Absorbent article and packaging comprising the same and a packaging bag

Abstract

To provide an absorbent article and a packaging body comprising the absorbent article and a packaging bag, which allows for easy determination of whether the size of the absorbent article is appropriate for the wearer's body and enables the absorbent article to be attached to the body in the appropriate position. [Solution] The absorbent article 1 of the present invention has a dorsal marker portion 11 and a ventral marker portion 16. The dorsal marker portion 11 has a plurality of vertical marker portions 12a, 12b, 12c, and each of these vertical marker portions has a shape that is symmetrical with respect to a center line CL that bisects the absorbent article in the transverse direction. The ventral marker portion 16 has a plurality of transverse marker portion pairs 17a, 17b, 17c that are positioned symmetrically with respect to the center line CL, and the distance between these transverse marker portion pairs in the transverse direction Y is different. The vertical marker portion indicates the position where the lower end of the buttocks is located. The transverse marker portion pairs indicate the fastening positions of a pair of fastening tapes 7. The number of vertical marker portions and the number of transverse marker portion pairs are the same.

Description

Technical Field

[0001] The present invention relates to an absorbent article and a package including the absorbent article and a packaging bag.

Background Art

[0002] From the viewpoint of facilitating the operation when wearing an absorbent article, absorbent articles provided with marks for alignment with a specific body part are known. For example, Patent Document 1 discloses an absorbent article that has a skin-side mark portion visible from the skin surface side, the skin-side mark portion having a body alignment portion for alignment with the wearer's body and an article alignment portion for alignment with another absorbent article, wherein the widthwise centers of the body alignment portion and the article alignment portion are offset from each other in the width direction.

[0003] Patent Document 2 discloses a diaper that includes an absorbent main body containing an absorbent core, and a pair of fastening tabs extending laterally outward from the absorbent main body, wherein the absorbent main body is formed with a guide mark indicating a position for placing the wearer's buttocks so as to be visible from the skin surface side, and the absorbent core is at least partially constricted laterally inward at a position more ventral than the guide mark.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Patent Document 2

Summary of Invention

Problems to be Solved by the Invention

[0005] Incidentally, the size of absorbent articles is generally based on the wearer's weight. When the size of the absorbent article increases as the wearer grows, the wearer's guardian or other caregiver selects the size based on the weight-based size indication. However, the absorbent article selected in this way may not fit the wearer's body shape, and the absorbent article may be too large or too small for the wearer's body. Furthermore, even if the position is adjusted using markings as described in Patent Documents 1 and 2, the absorbent article may not be in the proper position, leading to leakage of urine and other excretions. The absorbent articles disclosed in Patent Documents 1 and 2 are insufficient in that they do not make it easy to determine whether the size of the absorbent article is appropriate for the wearer's body, nor do they make it easy to attach the absorbent article in the proper position on the body.

[0006] The present invention relates to providing an absorbent article and a packaging body comprising the same and a packaging bag, which allows for easy determination of whether the size of the absorbent article is appropriate for the wearer's body and enables the absorbent article to be attached to the body in the appropriate position. [Means for solving the problem]

[0007] The present invention relates to an absorbent article comprising an absorbent body containing an absorbent material, having a longitudinal direction extending from the wearer's abdominal side through the crotch area to the back, and a transverse direction perpendicular thereto, and comprising an inseam portion that is positioned in the crotch area when worn, an abdominal portion positioned on the wearer's abdominal side of the inseam portion, and a dorsal portion positioned on the wearer's dorsal side of the inseam portion, and a pair of fastening tapes provided on both side edges of the dorsal portion along the longitudinal direction. In one embodiment, it is preferable that the absorbent article has a dorsal marker portion that is located on the dorsal side and is visible from the skin-facing side, and a ventral marker portion that is located on the ventral side and is visible from the non-skin-facing side. In one embodiment, the dorsal marker portion preferably has a plurality of vertical marker portions arranged at intervals in the vertical direction, and each of the vertical marker portions preferably has a shape that is symmetrical with respect to a center line that bisects the absorbent article in the horizontal direction. In one embodiment, the ventral marker portion preferably has a plurality of pairs of transverse marker portions arranged symmetrically with respect to the center line, and the distance between the pairs of transverse marker portions in the transverse direction is different. In one embodiment, it is preferable that the vertical markings indicate the position where the lower end of the wearer's buttocks is located when the garment is worn. In one embodiment, it is preferable that the pair of horizontal markings indicates the fastening position of the pair of fastening tapes. In one embodiment, it is preferable that the number of vertical markers and the number of pairs of horizontal markers are the same.

[0008] The present invention also relates to a packaging body comprising the absorbent article and a packaging bag containing the absorbent article. In one embodiment, it is preferable that the packaging has markings on the surface of the packaging bag indicating that the absorbent article should be worn with the lower end of the buttocks aligned with one of the vertical markings. [Effects of the Invention]

[0009] According to the absorbent article of the present invention and the packaging comprising the same and a packaging bag, it is easy to determine whether the size of the absorbent article is appropriate for the wearer's body, and the absorbent article can be attached to the body in the appropriate position. [Brief explanation of the drawing]

[0010] [Figure 1] Figure 1 is a plan view showing the unfolded and extended state of a disposable diaper, which is one embodiment of the absorbent article of the present invention. [Figure 2] Figure 2 is a plan view showing the non-skin-facing side of the disposable diaper shown in Figure 1. [Figure 3] Figure 3 is a cross-sectional view taken along line II-II in Figure 1. [Figure 4] Figure 4 is an enlarged plan view of the dorsal marker shown in Figure 1. [Figure 5] Figure 5 is an enlarged plan view of the ventral marker shown in Figure 2. [Figure 6]Figures 6(a) to 6(c) are explanatory diagrams illustrating the method of putting on the disposable diaper shown in Figure 1. [Figure 7] Figures 7(a) to 7(c) are explanatory diagrams illustrating the method for determining the correct size for disposable diapers, as shown in Figure 1. [Figure 8] Figures 8(a) and 8(b) are equivalent to Figure 3 and show another embodiment of the dorsal marker portion according to the present invention. [Figure 9] Figure 9 is an enlarged plan view showing another embodiment of the ventral marker portion according to the present invention. [Modes for carrying out the invention]

[0011] The present invention will be described below with reference to the drawings, based on its preferred embodiments. In the following drawings, identical or similar parts are denoted by the same or similar reference numerals. The drawings are basically schematic, and the proportions of the dimensions may differ from those of reality.

