Tape type disposable diaper

Abstract

To provide a tape type disposable diaper that can be easily fitted to an appropriate position so as not to cause leakage of excrement.SOLUTION: In a tape type disposable diaper 1, left and right outer expanding and contracting materials 11L, 11R, and left and right inner expanding and contracting materials 12L, 12R are obliquely arranged along left and right side edges 2L, 2R in a rear transition part BM of a body 2, are arranged substantially in parallel to the left and right side edges 2L, 2R in a rear part B, and are obliquely arranged to a left and right center line in the vicinity of a rear edge 2B of the rear part B, and a rear end expanding and contracting material 13 is arranged so as to connect at least the left and right inner expanding and contracting materials 12L, 12R to each other. With this, the left and right outer expanding and contracting materials 11L, 11R, left and right inner expanding and contracting materials 12L, 12R, and the rear end expanding and contracting material 13 are arranged in a substantially circular arc shape in the rear transition part BM and the rear part B. The rear transition part BM and the rear part B of the body 2 include a swelling structure 16 that fits along the hip of a wearer in wearing, and has an excrement housing space between the hip and the swelling structure.SELECTED DRAWING: Figure 4

Description

[Technical field]

[0001] The present invention relates to a tape-type disposable diaper. [Background technology]

[0002] The tape-type disposable diaper disclosed in Patent Document 1 comprises a target tape provided on the exterior surface of the abdominal portion, a fastening tape protruding from the left and right side edges of the dorsal portion and detachable from the target tape, left and right elastic materials provided along the left and right side edges of the diaper from a part of the abdominal portion through the middle portion to the front half of the dorsal portion, and end flap elastic materials provided in the left and right directions in an absorbent-free area at the center of the rear end of the dorsal portion.

[0003] Tape-type disposable diapers are often applied by caregivers to elderly people who are lying down, but it is not easy to apply them in an appropriate position to prevent leakage of excrement. In the tape-type disposable diaper of Patent Document 1, the elastic material is arranged as described above, so it is difficult to apply it in an appropriate position to fit the shape of the wearer's rounded buttocks and prevent leakage of excrement. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Patent No. 5603391 Summary of the Invention [Problem to be solved by the invention]

[0005] SUMMARY OF THE PRESENT EMBODIMENTS One object of the present invention is to provide a tape-type disposable diaper which is easy to wear in a proper position so as to prevent leakage of exudates. [Means for solving the problem]

[0006] A tape-type disposable diaper according to one embodiment of the present invention comprises a main body containing a liquid-retaining absorbent between a liquid-permeable top sheet and a liquid-impermeable bottom sheet, the main body having an overall shape in which the width of the intermediate portion in the longitudinal direction of the rectangular shape is narrowed, the main body having a front portion which is one end in the longitudinal direction of the main body and a rear portion which is the other end and is longer than the front portion, the front transition portion extending from the front portion to the intermediate portion and the rear transition portion extending from the rear portion to the intermediate portion becoming narrower in width toward the intermediate portion, tapes protruding outward from the left and right side edges of the rear portion of the main body, fastening portions provided on the protruding ends of each tape and detachable from the exterior surface of the front portion or the front transition portion of the main body, left and right outer elastic members each consisting of a group of thread-like elastic members arranged near the left and right side edges of the main body, and fastening portions each consisting of a group of thread-like elastic members arranged near the left and right center lines of the left and right outer elastic members. and a rear end elastic material arranged in the width direction near the rear end edge of the rear portion of the main body, wherein the outer elastic material and the inner elastic material are arranged diagonally along the left and right side edges at the rear transition portion, arranged approximately parallel to the left and right side edges at the rear portion, and arranged diagonally toward the left and right center line near the rear end edge of the rear portion, and the rear end elastic material is arranged so as to connect at least the left and right inner elastic materials, so that the outer elastic material, the inner elastic material, and the rear end elastic material are arranged in a substantially arc shape at the rear transition portion and the rear portion of the main body, and the rear transition portion and the rear portion of the main body have a bulging structure that fits along the buttocks of the wearer when worn and has an excrement storage space between the buttocks.

[0007] In the tape-type disposable diaper, each of the fastening portions may be detachably attached to a target tape provided on the exterior surface at the front portion or the front transition portion of the main body.

