Tape type absorbent article

Abstract

To provide an absorbent article which allows a tape-type absorbent article to be appropriately worn easily and allows excrement to be appropriately stored in an excrement storage space easily when worn.SOLUTION: An absorbent article has a space forming sheet part for forming an excrement storage space provided in a back side end part in a longitudinal direction closer to a skin side than a skin side sheet part. The sheet part is stretchable in a width direction. Both side parts in the width direction of the sheet part are joined to a member adjacent to the sheet part in a thickness direction by a weld part. A back side end part of the sheet part is fixed to a member adjacent to the sheet part in the thickness direction. An abdominal end part in the longitudinal direction of the sheet part can form an entrance to the excrement storage space, and has a pattern at a position separated from a leakage prevention sheet side end by a predetermined distance in the width direction. When a position separated from a lower end of the sheet part in the longitudinal direction to the abdominal side by a length in the longitudinal direction of the sheet part is represented as a predetermined position, the pattern is visible from the skin side, and at least a part of the pattern is provided outside the sheet part in the width direction and is provided between a back side upper end and the predetermined position in the longitudinal direction.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a tape-type absorbent article. [Background technology]

[0002] Absorbent articles such as disposable diapers are used to absorb excrement such as urine and feces. Therefore, it is preferable that excrement does not leak from the absorbent article when worn. To prevent excrement from leaking from the absorbent article, an excrement pad is known, as disclosed in Patent Document 1, which has adhesive portions attached to the back and ventral ends of three sides of the leakage prevention sheet and an opening opening toward the center of the excrement pad, making the leakage prevention sheet bag-shaped. This excrement pad can prevent excrement from leaking to the outside by guiding the excrement into the bag. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 11-19107 Summary of the Invention [Problem to be solved by the invention]

[0004] Even if an excrement pad is equipped with a bag-shaped leak-proof sheet, if it is not attached in an appropriate position relative to the wearer's body, the excrement may not be guided into the bag of the leak-proof sheet, or the excrement may leak outside the excrement pad.

[0005] The present invention has been made in consideration of the above-mentioned problems, and its purpose is to provide an absorbent article that makes it easy for a wearer to properly put on a tape-type absorbent article and that makes it easy for excrement to be properly contained in the excrement collection space when worn. [Means for solving the problem]

[0006] The main invention for achieving the above object is a tape-type absorbent article which, in an unfolded and extended state, has a longitudinal direction, a width direction, and a thickness direction which are orthogonal to one another, and which comprises a liquid-absorbent body, a skin-side sheet portion provided on the skin side of the absorbent body, and a leak-proof sheet provided on the non-skin side of the absorbent body, and which has a pair of side flap portions on both sides in the width direction of the tape-type absorbent article, and each of the pair of side flap portions has an engaging portion which can engage with the non-skin side of the tape-type absorbent article, and which has a space-forming sheet portion for forming an excrement storage space, which is provided on the skin side of the skin-side sheet portion and at an end on the back side in the longitudinal direction, and which is stretchable in the width direction, and both sides in the width direction of the space-forming sheet portion are at least mutually adjacent to the space-forming sheet portion in the thickness direction. a tape-type absorbent article in which the leak-proof sheet is joined to the space-forming sheet at a welded portion, the back end of the space-forming sheet is fixed to at least a member adjacent to the space-forming sheet in the thickness direction, the ventral end of the space-forming sheet in the longitudinal direction is capable of forming an entrance to the excrement storage space, the leak-proof sheet has a pattern printed at a position a predetermined distance away from the side end of the leak-proof sheet in the width direction, and when the predetermined position is a position in the longitudinal direction away from the lower end of the space-forming sheet toward the ventral side by the length of the space-forming sheet in the longitudinal direction, the pattern is visible when viewed from the skin side, and at least a portion of the pattern is located outside the space-forming sheet in the width direction and is located between the upper end of the back side and the predetermined position. Other features of the present invention will become apparent from the description of this specification and the accompanying drawings. [Effects of the Invention]

[0007] According to the present invention, it is possible to provide a tape-type absorbent article that is easy for a wearer to wear properly and that allows body waste to be easily accommodated in the body waste accommodation space when worn. [Brief explanation of the drawings]

[0008] [Figure 1] FIG. 2 is a plan view of the diaper 1 in an unfolded and stretched state as viewed from the skin side. [Figure 2] FIG. 2 is a plan view of the diaper 1 in an unfolded and stretched state, as viewed from the non-skin side. [Figure 3] FIG. 2 is a schematic cross-sectional view taken along the line AA in FIG. [Figure 4] FIG. 2 is a schematic cross-sectional view taken along the arrow BB in FIG. [Figure 5] FIG. 2 is an enlarged view of a portion X in FIG. [Figure 6] 1 is a diagram illustrating an excrement storage space P. FIG. [Figure 7] FIG. 2 is a diagram illustrating a welded region R. [Figure 8] 10A and 10B are diagrams illustrating modified examples of the welded region R. FIG. [Figure 9] 10A and 10B are diagrams illustrating modified examples of the welded region R. FIG. [Figure 10] FIG. 10 is a diagram illustrating the pattern M. [Figure 11] 10A and 10B are diagrams illustrating a modified diaper 100. FIG. DETAILED DESCRIPTION OF THE INVENTION

[0009] At least the following matters will become clear from the description of this specification and the accompanying drawings. (Aspect 1) A tape-type absorbent article having a longitudinal direction, a width direction, and a thickness direction which are perpendicular to one another in an unfolded and extended state, the tape-type absorbent article comprising a liquid-absorbent absorbent body, a skin-side sheet portion provided on the skin side of the absorbent body, and a leak-proof sheet provided on the non-skin side of the absorbent body, the tape-type absorbent article having a pair of side flap portions on both sides in the width direction, each of the pair of side flap portions having an engaging portion which can engage with the non-skin side of the tape-type absorbent article, a space-forming sheet portion for forming an excrement storage space provided on the skin side of the skin-side sheet portion and at an end on the back side in the longitudinal direction, the space-forming sheet portion being stretchable in the width direction, and both sides in the width direction of the space-forming sheet portion being joined at least to members adjacent to the space-forming sheet portion in the thickness direction by welding portions. the rear end of the space-forming sheet portion is fixed to at least a member adjacent to the space-forming sheet portion in the thickness direction, the ventral end of the space-forming sheet portion in the longitudinal direction is capable of forming an entrance to the excrement storage space, the leak-proof sheet has a pattern printed at a position a predetermined distance away from the side end of the leak-proof sheet in the width direction, and when a position in the longitudinal direction away from the lower end of the space-forming sheet portion to the ventral side by the length of the space-forming sheet portion in the longitudinal direction is taken as the predetermined position, the pattern is visible when viewed from the skin side, and at least a portion of the pattern is provided outside the space-forming sheet portion in the width direction and is provided between the upper end of the rear side and the predetermined position in the longitudinal direction.

[0010] According to aspect 1, when putting on a tape-type absorbent article, a person who is trying to put on a wearer can recognize the pattern that is located outside the space-forming sheet portion in the width direction and between the upper end of the back side and a predetermined position in the length direction, making it easier to recognize the position of the wearer's buttocks in relation to the excrement collection space, making it easier to put on the tape-type absorbent article properly on the wearer and to properly store excrement in the excrement collection space when wearing it.

[0011] (Aspect 2) The tape-type absorbent article of aspect 1 is characterized in that a pair of the patterns are provided spaced apart in the width direction.

[0012] According to aspect 2, the person putting on the absorbent article can easily recognize the pattern and the position of the wearer's buttocks relative to the excrement collection space when putting it on, making it easier for the wearer to wear the tape-type absorbent article properly and making it easier for excrement to be properly contained in the excrement collection space when wearing it.

[0013] (Aspect 3) A tape-type absorbent article according to aspect 2, wherein the pair of patterns are provided symmetrically with respect to the center of the tape-type absorbent article in the width direction.

[0014] According to aspect 3, when putting on the absorbent article, the person putting it on can easily recognize the pair of patterns on both sides of the wearer's body, and can more easily recognize the position of the wearer's buttocks in relation to the excrement collection space, making it easier for the wearer to put on the tape-type absorbent article properly and making it easier for excrement to be properly contained in the excrement collection space when wearing it.

[0015] (Aspect 4) The pair of patterns has a one-side pattern located on one side in the width direction and an other-side pattern located on the other side in the width direction, both side portions of the space-forming sheet portion in the width direction each have a plurality of the welded portions, the plurality of welded portions having a one-side inner welded portion located on the innermost side in the width direction on one side in the width direction and an other-side inner welded portion located on the innermost side in the width direction on the other side in the width direction, and the length between the inner end in the width direction of the one-side pattern and the inner end in the width direction of the other-side pattern is longer than the length between the inner end in the width direction of the one-side inner welded portion and the inner end in the width direction of the other-side inner welded portion.

[0016] According to aspect 4, the length between the widthwise inner edge of the pattern on one side and the widthwise inner edge of the pattern on the other side is longer than the length between the widthwise inner edge of the inner welded portion on one side and the widthwise inner edge of the inner welded portion on the other side, so that at least a portion of the pattern does not overlap with the excrement collection space when viewed in the thickness direction. Therefore, when putting on a wearer a tape-type absorbent article, even when the tape-type absorbent article is laid in an unfolded state under the wearer's buttocks, the person putting on the tape-type absorbent article can easily see the pattern, making it easier to recognize the location of the excrement collection space from the pattern and align the wearer with the excrement collection space. Furthermore, even if the color of the space-forming sheet portion changes due to the collection of excrement in the excrement collection space after wearing the tape-type absorbent article, this does not affect the visibility of the pattern. Therefore, the wearer can easily recognize the location of the excrement collection space when disposing of the tape-type absorbent article, reducing the risk of leakage of excrement contained in the excrement collection space.

[0017] (Aspect 5) The tape-type absorbent article according to any one of aspects 1 to 4, wherein the pattern is visible when viewed from the non-skin side.

[0018] According to aspect 5, when disposing of a tape-type absorbent article, the wearer or the like can easily recognize the location of the excrement collection space by viewing the pattern from the non-skin side of the tape-type absorbent article, thereby reducing the risk of excrement leaking when applying excessive force to the area corresponding to the excrement collection space when rolling or folding the tape-type absorbent article.

[0019] (Aspect 6) The tape-type absorbent article according to any one of aspects 1 to 5, wherein the width of the pattern is longer than the length of the pattern in the longitudinal direction.

[0020] According to aspect 6, the person putting on the absorbent article can easily recognize the pattern and the position of the wearer's buttocks relative to the excrement collection space. Furthermore, even if the side edges of the tape-type absorbent article are folded or shrunk in the width direction when the absorbent article is put on, at least a part of the pattern can be easily seen, making it easier for the wearer to put on the tape-type absorbent article properly and for excrement to be properly collected in the excrement collection space when the absorbent article is worn.

[0021] (Aspect 7) A tape-type absorbent article according to any one of aspects 1 to 6, characterized in that in the longitudinal direction, the longitudinal center of the pattern is located on the ventral side of the longitudinal center of the space-forming sheet portion.

[0022] According to aspect 7, when putting on the absorbent article, the person putting it on can easily recognize the position of the wearer's buttocks in relation to the excrement collection space by recognizing the pattern, making it easier for the wearer to put on the tape-type absorbent article properly and making it easier for excrement to be properly contained in the excrement collection space when wearing it.

[0023] (Aspect 8) A tape-type absorbent article according to any one of aspects 1 to 7, wherein the pattern has a portion overlapping the space-forming sheet portion in the longitudinal direction.

[0024] According to aspect 8, when putting on the absorbent article, the person putting it on can easily recognize the position of the wearer's buttocks in relation to the excrement collection space by recognizing the pattern, making it easier for the wearer to put on the tape-type absorbent article properly and making it easier for excrement to be properly contained in the excrement collection space when wearing it.

[0025] (Aspect 9) A tape-type absorbent article according to any one of aspects 1 to 8, characterized in that the longitudinal length of the pattern is shorter than the longitudinal length of the space-forming sheet portion, and the longitudinal length of the pattern is shorter than half the longitudinal length of the space-forming sheet portion.

[0026] According to aspect 9, the shorter the longitudinal length of the pattern, the easier it is to identify and indicate the position indicated by the pattern, and the pattern that identifies that position makes it easier to identify the longitudinal position of the space-forming sheet portion, so that the person putting the absorbent article on can more accurately recognize the position of the wearer's buttocks relative to the excrement collection space when putting it on, making it easier to put the tape-type absorbent article on the wearer's body with the tape-type absorbent article properly aligned. Therefore, it becomes easier to put the tape-type absorbent article on the wearer properly, and it becomes easier to properly collect excrement in the excrement collection space when wearing it.

