Absorbent pad, absorbent article set, and absorbent article manufacturing method

Abstract

An absorbent pad (1) has mutually orthogonal front-rear direction, width direction and thickness direction in a spread state, and has an absorbent core and a skin-side sheet provided in a portion on the skin side compared with the absorbent core, and is used by being placed on a skin side surface of a disposable diaper (101), wherein the absorbent pad (1) and the disposable diaper (101) have mutually orthogonal front-rear direction, width direction and thickness direction in a spread state, the absorbent pad (1) has a pad pattern (8) that can be visually recognized from the skin side, the pad pattern (8) has a prescribed length in the front-rear direction, the disposable diaper (101) has a diaper pattern (108) that can be visually recognized from the skin side, the diaper pattern (108) has a prescribed length in the front-rear direction, and the maximum length (d8) in the width direction of the pad pattern (8) is different from the maximum length (d108) in the width direction of the diaper pattern (108).

Description

Technical Field

[0001] This invention relates to absorbent pads, absorbent articles, and methods for manufacturing absorbent articles. Background Technology

[0002] As absorbent articles, for example, there are absorbent pads in the shape of a longitudinal pad as disclosed in Patent Document 1. In addition, in order to reduce the frequency and inconvenience of changing absorbent articles and to suppress excrement leakage, the absorbent pad of Patent Document 1 is placed on the skin side of absorbent articles such as strip-type disposable diapers disclosed in Patent Document 2.

[0003] Prior art literature

[0004] Patent documents

[0005] Patent Document 1: Japanese Patent Application Publication No. 2022-143208

[0006] Patent Document 2: Japanese Patent Application Publication No. 2018-202101 Summary of the Invention

[0007] The problem that the invention aims to solve

[0008] However, the following issues generally exist: wearers, caregivers, and protectors may find it difficult to discern the placement of the absorbent pad relative to the disposable diaper, making it difficult for them to use both the absorbent pad and the disposable diaper together.

[0009] Therefore, the present invention was made in view of the above-mentioned problems, and its object is to provide an absorbent pad that can be easily placed on a disposable diaper for wear.

[0010] Solution for solving the problem

[0011] The main invention for achieving the above-mentioned objective is an absorbent pad that, in its unfolded state, has mutually orthogonal front-back, width, and thickness directions. The absorbent pad includes an absorbent core and a skin side panel, the skin side panel having a portion located on the skin side relative to the absorbent core. The absorbent pad is used by placing it on the skin side of a disposable diaper. The absorbent pad and the disposable diaper, in their unfolded state, have mutually orthogonal front-back, width, and thickness directions. The absorbent pad has a pad pattern that is visually identifiable from the skin side, the pad pattern having a predetermined length in the front-back direction. The disposable diaper has a diaper pattern that is visually identifiable from the skin side, the diaper pattern having a predetermined length in the front-back direction. The maximum length of the pad pattern in the width direction is different from the maximum length of the diaper pattern in the width direction.

[0012] Other features of the invention will become apparent from the description and accompanying drawings.

[0013] The effects of the invention

[0014] According to the present invention, the absorbent pad can be easily placed on a disposable diaper for use. Attached Figure Description

[0015] Figure 1 This is a top view of the absorbent pad 1 in its unfolded and elongated state, viewed from the side of the skin.

[0016] Figure 2 This is a top view of the absorbent pad 1 in its unfolded and elongated state, viewed from a non-skin side.

[0017] Figure 3 yes Figure 1 A schematic cross-sectional view along the I-I direction.

[0018] Figure 4 This is a diagram illustrating the leak-proof wall section 6.

[0019] Figure 5 This is a top view of the diaper 101 in its unfolded and elongated state, viewed from the side of the skin.

[0020] Figure 6 This is a top view of the diaper 101 in its unfolded and elongated state, viewed from the non-skin side.

[0021] Figure 7 yes Figure 5 A-A direction outline sectional view.

[0022] Figure 8 This is a diagram illustrating the leak-proof wall section 106.

[0023] Figure 9A This is a 3D model of the packaging of the pad (item #50). Figure 9B This is a 3D model of the diaper packaging unit 500.

[0024] Figure 10 This diagram illustrates the state in which pad 1 is placed on the skin side of diaper 101.

[0025] Figure 11 This is a schematic diagram showing a cross-section of the pad 1 at its center CL1 in the front-back direction, relating to the pad 1 and diaper 1 in their wearing state.

[0026] Figure 12 This diagram illustrates the state in which the pad 1 and the diaper 101 overlap when viewed from the skin side, with the front bend F1a of the pad overlapping the back bend F10b of the diaper. Detailed Implementation

[0027] The following will be understood from the description in this specification and the accompanying drawings.

[0028] (Method 1)

[0029] An absorbent pad, in its unfolded state having mutually orthogonal front-back, width, and thickness directions, comprises: an absorbent core; and a skin side sheet having a portion disposed on the skin side relative to the absorbent core. The absorbent pad is used by placing it on the skin side of a disposable diaper. The absorbent pad and the disposable diaper, in their unfolded state, have mutually orthogonal front-back, width, and thickness directions. The absorbent pad has a pad pattern visible from the skin side, the pad pattern having a predetermined length in the front-back direction. The disposable diaper has a diaper pattern visible from the skin side, the diaper pattern having a predetermined length in the front-back direction. The maximum length of the pad pattern in the width direction is different from the maximum length of the diaper pattern in the width direction.

[0030] According to method 1, when the absorbent pad is placed on a disposable diaper for wearing, by making the length of the pad pattern in the width direction different from the length of the diaper pattern in the width direction, the absorbent pad and the disposable diaper can be easily distinguished visually, and the position of the absorbent pad relative to the disposable diaper can be easily aligned, so that the absorbent pad can be easily placed on the disposable diaper for wearing.

[0031] (Method 2)

[0032] The absorbent pad as described in method 1 is characterized in that, when viewed from the skin side, when the absorbent pad is overlapped on the disposable diaper in such a way that the center of the absorbent pad in the width direction overlaps with the center of the disposable diaper in the width direction, at least a portion of the pad pattern and at least a portion of the diaper pattern can be visually identified, and the pad pattern and the diaper pattern have an overlapping portion in the width direction.

[0033] According to method 2, the absorbent pad can be easily aligned with the disposable diaper, and the absorbent pad can be easily placed on the disposable diaper for wearing.

[0034] (Method 3)

[0035] The absorbent pad as described in method 1 or 2 is characterized in that the length of the pad pattern in the width direction is shorter than the length of the diaper pattern in the width direction.

[0036] According to method 3, it is easy to align the absorbent pad with the disposable diaper and to place the absorbent pad on the disposable diaper for wearing.

[0037] (Method 4)

[0038] The absorbent pad according to any one of methods 1 to 3 is characterized in that the pad pattern is provided at the end of at least one side in the front-back direction of the absorbent pad.

[0039] According to method 4, it is easy to align the absorbent pad with the disposable diaper, and it is easy to place the absorbent pad on the disposable diaper for wearing. Even when the absorbent pad is worn individually, the wearer can easily identify the direction in which the absorbent pad is placed against the wearer.

[0040] (Method 5)

[0041] An absorbent pad according to any one of methods 1 to 4 is characterized in that the pad pattern has a portion that extends from one end of the absorbent pad in the front-back direction to the other end.

[0042] According to method 5, the front-to-back direction of the absorbent pad relative to the wearer's body is easily visually identified, thus making the wearing of the absorbent pad easier.

[0043] (Method 6)

[0044] The absorbent pad according to any one of methods 1 to 5 is characterized in that the pad pattern is provided at least in the central part of the width direction.

[0045] According to method 6, in addition to the direction along the front-back direction of the absorbent pad relative to the wearer's body, the central part of the absorbent pad in the width direction is also easy to identify, thus making it easier to wear the absorbent pad.

[0046] (Method 7)

[0047] The absorbent pad according to any one of methods 1 to 6 is characterized in that the length of the pad pattern in the width direction is 0.5 mm or more, and is less than 10% of the maximum length of the absorbent core in the width direction.

[0048] According to method 7, compared with cases where the length of the pad pattern in the width direction is less than 0.5 mm, the wearer can easily visually identify the pad pattern, and compared with cases where the length is greater than 10% of the maximum length in the width direction of the absorbent core, it is easier to identify as a pattern indicating the position of the absorbent pad in the front-back direction.

[0049] (Method 8)

[0050] The absorbent pad according to any one of methods 1 to 7 is characterized in that the absorbent core has a low unit area weight portion that is lower than the surrounding area weight, the low unit area weight portion has a predetermined length in the front-back direction, and the maximum length of the pad pattern in the width direction is shorter than the maximum length of the low unit area weight portion in the width direction.

[0051] According to method 8, the wearer can easily identify the pad pattern along the front and back direction, and can easily visually identify the front and back direction of the absorbent pad relative to the wearer's body, thus making the wearing of the absorbent pad easier.

[0052] (Method 9)

[0053] The absorbent pad according to any one of methods 1 to 8 is characterized in that the absorbent pad has a non-skin side pattern that can be visually identified from the non-skin side, and the non-skin side pattern has a predetermined length in the front-back direction.

[0054] According to method 9, the wearer can easily identify the direction along the front and back from the non-skin side of the absorbent pad, thus making it easier to wear the absorbent pad and place it into a disposable diaper.

[0055] (Method 10)

[0056] The absorbent pad according to any one of methods 1 to 9 is characterized in that the pad pattern is located at a position closer to the non-skin side than the skin side of the skin side sheet.

[0057] According to method 10, the possibility of colorants used to set the pad pattern coming into direct contact with the wearer's skin can be reduced, the possibility of color adhering to the wearer's skin can be reduced, and the possibility of adverse effects on the wearer's skin can be reduced.

[0058] (Method 11)

[0059] The absorbent pad according to any one of methods 1 to 10 is characterized in that the pad pattern is formed by a colored adhesive disposed on the non-skin side of the skin side sheet.

[0060] According to method 11, the colored adhesive can function as both an adhesive for fixing the skin side sheet and a colorant for setting the pad pattern. Therefore, it can reduce the possibility of reduced adhesive strength due to separate application of adhesive and colorant, and can achieve the fixing of the skin side sheet and the formation of the pad pattern in one process, thus simplifying the manufacturing process of the absorbent pad.