[0008] The tape-type disposable diaper may further include a flap having a base end fixed near the rear edge of the rear portion of the main body and having a flap elastic material arranged in the left-right direction at its free end, and the rear end elastic material may be provided within the base end of the flap.

[0009] The tape-type disposable diaper may further include left and right guidelines displayed on the exterior surface across the left and right front transition portion, the intermediate portion and the rear transition portion of the main body, to be placed along the wearer's groin, base of the thighs and gluteal fold.

[0010] The tape-type disposable diaper may further include a center point indicated on the exterior surface of the main body, indicating the center position of the portion of the left and right guide lines to be placed along the base of the wearer's thighs.

[0011] The tape-type disposable diaper may further include left and right standing sheets for standing on lines along the left and right side edges of the middle portion of the main body, and left and right standing elastic materials arranged along the free ends of the left and right standing sheets.

[0012] In the tape-type disposable diaper, the absorbent body may have two left and right constrictions and left and right bulging portions between the constrictions.

[0013] In the tape-type disposable diaper, the absorbent body may have two left and right constrictions and left and right bulges between the constrictions, and the left and right inner elastic materials may be positioned near the base ends of the left and right bulges.

[0014] The present invention is not limited to the above objects or aspects. A more complete understanding of the present invention and many of the advantages thereof will become more readily apparent from the following detailed description taken in conjunction with the associated drawings. [Brief description of the drawings]

[0015] [Figure 1] FIG. 2 is a bottom view of a tape-type disposable diaper according to an embodiment of the present invention in a state in which the elastic material is not exerting elastic force. [Diagram 2] FIG. 2 is a schematic end view of the tape-type disposable diaper of FIG. 1 taken along line II-II. [Diagram 3] FIG. 3 is a schematic end view of the tape-type disposable diaper of FIG. 1 taken along line III-III. [Figure 4]2 is a photograph showing the back of the tape-type disposable diaper of FIG. 1 when worn. [Diagram 5] 2 is a photograph showing the front of the tape-type disposable diaper of FIG. 1 when worn. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0016] A tape-type disposable diaper according to one embodiment of the present invention will be described with reference to Figs.

[0017] The main body 2 of the tape-type disposable diaper 1 has a longitudinal direction as the front-rear direction and a width direction as the left-right direction. As shown in Fig. 1, the main body 2 has an overall shape in which the width of a middle part M in the longitudinal direction of a rectangle is narrowed. The main body 2 has a front part F which is one end in the longitudinal direction, and a rear part B which is the other end and is longer than the front part F. A front transition part FM extending from the front part F to the middle part M, and a rear transition part BM extending from the rear part B to the middle part M, narrow in width toward the middle part M.

[0018] The main body 2 comprises a liquid-permeable top sheet 4, a liquid-impermeable bottom sheet 5, and a liquid-retentive absorbent body 3 contained between the top sheet 4 and the bottom sheet 5.

[0019] The absorbent body 3 quickly absorbs liquids such as urine discharged from the wearer and retains them inside. The absorbent body 3 is made from raw materials including absorbent fibers obtained by defibrating roll-sheet pulp, and powdered or granular highly absorbent polymer. These raw materials are conveyed by air to a mold placed on the circumferential surface of a suction drum, sucked into the mold, and deposited therein to be molded. The absorbent body 3 is formed by sandwiching the molded product 3a between two sheets of absorbent paper 3b and 3c.

[0020] The top sheet 4 constitutes the wearer-facing surface of the main body 2. The top sheet 4 covers the wearer-facing surface of the absorbent body 3, and the two are fixed together with an adhesive, etc. The top sheet 4 is liquid-permeable, and allows liquids such as urine excreted by the wearer to pass through and move into the absorbent body 3.

[0021] The top sheet 4 is made of a liquid-permeable nonwoven fabric, for example, a nonwoven fabric made of chemical fibers such as polyethylene, polypropylene, polyester, nylon, rayon, etc., or natural fibers such as cotton, cellulose, etc., or a combination thereof. The top sheet 4 is not limited to the above nonwoven fabrics, and may be made of any suitable liquid-permeable material, for example, a perforated film, a tissue, or a sheet made by appropriately joining them together.