[0027] (Aspect 10) A tape-type absorbent article according to any one of aspects 1 to 9, characterized in that the widthwise length of the pattern that does not overlap the space-forming sheet portion in the widthwise direction is longer than the widthwise length of the pattern that overlaps the space-forming sheet portion in the widthwise direction.

[0028] According to aspect 10, when a wearer is trying to put on a tape-type absorbent article, even when the unfolded tape-type absorbent article is placed under the wearer's buttocks, the person putting it on can easily see the pattern, making it easier to recognize the position of the excrement collection space from the pattern and aligning the wearer's position with the excrement collection space.

[0029] (Aspect 11) Aspect 10 is a tape-type absorbent article, characterized in that the pattern does not overlap the space-forming sheet portion in the width direction.

[0030] According to aspect 11, when putting the tape-type absorbent article on a wearer, even when the unfolded tape-type absorbent article is placed under the wearer's buttocks, the person putting it on can more easily see the pattern than when the pattern overlaps with the space-forming sheet portion in the width direction, making it easier to recognize the position of the excrement collection space from the pattern and align the wearer's position with the excrement collection space. Furthermore, even if excrement is collected in the excrement collection space after wearing and the color of the space-forming sheet portion changes, this is unlikely to affect the visibility of the pattern, making it easier for the wearer to recognize the position of the excrement collection space when disposing of the tape-type absorbent article and reducing the risk of excrement stored in the excrement collection space leaking.

[0031] (Aspect 12) A tape-type absorbent article according to any one of aspects 1 to 11, characterized in that, in the area overlapping the pattern when viewed in the thickness direction, the leak-proof sheet has a portion where the component closest to the skin is joined to the leak-proof sheet.

[0032] According to aspect 12, by joining the leakproof sheet on which the pattern is printed and the component closest to the skin, the distance between the component closest to the skin and the pattern is shortened, improving the visibility of the pattern. As a result, when putting on the tape-type absorbent article, the person trying to put it on can easily recognize the pattern when looking at the skin side of the tape-type absorbent article and can easily recognize the position of the wearer's buttocks in relation to the excrement collection space, making it easier for the wearer to wear the tape-type absorbent article properly and making it easier for excrement to be properly collected in the excrement collection space when worn.

[0033] (Aspect 13) 13. The tape-type absorbent article according to any one of aspects 1 to 12, wherein the pattern has a portion that overlaps with the engaging portion in the longitudinal direction.

[0034] According to aspect 13, when operating the engagement portion when putting on the tape-type absorbent article, the wearer can easily see the pattern and can easily recognize the position of the wearer's buttocks relative to the excrement collection space, making it easier for the wearer to put on the tape-type absorbent article properly and making it easier for excrement to be properly stored in the excrement collection space when worn.

[0035] (Aspect 14) A tape-type absorbent article according to any one of aspects 1 to 13, characterized in that the side flaps are provided on the non-skin side of the leak-proof sheet, and when viewed in the thickness direction, the pattern has a portion that overlaps with the side flaps.

[0036] According to the fourteenth aspect, it is possible to reduce the risk that the pattern will be conspicuous when worn, and to improve the aesthetic appearance of the tape-type absorbent article.

[0037] (Aspect 15) 15. The tape-type absorbent article according to any one of aspects 1 to 14, wherein the space-forming sheet portion is colored.

[0038] According to aspect 15, when putting on the absorbent article, the person putting it on can easily recognize the position of the excrement collection space and the position of the wearer's buttocks relative to the excrement collection space, making it easier for the wearer to put on the tape-type absorbent article properly and making it easier for excrement to be properly contained in the excrement collection space when wearing it.

[0039] (Aspect 16) 16. The tape-type absorbent article according to any one of aspects 1 to 15, wherein the color of the space-forming sheet portion is different from the color of the skin-side sheet portion.

[0040] According to aspect 16, when putting on the absorbent article, the person putting it on can easily recognize the position of the excrement collection space and the position of the wearer's buttocks relative to the excrement collection space, making it easier for the wearer to put on the tape-type absorbent article properly and making it easier for excrement to be properly contained in the excrement collection space when wearing it.

[0041] (Aspect 17) Aspects 17. The tape-type absorbent article of any one of Aspects 1 to 16, wherein the areas adjacent to both sides of the design in the longitudinal direction are non-printed areas where no design is printed.

[0042] According to aspect 17, the pattern is made more noticeable by the adjacent non-printed areas on both sides in the longitudinal direction, and therefore, when putting on the article, the person putting it on can easily recognize the excrement collection space by recognizing the pattern, and can easily recognize the position of the wearer's buttocks in relation to the excrement collection space, making it easier for the wearer to put on the tape-type absorbent article properly, and making it easier for excrement to be properly contained in the excrement collection space when wearing the article.

[0043] (Aspect 18) 18. The tape-type absorbent article of any one of Aspects 1 to 17, wherein the pattern is rectangular.

[0044] According to aspect 18, the person putting on the absorbent article can easily recognize the pattern when putting it on and can easily recognize the position of the wearer's buttocks relative to the excrement collection space, making it easier for the wearer to wear the tape-type absorbent article properly and for excrement to be properly contained in the excrement collection space when wearing it.

[0045] ===This embodiment=== In the following, a tape-type disposable diaper 1 for infants (hereinafter simply referred to as "diaper 1") will be described as an example of a tape-type absorbent article. However, the absorbent article is not limited to an absorbent article for infants, and may also be a tape-type absorbent article for adults. In the following, infants who wear diaper 1 and those who put diaper 1 on infants will also be referred to as "wearers, etc."

[0046] <<<Basic composition of disposable diaper 1>>> Fig. 1 is a plan view of the diaper 1 in an unfolded and stretched state as seen from the skin side. Fig. 2 is a plan view of the diaper 1 in an unfolded and stretched state as seen from the non-skin side. Fig. 3 is a schematic cross-sectional view taken along the line AA in Fig. 1. Fig. 4 is a schematic cross-sectional view taken along the line BB in Fig. 1. Fig. 5 is an enlarged view of a portion X in Fig. 1.

[0047] The unfolded state of the diaper 1 refers to the state in which the entire diaper 1 is unfolded flat. The stretched state of the diaper 1 refers to the state in which the diaper 1 is stretched to the extent that wrinkles that have occurred in the diaper 1 are substantially invisible, and the diaper 1 is stretched to the extent that the dimensions of each component constituting the diaper 1 (e.g., the outer sheet 5 described below) match or are close to the dimensions of the component alone.

[0048] In the unfolded and stretched state shown in FIG. 1 and elsewhere, the diaper 1 has a longitudinal direction, a width direction, and a thickness direction that are perpendicular to one another. From the back side in the longitudinal direction, the diaper 1 has a back waist portion 1A, a crotch portion 1C, and a ventral waist portion 1B. The thickness direction is the direction in which the components constituting the diaper 1 are layered. The side that contacts the wearer is referred to as the "skin side," and the opposite side is referred to as the "non-skin side." As shown in FIG. 1 and elsewhere, the diaper 1 has a substantially bilaterally symmetrical shape. In FIG. 1 and elsewhere, a center line CC is the center in the width direction, and a center line CL is the center in the longitudinal direction. The longitudinal direction corresponds to the "up-down direction" when worn, and the back and ventral sides in the longitudinal direction are the "upper side" and "crotch side," respectively, when worn. The side of the longitudinal center line CL is the "lower side" and "crotch side," respectively, when worn. That is, the back end and the ventral end in the longitudinal direction are the top ends in the vertical direction when worn, and the longitudinal center line CL is the bottom end (crotch) in the vertical direction when worn.

[0049] In the diaper 1 of this embodiment, the diaper 1 is divided into three equal parts in the longitudinal direction, and the dorsal-most part is designated as a dorsal waistline section 1A, the ventral-most part is designated as a ventral waistline section 1B, and the part between the dorsal waistline section 1A and the ventral waistline section 1B is designated as a crotch section 1C. In the diaper 1, the dorsal waistline section 1A is a dorsal-side member that covers the dorsal side of the wearer, the ventral waistline section 1B is a ventral-side member that covers the ventral side of the wearer, and the crotch section 1C is a member that is placed between the crotch of the wearer.

[0050] The diaper 1 comprises a liquid-absorbing absorbent body 2, a skin-side sheet portion 3 and a second sheet 7 provided on the skin side of the absorbent body 2, a leak-barrier sheet 4, an outer sheet 5, and a nonwoven fabric sheet 8 provided on the non-skin side of the absorbent body 2, leak-barrier walls 6 provided on both sides in the width direction, a back-side side flap 10A, a ventral-side side flap 10B, a target member 15, and a space-forming sheet portion 9. Each member is joined by a joining means such as a hot-melt adhesive.

[0051] The absorbent body 2 absorbs excrement such as urine and feces. The absorbent body 2 has a longitudinally long rectangular shape and is arranged across the back waistband 1A, the crotch portion 1C, and the ventral waistband 1B. The absorbent body 2 has an absorbent core 21 and a core wrap sheet 22, each having a predetermined shape, which absorb excrement such as urine.

[0052] The absorbent core 21 has a rectangular shape that is long in the longitudinal direction, as an example of a predetermined shape. The liquid-absorbent material that constitutes the absorbent core 21 can be, for example, liquid-absorbent fibers such as pulp fibers or liquid-absorbent granular materials such as superabsorbent polymers (so-called SAP). The absorbent core 21 may also contain liquid-absorbent materials other than liquid-absorbent fibers and liquid-absorbent granular materials.

[0053] The core wrap sheet 22 includes a skin-side core wrap portion 22a that covers the skin-side surface of the absorbent core 21, and a non-skin-side core wrap portion 22b that covers the non-skin-side surface of the absorbent core 21. Examples of suitable materials for the core wrap sheet 22 include tissue paper and nonwoven fabric.

[0054] The configuration of the absorbent body 2 is not limited to this. For example, the absorbent core may be an absorbent core made only of liquid-absorbent fibers such as pulp fibers, an absorbent core made of a SAP (super absorbent polymer) sheet, a combination of liquid-absorbent fibers and super absorbent polymer (SAP), or an absorbent core made of a material capable of absorbing excrement, such as other polymer compounds. The absorbent core may also be configured with multiple absorbent cores stacked in the thickness direction. Furthermore, the core wrap sheet 22 is not an essential component, and the absorbent core may be configured without the core wrap sheet 22, or may be configured to cover either the skin side or the non-skin side of the absorbent core as needed.

[0055] The skin side sheet portion 3 has a central sheet 31 and a pair of side sheets 32. The pair of side sheets 32 are sheet members different from the central sheet 31.

[0056] The central sheet 31 is a sheet member located in the widthwise center of the diaper 1. The skin-facing side of the diaper 1 is exposed on the central sheet 31, and has a portion that can contact the wearer's skin when worn. Examples of the central sheet 31 include liquid-permeable sheet members such as air-through nonwoven fabrics and spunbond nonwoven fabrics. Since the central sheet 31 contacts the wearer's skin, it is preferably made of a material that is softer and more comfortable than the side sheets 32. The central sheet 31 of this embodiment has a substantially rectangular shape. The longitudinal length of the central sheet 31 is the same as the longitudinal length of the diaper 1, and the width length of the central sheet 31 is longer than the width length of the absorbent core 2 and shorter than the width length of the leak-barrier sheet 4. The central sheet 31 has a plurality of openings 31h penetrating through its thickness. As shown in FIG. 5 and other figures, the central sheet 31 of this embodiment has a plurality of substantially circular openings 31h arranged in a staggered pattern across the entire area of ​​the central sheet 31.

[0057] A pair of side sheets 32 are provided on both widthwise edge portions. Specifically, the inner widthwise edge of each side sheet 32 ​​is provided widthwise inward of the side edge of the absorbent body 2, and the outer widthwise edge of each side sheet 32 ​​is provided widthwise outward of the side edge of the absorbent body 2. The longitudinal length of the side sheets 32 is approximately the same as the longitudinal length of the central sheet 31. Examples of the side sheets 32 include liquid-permeable or hydrophobic sheet members such as air-through nonwoven fabrics and spunbond nonwoven fabrics. The side sheets 32 of this embodiment do not have openings that penetrate through in the thickness direction, like the openings 31h provided in the central sheet 31.

[0058] When viewed in the thickness direction of the diaper 1, the inner widthwise edges of the side sheets 32 overlap the central sheet 31, while the outer widthwise edges of the side sheets 32 do not overlap the central sheet 31. When viewed in the thickness direction of the diaper 1, fastening portions 3f for fastening the central sheet 31 and the side sheets 32 are provided at the widthwise edges (outer edges) of the central sheet 31 where the central sheet 31 and the side sheets 32 overlap, and at the inner widthwise edges of the side sheets 32. The fastening portions 3f fasten the central sheet 31 and the side sheets 32 to form the skin-side sheet portion 3. Note that although the fastening portions 3f of the diaper 1 of this embodiment are welded, they may also be bonded using an adhesive such as a hot-melt adhesive.