[0012] Figures 1 to 7 show a disposable diaper 1 (hereinafter also simply referred to as "diaper 1"), which is one embodiment of the absorbent article of the present invention. Figure 1 shows a plan view of diaper 1 as seen from the skin-facing side. In its unfolded and extended state, diaper 1 has a longitudinal direction X that corresponds to the front-to-back direction of the wearer and extends from the wearer's abdominal side through the crotch area to the back, and a transverse direction Y that is perpendicular to the longitudinal direction X. The diaper 1 has a crotch portion C arranged at the wearer's crotch when worn, a ventral portion A arranged on the wearer's ventral side relative to the crotch portion C, and a dorsal portion B arranged on the wearer's dorsal side relative to the crotch portion C. The crotch portion C is located between the ventral portion A and the dorsal portion B in the longitudinal direction X. These ventral portion A, crotch portion C and dorsal portion B are regions obtained by equally trisecting the entire length of the diaper 1 in the longitudinal direction X, and extend continuously in the front-rear direction of the wearer. Outer end edges E1, E2 in the longitudinal direction X of each of the dorsal portion B and the ventral portion A form open ends of a waist opening through which the wearer's torso passes. These outer end edges E1, E2 in the longitudinal direction X are hereinafter also referred to as "waist-side end edges E1, E2". In the worn state, the crotch portion C has an excretory part opposing portion (not shown) arranged to face the wearer's excretory part when the diaper 1 is worn. The crotch portion C of the present embodiment includes a portion having the shortest length in the lateral direction Y in the diaper 1. As shown in Figure 1, the diaper 1 is formed symmetrically with respect to the center line CL. The center line CL is an imaginary straight line that bisects the unfolded and stretched diaper 1 shown in Figure 1 in the lateral direction Y and extends in the longitudinal direction X.

[0013] As used herein, the "unfolded and stretched state" refers to a state where the diaper 1 is brought into an unfolded state, the elastic member included in the diaper 1 is stretched, and the diaper 1 is spread out into a flat shape until the dimensions of members other than the elastic member in a plan view reach the designed dimensions, that is, until the influence of the elastic member is completely eliminated. Unless otherwise specified, the dimensions of each component of the diaper 1 described in this specification are the dimensions of the diaper 1 in the unfolded and stretched state. Further, as used herein, the "skin-facing surface" refers to the surface of the absorbent article or its constituent member (e.g., a topsheet) that is oriented toward the wearer's skin side when the absorbent article is worn, that is, the side that is relatively close to the wearer's skin. The "non-skin-facing surface" refers to the surface of the absorbent article or its constituent member that is oriented toward the side opposite to the skin side when the absorbent article is worn, that is, the side that is relatively far from the wearer's skin.

[0014] The diaper 1 includes a substantially rectangular absorbent main body 2 that is long in the longitudinal direction X, as shown in Figure 1. The absorbent main body 2 has a liquid-retaining absorbent core 23, a top sheet 21 disposed on the skin-facing surface side of the absorbent core 23, and a back sheet 22 disposed on the non-skin-facing surface side of the absorbent core 23. The absorbent core 23 extends in the longitudinal direction X and is disposed between the top sheet 21 and the back sheet 22. Each of the top sheet 21 and the back sheet 22 has a dimension larger than that of the absorbent core 23, and extends outward from the outer peripheral edge of the absorbent core 23. As shown in Figure 3, the top sheet 21 and the back sheet 22 extend outward in the transverse direction Y from both side edges along the longitudinal direction X of the absorbent core 23, and form the contour of the absorbent main body 2. The absorbent main body 2 has a shape that is long in the longitudinal direction X, with its longitudinal direction aligned with the longitudinal direction X, and extends from the back side portion B through the crotch portion C to the ventral side portion A.

[0015] The top sheet 21 covers the skin-facing surface of the absorbent core 23, and extends from the back side portion B through the crotch portion C to the ventral side portion A. As the top sheet 21, a liquid-permeable sheet can be used, and for example, a nonwoven fabric such as an air-through nonwoven fabric, an apertured nonwoven fabric with pores formed therein, a perforated film, and the like can be used. The skin-facing surface side of the top sheet 21 may have an uneven shape. For example, a plurality of protrusions can be formed in a scattered pattern on the skin-facing surface side of the top sheet 21. Alternatively, ridges and grooves extending in one direction can be formed alternately on the skin-facing surface side of the top sheet 21. For such a purpose, the top sheet 21 can also be formed using two or more layers of nonwoven fabric.

[0016] The back sheet 22 covers the non-skin-facing surface of the absorbent core 23, and extends from the back side portion B through the crotch portion C to the ventral side portion A. The back sheet 22 and the top sheet 21 have substantially the same size. Both end edges of the back sheet 22 in the longitudinal direction X coincide with both end edges of the top sheet 21 in the longitudinal direction X, respectively. Both side edges of the back sheet 22 coincide with both side edges of the top sheet 21, respectively. The peripheral edge of the back sheet 22, similarly to the top sheet 21, forms the contour of the absorbent main body 2. As the backing sheet 22, for example, a sheet that is poorly permeable to liquids or water-repellent can be used, such as a poorly permeable film or a spunbond, meltblown, or spunbond laminated nonwoven fabric. A poorly permeable film may be provided with multiple micropores to give it water vapor permeability. To further improve the feel of the absorbent article, a sheet with a good texture, such as a nonwoven fabric (outer sheet 3), may be laminated to the outer surface of the backing sheet 22.

[0017] The absorbent body 23 has the function of absorbing and retaining excretions such as urine. The absorbent body 23 extends from the dorsal side B through the crotch area C to the ventral side A. The entire surface of the absorbent body 23 facing the skin is covered with a surface sheet 21, and the entire surface not facing the skin is covered with a back sheet 22. The absorbent body 23 comprises a substantially rectangular absorbent core 23a and a core wrap sheet 23b covering the absorbent core 23a (see Figure 3). The absorbent core 23a may have at least its skin-facing surface covered with a liquid-permeable core wrap sheet 23b, or the entire surface, including the skin-facing and non-skin-facing surfaces, may be covered with the core wrap sheet 23b. The front and rear edges of the core wrap sheet 23b in the longitudinal direction X are sealed by joining opposing sheets together. The absorbent core 23a is composed of, for example, a stack of hydrophilic fibers such as cellulose including pulp, a mixed stack of hydrophilic fibers and an absorbent polymer, a deposit of an absorbent polymer, or a laminated structure in which an absorbent polymer is supported between two absorbent sheets. For the core wrap sheet 23b, for example, a thin paper made of hydrophilic fibers or a nonwoven fabric that is permeable to liquids can be used.

[0018] Diaper 1 includes an outer sheet 3 positioned on the non-skin-facing side of the absorbent body 2, i.e., the non-skin-facing side of the back sheet 22 (see Figures 2 and 3). The outer sheet 3 is continuous across the entire ventral side A, crotch area C, and dorsal side B of diaper 1, forming the non-skin-facing surface of diaper 1. The periphery of the outer sheet 3 also forms the contour of diaper 1. The outer sheet 3 can be made of nonwoven fabrics produced by various methods, resin films, etc. Examples of nonwoven fabrics include spunbond nonwoven fabrics, air-through nonwoven fabrics, and needle-punched nonwoven fabrics. The outer sheet 3 may be a single-layer structure or a laminated structure in which two or more sheets are laminated. The outer sheet 3 may also be an elastic sheet that is stretchable in the lateral direction Y, or a non-elastic sheet that is not stretchable.

