Decorative film for absorbent products

Abstract

The invention provides a decorative film for an absorbent product. The purpose of the present invention is to impress a user who visually recognizes or touches a three-dimensional decorative layer of a decorative film used in any one of an absorbent article, an independent packaging body for the absorbent article, and a packaging body for the absorbent article that the absorbent article is a product in which the absorbent article deforms softly and finely. A decorative film for an absorbent product, which is used in any one of an absorbent article (1), an individual packaging body (30) for the absorbent article, and a packaging body for the absorbent article, is provided with: a film (51); an adhesive layer (52) provided on the surface of the film; and a decorative layer (53) which is provided on the adhesive layer and has a maximum thickness of 10 [mu] m or less, the decorative layer being provided at a site where a finger of a user can contact and protruding from the surface of the film in the thickness direction of the film, and the minimum width of the adhesive layer, the average fiber diameter of the surface sheet of the absorbent article, and the average inter-fiber distance being less than 0.4 mm.

Description

Technical Field

[0001] The present invention relates to a decorative film for absorbent products. Background Art

[0002] In Patent Document 1, a method for manufacturing a decorated sheet is disclosed in which an identification layer (letters, graphics, etc.) composed of a foil having a metal component is formed on a material sheet. Specifically, it is the following manufacturing method: A transfer film having a foil and a material sheet are overlapped and conveyed between a pattern roll and a support roll, and the foil corresponding to the pattern on the outer peripheral surface of the pattern roll is pressed onto the material sheet to form an identification layer.

[0003] Prior Art Documents

[0004] Patent Documents

[0005] Patent Document 1: Japanese Unexamined Patent Application Publication No. 2022-12041 Summary of the Invention

[0006] Problems to be Solved by the Invention

[0007] In the decorated sheet of Patent Document 1, an identification layer is formed by pressing a foil. Therefore, the identification layer is concave with respect to the surroundings, and a user touching the identification layer can feel the unevenness. However, in order to stably press the foil onto the material sheet, it is necessary to appropriately ensure the width of the convex portion of the pattern roll. Therefore, the width (unevenness) of the identification layer becomes large, and it is difficult to express the softness (fiber fineness) of a sheet such as a nonwoven fabric constituting an absorbent article using the identification layer. Thus, even if a user visually recognizes or touches the identification layer of Patent Document 1, it is difficult to imagine the softness of the absorbent article, and there is room for improvement in the three-dimensional identification layer.

[0008] The present invention has been made in view of the above problems, and an object thereof is to give an impression to a user who visually recognizes or touches a three-dimensional decorative layer of a decorative film used in any one of an absorbent article, an independent package of an absorbent article, and an encapsulation of an absorbent article that the absorbent article is a product that is soft and deforms finely.

[0009] Means for Solving the Problems

[0010] The main invention for achieving the above object is a decorative film for absorbent products, characterized in that

[0011] the decorative film for absorbent products is used in any one of an absorbent article, an independent package of an absorbent article, and an encapsulation of an absorbent article and is decorated,

[0012] the decorative film for absorbent products has:

[0013] a film;

[0014] An adhesive layer provided on the surface of the film; and

[0015] A decorative layer provided on the adhesive layer and having a maximum thickness of 10 μm or less,

[0016] The decorative layer is provided at a position where a user's finger can touch and protrudes from the surface of the film in the thickness direction of the film,

[0017] The minimum width of the adhesive layer, the average fiber diameter of the surface sheet of the absorbent article, and the average distance between fibers of the surface sheet are less than 0.4 mm.

[0018] Other features of the present invention will be clarified by the description in this specification and the drawings.

[0019] Effects of the Invention

[0020] According to the present invention, it is possible to give an impression to a user who visually recognizes or touches the three-dimensional decorative layer of the decorative film used in any one of the absorbent article, the individual package of the absorbent article, and the package of the absorbent article that the absorbent article is a product that is soft and deforms delicately. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a top view of the sanitary napkin 1 observed from the skin side in the unfolded state.

[0022] Figure 2 is a schematic cross-sectional view of the sanitary napkin 1.

[0023] Figure 3 is a top view of the individual package 30 of the sanitary napkin observed from the non-skin side in the unfolded state.

[0024] Figure 4 is a top view of the individual package 30 of the sanitary napkin observed from the skin side during the unfolding process.

[0025] Figure 5 is a top view of the individual package 30 of the sanitary napkin.

[0026] Figure 6A is a perspective view of the package 40 of the sanitary napkin, Figure 6B is a view showing the state where the storage body 41 is opened.

[0027] Figure 7 is a front view of the package 40.

[0028] Figure 8 is a rear view of the package 40.

[0029] Figure 9A , Figure 9B, Figure 9C , Figure 9D is a diagram for explaining the minimum width W52m of the adhesive layer 52.

[0030] Figure 10 is a diagram for explaining the average fiber diameter and the average fiber interval.

[0031] Figure 11A and Figure 11B is a diagram for explaining the decorative film 50.

[0032] Figure 12A and Figure 12B is a diagram for explaining the decorative film 50.

[0033] Figure 13 is a diagram for explaining the separate adhesive layer 55.

[0034] Figure 14 is a diagram for explaining the manufacturing method of the decorative film 50.

[0035] Explanation of reference numerals

[0036] 1, sanitary napkin (absorbent article); 2, topsheet; 3, middle sheet; 4, backsheet; 5, wing; 6, side sheet; 8, adhesive part; 9, adhesive part; 10, absorber; 11, absorbent core; 12, core wrap sheet; 20, compression part; 30, individual package of sanitary napkin; 31, packaging sheet; 32, fixing band; 33, release sheet; 34, release sheet; 35, joint part; 36, welded part; 40, package of sanitary napkin; 41, storage body; 42, main body part; 43, sealing member; 50, decorative film; 51, film; 52, adhesive layer; 52E, protruding part; 53, decorative layer; 54, three-dimensional decorative part; 55, separate adhesive layer (other adhesive layer); 60, printing layer; 70, manufacturing apparatus; 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 description of the preferred embodiments

[0037] According to the description in this specification and the drawings, at least the following matters are clarified.

[0038] (Mode 1)

[0039] A decorative film for an absorbent product, characterized in that

[0040] The decorative film for the absorbent product is used for any one of an absorbent article, an individual package of the absorbent article, and a package of the absorbent article and is decorated. The decorative film for the absorbent product has: a film; an adhesive layer provided on the surface of the film; and a decorative layer provided on the adhesive layer and having a maximum thickness of 10 μm or less. The decorative layer is provided at a position where a user's finger can touch and protrudes from the surface of the film in the thickness direction of the film. The minimum width of the adhesive layer, the average fiber diameter of the surface sheet of the absorbent article, and the average distance between fibers of the surface sheet are less than 0.4 mm.

[0041] According to Mode 1, even for a decorative layer with a relatively thin maximum thickness, it can protrude in the thickness direction of the sheet by overlapping with the adhesive layer. In addition, compared with the case where the minimum width of the adhesive layer is 0.4 mm or more, the adhesive layer easily enters between the fingerprints of the finger, and it is easier for the user to visually and tactilely recognize that the product has a three-dimensional and delicate decoration. Thus, it is possible to give the user an impression that the absorbent article is also a product that deforms softly and delicately like a delicate decoration. Moreover, compared with the case where the average fiber diameter and the average distance between fibers of the surface sheet are 0.4 mm or more, the user can easily feel the minute irregularities formed by the fibers of the surface sheet between the fingerprints of the finger. Thus, the user can accurately feel that the actual absorbent article also deforms softly and delicately.

[0042] (Mode 2) Based on the decorative film for the absorbent product described in Mode 1,

[0043] The maximum thickness of the adhesive layer is larger than the maximum thickness of the decorative layer.

[0044] According to Mode 2, it is possible to further protrude the decorative layer in the thickness direction of the sheet. In addition, since the thickness of the adhesive layer having adhesiveness and elasticity is larger, the finger of the user touching the decorative layer and the adhesive layer is easily pushed back, and it is easier for the user to tactilely recognize the application of a delicate decoration.

[0045] (Mode 3) Based on the decorative film for the absorbent product described in Mode 1 or 2,

[0046] The maximum thickness of the portion where the decorative layer overlaps with the adhesive layer and the average fiber diameter of the surface sheet are less than 50 μm.

[0047] According to the third embodiment, compared with the case where the maximum thickness of the portion where the decorative layer overlaps the adhesive layer and the average fiber diameter of the surface sheet is 50 μm or more, most of the adhesive layer and most of the fibers of the surface sheet are easy to enter between the fingerprints of the fingers. As a result, the user can easily recognize that a delicate decoration is applied by tactile sense, and can accurately feel that the actual absorbent article is also soft and delicately deformed.

[0048] (Aspect 4) In the decorative film for absorbent products according to any one of aspects 1 to 3,

[0049] The decorative film used for the absorbent product has another adhesive layer protruding from the surface of the film and not overlapping with the decorative layer, and the minimum width of the other adhesive layer is less than 0.4 mm. The absorbent article has a width direction and a length direction, and has a pair of side panels arranged along the length direction at both ends of the width direction on the skin side of the surface sheet, and the dynamic friction coefficient of the skin side of the surface sheet is different from the dynamic friction coefficient of the skin side of the side panel.

[0050] According to mode 4, compared with the case where the minimum width of the other adhesive layer is 0.4 mm or more, the other adhesive layer is easier to enter between the fingerprints of the finger. As a result, the user can easily recognize the case where the delicate decoration is applied by tactile sense. In addition, the user is easy to receive the impression that the product is carefully manufactured with decorations with different tactile sensations (frictional sensations). Moreover, by touching the surface sheet and side sheets with different frictional sensations, the user can accurately feel that the actual absorbent article is also carefully manufactured using different materials according to the purpose.

