WO2024024176A1 - Tape-type disposable diaper - Google Patents

Tape-type disposable diaper Download PDF

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Publication number
WO2024024176A1
WO2024024176A1 PCT/JP2023/013976 JP2023013976W WO2024024176A1 WO 2024024176 A1 WO2024024176 A1 WO 2024024176A1 JP 2023013976 W JP2023013976 W JP 2023013976W WO 2024024176 A1 WO2024024176 A1 WO 2024024176A1
Authority
WO
WIPO (PCT)
Prior art keywords
tape
base sheet
type disposable
diaper
disposable diaper
Prior art date
Application number
PCT/JP2023/013976
Other languages
French (fr)
Japanese (ja)
Inventor
晃平 青地
Original Assignee
大王製紙株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 大王製紙株式会社 filed Critical 大王製紙株式会社
Priority to CN202380014455.6A priority Critical patent/CN118251198A/en
Publication of WO2024024176A1 publication Critical patent/WO2024024176A1/en

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/45—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape
    • A61F13/49—Absorbent articles specially adapted to be worn around the waist, e.g. diapers
    • A61F13/493—Absorbent articles specially adapted to be worn around the waist, e.g. diapers adjustable by adding or removing material, e.g. umbilical cord arrangements
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/56—Supporting or fastening means

Definitions

  • the present invention relates to a tape-type disposable diaper.
  • tape-type disposable diapers are known that are attached by locking fastening tapes provided on both sides of the dorsal side of the diaper body to the outer surface of the ventral side of the diaper body (for example, patented (See Document 1 and Patent Document 2).
  • Patent Document 1 describes a tape in which a linear tear portion is formed between two locking portions provided on a fastening tape, and the base sheet of the fastening tape can be divided by breaking the tear portion.
  • Disposable diapers are listed.
  • two tear lines are formed between two locking parts provided on a fastening tape, and a tab part is formed that connects the base ends of the two tear lines.
  • Tape-type disposable diapers are listed. In this case, the base sheet of the fastening tape can be divided at a position between the two locking parts by breaking the two tear lines while the grip part is being held.
  • the present invention has been made by focusing on the above-mentioned problem, and creates a gap between the divided base sheets at a position between adjacent locking parts, and also creates a gap between the divided base sheets.
  • the present invention provides a diaper main body in which a dorsal side part, a crotch part, and a ventral part are sequentially connected in the front-rear direction and are integrally formed, and one of both sides of the dorsal part and the ventral part.
  • a fastening tape that is provided in the diaper body, is separable in the front-rear direction, and is locked to the other of the dorsal side part and the ventral side part when the diaper main body is in use; a base sheet having a fixed end fixed to the diaper body and a free end opposite to the fixed end; a plurality of locking parts formed on the free end and arranged in parallel along the front-rear direction; , the base sheet is folded back at a position near the fixed end, and a joining area extending from the free end to the fixed end is set between the locking parts adjacent in the front-rear direction,
  • the bonding region is bonded to the diaper main body via a bonding structure, and a pair of breaking portions capable of breaking the base sheet along the bonding region are formed on both sides of the bonding region.
  • the tape-type disposable diaper of the present invention creates a gap between the divided base sheets at the position between the adjacent locking parts, and also creates a gap between the base sheets that is left between the divided base sheets.
  • the material sheet pieces do not get in the way.
  • FIG. 1 is a partially cutaway developed view showing the tape-type disposable diaper of Example 1.
  • FIG. FIG. 2 is a perspective view showing a state in which the tape-type disposable diaper of Example 1 is worn.
  • FIG. 2 is an enlarged view of section A in FIG. 1.
  • FIG. FIG. 2 is an explanatory diagram showing a state in which one of the broken parts formed in the fastening tape of Example 1 is broken.
  • FIG. 3 is an explanatory diagram showing a state in which the other broken portion formed in the fastening tape of Example 1 is broken. It is an important part enlarged view which shows the fastening tape of the 1st modification. It is an important part enlarged view which shows the fastening tape of the 2nd modification.
  • the tape-type disposable diaper 1 in Example 1 includes a diaper body 10 having a dorsal side portion 10X, a crotch portion 10Y, and a ventral side portion 10Z, and a fastening tape provided on the diaper body 10. It is equipped with 20.
  • the tape-type disposable diaper 1 of Example 1 is used as shown in FIG. Then, both sides of the dorsal side part 10X are stitched to the ventral side part 10Z.