[0061] (Method 12)

[0062] The absorbent pad according to any one of methods 1 to 11 is characterized in that the absorbent pad has a pair of leak-proof wall portions on both sides in the width direction, each of the leak-proof wall portions having a leak-proof wall telescopic member that extends and retracts in the front-back direction, the color of the pad pattern is the same as the color of the leak-proof wall telescopic member, and the color of the pad pattern is darker than the color of the leak-proof wall telescopic member.

[0063] According to method 12, in addition to the pad pattern, the leak-proof wall stretching member along the front-back direction is easily visually identifiable, and the front-back direction of the absorbent pad relative to the wearer's body is easily visually identifiable, thus making the wearing of the absorbent pad easier.

[0064] (Method 13)

[0065] The absorbent pad according to any one of methods 1 to 12 is characterized in that the length of the pad pattern in the width direction is less than half the length of the diaper pattern in the width direction.

[0066] According to method 13, compared to cases where the length of the pad pattern in the width direction is more than half the length of the diaper pattern in the width direction, it is easier to align the absorbent pad with respect to the disposable diaper, and the absorbent pad can be easily placed on the disposable diaper for wearing.

[0067] (Method 14)

[0068] The absorbent pad according to any one of methods 1 to 13 is characterized in that the disposable diaper has a pair of leak-proof wall portions on both sides in the width direction, the leak-proof wall portions are respectively provided with leak-proof wall pieces along the front-back direction, the disposable diaper is provided with a fixing portion for fixing the leak-proof wall pieces to a member adjacent in the thickness direction, and in the unfolded and stretched state of the absorbent pad and the disposable diaper, the sum of the length in the width direction at the center of the front-back direction of the absorbent pad and twice the maximum length in the thickness direction of the absorbent pad is less than the sum of the distance between the inner ends of the fixing portion in the width direction at the center of the front-back direction of the disposable diaper and twice the length in the width direction from the inner end of the fixing portion to the inner end of the leak-proof wall piece.

[0069] According to method 14, when the absorbent pad is placed on the skin side of a disposable diaper for wearing, the absorbent pad can easily retract into the inside of the leak-proof wall, thus reducing the possibility of the absorbent pad shifting position. Furthermore, if excrement leaks onto the outer side of the absorbent pad in the width direction, the leak-proof wall of the disposable diaper can block the excrement, thus reducing the possibility of excrement leaking onto the outer side of both the disposable diaper and the absorbent pad.

[0070] (Method 15)

[0071] The absorbent pad according to any one of methods 1 to 14 is characterized in that the disposable diaper has a pair of leak-proof wall portions on both sides in the width direction, each of the leak-proof wall portions having a leak-proof wall piece along the front-back direction, the disposable diaper having a fixing portion for fixing the leak-proof wall piece to a member adjacent in the thickness direction, the side end of the fixing portion having a straight portion along the front-back direction, the absorbent pad having a straight portion along the front-back direction at the side end in the width direction, and the value obtained by subtracting the value of the maximum length in the width direction at the center of the front-back direction of the disposable diaper in the unfolded and stretched state from the value of the distance between the inner ends of the fixing portion in the width direction at the center of the front-back direction of the disposable diaper in the unfolded and stretched state is 0 mm or more and 20 mm or less.

[0072] According to method 15, an absorbent pad can be placed along the fixing part on the inside of the disposable diaper with the leak-proof wall, thereby reducing the positional displacement of the absorbent pad and reducing the possibility of causing discomfort to the wearer even when the absorbent pad is placed on the disposable diaper.

[0073] (Method 16)

[0074] The absorbent pad according to any one of methods 1 to 15 is characterized in that the disposable diaper has a pair of leak-proof wall portions arranged at a predetermined interval on both sides in the width direction, each of the leak-proof wall portions having a leak-proof wall piece along the front-back direction, the disposable diaper having a fixing portion for fixing the leak-proof wall piece to a member adjacent in the thickness direction, the side end of the fixing portion having a straight portion along the front-back direction, the absorbent core having a straight portion along the front-back direction at its side end in the width direction, and the value obtained by subtracting the length in the width direction at the center of the front-back direction of the disposable diaper in the unfolded and extended state from the inner ends of the fixing portion in the width direction, and the length in the width direction of the absorbent pad in the unfolded and extended state from the inner end of the fixing portion to the inner end of the leak-proof wall piece in the width direction of the disposable diaper is 0 mm or more, and is shorter than the value of the length in the width direction of the disposable diaper from the inner end of the fixing portion to the inner end of the leak-proof wall piece.

[0075] According to method 16, an absorbent pad can be placed along the fixing part on the inside of the disposable diaper with the leak-proof wall, thereby reducing the positional displacement of the absorbent pad and reducing the possibility of causing discomfort to the wearer even when the absorbent pad is placed on the disposable diaper.

[0076] (Method 17)

[0077] The absorbent pad according to any one of methods 1 to 16 is characterized in that the absorbent pad has a pair of pad leak-proof wall portions on both sides of the width direction, and each of the pad leak-proof wall portions has a pad leak-proof wall telescopic member that extends and retracts in the front-back direction; the disposable diaper has a pair of diaper leak-proof wall portions on both sides of the width direction, and each of the diaper leak-proof wall portions has a diaper leak-proof wall telescopic member that extends and retracts in the front-back direction; the pad leak-proof wall telescopic member is colored; and the diaper leak-proof wall telescopic member is colored.

[0078] According to method 17, in addition to the pad pattern and diaper pattern, the wearer can visually identify the pad leak-proof wall stretching member and the diaper leak-proof wall stretching member along the front-back direction. Thus, it is easy to visually identify the front-back direction of the absorbent pad and the disposable diaper relative to the wearer's body, thereby making it easier to wear the absorbent pad.

[0079] (Method 18)

[0080] The absorbent pad as described in method 17 is characterized in that the color of the pad's leak-proof wall stretching member is the same as the color of the diaper's leak-proof wall stretching member.

[0081] According to method 18, in addition to the pad pattern and diaper pattern, the pad leak-proof wall stretching member and the diaper leak-proof wall stretching member along the front and back direction can be easily identified, and the front and back direction of the absorbent pad and disposable diaper relative to the wearer's body can be easily identified, thus making the wearing of the absorbent pad easier.

[0082] (Method 19)

[0083] The absorbent pad according to any one of methods 1 to 18 is characterized in that the absorbent pad has a pad-side bend closest to the center position of the front-back direction on one side of the front-back direction, and a pad-side bend closest to the center position of the front-back direction on the other side of the front-back direction; the disposable diaper has a diaper-side bend closest to the center position of the front-back direction on one side of the front-back direction, and a diaper-side bend closest to the center position of the front-back direction on the other side of the front-back direction; when viewed from the skin side, when the absorbent pad and the disposable diaper are overlapped in such a way that the pad-side bend and the diaper-side bend overlap, the portion in which the shortest length in the width direction of the disposable diaper overlaps with the shortest length in the width direction of the absorbent pad is a portion.

[0084] According to method 19, when the front-to-back orientation of the absorbent pad and the disposable diaper are correctly combined, it is difficult for the wearer to experience a sense of disharmony. Therefore, it is easy for the wearer to identify the correct wearing orientation of the absorbent pad and the disposable diaper.

[0085] (Method 20)

[0086] The absorbent pad according to any one of methods 1 to 19 is characterized in that the absorbent pad has a pad-side bend closest to the center position of the front-back direction on one side of the front-back direction, and a pad-side bend closest to the center position of the front-back direction on the other side of the front-back direction; the disposable diaper has a diaper-side bend closest to the center position of the front-back direction on one side of the front-back direction, and a diaper-side bend closest to the center position of the front-back direction on the other side of the front-back direction; when viewed from the skin side, when the absorbent pad and the disposable diaper are overlapped in such a way that the pad-side bend and the diaper-side bend overlap, the portion in which the shortest length in the width direction of the disposable diaper overlaps with the portion in the width direction of the absorbent pad.

[0087] According to method 20, even when the front and back directions of the absorbent pad and the disposable diaper are worn incorrectly, it is easy for the wearer to experience a sense of disorientation. Therefore, it is easy for the wearer to identify the correct orientation of the absorbent pad and the disposable diaper.

[0088] (Method 21)

[0089] The absorbent pad according to any one of methods 1 to 20 is characterized in that the diaper pattern is provided at one end of the disposable diaper in the front-back direction, and the diaper pattern at one end of the disposable diaper in the front-back direction has a central portion of the diaper pattern in the width direction between each other, which is a different color from the side ends, the color of the pad pattern is different from the color of the central portion of the diaper pattern, and the length of the pad pattern in the width direction at one end of the absorbent pad in the absorbent direction is shorter than the length of the central portion of the diaper pattern in the width direction.

[0090] According to method 21, the wearer can easily identify the pad pattern relative to the diaper pattern, thus visually distinguishing the absorbent pad from the disposable diaper, and easily aligning the absorbent pad with the disposable diaper, thus easily placing the absorbent pad on the disposable diaper for wearing.

[0091] (Method 22)

[0092] An absorbent article group comprises: an absorbent pad package containing an absorbent pad in a pad receiving member; and a disposable diaper package containing a disposable diaper in a diaper receiving member, characterized in that the absorbent pad and the disposable diaper, in an unfolded state, have mutually orthogonal front-back direction, width direction, and thickness direction; the absorbent pad has an absorbent core and a skin side sheet having a portion of the absorbent core disposed on the skin side, and has a pad pattern that can be visually identified from the skin side, the pad pattern having a predetermined length in the front-back direction; the disposable diaper has a diaper pattern that can be visually identified from the skin side, the diaper pattern having a predetermined length in the front-back direction; and the length of the pad pattern in the width direction is different from the length of the diaper pattern in the width direction.

[0093] According to method 22, when the absorbent pad is placed on a disposable diaper for wearing, the length of the pad pattern in the width direction is different from the length of the diaper pattern in the width direction. Therefore, the absorbent pad and the disposable diaper can be visually distinguished, and the position of the absorbent pad relative to the disposable diaper can be easily aligned. Thus, the absorbent pad can be easily placed on the disposable diaper for wearing.