[0051] (Aspect 5) The decorative film for absorbent products according to any one of aspects 1 to 4,

[0052] The portion of the film having the decorative layer and the adhesive layer has better bendability and higher rigidity than the portion of the film not provided with the adhesive forming the adhesive layer.

[0053] According to the fifth aspect, the decorative layer and the adhesive layer have good bending properties and elasticity, and have high rigidity and hardness. Therefore, when the user touches the decorative layer and the adhesive layer, the finger is easily pushed back and its shape is easily maintained. As a result, the user can easily recognize that a delicate decoration is applied by tactile sense.

[0054] (Aspect 6) In the decorative film for absorbent products according to any one of aspects 1 to 5,

[0055] A portion where the decorative layer and the adhesive layer overlap each other has a portion with different thicknesses.

[0056] According to Mode 6, the decorative layer can be easily visually recognized three-dimensionally, and the corners with thickness variations can easily fit into the fingerprints of the fingers. Thus, it is easy for the user to recognize both visually and tactilely the situation where a three-dimensional and delicate decoration is applied.

[0057] (Mode 7) Based on the decorative film for absorbent products described in Mode 6,

[0058] At the portion where the decorative layer overlaps with the adhesive layer, the thickness of the end portion in a predetermined direction is smaller than the thickness of the portion adjacent to the end portion and closer to the inside in the predetermined direction.

[0059] According to Mode 7, the portion where the decorative layer overlaps with the adhesive layer can easily fit into the fingerprints of the fingers from its thinner end portion. Thus, it is easy for the user to recognize tactilely the situation where a delicate decoration is applied.

[0060] (Mode 8) Based on the decorative film for absorbent products described in any one of Modes 1 to 7,

[0061] The decorative layer is a layer formed of any one of a metal foil, a holographic foil, and a pigment foil.

[0062] According to Mode 8, the aesthetic property of the three-dimensional decorative layer can be improved. It can give the user who visually recognizes or touches the decorative layer with a metallic luster formed of a metal foil or a holographic foil the impression that the absorbent article is a high-quality product. On the other hand, the decorative layer formed of a pigment foil becomes a matte decoration with a dull finish, which can give the user the impression that it is a product with a stable sense of security.

[0063] (Mode 9) Based on the decorative film for absorbent products described in any one of Modes 1 to 8,

[0064] The decorative film for absorbent products has a first adhesive layer with a minimum width of less than 0.4 mm and a second adhesive layer adjacent to the first adhesive layer. In the width direction of the first adhesive layer, the minimum interval between the first adhesive layer and the second adhesive layer is 0.47 mm or more, and the value obtained by dividing the total area of one or more of the decorative layers by the planar area of the film is 0.8% or more and less than 6.8%.

[0065] According to Mode 9, compared with the case where the minimum interval between the first adhesive layer and the second adhesive layer is less than 0.47 mm, the first adhesive layer is more likely to be visually recognized as a separate decoration with a smaller width, and the first adhesive layer is more likely to enter between the fingerprints of a finger separately. Thus, it is easier for the user to recognize both visually and tactilely that a delicate decoration has been applied. In addition, compared with the case where the area ratio of the decoration layer is less than 0.8%, the probability that the decoration layer is visually recognized or touched by the user is increased. Conversely, compared with the case where the area ratio of the decoration layer is 6.8% or more, it is easier to ensure the interval of the decoration layer, and the decoration is more likely to be visually recognized or touched separately. Thus, it is easier for the user to recognize that a delicate decoration has been applied.

[0066] (Mode 10) Based on the decorative film for an absorbent product described in any one of Modes 1 to 9,

[0067] The absorbent article has an absorbent core containing a superabsorbent polymer, and the minimum width of the adhesive layer is smaller than the maximum particle diameter of the superabsorbent polymer.

[0068] According to Mode 10, through the adhesive layer with a width smaller than the maximum particle diameter of the superabsorbent polymer, it is easier for the user to recognize tactilely that a delicate decoration has been applied. On the other hand, it is easier for the user to recognize the presence of the superabsorbent polymer with a maximum particle diameter larger than the minimum width of the adhesive layer, and the uneasiness about leakage can be alleviated.

[0069] (Mode 11) Based on the decorative film for an absorbent product described in Mode 10,

[0070] The minimum width of the adhesive layer is smaller than the average particle diameter of the superabsorbent polymer.

[0071] According to Mode 11, through the adhesive layer with a width smaller than the average particle diameter of the superabsorbent polymer, it is easier for the user to recognize tactilely that a delicate decoration has been applied. On the other hand, it is easier for the user to recognize the presence of the superabsorbent polymer with an average particle diameter larger than the minimum width of the adhesive layer, and the uneasiness about leakage can be alleviated.

[0072] (Mode 12) Based on the decorative film for an absorbent product described in any one of Modes 1 to 11,

[0073] The decorative film for the absorbent product has a third adhesive layer and a fourth adhesive layer, the maximum thickness of the third adhesive layer is different from the maximum thickness of the fourth adhesive layer, the absorbent article has a width direction and a length direction, and a pair of side sheets arranged along the length direction are provided at both ends in the width direction on the skin side of the surface sheet, and the average thickness of the surface sheet is different from the average thickness of the side sheets.

[0074] According to Mode 12, users who touch the third adhesive layer and the fourth adhesive layer are likely to receive the impression that the product is a carefully manufactured item with decorations of different thicknesses. Moreover, by touching the surface sheet and the side sheet with different thicknesses, the user can accurately feel that the actual absorbent article is also carefully manufactured using materials of different thicknesses according to its intended use.

[0075] ===Embodiment===

[0076] Hereinafter, as an absorbent article, a sanitary napkin is taken as an example to illustrate an embodiment of a decorative film for an absorbent product used in any one of an absorbent article, an individual package of an absorbent article, and an encapsulation of an absorbent article. The absorbent article is not limited to a sanitary napkin, and also includes disposable diapers of the underwear type or belt type, sanitary pads, panty liners, light incontinence pads, urine absorbent pads, breast pads, axillary sweat pads, disposable diapers for pets, and other absorbent articles.

[0077] <<Basic Structure of Sanitary Napkin 1>>

[0078] Figure 1 It is a top view obtained by observing Sanitary Napkin 1 in the unfolded state from the skin side. Figure 2 It is a schematic cross-sectional view of Sanitary Napkin 1. The unfolded Sanitary Napkin 1 has a length direction, a width direction, and a thickness direction that are orthogonal to each other. In the length direction, the side that abuts against the lower abdomen of the wearer is called the "front side", and the side that abuts against the buttocks of the wearer is called the "rear side". In addition, in the thickness direction of Sanitary Napkin 1, the side that abuts against the skin of the wearer is called the "skin side", and the opposite side is called the "non-skin side".

[0079] As Figure 2 shown, Sanitary Napkin 1 has a surface sheet 2, an intermediate sheet 3, an absorber 10, a back sheet 4, wing pieces 5, and side sheets 6. The materials adjacent in the thickness direction are joined and fixed using an adhesive such as a hot melt adhesive (not shown). The surface sheet 2 and the intermediate sheet 3 are liquid-permeable sheet members, and examples include non-woven fabrics. The back sheet 4 is a liquid-impermeable sheet member, and examples include resin films. The side sheets 6 are folded back from the end portions in the width direction on the non-skin side surface of the absorber 10 to be located at the end portions in the width direction on the skin side surface of the surface sheet 2. The back sheet 4 and the wing pieces 5 project outward in the width direction with respect to the side sheets 6 to form a wing portion 1w at the central portion in the length direction of Sanitary Napkin 1.

[0080] In addition, the surface sheet 2 that comes into contact with the wearer's skin can also be a sheet made of cotton, which is a natural fiber (for example, a sheet member formed of 100% cotton, a mixed sheet of cotton and thermally bonded non-woven fabric, etc.). In this way, irritation to the wearer's skin can be reduced. In this case, as shown in the drawings described later, by providing a pattern indicating cotton on the sanitary napkin 1, the individual package 30, and the encapsulation 40, the fact that cotton is used can be indicated to the user. However, the surface sheet 2 does not have to be a cotton sheet.

[0081] The absorber 10 is a member that absorbs and holds excreta inside. Figure 2 The absorber 10 has an absorbent core 11 and a core wrapper sheet 12 that covers the absorbent core 11. The absorbent core 11 is formed into a predetermined shape from pulp fibers, cellulose-based absorbent fibers, etc., which are liquid-absorbent fibers. The core wrapper sheet 12 is a liquid-permeable sheet member, and cotton paper, etc., can be exemplified. However, the structure of the absorber 10 is not limited to the above structure. For example, it can also be a SAP sheet in which a SAP layer is attached to a hydrophilic sheet, an airlaid sheet in which liquid-absorbent fibers are formed into a sheet by the air-laying method, etc.

[0082] The basic structure of the sanitary napkin 1 has been described above, but the structure of the sanitary napkin is not limited to the above structure. For example, it can also be a sanitary napkin that does not have the wing portion 1w.

[0083] <<Individual Package 30 of Sanitary Napkin>>

[0084] Figure 3 This is a top view obtained by observing the individual package 30 of the sanitary napkin in the unfolded state from the non-skin side. Figure 4 This is a top view obtained by observing the individual package 30 of the sanitary napkin during the unfolding process from the skin side. Figure 5 This is a top view of the individual package 30 of the sanitary napkin.

