decorative layer 53 is supplied in a manner that is in contact with the surface of the adhesive layer 52. The adhesive layer 52 has adhesive properties, so the continuous body 53c of the decorative layer 53 is adhered to the adhesive layer 52. During this process, the continuous body 53c of the decorative layer 53 and the adhesive layer 52 are also conveyed, so that the decorative layer 53 adhered to the adhesive layer 52 and the decorative layer 53 not in contact with the adhesive layer 52 are separated. The remaining portion of the continuous body 53c of the decorative layer 53 not adhered to the adhesive layer 52 is wound on a winding roller and recycled.

[0190] Finally, the second irradiation device 76 irradiates the adhesive layer 52 with light (in this case, ultraviolet light) to cure it, thus completely curing the adhesive layer 52 through the decorative layer 53. As a result, the adhesive layer 52 and the decorative layer 53 are firmly bonded together and integrated to form a three-dimensional decorative part 54.

[0191] According to the manufacturing method described above, a decorative layer 53 can be provided on the adhesive layer 52, forming a three-dimensional decorative portion 54 that protrudes from the surface of the sheet 51 in the thickness direction of the decorative layer 53. By using the decorative sheet 50 with the three-dimensional decorative portion 54 on at least one of the individual packaging body 30 and the encapsulation body 40 of the sanitary napkin, it is possible to give the user the impression of a three-dimensional product. However, the manufacturing method described above is just one example, and the manufacturing method of the decorative sheet 50 is not particularly limited.

[0192] The above-described embodiments are provided for easy understanding of this utility model and are not intended to limit its interpretation. It is self-evident that this utility model can be modified and improved without departing from its spirit, and that it includes equivalents.

Claims

1. A decorative sheet for absorbent products, characterized in that, The decorative sheet for this absorbent product is used on the individual packaging or encapsulation of the absorbent article and is decorated accordingly. The decorative sheet used in this absorbent product has the following characteristics: The film has mutually orthogonal longitudinal and transverse directions; An adhesive layer is disposed on the surface of the sheet; and A decorative layer, disposed above the adhesive layer, has a maximum thickness of less than 10 μm. The decorative layer is located in a region that is visually visible to the user and protrudes from the surface of the sheet in the thickness direction of the sheet. The absorbent article has an absorbent body. The first elongation is defined as the amount of elongation of the decorative piece at which the adhesive layer breaks when the decorative piece elongates in the direction with higher elongation strength in the longitudinal and transverse directions. The amount of elongation of the absorbent when it breaks due to the elongation of the absorbent in the width direction of the absorbent article is defined as the second elongation. At this time, the first elongation is greater than the second elongation.

2. The decorative sheet for absorbent products according to claim 1, characterized in that, When the elongation of the absorbent body at the point of breakage due to elongation in the length direction of the absorbent article is defined as the third elongation, The first elongation is greater than the third elongation.

3. The decorative sheet for absorbent products according to claim 1 or 2, characterized in that, When the elongation of the decorative piece at the point where the decorative layer breaks due to elongation in the direction of higher elongation strength is defined as the fourth elongation, The fourth elongation is greater than the second elongation.

4. The decorative sheet for absorbent products according to claim 1 or 2, characterized in that, The encapsulation of the absorbent article has a housing body with a predetermined fracture area that breaks upon opening. The maximum elongation strength at which the predetermined fracture region fractures is less than the elongation strength at which the adhesive layer fractures when the decorative piece elongates in the direction of higher elongation strength.

5. The decorative sheet for absorbent products according to claim 4, characterized in that, The maximum elongation strength at which the predetermined fracture region breaks is less than the elongation strength at which the decorative layer breaks when the decorative piece elongates in the direction of higher elongation strength.

6. The decorative sheet for absorbent products according to claim 5, characterized in that, The decorative sheet for this absorbent product is used in the storage container. The encapsulation of the absorbent article includes a sealing member that covers the predetermined fracture area. The predetermined fracture area is broken by pulling on the sealing member.

7. The decorative sheet for absorbent products according to claim 1 or 2, characterized in that, The absorbent article's individual packaging has a packaging sheet and a retaining strap across the open end of the packaging sheet. The maximum elongation strength when the fixing strip is peeled off from the packaging sheet is less than the elongation strength when the decorative layer breaks when the decorative sheet is stretched in the direction of higher elongation strength.

8. The decorative sheet for absorbent products according to claim 1 or 2, characterized in that, The individual packaging of the absorbent article has a packaging sheet, At both ends of the package sheet along the direction of the opening end, the folded package sheet is joined together by a weld joint. The maximum elongation strength when the welded portion is open is less than the elongation strength at which the decorative layer breaks when the decorative piece is elongated in the direction of higher elongation strength.

9. The decorative sheet for absorbent products according to claim 1 or 2, characterized in that, The decorative sheet for this absorbent product is used in the storage body of the encapsulation of the absorbent article. The storage container has a predetermined fracture area that will break upon opening. When viewed from above, the adhesive layer and the decorative layer do not overlap with the predetermined fracture area.

10. The decorative sheet for absorbent products according to claim 1 or 2, characterized in that, The decorative sheet for this absorbent product is used in the storage body of the encapsulation of the absorbent article. The adhesive layer and the decorative layer are disposed on one of the multiple surfaces of the housing and not on the opposite side of that surface.

11. The decorative sheet for absorbent products according to claim 1 or 2, characterized in that, The decorative sheet for this absorbent product is used in the storage body of the encapsulation of the absorbent article. The storage container has a predetermined fracture area that will break upon opening. The adhesive layer and the decorative layer are disposed on the surface of the multiple surfaces of the housing that is not provided with the predetermined fracture area.

12. The decorative sheet for absorbent products according to claim 1 or 2, characterized in that, The decorative layer is formed from any one of metal foil, holographic foil, or pigment foil.

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