[0019] As shown in Figures 1 and 3, a pair of leak-proof cuffs 40, 40 are provided on both sides of the absorbent body 2 along the longitudinal direction X, which stand upright on the side facing the wearer's skin when worn. The leak-proof cuff 40 includes a liquid-impermeable cuff-forming sheet 41 that forms the main body of the leak-proof cuff 40, and a thread-like cuff elastic member 42 fixed to the cuff-forming sheet 41. In a plan view of the diaper 1, the cuff-forming sheet 41 is in the shape of a strip extending in the longitudinal direction X, and the portion outside the inner end on the side of the center line CL is fixed to other members in the lateral direction Y, such that the inner end becomes the free end of the leak-proof cuff 40. Other members are, for example, the surface sheet 21 and / or the outer sheet 3. The part of the leak-proof cuff 40 that is fixed to other members will also be referred to below as the "cuff fixing part". The cuff elastic member 42 is fixed in an extended state in the longitudinal direction X at the free end of the cuff-forming sheet 41. When worn, the leak-proof cuff 40 stands upright at least in the crotch area C due to the contraction of the cuff elastic member 42. More specifically, the free end of the leak-proof cuff 40 stands upright with the cuff fixing portion as the base end, so as to be close to the wearer's body. This prevents urine and other excretions from flowing outward in the lateral direction Y.

[0020] As shown in Figures 1 and 2, the diaper 1 has a pair of side flap portions SF, SF extending outward in the transverse direction Y from both side edges of the absorbent body 23 along the longitudinal direction X. The side flap portions SF, SF are composed of sheet members extending outward in the transverse direction Y from both side edges of the absorbent body 23 along the longitudinal direction X. The side flap portions SF, SF include at least a cuff-forming sheet 41 and an outer sheet 3. The side flap portion SF of this embodiment is composed of a cuff-forming sheet 41, a surface sheet 21, a back sheet 22, and an outer sheet 3. These sheets are joined to each other at the extensions from both side edges of the absorbent body 23 along the longitudinal direction X by known joining means such as adhesive, heat sealing, and ultrasonic sealing.

[0021] In the diaper 1 of this embodiment, as shown in Figure 1, elastic members 45, 45 (hereinafter also referred to as "leg gather forming elastic members 45") that form leg gathers are arranged in an extended state on both sides of the diaper 1 along the longitudinal direction X, specifically on each of the pair of side flap portions SF, SF, at least in the crotch area C. These leg gather forming elastic members 45 extend in the longitudinal direction X through the crotch area C. By contracting these leg gather forming elastic members 45, leg gathers are formed on the left and right sides of the diaper 1 that are positioned around the wearer's legs, i.e., on both sides of the diaper 1 in the longitudinal direction X. In this embodiment, the leg gather forming elastic members 45 are fixed in an extended state along the longitudinal direction X between the cuff forming sheet 41 and the back sheet 22 in the side flap portion SF.

[0022] In this embodiment, the diaper 1 has waist flap portions WF, WF on the back side B that extend outward in the same direction X from the longitudinal edge of the absorbent body 23. The waist flap portion WF is composed of a sheet member that extends outward in the same direction X from the longitudinal edge of the absorbent body 23. In this embodiment, the waist flap portion WF is composed of a cuff-forming sheet 41, a surface sheet 21, a back sheet 22, and an outer sheet 3 that extend outward in the longitudinal direction X from the longitudinal edge of the absorbent body 23. These sheets are joined to each other at the portion extending from the longitudinal edge of the absorbent body 23 by known joining means such as adhesive, heat sealing, or ultrasonic sealing. The waist flap portion WF corresponds to the wearer's waist when the diaper 1 is worn.

[0023] In this embodiment, the diaper 1 has an elastic composite sheet 46 that expands and contracts in the lateral direction Y on the waist flap portion WF of the back portion B. This elastic composite sheet 46 has two sheets and a plurality of back elastic members (not shown) that extend in the lateral direction Y between the two sheets and are fixed in an extended state. The plurality of back elastic members are spaced apart in the longitudinal direction X. The elastic composite sheet 46 is positioned between the surface sheet 21 and the back sheet 22 in the waist flap portion WF, and both sides of the elastic composite sheet 46 extend outward in the lateral direction Y from the surface sheet 21 and the back sheet 22. This extended portion is positioned between the cuff forming sheet 41 and the outer sheet 3. The contraction of the elastic composite sheet 46 forms waist gathers on the waist flap portion WF of the back portion B.

[0024] The elastic members, such as the aforementioned cuff elastic member 42, leg gather forming elastic member 45, and back elastic member, are preferably made from stretchable materials such as natural rubber, polyurethane resin, foamed urethane resin, and hot-melt stretchable material, formed into thread-like (thread-like elastic) or strip-like (flat elastic) shapes.

[0025] The diaper 1 is provided with a pair of fastening tapes 7, 7 on both side edges along the longitudinal direction X of the dorsal portion B (see Figures 1 and 2). The fastening tapes 7 are arranged to extend outward in the transverse direction Y from the side of the dorsal portion B, more specifically from both side edges of the waist flap portion WF of the dorsal portion B. The end of the fastening tape 7 on the transverse direction Y side is fixed between the two sheets of the aforementioned elastic composite sheet, or between one of these sheets and the cuff-forming sheet 41. The fastening tape 7 has a fastening portion 71 at the transverse direction Y side end, i.e., the portion extending outward in the transverse direction Y from the waist flap portion WF.

[0026] On the non-skin-facing surface of the ventral portion A of the diaper 1, that is, the non-skin-facing surface of the outer sheet 3 on the ventral portion A, a landing tape 75 (see Figures 1 and 2) is provided to which a fastening tape 7 can be detachably attached. In this embodiment, the diaper 1 is fastened to the landing tape 75 by fastening the fastening tape 7, thereby forming a waist opening through which the wearer's torso passes and a pair of leg openings through which the wearer's lower limbs pass, and is then put on the wearer. Materials for fastening the fastening portion 71 and the landing tape 75 include mechanical hook-and-loop fasteners and adhesives. For example, if the fastening portion 71 is the male component of a mechanical hook-and-loop fastener, the landing tape can be made of a fibrous sheet that can engage with the male component, such as a knitted fabric or nonwoven fabric, as the female component of the mechanical hook-and-loop fastener. If the fastening portion 71 is an adhesive, the landing tape can be made of a smooth film made of synthetic resin, for example. In this embodiment, the fastening portion 71 is formed by the male component of a mechanical hook-and-loop fastener, and the landing tape 75 is formed by the female component of a mechanical hook-and-loop fastener.