[0059] The second sheet 7 is a sheet member that is provided closer to the skin than the absorbent body 2 and closer to the skin than the skin-side sheet portion 3. The provision of the second sheet 7 makes it easier to transfer excrement absorbed from the skin-side sheet portion 3 to the absorbent body 2, and reduces the risk of excrement once absorbed from the skin-side sheet portion 3 returning to the skin-side surface of the skin-side sheet portion 3. Examples of the second sheet 7 include liquid-permeable sheet members such as air-through nonwoven fabrics and spunbond nonwoven fabrics. The second sheet 7 is not necessarily provided.

[0060] The nonwoven fabric sheet 8 is a sheet member made of nonwoven fabric and provided on the non-skin side of the absorbent 2 and on the skin side of the leakproof sheet 4. In other words, the nonwoven fabric sheet 8 is a nonwoven fabric provided between the non-skin side core wrap portion 22b and the leakproof sheet 4. In the diaper 1, the absorbent 2 is a thick and rigid member, but by providing the nonwoven fabric sheet 8 on the non-skin side of the absorbent 2 (non-skin side core wrap portion 22b), the diaper 1 tends to feel soft to the touch from the non-skin side.

[0061] The leak-barrier sheet 4 is a liquid-impermeable sheet member provided on the non-skin side of the absorbent body 2. The leak-barrier sheet 4 of this embodiment is longer than the absorbent body 2 in both the longitudinal and transverse directions and has a shape that forms the outer shape of the diaper 1. The leak-barrier sheet 4 can be, for example, a sheet member such as a resin film, e.g., a polyethylene film.

[0062] The outer sheet 5 is a sheet member provided on the non-skin side of the leakproof sheet 4. In this embodiment, the outer sheet 5 has substantially the same size and shape as the leakproof sheet 4, and forms the outer shape of the diaper 1. The outer sheet 5 can be, for example, a flexible sheet member such as an SMS nonwoven fabric (spunbond / meltblown / spunbond nonwoven fabric).

[0063] The leakage barrier walls 6 are so-called three-dimensional gathers. The leakage barrier walls 6 are located closer to the skin than the skin-side sheet portion 3 in the thickness direction, and are located on both widthwise sides of the diaper 1. Each pair of leakage barrier walls 6 includes a leakage barrier sheet 61 and a longitudinally stretchable leakage barrier elastic member 62. Each pair of leakage barrier walls 6 includes a standing portion 6b that can stand toward the skin side and a non-standing portion 6a that cannot stand. Contraction of the leakage barrier elastic member 62 causes the standing portion 6b of the leakage barrier wall 6 to stand toward the skin side. The provision of the leakage barrier wall 6 reduces the risk of excrement leaking across the width of the diaper 1. The leakage barrier sheet 61 is a rectangular sheet member extending in the longitudinal direction, and may be a liquid-permeable or hydrophobic sheet. The leakage barrier elastic member 62 may be, for example, rubber thread, and is fixed to the leakage barrier sheet 61 with a hot-melt adhesive or the like while stretched in the longitudinal direction.

[0064] The leak barrier sheet 61 is fixed to adjacent members in the thickness direction, such as the skin-side sheet portion 3, at a longitudinal joining region s1 extending from the dorsal end to the ventral end in the longitudinal direction, and is also fixed to adjacent members in the thickness direction, such as the skin-side sheet portion 3, at joining regions s2 at both front-to-back ends inward from the joining region s1 in the width direction. These joining regions s1 and s2 each constitute a non-standing portion 6a that cannot stand up against the skin side by fixing the leak barrier sheet 61 to the skin-side sheet portion 3 (a member adjacent to the leak barrier sheet 61 in the thickness direction), and the standing portion 6b is located inward from the joining region s1 in the width direction and inward from the joining region s2 in the longitudinal direction. The non-standing portion 6a has a first non-standing portion 6a1 located outward from the standing portion 6b in the width direction and a second non-standing portion 6a2 located outward from the standing portion 6b in the longitudinal direction. In the first non-standing portion 6a1, the leak barrier wall sheet 61 is fixed to at least an adjacent member in the thickness direction by a plurality of leak barrier first fixing portions aa. In the second non-standing portion 6a2, the leak barrier wall sheet 61 is fixed to at least an adjacent member in the thickness direction by a plurality of leak barrier second fixing portions bb. In this embodiment, the leak barrier first fixing portions aa and the leak barrier second fixing portions bb are joined by welding. That is, in this embodiment, the joining regions s1 and s2 (the first non-standing portion 6a1 and the second non-standing portion 6a2) are each joined by welding. Note that the joining of the leak barrier wall sheet 61 to an adjacent member in the thickness direction in the joining regions s1 and s2 is not limited to welding. For example, ultrasonic joining or joining with an adhesive such as a hot melt adhesive may also be used.

[0065] A pair of longitudinally stretchable leg elastic members LG (e.g., rubber thread) are provided on both widthwise sides of the diaper 1, mainly in the crotch region 1C, so as to conform to the wearer's legs. Specifically, as shown in Fig. 1, in the unfolded and stretched state, the leg elastic members LG are provided widthwise outward of the leakage barrier elastic members 62. The leg elastic members LG are fixed in a longitudinally stretched state to the non-skin-facing side of the leakage barrier wall 6. Contraction of the leg elastic members LG forms so-called leg gathers, which allow the widthwise sides of the diaper 1 to fit snugly around the wearer's legs when worn, thereby preventing leakage of body waste.

[0066] The number, shape, material, etc. of the leak preventing wall elastic members 62 and the leg opening elastic members LG are not limited to those shown in Fig. 1 etc. For example, the number of each of the leak preventing wall elastic members 62 and the leg opening elastic members LG can be set as desired, and they may be made of thread-like polyurethane elastic fibers, an elastic film formed by melting a thermoplastic elastomer resin into a film, or an elastic nonwoven fabric made of elastic fibers.

[0067] Dorsal side flaps 10A are fixed to each end of the back waistband 1A in the width direction. The back side flaps 10A extend outward in the width direction and have engagement portions 11A. The back side flaps 10A can be, for example, a sheet material such as nonwoven fabric. The engagement portions 11A (e.g., male components of a hook-and-loop fastener) are fixed to the skin-facing side of the tip ends of the back side flaps 10A extending outward in the width direction from the back waistband 1A.

[0068] Belly-side side flaps 10B are fixed to each end of the ventral-side waistband portion 1B in the width direction. The ventral-side side flaps 10B extend outward in the width direction. Examples of the ventral-side side flaps 10B include sheet members such as nonwoven fabric and polyethylene.

[0069] The target member 15 is a target tape that engages with the engaging portion 11A. The target member 15 for engaging the engaging portion 11A is provided on the non-skin side of the central portion in the width direction of the abdominal side waistline portion 1B. The target member 15 has a substantially rectangular shape and is formed of, for example, nonwoven fabric.

[0070] To put the diaper 1 on a wearer (infant), the person putting the diaper 1 on the wearer first places the unfolded diaper 1 under the wearer's buttocks with the back edge of the diaper 1 tucked from the crotch to the head of the wearer while the wearer is lying on his / her back. Next, the diaper 1 is folded in half at approximately the longitudinal center (around the center line CL) with the skin-side surface facing inward so that the ventral waistline portion 1B faces the back waistline portion 1A, and the ventral waistline portion 1B is placed against the wearer's abdomen. Then, both widthwise ends of the pair of back waistline portions 1A are folded inward to engage the engaging portions 11A of the back side flaps 10A with the target members 15 on the non-skin-side surfaces of the ventral waistline portions 1B.

[0071] The engaging portion 11A and the target member 15 of the back-side side flap 10A are not limited to this. For example, the target member 15 may not be provided, and the engaging portion 11A may be directly engaged with the exterior sheet 5 of the ventral waistline portion 1B, or an adhesive tape may be provided on the back-side side flap 10A instead of the engaging portion 11A.

[0072] <<<About waste collection space>>> The diaper 1 has a space-forming sheet portion 9 at the end on the back side in the longitudinal direction for forming an excrement collection space P. The excrement collection space P is a so-called pocket that can store excrement such as feces and urine. Fig. 6 is a diagram illustrating the excrement collection space P.

[0073] Conventionally, when a wearer is lying down, particularly when the wearer is lying on their back, excrement such as feces and urine may run down the hollow of the wearer's buttocks and flow towards the back side, possibly leaking out from the back side of the diaper 1. In response to this, by providing an excrement storage space P at the end of the back side of the diaper 1 so that excrement can be stored in the excrement storage space P, the risk of excrement leaking out from the back side of the diaper 1 can be reduced.

[0074] The space-forming sheet portion 9 is provided closer to the skin than the skin-side sheet portion 3. In the diaper 1 of this embodiment, as shown in FIG. 4, it is provided closer to the skin than the skin-side sheet portion 3 and closer to the skin than the leakage-barrier wall portion 6. As shown in FIG. 1 and other figures, the space-forming sheet portion 9 is provided at the end portion on the back side in the longitudinal direction. Specifically, the space-forming sheet portion 9 is provided above (on the back side of) the back side end of the absorbent core 2 in the longitudinal direction, and extends to the same position as the back side end of the diaper 1. Note that the upper end (back side end) of the space-forming sheet portion 9 does not necessarily have to be the same as the upper end (back side end) of the diaper 1. The space-forming sheet portion 9 may be located on the back side of the longitudinal center line CL of the diaper 1, and the upper end of the space-forming sheet portion 9 may coincide with the back end of the diaper 1, or may be located on the ventral side (lower side, crotch side) of the back end of the diaper 1, with a gap between the back end of the space-forming sheet portion 9 and the back end of the diaper 1.

[0075] The space-forming sheet portion 9 is stretchable in the width direction. The space-forming sheet portion 9 of this embodiment is a substantially rectangular sheet member, with multiple sheets stacked in the thickness direction. Specifically, a nonwoven fabric sheet, a stretchable sheet, and a nonwoven fabric sheet are stacked in this order from the skin side, and the multiple components are integrated by a predetermined fixing means such as the compression portion 9a to form a sheet-like component. Examples of nonwoven fabric sheets include air-through nonwoven fabrics and spunbonded nonwoven fabrics. Examples of stretchable sheets include stretchable fibrous nonwoven fabrics manufactured by various known manufacturing methods, such as spunbonded nonwoven fabrics, air-through nonwoven fabrics, and needle-punched nonwoven fabrics made from elastic fibers made from thermoplastic elastomers, rubber, etc., and stretchable films made from polyethylene (PE), polystyrene-based elastomers (SIS, SBS), etc. It is preferable that at least a portion of the multiple components constituting the space-forming sheet portion 9 be liquid-impermeable or hydrophobic sheets. This makes it easier for excrement to remain inside the space-forming sheet portion 9 when it is absorbed into the excrement storage space P. However, the space-forming sheet portion 9 is not limited to this configuration. The sheet-like member that constitutes the space-forming sheet portion 9 may be one that is constituted by only one stretchable sheet, one that is constituted by a combination of a stretchable sheet and one or three or more nonwoven fabric sheets, or one that uses a sheet-like member that is made stretchable by sandwiching a stretchable member such as rubber thread that is stretchable in the width direction between multiple nonwoven fabric sheets. Furthermore, when the space-forming sheet portion 9 is constituted by multiple sheet-like members, the multiple sheet-like members are not limited to being fixed together by the compression portion 9a, and the multiple sheet-like members may be fixed together by any method, such as welding or using an adhesive such as a hot-melt adhesive.

[0076] In a space-forming sheet section 9 formed by stacking multiple sheets (for example, nonwoven fabric sheets, stretchable sheets, and nonwoven fabric sheets) in the thickness direction, when the space-forming sheet section 9 has multiple compressed sections 9a, it is preferable that the compressed sections 9a are arranged intermittently in both the longitudinal and width directions. By arranging the compressed sections 9a that secure the multiple sheets of the space-forming sheet section 9 intermittently in the longitudinal and width directions, it is possible to secure the multiple sheets that make up the space-forming sheet section 9 while reducing the risk of the space-forming sheet section 9 becoming excessively hard. Furthermore, regardless of which compressed section 9a is designated as a specific compressed section 9ax, it is more preferable that, among the compressed sections 9a that are closest in the longitudinal direction to the specific compressed section 9ax, the longitudinal position of the center of the adjacent compressed section 9an that is closest in the width direction is different from the longitudinal position of the center of the specific compressed section 9ax. 5, when one of the compressed portions 9a is designated as a specific compressed portion 9ax, it is preferable that the longitudinal positions of the centers cn1, cn2 of the adjacent compressed portions 9an1, 9an2 that are closest in the width direction to the specific compressed portion 9ax among the compressed portions 9a that are closest in the longitudinal direction to the specific compressed portion 9ax are different from the longitudinal position of the center cx of the specific compressed portion 9ax. This makes it easier to reduce the risk of the space forming sheet portion 9 curling up from the crotch side (lower side) toward the back side (upper side) compared to when the longitudinal position of the center cx of the specific compressed portion 9ax and the longitudinal positions of the centers cn1, cn2 of the adjacent compressed portions 9an1, 9an2 are located at the same position and multiple compressed portions 9a are arranged linearly along the width direction.