[0022] The bottom sheet 5 covers the lower surface of the absorbent body 3, and the two are fixed together with an adhesive, etc. The bottom sheet 5 is liquid impermeable and prevents excrement that has permeated the top sheet 4 and excrement that has not been absorbed or retained by the absorbent body 3 from leaking out.

[0023] The bottom sheet 5 is made of, for example, a liquid-impermeable film such as polyethylene, polypropylene, polyester, etc., or a liquid-impermeable nonwoven fabric. The bottom sheet 5 is not limited to the above-mentioned film or nonwoven fabric, and may be made of an appropriate liquid-impermeable material, for example, a liquid-impermeable elastic material, a material coated with a waterproof adhesive, a laminate thereof, or a sheet made by appropriately connecting the above.

[0024] The main body 2 further includes an exterior sheet 6 that constitutes the exterior surface of the main body 2. The exterior sheet 6 is disposed under the bottom sheet 5, and the two are fixed together with an adhesive or the like. As shown in Figures 2 and 3, in this embodiment, two exterior sheets 6, 6 are disposed in a stacked manner under the bottom sheet 5. The three sheets are fixed together with an adhesive or the like.

[0025] The exterior sheet 6 is made of, for example, chemical fibers such as polyethylene, polypropylene, polyester, nylon, rayon, etc., natural fibers such as cotton, cellulose, etc., or a nonwoven fabric made of a combination of these. The exterior sheet 6 may be less liquid-impermeable than the bottom sheet 5.

[0026] Furthermore, the tape-type disposable diaper 1 includes two tapes 7 (7L1, 7L2, 7R1, 7R2) protruding outward from the left and right side edges 2L, 2R of the rear portion B of the main body 2. The protruding ends of the tapes 7 (7L1, 7L2, 7R1, 7R2) are provided with fastening portions 8 (8L1, 8L2, 8R1, 8R2) that are detachable from the exterior surface of the front portion F or the front transition portion FM of the main body 2.

[0027] The tapes 7 (7L1, 7L2, 7R1, 7R2) are fixed near the left and right side edges 2L, 2R of the rear portion B of the main body 2 by adhesive, heat welding, etc. The tapes 7 are made of chemical fibers such as polyethylene, polypropylene, polyester, nylon, rayon, etc., or natural fibers such as cotton, cellulose, etc., or nonwoven fabrics made of combinations of these.

[0028] The tapes 7 are not limited to the nonwoven fabric described above. For example, a part or all of the tapes 7 may be made of an elastic material. When a part or all of the tapes 7 are made of an elastic material, the position at which the fastening parts 8 are attached to and detached from the exterior surface of the main body 2 can be appropriately adjusted by the elasticity of the tapes 7 when the tape-type disposable diaper 1 is worn. This further improves the fit and size adaptability of the tape-type disposable diaper 1 to the wearer.

[0029] The fastening parts 8 that are detachably attached to the exterior surface of the main body 2 can be selected according to the material of the exterior surface of the main body 2. For example, if the material constituting the exterior surface of the main body 2 is a nonwoven fabric, a hook-and-loop fastener having a collection of small hook pieces that can be detachably hooked onto the material can be used. Also, the fastening parts 8 may be adhesive tapes having adhesive properties.

[0030] In the tape-type disposable diaper 1, a target tape 9 is provided on the surface of the exterior sheet 6 in the front portion F and the front transition portion FM of the main body 2. The target tape 9 constitutes an exterior surface that allows the fastening portions 8 (8L1, 8L2, 8R1, 8R2) to be attached and detached.

[0031] As shown in FIG. 1, the target tape 9 constituting the exterior surface of the front portion F and the front transition portion FM of the main body 2 has targets 10 printed thereon, which are markers that assist in determining the positions for attaching and detaching each fastening portion 8.

[0032] Furthermore, the tape-type disposable diaper 1 includes left and right outer elastic members 11L and 11R consisting of a group of thread-like elastic members arranged near the left and right side edges 2L and 2R of the main body 2, left and right inner elastic members 12L and 12R consisting of a group of thread-like elastic members arranged closer to the left and right center lines C1 than the left and right outer elastic members 11L and 11R, and a rear end elastic member 13 arranged in the width direction near the rear end edge 2B of the rear portion B of the main body 2.