  • the tape-type disposable diaper 1 may be used with an inner pad set inside.
  • the direction in which the back side portion 10X, crotch portion 10Y, and ventral side portion 10Z of the tape-type disposable diaper 1 are successively connected is referred to as the front-back direction D
  • the direction perpendicular to the front-back direction D is referred to as the width direction E.
  • the front-rear direction D is the direction in which the diaper main body 10 extends, with the front side corresponding to the ventral side of the wearer P and the rear side corresponding to the back side of the wearer P.
  • terms such as “upper and lower” and “inner and outer” are used with respect to the wearer P of the tape-type disposable diaper 1.
  • the diaper main body 10 of Example 1 is formed by integrally connecting a dorsal part 10X, a ventral part 10Z, and a crotch part 10Y between the dorsal part 10X and the ventral part 10Z. has been done. Note that there is no boundary or structural difference between the dorsal side part 10X and the crotch part 10Y, or between the ventral side part 10Z and the crotch part 10Y.
  • the diaper main body 10 includes a top sheet 11, a back sheet 12, an absorbent body 13, and a gather sheet 14.
  • the diaper main body 10 has an absorbent body 13 laminated between a top sheet 11 and a back sheet 12, a gather sheet 14 is further layered on top of the top sheet 11, and an appropriate area including at least the peripheral portion is coated with hot melt, etc. It is fixed by adhesive or welding.
  • the top sheet 11 is a sheet material placed on the wearer's P body side (inside).
  • the top sheet 11 has liquid permeability, which is a property of permeating liquid, and is formed of, for example, a liquid permeable nonwoven fabric.
  • the top sheet 11 allows body fluids to quickly pass toward the absorbent body 13.
  • the backsheet 12 is a sheet material placed on the clothing side (outside) facing the topsheet 11.
  • the back sheet 12 has liquid impermeability, which is a property of not allowing liquid to pass through, and is formed of, for example, a resin film.
  • the backsheet 12 prevents body fluids held by the absorbent core 13 from permeating, thereby preventing clothing and the like from getting wet.
  • the absorbent body 13 is a liquid absorbent material laminated between the top sheet 11 and the back sheet 12.
  • the absorbent body 13 includes absorbent polymer particles and pulp fibers, and may be wrapped with a core wrap sheet (not shown) made of crepe paper, nonwoven fabric, or the like.
  • the absorbent body 13 has a smaller outer shape than the top sheet 11 and the back sheet 12.
  • the absorbent body 13 may be a single layer or a multilayer.
  • the gather sheets 14 are elongated sheet materials arranged on both sides of the absorbent core 13 in the width direction E, fixed inside the top sheet 11, and extending in the front-rear direction D.
  • the gather sheet 14 is formed of, for example, a water-repellent or liquid-impermeable nonwoven fabric.
  • One end of the gather sheet 14 in the width direction E is fixed to the top sheet 11 by, for example, an adhesive such as hot melt, welding, or the like.
  • a plurality of first elastic elastic members 15a extending in the front-rear direction D and arranged in parallel in the width direction E are provided in a predetermined stretched state.
  • the first elastic stretchable member 15a is made of, for example, thread-like or band-like synthetic rubber.
  • the gather sheet 14 is expanded and contracted by the expansion and contraction force of the first elastic expansion and contraction member 15a, and prevents the wearer's P's excrement from leaking sideways.
  • a plurality of second elastic elastic members 15b extending in the front-rear direction D and arranged in parallel in the width direction E are provided in a region surrounding the wearer's P's feet when worn in a predetermined stretched state.
  • the second elastic stretchable member 15b is made of, for example, thread-like or band-like synthetic rubber.
  • the second elastic elastic member 15b is disposed on the outer side in the width direction E than the first elastic elastic member 15a, and extends along the side edge of the diaper main body 10.
  • the back sheet 12 is expanded and contracted by the expansion and contraction force of the second elastic expansion and contraction member 15b, and improves the fit of the diaper body 10 around the wearer's P feet.
  • a target sheet 16 is provided on the clothing side surface of the back sheet 12 of the ventral side portion 10Z of the diaper main body 10.
  • the target sheet 16 is a sheet that releasably locks the locking material 24b of the fastening tape 20.
  • the locking material 24b is a hook tape having locking protrusions
  • the target sheet 16 may have a sheet surface provided with a large number of loop yarns that can entangle the hook tape.