[0085] The individual package 30 of the sanitary napkin 1 (hereinafter also referred to as "individual package 30") is formed by individually packaging the sanitary napkin 1 with a packaging sheet 31, and includes the sanitary napkin 1, the packaging sheet 31, the fixing band 32, and the release sheets 33, 34. The packaging sheet 31 is a rectangular sheet member, and resin film, non-woven fabric, paper, and a sheet formed by laminating and combining the above materials, etc., can be exemplified. The length direction of the packaging sheet 31 corresponds to the length direction of the sanitary napkin 1, and the width direction, which is the short side direction of the packaging sheet 31, corresponds to the width direction of the sanitary napkin 1. The fixing band 32 is provided at the end in the length direction of the packaging sheet 31.

[0086] As Figure 3As shown, on the non-skin side of the sanitary napkin 1 (i.e., the non-skin side of the backsheet 4), there are provided a plurality of adhesive portions 8, 9 formed by coating an adhesive or the like. In the main body portion of the sanitary napkin 1, a plurality of rectangular adhesive portions 8 extending in the length direction are arranged in the width direction. The adhesive portion 8 of the main body portion is used to fix the main body portion of the sanitary napkin 1 to the inner side of the underwear of the wearer. In addition, in the wing portion 1w, a plurality of rectangular adhesive portions 9 extending in the length direction are also arranged in the width direction. When the sanitary napkin 1 is worn, the wing portion 1w is bent and fixed to the outer side of the underwear by the adhesive portion 9. In addition, the shape, number, and arrangement of the adhesive portions 8, 9 are not limited to Figure 3 the case exemplified.

[0087] In the individual package 30, the non-skin side of the sanitary napkin 1 is fixed to the packaging sheet 31 via the release sheet 33. The release sheet 33 covers the adhesive portion 8 of the main body portion of the sanitary napkin 1, enabling the sanitary napkin 1 to be easily peeled off when the individual package 30 is opened. In addition, as Figure 4 shown, the wing portion 1w is folded inward in the width direction on the skin side of the sanitary napkin 1. The adhesive portion 9 of the wing portion 1w is covered by the release sheet 34. In addition, the sanitary napkin 1 may not be fixed to the packaging sheet 31 via the release sheet 33, but may be directly fixed to the packaging sheet 31 in a peelable manner.

[0088] The packaging sheet 31 and the sanitary napkin 1 are folded at two folding portions F1, F2 along the width direction from Figure 4 the state. The two end portions in the width direction of the packaging sheet 31 folded together with the sanitary napkin 1 are joined to form a joint portion 35 as Figure 5 shown. As the joining method at the joint portion 35, known joining methods such as heat sealing, ultrasonic sealing, adhesive, and combinations of the above methods can be exemplified. In addition, a fixing band 32 is provided across the opening end of the packaging sheet 31. The user holds the fixing band 32 and unfolds the folding portions F1, F2 to open the individual package 30.

[0089] Above, the individual package 30 of the sanitary napkin has been described, but the structure of the individual package 30 is not limited to the above structure. For example, the number of folding portions F1, F2 of the packaging sheet 31 is not limited to two, and may be one, or may be three or more. In addition, it may be that not only the packaging sheet 31 and the sanitary napkin 1 are folded at the folding portions F1, F2 along the width direction, but also the packaging sheet 31 and the sanitary napkin 1 are folded at the folding portions along the length direction. In addition, the packaging sheet 31 and the sanitary napkin 1 may be folded independently. That is, the packaging sheet 31 may be folded while enclosing the pre-folded sanitary napkin 1.

[0090] <<Encapsulation body 40 of the sanitary napkin>>

[0091] Figure 6AIs a perspective view of the package 40 of the sanitary napkin Figure 6B Is a view showing the state where the storage body 41 is opened. The package 40 of the sanitary napkin (hereinafter also referred to as "package 40") has a plurality of independent packages 30 of sanitary napkins and a storage body 41 for storing the plurality of independent packages 30 of sanitary napkins. In addition, the storage body is not limited to the independent package for storing the absorbent article, and one or more absorbent articles not independently packaged such as disposable diapers can be directly stored.

[0092] Figure 6A The illustrated storage body 41 has an up-down direction, a left-right direction, and a front-back direction, and has a main body portion 42 having a rectangular parallelepiped shape and a sealing member 43. The sealing member 43 is provided on the back surface 41B of the package 40 (storage body 41). Specifically, the sealing member 43 is provided at the upper part of the rear side of the storage body 41. A pinch portion 431 is provided at the center portion in the left-right direction of the sealing member 43. In addition, a cut line 44 (for example, a tear line) is formed at the portion of the main body portion 42 covered by the sealing member 43. The user pinches the pinch portion 431 and pulls the sealing member 43, so that as Figure 6B shown, a part of the main body portion 42 is adhered to the sealing member 43 along the cut line 44 to open, and an opening portion 45 serving as an outlet for the sanitary napkin 1 is formed.

[0093] In addition, Figure 6A The shape and structure of the illustrated storage body 41 are an example and are not limited thereto. For example, it may be a storage body having a rectangular parallelepiped shape without a sealing member 43, a self-standing bag type, a flat bag, or the like.

[0094] <<Decorative film 50 for absorbent products>>

[0095] Figure 7 Is a front view of the package 40. Figure 8 Is a rear view of the package 40. Figures 9A - 9D Is a view for explaining the minimum width W52m of the adhesive layer 52. Figure 10 Is a view for explaining the average fiber diameter and the average fiber distance. Figure 11A 、 Figure 11B 、 Figure 12A And Figure 12B Is a view for explaining the decorative film 50. Figure 13 Is a view for explaining the separate adhesive layer 55.

[0096] In the storage body 41 (specifically, the main body portion 42) of the package 40 of the sanitary napkin in the present embodiment, a decorative film 50 for absorbent products with decoration applied is used. As Figure 11AAs shown in the figure, the decorative film 50 has: a film 51; an adhesive layer 52 provided on the surface of the film 51; and a decorative layer 53 provided on the adhesive layer 52 and having a maximum thickness of 10 μm or less. Examples of the decorative layer 53 include a metal foil, a holographic foil, a pigment foil, etc. (details will be described later).

[0097] The decorative layer 53 is provided at a position where a user's finger can touch and protrudes from the surface of the film 51 in the thickness direction of the film 51. That is, the decorative layer 53 protrudes with respect to the surface of the surrounding film 51 through the adhesive layer 52 formed so as to bulge on the surface of the film 51. Therefore, the decoration exhibited by the decorative layer 53 is visually recognized by the user or touched with a finger 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 decoration portion 54". As Figure 11A , Figure 11B , Figure 12A 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 decoration portion 54.

[0098] In the present embodiment, a three-dimensional decoration portion 54 (adhesive layer 52 + decorative layer 53) is provided on the outer side surface of the housing 41 of the package 40, and the three-dimensional decoration portion 54 protrudes toward the outside of the housing 41. A pattern d1 of a plurality of curves is exhibited through the three-dimensional decoration portion 54( Figure 7 ), or a pattern d2 of the outline of a flower and petals is exhibited( Figure 7 ), or a pattern d3 of the sanitary napkin 1 is exhibited( Figure 7 ).

[0099] In this way, even when the film 51 is decorated with a decorative layer 53 (such as a metal foil, a holographic foil, a pigment foil, etc.) having a thickness of 10 μm or less, a three-dimensional decoration (three-dimensional decoration portion 54) can be formed by providing the decorative layer 53 on the adhesive layer 52. A user who visually recognizes the three-dimensional decoration portion 54 provided on the housing 41 of the package 40 is likely to receive the impression of a three-dimensional product. Therefore, the user is also likely to have the impression that the sanitary napkin 1 stored in the housing 41 is a product that is three-dimensionally deformed and conforms to the body to prevent leakage.

[0100] Moreover, the minimum width W52m of the adhesive layer 52, the average fiber diameter (the diameter of one fiber) of the surface sheet 2 of the sanitary napkin 1, and the average fiber interval of the surface sheet 2 are set to be less than 0.4 mm. More preferably, the minimum width W52m of the adhesive layer 52 is preferably about 0.2 mm or less. In addition, the average fiber diameter and the average fiber interval of the surface sheet 2 are preferably about 0.05 mm to 0.15 mm.

[0101] The adhesive layer 52 refers to an adhesive layer 52 having a decorative layer 53 provided at least partially on its upper surface. As Figure 13 shown, a separate adhesive layer 55 (other adhesive layer) that does not overlap with the decorative layer 53 is not included in the adhesive layer 52 of the present invention. Additionally, for example, as Figure 11A shown, when the adhesive layer 52 extends relative to the decorative layer 53 and the predetermined direction in the figure is the width direction, the length of the adhesive layer 52 including its extended portion 52E is defined as the width W52 of the adhesive layer. When the minimum width W52m of the adhesive layer 52 is less than 0.4 mm, the minimum width of the decorative layer 53 overlapping therewith is also less than 0.4 mm. Therefore, a user who visually recognizes the three-dimensional decorative portion 54 with a narrow width (thin line) is likely to have the impression that the product has a delicate decoration applied thereto.