[0027] Diaper 1 has a dorsal marker portion 11 that is visible from the skin-facing side (see Figures 1 and 4). At least a portion of the dorsal marker portion 11 is located on the dorsal side B. In other words, the entire dorsal marker portion 11 may be located on the dorsal side B, or a portion may be located on the dorsal side B and the remaining portion on the crotch area C. In the latter case, from the viewpoint of making the buttock alignment described later easier, preferably 50% or more, and more preferably 80% or more of the total length of the dorsal marker portion 11 in the longitudinal direction X, is located on the dorsal side B. The total length of the dorsal marker portion 11 in the longitudinal direction X is the length in the longitudinal direction X from the outer end of the longitudinal marker portion 12 located on the outermost side in the longitudinal direction X to the inner end of the longitudinal marker portion 12 located on the innermost side in the longitudinal direction X. The longitudinal marker portion 12 will be described later.

[0028] The dorsal marker portion 11 is a component or part of the diaper 1 that is at least partially colored. When the diaper 1 is viewed from the skin-facing side, the dorsal marker portion 11 exhibits a different color from the surrounding area. In this embodiment, the diaper 1 has an absorbent body 2 with a dorsal marker portion 11. The dorsal marker portion 11 in this embodiment is a colored portion of the core wrap sheet 23b that is partially colored, and is located on the skin-facing side of the absorbent core 23a on the core wrap sheet 23b (see Figures 1 and 2). This dorsal marker portion 11 is formed by partially printing on the core wrap sheet 23b which is placed between the surface sheet 21 and the absorbent core 23a (see Figures 1 and 3). In this embodiment, the dorsal marker portion 11 is a colored portion printed on the core wrap sheet 23b located on the skin-facing side of the absorbent core 23a. However, when the diaper 1 is viewed from the skin-facing side, the dorsal marker portion 11 can be seen by passing through the surface sheet 21 located on the skin-facing side of the core wrap sheet 23b and the sheets (second sheet, sub-layer sheet, etc.) located on the non-skin-facing side of the surface sheet 21.

[0029] In the back portion B of diaper 1, the back marker portion 11 and the portion other than the back marker portion 11 are different colors. For example, in the back portion B, the portion other than the back marker portion 11 is white, while the back marker portion 11 is a color other than white. The dorsal marker portion 11 is visible from the skin-facing side by having a different color from the rest of the garment, at least on the dorsal portion B. From the viewpoint of further improving visibility, it is preferable that the dorsal marker portion 11 is located between the lateral Y-inward ends of the pair of leak-proof cuffs 40, 40.

[0030] The dorsal marker portion 11 has a plurality of vertical marker portions 12a, 12b, and 12c arranged at intervals in the vertical direction X (see Figures 1 and 4). In this embodiment, the dorsal marker portion 11 has three vertical marker portions 12a, 12b, and 12c, and these vertical marker portions are intermittently arranged in the vertical direction X. Each of the vertical markers 12a, 12b, and 12c has a shape that is symmetrical with respect to the center line CL (see Figures 1 and 4). In this embodiment, the vertical markers 12a, 12b, and 12c are linear in shape extending in the horizontal direction Y and are symmetrical with respect to the center line CL. Hereinafter, the vertical markers 12a, 12b, and 12c of this embodiment will also be referred to as the "first vertical marker 12a," the "second vertical marker 12b," and the "third vertical marker 12c," respectively, from the center in the vertical direction X outward in the vertical direction X. Furthermore, the number "1" is displayed on the first vertical marker 12a, the number "2" on the second vertical marker 12b, and the number "3" on the third vertical marker 12c, adjacent to each other in the vertical direction X.

[0031] The vertical markers 12a, 12b, and 12c indicate the position where the lower end of the wearer's buttocks should be positioned when wearing the diaper, as shown in Figure 6. Anatomically, the "lower end of the buttocks" refers to the ischial tuberosity and surrounding area. The user of diaper 1 (such as a caregiver of an infant) can align the lower end of their buttocks with one of the vertical markers 12a, 12b, or 12c to adjust the wearing position in the vertical direction X. Details of this adjustment will be described later.

[0032] Diaper 1 has a ventral marker portion 16 located on the ventral side A and visible from the non-skin-facing side (see Figures 2 and 5). The entire ventral marker portion 16 is located on the ventral side A. The ventral marker portion 16 is a component or part of the diaper 1 that is at least partially colored. When the diaper 1 is viewed from the non-skin-facing side, the ventral marker portion 16 exhibits a different color from the surrounding area. In diaper 1, components other than the absorbent body 2 may have the entire ventral marker portion 16, or they may have a part of the ventral marker portion 16. In the latter case, the ventral marker portion 16 is composed of a component of the absorbent body 2 and a colored portion applied to a component other than the absorbent body 2. As an example of such a configuration, the back sheet 22 has a part of the ventral marker portion 16, and the outer sheet 3 has the remaining part of the ventral marker portion 16. In this embodiment, the ventral marker portion 16 is a landing tape 75 provided on the non-skin-facing side of the outer sheet 3, and the color of the landing tape 75 is different from the color of the outer sheet 3 (see Figures 2 and 5). That is, in diaper 1 of this embodiment, the ventral marker portion 16 is provided on components other than the absorbent body 2.

[0033] In the ventral part A of diaper 1, the ventral marker 16 and the parts other than the ventral marker 16 are different colors. For example, in the ventral part A, the parts other than the ventral marker 16 are white, and the ventral marker 16 is a color other than white. The ventral marker portion 16 is visible from the non-skin-facing side because, at least in the ventral portion A, it has a different color from the portion other than the ventral marker portion 16.

[0034] The ventral marker section 16 has multiple pairs of transverse markers positioned symmetrically with respect to the center line CL (see Figure 5). Each pair of transverse markers in this embodiment is a pair of transverse markers that includes a linear scale line printed on the landing tape and a number attached to the scale line. For example, in the embodiment shown in Figure 5, the number "1" and the pair of scale lines 17a, 17a that bear it constitute one pair of transverse markers. The ventral marker section 16 in this embodiment has three pairs of transverse markers. Hereinafter, the pair of transverse markers with the number "1" will be referred to as the "first pair of transverse markers," the pair of transverse markers with the number "2" as the "second pair of transverse markers," and the pair of transverse markers with the number "3" as the "third pair of transverse markers." Correspondingly, the horizontal mark portion 17a constituting the first pair of horizontal mark portions is also called the "first horizontal mark portion 17a," the horizontal mark portion 17b constituting the second pair of horizontal mark portions is also called the "second horizontal mark portion 17b," and the horizontal mark portion 17c constituting the third pair of horizontal mark portions is also called the "third horizontal mark portion 17c."