[0094] (Method 23)

[0095] A method for manufacturing an absorbent article includes an absorbent pad and a disposable diaper. The absorbent pad, in an unfolded state, has mutually orthogonal front-back, width, and thickness directions, and has an absorbent core and a skin side sheet having a portion of the absorbent core disposed on the skin side. The disposable diaper, in an unfolded state, also has mutually orthogonal front-back, width, and thickness directions. The method is characterized by comprising: a step of providing a pad pattern visually identifiable from the skin side on the absorbent pad; and a step of providing a diaper pattern visually identifiable from the skin side on the disposable diaper. The pad pattern has a predetermined length in the front-back direction of the absorbent pad, and the diaper pattern is provided such that it has a predetermined length in the front-back direction of the disposable diaper. The length of the pad pattern in the width direction is different from the length of the diaper pattern in the width direction.

[0096] According to method 23, when the absorbent pad is placed on a disposable diaper for wearing, the length of the pad pattern in the width direction is different from the length of the diaper pattern in the width direction. Therefore, the absorbent pad and the disposable diaper can be visually distinguished, and the position of the absorbent pad relative to the disposable diaper can be easily aligned. Thus, the absorbent pad can be easily placed on the disposable diaper for wearing.

[0097] ===Implementation Methods===

[0098] The following describes the implementation of an absorbent pad (urine-absorbing pad) for adults as an example of an absorbent article. However, it is not limited to the above; absorbent articles may also include, for example, disposable diapers in the form of belts, disposable diapers in the form of shorts, sanitary napkins, panty liners, underwear-type sanitary napkins, and incontinence pads. Furthermore, the wearer of the absorbent article is not limited to adults; it may also be a child or a pet. In addition, the wearer of the absorbent article (urine-absorbing pad 1) or the person who makes the wearer wear the absorbent article will be referred to as "wearer, etc." or "user".

[0099] The absorbent articles of the present invention can be used individually or in combination. By using multiple absorbent articles in combination, leakage of excrement can be easily suppressed, reducing the frequency of changing absorbent articles and simplifying excretion management. For example, absorbent pads such as diaper pads can be placed on the skin side of shorts-type disposable diapers or belt-type disposable diapers. Hereinafter, an embodiment in which absorbent pad 1 (hereinafter also referred to as "pad 1") is placed on the skin side of belt-type disposable diaper 101 (hereinafter also referred to as "diaper 101") will be described.

[0100] The unfolded state of the pad 1 and diaper 101 refers to the state in which the pad 1 and diaper 101 are unfolded as a whole in a flat shape, that is, the state in which all the folded parts are unfolded. In addition, when the absorbent article is a panty type (underwear type), the unfolded state is defined as the state in which the side joints on both sides of the absorbent article are separated and the absorbent article is opened and unfolded in a flat shape. The elongated state of the pad 1 and diaper 101 is the state in which the folds produced on the pad 1 and diaper 101 are substantially invisible to the naked eye, that is, the state in which the pad 1 and diaper 101 are elongated until the size of each component constituting the pad 1 and diaper 101 (such as the side piece 5 described later) becomes the same as or close to the size of the individual component.

[0101] The pad 1 and diaper 101, when unfolded, have mutually orthogonal front-back, width, and thickness directions. Specifically, the pad 1 has mutually orthogonal front-back, width, and thickness directions, and the diaper 101 has mutually orthogonal front-back, width, and thickness directions. Furthermore, when using the pad 1 and diaper 101 together, that is, when the pad 1 is placed on the skin side of the diaper 101, the front-back direction of the pad 1 is consistent with the front-back direction of the diaper 101, the width direction of the pad 1 is consistent with the width direction of the diaper 101, and the thickness direction of the pad 1 is consistent with the thickness direction of the diaper 101. The front-back direction of the pad 1 and diaper 101 corresponds to the length direction of the absorbent body 10 and absorbent body 110, which will be described later. When worn, the front side of the pad 1 and diaper 101 in the front-back direction corresponds to the wearer's abdominal side, and the back side corresponds to the wearer's back side. In addition, in the thickness direction of the pad 1 and the diaper 101, the side that comes into contact with the wearer's skin is designated as the skin side, and the opposite side is designated as the non-skin side.

[0102] <<Basic Components of Absorbent Pad 1>>

[0103] Figure 1 This is a top view of the absorbent pad 1 in its unfolded and elongated state, viewed from the side of the skin. Figure 2 This is a top view of the absorbent pad 1 in its unfolded and elongated state, viewed from a non-skin side. Figure 3 yes Figure 1 A schematic cross-sectional view along the I-I direction. Figure 1 The center line C1-C1 shown indicates the center of pad 1 in the width direction, and the center line CL1 indicates the center of pad 1 in the front-to-back direction when it is unfolded. Figure 3 In the above, some components such as adhesives are omitted.

[0104] The portion located between the two ends of the pad 1 in the front-back direction, having the shortest length in the width direction of the pad 1, and situated under the wearer's crotch when worn, is also referred to as the "crotch portion 1m". The crotch portion 1m can also be the central portion when the pad 1 is divided into three equal parts in the front-back direction, but it is not limited to this. For example, the length of the crotch portion 1m in the front-back direction can be either shorter or longer than the length when the pad 1 is divided into three equal parts in the front-back direction. In a pad that extends further back, the crotch portion 1m can also be located in a forward position.

[0105] like Figures 1-3As shown, the pad 1 has: an absorbent body 10; a liquid-permeable surface sheet 2 (e.g., nonwoven fabric or open-cell film) disposed on the skin side of the absorbent body 10; a liquid-impermeable or difficult-to-permeable back sheet 3 (e.g., resin film) disposed on the non-skin side of the absorbent body 10; an outer sheet 4 (e.g., nonwoven fabric) disposed on the non-skin side of the back sheet 3; and a pair of side sheets 5 (e.g., hydrophobic nonwoven fabric) disposed on both sides of the surface sheet 2 in the width direction.

[0106] The absorbent body 10 has an absorbent core 11 and a core-covering sheet 12. The absorbent core 11 has a two-layer structure, having an upper absorbent core 11a on the skin side and a lower absorbent core 11b on the non-skin side. Examples of the upper and lower absorbent cores 11a and 11b include liquid-absorbing fibers such as pulp fibers containing SAP (superabsorbent polymer) shaped into a predetermined form. The core-covering sheet 12 has an upper core-covering sheet 12a covering the skin side of the upper absorbent core 11a and a lower core-covering sheet 12b covering both the skin side and the non-skin side of the lower absorbent core 11b. Examples of the core-covering sheet 12 include liquid-permeable paper or non-woven fabric.

[0107] In addition, the upper absorbent core 11a and the lower absorbent core 11b have slits 11as and 11bs extending in the front-to-back direction and penetrating in the thickness direction at the center of the 1m width direction of the crotch area. The slits 11as and 11bs serve as the starting point for folding, and the upper absorbent core 11a and the lower absorbent core 11b can be easily deformed to cover the wearer's crotch.

[0108] However, the composition of the absorbent 10 is not limited to the above-described composition. For example, the absorbent core may be composed of a single layer, may not have slits 11as and 11bs, and may not be covered by the core-covering sheet 12. A low-weight portion with low weight per unit area of ​​absorbent fibers, or a compressed portion compressed in the thickness direction, may be provided instead of slits 11as and 11bs. Furthermore, the absorbent core may be a SAP sheet formed by attaching a SAP layer to a hydrophilic sheet, or an air-laid sheet formed by shaping absorbent fibers into a sheet using an air-laid method. Additionally, the absorbent materials constituting the upper absorbent core 11a and the lower absorbent core 11b may be different.

[0109] In addition, the pad 1 has a pair of leak-proof wall portions 6 on both sides in the width direction, which can stand upright towards the skin. The leak-proof wall portion 6 is formed by side plates 5 and leak-proof wall elastic members (leak-proof wall telescopic members) 7 such as rubber threads. At the folded-back portion of the inner end of the side plate 5 in the width direction, the leak-proof wall elastic member 7 is fixed in an extended state along the front-back direction.

[0110] Figure 4This diagram illustrates the leak-proof wall portion 6. The pad 1 has a leak-proof wall portion 6 on its side in the width direction, which can stand upright towards the skin. The leak-proof wall portion 6 is formed by a side sheet (leak-proof wall sheet) 5 and a leak-proof wall elastic member 7. The side sheet 5 is fixed to the surface sheet 2 from one end along the front-back direction to the other by an adhesive area A1, and both ends in the front-back direction are fixed to the surface sheet 2 by adhesive areas A2 at a position closer to the inside of the adhesive area A1 in the width direction. Adhesive areas A1 and A2 are the fixing parts that fix the side sheet 5 to the surface sheet 2 (the member adjacent to the side sheet 5 in the thickness direction). Through this fixing, the portion of the side sheet 5 closer to the inside of the adhesive areas A1 and A2 stands upright towards the skin as the leak-proof wall portion 6 due to the contraction of the leak-proof wall elastic member 7. Therefore, the inner end of the adhesive area A1 in the width direction becomes the starting point 6s for the uprighting of the leak-proof wall portion 6 in the width direction.

[0111] <<Basic Components of Belt-Type Disposable Diapers 101>>

[0112] Figure 5 This is a top view of the diaper 101 in its unfolded and elongated state, viewed from the side of the skin. Figure 6 This is a top view of the diaper 101 in its unfolded and elongated state, viewed from the non-skin side. Figure 7 yes Figure 5 A-A direction outline sectional view. Figure 5 The center line C2-C2 indicates the center of the diaper 101 in the width direction, and the center line CL2 indicates the center of the diaper 101 in the front-back direction when unfolded. Figure 7 In the above, some components such as adhesives are omitted.

[0113] Diaper 101 has a main body 100A and a pair of hook and loop fasteners 100B. For example... Figure 5 As shown, the main body 100A is a strip-shaped member located in the center of the width direction, having a front part X, a crotch part Y, and a rear part Z. The front part X is the portion located on the front (abdominal side) of the wearer. The rear part Z is the portion located on the rear (hip side, back side) of the wearer. The crotch part Y is the portion located between the front part X and the rear part Z, and is the shortest portion in the width direction of the diaper 101.

[0114] like Figures 5-7As shown, the diaper 101 includes: an absorbent body 110; a liquid-permeable surface sheet 102 (e.g., nonwoven fabric or open-cell film) disposed on the skin side of the absorbent body 110; a liquid-impermeable or difficult-to-permeable back sheet 103 (e.g., resin film) disposed on the non-skin side of the absorbent body 110; an outer sheet 104 (e.g., nonwoven fabric) disposed on the non-skin side of the back sheet 103; and a pair of side sheets 105 (e.g., hydrophobic nonwoven fabric) disposed on both sides of the surface sheet 102 in the width direction. Additionally, it may be appropriately equipped with a member that can stretch in the front-back direction or the width direction.