[0102] Furthermore, it is generally believed that the interval between fingerprints of a human finger is about 460 μm (±15 μm). It is generally believed that humans perceive the texture of an object's surface based on the relationship between the distance between fingerprints on the finger and the minute unevenness on the object's surface. Therefore, if the minimum width W52m of the adhesive layer 52 is less than 0.4 mm, i.e., less than the interval between fingerprints of a finger, when the user touches the three-dimensional decorative portion 54 (adhesive layer 52 and decorative layer 53), the adhesive layer 52 is likely to enter between the fingerprints of the finger. In this way, the user's tactile organ is stimulated, and the user can easily recognize, not only visually but also by touch, that the product has a three-dimensional and delicate decoration applied thereto. Moreover, the user is likely to have the impression that the sanitary napkin 1 stored in the storage body 41 is also a product that deforms softly and finely like the delicate three-dimensional decorative portion 54.

[0103] Moreover, the average fiber diameter and the average fiber interval of the surface sheet 2 of the sanitary napkin 1 are also less than 0.4 mm. Therefore, when the user touches the skin side of the surface sheet 2 when wearing the sanitary napkin 1, it is easy to feel the minute unevenness formed by the fibers and between the fibers of the surface sheet 2 between the fingerprints of the finger. Thus, the user can accurately feel that the actual sanitary napkin 1 is also formed of a soft sheet with fine fibers and deforms finely. In particular, the surface sheet 2 is the sheet located closest to the skin side at the position where it abuts against the excretory opening of the wearer (for example, the central portion in the length direction and width direction of the sanitary napkin 1). Therefore, the user can accurately feel that the skin feels soft and the wearing feeling is comfortable.

[0104] That is, compared with the case where the minimum width 52m of the adhesive layer 52, the average fiber diameter of the surface sheet 2, and the average distance between fibers of the surface sheet 2 are 0.4 mm or more, the decorative film 50 and the surface sheet 2 according to the present embodiment can give the user who visually recognizes or touches the three-dimensional decorative portion 54 (the adhesive layer 52 and the decorative layer 53) the impression that the sanitary napkin 1 is a product that deforms softly and delicately. In addition, the three-dimensional decorative portion 54 is visually recognized or touched by the user in a store where the display package 40 is displayed, a toilet where the package 40 is stored, or the like. Thus, the user who visually recognizes or touches the above-mentioned three-dimensional decorative portion 54 before using the sanitary napkin 1 can use the sanitary napkin 1 with confidence.

[0105] The type of decoration exhibited by the three-dimensional decorative portion 54 is not particularly limited, and examples thereof include characters, numbers, marks (such as musical note marks, signs, etc.), figures (such as circles, polygons, hearts, stars, etc.), patterns (such as pictures representing the shapes of items, animals, plants, people, etc.), geometric patterns, colors (portions having a predetermined color difference from the color of the film 51), or decorations formed by combining the above-mentioned decorations. Figure 7 The three-dimensional decorative portion 54 shown is an example, and the shape, number, size, and arrangement of the three-dimensional decorative portion 54 are not particularly limited.

[0106] The adhesive layer 52 is a layer formed of a raw material that maintains a raised state on the surface of the film 51 and has adhesiveness for bonding the film 51 and the decorative layer 53. As the raw material for forming the adhesive layer 52, an example is a colorless and transparent ultraviolet curable adhesive. However, it is not limited thereto, and for example, other photocurable adhesives or the like may also be used.

[0107] In addition, ultraviolet rays are irradiated onto the adhesive layer 52 that is an ultraviolet curable adhesive, and the decorative layer 53 is bonded to the adhesive layer 52 by using the adhesiveness of the locally cured adhesive layer 52. As the cross-sectional shape of the three-dimensional decorative portion 54, examples include Figure 11A , Figure 11B , Figure 12A and Figure 12B the shapes shown. The illustrated three-dimensional decorative portion 54 has a length in a predetermined direction. However, the cross-sectional shape of the three-dimensional decorative portion 54 is not limited to the illustrated shape.

[0108] In addition, the manufacturing method of the decorative film 50 (three-dimensional decoration part 54) will be described later. In order to form an adhesive layer 52 with a smaller width (thinner line), an inkjet device is used in the present embodiment. By ejecting an ultraviolet curable adhesive from the inkjet device toward the film 51, an adhesive layer 52 with a smaller width can be formed. In order to eject from the nozzle, the viscosity of the ultraviolet curable adhesive needs to be relatively low. On the other hand, the adhesive layer 52 needs to bulge on the substrate. Therefore, in order to prevent the adhesive layer 52 from easily penetrating into the substrate, the film 51 is used as the substrate, and the three-dimensional decoration part 54 is formed on the film 51.

[0109] The thickness of the decorative layer 53 is the length in the direction orthogonal to the surface of the decorative layer 53 (for example Figure 11A 53t). Regarding its maximum thickness (10 μm or less), it can be confirmed by a known method. For example, the part of the decorative film 50 (here, the storage body 41) where the three-dimensional decoration part 54 is formed is determined, and this part is cut at multiple arbitrary locations to form a plurality of samples. Then, an optical microscope (such as VHX-900F manufactured by Keyence Corporation, etc.) is used to magnify and photograph the cut surface of each sample. For each photographed cut surface image, 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 that it is 10 μm or less.

[0110] The width of the adhesive layer 52 is as follows. For example, in the case where the adhesive layer 52 (three-dimensional decoration part 54) extends linearly like the pattern d1 of the curve shown in Figure 7 and Figure 9A , or in the case where the adhesive layer 52 (three-dimensional decoration part 54) forms the contour of a pattern (example: sanitary napkin) as shown in Figure 9B , the direction orthogonal to the extending direction of the adhesive layer 52 is set as the width direction. In addition, in the case where the pattern represented by the three-dimensional decoration part 54 has a linear part (example: the part of the cotton stem) as shown in Figure 9C , the direction orthogonal to the extending direction of this linear part is set as the width direction. In addition, in the case where the pattern (example: heart) represented by the three-dimensional decoration part 54 does not have a linear part as shown in Figure 9D , the short side direction of the rectangular shape circumscribing the three-dimensional decoration part 54 in a top view is set as the width direction. The length of the adhesive layer 52 in the above width direction is set as the width W52. In addition, in the case where the adhesive layer 52 (three-dimensional decoration part 54) is a character or a number, the thickness of the line forming the character, etc. is set as the width W52 of the adhesive layer 52. Then, the minimum width W52m of the adhesive layer 52 is determined from one or more three-dimensional decoration parts 54 included in the decorative film 50. In addition, the predetermined direction in this specification (refer to Figure 11AThe like) can be either the width direction of the adhesive layer 52 or the direction intersecting the width direction.

[0111] Regarding the average fiber diameter and the average fiber distance of the surface sheet 2, they can be measured by a known method. For example, a sheet obtained by cutting out the surface sheet 2 from the sanitary napkin 1 in a quadrilateral shape (about 10 mm × 10 mm in size) is used as a sample. At this time, a sheet obtained by cutting out under the condition of freezing the sanitary napkin 1 with liquid nitrogen or the like so as not to easily cause a change in the fiber diameter is used as a sample. Regarding the cross-section of the sample (the cross-section obtained by cutting the surface sheet 2 along the thickness direction), a digital microscope (for example, VHX-7000 manufactured by Keyence Corporation or an equivalent instrument) is used to obtain a magnified image. Observing the magnified image, any multiple (for example, 100) fibers 2f are selected, and the diameter of each fiber 2f is measured (refer to: Figure 10 the fiber diameter D1). The average value of the fiber diameters D1 of each fiber 2f is defined as the average fiber diameter. In addition, in the case of a hollow fiber, the outermost dimension is defined as the diameter, and in the case of a flat fiber, the average value of the average fiber width and the average fiber thickness is defined as the diameter.

[0112] In addition, the outside of the fiber 2f is extracted from the above-mentioned magnified image obtained by the digital microscope to determine the fiber space. As Figure 10 shown, the diameter of the largest inscribed circle of the determined fiber space is defined as the fiber space distance. Any multiple (for example, 100) fiber spaces are selected, and the diameter D2 of the largest inscribed circle of each fiber space is measured. The average value of the fiber space distances (D2) of each fiber space is defined as the average fiber distance.

[0113] In addition, the three-dimensional decorative part 54 can be provided at any position on the outer side surface of the housing body 41 of the package body 40. Preferably, as Figure 7 shown, it is preferable that the three-dimensional decorative part 54 is provided on the front surface (front face) 41F of the housing body 41 of the package body 40. In this way, in a store or the like, it is easy for the user to visually recognize the three-dimensional decorative part 54. In addition, the front face of the housing body 41 refers to the largest face among the multiple faces that the housing body 41 has, the face on which the sales name (brand name), the storage quantity, etc. are greatly recorded, etc.

[0114] In addition, preferably, in the case of the package 40 having the sealing member 43, the sealing member 43 is provided on the back surface 41B of the accommodating body 41 of the package 40, and the three-dimensional decorative portion 54 is not provided on the back surface 41B of the accommodating body 41. When opening the sealing member 43, the user holds the back surface 41B of the accommodating body 41, or the pulling force of the sealing member 43 acts on the back surface 41B of the accommodating body 41. Therefore, by not providing the three-dimensional decorative portion 54 on the back surface 41B (the opening surface) of the accommodating body 41, it is possible to prevent the three-dimensional decorative portion 54 from falling off and adhering to the user or the sanitary napkin 1 when opening.

[0115] In addition, it may be that instead of providing the three-dimensional decorative portion 54 on the package 40, the three-dimensional decorative portion 54 is provided on the sanitary napkin 1 or the individual package 30 of the sanitary napkin. Alternatively, in addition to providing the three-dimensional decorative portion 54 on the package 40, the three-dimensional decorative portion 54 is also provided on the sanitary napkin 1 or the individual package 30 of the sanitary napkin. That is, the decorative film 50 may be used for at least any one of the sanitary napkin 1, the individual package 30 of the sanitary napkin, and the package 40 of the sanitary napkin.