  • the locking material 24b is an adhesive material
  • the target sheet 16 may be a sheet with a smooth surface subjected to a release treatment.
  • the locking material 24b may be constituted by hook tape, and the target sheet 16 may be omitted.
  • the fastening tape 20 is locked by entangling the locking material 24b made of hook tape with the fibers of the backsheet 12.
  • the fastening tapes 20 are provided on both sides of the diaper body 10 in the width direction E in the back side portion 10X of the diaper body 10.
  • the fastening tape 20 has a base sheet 21 and a plurality of (here, two) locking portions 24 .
  • the base sheet 21 is a sheet material made of, for example, a nonwoven fabric, a plastic film, a polylaminated nonwoven fabric whose surface is covered with a thin film of polyethylene, paper, or a composite material thereof.
  • the base sheet 21 is made of a material with a higher basis weight than the top sheet 11, back sheet 12, etc. in order to prevent unnecessary tearing and stretching during use. Therefore, the tear strength of the general portion of the base sheet 21 is higher than the tear strength of the top sheet 11, back sheet 12, and the like.
  • the "general portion of the base sheet 21" is a region of the base sheet 21 in which a fractured portion 27, which will be described later, is not formed.
  • “tear strength” refers to strength against forces that pull the base sheet 21 in opposite directions along a direction parallel to the sheet surface, and strength against forces that pull the base sheet 21 in opposite directions along a direction perpendicular to the sheet surface. including at least one of the strength against pulling force.
  • the base sheet 21 has a fixed end 22 fixed to the diaper main body 10 and a free end 23 on the opposite side of the fixed end 22.
  • the fixed end 22 is sandwiched between the gather sheet 14 and the back sheet 12, and is fixed to the diaper body 10 by, for example, an adhesive such as hot melt, welding, or the like.
  • the free end 23 is directed outward in the width direction E from the diaper main body 10.
  • a plurality of (two) locking portions 24 are formed on the free end 23 of the base sheet 21 and are arranged in parallel along the front-rear direction D.
  • Each locking portion 24 has a flap portion 24a that further projects outward in the width direction E from the free end 23, and a locking member 24b provided on the flap portion 24a.
  • the flap portion 24a is formed by a part of the base sheet 21.
  • the locking material 24b is provided on the inner surface of the flap portion 24a, and may be made of, for example, a hook tape of a mechanical fastener (velcro fastener), an adhesive material, or the like.
  • the inner surface of the flap portion 24a is a surface that faces the target sheet 16 when the tape-type disposable diaper 1 is used.
  • the material and shape of the locking material 24b are not limited as long as it can be repeatedly locked and separated from the target sheet 16.
  • the base sheet 21 is folded back inside the diaper body 10 at a position near the fixed end 22 when the diaper body 10 is not in use. Further, the base sheet 21 is provided with a joining region 25 located between the locking portions 24 adjacent to each other in the front-rear direction D, as shown surrounded by a dashed line in FIG. 3 .
  • the fastening tapes 20 provided on both sides of the diaper main body 10 only the one shown on the right side in FIG. 1 is shown in FIG. 3, but the other fastening tape 20 shown on the left side in FIG. It has a similar configuration.
  • the joining region 25 of Example 1 is a region located at the center of the base sheet 21 in the front-rear direction D and extending along the width direction E from the free end 23 to the fixed end 22. Note that the width of the joining region 25 in the first embodiment in the front-rear direction D is constant from the free end 23 to the fixed end 22.
  • the joining region 25 is joined to the diaper main body 10 via a joining structure 26 (shown with diagonal lines in FIG. 3).
  • the bonding structure 26 is a structure for bonding the base sheet 21 to the diaper body 10 using ultrasonic bonding, fusion bonding, or the like.
  • the joining structure 26 of Example 1 uniformly joins almost the entire surface of the joining region 25 to the diaper main body 10.
  • each fracture portion 27 is constituted by a plurality of through holes 27 a that are arranged intermittently at regular intervals along the extending direction (width direction E) of the bonding region 25 and that penetrate the base sheet 21 .
  • the "through hole” includes a hole (opening) with an opening area and a slit (cut) without an opening area, and can be set to any shape such as a circular or elongated oval hole, a linear slit, etc. It is.
  • the through hole 27a of Example 1 is set in the shape of a linear slit having a predetermined length along the width direction E.