[0115] The absorbent body 110 has an absorbent core 111 and a core-covering sheet 112. The absorbent core 111 has a two-layer structure, having an upper absorbent core 111a on the skin side and a lower absorbent core 111b on the non-skin side. Examples of the upper and lower absorbent cores 111a and 111b include liquid-absorbing fibers such as pulp fibers containing SAP (superabsorbent polymer) shaped into a predetermined form. The core-covering sheet 112 has an upper core-covering sheet 112a covering the skin-side and non-skin-side of the upper absorbent core 11a; and a lower core-covering sheet 112b covering the skin-side and non-skin-side of the lower absorbent core 11b. Examples of the core-covering sheet 112 include liquid-permeable paper or non-woven fabric.

[0116] In addition, the lower absorbent core 111b has a slit 111bs extending along the front-to-back direction and penetrating through the thickness direction. The slit 111bs serves as the starting point for folding, allowing the absorbent core 111 to easily deform in response to the wearer's body or activities.

[0117] However, the composition of the absorbent core 110 is not limited to the above-described composition. For example, the absorbent core may be composed of a single layer, may not have slits 111bs, or may not be covered by the core-covering sheet 112. Alternatively, it may have a low-weight-per-unit-area section with low weight per unit area of ​​absorbent fibers, or a compressed section compressed in the thickness direction, instead of slits 111bs. Furthermore, the absorbent core may be a SAP sheet with an SAP layer attached to a hydrophilic sheet, or an air-laid mesh sheet formed by air-laid web formation of absorbent fibers into a sheet shape. Additionally, the absorbent materials constituting the upper absorbent core 111a and the lower absorbent core 111b may be different.

[0118] The diaper 101 has a pair of leak-proof wall portions 106 on both sides in the width direction, which can stand upright towards the skin. The leak-proof wall portion 106 is formed by a side panel 105 and a leak-proof wall elastic member (leak-proof wall stretching member) 107 such as rubber thread. At the folded-back portion of the inner end of the side panel 105 in the width direction, the leak-proof wall elastic member 107 is fixed in an extended state along the front-back direction.

[0119] Figure 8 This diagram illustrates the leak-proof wall portion 106. The diaper 101 has a leak-proof wall portion 106 on its side in the width direction, which can stand upright towards the skin. The leak-proof wall portion 106 is formed by a side panel (leak-proof wall panel) 105 and a leak-proof wall elastic member 107. The side panel 105 is fixed to the surface sheet 102 (a member adjacent to the side panel 105 in the thickness direction) from one end to the other along its front-back direction by an adhesive area A101, and both ends in the front-back direction are fixed to the surface sheet 102 by adhesive areas A102 at a position closer to the inside of the adhesive area A101 in the width direction. The adhesive areas A101 and A102 are the fixing portions that secure the side panel 105 to the surface sheet 102. Through this fixation, the portion of the side piece 105 that is inside the adhesive areas A101 and A102 is raised as a leak-proof wall portion 106 towards the skin by the contraction of the leak-proof wall elastic member 107. Therefore, the inner end of the adhesive area A101 in the width direction becomes the starting point 106s of the raised leak-proof wall portion 106 in the width direction.

[0120] The hook and loop fastener portion 100B is joined to the main body portion 100A and is formed protruding outward in the width direction. The hook and loop fastener portion 100B includes a side flap b1 of a sheet member such as non-woven fabric and an engaging portion b2 located at the end of the side flap b1. The engaging portion b2 is a member provided on the skin side of the side flap b1 and facing the non-skin side of the front portion X, and is detachably engaged with the non-skin side of the front portion X. As the engaging portion b2, a male member of the hook and loop fastener with a protrusion (hook member) that hooks with the fibers constituting the outer cover 104 can be exemplified. Alternatively, a member that easily engages with the engaging portion b2 (such as a target area of ​​the female member of the hook and loop fastener) can be provided on the non-skin side of the outer cover 104. In addition, the hook and loop fastener portion 100B may also have a telescopic member that expands and contracts in the width direction between the portion that fixes the side flap b1 and the main body portion 100A and the engaging portion b2.

[0121] <<About Absorbent Items>>

[0122] The absorbent articles assembly includes a packaging body 50 for the pad 1 and a packaging body 500 for the diaper 101. That is, the absorbent articles assembly is composed of multiple packaging bodies for absorbent articles, and in this embodiment, it is composed of packaging body 50 and packaging body 500.

[0123] Figure 9A This is a perspective view of the pad packaging body 50. The pad packaging body 50 is a packaging body that houses one or more of the aforementioned pads 1 within a pad housing member 51. In this embodiment, multiple pads 1 are housed in the pad housing member 51. The pads 1 in the packaging body 50 are housed in a folded state with one or more bends F1. Alternatively, the pads 1 may also be configured without bends F1.

[0124] Figure 9B This is a perspective view of the diaper packaging body 500. The diaper packaging body 500 is a packaging body that houses one or more of the aforementioned diapers 101 within a diaper housing member 501. In this embodiment, multiple diapers 101 are housed within the diaper housing member 501. The diapers 101 in the packaging body 500 are housed in a folded state with one or more bending portions F10. Alternatively, the diapers 101 may also be configured without bending portions F10.

[0125] The pad 1 and diaper 101 are distributed, sold, and stored in a state where they are respectively housed in the pad housing member 51 and the diaper housing member 501 (hereinafter also referred to as "housing state"), ensuring hygiene. The pad packaging 50 and the diaper packaging 500 constituting the absorbent article group of this embodiment are products that can be sold and distributed separately. For example, the absorbent article group may also consist of a packaging body (not shown) of a shorts-type diaper that is different from the diaper packaging body 500 and the pad packaging body 50.

[0126] Furthermore, in the absorbent article group of this embodiment, the pad packaging 50 and the diaper packaging 500 can be sold as products with different packaging, but are not limited to this. For example, the absorbent article group may also be a package of absorbent articles in which one or more pad packaging 50 and one or more diaper packaging 500 are housed in a single housing member, or it may be a package of absorbent articles in which one or more pads 1 and one or more diapers 101 are housed in a single housing member without being separately housed in separate housing members (pad housing member, diaper housing member).

[0127] The above describes the basic structure of pad 1 and diaper 101. However, the structure of pad 1 and diaper 101 described above is an example and is not limited to this. For example, it can also be a pad or diaper without the leak-proof wall parts 6, 106, etc.

[0128] ===Regarding the use of pad 1 and diaper 101===

[0129] Regarding the pad 1 taken out of the packaging body 50 and the diaper 101 taken out of the packaging body 500, firstly, it can be unfolded from the folded state at the bending part F1, F10, and the pad 1 can be placed on the skin side of the diaper 1 for use. Figure 10 This diagram illustrates the state in which pad 1 is placed on the skin side of diaper 101. For convenience, Figure 10 The state of the pad 1 and diaper 101 when unfolded and stretched is indicated.

[0130] To reduce the frequency and inconvenience of changing absorbent materials, or to better suppress leakage, pad 1 is sometimes worn with the pad resting on the side of the diaper 101 against the skin. However, when pad 1 is resting on the side of the diaper 101, it can be difficult for the wearer to discern its position relative to the diaper 101. For example, if the wearer does not correctly identify the position of pad 1 relative to the diaper 101, pad 1 may be placed on the diaper 101 at an angle relative to the front-back direction of the diaper 101.

[0131] In contrast, in this invention, the pad 1 has a pad pattern 8, and the diaper 101 has a diaper pattern 108.

[0132] like Figure 1 as well as Figure 10 As shown, pad pattern 8 is a linear pattern that can be visually identified from the side of the skin and has a specified length in the front-back direction.

[0133] like Figure 5 as well as Figure 10 As shown, the diaper pattern 108 is a two-line pattern that can be visually identified from the side of the skin and has a specified length in the front-back direction.

[0134] And, as Figure 10 As shown, the maximum length d8 in the width direction of the pad pattern 8 is different from the maximum length d108 in the width direction of the diaper pattern 108 (d8 ≠ d108).

[0135] Therefore, when the pad 1 is placed on the skin side of the diaper 1 for wearing, the maximum length d8 in the width direction of the pad pattern 8 on the pad 1 is different from the length d108 in the width direction of the diaper pattern 108 on the diaper 101, thus making it easy to visually distinguish the pad 1 and the diaper 101. Furthermore, since the pad pattern 8 and the diaper pattern 108 are respectively visible from the skin side and run along the front-back direction, when viewed from the skin side during wear, it is easy for the wearer to distinguish the front-back direction of the pad 1 and the diaper 101, thus making it easy to align the pad 1 with the diaper 101. Moreover, since the pad pattern 8 and the diaper pattern 108 are respectively along the front-back direction, the wearer can also easily distinguish the front-back direction of the pad 1 and the diaper 101 relative to the wearer's body. Therefore, it is easy for the wearer to place the pad on the diaper 101 for wearing.

[0136] Alternatively, the pad 1 can be used as a standalone device instead of being placed on the diaper 101. When viewed from the skin side, the pad 1 features a pad pattern 8 that is visually identifiable from the skin side. For example, when a caregiver or other person places the pad 1 under the buttocks of a lying wearer, the visual identification of the pad pattern 8 along the front-back direction makes it easy to identify the front-back direction of the pad 1 relative to the wearer's body, thus facilitating the wearing of the pad 1. In this case, when viewed from the skin side, it is preferable that the pad pattern 8 is provided in at least a portion of the overlapping area that overlaps with the absorbent core 11.