[0033] 3, the left and right outer stretchable materials 11L, 11R and the left and right inner stretchable materials 12L, 12R are stretchably joined between the two exterior sheets 6, 6 by adhesive, heat welding, etc. Without being limited to the above, for example, the left and right outer stretchable materials 11L and 11R or the left and right inner stretchable materials 12L and 12R may be joined between the exterior sheet 6 and the bottom sheet 5.

[0034] As shown in Figures 1 and 2, the tape-type disposable diaper 1 further includes a flap 15 whose base end is fixed near the rear edge 2B of the rear part B of the main body 2 and whose free end has a flap elastic material 14 arranged in the left-right direction along it. The rear end elastic material 13 is provided within the base end of the flap 15 and is joined with an adhesive or the like so as to be stretchable in the left-right direction. The flap elastic material 14 is joined with an adhesive or the like within the free end of the flap 15 so as to be stretchable in the left-right direction. The base end side of the flap 15 is fixed to the rear part B of the main body 2, and the free end side is capable of standing up.

[0035] The left and right outer elastic members 11L, 11R and the left and right inner elastic members 12L, 12R are arranged diagonally along the left and right side edges 2L or 2R at the rear transition portion BM, arranged substantially parallel to the left and right side edges 2L or 2R at the rear portion M, and arranged diagonally toward the left and right center line C1 near the rear end edge 2B of the rear portion B. The rear end elastic member 13 is arranged to connect between the left and right inner elastic members 12L and 12R. As a result, the outer elastic members 11L, 11R, the inner elastic members 12L, 12R, and the rear end elastic member 13 are arranged in a substantially arc shape at the rear transition portion BM and the rear portion B of the main body 2. As shown in FIG. 4, the rear transition portion BM and the rear portion B of the main body 2 have a bulging structure 16 that fits along the buttocks of the wearer when worn and has an excrement storage space between the buttocks.

[0036] According to the tape-type disposable diaper 1, the outer elastic members 11L, 11R, the inner elastic members 12L, 12R, and the rear end elastic member 13 are arranged in a substantially arc shape in the rear transition portion BM and the rear portion B of the main body 2, so that the rear transition portion BM and the rear portion B of the main body 2 fit along the wearer's buttocks, eliminating any gap between the diaper and the wearer and preventing leakage of excrement. Furthermore, the rear transition portion BM and the rear portion B of the main body 2 are provided with a bulging structure 16 having an excrement storage space between the wearer and the buttocks when worn, so that even if a large amount of excrement is produced, it can be retained, and leakage of excrement can be more reliably prevented. In this way, the tape-type disposable diaper can be worn like a pants-type diaper with a bulging structure.

[0037] If the tape-type disposable diaper 1 is not properly fitted along the wearer's groin, thigh base and gluteal fold, a gap will be created between the diaper and the wearer, causing a problem of leakage of excrement held in the excrement storage space of the expansion structure 16. Therefore, it is important to properly fit the tape-type disposable diaper 1 so as to prevent the creation of a gap between the diaper and the wearer.

[0038] Therefore, the tape-type disposable diaper 1 further includes left and right guidelines 17 and 18, which are to be placed along the wearer's groin, base of the thighs, and gluteal fold, and are indicated on the exterior surface across the left and right front transition portions FM, the middle portion M, and the rear transition portion BM of the main body 2. The left and right guidelines 17 and 18 each have left and right upper diagonal portions 17a and 18a, straight portions 17b and 18b, and lower diagonal portions 17c and 18c, which are to be placed along the wearer's groin, base of the thighs, and gluteal fold.

[0039] A method of putting the tape-type disposable diaper 1 on a wearer using the guidelines 17 and 18 will be described. First, the straight line portions 17b and 18b of the left and right guidelines 17 and 18 are placed along the base of the thighs, which is the boundary between the thighs and the crotch of the wearer. Next, the left and right lower diagonal portions 17c and 18c are placed along the gluteal groove, which is the boundary between the thighs and the buttocks of the wearer. Finally, the left and right upper diagonal portions 17a and 18a are placed along the groin of the wearer. After that, the fastening portions 8 (8L1, 8L2, 8R1, 8R2) provided on the tapes 7 (7L1, 7L2, 7R1, 7R2) are attached and fixed to the exterior surface of the front portion F or the front transition portion FM of the main body 2.