  • the base sheet 21 is broken along the bonding region 25 by breaking the uncut portion between the plurality of through holes 27a forming the breaking portion 27.
  • FIG. 4 when the base sheet 21 is torn at one of the breaking parts 27 formed on the ventral side of the joining area 25, a part of the base sheet 21 is expanded.
  • a first tape 20a is formed.
  • FIG. 5 when the base sheet 21 is torn by the other tearing part 27 formed on the back side of the bonding area 25, a part of the base sheet 21 is expanded.
  • a second tape 20b is formed. In this way, the base sheet 21 can be divided in the front-rear direction D by providing the breaking portion 27.
  • the bonding area 25 set on the base sheet 21 remains bonded to the diaper body 10 even if a part of the base sheet 21 is expanded to form the first tape 20a and the second tape 20b. (See Figure 5). As a result, a gap S is created in the front-rear direction D between the first tape 20a and the second tape 20b.
  • the caregiver When using the tape-type disposable diaper 1 of Example 1, the caregiver first unfolds the diaper body 10 into the state shown in FIG. 1. At this time, the base sheet 21 of the fastening tape 20 is folded back toward the diaper main body 10 at the fixed end 22, and the joining region 25 is joined to the diaper main body 10 via the joining structure 26.
  • the caregiver places the diaper main body 10 in a predetermined position (for example, under the supine wearer P) and unfolds the fastening tape 20. That is, the caregiver grasps one of the locking portions 24 disposed on the ventral side of the joining region 25 and pulls the base sheet 21 outward in the width direction E. As a result, the base sheet 21 is broken at one of the breaking parts 27 formed on the ventral side of the bonding region 25 . Then, the base sheet 21 is torn along the bonding region 25, and a portion of the base sheet 21 is developed to form the first tape 20a (see FIG. 4).
  • the caregiver grasps the other locking portion 24 located on the dorsal side of the joining region 25 and pulls the base sheet 21 outward in the width direction E.
  • the base sheet 21 is torn at the other breaking portion 27 formed on the back side of the bonding region 25 .
  • the base sheet 21 is torn along the bonding region 25, and a portion of the base sheet 21 is unfolded to form the second tape 20b (see FIG. 5).
  • the fastening tape 20 when the fastening tape 20 is unfolded, the first tape 20a or the second tape 20b is formed, and as a result, it is divided into two in the front-rear direction D.
  • the caregiver covers the lower abdomen of the wearer P with the diaper main body 10, locks the locking portions 24 of the fastening tape 20 to the target sheet 16, and stitches the dorsal side portion 10X and the ventral side portion 10Z.
  • the fastening tape 20 is, for example, cross-fastened (see FIG. 2).
  • Cross fastening means that the first tape 20a is fixed to the target sheet 16 with the free end 23 pulled upward, and the target sheet 16 is fixed with the free end 23 of the second tape 20b pulled downward. 16, and the first tape 20a and the second tape 20b intersect on the target sheet 16 in a substantially X-shape.
  • the caregiver locks the fastening tape 20 to the target sheet 16
  • the size of the diaper main body 10 can be matched to the physique of the wearer P by adjusting the locking method.
  • the base sheet 21 of the fastening tape 20 is folded back at the fixed end 22, and the joining area is set between the locking parts 24 adjacent to each other in the front-rear direction D.
  • 25 is joined to the diaper main body 10 via a joining structure 26.
  • a pair of breaking portions 27 that can break the base sheet 21 along the bonding region 25 are formed on both sides of the bonding region 25 in the front-rear direction D.
  • the base sheet 21 is torn at the breaking part 27, and the first tape 20a is joined in the front-back direction D with the joining area 25 set between the locking parts 24 in between.
  • the second tape 20b is divided into two parts. Further, at this time, the bonding region 25 remains bonded to the diaper main body 10 by the bonding structure 26. As a result, a gap S is created between the first tape 20a and the second tape 20b in the front-rear direction D by the amount of the joining area 25.
  • the tape-type disposable diaper 1 of Example 1 is arranged between the base sheet 21 (the first tape 20a and the second tape 20b) divided at the position between the locking parts 24 adjacent to each other in the front-rear direction D. A gap S can be created.
  • a gap S is created between the divided base sheet 21 (the first tape 20a and the second tape 20b), so that when the fastening tape 20 is cross-fastened, the base (fixed end 22) of the first tape 20a and the base (fixed end 22) of the second tape 20b are less likely to interfere with each other.