[0035] Multiple pairs of horizontal markers have different spacing distances between them in the lateral direction Y. Such spacing distances are the distances in the lateral direction Y between the two horizontal markers that make up a pair of horizontal markers. For example, in the embodiment shown in Figure 5, the spacing distance L6 between the first pair of horizontal markers is the distance between the first horizontal markers 17a, 17a in the lateral direction Y. In this embodiment, the ventral marker portion 16 has increasing spacing L6, L7, and L8 between the pairs of transverse marker portions in the order of the first, second, and third pairs (see Figure 5).

[0036] The pair of horizontal markings indicates the fastening positions of the pair of fastening tapes 7, 7. By aligning (overlapping) the tip or fastening portion 71 of the fastening tape 7 with the horizontal markings that make up the pair of horizontal markings, the mounting position in the lateral direction Y can be aligned. Details of this alignment will be described later.

[0037] In diaper 1, the number of vertical markings 12a, 12b, and 12c is the same as the number of pairs of horizontal markings. In this embodiment, the number of vertical markings 12a, 12b, and 12c is 3, and the number of pairs of horizontal markings (sets) is also 3. The number of vertical and horizontal marker pairs is not particularly limited, but is preferably 2 to 7, and more preferably 3 to 5.

[0038] In this embodiment, the diaper 1 can be positioned appropriately in the wearer F's height direction by using the dorsal mark 11 as a vertical alignment guide when wearing it. This point will be explained using Figure 6. When putting the diaper 1 on a wearer, first, the diaper 1 is unfolded with the skin-facing side facing upwards, and the wearer, lying on their back, is placed on the skin-facing side of the diaper 1. At this time, the user of the diaper 1 (such as a guardian of an infant) can see the dorsal mark 11 from the skin-facing side of the diaper 1 and align the lower end of the buttocks with the vertical mark 12b. After this alignment, the unfolded diaper 1 is folded in half, and the abdominal side A is placed on the wearer's abdomen. This state will hereafter also be referred to as the "abdominal wrap state". In this apron-style position, when the diaper 1 of this embodiment is properly positioned in the direction of the wearer's height, the waist-side edge E1 of the back portion B and the waist-side edge E2 of the front portion A are at approximately the same position in the direction of the wearer's height [see Figure 6(a)]. "Proper positioning in the direction of the wearer's height" means that the back and front portions of the wearer are covered by the diaper 1 as designed. In this covered state, there is no excess or deficiency in the coverage area of ​​the diaper 1 for the back and front portions of the wearer in the direction of the wearer's height. In Figure 6, when the lower end of the buttocks is aligned with the second vertical marker 12b (see Figure 6(a)), the fitting position in the height direction is appropriate.

[0039] On the other hand, as shown in Figure 6(b), when the lower end of the buttocks is aligned with the first longitudinal mark 12a, the waist-side edge E1 of the dorsal portion B is positioned above (towards the head) the waist-side edge E2 of the ventral portion A. In this state, the coverage area of ​​the dorsal portion is excessive, and the coverage area of ​​the ventral portion is insufficient. Furthermore, as shown in Figure 6(c), when the lower end of the buttocks is aligned with the third longitudinal marker 12c, the waist-side edge E1 of the dorsal portion B is located lower (towards the feet) than the waist-side edge E2 of the ventral portion A. In this state, the coverage area of ​​the dorsal portion is insufficient, and the coverage area of ​​the ventral portion is excessive. As shown in Figures 6(b) and (c), if the waist edge E1 of the dorsal portion B and the waist edge E2 of the ventral portion A are in different positions in the height direction, the user of diaper 1 can adjust the fitting position of diaper 1 in the height direction to an appropriate position by aligning the lower edge of the buttocks with another vertical mark. This allows the rise length of diaper 1 (length in the vertical direction X when folded in half) to correspond to the thickness of the body (thickness in a side view), so that diaper 1 can be fitted in a way that effectively conforms to the wearer's body shape. In this way, the user of diaper 1 can easily visually determine whether the diaper 1 is properly positioned in the height direction by checking whether the waist edge E1 of the dorsal side B and the waist edge E2 of the ventral side A are at approximately the same position in the height direction. Furthermore, the user can easily adjust the position of diaper 1 to suit the wearer's body F (body type).

[0040] Diaper 1 is put on by fastening the fastening tape 7 to the landing tape 75 after it has been placed around the waist. When putting on diaper 1 in this embodiment, the user can align the fastening portions 71 of the pair of fastening tapes 7 with the pair of horizontal markings on the ventral marking portion 16 and fasten the tapes 7 (see Figure 5). Since the spacing distances L6, L7, and L8 between pairs of horizontal markings in the lateral direction Y of the ventral marking portion 16 are different, the fastening tape 7 can be fastened at the position of the pair of horizontal markings corresponding to the wearer's waist circumference. This allows diaper 1 to be worn in the appropriate position around the wearer's waist.

[0041] The vertical markers can be used as markers corresponding to the wearer's thickness, and the pair of horizontal markers can be used as markers corresponding to the wearer's waist circumference. From the viewpoint of positioning the diaper 1 more appropriately in the height direction and the waist circumference direction, it is preferable that the vertical X position of the vertical markers 12a, 12b, and 12c, and the horizontal Y position of the pair of horizontal markers differ for each body size. This makes it easy to determine the position of the lower end of the buttocks on the diaper 1 that corresponds to the wearer's body, and the fastening position of the fastening tape 7. More specifically, the multiple vertical markers 12a, 12b, and 12c on the dorsal marker section 11 are arranged from the inside to the outside in the vertical direction X, such that the crotch length of the diaper 1 when worn decreases. Of the multiple vertical markers 12a, 12b, and 12c, the vertical marker 12a located furthest in the vertical direction X results in the longest crotch length when the diaper 1 is worn. In this case, the diaper 1 can be easily adjusted to fit a body shape with a small body thickness. Conversely, the vertical marker 12c located furthest out in the vertical direction X results in the shortest crotch length when the diaper 1 is worn. In this case, the diaper 1 can be easily adjusted to fit a body type with a larger body thickness. Therefore, in this embodiment, the crotch length of the diaper 1 can be varied according to the position of the vertical markings 12a, 12b, and 12c, and can be adapted to the thickness of the body.

[0042] Furthermore, the pairs of transverse markers in the ventral marker area 16 increase the waist circumference of the diaper 1 as the distance between the pairs of transverse markers increases, from the inside to the outside in the transverse direction Y. The multiple pairs of transverse markers in the ventral marker area 16 are arranged so that the length of the waist circumference of the diaper 1 when worn increases from the inside to the outside in the transverse direction Y. Among the multiple pairs of transverse markers, the pair of transverse markers 17a, 17a with the shortest distance between them results in the shortest waist circumference when the diaper 1 is worn. In this case, the diaper 1 when worn can be easily adjusted to fit a body type with a small waist circumference. Conversely, the pair of horizontal markers 17c, 17c with the longest distance between them results in the longest waist circumference when diaper 1 is fitted accordingly. In this case, diaper 1 can be easily fitted to a body type with a large waist circumference. Therefore, the waist circumference of the diaper 1 in this embodiment can be varied according to the position of the pair of horizontal markers, and can be made to correspond to the waist circumference of the body.