[0040] As in the above-mentioned wearing method, by putting on the tape-type disposable diaper 1 while first placing the guidelines 17 and 18 along the base of the wearer's thighs, then along the gluteal fold, and finally along the groin, it is possible to easily and reliably achieve the rear transition portion BM and rear portion B of the main body 2 fitting along the wearer's buttocks and providing the bulging structure 16 which has an excrement storage space between the buttocks and the guide lines 17 and 18.

[0041] Furthermore, the tape-type disposable diaper 1 has left and right center points 19L and 19R indicated on the exterior surface of the main body 2, which indicate the central positions of the straight line portions 17b and 18b of the left and right guide lines 17 and 18, which are to be placed along the base of the wearer's thighs.

[0042] In the method of putting the tape-type disposable diaper 1 on a wearer using the above-mentioned guidelines 17 and 18, when the straight line portions 17b and 18b are placed along the base of the wearer's thighs, which is the boundary between the thighs and the crotch, the straight line portions 17b and 18b can be easily and correctly identified by the left and right center points 19L and 19R.

[0043] As shown in Figures 1 and 3, the main body 2 of the tape-type disposable diaper 1 includes left and right standing sheets 20L and 20R for standing on crease lines 20L1 and 20R1 along the left and right side edges 2L and 2R in the middle portion M. The left and right standing sheets 20L and 20R are fixed to the top sheet 4 with an adhesive or the like between the crease line 20L1 and the left edge 2L, between the crease line 20R1 and the right edge 2R, along the front edge 2F, and along the rear edge 2B. The unfixed portions of the left and right standing sheets 20L and 20R form standing portions that stand from the top sheet 4 at the crease lines 20L1 and 20R.

[0044] The left and right standing stretchable materials 21L and 21R, which are made of a group of thread-like stretchable materials, are provided in the front-rear direction along the free ends 20L2 and 20R2 of the left and right standing sheets 20L and 20R. The left and right standing stretchable materials 21L and 21R are joined in a manner that allows them to stretch in the front-rear direction between two layers of the left and right standing sheets 20L and 20R folded back at the free ends 20L2 and 20R2.

[0045] As the left and right standing elastic materials 21L and 21R contract in the front-rear direction, the standing portions of the left and right standing sheets 20L and 20R form gathers and rise up from the top sheet 4. When the tape-type disposable diaper 1 is worn, the standing portions of the left and right standing sheets 20L and 20R come into close contact with the wearer, preventing excrement from leaking to the outside.

[0046] The left and right standing sheets 20L and 20R are made of, for example, a liquid-impermeable or water-repellent nonwoven fabric, and may be made of the same raw material as the bottom sheet 5 or the exterior sheet 6.

[0047] The outer elastic materials 11L and 11R, the inner elastic materials 12L and 12R, the rear end elastic material 13, the flap elastic material 14, and the standing elastic materials 21L and 21R are made of a stretchable material such as natural rubber, polyurethane resin, or olefin-based elastomer.

[0048] As shown in FIG. 1, the absorbent body 3 has a front portion 3F, a middle portion 3M and a rear portion 3B which correspond to the lower abdomen, crotch and buttocks of the wearer, respectively, and has left and right first waist portions 3d and 3e with narrower left and right widths between the front portion 3F and the middle portion 3M, and has left and right second waist portions 3f and 3g with narrower left and right widths between the middle portion 3M and the rear portion 3B.

[0049] The middle portion 3M of the absorbent body 3 has left and right bulging portions 3L and 3R that bulge outwardly between the first and second left constrictions 3d and 3f and between the first and second right constrictions 3e and 3g. Therefore, by disposing the left and right bulging portions 3L and 3R of the absorbent body 3 along the thighs of the wearer, the tape-type disposable diaper 1 can increase the absorption power of the middle portion M of the main body 2 and prevent leakage of excrement from the left and right.