[0077] It is preferable that, as in the diaper 1 of this embodiment, the line connecting the centers of the plurality of compressed portions 9a that are adjacent to one another in the longitudinal direction, including the specific compressed portions 9ax (the imaginary two-dot chain line K in Fig. 5), is arranged in a wavy shape along the width direction. This makes it easier to reduce the risk of the space-forming sheet portion 9n turning up from the crotch side (lower side) toward the back side (upper side) compared to when the line connecting the centers of the plurality of compressed portions 9a that are adjacent to one another in the longitudinal direction, including the specific compressed portions 9ax, is a straight line along the width direction (a straight line parallel to the width direction).

[0078] The back end Q in the longitudinal direction and both widthwise side ends R of the space forming sheet portion 9 are fixed to at least members adjacent to the space forming sheet portion 9 in the thickness direction, and the ventral end of the space forming sheet portion 9 in the longitudinal direction can form an entrance to the excrement collection space P. In other words, the excrement collection space P formed by the approximately rectangular space forming sheet portion 9 becomes a bag-like pocket when the both widthwise sides and three sides of the back side are closed and the ventral side (crotch side) in the longitudinal direction is left open. Furthermore, because the space forming sheet portion 9 is stretchable in the width direction, the entrance to the excrement collection space P tends to open wide due to the contraction of the space forming sheet portion 9 in the width direction when worn, making it easier to collect excrement in the excrement collection space P.

[0079] In Figure 6, at the back end Q of the space-forming sheet portion 9, the area where the space-forming sheet portion 9 is fixed to adjacent members in the thickness direction (central sheet 31, leak-proof wall sheet 61) with adhesive or the like is shown by a diagonal line slanting downwards to the left, and the area where the space-forming sheet portion 9 is not fixed to adjacent members in the thickness direction and is a bag-shaped space (excrement storage space P) is shown by a diagonal line slanting downwards to the right.

[0080] The rear end Q of the space-forming sheet portion 9 of the diaper 1 of this embodiment is fixed to the skin-side sheet portion 3 and the leak-barrier sheet 61, which are adjacent members in the thickness direction. The end Q of the diaper 1 is fixed with an adhesive such as a hot-melt adhesive. The adhesive at the rear end Q of the space-forming sheet portion 9 may be applied without gaps over the entire area of ​​the end Q, or may be applied in any application pattern such as an Ω pattern or a spiral pattern. The fixing of the rear end Q of the space-forming sheet portion 9 is not limited to using an adhesive. For example, it may be fixed to a member adjacent to the space-forming sheet portion 9 in the thickness direction or to one or more members overlapping the space-forming sheet portion 9 in the thickness direction by compression (crimping) or welding.

[0081] The widthwise side edges R, R of the space-forming sheet portion 9 of the diaper 1 of this embodiment are joined by multiple welded portions r to multiple members overlapping the space-forming sheet portion 9 in the thickness direction. The welded portions r are intended to secure the space-forming sheet portion 9 to the members overlapping the space-forming sheet portion 9 in the thickness direction. Therefore, the welded portions r are welded portions provided in the portions overlapping the space-forming sheet portion 9 when viewed in the thickness direction of the diaper 1. Welded portions outside the space-forming sheet portion 9 are not considered to be "welded portions r" for securing the space-forming sheet portion 9 to the members overlapping the space-forming sheet portion 9 in the thickness direction. The welded portions r of this embodiment are substantially circular, and weld-join the space-forming sheet portion 9, the leak-barrier wall sheet 61, the leak-barrier sheet 4, and the exterior sheet 5. For convenience, the welded portions r are shown solid in FIGS. 5 and 6 .

[0082] The region of the side edge R in the width direction where the multiple welded portions r are provided is also referred to as the welded region R. The welded region R is the region where the space-forming sheet portion 9 is fixed to the diaper 1, and refers to the region where the space-forming sheet portion 9 and a member overlapping the space-forming sheet portion 9 in the thickness direction are fixed. Therefore, as shown in FIG. 7A etc., the welded region R is provided in the region overlapping the space-forming sheet portion 9 when viewing the diaper 1 in the thickness direction, and the portion where the member of the diaper 1 outside the space-forming sheet portion 9 is welded in the thickness direction does not fall under the welded region R. Fig. 7 is a diagram illustrating the welded region R. For convenience, Fig. 7A shows part X in Fig. 1, omitting the compressed part 9a of the space forming sheet part 9 and the like. Fig. 7B is an enlarged view of part Y in Fig. 7A.

[0083] 7A and other figures, the welded region R in this embodiment has a rectangular shape, and a plurality of welded parts r are provided over substantially the entire area of ​​the rectangular welded region R. The welded region R can be set as follows. First, as shown in Figure 7B, when viewing the diaper 1 in the thickness direction, in the region where the space-forming sheet portion 9 overlaps with the member on the non-skin side of the space-forming sheet portion 9, an imaginary line La is defined along the longitudinal direction at the widthwise most one-side end ra of the welded portion r provided on the widthwise most one side, an imaginary line Lb is defined along the longitudinal direction at the widthwise most other-side end rb of the welded portion r provided on the widthwise most other side, an imaginary line Lc is defined along the width direction at the widthwise most dorsal end rc of the welded portion r provided on the dorsal most (upper) side in the longitudinal direction, and an imaginary line Ld is defined along the width direction at the widthwise most ventral end rd of the welded portion r provided on the longitudinal most ventral (lower) side. In this embodiment, the widthwise most end ra of the welded portion r provided on the widthwise most side, the backmost end rc of the welded portion r provided on the backmost side in the longitudinal direction, and the longitudinal most ventral end rd of the welded portion r provided on the ventral most side (lower side) in the longitudinal direction are respectively the widthwise most end, the backmost end in the longitudinal direction, and the ventral most end in the longitudinal direction of the space forming sheet portion 9, and therefore the imaginary straight lines La, Lc, and Ld are respectively the widthwise most end, the backmost end in the longitudinal direction, and the ventral most end in the longitudinal direction of the space forming sheet portion 9. The rectangular region enclosed by the imaginary straight lines La, Lb, Lc, and Ld is defined as the welded region R.

[0084] The welded portions r that fix the space forming sheet portion 9 to the multiple members (side sheet 32, etc.) are not limited to this. The shape of the welded portions r is not limited to a circle, and they can be any shape such as an oval, a rectangle, a polygon, etc. The number of welded portions r can be set as desired, and there may be multiple welded portions r or there may be only one welded portion r.

[0085] The arrangement of the multiple welded portions r can be set arbitrarily. The multiple welded portions r may be arranged regularly and uniformly, or irregularly and non-uniformly. For example, if the welded portions r are not clearly provided over the entire rectangular area, the welded region R can be set to the following range. FIG. 8 is a diagram illustrating a modified example of the welded region R. FIG. 8A shows a portion corresponding to portion X in FIG. 1, and differs from the diaper 1 of this embodiment in the arrangement of the welded portions r for fixing the space-forming sheet portion 9. FIG. 8B is an enlarged view of portion Z in FIG. 8A.

[0086] In the modified example shown in Figures 8A and 8B, the welded portions r are irregularly arranged. Even in this case, as shown in Figure 8B, when viewed in the thickness direction of the diaper 1, in the region where the space-forming sheet portion 9 overlaps with the member on the non-skin side of the space-forming sheet portion 9, an imaginary line La is defined along the longitudinal direction at the widthwise most one-side end ra of the welded portion r provided on the widthwise most one-side side; an imaginary line Lb is defined along the longitudinal direction at the widthwise most other-side end rb of the welded portion r provided on the widthwise most other-side side; an imaginary line Lc is defined along the width direction at the widthwise most dorsal end rc of the welded portion r provided on the dorsal most (upper) side in the longitudinal direction; and an imaginary line Ld is defined along the width direction at the widthwise most ventral end rd of the welded portion r provided on the ventral most (lower) side in the longitudinal direction. The rectangular region enclosed by the imaginary lines La, Lb, Lc, and Ld is defined as the welded region R. In Figure 8B, the welded region R is indicated by hatching.

[0087] As shown in Fig. 8A, when the welded portions r are irregularly arranged and the area where the welded portions r are arranged is uneven, the welded region R may be set as follows. Fig. 9 is a diagram illustrating a modified example of the welded region R, and is an enlarged view of portion Z in Fig. 8A. In Fig. 9, the welded region R is indicated by hatching. First, as shown in FIG. 9 , let us define an imaginary line La along the longitudinal direction at the width-most edge ra of the width-most welded portion r located on one side of the width, an imaginary line Lb along the longitudinal direction at the width-most edge rb of the width-most welded portion r located on the other side of the width, an imaginary line Lc along the width direction at the dorsal-most edge rc of the longitudinally-most (upper) welded portion r, and an imaginary line Ld along the width direction at the longitudinally-most edge rd of the longitudinally-most (lower) welded portion r. The area between adjacent imaginary lines La and Lb along the longitudinal direction is divided into four, and the area between adjacent imaginary lines Lc and Ld along the width direction is also divided into four, thereby defining 16 regions. The region surrounded by imaginary lines La, Lb, Lc, and Ld where the welded portion r exists may be defined as welded region R.

[0088] As described above, the diaper 1 is a tape-type disposable diaper comprising a liquid-absorbing absorbent core 2, a skin-side sheet portion 3 provided on the skin side of the absorbent core 2, and a leak-proof sheet 4 provided on the non-skin side of the absorbent core 2, and has a pair of back-side side flaps 10A on both sides in the width direction of the diaper 1. Each of the pair of back-side side flaps 10A has an engagement portion 11A that can engage with the non-skin side of the diaper 1. The diaper 1 has a space-forming sheet portion 9 for forming an excrement collection space P, which is provided on the skin side of the skin-side sheet portion 3 and at the end on the back side in the longitudinal direction. The space-forming sheet portion 9 is stretchable in the width direction, and as shown in FIG. 6, both side portions (R) in the width direction of the space-forming sheet portion 9 are joined at welding portions r to at least members adjacent to the space-forming sheet portion 9 in the thickness direction, and the end Q on the back side of the space-forming sheet portion 9 is fixed to at least members adjacent to the space-forming sheet portion 9 in the thickness direction, and the end on the ventral side in the longitudinal direction of the space-forming sheet portion 9 can form an entrance to the excrement collection space P. The leak-barrier sheet 4 has a pattern M printed at a position a predetermined distance in the width direction from the side edge 4e of the leak-barrier sheet 4. The pattern M is visible when viewed from the skin side. The part printed on the leak-barrier sheet 4 that is visible when viewed from the skin side of the diaper 1 is referred to as "pattern M," and the area on the leak-barrier sheet 4 where no pattern is printed is referred to as non-printed area N. Fig. 10 is a diagram illustrating the pattern M. As shown in Fig. 10, at least a part of the pattern M is provided outside the space-forming sheet portion 9 in the width direction, and is provided between the upper end of the back side of the diaper 1 and the predetermined position SP in the longitudinal direction.

[0089] The "predetermined position SP" is a position in the longitudinal direction of the diaper 1 that is away from the lower end of the space-forming sheet portion 9 toward the ventral side by the length L9 of the space-forming sheet portion 9. In other words, the predetermined position SP is a position that is away from the back-side end of the space-forming sheet portion 9 (the upper end of the back-side of the diaper 1) toward the ventral side by twice the length L9 of the space-forming sheet portion 9 in the longitudinal direction (L9 × 2).

[0090] 10, the pattern M of the diaper 1 of this embodiment is provided widthwise inward from the side edge 4e of the leak-barrier sheet 4, and is provided a predetermined distance widthwise inward from the side edge 4e of the leak-barrier sheet 4. Furthermore, the pattern M is provided longitudinally between the upper end of the back side of the diaper 1 and a predetermined position SP, and is provided above (on the back side) the lower end of the space-forming sheet portion 9.

[0091] When the diaper 1 is a tape-type disposable diaper, wearing the diaper 1 properly makes it easier to properly store excrement in the excrement storage space P, thereby reducing the risk of excrement leaking from the diaper 1. For example, when the diaper 1 is worn, if the wearer's buttocks cover the entire excrement storage space P and the excrement storage space P is crushed by the wearer's buttocks, it becomes difficult for excrement to be stored in the excrement storage space P. Therefore, it is preferable that the wearer wear the diaper in such a way that the wearer's buttocks do not cover the entire space forming sheet portion 9 (excrement storage space P) and do not crush it.