[0043] From the viewpoint of further improving the visibility of the ventral marker portion 16 when the diaper is worn around the waist, assuming that the total length of the diaper 1 in the vertical direction X is divided into 10 equal regions, the ventral marker portion 16 is located in order from the waist-side edge E2 of the ventral portion A toward the waist-side edge E1 of the dorsal portion B, preferably from the 1st to the 4th region, and more preferably from the 1st to the 3rd region.

[0044] From the viewpoint of making it easier to determine the position of the lower edge of the buttocks corresponding to the wearer's body in diaper 1, and the fastening position of the fastening tape 7, it is preferable that each pair of vertical and horizontal markings has an indication of body size. In this embodiment, the diaper 1 has the numbers "1 to 3" attached to the first to third vertical markings 12a, 12b, and 12c (see Figure 4). Also, the numbers "1 to 3" are attached to the first to third pairs of horizontal markings (see Figure 5). Since a larger body thickness tends to correlate with a larger waist circumference, it is preferable that each pair of vertical and horizontal markers have markings indicating body size such that the rise and waist circumference sizes correspond to each other. In this embodiment, both the vertical and horizontal marker sections are set to three different sizes, and the numbers "1 to 3" are assigned to correspond to these three sizes. For example, the marking on the first vertical marker section 12a where the rise is longest ("1" in this embodiment) and the marking on the first horizontal marker section pair where the waist circumference is shortest ("1" in this embodiment) are the same. This makes it easier to visually determine the position of the lower end of the buttocks corresponding to the wearer's body and the fastening position of the fastening tape 7.

[0045] In this embodiment, the diaper 1 can also use the dorsal marker portion 11 as a size indicator to determine whether the diaper itself is the correct size. When the lower edge of the buttocks is aligned with any of the first to third vertical marker portions 12a, 12b, or 12c and the diaper is worn as a wrap-around garment, if the size of the diaper 1 is appropriate for the wearer's body F, the waist-side edge E1 of the dorsal portion B and the waist-side edge E2 of the abdominal portion A will be in approximately the same position in the height direction [see Figure 7(a)]. On the other hand, when the lower end of the buttocks is aligned with the first vertical marker 12a located furthest in the vertical direction X and the diaper is placed over the waist, if the waist-side edge E2 of the abdominal part A is located higher (towards the head) than the waist-side edge E1 of the dorsal part B, it means that the size of the diaper 1 is too large for the wearer's body F1 [see Figure 7(b)]. Furthermore, when the lower end of the buttocks is aligned with the third vertical marker 12c, which is located furthest out in the vertical direction X, and the diaper is in an abdominal position, if the waist-side edge E2 of the abdominal part A is lower (towards the feet) than the waist-side edge E1 of the dorsal part B, it means that the size of the diaper 1 is too small for the wearer's body F1 [see Figure 7(c)]. In this way, the user of diaper 1 can easily determine whether the size of diaper 1 is appropriate for their body by aligning the lower edge of their buttocks with the innermost vertical mark 12a or the outermost vertical mark 12c in the vertical direction X, and by checking the position of the waist-side edges E1 and E2 of the dorsal side B and ventral side A in the direction of height. This makes it easy to determine when it is time to size up the diaper.

[0046] In diapers without a marker for the buttocks, there is a tendency to place the wearer's buttocks on the crotch area C when putting on the diaper. From the viewpoint of ensuring that the wearer's crotch area is more reliably positioned where the absorbent core 23a of the dorsal side B is located, when the total length X of the diaper 1 is divided into five equal parts and divided into 1st to 5th regions from the dorsal side B, it is preferable that the dorsal marker 11 is located within the 1st and 2nd regions. This makes it possible to further suppress leakage of excrement from the dorsal side B. Also, from the same viewpoint as above, assuming that the total length of the diaper 1 in the vertical direction X is divided into 10 equal regions, the dorsal marker portion 11 is located in the 5th to 9th region, and more preferably in the 6th to 8th region, sequentially from the waist-side edge E2 of the ventral portion A toward the waist-side edge E1 of the dorsal portion B.

[0047] In this embodiment, the vertical markers 12a, 12b, and 12c are linear in shape, extending in the horizontal direction Y (see Figure 4). In this case, the vertical markers may be continuous lines or dotted lines. From the viewpoint of improving visibility, it is preferable that the vertical markers 12a, 12b, and 12c are continuous in the horizontal direction Y. Furthermore, the vertical marker portion may be straight or may have a curved portion in part. In this embodiment, both ends of the vertical marker portion in the horizontal direction are curved outward in the vertical direction X on the back side B. This configuration follows the contour (curve) of the buttocks, thus improving the visibility of the vertical marker portion during the attachment process.

[0048] From the viewpoint of further improving the visibility of the vertical markers, it is preferable that the dimensions of each vertical marker 12a, 12b, and 12c in the dorsal marker 11 are different, and that the dimensions of the vertical markers 12a, 12b, and 12c increase from the inside to the outside in the vertical direction X. In this case, the dimensions of each vertical marker 12a, 12b, and 12c in this embodiment satisfy the following relational expression (1). First vertical mark 12a < Second vertical mark 12b < Third vertical mark 12c ... (1) Specifically, it is preferable to have the following configuration.

[0049] Each vertical marker portion 12a, 12b, and 12c has a different horizontal length W1, W2, and W3 (hereinafter also referred to as "horizontal length"; see Figure 4), and it is preferable that the horizontal length of the vertical marker portions 12a, 12b, and 12c increases from the inside to the outside of the vertical direction X. This allows the wearer to align the lower end of their buttocks with the vertical marker portion located further outward in the vertical direction X as their body size (crotch length) increases, that is, to intuitively grasp the correspondence between the vertical marker portion and body size (crotch length). In this way, aligning the lower end of the buttocks according to the wearer's body size (hereinafter also referred to as "buttocks alignment") becomes easier. The horizontal length of the vertical marker is the distance between the outer ends in the horizontal direction Y, and is the maximum length of the vertical marker in the horizontal direction Y.

[0050] From the viewpoint of making it easier to align the buttocks, it is preferable that the horizontal lengths of the vertical markings 12a, 12b, and 12c are within the following range. The horizontal length W1 (see Figure 4) of the innermost vertical marker portion 12a in the vertical direction X is preferably 40% to 90%, more preferably 50% to 85%, of the horizontal length W3 (see Figure 4) of the outermost vertical marker portion 12c in the vertical direction X. Of two adjacent vertical markers in the vertical direction X, the horizontal length of the vertical marker located inward in the vertical direction X is preferably 50% to 80%, more preferably 60% to 70%, of the horizontal length of the vertical marker located outward in the vertical direction X. In this embodiment, "two adjacent vertical markers in the vertical direction X" are the first and second vertical markers 12a, 12b, or the second and third vertical markers 12b, 12c. The difference in horizontal length between adjacent vertical markers in the vertical direction X is preferably 5 mm to 40 mm, and more preferably 5 mm to 30 mm. From the viewpoint of improving visibility, the horizontal lengths W1, W2, W3 (see Figure 4) of each vertical marker portion 12a, 12b, 12c are preferably 40 mm to 140 mm, and more preferably 60 mm to 120 mm.