[0116] In the case of the individual package 30, the decorative film 50 can be used for the packaging sheet 31, the peeling sheets 33, 34, etc. Specifically, Figure 5 the pattern d4 on the outer side surface of the packaging sheet 31 shown, Figure 4 the pattern d5 on the peeling sheet 34 shown can be set as the three-dimensional decorative portion 54. In this way, when the user takes out the individual package 30 from the package 40 and opens the individual package 30, the three-dimensional decorative portion 54 can be visually recognized or touched.

[0117] In the case of the sanitary napkin 1, the decorative film 50 can be used for the bottom sheet 4, etc. Specifically, Figure 3 the pattern d6 on the non-skin side surface of the bottom sheet 4 shown can be set as the three-dimensional decorative portion 54. In this way, when the user takes out the sanitary napkin from the individual package 30 and wears it on the underwear, the three-dimensional decorative portion 54 can be visually recognized or touched.

[0118] In the above cases, the user can also visually recognize or touch the three-dimensional decorative portion 54 with a relatively narrow width (thin line) before using the sanitary napkin 1. As a result, the user is likely to have the impression that the sanitary napkin 1 is also a product that deforms softly and delicately, and can use it with confidence.

[0119] In addition, preferably, the decorative layer 53 is a layer formed of any one of a metal foil, a holographic foil, and a pigment foil. In this way, the aesthetic property of the three-dimensional decorative portion 54 can be improved. Specifically, the three-dimensional decorative portion 54 formed of a metal foil or a holographic foil is presented in a color with a metallic luster such as gold or silver, and is easily noticeable. As a result, the user is likely to focus on the shiny three-dimensional decorative portion 54 and visually recognize or touch it, and is likely to have an impression that the sanitary napkin 1 is also deformed three-dimensionally or deformed softly and delicately. In addition, through the three-dimensional decorative portion 54 with a metallic luster, the user is also likely to receive an impression that it is a high-class product. Therefore, the user is likely to have an impression that the sanitary napkin 1 stored in the storage body 41 is also a high-quality product (for example, not easily leaking, comfortable to wear, etc.), and can use the sanitary napkin 1 with confidence. On the other hand, the three-dimensional decorative portion 54 formed of a pigment foil becomes a matte decoration with dulling, and can give the user an impression that it is a product with a stable sense of security. In addition, since there is no metallic luster, the user is likely to have a sense of security that no foreign substances such as metal are mixed in the stored sanitary napkin 1.

[0120] Examples of the metal foil include a metal foil obtained by hammering a metal to thinly and flatly extend it, a thin and flat sheet containing a metal (a coating film of a metal powder pigment, a metal vapor deposition film), and a sheet obtained by laminating a synthetic resin layer on the above member. Examples of the metal contained in the metal foil include gold, silver, copper, tin, brass, aluminum, and the like.

[0121] The holographic foil refers to a thin and flat sheet having a property of reflecting incident light as a color by using a prism effect. By providing a fine concavo-convex pattern on the surface, a specific pattern can be visually recognized by a person who sees the reflected light.

[0122] Examples of the pigment foil include a sheet formed by laminating a coating film of a pigment on a synthetic resin layer. Examples of the color of the pigment include red, blue, yellow, black, white, etc., and there is no particular limitation. In addition, the decorative layer 53 may also be a foil material other than a metal foil, a holographic foil, and a pigment foil.

[0123] In addition, preferably, the maximum thickness of the adhesive layer 52 is larger 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.

[0124] In this way, the decorative layer 53 with a relatively small thickness can protrude further from the surface of the surrounding film 51. Therefore, it is easy for the user to recognize the case where a three-dimensional decoration is provided. In addition, the adhesive layer 52 is formed of an adhesive raw material and has elasticity. The thickness of the adhesive layer 52 is relatively large, so that the elasticity of the adhesive layer 52 increases. Therefore, when the user touches the three-dimensional decoration portion 54, the finger is easily pushed back, and it is easy to feel the touch of the three-dimensional decoration portion 54. In particular, when the user touches the three-dimensional decoration portion 54 with a small width, it is easy to recognize tactually the case where a delicate decoration is applied. On the other hand, the thickness of the decorative layer 53 is relatively small, so that when an external force is applied, the decorative layer 53 is easily deformed following the adhesive layer 52, and peeling of the two layers can be suppressed.

[0125] In addition, the maximum thickness of the adhesive layer 52 and the maximum thickness of the decorative layer 53 are determined from among one or more three-dimensional decoration portions 54 provided on the decorative film 50. As described above, the thickness (for example Figure 11A 53t of) the decorative layer 53 is set to the length in the direction orthogonal to the surface of the decorative layer 53. The thickness (for example Figure 11A t2 of) the adhesive layer 52 is set to the length in the thickness direction of the film 51. The thickness of the adhesive layer 52 can be measured in the same manner as the thickness of the decorative layer 53 by magnifying and observing a cross-section of the three-dimensional decoration portion 54 using an optical microscope or the like.

[0126] In addition, preferably, the maximum thickness t3 (see Figure 11A etc.) of the three-dimensional decoration portion 54 at the portion where the decorative layer 53 and the adhesive layer 52 overlap and the average fiber diameter of the surface sheet 2 are less than 50 μm (less than 0.05 mm).

[0127] In addition, the maximum thickness thereof is determined from among one or more three-dimensional decoration portions 54 provided on the decorative film 50. The thickness of the three-dimensional decoration portion 54 can be measured in the same manner as the thickness of the decorative layer 53 by magnifying and observing a cross-section of the three-dimensional decoration portion 54 using an optical microscope or the like. The method for measuring the average fiber diameter of the surface sheet 2 is as described above.

[0128] It is generally considered that the depth of the fingerprints of human fingers is less than 50 μm. Therefore, when the user touches the three-dimensional decorative part 54 with a small width, most of it easily enters between the fingerprints of the fingers. Thus, compared with the case where the maximum thickness t3 of the three-dimensional decorative part 54 is 50 μm or more, the user is more likely to tactilely recognize the situation where delicate decoration is applied. Similarly, when the user touches the surface sheet 2, most of the fibers of the surface sheet 2 easily enter between the fingerprints of the fingers. Thus, compared with the case where the average fiber diameter of the surface sheet 2 is 50 μm or more, the user can accurately feel that the actual sanitary napkin 1 is also formed of a soft sheet with fine fibers and deforms delicately. In addition, by moderately suppressing the thickness of the three-dimensional decorative part 54, peeling of the three-dimensional decorative part 54 caused by snagging can be suppressed.

[0129] In addition, as Figure 7 and Figure 13 shown, it may also be that the decorative film 50 has a separate adhesive layer 55 (other adhesive layer) independent of the three-dimensional decorative part 54, and the separate adhesive layer 55 protrudes from the surface of the film 51 and does not overlap with the decorative layer 53. When the adhesive is colorless and transparent, the visual recognition of the separate adhesive layer 55 is lower than that of the three-dimensional decorative part 54, but the user can appreciate the concave-convex decoration as a different appearance. In addition, when forming information about the product (such as product name, size, function, etc.) using the separate adhesive layer 55, even in a relatively dark place such as a bathroom or for a person with low vision, the user can obtain the product information by touching the separate adhesive layer 55.

[0130] In this case, it is preferable that the minimum width W55m of the separate adhesive layer 55 is less than 0.4 mm. The definition of the width W55 of the separate adhesive layer 55 is the same as the definition of the width W52 of the adhesive layer 52 described above. For example, as Figure 7 shown, when the separate adhesive layer 55 is a letter (abc), the direction orthogonal to the direction in which the line forming the letter extends is set as the width direction, and the minimum width W55m is determined.

[0131] In this way, compared with the case where the minimum width W55m of the separate adhesive layer 55 is 0.4 mm or more, the separate adhesive layer 55 easily enters between the fingerprints of the fingers. Thus, the user is more likely to tactilely recognize the situation where delicate decoration is applied and is more likely to have the impression that the sanitary napkin 1 is also a soft and delicately deforming product. In addition, in the separate adhesive layer 55 with an adhesive surface and the three-dimensional decorative part 54 with a decorative layer 53 surface, the touch (friction feeling) is different. Therefore, while the user appreciates the difference in touch, due to the application of decorations of different materials, it is easy to receive the impression that the product is carefully manufactured.

[0132] In addition, as Figure 2As shown, the sanitary napkin 1 has a pair of side sheets 6 arranged along the length direction at both ends in the width direction on the skin side of the surface sheet 2. In this case, it is preferable that the dynamic friction coefficient of the skin side of the surface sheet 2 is different from the dynamic friction coefficient of the skin side of the side sheet 6.

[0133] In this way, when the user touches the surface of the sanitary napkin 1, the user can recognize the situation where the surface sheet 2 and the side sheet 6 with different tactile sensations (friction sensations) are provided. Therefore, the user can exactly feel that the actual sanitary napkin 1 is also a well-manufactured product with excellent performance that uses different materials according to the purpose, just like the decoration of the decorative film 50.