[0050] By appropriately adjusting the width between the roots of the left and right bulges 3L and 3R of the absorbent 3 to the width of the wearer's crotch, the tape-type disposable diaper 1 fits the wearer's crotch better. The width between the roots of the left and right bulges 3L and 3R of the absorbent 3 is the distance between a line connecting the innermost parts of the left first and second constrictions 3d and 3f and a line connecting the innermost parts of the right constrictions 3e and 3g. The width between the roots of the left and right bulges 3L and 3R of the absorbent 3 is appropriately selected according to the size of the tape-type disposable diaper 1, and may be appropriately selected between 80 mm and 120 mm, for example.

[0051] The group of thread-like elastic materials constituting the left and right inner elastic materials 7L and 7R are arranged in parallel in the front-rear direction, overlapping the left and right bulging portions 3L and 3R of the absorbent body 3. Therefore, the left and right bulging portions 3L and 3R increase the absorption capacity of the middle portion 3M while being supported by the left and right inner elastic materials 7L and 7R, thereby preventing lateral leakage of excrement.

[0052] The tape-type disposable diaper of the present invention is not limited to the above-described embodiment, and includes, for example, modifications that can be understood from the embodiment and modifications that do not change the essence of the present invention.

[0053] For example, the tape-type disposable diaper of the present invention is not limited to one provided with the target tape 9. The target tape 9 may not be provided, and the fastening parts 8 may be attached to and detached from the exterior sheet 6 that constitutes the exterior surface of the front portion F and the front transition portion FM of the main body 2.

[0054] The target 10 is printed on the exterior sheet 6 that constitutes the exterior surface of the front portion F and the front transition portion FM of the main body 2, and the target tape 9 may be omitted. Also, a transparent target tape may be provided on the target 10 printed on the exterior sheet 6. Also, the target 10 may be omitted.

[0055] The tape-type disposable diaper of the present invention may not include the outer sheet 6, and the bottom sheet 5 may also serve as the outer sheet. In this case, the bottom sheet 5 is preferably made of a nonwoven fabric or the like that is liquid-impermeable and capable of engaging the fastening part 8. The target 10 that assists in determining the position for attaching and detaching the fastening part 8 may be printed on the outer surface of the bottom sheet 5, or the target tape 9 on which the target 10 is printed may be fixed.

[0056] The rear end elastic material 13 is disposed directly in the width direction near the rear end edge 2B of the rear portion B of the main body 2, and the flap elastic material 14 and the flap may be omitted.

[0057] The tape-type disposable diaper of the present invention does not necessarily have to include the left and right guidelines 17 and 18. However, when the left and right guidelines 17 and 18 are provided, it is possible to easily and reliably realize that the rear transition portion BM and the rear portion B of the main body 2 fit along the buttocks of the wearer and have the bulging structure 16 having an excrement storage space between the buttocks and the rear transition portion BM and the rear portion B of the main body 2.

[0058] The tape-type disposable diaper of the present invention does not necessarily have to include the left and right center points 19L and 19R. However, if the center points 19L and 19R are provided, when the straight line portions 17b and 18b of the left and right guidelines 17 and 18 are placed along the base of the thighs, which is the boundary between the thighs and the crotch of a wearer, in a method of wearing the tape-type disposable diaper, the straight line portions 17b and 18b can be easily and correctly recognized by the left and right center points 19L and 19R.

[0059] The tape-type disposable diaper of the present invention does not necessarily have to include the left and right standing sheets 20L and 20R and the standing elastic members 21L and 21R. Disposable diapers that do not include these are appropriate, for example, when the diaper is used by a wearer who produces a small amount of urine, or when it is desired to simplify the structure and manufacture the diaper at low cost.