[0137] Furthermore, the pad pattern 8 and the diaper pattern 108 can be continuous patterns in the front-to-back direction or the width direction, or they can be discontinuous patterns. The diaper pattern 108 of the diaper 101 is composed of multiple (2) linear graphics separated in the width direction. Specifically, the diaper pattern 108 of the diaper 101 has lines 108a and 108a as linear graphics at its side ends in the width direction. The lines 108a and 108a are areas that are visible from the skin side as areas colored blue. Furthermore, there is an uncolored central portion (diaper pattern central portion) 108b between the two blue sides (lines 108a). The central portion 108b is an uncolored area where the color of the surface sheet 102, i.e., white, can be visually identified. Thus, when the pad pattern 8 or the diaper pattern 108 is composed of multiple graphics, the pad pattern 8 and the diaper pattern 108 are areas surrounded by the outermost edges of the multiple graphics. In this embodiment, the diaper pattern 108 is composed of two linear patterns. The front-to-back length of the diaper pattern 108 is the length from the front end to the rear end of the diaper 101. The width length of the diaper pattern 108 is the length from the side end of the pattern located on the farthest side in the width direction to the side end of the pattern located on the farthest side in the width direction. The shape of the diaper pattern 108 refers to the area enclosed by the front end, rear end, side end of the linear pattern on one side in the width direction, and side end of the linear pattern on the other side in the width direction. In the diaper pattern 108 of this embodiment, regarding the two linear patterns, the length from the end of the linear pattern on one side in the width direction to the end of the linear pattern on the other side in the width direction is defined as the width length d108 of the diaper pattern 108.

[0138] Regarding the pad pattern 8 and the diaper pattern 108, as in this embodiment, it is preferable that the maximum length d8 in the width direction of the pad pattern 8 is shorter than the maximum length d108 in the width direction of the diaper pattern 108 (d8 < d108). Figure 10As shown, in the width direction, by making the length of the pad pattern 8 of the pad 1 on the mounting side shorter than the length of the diaper pattern 108 on the diaper 108 on the mounting side, compared to the case where the length of the pad pattern 8 in the width direction is longer than the length of the diaper pattern 108 in the width direction, it is less likely to give the wearer the impression that the pad 1 must be strictly aligned with the diaper 101. For example, it is easy to give the impression that a loose alignment is sufficient, such as simply placing the pad pattern 8 inside the diaper pattern 108 in the width direction. Therefore, it is easy to align the pad 1 with the diaper 101. As a result, it is easy for the wearer to place the pad 1 on the diaper 101 and wear it.

[0139] Furthermore, it is preferable that the length d8 in the width direction of the pad pattern 8 is less than half of the length d108 in the width direction of the diaper pattern 108 (d8 ≤ d108 × 1 / 2). By having such a pad pattern 8, compared to the case where the length d8 in the width direction of the pad pattern 8 is longer than half of the length d108 in the width direction of the diaper pattern 108, it is less likely to create the impression that the pad 1 must be precisely aligned with the diaper 101, making it easier to align the pad 1 with the diaper 101. Therefore, it is easier for the wearer to place the pad 1 on the diaper 101 for wearing.

[0140] The pad pattern 8 is preferably visible from the skin side and is located on the non-skin side compared to the skin side of the skin-side sheet located closer to the skin than the absorbent core 11. In this embodiment, the pad 1 is located on the non-skin side of the surface sheet 2 located closer to the skin than the absorbent core 11. The pad pattern 8 located on the non-skin side of the surface sheet 2 is visible from the skin side of the pad 1 through the surface sheet 2. This reduces the possibility of the colorant used to set the pad pattern 8 coming into direct contact with the wearer's skin. Therefore, it reduces the possibility of color adhering to the wearer's skin and the possibility of causing adverse effects such as irritation to the wearer's skin.

[0141] Furthermore, more preferably, the pad pattern 8 is formed by a colored adhesive (hot melt adhesive) provided on the non-skin side of the surface sheet (skin side sheet) 2. During the manufacturing process of the pad 1, a colored hot melt adhesive, colored in a different color (e.g., blue) than the color of the surface sheet 2 (e.g., white), is applied to the non-skin side of the surface sheet 2 along the front-back direction. With this configuration, the pad pattern 8 can be formed, and thus, the adhesive used to bond the surface sheet 2 and the absorbent 10 can also serve as the colorant for forming the pad pattern 8, thereby simplifying the manufacturing process. In addition, when the adhesive for fixing the surface sheet 2 and the colorant for forming the pad pattern 8 are provided separately, there is a possibility that the adhesive and colorant may mix and the bonding strength may decrease. However, by using the adhesive for fixing the surface sheet 2 as the colorant for forming the pad pattern 8, the possibility of reduced bonding strength can be reduced. Furthermore, since the colored hot melt adhesive does not come into direct contact with the wearer's skin, skin irritation can be prevented.

[0142] "Colored" refers to colors other than colorless transparency and white. On the other hand, "white" includes, for example, the color represented as "N9.5" in the Munsell color system and "255, 255, 255" in the RGB color space (so-called pure white). Furthermore, colors with a color difference of less than 12 from pure white are also included within the category of white. Regarding the measurement of the color difference of white, for example, the CR-300 manufactured by Konica Minolta can be used as the color difference meter, and a C-light source (according to the International Commission on Illumination (CIE) standard) can be used as the light source for the measuring device. The diameter of the measuring window in this case is 40 mm. The color difference is ΔL, Δa, and Δb relative to the (L*a*b*) color space of the white reference plate. The color difference relative to the white reference plate can be calculated by separately measuring the lab value of the white reference plate and the lab value of the object sample. The white reference plate is set to lab0 according to (X93.19, Y95.20, Z112.28). Here, L is the luminance index value, and a and b are the chromaticity plane coordinates. If the Lab values ​​of the white reference plate are set to L0, a0, b0, and the object sample is set to L1, a1, b1, then the values ​​can be calculated using ΔL = L0 - L1, Δa = a0 - a1, and Δb = b0 - b1.

[0143] On the other hand, the diaper pattern 108 of the diaper 101 in this embodiment is formed on either the back sheet 3 or the outer sheet 4 by a colorant or the like. For the diaper pattern 108 provided on either the back sheet 3 or the outer sheet 4, the portion that does not overlap with the absorbent core 11 when viewed from the skin side can be visually identified from the skin side of the diaper 101 through the surface sheet 2. That is, at least at the front and rear ends of the diaper 101, the diaper pattern 108 along the front-to-back direction can be visually identified. Furthermore, the diaper pattern 108 is not limited to being provided on the back sheet 3 or the outer sheet 4. Similar to the pad 1, the diaper pattern 108 may be provided on the non-skin side of the surface sheet 102 compared to the skin side, or it may be provided on the skin side of the surface sheet 102.

[0144] The pad pattern 8 and the diaper pattern 108 can be set by known methods. The pad pattern 8 and the diaper pattern 108 are not limited to the colored adhesives, printing agents, etc., exemplified above. They can also be set by colored sheet components such as film sheets of different colors from the components constituting the pad 1 and the diaper 101, such as the surface sheets 2 and 102, or by compression parts.

[0145] Figure 10 The diagram shown illustrates the pad 1 and diaper 101 viewed from the skin side, with the pad 1 overlapping the center of the diaper 101 in the width direction. In this case, it is preferable that at least a portion of the pad pattern 8 and at least a portion of the diaper pattern 108 are visually recognizable, having overlapping portions in the width direction. Figure 10 As shown, when viewed from the skin side, the pad pattern 8 is visually identifiable across the entire front-to-back area of ​​the pad 1, and the diaper pattern 108 is visually identifiable at both the front and back ends of the diaper 101. Furthermore, the pad pattern 8 and the diaper pattern 108 overlap in the width direction, specifically being recessed into the inside of the diaper pattern 108. Therefore, when worn, when viewed from the skin side, it is easy for the wearer to identify the front-to-back direction of the pad 1 and the diaper 101, making it easy to align the pad 1 with the diaper 101. Consequently, it is easy for the wearer to place the pad on the diaper 101 for wearing.

[0146] The pad pattern 8 is preferably provided at at least one end of the pad 1 in the front-back direction. Therefore, when viewed from the skin side, it is easy to align the pad 1 with the diaper 101 during wear, and it is easy to place the pad 1 on the diaper 101 for wearing. Furthermore, even when the pad 1 is worn alone without being placed on the diaper 101, the wearer can easily identify the direction in which the pad 1 is placed against (laid out) on the wearer's body, thus making the wearing of the pad 1 easier.

[0147] Furthermore, if the pad pattern 8 extends along the front-to-back direction, it does not necessarily have to be a continuous straight line; it can also be a wavy line, a dotted line, a prescribed graphic, etc. Additionally, the graphics constituting the pad pattern 8 can be arranged intermittently in both the front-to-back and width directions.

[0148] The pad pattern 8 preferably has a portion that continues from one end of the pad 1 in the front-back direction to the other end. In this embodiment, the linear pattern 8 of the pad continues from the front end to the lower end of the pad 1. As a result, the front-back direction of the pad 1 relative to the wearer's body is easily visually identified, and the front-back direction of the pad 1 is easily identified relative to the front-back direction of the diaper 101. Therefore, wearing the pad 1 becomes easy.

[0149] Furthermore, the pad pattern 8 of the pad 1 is preferably located at the center of the pad 1 in at least the width direction. As a result, the center of the pad 1 in the width direction is easily identifiable not only in the front-back direction relative to the wearer's body and in the front-back direction of the pad 1 along the front-back direction relative to the diaper 101, thus making it easier to wear the pad 1.

[0150] Regarding the pad pattern 8, it is preferable that the maximum length d8 in the width direction of the pad pattern 8 is 0.5 mm or more, and is less than 10% of the maximum length L11 in the width direction of the absorbent core 11 (0.5 mm ≤ d8 ≤ L11 × 10%). By making the maximum length d8 in the width direction of the pad pattern 8 0.5 mm or more, compared to the case where the maximum length d8 in the width direction of the pad pattern 8 is shorter than 0.5 mm, the wearer can easily visually identify the pad pattern 8. In addition, by making the maximum length d8 in the width direction of the pad pattern 8 less than 10% of the maximum length L11 in the width direction of the absorbent core 11, compared to the case where the maximum length d8 in the width direction of the pad pattern 8 is longer than 10% of the maximum length L11 in the width direction of the absorbent core 11, it is easier for the wearer to identify as a pattern used to indicate the front-back position of the pad 1.

[0151] Furthermore, preferably, the absorbent core 11 has a low unit area weight portion that is lower than its surroundings. When the low unit area weight portion has a predetermined length in the front-to-back direction, the maximum length d8 of the pad pattern 8 in the width direction is shorter than the maximum length of the low unit area weight portion in the width direction. In this embodiment, the absorbent core 11 of the pad 1 has slits 11as and 11bs that extend through the thickness direction. Since the unit area weight of these slits 11as and 11bs is 0, they are low unit area weight portions in the absorbent core 11 that are lower than their surroundings. Figure 10As shown, the maximum length d8 in the width direction of the pad pattern 8 is shorter than the maximum length D11s in the width direction of the slit (d8 < D11s). In such a pad 1, the wearer can easily identify the pad pattern 8 along the front-back direction, and can easily identify the front-back direction of the pad 1 relative to the wearer's body and the front-back direction of the pad 1 relative to the diaper 101. Therefore, wearing the pad 1 becomes easy.