[0092] The diaper 1 includes the pattern M, which is provided widthwise outboard of the space-forming sheet portion 9 and between the upper end of the back side in the longitudinal direction and the predetermined position SP. Therefore, even when the back end of the diaper 1 is inserted from the crotch area toward the head of a wearer lying on their back and the diaper 1 is placed on the back side of the wearer (under their buttocks), the person putting the diaper 1 on the wearer can easily recognize the pattern M, which is provided widthwise outboard of the space-forming sheet portion 9 and between the upper end of the back side in the longitudinal direction and the predetermined position SP. This allows the person putting the diaper 1 on the wearer to easily recognize the position of the wearer's buttocks relative to the excrement collection space P by visually recognizing the pattern M, which makes it easier to properly fit the diaper 1 on the wearer's body. This also facilitates proper collection of excrement in the excrement collection space P of the diaper 1 during wear, thereby reducing the risk of excrement leaking from the diaper 1.

[0093] In addition, the entire pattern M of the diaper 1 in this embodiment is arranged outside the space-forming sheet portion 9 in the width direction, and between the upper end of the back side of the diaper 1 and the specified position SP in the longitudinal direction, but this is not limited to this, and it is sufficient that at least a part of the pattern M is arranged outside the space-forming sheet portion 9 in the width direction, and between the upper end of the back side of the diaper 1 and the specified position SP in the longitudinal direction.

[0094] In this embodiment, the pattern M is a plain area printed in a rectangular shape. The rectangular shape of the pattern M makes it easier for the person putting on the diaper to recognize the pattern M and to recognize the position of the wearer's buttocks relative to the excrement collection space P. This makes it easier for the wearer to properly put on the diaper 1 and to properly contain excrement in the excrement collection space P when wearing the diaper 1.

[0095] The shape, pattern, and color of the pattern M can be changed as desired. For example, the pattern M is not limited to a rectangular shape, but may be a circle, a polygon, a letter, or other shape. The pattern M is not limited to a plain area, but may have any pattern such as a diagonal line or a floral pattern. The pattern M may also be an area colored in any color such as blue, yellow, or green. The pattern M of this embodiment is a pattern printed by a printing means such as an inkjet printer on the non-skin side of the leak-barrier sheet 4, and is visible through the leak-barrier wall sheet 61 overlaid on the skin side of the leak-barrier sheet 4.

[0096] As shown in FIG. 5 and other figures, it is preferable that the widthwise length Wm of the design M is longer than the longitudinal length Tm of the design M (Wm>Tm). The design M in this embodiment has a horizontally elongated rectangular shape. This allows the person putting the diaper 1 on the wearer to easily see at least a portion of the design M on both widthwise outer sides of the wearer's body, even when the diaper 1 is placed under the wearer's buttocks (back side), compared to when the widthwise length Wm of the design M is equal to or shorter than the longitudinal length Tm of the design M. This makes it easier for the person putting the diaper on to recognize the position of the wearer's buttocks relative to the excrement collection space P. Furthermore, even when the side edges of the diaper 1 are bent inward in the widthwise direction or shrunk during putting on the diaper, the person putting the diaper on can easily see at least a portion of the design M. This makes it easier for the person putting the diaper on to properly place the diaper 1 on the wearer's body, thereby making it easier for the wearer to properly store excrement in the excrement collection space P.

[0097] As shown in Fig. 10 etc., it is preferable that a pair of patterns M are provided spaced apart in the width direction, which makes it easier for the person putting on the diaper 1 to recognize the patterns M and to recognize the position of the wearer's buttocks relative to the excrement collection space P, making it easier for the wearer to put on the diaper 1 properly and for excrement to be properly contained in the excrement collection space P when wearing the diaper 1.

[0098] Furthermore, it is preferable that the pair of patterns M are provided symmetrically with respect to the widthwise center C-C of the diaper 1. At least a portion of each of the pair of patterns M is provided widthwise outward of the space-forming sheet portion 9, and the pair of patterns M are symmetrical with respect to the widthwise center C-C. This allows the person putting the diaper 1 on the wearer to easily see the pair of patterns M provided on both sides of the wearer's body even when the diaper 1 is placed under the wearer's body, making it easier to recognize the pair of patterns M. This makes it easier for the person putting the diaper 1 on the wearer to recognize the position of the wearer's buttocks in relation to the excrement collection space P, making it easier for the wearer to put the diaper 1 on properly and to properly collect excrement in the excrement collection space P when the diaper 1 is being worn.

[0099] When the diaper 1 has a pair of patterns M, the pair of patterns M includes a one-side pattern ML located on one widthwise side and an other-side pattern MR located on the other widthwise side. Furthermore, a plurality of welded portions r are provided on each of both widthwise sides of the space-forming sheet portion 9. As shown in FIG. 5, the plurality of welded portions r include a one-side inner welded portion r1 located on the innermost widthwise side on one widthwise side, and an other-side inner welded portion r2 located on the innermost widthwise side on the other widthwise side. It is preferable that the length Lmu between the inner widthwise end MLu of the one-side pattern ML and the inner widthwise end MRu of the other-side pattern MR be longer than the length Lrb between the inner widthwise end rb1 of the one-side inner welded portion r1 and the inner widthwise end rb2 of the other-side inner welded portion r2 (LMu>Lrb).

[0100] In this way, by making the length Lmu, which is the distance between the patterns M on both sides in the width direction, longer than the length Lrb, which is the distance between the welded portions r on both sides in the width direction, at least a portion of the pattern M can have a portion that does not overlap with the excrement collection space P when viewed in the thickness direction of the diaper 1, compared to when the length Lmu is equal to or shorter than the length Lrb. As a result, even when the diaper 1 is laid under the wearer's buttocks in an unfolded state when putting on the diaper 1, the person putting on the diaper 1 can easily see the pattern on both sides of the wearer's body, making it easier to recognize the position of the excrement collection space P from the pattern M and align the wearer with the excrement collection space P. Furthermore, even if the color of the space-forming sheet portion 9 changes due to the excrement being contained in the excrement collection space P after the diaper 1 has been absorbed and worn, the portion of the pattern M that does not overlap with the excrement collection space P can be made less likely to have an adverse effect, such as a decrease in the visibility of the pattern M. This makes it easier for the wearer to recognize the location of the excrement collection space P even when disposing of the diaper 1, reducing the risk of applying force to the excrement collection space P when rolling or folding the diaper 1, and reducing the risk of excrement stored in the excrement collection space P leaking.

[0101] In the present embodiment, a pair of patterns M are provided symmetrically, but this is not limiting. There may be only one pattern M, or three or more patterns M may be provided, or one or more patterns M may be provided asymmetrically with respect to the widthwise center CC. For example, when there is only one pattern M, the pattern M may be continuous in the widthwise direction, between the upper end of the back side of the diaper 1 in the longitudinal direction and the predetermined position SP, at a position spaced a predetermined distance from the side edge 4e of the leak-barrier sheet 4, and from the outer side (one side) of one widthwise side edge of the space-forming sheet portion 9 to the outer side (the other side) of the other widthwise side edge of the space-forming sheet portion 9 in the widthwise direction.

[0102] 6, it is preferable that the longitudinal center ctm of the pattern M is located closer to the ventral side (the crotch side) than the longitudinal center cL9 of the space forming sheet portion 9. This makes it easier to bring the pattern M closer to the wearer's buttocks when the diaper 1 is placed under the wearer's buttocks when putting on the diaper 1, and the person putting on the diaper can easily recognize the position of the wearer's buttocks relative to the excrement collection space P by visually recognizing the pattern M located near the buttocks. This makes it easier for the wearer to put on the diaper 1 properly, and makes it easier for excrement to be properly collected in the excrement collection space P.

[0103] 5 and other figures, it is preferable that the pattern M has a portion that overlaps with the space-forming sheet portion 9 in the longitudinal direction. In the diaper 1 of this embodiment, approximately half of the pattern M on the back side overlaps with the space-forming sheet portion 9 in the longitudinal direction. This allows the person putting the diaper on to easily recognize the position of the wearer's buttocks relative to the excrement collection space P by visually checking the pattern M when the diaper 1 is placed under the wearer's buttocks. This makes it easier for the wearer to put the diaper 1 on properly, and for excrement to be properly collected in the excrement collection space P.

[0104] Regarding the pattern M, as shown in FIG. 6 and the like, it is preferable that the length Tm in the longitudinal direction of the pattern M is shorter than the length L9 in the longitudinal direction of the space-forming sheet portion 9 (Tm < L9), and it is more preferable that the length Tm in the longitudinal direction of the pattern M is shorter than half hL9 of the length L9 in the longitudinal direction of the space-forming sheet portion 9 (hL9 = L9 × 1 / 2) (Tm < hL9). The shorter the length Tm in the longitudinal direction of the pattern M, the easier it is to specify the position in the longitudinal direction by the pattern M. Therefore, since the length Tm in the longitudinal direction of the pattern M is shorter than the length L9 in the longitudinal direction of the space-forming sheet portion 9 (Tm < L9), and also the length Tm in the longitudinal direction of the pattern M is shorter than half hL9 of the length L9 in the longitudinal direction of the space-forming sheet portion 9, it becomes easier to more specifically indicate the position indicated by the pattern M in the diaper 1. And by the pattern M that has specified the position, it becomes easier to specify the position of the space-forming sheet portion 9 by the pattern M. Therefore, the person who intends to wear it can more accurately recognize the position of the wearer's buttocks with respect to the excrement storage space P during wearing, and it becomes easier to wear the diaper 1 in a state adapted to the appropriate position with respect to the wearer's body. Therefore, it becomes easier to be in a state where the wearer appropriately wears the diaper 1, and it becomes easier to appropriately store excrement in the excrement storage space P. Also, the pattern M whose longitudinal length is shorter than half hL9 of the longitudinal length of the space-forming sheet portion 9 makes it easier for the person who intends to make the wearer aware that the pattern M is different from the space-forming sheet portion 9, and the portion of the pattern M is not a space for storing excrement but for recognizing the excrement storage space P. Thereby, during the wearing of the diaper 1, the person who intends to wear it can easily recognize the position of the wearer's buttocks with respect to the excrement storage space P, can easily make the wearer appropriately wear the diaper 1, and can easily appropriately store excrement in the excrement storage space P.

[0105] It is preferable that the areas adjacent to both longitudinal sides of the design M are non-printed areas N where no design is printed. As shown in FIG. 5 and other figures, the areas adjacent to both longitudinal sides of the design M of the diaper 1 are non-printed areas N where no design M is printed. In other words, the design M is sandwiched between the non-printed areas N in the longitudinal direction. By providing non-printed areas N adjacent to both longitudinal sides, the printed design M becomes more noticeable. This allows the person putting on the diaper to easily recognize the excrement collection space P by recognizing the design M, and to easily recognize the position of the wearer's buttocks and body relative to the excrement collection space P. This makes it easier for the wearer to properly put on the diaper 1 and to properly contain excrement in the excrement collection space P while wearing the diaper 1.

[0106] Furthermore, it is preferable that the widthwise length of the pattern M that does not overlap the space-forming sheet portion 9 in the widthwise direction is longer than the widthwise length of the pattern M that overlaps the space-forming sheet portion 9 in the widthwise direction. The longer the widthwise length of the pattern M that does not overlap the space-forming sheet portion 9 in the widthwise direction, the easier it is for a person putting on the diaper to see the pattern M from the widthwise outer side of the wearer's body, even when the unfolded diaper 1 is placed under the wearer's body (buttocks) when worn. Therefore, by making the widthwise length of the pattern M that does not overlap the space-forming sheet portion 9 in the widthwise direction longer than the widthwise length of the pattern M that overlaps the space-forming sheet portion 9 in the widthwise direction, the risk of the pattern M being blocked by the wearer's body when putting on the diaper can be reduced, making the pattern M more visible to the person putting on the diaper. This also makes it easier for a person putting on the diaper to recognize the position of the excrement collection space P from the pattern M, making it easier to align the wearer's position with the excrement collection space P.