[0134] Regarding the method for measuring the dynamic friction coefficient, it can be carried out by a known method. For example, it can be carried out by the following method. First, the surface sheet 2 and the side sheet 6 to be measured are cut out from the sanitary napkin 1 respectively in a predetermined size (example: the length in the length direction is about 30 mm × the length in the width direction is 30 mm) as samples. In addition, when separating the sheet to be measured using toluene or the like, the sample is made after drying it. Next, for each sample, the frictional force is measured using the frictional force detection function of an automated surface tester (KES FB4-AUTO-A manufactured by Kato Tech Co., Ltd. or an equivalent instrument). As the measurement conditions, the contact area of the friction contact head is set to 5 mm × 5 mm (0.25 cm 2 ), and the load W including the weight of the friction contact head is set to 50 gf (about 0.5 N) in the vertical direction. Then, a tension of 400 g is applied to the 30 mm sample width, and the sample is placed on the automated surface tester in such a way that the object surface (the skin side of each sheet) contacts the above friction contact head. The friction contact head is brought into contact with the sample with the load W, the moving speed of the friction contact head is set to 1 mm / sec, the frictional force F is measured, and the dynamic friction coefficient is calculated. Then, it is confirmed that the dynamic friction coefficients of each sample are different. Preferably, multiple samples are prepared for each object sheet, and the average value of the dynamic friction coefficient is obtained and compared.

[0135] In addition, it may be that the decorative film 50 has a plurality of three-dimensional decorative portions 54. That is, it may be that the decorative film 50 has a third adhesive layer 523 ( Figure 11A ) and a fourth adhesive layer 524 ( Figure 11B ). In this case, it may be that the maximum thickness t2 of the third adhesive layer 523 is different from the maximum thickness t4 of the fourth adhesive layer 524. The third adhesive layer 523 and the fourth adhesive layer 524 are adhesive layers 52 having a decorative layer 53 provided at least partially on their upper surfaces. In addition, the comparison of the maximum thickness t2 of the third adhesive layer 523 and the maximum thickness t4 of the fourth adhesive layer 524 can be carried out by magnifying and observing the cross section of each three-dimensional decorative portion 54 using an optical microscope or the like.

[0136] In the above case, the user can appreciate the three-dimensional decorative parts 54 of different thicknesses. In addition, the user is easily impressed by the fact that the product is carefully manufactured and provided with the three-dimensional decorative parts 54 of different thicknesses. The third adhesive layer 523 and the fourth adhesive layer 524 can be formed, for example, by making the amount of adhesive (here, ultraviolet curing adhesive) sprayed toward the film 51 different or by making the number of times of spraying the adhesive different.

[0137] Furthermore, it is preferred that the average thickness of the top sheet 2 of the sanitary napkin 1 is different from the average thickness of the side sheets 6. Thus, when the user touches the top sheet 2 and the side sheets 6 of the sanitary napkin 1, the user can recognize that sheets of different thicknesses are provided. Therefore, the user can definitely feel that the actual sanitary napkin 1 is also a product with good performance that is carefully manufactured using materials of different thicknesses according to the purpose, just like the decoration of the decorative film 50.

[0138] In addition, the average thickness of the surface sheet 2 and the side sheet 6 can be measured by a known method. For example, the object sheet is separated from the sanitary napkin 1 and cut out at any number of locations with a predetermined size. A plurality of samples are formed for each sheet. Then, a measuring machine (e.g., PEACOCK DIAL THICKNESS GAUGE model T06795 or an instrument equivalent thereto) is used to measure the thickness of each sample. The load during the measurement is set to 3 g / cm 2 By calculating the average value of the thickness of each sample for each sheet, the average thickness of the top sheet 2 and the side sheet 6 can be compared.

[0139] In addition, it is preferable that the portion of the film 51 having the three-dimensional decorative portion 54 (the decorative layer 53 and the adhesive layer 52) has better bending properties and higher rigidity than the portion of the film 51 not provided with an adhesive (here, an ultraviolet curing adhesive) forming the adhesive layer 52. Specifically, the portion of the film 51 not provided with an adhesive refers to a portion of the film 51 that does not have the three-dimensional decorative portion 54 or the single adhesive layer 55.

[0140] The bendability refers to the ratio of the bend recovery (2HB) to the rigidity (B) in the bending characteristics obtained by the bending tester (KES-FB2) made by Kado Technology, that is, the value of 2HB / B. The bend recovery 2HB is the difference between the bending moment in the deformation process and the recovery process of the film. If the bendability (2HB / B) value is low (small), it can be judged that the bendability is good.

[0141] As described above, the better bendability of the portion of the film 51 having the three-dimensional decorative portion 54 preferably means that the three-dimensional decorative portion 54 has higher elasticity. In addition, the higher rigidity of the portion of the film 51 having the three-dimensional decorative portion 54 means that the three-dimensional decorative portion 54 has hardness. Thus, when the user touches the three-dimensional decorative portion 54, the finger is easily pushed back and the shape of the three-dimensional decorative portion 54 is easily maintained. Therefore, the user can easily feel the touch of the three-dimensional decorative portion 54. In particular, when the user touches the three-dimensional decorative portion 54 with a small width, it is easy to tactilely recognize the application of delicate decoration.

[0142] The specific measurement methods for the bendability (2HB / B) and the rigidity (B) are as follows. First, a sample is made by cutting out the portion provided with the three-dimensional decorative portion 54 from the decorative film 50 in a predetermined size. For example, the length in the measurement direction is set to 110 mm (ensuring 5 mm for each of the portions clamped by the chucks up and down), and the length in the direction orthogonal to the measurement direction is set to 100 mm. Similarly, a sample of the portion of the decorative film 50 where the three-dimensional decorative portion 54 and the separate adhesive layer 55 are not provided is made. In addition, when the decorative film 51 is used for the storage body 41 ( Figure 6A ), the up-down direction and the left-right direction are respectively set as the measurement directions, and when the decorative film 51 is used for the individual package 30 or the sanitary napkin 1, the length direction and the width direction are respectively set as the measurement directions. Samples are made for each of the two measurement directions.

[0143] Next, using KES-FB2 manufactured by Kato Tech Co., Ltd., the sample is fixed between the chucks and bent to the maximum curvature of +2.5 cm on the front side -1 , and then, bent to the maximum curvature of -2.5 cm on the back side -1 , and then restored. The bending rigidity B [gf·cm 2 / cm] is calculated based on the slope when the slope of the bending moment with respect to the curvature becomes substantially constant when starting to bend to the front side. The bending recovery 2HB [gf·cm / cm] is obtained based on its hysteresis amplitude.

[0144] Next, for each sample, the average value of the rigidity B in the two directions and the average value of the bending recovery 2HB in the two directions are calculated. Then, it is confirmed that the average value of the rigidity B of the film 51 having the three-dimensional decorative portion 54 is larger (the rigidity B is higher). In addition, the bendability 2HB / B is calculated by dividing the average value of the bending recovery 2HB by the average value of the rigidity B. It is confirmed that the average value of the bendability 2HB / B of the film 51 having the three-dimensional decorative portion 54 is smaller (the bendability is better).

[0145] In addition, preferably, as Figures 11A - 12B shown, the three-dimensional decorative portion 54 (the portion where the decorative layer 53 and the adhesive layer 52 overlap) has portions with different thicknesses. For example, in Figure 11AIn the three-dimensional decorative portion 54, the central portion in the predetermined direction is recessed and the thickness becomes thinner. In Figure 12A the three-dimensional decorative portion 54, the thickness of the end portion in the predetermined direction is thinner than the thickness of the adjacent portion.

[0146] In this way, it is easier to visually recognize the three-dimensional decorative portion 54 three-dimensionally. Thus, the user who visually recognizes the three-dimensional decorative portion 54 is likely to have the impression that the sanitary napkin 1 is also deformed three-dimensionally and fits. In addition, the appearance of the three-dimensional decorative portion 54 changes according to the angle. Therefore, the user is likely to have the impression that the sanitary napkin 1 is not deformed uniformly but deforms along the body and follows the movement of the body.

[0147] Moreover, according to the portion where the thickness of the three-dimensional decorative portion 54 changes, the touch changes, and the user can easily recognize the three-dimensional decorative portion 54. In addition, the width of the corner portion where the thickness of the three-dimensional decorative portion 54 changes is smaller than the minimum width W52m of the adhesive layer 52, and it is easy to enter between the fingerprints of the fingers. Thus, the user can easily recognize the situation where a three-dimensional and delicate decoration is applied both visually and tactilely, and is likely to have the impression that the sanitary napkin 1 is also a product that deforms softly and delicately.

[0148] Moreover, preferably, as Figures 11A - 12B 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 and on the inner side in the predetermined direction.

[0149] In this way, the three-dimensional decorative portion 54 bulges from the end portion 54E toward the inner portion 54I in the predetermined direction and is visually recognized, and it is easier to visually recognize the three-dimensional decorative portion 54 three-dimensionally. In addition, the three-dimensional decorative portion 54 easily enters between the fingerprints of the fingers from its end portion 54E with a thinner thickness. Thus, the user can easily recognize the situation where a delicate decoration is applied tactilely, and is likely to have the impression that the sanitary napkin 1 is also a product that deforms softly and delicately.

[0150] In addition, it may be that, as Figure 11A 、 Figure 12B shown, in the three-dimensional decorative portion 54, the central portion 54C in the predetermined direction (toward the film 51 side in the thickness direction) is recessed. In this way, the surface of the three-dimensional decorative portion 54 becomes an uneven shape, and it is easier to visually recognize the three-dimensional decorative portion 54 three-dimensionally. In addition, the minute convex portions (corner portions where the thickness changes) easily enter between the fingerprints of the fingers. Thus, the user can easily recognize the situation where a delicate decoration is applied tactilely.