[0051] The lengths L1, L2, L3 (hereinafter also referred to as "vertical length"; see Figure 4) of the individual vertical markers 12a, 12b, and 12c in the vertical direction X are different, and it is preferable that the vertical length of the vertical markers 12a, 12b, and 12c increases as you move from the inside to the outside in the vertical direction X. The vertical length of the vertical marker is the length between the outer end and the inner end in the vertical direction X (see Figure 4). In this embodiment, the vertical marker 12 is a curved line that is convex to the ventral side A in the vertical direction X, so the "outer end in the horizontal direction Y" of the vertical marker 12 is the "outer end in the vertical direction X", and the central part in the horizontal direction Y that forms the bottom of the curved line is the "inner end in the vertical direction X". From the viewpoint of making it easier to align the buttocks, the vertical lengths of the vertical markers 12a, 12b, and 12c are preferably within the following ranges. The vertical length L1 (see Figure 4) of the innermost vertical marker portion 12a in the vertical direction X is preferably 40% to 90%, more preferably 50% to 85%, of the vertical length L3 (see Figure 4) of the outermost vertical marker portion 12c in the vertical direction X. Of two adjacent vertical markers in the vertical direction X, the vertical length of the vertical marker located inward in the vertical direction X is preferably 50% to 80%, more preferably 60% to 70%, of the vertical length of the vertical marker located outward in the vertical direction X. The difference in vertical length between adjacent vertical markers in the vertical direction X is preferably 2 mm to 20 mm, and more preferably 3 mm to 15 mm. From the viewpoint of improving visibility, the vertical lengths L1, L2, L3 (see Figure 4) of each vertical marker portion 12a, 12b, 12c are preferably 7 mm to 40 mm, and more preferably 10 mm to 30 mm.

[0052] The vertical markers 12a, 12b, and 12c in this embodiment are linear in shape. The thicknesses D1, D2, and D3 (see Figure 4) of each vertical marker 12a, 12b, and 12c are different, and it is preferable that the thickness of the vertical markers 12a, 12b, and 12c increases from the inside to the outside in the vertical direction X. If the thickness of a single vertical marker is not constant, for example, if the thickness of the vertical marker changes in the horizontal direction Y, the maximum thickness is taken as the thickness of the vertical marker. From the viewpoint of making it easier to align the buttocks, it is preferable that the thickness of the vertical markings 12a, 12b, and 12c be within the following range. The thickness D1 (see Figure 4) of the innermost vertical marker portion 12a in the vertical direction X is preferably 40% to 90%, more preferably 50% to 85%, of the thickness D3 (see Figure 4) of the outermost vertical marker portion 12c in the vertical direction X. Of two adjacent vertical markers in the vertical direction X, the thickness of the vertical marker located inward in the vertical direction X is preferably 50% to 80%, more preferably 60% to 70%, of the thickness of the vertical marker located outward in the vertical direction X. The difference in thickness between adjacent vertical markers in the vertical direction X is preferably 0.5 mm to 10 mm, and more preferably 1 mm to 5 mm. From the viewpoint of improving visibility, the thicknesses D1, D2, and D3 (see Figure 4) of each vertical marker portion 12a, 12b, and 12c are preferably 0.5 mm to 15 mm, and more preferably 1 mm to 12 mm.

[0053] Multiple vertical markers may be arranged at equal intervals in the vertical direction X, or at different intervals. From the viewpoint of making buttock alignment easier, the distance (spacing) between adjacent vertical markers in the vertical direction X is preferably 3 mm or more and 30 mm or less, more preferably 5 mm or more and 15 mm or less. The distance between adjacent vertical markers in the vertical direction X is defined as the maximum distance between vertical markers in the vertical direction X.

[0054] In this embodiment, the dorsal marker portion 11 has multiple vertical marker portions 12a, 12b, and 12c whose lateral Y-outer ends are aligned in a straight line. In other words, the lateral Y-outer ends of each vertical marker portion 12a, 12b, and 12c are located on the same straight line. This configuration makes it easy to understand that the vertical marker portions are markers set according to body size.

[0055] From the viewpoint of further improving the above effects, it is preferable that the dorsal marker portion 11 has two auxiliary lines 13, 13 that connect the lateral Y-outward ends of the multiple vertical marker portions 12a, 12b, 12c (see Figure 4). In this case, the lateral Y-outward ends of the multiple vertical marker portions 12a, 12b, 12c lie on the auxiliary lines 13. From the viewpoint of further improving the visibility of the auxiliary line 13, it is preferable that the thickness of the auxiliary line 13 be within the same range as the thicknesses D1, D2, and D3 of the vertical marker sections 12a, 12b, and 12c. From the viewpoint of making hip alignment easier, it is preferable that the vertical markers 12a, 12b, and 12c and the auxiliary line 13 are different in color. In this case, the color of the vertical markers and the color of the auxiliary line 13 differ by at least 1 in the Munsell color system in terms of hue, lightness, and chroma. For example, one possible combination is that the color of each vertical marker 12a, 12b, and 12c is Munsell hue symbol 5PB (blue-violet), and the color of the auxiliary line 13 is Munsell hue symbol 5Y (yellow). In this embodiment, the auxiliary lines 13 are formed by partially printing on the constituent material of the diaper 1 (for example, the core wrap sheet 23b), similar to the vertical marker portion (backside marker portion 11).

[0056] The method of using the aforementioned vertical markers 12a, 12b, and 12c as markers can be provided to the user, for example, by displaying the method on the surface of the packaging bag containing the diaper 1. The diaper 1 of this embodiment is distributed as a package contained in a packaging bag. Users who purchase the package at a store, etc., can refer to the instructions for use displayed on the packaging bag, etc., and perform the fitting method, aligning the position of the lower end of the wearer's buttocks with any of the vertical markers 12a, 12b, or 12c. The instructions for fitting the diaper 1 displayed on the packaging bag are displayed as information shown in text, diagrams, or images.

[0057] The dorsal marker portion 11 and ventral marker portion 16 according to the present invention are not limited to the embodiments described above. Another embodiment of the dorsal marker portion 11 and ventral marker portion 16 according to the present invention will be described below. In the following, the components of the other embodiment will be described mainly in terms of components that differ from those of the embodiments shown in Figures 1 to 7, and similar components will be denoted by the same reference numerals and their description will be omitted. For components that are not specifically described, the description of the embodiments shown in Figures 1 to 7 will be applied as appropriate.