  • the helper can easily perform the cross fixing, and the gap that occurs around the legs of the wearer P can be appropriately suppressed.
  • the caregiver can tear the base sheet 21 from the tearing portion 27 at the same time as gripping the locking portion 24 and unfolding the fastening tape 20. Therefore, in the tape-type disposable diaper 1 of Example 1, after the fastening tape 20 adhered to the diaper body 10 with a temporary adhesive or the like is peeled off and expanded, the tape-type disposable diaper 1 breaks from the perforation provided in the base sheet. Compared to tape-type diapers, it is possible to reduce the burden on caregivers.
  • the joining region 25 remains joined to the diaper main body 10 even when the first tape 20a and the second tape 20b are unfolded. Therefore, the entire joint area 25 (base sheet piece) left between the divided base sheet 21 (first tape 20a and second tape 20b) is fixed to the diaper main body 10, and the locking portion 24 It won't get in the way when you lock it.
  • the tape-type disposable diaper 1 of Example 1 since the fastening tape 20 is divided into two at the time of use, the first tape 20a and the second tape 20b can be formed from one base sheet 21. Thereby, the tape-type disposable diaper 1 of Example 1 can suppress deterioration of operability when manufacturing the diaper main body 10.
  • the tape-type disposable diaper 1 of Example 1 can eliminate the need for an adhesive for temporarily fixing the folded fastening tape 20.
  • Example 1 Although the tape-type disposable diaper of the present invention has been described above based on Example 1, the specific configuration is not limited to Example 1, and as long as it does not depart from the gist of the invention according to each claim. , changes and additions to the design are permitted.
  • the bonding portion 28 is a portion where the base sheet 21, adhesive, etc. are integrated with the diaper body 10 by bonding. That is, in the tape-type disposable diaper 1 of Example 1, the entire surface of the joining area 25 is a joining part.
  • the joint portion 28 is harder than the general portion of the base sheet 21.
  • the area of the joint portion 28 is smaller compared to the fastening tape 20 of the first embodiment in which the entire surface of the joint region 25 is uniformly joined by the joint structure 26,
  • the bonding region 25A can be made soft.
  • the fastening tape 20A of the first modification can make the bonding region 25A soft against the skin.
  • a plurality of joint portions 28 of the same size are lined up at regular intervals.
  • the size of each joint 28 can be set arbitrarily, and joints 28 of different sizes may be lined up.
  • the intervals between the joint portions 28 may be unequal.
  • the width of the joining region 25 in the front-rear direction D is constant from the free end 23 to the fixed end 22.
  • the fastening tape 20B of the second modification shown in FIG. 7 and the fastening tape 20C of the third modification shown in FIG. The size may gradually increase from the free end 23 of the sheet 21 toward the fixed end 22.
  • the joining structure 26B joins only both ends of the joining region 25B in the front-rear direction D to the diaper main body 10 (see FIG. 7).
  • the joining structure 26B uniformly joins the entire surface of the joining region 25B to the diaper main body 10 (see FIG. 8).
  • the fastening tape 20B of the second modification and the fastening tape 20C of the third modification are such that when the base sheet 21 is divided into two in the front-rear direction D, the divided base sheet 21 (the first tape 20a and the second tape 20b) can be widened in the front-rear direction D toward the base (fixed end 22).
  • the fastening tape 20B of the second modification and the fastening tape 20C of the third modification have the base part (fixed end 22) of the first tape 20a and the base part (fixed end 22) of the second tape 20b in the embodiment. It can be made even more difficult to interfere with than 1.
  • the fastening tape 20B of the second modification has a smaller area in which the joining structure 26B is provided than the fastening tape 20C of the third modification. Therefore, the fastening tape 20B of the second modification can make the joining region 25B softer than the fastening tape 20C of the third modification.
  • both ends of the joining region 25B in the front-rear direction D are linearly joined by the joining structure 26B.
  • the entire surface of the joining region 25B is uniformly joined by the joining structure 26B.
  • the joining structures 26B are arranged intermittently along the extending direction (width direction E) of the joining region 25B. It may be composed of a plurality of joints.
  • Example 1 an example is shown in which the plurality of through holes 27a constituting the breaking portion 27 are set as linear cuts having a predetermined length along the width direction E. Ta.
  • the extending direction of each through hole 27a is set parallel to the extending direction (width direction E) of the bonding region 25.