[0151] However, it is not limited to the above situation, and it may be that, as Figure 12A shown, the thickness of the portion of the three-dimensional decorative portion 54 other than the end portion in the predetermined direction is constant, or it may be that the central portion in the predetermined direction of the three-dimensional decorative portion 54 bulges convexly and has a larger thickness.

[0152] Alternatively, it may be, as Figure 11A and Figure 12A shown, the adhesive layer 52 has a protruding portion 52E that protrudes from one side of the decorative layer 53 in a predetermined direction. The adhesive layer 52 may protrude from both sides in the predetermined direction as shown in the figure, or may protrude only from one side in the predetermined direction. When an external force acts on the decorative film 50 (here, the storage body 41), the force is likely to be applied to the protruding portion 52E that is the end of the adhesive layer 52. However, since the adhesive layer 52 is formed of a raw material having adhesiveness and has elasticity, it is likely to deform following the film 51. Therefore, the situation where the adhesive layer 52 peels off from the film 51 can be suppressed. In particular, if the thickness of the protruding portion 52E is small, the protruding portion 52 is more likely to deform following the film 51. For example, the maximum thickness t1 of the protruding portion 52E can be made smaller than the maximum thickness t2 of the portion of the adhesive layer 52 that overlaps with the decorative layer 53 (t1 < t2). In addition, the decorative layer 53 is not located at the end where the force is likely to be applied, thereby suppressing the peeling of the adhesive layer 52 and the decorative layer 53 and the cracking of the decorative layer 53. A user who visually recognizes the three-dimensional decorative portion 54 maintaining its quality is likely to have the impression that the sanitary napkin 1 is also a high-quality product.

[0153] However, it is not limited to the above situation, and it may also be, as Figure 12B shown, the adhesive layer 52 does not have the protruding portion 52E. That is, it may also be that the entire surface area of the adhesive layer 52 is covered by the decorative layer 53.

[0154] In addition, preferably, the length of the protruding portion 52E in the predetermined direction is not too long. For example, preferably, the length L1 of the protruding portion 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).

[0155] In this way, the aesthetic property (such as a metallic luster) generated by the decorative layer 53 can be ensured. In addition, the width of the adhesive layer 52 can be reduced, and the adhesive layer 52 can easily enter between the fingerprints of a finger. As a result, it is easy for the user to tactilely recognize the situation where delicate decoration is applied.

[0156] In addition, the comparison of the thickness and length of each part around the three-dimensional decorative portion 54 can be performed by a known method. For example, it can be compared by visually observing the object portion, or it can be compared based on an image obtained by magnifying the object portion using an optical microscope and taking a picture. In addition, it can also be compared according to a cross-sectional image obtained by cutting the object portion.

[0157] Alternatively, it may be, as Figure 9AAs shown, the decorative film 50 has a first adhesive layer 521 with a minimum width of less than 0.4 mm and a second adhesive layer 522 adjacent to the first adhesive layer 521. In this case, preferably, in the width direction of the first adhesive layer 521, the minimum interval (interval between outer edges) P52 between the first adhesive layer 521 and the second adhesive layer 522 is 0.47 mm or more. The first adhesive layer 521 and the second adhesive layer 522 are adhesive layers 52 with a decorative layer 53 provided at least partially on their upper surfaces.

[0158] As described above, it is generally considered that the interval of fingerprints of human fingers is about 460 μm. Therefore, in the above case, the minimum width of the first adhesive layer 521 is narrower than the interval of fingerprints of fingers. On the other hand, the interval P52 between the first adhesive layer 521 and the second adhesive layer 522 is wider than the interval of fingerprints of fingers. Therefore, the first adhesive layer 521 is likely to enter between the fingerprints of fingers alone. In addition, if the interval between the first adhesive layer 521 and the second adhesive layer 522 is wide, the decorative layer 53 overlapping with the first adhesive layer 521 is visually recognized as a separate decoration with a narrow width. Thus, the user can easily recognize visually and tactilely the situation where delicate decoration is applied, and is likely to have the impression that the sanitary napkin 1 is also a product that deforms softly and delicately.

[0159] Moreover, preferably, the value (S1 / S2) obtained by dividing the total area S1 of one or more decorative layers 53 of the decorative film 50 by the planar area S2 of the film 51 is 0.8% or more and less than 6.8%. In addition, in the case where a three-dimensional storage body 41 is formed as shown in a piece of decorative film 50 Figure 6A as shown, comparison is made in the state when observing the decorative film 50 from one direction. For example, the planar area of the film 51 visually recognized in the front-rear direction as shown in Figure 7 is set as S2 for the package 40 (storage body 41). In addition, the total area of one or more decorative layers 53 (three-dimensional decorative portions 54) provided on the front surface 41F of the decorative film 50 is set as S1.

[0160] In addition, in the package 40 of the present embodiment, a decorative layer 53 is provided on the front surface 41F of the storage body 41 where the sealing member 43 is not provided. In this case, the area of the front surface 41F of the storage body 41 is set as the planar area S2 of the film 51. In the case where the decorative layer 53 is provided on the back surface 41B of the storage body 41 where the sealing member 43 is provided, the entire area of the back surface 41B of the storage body 41 including the area covered by the sealing member 43 of the film 51 is set as the planar area S2 of the film 41.

[0161] According to the above, compared with the case where the ratio of the area S1 of the decorative layer 53 to the planar area S2 of the film 51 is less than 0.8%, the three-dimensional decorative portion 54 is more easily recognizable by the user. In addition, the probability that the user touches the three-dimensional decorative portion 54 (adhesive layer 52) increases. Further, according to the above, compared with the case where the ratio of the area S1 of the decorative layer 53 to the planar area S2 of the film 51 is 6.8% or more, it is easier to ensure the interval of the adhesive layer 52. Thus, the single adhesive layer 52 easily gets into the fingerprints of the fingers. In addition, the decorative layer 53 of the adhesive layer 52 with a smaller covering width is easily visually recognized as a single decoration with a smaller width. Thus, the user can easily recognize the case where delicate decoration is applied. In addition, the ratio of the decorative layer 53 to the film 51 is not too high, so that it is possible to suppress the reduction of the effect produced by the three-dimensional decorative portion 54 (for example, the high-class feeling produced by the local decoration having a metallic luster).

[0162] In addition, Figure 2 The sanitary napkin 1 exemplified has an absorbent core 11 containing a superabsorbent polymer 111. That is, the absorbent core 11 is formed by adding a superabsorbent polymer 111 to liquid-absorbent fibers such as pulp fibers and shaping them into a predetermined shape. In this case, it is preferable that the minimum width W52m of the adhesive layer 52 is smaller than the maximum particle diameter of the superabsorbent polymer 111 before absorbing liquid. More preferably, it is preferable that the minimum width W52m of the adhesive layer 52 is smaller than the average particle diameter of the superabsorbent polymer 111 before absorbing liquid.

[0163] A user who visually recognizes or touches the adhesive layer 52 having a width smaller than the maximum particle diameter and the average particle diameter of the superabsorbent polymer 111 can easily recognize the case where delicate decoration is applied. Thus, it is easy to give the impression that the sanitary napkin 1 is also a product that deforms softly and delicately. In addition, a user holding the sanitary napkin 1 can feel the superabsorbent polymer 111 through the topsheet 2 and the backsheet 4. In particular, if the maximum particle diameter and the average particle diameter of the superabsorbent polymer are larger than the minimum width W52m of the adhesive layer 52, the user can easily feel the presence and size of the superabsorbent polymer 111. Thus, the user can get the impression that the superabsorbent polymer 111 reliably absorbs excreted liquid and is not easily leaked.

[0164] The average particle diameter and the maximum particle diameter of the superabsorbent polymer 111 can be measured by a known method. Preferably, the following measurement can be performed on a plurality of sanitary napkins 1, and the average value of the average particle diameter or the maximum particle diameter obtained in each of the multiple measurements (for example, N = 5 times) can be obtained and compared.

[0165] (1) In a thermo-hygrostat chamber at a temperature of 20 ± 5°C and a humidity of 65 ± 5% RH, prepare a digital microscope manufactured by Keyence Corporation (trade name: VHX-1000, zoom lens: ×20 to ×200 or an equivalent lens) and the attached software.

[0166] (2) Leave multiple superabsorbent polymers 111 taken out from the target sanitary napkin 1 in the above thermo-hygrostat chamber for 24 hours.

[0167] (3) Take pictures of the superabsorbent polymers 111 using the above digital microscope.

[0168] (4) The particle size of each superabsorbent polymer 111 refers to the equivalent circular diameter calculated based on the projected area of the projected image of each superabsorbent polymer 111. Specifically, measure the projected area A of each superabsorbent polymer 111 using the attached software, and calculate the equivalent circular diameter CD (diameter) of each superabsorbent polymer 111 (CD = 2 × (A / π) 1 / 2 ).

[0169] (5) The average particle size of the superabsorbent polymers 111 refers to the median particle size in the particle size distribution (based on the number). Specifically, use the attached software to create a particle size distribution (based on the number) of the equivalent circular diameters CD of 1000 superabsorbent polymers, determine the median particle size according to this particle size distribution (based on the number), and set it as the average particle size. In addition, set the maximum value among the equivalent circular diameters CD of 1000 superabsorbent polymers calculated using the attached software as the maximum particle size.

[0170] However, the excretion amount of the wearer of the sanitary napkin 1 is less than that of the wearers of disposable diapers and urine pads. Therefore, the absorbent core 11 may not contain the superabsorbent polymers 111.