[0107] Furthermore, as shown in FIG. 5 and other figures, it is more preferable that the pattern M does not overlap the space-forming sheet portion 9 in the width direction. In the diaper 1 of this embodiment, the pattern M is provided on both sides of the space-forming sheet portion 9 in the width direction. Specifically, the one-side pattern ML is provided on the width direction outer side of one side edge of the space-forming sheet portion 9, and the other-side pattern MR is provided on the width direction outer side of the other side edge of the space-forming sheet portion 9. This makes it easier for the pattern M to be provided on the width direction outer side of the wearer's body when the diaper 1 is put on a wearer, even when the unfolded diaper 1 is placed under the wearer's buttocks, making it easier for the person putting on the diaper to recognize the pattern M. This makes it easier for the person putting on the diaper to recognize the position of the excrement collection space P from the pattern M, and to align the wearer with the excrement collection space P. Even after wearing, even if excrement is contained in the excrement collection space P and the color of the space forming sheet portion 9 changes, the visibility of the pattern M that does not overlap with the space forming sheet portion 9 in the width direction is unlikely to be affected, and therefore the wearer or the like can easily recognize the position of the excrement collection space P when disposing of the diaper 1. Therefore, even when rolling or folding the diaper 1 when disposing of the diaper 1, the risk of applying force to the excrement collection space P is reduced, and the risk of excrement contained in the excrement collection space P leaking can be reduced.

[0108] As shown in Fig. 1 etc., it is preferable that the pattern M has a portion that overlaps with the engagement portion 11A in the longitudinal direction. The engagement portion 11A is the portion that the wearer etc. operates when putting on the diaper 1. Therefore, when operating the engagement portion 11A when putting on the diaper 1, by having the pattern M having a portion that overlaps with the engagement portion 11A in the longitudinal direction, the wearer etc. can easily visually recognize the pattern M and can easily recognize the position of the wearer's buttocks relative to the excrement collection space P from the pattern M. This also makes it easier for the wearer to properly put on the diaper 1 and to properly collect excrement in the excrement collection space P when wearing the diaper 1.

[0109] The more the visibility of the pattern M is improved, the easier it is for the person putting the diaper on to recognize the location of the excrement collection space P from the pattern M when putting it on. Therefore, when the diaper 1 is viewed in the thickness direction, it is preferable that the area overlapping with the pattern M has a portion where the component closest to the skin and the leak barrier sheet 4 are joined together. As shown in Figs. 1 and 4, the diaper 1 of this embodiment has a portion where the component closest to the skin in the area overlapping with the pattern M is the leak barrier wall sheet 61 and where the leak barrier sheet 61 and the leak barrier sheet 4 are joined together. By joining the leak barrier sheet 4 on which the pattern M is printed to the component closest to the skin (the leak barrier wall sheet 61), the distance between the component closest to the skin (the leak barrier sheet 61) and the pattern M is reduced, improving the visibility of the pattern. Therefore, because the visibility of the pattern M is improved, the person putting the diaper on can more easily recognize the pattern M when looking at the skin side of the diaper 1 when putting the diaper on. The person putting the diaper on the wearer can easily recognize the position of the wearer's buttocks relative to the excrement collection space P from the recognized pattern M, which makes it easier for the wearer to put the diaper on properly and for excrement to be properly contained in the excrement collection space P when the diaper is being worn. The leak barrier sheet 61 and the leak barrier sheet 4 may be joined by welding or compressing the leak barrier sheet 61 and the leak barrier sheet 4 in the thickness direction, or by joining the leak barrier sheet 61 and the leak barrier sheet 4 with an adhesive such as a hot melt adhesive. Furthermore, the leak barrier sheet 61 and the leak barrier sheet 4 are not limited to being directly joined together, but may also be joined indirectly by placing another member (such as a sheet or rubber thread) between the leak barrier sheet 61 and the leak barrier sheet 4 and applying an adhesive between the two members, or, as in this embodiment, the leak barrier sheet 61 and the leak barrier sheet 4 may be joined integrally to another member (exterior sheet 5) by welding. When joining the leak barrier wall sheet 61 and the leak barrier sheet 4 together by welding, the leak barrier sheet 61 and the leak barrier sheet 4 may be joined together and indirectly with another member interposed between them, or multiple members may be provided on the skin side of the leak barrier sheet 4 and one or more members may be provided on the non-skin side of the leak barrier sheet 4, and multiple members including the leak barrier wall sheet 61 and the leak barrier sheet 4 may be welded together at the welding portion.

[0110] It is also preferable that the space-forming sheet portion 9 is colored. The colored space-forming sheet portion 9 makes it easier for the person putting the diaper 1 on the wearer to be aware of the existence of the excrement collection space P formed by the space-forming sheet portion 9 and to recognize the position of the excrement collection space P. This makes it easier for the person putting the diaper on the wearer to recognize the position of the wearer's buttocks relative to the excrement collection space P, making it easier for the wearer to put the diaper 1 on properly and to properly store excrement in the excrement collection space P when the diaper 1 is being worn.

[0111] The color of the space-forming sheet portion 9 can be any color, such as blue or green. "Colored" refers to colors other than colorless, transparent, and white. On the other hand, "white" refers to, for example, a color represented as "N9.5" in the Munsell color system or a color represented as "255,255,255" in the RGB color space (so-called pure white), as well as colors with a color difference of less than 12° from pure white. To measure the color difference of white, a color difference meter such as the Konica Minolta CR-300 can be used, and the light source of the measuring device can be Illuminant C (standard of the International Commission on Illumination (CIE)). In this case, the diameter of the measuring device's measurement window is 40 mm. The color difference is ΔL, Δa, and Δb in the (L*a*b*) color space relative to a white reference plate. The color difference relative to the white reference plate can be calculated by measuring the lab value of the white reference plate and the lab value of the target sample, respectively. The white reference plate is set to lab0 with a coordinate system of (X93.19, Y95.20, Z112.28). Here, L is a value that indexes brightness, and a and b are plane coordinates of chromaticity. If the Lab values ​​of the white reference plate are L0, a0, and b0, and those of the target sample are L1, a1, and b1, then ΔL can be calculated as ΔL = L0-L1, Δa = a0-a1, and Δb = b0-b1.

[0112] The color of the space-forming sheet portion 9 is preferably different from the color of the skin-side sheet portion 3. In the diaper 1, the central sheet 31 of the skin-side sheet portion 3 is the sheet that contacts the wearer's skin when worn and has a portion exposed to the skin side. When the skin-side sheet portion 3 has the central sheet 31 and side sheets 32, as in the diaper 1, the color of the space-forming sheet portion 9 is preferably different from the color of the sheet (central sheet 31) having the surface exposed to the skin side. As a result, when putting on a tape-type diaper 1, a person putting on the diaper usually puts the diaper 1 on a wearer lying on their back with the skin side of the diaper 1 facing up. In this case, having the space-forming sheet portion 9 in a color different from the skin-side sheet portion 3 (central sheet 31) makes it easier for the person putting on the diaper to be aware of the existence of the excrement collection space P and to easily recognize the location of the excrement collection space P. This makes it easier for the wearer to put on the diaper 1 properly and to properly collect excrement in the excrement collection space P when wearing the diaper.

[0113] "Different colors" refers to colors that are different enough to be distinguishable by the naked eye of an average user. For example, colors that belong to different hues among the 10 hues in the Munsell color wheel (Munsell color wheel) can be considered "different colors." Different colors can also be determined based on values ​​measured using a commercially available colorimeter (e.g., a Konica Minolta CR-400 color difference meter or equivalent).

[0114] It is also preferable that the design M be visible from the non-skin side of the diaper 1 (see FIG. 2). In the diaper 1 of this embodiment, the design M printed on the leak-barrier sheet 4 is visible through the outer sheet 5 provided on the non-skin side of the leak-barrier sheet 4. When disposing of the diaper 1, it is common to roll or fold the diaper 1 with the skin side facing inward and the non-skin side facing outward, and discard the diaper 1 in a compact shape. Therefore, when disposing of the diaper 1, the wearer or the like can easily recognize the location of the excrement collection space P by visually checking the design M visible from the non-skin side of the diaper 1, and this makes it easier to avoid applying excessive force to the area corresponding to the excrement collection space P when rolling or folding the diaper 1. This reduces the risk of excrement leaking from the excrement collection space P by pressing or squeezing the area corresponding to the excrement collection space P.

[0115] As described above, the diaper 1 has back-side side flaps 10A (see FIG. 1, etc.), and as shown in FIG. 4, the back-side side flaps 10A are preferably located closer to the wearer's skin than the leak-barrier sheet 4. In this case, as shown in FIG. 2, it is preferable that the pattern M overlaps with the back-side side flaps 10A when viewed in the thickness direction of the diaper 1. In this embodiment, the outer widthwise edge of the pattern M overlaps with the back-side side flaps 10A when viewed in the thickness direction. This makes the overlapping portions of the pattern M with the back-side side flaps 10A less noticeable than the portions not overlapping with the back-side side flaps 10A when viewed from the non-skin side of the diaper 1. This reduces the risk of the pattern M being overly noticeable from the outside while the diaper 1 is being worn, improving the aesthetic appearance of the diaper 1.

[0116] ===Modifications of the Space Forming Sheet Portion 9=== 11 is a diagram illustrating a modified diaper 100. In the following, parts of the diaper 100 that are common to the above-described diaper 1 are designated by the same reference numerals, and detailed description of the basic configuration of the diaper 100 is omitted, with the focus being on the configuration of the space-forming sheet portion 9 that differs from the above-described diaper 1.

[0117] Although the space-forming sheet portion 9 of the diaper 1 described above has a rectangular shape, the space-forming sheet portion 9 may have any shape other than a rectangle, as in the diaper 100 shown in Fig. 11. The rear edge of the space-forming sheet portion 9 of the diaper 100 shown in Fig. 11 is curved along the width direction rather than being linear along the width direction. In the diaper 1, not only the space-forming sheet portion 9 but also the rear edges of the skin-side sheet portion 3, the leak-barrier sheet 4, and other components are curved along the width direction.

[0118] The space-forming sheet member 9 of the diaper 100 has a minimum length portion 9m, which is the shortest length in the longitudinal direction. As shown in Fig. 11, the minimum length portion 9m of the diaper 100 is the portion where the back-side end of the space-forming sheet member 9 is most recessed toward the ventral side. At least a part of the pattern M of the diaper 100 is located widthwise outward of the space-forming sheet member 9 and between the upper end of the back-side in the longitudinal direction and a predetermined position SP, and preferably further between the upper end of the back-side of the diaper 100 and a second predetermined position SS in the longitudinal direction.

[0119] The "predetermined position SP" is a position in the longitudinal direction of the diaper 1 that is away from the lower end of the space-forming sheet portion 9 toward the ventral side by the length L9 of the space-forming sheet portion 9. In other words, the predetermined position SP is a position that is away from the back-side end of the space-forming sheet portion 9 (the upper end of the back-side of the diaper 1) toward the ventral side by twice the length L9 of the space-forming sheet portion 9 in the longitudinal direction (L9 × 2). When the shape of the space-forming sheet portion 9 is not rectangular, as in diaper 100, the upper end (dorsal end) of the space-forming sheet portion 9 is the end of the space-forming sheet portion 9 located furthest to the dorsal side, and the lower end (ventral end) of the space-forming sheet portion 9 is the end of the space-forming sheet portion 9 located furthest to the ventral side (crotch side). The "second predetermined position SS" is a position in the longitudinal direction of the diaper 100 that is away from the lower end of the space forming sheet portion 9 toward the abdominal side (crotch side) by the longitudinal length m9 of the shortest length portion 9m. The "shortest length portion 9m" is the portion of the space-forming sheet portion 9 that has the shortest longitudinal length, and in the diaper 100, it is the portion where the back-side end of the space-forming sheet portion 9 is recessed toward the ventral side, but is not limited to this. The shortest length portion 9m may be the portion where the length from the upper end (back-side end) to the lower end (ventral side end) of the space-forming sheet portion 9 is the shortest, and may be, for example, the shortest length portion 9m that is provided by the upper end (back-side end) of the space-forming sheet portion 9 bulging toward the back side (upper side) and the lower end (ventral side end) of the space-forming sheet portion 9 bulging toward the back side (upper side).

[0120] Even in the case of the diaper 100 in which the shape of the space-forming sheet portion 9 is not rectangular, the diaper 100 is provided with the pattern M, which is provided widthwise outward of the space-forming sheet portion 9 and between the upper end of the back side in the longitudinal direction and the second predetermined position SS. Therefore, when the diaper 100 is put on a wearer lying on their back, even if the back end of the diaper 100 is inserted from the crotch to the head of the wearer at the back side of the wearer (under the buttocks) and the diaper 100 is placed on the back side of the wearer, the person putting the diaper 100 on the wearer can easily recognize the pattern M, which is provided widthwise outward of the space-forming sheet portion 9 and between the upper end of the back side in the longitudinal direction and the second predetermined position SS. This allows the person putting the diaper 100 on the wearer to easily recognize the position of the wearer's buttocks in relation to the excrement collection space P by visually recognizing the pattern M, which makes it easier to properly put the diaper 100 on the wearer's body. This also makes it easier for the excrement to be properly contained within the excrement collection space P of the diaper 100 when worn, and makes it easier to reduce the risk of excrement leaking from the diaper 100.