[0058] In the embodiment described above, the dorsal marker portion 11 had vertical marker portions 12a, 12b, and 12c printed on the core wrap sheet 23b on the skin-facing side of the absorbent core 23a. However, the location where the vertical marker portions 12a, 12b, and 12c are provided is not limited to this configuration. In the dorsal marking portion 11 shown in Figure 8(a), the vertical marking portion 12b is a recessed portion 26 in which the surface sheet 21 and the absorbent 23 are integrally recessed. In this case, the vertical marking portion 12b becomes a linear recessed portion 26 extending in the lateral direction Y. In the dorsal marker portion 11 shown in Figure 8(b), the vertical marker portion 12b is a colored portion printed on the core wrap sheet 23b located on the non-skin-facing side of the absorbent core 23a. In this embodiment, the vertical marker portion 12b and the non-accumulated fiber portion 24 of the absorbent core 23a where the forming material is missing overlap. As a result, the vertical marker portion 12b located on the non-skin-facing side of the absorbent core 23a is visible from the skin-facing side. When the vertical markings are colored portions printed on the components of the diaper 1, it is preferable that the components on which the vertical markings are provided are components that do not come into direct contact with the skin, as shown in Figures 1, 8(a), and 8(b). This helps to prevent direct contact between the coloring components (ink) and the skin.

[0059] The ventral marker portion 16 in the above-described embodiment had a pair of lateral marker portions including a straight scale line printed on the landing tape and a number attached to the scale line, but the pair of lateral marker portions is not limited to this form. In the ventral marker portion 16 shown in Figure 9, the pair of transverse marker portions has a transverse marker portion that includes a partially missing rectangular ring line (hereinafter also referred to as the "missing rectangular ring line") and a number attached to the missing rectangular ring line. The missing rectangular ring line has the same shape as the tip of the fastening tape 7. The first to third transverse marker portions 17a, 17b, and 17c are located at different positions in the vertical direction X, and are arranged in the vertical direction X in the order of the first to third transverse marker portions 17a, 17b, and 17c from the inside to the outside of the vertical direction X. When fastening the fastening tape 7 by aligning it with any of these first to third transverse marker portion pairs, the fastening position can be aligned with the pair of transverse marker portions by overlapping the contour of the tip of the fastening tape 7 with the missing rectangular ring line.

[0060] Although the present invention has been described above based on its preferred embodiments, the present invention is not limited in any way to the above embodiments and can be modified as appropriate without departing from the spirit of the invention. For example, the diaper 1 in the embodiment described above had a guide line 13 on the back of the marker portion 11, but it may not have a guide line 13. Furthermore, although the vertical markings 12a, 12b, and 12c in the above-described embodiment were linear in shape extending in the horizontal direction Y, they may also be rectangular or elliptical in shape extending in the horizontal direction Y. Furthermore, although the vertical markings 12a, 12b, and 12c in the above-described embodiment were linear in shape, convex toward the outer edge E2 in the vertical direction X on the ventral side A, they may also be W-shaped, mimicking the shape of the buttocks. [Explanation of Symbols]

[0061] 1. Disposable diapers (absorbent material) 2 Absorbent body 3 Exterior Seats 7 Fastening Tape 11 Dorsal marker 12a, 12b, 12c Vertical markings 13 Auxiliary lines 16 Ventral marker 17a, 17b, 17c Horizontal markers 21 Surface sheet 22 Back sheet 23 Absorbent 23a Absorbent core 23b Core Wrap Sheet 24 Non-layered fiber section 26 Recessed area 40 Leak proof cuff 41 Cuff forming sheet 42 Cuff elastic member 45 Elastic member for forming leg gathers 46 Elastic Composite Sheet 71 Fastening part 75 Landing Tape X vertical direction Y (horizontal direction) Z-axis thickness direction

Claims

1. An absorbent article having a longitudinal direction extending from the wearer's abdominal side through the crotch area to the back, and a transverse direction perpendicular thereto, and comprising an inseam portion that is positioned in the crotch area when worn, an abdominal portion positioned on the wearer's abdominal side than the inseam portion, and a dorsal portion positioned on the wearer's dorsal side than the inseam portion, comprising an absorbent body containing an absorbent material, and a pair of fastening tapes provided on both side edges of the dorsal portion along the longitudinal direction, It has at least a portion of a dorsal marker portion that is located on the dorsal side and is visible from the skin-facing side, and a ventral marker portion that is located on the ventral side and is visible from the non-skin-facing side, The dorsal marker portion has a plurality of vertical marker portions arranged at intervals in the vertical direction, and each of these vertical marker portions has a shape that is symmetrical with respect to a center line that divides the absorbent article in two equal parts in the horizontal direction. The ventral marker portion has a plurality of pairs of transverse marker portions arranged symmetrically with respect to the center line, and the distance between the pairs of transverse marker portions in the transverse direction is different for each pair. The aforementioned vertical mark indicates the position where the lower end of the wearer's buttocks is positioned when the garment is worn. The aforementioned pair of horizontal markings indicates the fastening position of the pair of fastening tapes. An absorbent article in which the number of vertical markings and the number of pairs of horizontal markings are the same.

2. The absorbent article according to claim 1, wherein the vertical marking portion is continuous in the horizontal direction.

3. The absorbent article according to claim 1 or 2, wherein each of the lateral ends of the vertical mark portion is curved toward the vertical outward direction on the back side.

4. The absorbent article according to claim 1 or 2, wherein the number of vertical markings and pairs of horizontal markings is 2 or more and 7 or less.

5. The absorbent article according to claim 4, wherein the lateral length of each of the vertical mark portions is different, and the lateral length of the vertical mark portions increases from the inside to the outside in the vertical direction.

6. The absorbent article according to claim 4, wherein the length of each of the vertical markings is different, and the length of the vertical markings increases from the inside to the outside in the vertical direction.

7. The absorbent article according to claim 4, wherein the thickness of each of the aforementioned vertical markings is different, and the thickness of the vertical markings increases from the inside to the outside in the vertical direction.

8. The absorbent article according to claim 4, wherein the dorsal marker portion is formed by the horizontally outward ends of a plurality of vertical marker portions being aligned in a straight line.

9. The absorbent article according to claim 8, wherein the dorsal marker portion has two auxiliary lines connecting the horizontally outward ends of a plurality of vertical marker portions.

10. The absorbent article according to claim 1 or 2, wherein the vertical position of the vertical marker portion and the horizontal position of the pair of horizontal marker portions differ depending on the size of the body.

11. The absorbent article according to claim 10, wherein each pair of vertical markings and horizontal markings has an indicator showing the size.

12. A packaging comprising an absorbent article according to claim 1 or 2 and a packaging bag containing the absorbent article, The packaging bag has markings on its surface indicating that the absorbent article should be worn with the lower end of the buttocks aligned with one of the vertical markings.

Images