[0060] In the tape-type disposable diaper of the present invention, the absorbent body 3 does not necessarily have to include the two left and right constrictions 3d, 3e, 3f, 3g and the left and right bulging portions 3L, 3R between the constrictions. Also, the left and right inner elastic members 12L and 12R do not necessarily have to be disposed near the base ends of the left and right bulging portions 3L, 3R. [Industrial Applicability]

[0061] INDUSTRIAL APPLICABILITY The present invention can be utilized to provide a tape-type disposable diaper having excellent fitting properties. [Explanation of symbols]

[0062] 1. Tape-type disposable diapers; 2···Main body; 2F: Front edge of body; 2B: Rear edge of body; 2L: Left edge of the body; 2R: right edge of body; 3···Absorber; 3d and 3f: left constriction; 3e and 3g: right constriction; 3L and 3R: Left and right bulges; 4···Top sheet; 5···Bottom sheet; 6···Exterior sheet; 7(7L1,7R1,7L2,7R2)···Tape; 8(8L1,8R1,8L2,8R2)···Fastening part; 9 ···Target tape; 11L and 11R: Left and right outer elastics; 12L and 12R: Left and right inner elastics; 13...rear end elastic material; 14···Elastic for flap; 15···flap; 16···Bulge structure; 17 and 18: Left and right guidelines; 19L and 19R: Left and right center points; 20L and 20R: Left and right standing seats; 20L2 and 20R2...free ends; 21L and 21R: Left and right standing elastics; F · · · Front part of the body; FM···Front transition part of main body; M···middle part of the body; BM: the rear transition part of the main body; and B Rear of the main unit

Claims

1. A main body containing a liquid-retaining absorbent body between a liquid-permeable top sheet and a liquid-impermeable bottom sheet, the main body having a rectangular overall shape with a narrower width at the middle part in the longitudinal direction, a front part which is one end in the longitudinal direction, and a rear part which is the other end and is longer than the front part, the front transition part extending from the front part to the middle part and the rear transition part extending from the rear part to the middle part being narrower in width toward the middle part, Tapes protruding outwardly from left and right side edges of the rear portion of the body; fastening portions provided on the protruding end of each tape and detachable from an exterior surface of the front portion or the front transition portion of the main body; Left and right outer elastic members each consisting of a group of thread-like elastic members disposed near the left and right side edges of the body; Left and right inner elastic members each consisting of a group of thread-like elastic members disposed closer to the left and right center lines than the left and right outer elastic members; a rear end elastic disposed widthwise near a rear end edge of the rear portion of the body; The outer elastic member and the inner elastic member are arranged diagonally along the left and right side edges at the rear transition portion, arranged approximately parallel to the left and right side edges at the rear portion, and arranged diagonally toward the left and right center lines near the rear end edge at the rear portion, and the rear end elastic member is arranged to connect at least between the left and right inner elastic members, so that the outer elastic member, the inner elastic member, and the rear end elastic member are arranged in an approximately arc shape at the rear transition portion and the rear portion of the main body, The rear transition section and the rear section of the main body are provided with a bulge structure that fits along the buttocks of the wearer when worn and has an excrement storage space between the buttocks and the bulge structure. A tape-type disposable diaper characterized by the above.

2. 2. The tape-type disposable diaper according to claim 1, wherein each of the fastening portions is detachably attached to a target tape provided on the exterior surface of the front portion or the front transition portion of the main body.

3. a flap having a base end fixed near the rear end edge of the rear portion of the main body and a flap stretch material disposed in the left-right direction at a free end thereof; 2. The tape-type disposable diaper according to claim 1, wherein the rear end elastic material is provided within the base end of the flap.

4. 2. The tape-type disposable diaper according to claim 1, further comprising left and right guidelines marked on the exterior surface across the front transition portion, the intermediate portion and the rear transition portion on the left and right sides of the main body, for aligning with the wearer's groin, base of the thighs and gluteal fold.

5. 5. The tape-type disposable diaper according to claim 4, further comprising a center point indicated on the exterior surface of the main body, the center point indicating the center position of the portion of the left and right guide lines to be placed along the base of the wearer's thighs.

6. 2. The tape-type disposable diaper according to claim 1, further comprising left and right standing sheets for standing on lines along the left and right side edges of the middle portion of the main body, and left and right standing elastic members arranged along the free ends of the left and right standing sheets.

7. 2. The tape-type disposable diaper according to claim 1, wherein the absorbent body has two constricted portions on each side and left and right sides, and left and right bulging portions between the constricted portions.

8. The absorbent body has two constricted portions on each side and two bulging portions on each side between the constricted portions, 2. The tape-type disposable diaper according to claim 1, wherein the left and right inner elastic members are disposed near base ends of the left and right bulging portions.

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