[0121] Furthermore, the diaper 100 may have the configurations and features of the diaper 1 described above, if applicable.

[0122] The space-forming sheet portion 9 and the excrement receiving space P of the diaper 1 (diaper 100) may have the following features. The diaper (1) has, in its unfolded and stretched state, longitudinal, width, and thickness directions that are perpendicular to one another, and comprises a liquid-absorbent absorber (2) and a skin-side sheet portion (3) disposed closer to the skin than the absorber (2). The skin-side sheet portion (3) comprises a central sheet (31) and a pair of side sheets (32) that are different from the central sheet (31). The central sheet (31) is disposed in the widthwise center and has a portion that can contact the wearer's skin when worn. The pair of side sheets are disposed on both widthwise edge portions. The widthwise edge portions of the central sheet (31) have fixing portions (3f) fixed to the inner widthwise edge portions of the side sheets (32). The total area of ​​openings (31h) penetrating the central sheet (31) in the thickness direction per unit area is larger than the total area of ​​openings penetrating the side sheets (32) in the thickness direction per unit area. The diaper (1) comprises a space-forming sheet portion (9) disposed closer to the skin than the skin-side sheet portion (3) and at the end on the back side in the longitudinal direction for forming an excrement collection space (P). The space-forming sheet portion (9) is stretchable in the width direction. Both widthwise sides of the space forming sheet portion 9 are joined at welded portions r to a plurality of members that overlap the space forming sheet portion 9 in the thickness direction, the back side end of the space forming sheet portion 9 is fixed to at least a member that is adjacent to the space forming sheet portion 9 in the thickness direction, and the ventral side end of the space forming sheet portion 9 in the longitudinal direction can form an entrance to the excrement storage space P. The central sheet 31 may not be included in the plurality of members, and the side sheets 32 may be included in the plurality of members. In this way, the central sheet 31, which has a larger total opening area than the side sheets 32, improves the absorbency of excrement when worn and makes it easier for the wearer to feel that the absorbency is better and that the feel is better against the skin when worn. Furthermore, by including the side sheets 32, which have a smaller total opening area than the central sheet 31, in the multiple members that are welded to the space-forming sheet portion 9, the strength of the welded joint at the welded portion r can be improved more than when the central sheet 31, which has a larger total opening area than the side sheets 32, is included in the multiple members. This improves the absorbency of excrement while reducing the risk of the space-forming sheet portion 9 at the welded portion r becoming detached from the multiple members, making it easier to retain excrement in the excrement storage portion P.

[0123] In the diaper 1, the average density of the side sheets 32 may be higher than the average density of the central sheet 31. In this way, by making the average density of the side sheets 32 of the diaper 1 higher than the average density of the central sheet 31, the strength of the welded joint at the welded portion r can be improved more than if the average density of the side sheets 32 were lower than the average density of the central sheet, thereby reducing the risk of the space-forming sheet portion 9 at the welded portion r coming off from the multiple components and making it easier to retain excrement in the excrement storage space P.

[0124] The diaper 1 also has a pair of leakage preventing walls 6 on both sides in the width direction. Each leakage preventing wall 6 has a leakage preventing wall elastic member 62 that stretches in the longitudinal direction, a standing portion 6b that can stand on the skin side, and a non-standing portion 6a that cannot stand. The non-standing portion 6a has a first non-standing portion 6a1 and a second non-standing portion 6a2, with the first non-standing portion 6a1 being located outward in the width direction from the standing portion 6b, and the second non-standing portion 6a2 being located outward in the longitudinal direction from the standing portion 6b. On one side in the width direction, the other side edge in the width direction of the welded portion r may be located outward in the width direction from the one side edge in the width direction of the second non-standing portion 6a2. In this way, on one width side of the diaper 1, the other width side end of the welded portion r is located widthwise outer than the one width side end of the second non-standing portion 6a2, which makes it easier to make the entrance to the excrement storage space P wider than when the other width side end of the welded portion r is located widthwise inner than the one width side end of the second non-standing portion 6a2, making it easier to keep excrement within the excrement storage space P and reducing the risk of excrement leaking from the diaper 1.

[0125] The diaper 1 also has a pair of leakage barrier walls 6 on both sides in the width direction. Each leakage barrier wall 6 has a leakage barrier wall elastic member 62 that stretches in the longitudinal direction, a standing portion 6b that can stand on the skin side, and a non-standing portion 6a that cannot stand. The non-standing portion 6a has a first non-standing portion 6a1 and a second non-standing portion 6a2, with the first non-standing portion 6a1 being located outward in the width direction from the standing portion 6b, and the second non-standing portion 6a2 being located outward in the longitudinal direction from the standing portion 6b. On one side in the width direction, one side edge of the central sheet 31 in the width direction may be located outward in the width direction from the other side edge of the second non-standing portion 6a2 in the width direction. Generally, a sheet that is soft to the touch is used for the central sheet. The diaper 1 having such characteristics can provide a wide area of ​​the skin-side sheet portion 3 (central sheet 31) that can come into contact with the wearer's skin, which improves the absorbency of excrement while also improving the softness of the diaper 1 against the wearer's skin.

[0126] The diaper 1 also has a pair of leakage preventing walls 6 on both sides in the width direction. Each leakage preventing wall 6 has a leakage preventing wall elastic member 62 that stretches in the longitudinal direction, an upstanding portion 6b that can stand on the skin side, and a non-upstanding portion 6a that cannot stand. The non-upstanding portion 6a has a first non-upstanding portion 6a1 and a second non-upstanding portion 6a2, with the first non-upstanding portion 6a1 being located outward in the width direction from the upstanding portion 6b, and the second non-upstanding portion 6a2 being located outward in the longitudinal direction from the upstanding portion 6b. The diaper 1 may also have an overlapping portion in the thickness direction where the excrement collection space P, the second non-upstanding portion 6a2, and the fixing portion 3f overlap. In the diaper 1 having such characteristics, the second non-standing portion 6a2 and the fixed portion 3f are fixed with a fixing means such as an adhesive and therefore have higher rigidity than the surrounding areas. Therefore, by having the second non-standing portion 6a2 and the fixed portion 3f that overlap with the excrement storage space P when viewed in the thickness direction, it becomes easier to maintain the shape of the excrement storage space P and to make it easier to widen the entrance to the excrement storage space P, making it easier to keep excrement within the excrement storage space P and reducing the risk of excrement leaking from the diaper 1.

[0127] Furthermore, when the absorbent body 2 of the diaper 1 comprises an absorbent core 21 and a non-skin side core wrap portion 22b covering the non-skin side of the absorbent core 21, and a non-woven fabric sheet 8 on the non-skin side of the non-skin side core wrap portion 22b, the non-woven fabric sheet 8 may have a portion that overlaps with the excrement storage space P when viewed in the thickness direction. A diaper 1 having such characteristics makes it easier to increase the rigidity of the excrement storage space P by using the nonwoven fabric sheet 8, making it easier to maintain the shape of the excrement storage space P and making it easier to make the entrance to the excrement storage space P wider, making it easier to keep excrement within the excrement storage space P and reducing the risk of excrement leaking from the diaper 1.

[0128] Furthermore, the longitudinal end of the nonwoven fabric sheet 8 of the diaper 1 on the back side may be located closer to the ventral side than the longitudinal end of the diaper 1 on the back side. The diaper 1 having these characteristics makes it easier to maintain the shape of the excrement collection space P by using the nonwoven fabric sheet 8, makes it easier to make the entrance of the excrement collection space P wider, and reduces the risk of the back edge of the diaper 1 becoming stiff, making it easier to reduce discomfort when wearing the diaper.

[0129] Furthermore, when the diaper 1 includes a nonwoven fabric sheet 8 on the non-skin side of the absorbent body 2, the welded portion r may be located on the outer side of the nonwoven fabric sheet 8 in the width direction. In the diaper 1 having such characteristics, the side edges of the nonwoven fabric sheet 8 are portions where the rigidity changes, so that the diaper 1 can be easily folded along the longitudinal direction, and the entrance to the excrement collection space P can be easily opened.

[0130] In addition, the space-forming sheet portion 9 of the diaper 1 has a welding region R on both sides in the width direction, where multiple welding portions r are provided, and on one side in the width direction, the outer end of the side sheet 32 ​​in the width direction may be located outward in the width direction from the center in the width direction of the welding region R. A diaper 1 having such characteristics makes it easier to provide a wider overlapping area between the side sheet 32 ​​and the welding area R on one side in the width direction when viewed in the thickness direction, making it easier to improve the strength of the welding bond between the space-forming sheet portion 9 and multiple components including the side sheet 32.

[0131] Furthermore, on one side of the diaper 1 in the width direction, the outer edge of the side sheet 32 ​​in the width direction may be positioned outward in the width direction from the outer edge of the welded region R in the width direction. A diaper 1 having such characteristics makes it easier to provide a wider overlapping area between the side sheet 32 ​​and the welded area R on one side in the width direction when viewed in the thickness direction, making it easier to further improve the strength of the welded joint between multiple components including the side sheet 32 ​​and the space-forming sheet portion 9.

[0132] The diaper 1 is an absorbent article having a longitudinal direction, a width direction, and a thickness direction that are perpendicular to one another in an unfolded and stretched state, and includes a liquid-absorbent absorber 2 and a skin-side sheet portion 3 (central sheet 31) that is located closer to the skin than the absorber 2 and has a plurality of openings 31h penetrating through the thickness direction. The skin-side sheet portion 3 is located at least in the center in the width direction and has a portion that can abut against the wearer's skin when worn. The diaper 1 also includes a space-forming sheet portion 9 that is located closer to the skin than the skin-side sheet portion 3 and at the end on the back side in the longitudinal direction, for forming an excrement collection space P. The space-forming sheet portion 9 is stretchable in the width direction, and both widthwise ends of the space-forming sheet portion 9 are joined to members that overlap the space-forming sheet portion 9 in the thickness direction at a plurality of welded portions r. The end Q on the back side of the space-forming sheet portion 9 is fixed to at least a member adjacent to the space-forming sheet portion 9 in the thickness direction, and the end on the ventral side in the longitudinal direction of the space-forming sheet portion 9 can form an entrance to the excrement collection space P. The average area of ​​the welded portion r may be larger than the average area of ​​the openings in the exposed region of the skin side sheet portion 3 that is exposed to the skin side. The diaper 1 having these characteristics improves the absorbency of body exudates when worn by providing the skin-side sheet portion 3 with multiple openings 31h, and more easily gives the wearer the impression that the diaper is well absorbent. Furthermore, since the average area of ​​the welded portions r is larger than the average area of ​​the openings 31h, it is easier for the wearer to recognize that the welded portions r do not penetrate through the thickness direction than when the average area of ​​the welded portions r is smaller than the average area of ​​the openings 31h, and this makes it easier to reduce the risk of the wearer mistakingly believing that body exudates will leak through the welded portions r.

[0133] It is also preferable that the space-forming sheet member 9 of the diaper 1 has a welding region R in which a plurality of welding portions r are provided on both widthwise sides thereof. The total area of ​​the plurality of openings 31h per unit area in the exposed region may be larger than the total area of ​​the plurality of welding portions r per unit area in the welding region R. In this way, since the total area of ​​the multiple openings 31h per unit area in the exposed region is larger than the total area of ​​the multiple welded parts r per unit area in the welded region R, the area occupied by the welded parts r in the welded region R can be made smaller than when the total area of ​​the multiple openings 31h per unit area in the exposed region is less than the total area of ​​the multiple welded parts r per unit area in the welded region R.This makes it difficult for the wearer, etc. to see the welded parts r, and helps to reduce the risk of the wearer, etc., mistaking the welded parts r for them to penetrate in the thickness direction and leak excrement from the welded parts r.

[0134] In addition, the space-forming sheet portion 9 of the diaper 1 may have a welding region R on both sides in the width direction, where multiple welding regions r are provided, and in the longitudinal direction, the proportion of the welding regions r in the space-forming sheet portion 9 may be 90% or more of the longitudinal length of the welding region R. This reduces the risk of excrement leaking from the widthwise ends of the welded regions R. Furthermore, the space-forming sheet portion 9 has, at its side edges, welded regions r that extend in the longitudinal direction along 90% or more of the longitudinal length of the welded regions R, which gives the wearer the impression that excrement contained in the excrement collection space P is unlikely to leak from the excrement collection space P.