[0152] The pad 1 preferably has not only a pad pattern 8 that is visually identifiable from the skin side, but also a non-skin side pattern 9 that is visually identifiable from the non-skin side. This non-skin side pattern 9 preferably has a predetermined length in the front-to-back direction. For example... Figure 2 As shown, the pad 1 of this embodiment has a non-skin side pattern 9 that can be visually identified from the non-skin side. The non-skin side pattern 9 is formed by arranging multiple circles intermittently in the front-back direction, creating a pattern that runs along the front-back direction and has a predetermined length in that direction. Therefore, the wearer can easily identify the direction along the front-back direction of the pad 1 not only from the skin side of the pad but also from the non-skin side, thus facilitating the wearing of the pad 1 as a single unit and its placement on the diaper 10.

[0153] Furthermore, preferably, the pad 1 has a pair of leak-proof wall portions 6 on both sides in the width direction, and each leak-proof wall portion 6 has a leak-proof wall elastic member 7 that extends and retracts in the front-back direction. More preferably, the color of the pad pattern 8 is the same as the color of the leak-proof wall elastic member 7, and the color of the pad pattern 8 is darker than the color of the leak-proof wall elastic member 7. As a result, the wearer can easily visually identify the leak-proof wall elastic member 7 of the leak-proof wall portion 6 along the front-back direction in addition to the pad pattern 8, and can easily identify the front-back direction of the pad 1 relative to the wearer's body and the front-back direction of the pad 1 relative to the diaper 101, thus making it easier to wear the pad 1.

[0154] Whether something is "the same color" is determined by whether the user can visually identify the pattern 8 on the pad and the leak-proof elastic component 7 as the same color. Specifically, this can be determined based on the following conditions: a color difference of less than 13 when measured using a Konica Minolta CR-300 colorimeter or an equivalent device; or a deviation of less than 1 in the 24-color swatch of the Ostwald color wheel classification. Furthermore, cases that are not "the same color" are defined as "different colors."

[0155] Regarding pad pattern 8 and diaper pattern 108, preferably, as follows: Figure 12As shown, a diaper pattern 108 is provided at the front (one side) end of the diaper 101. Between the side ends (lines) 108a of the diaper pattern 108 at the front end of the diaper 101, there is a central portion (diaper pattern central portion) 108b that is a different color from the side ends 108a. In this case, it is preferable that the color of the pad pattern 8 is different from the color of the central portion 108b; more preferably, the length d8 of the pad pattern 1 at the front end of the pad 1 in the width direction is shorter than the length of the central portion 108b in the width direction. Therefore, the wearer can easily identify the pad pattern 108 relative to the diaper pattern 1. Especially when viewed from the skin side, when the pad 1 is positioned on the skin side of the diaper 101 such that the center of the diaper pattern 8 in the width direction overlaps with the center of the central portion 108b in the width direction, the pad pattern 8 is positioned in the width direction inward to be recessed into the inner side of the central portion 108b of the diaper pattern 108. Therefore, the boundaries between the side ends 108a and the central portion 108b of the diaper pattern 108, as well as the boundary between the central portion 108b and the pad pattern 8, can be visually identified. Thus, based on the boundaries formed by different colors, the wearer can easily identify the position of the pad 1 relative to the diaper 101. Furthermore, it is easy to align the position of the pad 1 relative to the diaper 101, and therefore, it is easy to place the pad 1 on the diaper 101 for wearing. Since the pad pattern 8 of this embodiment is a linear pattern arranged approximately parallel to the front-back direction, the maximum length d8 of the pad pattern 8 is approximately the same as the width length d8 at the front end of the pad pattern 8, but it is not limited to this. The maximum length d8 of the pad pattern 8 may also be different from the length in the width direction at the front end of the pad pattern 8. Furthermore, in this embodiment, the pad pattern 8 and diaper pattern 108 have the same configuration not only at the front end in the front-rear direction but also at the rear end of the pad 1 and diaper 101. However, it is also possible that only the front or only the rear side of the pad 1 and diaper 101 has such a configuration. Additionally, the "different" color can be determined using the method described above. Furthermore, in this embodiment, the diaper 101 has a central portion 108b with a different color from the side ends 108a at the front end of the diaper 101 in the width direction, but this is not a limitation. The diaper pattern 108 may also be a continuous pattern in the width direction, which does not have a central portion with a different color from the side ends, but is formed with the same color from one end to the other in the width direction of the diaper pattern 108. Similarly, the pad 1 in this embodiment is formed by a pattern that extends from one end in the width direction to the other end. However, it is also possible that the front end of the pad 1 has a central portion with a different color from the side ends between the side ends in the width direction of the diaper pad pattern 8.

[0156] In addition, as described above, it is preferable that the diaper 101 has a pair of leak-proof wall portions 106 on both sides in the width direction, and each leak-proof wall portion 106 has a side piece 105 along the front-back direction and an adhesive area (fixing portion) A101 for fixing the side piece 105 to the surface piece 102 (adjacent member) in the thickness direction. In such cases, preferably, when the pad 1 and diaper 100 are in their unfolded and stretched states, the sum of the length L1 in the width direction at the center of the pad 1 in the front-back direction and twice the maximum thickness T1 in the thickness direction of the absorbent pad 1 (T1×2) (L1+T1×2) is less than the sum of the distance L106s between the inner ends 106s in the width direction of the adhesive area A101 at the center CL2 in the front-back direction of the diaper 101 and the length H106 in the width direction from the inner end 106s of the adhesive area A101 to the inner end of the side panel 105 (L106s+H106) (refer to...). Figure 5 , Figure 7 (Refer to) (L106s+H106<L1+T1×2). In addition, the starting point 106s of the anti-leakage wall portion 106 in the width direction is also the inner end (inner end) of the adhesive area A101 in the width direction.

[0157] Figure 11 This diagram schematically shows a cross-section of the pad 1 at its central CL1 in the front-back direction, relating to the pad 1 and diaper 1 in their worn state. In the unfolded and stretched states of the pad 1 and diaper 101, when L106s + H106 < L1 + T1 × 2, if the pad 1 is placed on the skin side of the diaper 101 and the diaper 101 is worn, then... Figure 11 As shown, in the width direction, inside the leak-proof wall portion 106 of the diaper 101, and in the thickness direction, the pad 1 is located closer to the non-skin side than the inner end of the side panel 5 of the diaper 101, which is erected towards the skin side by the leak-proof wall elastic member 107. The pad 1 can easily be retracted into the inside of the leak-proof wall portion 106 of the diaper 1. Therefore, in the wearing state, the possibility of the pad 1 shifting position relative to the diaper 101 can be reduced. Even if excrement leaks from the outer side of the pad 1 in the width direction in the wearing state, since the excrement is blocked by the leak-proof wall portion 106 of the diaper 101, the possibility of excrement leaking to the outer side of the absorbent materials (pad 1 and diaper 101) can be reduced.

[0158] Furthermore, the pad 1 preferably has a straight portion SL along the front-back direction at its side end in the width direction. When the diaper 1 has a leak-proof wall portion 106, the side end of the adhesive area A101 preferably has a straight portion along the front-back direction. Also, the distance L106s between the inner ends 106s in the width direction of the adhesive area A101 at the center portion (center CL2) in the front-back direction of the diaper 101 in its unfolded and stretched state is... Figure 8 , Figure 10 (etc.) minus the length L1 in the width direction at the central part (central CL1) in the front-to-back direction of the pad 1 in its unfolded and elongated state. Figure 1 , Figure 10 The value obtained by (etc.) is preferably 0 mm or more and 20 mm or less (0 mm ≤ L106s - L1 ≤ 20 mm). Therefore, the pad 1 can be easily pulled into the inside of the leak-proof wall portion 106 of the diaper 1 along the adhesive area A101, reducing the possibility of the pad 1 shifting position relative to the diaper 1. Consequently, the possibility of discomfort or leakage of excrement caused by the inclination of the pad 1 relative to the diaper 1 can be reduced.

[0159] Regarding the straight portion SL of the pad 1 and the straight portion of the adhesive area A101 of the diaper 1, it is preferable that the value (L106s - L1) obtained by subtracting the length L1 in the width direction of the center SL2 in the front-back direction of the adhesive area A101 in the width direction from the distance (L106s) between the inner ends 106s of the adhesive area A101 in the width direction of the diaper 101, is 0 mm or more, and is shorter than the length H106 from the inner end 106s of the adhesive area A101 in the width direction of the diaper 101 to the inner end of the side panel 105 (0 mm ≤ L106s - L1 < H106). Therefore, it is easier to retract the pad 1 into the inner side of the leak-proof wall portion 106 of the diaper 1 along the adhesive area A101 of the leak-proof wall portion 106, reducing the possibility of the pad 1 shifting position relative to the diaper 1. Therefore, it can reduce the possibility of discomfort or leakage of excrement caused by the tilt of pad 1 relative to diaper 1.

[0160] Generally speaking, the longer the length L11 of the absorbent body 10 of the pad 1 in the width direction, the higher the absorbency. However, considering the shape of the body, if the length L11 is too long, it will cause discomfort to the wearer. Therefore, in this embodiment, the length L11 of the absorbent body 10 of the pad 1 in the width direction is preferably 240 mm or less. Furthermore, when the pad 1 is placed on the skin side of the diaper 101, in order to retract the absorbent body 10 of the pad 1 into the inside of the leak-proof wall portion 106 of the diaper 101 in the front-back direction, the distance (L106s) between the inner ends 106s in the width direction of the adhesive area A101 at the center SL2 in the front-back direction of the diaper 101 in the unfolded and extended state is preferably 240 mm or more. As a result, it is easy to retract the pad 1 into the inside of the leak-proof wall portion 106 of the diaper 1, and the possibility of the pad 1 shifting position relative to the diaper 1 can be reduced. Therefore, it can reduce the possibility of discomfort or leakage of excrement caused by the tilt of pad 1 relative to diaper 1.