[0171] In addition, it may be that the decorative film 50 not only has the three-dimensional decorative part 54, but also has a flat printed layer 60 provided on the surface of the film 51, that is, a normal printed layer 60 printed with ink. In this case, it may be that the three-dimensional decorative part 54 (adhesive layer 52 and decorative layer 53) is provided above the partial printed layer 60. For example, in Figure 7 , the three-dimensional decorative part 54 with the same curve pattern d1 is provided overlapping above the printed layer 60 as the multiple curve patterns p1. In addition, the three-dimensional decorative part 54 with the pattern d2 of the petals is provided overlapping above the printed layer 60 representing the color p2 of the flower.

[0172] In this way, the local bulge of the decoration presented by the printing layer 60 can be visually recognized, and the user can further appreciate the decoration. In addition, when the local part of the decoration is the three-dimensional decoration part 54, the three-dimensional decoration part 54 is more likely to be conspicuous than when all the decorations are the three-dimensional decoration part 54. Thus, it is easy for the user who visually recognizes or touches the three-dimensional decoration part 54 with a small width to recognize the case where a three-dimensional and delicate decoration is applied. In addition, the printing layer 60 is covered by the three-dimensional decoration part 54, so that the printing layer 60 is not easily peeled off. Conversely, even if the three-dimensional decoration part 54 is peeled off from the film 51, the printing layer 60 can be visually recognized. Thus, it is possible to suppress a decrease in the appearance quality of the decorative film 50 and ensure a high-quality impression of the sanitary napkin 1 for the user.

[0173] === Manufacturing method of the decorative film 50 ===

[0174] Figure 14 This is a diagram for explaining the manufacturing method of the decorative film 50. The aforementioned decorative film 50 can be manufactured using Figure 14 the manufacturing apparatus 70 illustrated. The manufacturing apparatus 70 includes a conveyance mechanism 71, an ink ejection device 72, an adhesive ejection device 73, a first irradiation device 74, a decorative layer conveyance mechanism 75, and a second irradiation device 76.

[0175] The conveyance mechanism 71 is a mechanism for conveying the continuous body 51c of the film 51 in the conveyance direction. As the conveyance mechanism 71, the conveyance rollers shown in Figure 14 and a conveyor belt (not shown) can be exemplified. The ink ejection device 72 ejects ink onto the continuous body 51c of the film 51 conveyed in the conveyance direction by the conveyance mechanism 71 to form a flat normal printing layer 60.

[0176] On its downstream side, the adhesive ejection device 73 directly ejects an adhesive for forming the adhesive layer 52 onto the continuous body 51c of the film 51, or ejects an adhesive for forming the adhesive layer 52 onto the printing layer 60. In the present embodiment, a colorless and transparent ultraviolet curable adhesive is ejected. Thereafter, the first irradiation device 74 irradiates light (here, ultraviolet rays) that cures the adhesive layer 52, thereby curing the adhesive layer 52. However, the first irradiation device 74 irradiates ultraviolet rays to such an extent that the adhesive layer 52 is not completely cured. In this way, while fixing the shape of the adhesive layer 52, adhesiveness is ensured. For this purpose, the intensity and irradiation time of the ultraviolet rays are adjusted.

[0177] In this embodiment, in order to form the adhesive layer 52 with a relatively narrow width, an inkjet device is used as the ink ejection device 72 and the adhesive ejection device 73. However, the ink ejection device 72 is not particularly limited, and various printing methods (liquid coating methods) such as gravure printing and offset printing may be used to form the printed layer 60. In addition, the adhesive ejection device 73 is not limited to an inkjet device as long as it can form the adhesive layer 52 with a relatively narrow width.

[0178] Thereafter, the decoration layer conveying mechanism 75 supplies the continuum 53c of the decoration layer 53 onto the adhesive layer 52. The decoration layer conveying mechanism 75 may include a device including a delivery roller (not shown) for delivering the continuum 53c of the decoration layer 53, a conveying roller 751, and a winding roller (not shown) for winding up the remaining portion of the continuum 53c of the decoration layer 53.

[0179] The length of the continuum 53c of the decorative layer 53 in the direction perpendicular to the conveying direction is set to be greater than the length of the region where the adhesive layer 52 is formed. That is, it is set that the one or more adhesive layers 52 formed on the continuum 51c of the film 51 are all covered by the continuum 53c of the decorative layer 53. In addition, the continuum 53c of the decorative layer 53 is supplied in a manner in contact with the surface of the adhesive layer 52. The adhesive layer 52 has adhesiveness, so the continuum 53c of the decorative layer 53 adheres to the adhesive layer 52. During this time, the continuum 53c of the decorative layer 53 and the adhesive layer 52 are also conveyed, and 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 continuum 53c of the decorative layer 53 that is not adhered to the adhesive layer 52 is wound on a winding roller and recovered.

[0180] Finally, the second irradiation device 76 irradiates light (ultraviolet rays in this case) for curing the adhesive layer 52, and completely cures the adhesive layer 52 via the decorative layer 53. Thus, the adhesive layer 52 and the decorative layer 53 are firmly bonded and integrated, and the three-dimensional decorative portion 54 is formed.

[0181] According to the above manufacturing method, the decorative layer 53 can be provided on the adhesive layer 52, and a three-dimensional decorative portion 54 of the decorative layer 53 protruding from the surface of the film 51 in the thickness direction of the film 51 is formed. By using the decorative film 50 formed with the three-dimensional decorative portion 54 for any of the sanitary napkin 1, the individual package 30 of the sanitary napkin, and the package 40 of the sanitary napkin, the user can be given the impression that the product is a three-dimensional and exquisitely decorated product. However, the above manufacturing method is an example, and the manufacturing method of the decorative film 50 is not particularly limited.

[0182] The above-described embodiments are for easily understanding the present invention and are not intended to limitatively interpret the present invention. It goes without saying that the present invention can be changed and improved without departing from its gist, and the present invention includes its equivalents.

Claims

1. A decorative film for absorbent products, characterized in that: The decorative film for absorbent products is used for any one of absorbent articles, individual packages of absorbent articles, and packages of absorbent articles, and is provided with decoration. The decorative film for absorbent products has: membrane; an adhesive layer disposed on a surface of the film; and A decorative layer is provided on the adhesive layer and has a maximum thickness of 10 μm or less, The decorative layer is provided at a position that can be touched by a user's finger and protrudes from the surface of the film in the thickness direction of the film. The minimum width of the adhesive layer, the average fiber diameter of the top sheet of the absorbent article, and the average distance between fibers of the top sheet are less than 0.4 mm.

2. The decorative film for absorbent products according to claim 1, characterized in that: The maximum thickness of the adhesive layer is greater than the maximum thickness of the decorative layer.

3. The decorative film for absorbent products according to claim 1 or 2, characterized in that: The maximum thickness of a portion where the decorative layer overlaps the adhesive layer and the average fiber diameter of the surface sheet are less than 50 μm.

4. The decorative film for absorbent products according to claim 1 or 2, characterized in that: The decorative film for absorbent products has another adhesive layer protruding from the surface of the film and not overlapping with the decorative layer. The minimum width of the other adhesive layer is less than 0.4 mm, The absorbent article has a width direction and a length direction, and has a pair of side sheets arranged along the length direction at both ends of the width direction on the skin side of the surface sheet. The coefficient of dynamic friction of the skin-side surface of the top sheet is different from the coefficient of dynamic friction of the skin-side surface of the side sheet.

5. The decorative film for absorbent products according to claim 1 or 2, characterized in that: The portion of the film having the decorative layer and the adhesive layer has better bendability and higher rigidity than the portion of the film not provided with the adhesive forming the adhesive layer.

6. The decorative film for absorbent products according to claim 1 or 2, characterized in that: A portion where the decorative layer and the adhesive layer overlap each other has a portion with different thicknesses.

7. The decorative film for absorbent products according to claim 6, characterized in that: In a portion where the decorative layer and the adhesive layer overlap, a thickness at an end portion in a predetermined direction is smaller than a thickness at a portion adjacent to the end portion and located on the inner side in the predetermined direction.

8. The decorative film for absorbent products according to claim 1 or 2, characterized in that: The decorative layer is a layer formed of any one of a metal foil, a holographic foil, and a pigment foil.

9. The decorative film for absorbent products according to claim 1 or 2, characterized in that: The decorative film for absorbent products comprises a first adhesive layer having a minimum width of less than 0.4 mm and a second adhesive layer adjacent to the first adhesive layer. In the width direction of the first adhesive layer, the minimum distance between the first adhesive layer and the second adhesive layer is 0.47 mm or more. The value obtained by dividing the total area of ​​the one or more decorative layers by the plane area of ​​the film is 0.8% or more and less than 6.8%.

10. The decorative film for absorbent products according to claim 1 or 2, characterized in that: The absorbent article has an absorbent core comprising a superabsorbent polymer, The minimum width of the adhesive layer is smaller than the maximum particle size of the superabsorbent polymer.

11. The decorative film for absorbent products according to claim 10, characterized in that: The minimum width of the adhesive layer is smaller than the average particle size of the superabsorbent polymer.

12. The decorative film for absorbent products according to claim 1 or 2, characterized in that: The decorative film for absorbent products has a third adhesive layer and a fourth adhesive layer. The maximum thickness of the third adhesive layer is different from the maximum thickness of the fourth adhesive layer, The absorbent article has a width direction and a length direction, and has a pair of side sheets arranged along the length direction at both ends of the width direction on the skin side of the surface sheet. The average thickness of the top sheet is different from the average thickness of the side sheets.

Images