[0135] The diaper 1 also has a pair of leak-barrier wall portions 6 on both sides in the width direction. Each leak-barrier wall portion 6 has a leak-barrier wall sheet 61 along the longitudinal direction, a leak-barrier wall elastic member 62 that stretches in the longitudinal direction, a standing portion 6b that can stand up against the skin, and a non-standing portion 6a that cannot stand up. The non-standing portion 6a has a first non-standing portion 6a1 and a second non-standing portion 6a2, and the first non-standing portion 6a1 is located outward in the width direction from the standing portion 6b. The second non-standing portion 6a2 is located outward in the longitudinal direction from the standing portion 6b, and the second non-standing portion 6a2 is fixed to a member adjacent to the leak-barrier wall sheet 61 in the thickness direction by a leak-barrier wall second fixing portion bb. The leak-barrier wall second fixing portion bb is joined by welding. In the width direction, at least a portion of the leak preventing wall second fixing portion bb is provided between the opening 31h and the plurality of welded portions r, and the average area of ​​the welded portions r may be smaller than the average area of ​​the leak preventing wall second fixing portion bb. In this way, by providing the second fixing portion bb of the leakage prevention wall, which has an average area larger in the width direction than the opening 31h and the welded portion r, the likelihood of the wearer or the like noticing the welded portion r is reduced, making it easier for the wearer or the like to recognize that the welded portion r does not penetrate in the thickness direction, and making it easier to reduce the risk of the wearer or the like mistakenly believing that excrement will leak from the welded portion r.

[0136] The space-forming sheet portion 9 of the diaper 1 has a welded region R with multiple welded portions r on both sides in the width direction. The diaper 1 has a pair of leakage barrier wall portions 6 on both sides in the width direction. Each leakage barrier wall portion 6 has a leakage barrier wall sheet 61 along the longitudinal direction, a leakage barrier wall elastic member 62 that stretches in the longitudinal direction, a standing portion 6b that can stand on the skin side, and a non-standing portion 6a that cannot stand. The non-standing portion 6a has a first non-standing portion 6a1 and a second non-standing portion 6a2, and the first non-standing portion 6a1 is located outward in the width direction from the standing portion 6b. The second non-standing portion 6a2 is located outward in the longitudinal direction from the standing portion 6b, and the first non-standing portion 6a1 is fixed to a member adjacent to the leakage barrier wall sheet 61 in the thickness direction by a leakage barrier wall first fixing portion aa. The leakage barrier wall first fixing portion aa is joined by welding. In the longitudinal direction, in the portion where the leakage preventing wall first fixing portion aa and the welded region R overlap, the average area of ​​the leakage preventing wall first fixing portion aa may be larger than the average area of ​​the welded region r. In this way, by providing the leak-proof wall first fixed portion aa, which has an average area larger in the width direction than the opening 31h and the welded portion r, the likelihood of the wearer or the like noticing the welded portion r is reduced, making it easier for the wearer or the like to recognize that the welded portion r does not penetrate in the thickness direction, and making it easier to reduce the risk of the wearer or the like mistakenly believing that excrement will leak from the welded portion r.

[0137] The space-forming sheet portion 9 of the diaper 1 has a welding region R on both widthwise sides thereof, where a plurality of welding portions r are provided. The plurality of openings 31h of the skin-side sheet portion 3 are evenly arranged in the longitudinal and width directions in the exposed region, and the plurality of welding portions r in the welding region R may be unevenly arranged in the longitudinal and width directions in the welding region R. In this way, the arrangement of the multiple welded portions r is different from the arrangement of the multiple openings 31h, making it easier for the wearer to recognize that the multiple welded portions r are parts that do not penetrate in the thickness direction, unlike the skin side sheet portion 3 which has openings 31h that penetrate in the thickness direction.

[0138] The space-forming sheet portion 9 of the diaper 1 is made up of a plurality of sheets stacked in the thickness direction, and the plurality of sheets have a plurality of compressed portions 9a compressed in the thickness direction. The average area of ​​the welded portions r may be larger than the average area of ​​the compressed portions 9a. In this way, by making the average area of ​​the welded parts r larger than the average area of ​​the compressed parts 9a, it is possible to more firmly bond the space forming sheet part 9 to the member that overlaps it in the thickness direction than when the average area of ​​the welded parts r is equal to or smaller than the average area of ​​the compressed parts 9a. This reduces the risk of the space forming sheet part 9 peeling off or being damaged, which could lead to leakage of excrement contained in the excrement accommodating space P. It also makes it easier for the wearer to recognize that there is little risk of the space forming sheet part 9 peeling off or being damaged.

[0139] The skin-side sheet portion 3 of the diaper 1 includes a central sheet 31 and a pair of side sheets 32, which are different from the central sheet 31. The central sheet 31 is located in the widthwise center and has a portion that can contact the wearer's skin when worn. The pair of side sheets 32 are located on both widthwise edge portions, and the widthwise edge portions of the central sheet 31 have fixing portions 3f fixed to the widthwise inner edge portions of the side sheets 32. The total area of ​​the multiple openings 31h penetrating the central sheet 31 in the thickness direction per unit area is preferably larger than the total area of ​​the multiple openings 31h penetrating the side sheets 32 in the thickness direction per unit area. The space-forming sheet portion 9 has both widthwise edge portions joined to multiple members overlapping the space-forming sheet portion 9 in the thickness direction by multiple welding portions r. When the central sheet 31 is not included in the multiple members, and when the side sheets 32 are included in the multiple members, the average area of ​​the openings 31h in the central sheet 31 may be smaller than the average area of ​​the fixing portions 3f. The diaper 1 having these features improves the absorbency of body exudates when worn by the multiple openings 31h in the skin-side sheet portion 3 (central sheet 31) and makes it easier for the wearer to feel that the diaper is well absorbent. Furthermore, while improving the fastening strength between the central sheet 31 and the side sheets 32, it also makes it easier for the wearer to recognize that the welded portions r do not penetrate through the thickness direction, which reduces the risk of the wearer mistaking the welded portions r for leaking body exudates.

[0140] ===Other embodiments=== The above-described embodiments are intended to facilitate understanding of the present invention and are not intended to limit the present invention. The present invention may be modified or improved without departing from the spirit thereof, and it goes without saying that the present invention includes equivalents thereof.

[0141] In the above-described embodiment, the excrement collection space P is provided by the space-forming sheet portion 9 at the back end of the diaper 1, but an excrement collection space may also be provided at the ventral end of the diaper 1 by providing a space-forming sheet portion (not shown) similar to that at the back end. By providing an excrement collection space at the ventral end of the diaper 1, it is possible to reduce the risk of excrement leaking from the ventral end not only when the wearer of the diaper 1 is lying on their back but also when they are lying face down. [Explanation of symbols]

[0142] 1,100 diapers (tape-type disposable diapers, tape-type absorbent articles), 1A Back waist area, 1B ventral girth, 1C Inseam, 2 absorber, 21 absorbent core, 22 Core wrap sheet, 22a Skin side core wrap part, 22b Non-skin side core wrap portion (core wrap sheet), 3 Skin side sheet part, 31 center seat, 31h opening, 32 side seats, 3f fixed part, 4 leak-proof sheets, 5 exterior sheets, 6 Leakage prevention wall section, 6a Non-erect parts; 6a1 1st non-erecting part, 6a2 2nd non-erecting part, 6b Standing part, 61 Leak-proof wall sheet, 62 Leak-proof wall elastic member, 7 Second seat, 8 nonwoven sheets, 9 space forming sheet part, 9a Compression section, 10A Dorsal side flap, 10B ventral side flap; 11A Engagement part, 15 target member, aa Leakage wall 1st fixed part, bb Leakage wall second fixing part, r welded part, LG elastic leg material, M design, ML one side pattern, MR other side design, P waste collection space, Q dorsal end, R Welding area, side edge

Claims

1. In the deployed and extended state, having a longitudinal direction, a width direction, and a thickness direction which are perpendicular to each other, a liquid-absorbing absorbent body; a skin-side sheet portion provided on the skin side of the absorbent body; a leak-proof sheet provided on the non-skin side of the absorbent body; A tape-type absorbent article comprising: a pair of side flap portions on both sides in the width direction of the tape-type absorbent article; Each of the pair of side flap portions has an engaging portion that can engage with the non-skin side of the tape-type absorbent article, a space-forming sheet portion for forming an excrement storage space, the space-forming sheet portion being located closer to the skin side than the skin-side sheet portion and at an end portion on the back side in the longitudinal direction; The space forming sheet portion is stretchable in the width direction, Both side portions in the width direction of the space forming sheet portion are joined at least to members adjacent to the space forming sheet portion in the thickness direction by welding portions, The back side end of the space forming sheet portion is fixed to at least a member adjacent to the space forming sheet portion in the thickness direction, an end portion of the space forming sheet portion on the ventral side in the longitudinal direction can form an entrance to the excrement collection space, the leak-barrier sheet has a pattern printed at a position spaced a predetermined distance from a side edge of the leak-barrier sheet in the width direction, In the longitudinal direction, when a position away from the lower end of the space forming sheet portion to the ventral side by the length of the space forming sheet portion in the longitudinal direction is set as a predetermined position, The pattern is visible from the skin side, At least a part of the design is The space forming sheet portion is provided on the outer side in the width direction, In the longitudinal direction, the upper end of the back side is provided between the upper end of the back side and the predetermined position. A tape-type absorbent article characterized by:

2. The tape-type absorbent article according to claim 1, A tape-type absorbent article characterized in that a pair of the patterns are provided spaced apart in the width direction.

3. The tape-type absorbent article according to claim 2, A tape-type absorbent article characterized in that the pair of patterns are provided symmetrically with respect to the center of the tape-type absorbent article in the width direction.

4. The tape-type absorbent article according to claim 2 or 3, The pair of patterns includes a one-side pattern located on one side in the width direction and a other-side pattern located on the other side in the width direction, Each of the widthwise opposite side portions of the space forming sheet portion includes a plurality of the welded portions, the plurality of welded portions include a one-side inner welded portion located on one side in the width direction at the innermost position in the width direction, and an other-side inner welded portion located on the other side in the width direction at the innermost position in the width direction, A tape-type absorbent article characterized in that the length between the inner widthwise end of the one side pattern and the inner widthwise end of the other side pattern is longer than the length between the inner widthwise end of the one side inner welded portion and the inner widthwise end of the other side inner welded portion.

5. The tape-type absorbent article according to any one of claims 1 to 3, A tape-type absorbent article characterized in that the pattern is visible when viewed from the non-skin side.

6. The tape-type absorbent article according to any one of claims 1 to 3, A tape-type absorbent article, characterized in that the length of the pattern in the width direction is longer than the length in the length direction.

7. The tape-type absorbent article according to any one of claims 1 to 3, A tape-type absorbent article characterized in that, in the longitudinal direction, the center of the pattern is located on the ventral side of the center of the space-forming sheet portion in the longitudinal direction.

8. The tape-type absorbent article according to any one of claims 1 to 3, A tape-type absorbent article characterized in that the pattern has a portion overlapping the space-forming sheet portion in the longitudinal direction.

9. The tape-type absorbent article according to any one of claims 1 to 3, The length of the pattern in the longitudinal direction is shorter than the length of the space forming sheet portion in the longitudinal direction, A tape-type absorbent article, characterized in that the length of the pattern in the longitudinal direction is shorter than half the length of the space-forming sheet portion in the longitudinal direction.

10. The tape-type absorbent article according to any one of claims 1 to 3, Of the above designs, In the width direction, the length in the width direction of the pattern that does not overlap with the space forming sheet portion, A tape-type absorbent article characterized in that the tape-type absorbent article is longer in the width direction than the length of the pattern that overlaps the space-forming sheet portion in the width direction.

11. The tape-type absorbent article according to claim 10, A tape-type absorbent article characterized in that the pattern does not overlap the space-forming sheet portion in the width direction.

12. The tape-type absorbent article according to any one of claims 1 to 3, A tape-type absorbent article characterized in that, in the thickness direction, the area overlapping with the pattern has a portion where the member closest to the skin and the leak-proof sheet are joined.

13. The tape-type absorbent article according to any one of claims 1 to 3, A tape-type absorbent article characterized in that the pattern has a portion that overlaps with the engaging portion in the longitudinal direction.

14. The tape-type absorbent article according to any one of claims 1 to 3, the side flaps are provided on the non-skin side of the leak-barrier sheet, A tape-type absorbent article characterized in that, when viewed in the thickness direction, the pattern has a portion that overlaps with the side flap.

15. The tape-type absorbent article according to any one of claims 1 to 3, A tape-type absorbent article, wherein the space-forming sheet portion is colored.

16. The tape-type absorbent article according to any one of claims 1 to 3, A tape-type absorbent article characterized in that the color of the space-forming sheet portion is different from the color of the skin-side sheet portion.

17. The tape-type absorbent article according to any one of claims 1 to 3, A tape-type absorbent article, characterized in that the areas adjacent to both sides of the pattern in the longitudinal direction are non-printed areas in which no pattern is printed.

18. The tape-type absorbent article according to any one of claims 1 to 3, A tape-type absorbent article characterized in that the pattern is rectangular.

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