[0161] As in this embodiment, the pad 1 has a pair of leak-proof wall portions (pad leak-proof wall portions) 6 on both sides in the width direction, and each leak-proof wall portion 6 has a leak-proof wall elastic member (pad leak-proof wall telescopic member) 7 that extends and retracts in the front-back direction. The diaper 101 has a pair of leak-proof wall portions (diaper leak-proof wall portions) 106 on both sides in the width direction, and each leak-proof wall portion 106 has a leak-proof wall elastic member (diaper leak-proof wall telescopic member) 107 that extends and retracts in the front-back direction. In this case, it is preferable that the leak-proof wall elastic member 7 of the pad 1 is colored, and the leak-proof wall elastic member 107 of the diaper 101 is colored. In addition, the determination of "colored" can be performed in the same way as described above. In addition to the pad pattern 8 and the diaper pattern 108, the wearer can also visually identify the leak-proof elastic member 7 of the pad 1 and the leak-proof elastic member 107 of the diaper 101. As a result, it is easy to identify the front-back direction of the pad 1 and the diaper 101 relative to the wearer's body, as well as the front-back direction of the pad 1 relative to the front-back direction of the diaper 101, making it easier to wear the pad 1.

[0162] Furthermore, more preferably, the color of the leak-proof elastic member 7 of the pad 1 is the same as the color of the leak-proof elastic member 107 of the diaper 101. For example, the leak-proof elastic member 7 of the pad 1 can be blue, and the leak-proof elastic member 107 of the diaper 101 can also be blue. In addition, the determination of "same color" can be performed in the same way as described above. Since the color of the leak-proof elastic member 7 is the same as the color of the leak-proof elastic member 107, the wearer can easily identify the front-back direction of the leak-proof elastic member 7 and the leak-proof elastic member 107, in addition to the pad pattern 8 and the diaper pattern 108. By visually identifying the leak-proof elastic member 7 of the pad 1 and the leak-proof elastic member 107 of the diaper 101, it is easy to identify the front-back direction of the pad 1 and the diaper 101 relative to the wearer's body, and the front-back direction of the pad 1 relative to the front-back direction of the diaper 101, making it easier to wear the pad 1.

[0163] The pad 1 and diaper 101, housed in packaging bodies 50 and 500, are respectively folded towards the skin at the bending portions F1 and F10. Therefore, the pad 1 has a front-side bending portion F1a (pad-side bending portion) closest to the center position CL1 in the front (one side) of the front-back direction, and a rear-side bending portion F1b (pad-side bending portion) closest to the center position CL1 in the rear (other side) of the front-back direction. The diaper 101 has a front-side bending portion F10a (diaper-side bending portion) closest to the center position CL2 in the front (one side) of the front-back direction, and a rear-side bending portion F10b (diaper-side bending portion) closest to the center position CL2 in the rear (other side) of the front-back direction.

[0164] Preferably, when viewed from the skin side, when the pad 1 and the diaper 101 are overlapped in such a way that the front bend of the pad F1a overlaps with the front bend of the diaper F10a, the portion having the shortest length of the diaper 101 in the width direction overlaps with the shortest length of the pad 1 in the width direction 1s. Figure 10 The pad 1 and diaper 101 overlap by overlapping the front bend F1a of the pad and the front bend F10a of the diaper. In the pad 1, the shortest part in the width direction is located in the crotch area 1m within the pad 1, which is positioned under the wearer's crotch when worn. In the diaper 101, the shortest part in the width direction is located in the crotch area Y within the diaper 101, which is positioned under the wearer's crotch when worn. (For example...) Figure 10 As shown, when viewed from the skin side, the portion where the shortest length 101s in the width direction of the diaper 101 overlaps with the portion where the shortest length 1s in the width direction of the pad 1 overlaps. When viewed from the skin side, when the pad 1 and the diaper 101 are overlapped in such a way that the front bend of the pad F1a overlaps with the front bend of the diaper F10a, the portion where the shortest length 101s in the width direction of the diaper 101 overlaps with the portion where the shortest length 1s in the width direction of the pad 1 overlaps with the portion where the shortest length 1s in the width direction of the pad 1 overlaps with the portion where the shortest length 1s in the width direction of the pad 1 overlaps with the portion where the shortest length 1s in the width direction of the pad 101 overlaps with the portion where the shortest length 1s in the width direction of the pad 1 overlaps with the portion where the shortest length 1s in the width direction of the pad 1 overlaps with the portion where the shortest length 1s in the width direction of the pad 1 overlaps with the portion where the shortest length 1s in the width direction of the pad 1 overlaps is easily designed to allow the pad 1 and the diaper 101 to be properly worn under the crotch of the wearer. Therefore, it is difficult for the wearer to feel any sense of disharmony caused by the pad 1 and diaper 101. Without any sense of disharmony, it is easy for the wearer to recognize that they are wearing the pad 1 and diaper 101 in the correct orientation.

[0165] On the other hand, it is preferable that, when viewed from the skin side, when the pad 1 and the diaper 101 are overlapped in such a way that the front side bend F1a and the back side bend F10b of the diaper overlap, the portion having the shortest length 101s in the width direction of the diaper 101 overlaps with the longest length 1n in the width direction of the pad 1. Figure 12 This diagram illustrates the overlapping state of the pad 1 and diaper 101 when viewed from the skin side, with the front bend F1a of the pad overlapping the back bend F10b of the diaper. Additionally, Figure 12This diagram also shows the state where, viewed from the skin side, the center of the pad 1 overlaps the center of the diaper 101 in the width direction. When viewed from the skin side, the state where the pad 1 overlaps the diaper 101 with the front bend F1a of the pad and the back bend F10b of the diaper is a state where the pad 1 overlaps in the opposite front-to-back direction relative to the diaper 101. In this state, as... Figure 12 As shown, because the shortest portion 101s in the width direction of the diaper 1 overlaps with the longest portion 1n in the width direction of the pad 1, it easily causes the wearer to experience a sense of disharmony. When wearing... Figure 12 When the diaper 101 and pad 1 are in the state shown, the longest part 1n of the pad 1 in the width direction is provided in the crotch area Y of the diaper 101. Therefore, the wearer may experience a sense of disharmony due to the long length of the pad 1 in the width direction. Thus, if the front-back orientation of the pad 1 and the diaper 1 is mistakenly used, the wearer may experience a sense of disharmony. Therefore, it is easier for the wearer to identify the correct wearing orientation of the pad 1 and the diaper 101.

[0166] The pad 1 and diaper 101 described above can be manufactured by the following method.

[0167] The pad 1 and the diaper 101 are manufactured by a manufacturing method having a process of setting a pad pattern 8 that can be visually recognized from the skin side on the pad 1 and a diaper pattern 108 that can be visually recognized from the skin side on the diaper 101.

[0168] The pad pattern 8 has a specified length in the front-back direction of the pad, and the diaper pattern 108 is set to have a specified length in the front-back direction of the diaper 101. The length d8 in the width direction of the pad pattern 8 is different from the length d108 in the width direction of the diaper pattern 108.

[0169] Based on the pad 1 and diaper 101 manufactured by this method, when the pad 1 is placed on the skin side of the diaper 1 for wearing, the maximum length d8 in the width direction of the pad pattern 8 provided on the pad 1 is different from the length d108 in the width direction of the diaper pattern 108 provided on the diaper 101. Therefore, the pad 1 and diaper 101 are easily visually distinguishable. Furthermore, since the pad pattern 8 and diaper pattern 108 are respectively visible from the skin side along the front-back direction, when viewed from the skin side during wear, the wearer can easily distinguish the front-back direction of the pad 1 and the diaper 101, thus making it easy to align the pad 1 with the diaper 101. Additionally, by having the pad pattern 8 and diaper pattern 108 respectively along the front-back direction, the wearer can also easily distinguish the front-back direction of the pad 1 and diaper 101 relative to the wearer's body. Therefore, the wearer can easily place the pad on the diaper 101 for wearing.

[0170] The embodiments of the present invention have been described above. The purpose of these embodiments is to facilitate understanding of the present invention, and not to limit its interpretation. Furthermore, changes or modifications can be made to the present invention without departing from its concept, and the present invention naturally includes equivalent configurations.

[0171] Explanation of reference numerals in the attached figures

[0172] 1. Absorbent pad (pad, absorbent material).

[0173] 1m lower groin area

[0174] 2. Surface sheet (skin side sheet), 3. Back sheet,

[0175] 4 outer panels, 5 side panels (leak-proof wall panels).

[0176] 6. Leak-proof wall section (leak-proof wall section).

[0177] 7. Leak-proof wall elastic components (leak-proof wall expansion components, leak-proof wall expansion components).

[0178] 8. Pad pattern,

[0179] 10 absorbers,

[0180] 11 Absorbent core,

[0181] 11a Upper absorbent core, 11b Lower absorbent core,

[0182] 12-core coated wafer,

[0183] 12a Upper core-coated sheet, 12b Lower core-coated sheet.

[0184] 50 pad packaging (absorbent pad packaging).

[0185] 51. Pad containing component,

[0186] 101 Diapers (disposable diapers, strip disposable diapers, absorbent items),

[0187] 100A Main body, 100B Hook and loop fastener section

[0188] 102 surface sheet,

[0189] 103 Back side panel,

[0190] 104 outer packaging plates,

[0191] 105 Side panel (leak-proof wall panel).

[0192] 106 Leak-proof wall section (diaper leak-proof wall section).

[0193] 107 Leak-proof wall elastic components (leak-proof wall telescopic components, diaper leak-proof wall telescopic components).

[0194] 108 diaper patterns

[0195] 110 Absorber

[0196] 111 Absorbent Core

[0197] 111a Upper absorbent core, 111b Lower absorbent core.

[0198] 112-core coated wafer,

[0199] 112a Upper core-coated sheet, 112b Lower core-coated sheet.

[0200] 500 Diaper packaging (disposable diaper packaging).

[0201] 501 Diaper receiving component,

[0202] X: front, Y: crotch, Z: rear.

Claims

1. An absorbent pad, which, in its unfolded state, has mutually orthogonal front-to-back direction, width direction, and thickness direction. The above-mentioned absorbent pads have: Absorbent core; and The skin-side sheet has a portion that, compared to the aforementioned absorbent core, is located on the skin side. The aforementioned absorbent pad is used by placing it on the skin side of a disposable diaper, characterized in that... The aforementioned absorbent pad and disposable diaper, when unfolded, have mutually orthogonal front-to-back, width, and thickness directions. The aforementioned absorbent pads have a pad pattern that can be visually identified from the side of the skin. The aforementioned pad pattern has a specified length in the aforementioned front-to-back direction. The aforementioned disposable diapers have a diaper pattern that can be visually identified from the side of the skin. The diaper pattern described above has a specified length in the aforementioned front-to-back direction. The maximum length in the width direction of the pad pattern is different from the maximum length in the width direction of the diaper pattern.

2. The absorbent pad as claimed in claim 1, characterized in that, When viewed from the skin side, when the absorbent pad is overlapped on the disposable diaper in such a way that the center of the absorbent pad in the width direction overlaps with the center of the disposable diaper in the width direction, At least a portion of the aforementioned pad pattern and at least a portion of the aforementioned diaper pattern can be visually identified respectively. The pad pattern and the diaper pattern overlap in the aforementioned width direction.

3. The absorbent pad as described in claim 1 or 2, characterized in that, The length of the pad pattern in the width direction is shorter than the length of the diaper pattern in the width direction.

4. The absorbent pad as described in claim 1 or 2, characterized in that, The aforementioned pad pattern is disposed at the end of at least one side of the aforementioned absorbent pad in the front-back direction.

5. The absorbent pad as described in claim 1 or 2, characterized in that, The aforementioned pad pattern has a portion that extends from one end of the absorbent pad in the aforementioned front-back direction to the other end.

6. The absorbent pad as described in claim 1 or 2, characterized in that, The aforementioned pad pattern is located at least in the center of the aforementioned width direction.

7. The absorbent pad as described in claim 1 or 2, characterized in that, The length of the pad pattern in the width direction is 0.5 mm or more, and is less than 10% of the maximum length of the absorbent core in the width direction.

8. The absorbent pad as described in claim 1 or 2, characterized in that, The aforementioned absorbent core has a low weight-per-unit-area portion that is lower in weight per unit area than its surroundings. The aforementioned low-weight-per-unit-area portion has a specified length in the aforementioned front-to-back direction. The maximum length of the pad pattern in the width direction is shorter than the maximum length of the low unit area weight portion in the width direction.

9. The absorbent pad as claimed in claim 1 or 2, characterized in that, The aforementioned absorbent pad has a non-skin side pattern that is visually identifiable from the non-skin side. The aforementioned non-skin-side pattern has a specified length in the aforementioned front-back direction.

10. The absorbent pad as claimed in claim 1 or 2, characterized in that, The aforementioned pad pattern is positioned on the non-skin side of the skin side sheet.

11. The absorbent pad as claimed in claim 1 or 2, characterized in that, The aforementioned pad pattern is formed by a colored adhesive applied to the non-skin side of the aforementioned skin side sheet.

12. The absorbent pad as claimed in claim 1 or 2, characterized in that, The aforementioned absorbent pad has a pair of leak-proof walls on both sides in the aforementioned width direction. The aforementioned leak-proof wall sections are each equipped with leak-proof wall telescopic members that can extend and retract in the aforementioned front-to-back directions. The color of the pad pattern is the same as the color of the leak-proof expansion joint. The color of the above-mentioned pad pattern is darker than the color of the above-mentioned leak-proof wall expansion joint.

13. The absorbent pad as claimed in claim 1 or 2, characterized in that, The length of the pad pattern in the width direction is less than half the length of the diaper pattern in the width direction.

14. The absorbent pad as claimed in claim 1 or 2, characterized in that, The aforementioned disposable diaper has a pair of leak-proof walls on both sides in the aforementioned width direction. The aforementioned leak-proof wall sections are each equipped with leak-proof wall panels along the aforementioned front-to-back direction. The disposable diaper described above has a fixing part for fixing the leak-proof wall panel to a member adjacent along the thickness direction. In both the unfolded and stretched states of the aforementioned absorbent pad and disposable diaper, The sum of the length in the width direction at the center of the absorbent pad in the front-back direction and twice the maximum length in the thickness direction of the absorbent pad is less than the sum of the distance between the inner ends of the fixing portion in the width direction at the center of the disposable diaper in the front-back direction and twice the length in the width direction from the inner end of the fixing portion to the inner end of the leak-proof wall panel.

15. The absorbent pad as claimed in claim 1 or 2, characterized in that, The aforementioned disposable diaper has a pair of leak-proof walls on both sides in the aforementioned width direction. The aforementioned leak-proof wall sections are each equipped with leak-proof wall panels along the aforementioned front-to-back direction. The disposable diaper described above has a fixing part for fixing the leak-proof wall panel to a member adjacent along the thickness direction. The side end of the aforementioned fixing part has a straight portion along the aforementioned front-rear direction. The absorbent pad described above has a straight portion along the front-rear direction at its side end in the width direction. The value obtained by subtracting the value of the distance between the inner ends of the fixing part in the width direction at the center of the front-back direction of the aforementioned disposable diaper in its unfolded and stretched state from the value of the maximum length in the width direction at the center of the front-back direction of the aforementioned absorbent pad in its unfolded and stretched state is 0 mm or more and 20 mm or less.

16. The absorbent pad as claimed in claim 1 or 2, characterized in that, The aforementioned disposable diaper has a pair of leak-proof wall sections arranged at predetermined intervals on both sides in the aforementioned width direction. The aforementioned leak-proof wall sections are each equipped with leak-proof wall panels along the aforementioned front-to-back direction. The disposable diaper described above has a fixing part for fixing the leak-proof wall panel to a member adjacent along the thickness direction. The side end of the aforementioned fixing part has a straight portion along the aforementioned front-rear direction. The absorbent core described above has a straight portion along the front-rear direction at its side end in the width direction. The value obtained by subtracting the length of the absorbent pad in the width direction at the center of the front-back direction from the inner ends of the fixing portion at the center of the front-back direction in the unfolded and stretched state of the disposable diaper is 0 mm or more, and is shorter than the length of the disposable diaper in the width direction from the inner end of the fixing portion to the inner end of the leak-proof wall panel.

17. The absorbent pad as claimed in claim 1 or 2, characterized in that, The aforementioned absorbent pad has a pair of leak-proof walls on both sides in the aforementioned width direction. The aforementioned leak-proof wall portion is equipped with a leak-proof wall expansion member that can extend and retract in the aforementioned front-to-back direction. The aforementioned disposable diaper has a pair of leak-proof walls on both sides in the aforementioned width direction. The aforementioned diaper leak-proof wall portion is equipped with a diaper leak-proof wall telescopic member that can extend and retract in the aforementioned front-back direction. The aforementioned expansion joints of the leak-proof wall are colored. The aforementioned diaper leak-proof wall telescopic component is colored.

18. The absorbent pad as claimed in claim 17, characterized in that, The color of the aforementioned leak-proof wall telescopic component is the same as the color of the aforementioned diaper leak-proof wall telescopic component.

19. The absorbent pad as claimed in claim 1 or 2, characterized in that, The absorbent pad has a side bend closest to the center position in the front-back direction on one side, and a side bend closest to the center position in the front-back direction on the other side. The aforementioned disposable diaper has a diaper-side bend on one side of the aforementioned front-back direction that is closest to the center position of the aforementioned front-back direction, and a diaper-side bend on the other side of the aforementioned front-back direction that is also closest to the center position of the aforementioned front-back direction. When viewed from the skin side, when the absorbent pad and the disposable diaper are overlapped such that the folded portion on one side of the pad overlaps with the folded portion on the other side of the diaper,... The portion of the shortest length in the width direction of the disposable diaper overlaps with the shortest length in the width direction of the absorbent pad.

20. The absorbent pad as claimed in claim 1 or 2, characterized in that, The absorbent pad has a side bend closest to the center position in the front-back direction on one side, and a side bend closest to the center position in the front-back direction on the other side. The aforementioned disposable diaper has a diaper-side bend on one side of the aforementioned front-back direction that is closest to the center position of the aforementioned front-back direction, and a diaper-side bend on the other side of the aforementioned front-back direction that is also closest to the center position of the aforementioned front-back direction. When viewed from the skin side, when the absorbent pad and the disposable diaper are overlapped such that one side of the pad's fold overlaps with the other side of the diaper's fold,... The portion of the shortest length in the width direction of the disposable diaper overlaps with the portion of the longest length in the width direction of the absorbent pad.

21. The absorbent pad as claimed in claim 1 or 2, characterized in that, The diaper pattern is provided at one end of the disposable diaper in the front-back direction. At one end of the disposable diaper in the front-back direction, the width direction of the diaper pattern has a central portion of the diaper pattern that is a different color from the side ends. The color of the pad pattern is different from the color of the center of the diaper pattern. The length of the pad pattern in the width direction at one end of the absorbent pad in the front-back direction is shorter than the length of the diaper pattern in the width direction at the center.

22. A group of absorbent articles comprising: an absorbent pad package containing an absorbent pad in a pad receiving member; and a disposable diaper package containing a disposable diaper in a diaper receiving member, characterized in that, The aforementioned absorbent pad and disposable diaper, when unfolded, have mutually orthogonal front-to-back, width, and thickness directions. The aforementioned absorbent pad has an absorbent core and a skin side sheet having a portion of the absorbent core positioned on the skin side, and has a pad pattern that can be visually identified from the skin side. The aforementioned pad pattern has a specified length in the aforementioned front-to-back direction. The aforementioned disposable diapers have a diaper pattern that can be visually identified from the side of the skin. The diaper pattern described above has a specified length in the aforementioned front-to-back direction. The length of the pad pattern in the width direction is different from the length of the diaper pattern in the width direction.

23. A method for manufacturing absorbent articles, the method for manufacturing absorbent pads and disposable diapers, The absorbent pad, when unfolded, has mutually orthogonal front-to-back, width, and thickness directions, and includes an absorbent core and a skin-side sheet having a portion of the absorbent core located on the skin side. This disposable diaper, when unfolded, has mutually orthogonal front-to-back, width, and thickness directions, characterized in that... The above-mentioned method for manufacturing absorbent articles has the following characteristics: The process of setting a pad pattern on the aforementioned absorbent pad that is visually recognizable from the side of the skin; and In the process of setting the diaper pattern on the disposable diaper as described above, the pattern can be visually recognized from the side of the skin. The aforementioned pad pattern has a specified length in the front-to-back direction of the aforementioned absorbent pad. The diaper pattern is set in such a way that it has a predetermined length in the front-to-back direction of the disposable diaper. The length of the pad pattern in the width direction is different from the length of the diaper pattern in the width direction.

Images