  • the base sheet 21 does not break in the front-rear direction D (so-called horizontal tearing), and the extension of each through hole 27a
  • the current direction can be set arbitrarily.
  • each through hole 29a has a length L1 along the front-rear direction D from the second end 30b to the joint region 25D than a length L1 along the front-rear direction D from the first end 30a to the joint region 25D.
  • the length L2 may be set to be shorter.
  • the "first end 30a” is one of the longitudinal ends of each through hole 29a that is closer to the free end 23.
  • the "second end 30b" is the other end closer to the fixed end 22 of both ends in the longitudinal direction of each through hole 29a.
  • the fastening tape 20D of the fourth modification can prevent the base sheet 21 from breaking in the front-rear direction D.
  • each second bonding region 31 may be bonded to the diaper main body 10 via the second bonding structure 32.
  • the second bonding region is shown surrounded by a dashed line, and the second bonding structure 32 is shown with diagonal lines.
  • a second breaking portion 33 capable of breaking the base sheet 21 along the second bonding region 31 is provided at a position inside the second bonding region 31 in the front-rear direction D. It is formed.
  • the second breaking portion 33 is constituted by a plurality of through holes lined up at regular intervals along the width direction E.
  • both ends of the fastening tape 20E of the fifth modification in the front-rear direction D are fixed to the diaper main body 10. Therefore, when the fastening tape 20E of the fifth modification is deployed, the direction of force acting on the uncut portion between the plurality of through holes 27a constituting the fracture portion 27 is changed from the direction in which the joining region 25 extends ( The uncut portion can be cut cleanly along the width direction E).
  • the breaking portion 27 was constituted by a plurality of through holes 27a penetrating the base sheet 21.
  • the configuration of the breaking portion 27 is not limited to this.
  • the fastening tape 20F of the sixth modification shown in FIG. It may also be configured by a fused portion 34a.
  • the joint structure 26F is constituted by a plurality of joint parts 28F that are intermittently lined up along the extending direction (width direction E) of the joint region 25F. ing.
  • the fracture portion 34 is constituted by a plurality of fused portions 34a, the entire surface of the bonding region 25F may be uniformly bonded by the bonding structure 26F.
  • the fastening tape 20 has two locking portions 24 arranged in parallel in the front-rear direction D.
  • the number of locking portions 24 may be two or more.
  • the fastening tape 20 can be divided into three or more parts in the front-rear direction D.
  • the fastening tapes 20 were provided on both sides of the back side portion 10X of the diaper main body 10 and fastened to the ventral side portion 10Z.
  • the fastening tape 20 may be provided on both sides of the ventral side portion 10Z of the diaper main body 10 and may be fastened to the back side portion 10X.

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  • Health & Medical Sciences (AREA)
  • Epidemiology (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Absorbent Articles And Supports Therefor (AREA)

Abstract

In order to provide a tape-type disposable diaper in which a gap is formed between base material sheets divided at a position between adjacent locking portions and a base material sheet piece that remains between the divided base material sheets does not get in the way, a fastening tape (20) is provided with: a base material sheet (21) including a fixed end (22) that is fixed to a diaper body (10) and a free end (23) on the opposite side from the fixed end (22); and a plurality of locking portions (24) that are formed in the free end (23) and are aligned along the front-rear direction (D). The base material sheet (21) is folded in the vicinity of the fixed end (22), and a bonded region (25) that is established between the adjacent locking portions (24) and extends from the free end (23) to the fixed end (22) is bonded to the diaper body (10). A pair of separation portions (27) where the base material sheet (21) can be separated along the bonded region (25) are formed on either side of the bonded region (25).

Description

テープ式使い捨てオムツtape-type disposable diapers
　本発明は、テープ式使い捨てオムツに関するものである。 The present invention relates to a tape-type disposable diaper.
　従来、オムツ本体の背側部の両側部に設けられたファスニングテープを、オムツ本体の腹側部の外表面に係止することで装着されるテープ式使い捨てオムツが知られている（例えば、特許文献１及び特許文献２参照）。 Conventionally, tape-type disposable diapers are known that are attached by locking fastening tapes provided on both sides of the dorsal side of the diaper body to the outer surface of the ventral side of the diaper body (for example, patented (See Document 1 and Patent Document 2).
　ここで、特許文献１には、ファスニングテープに設けられた二つの係止部の間に線状の引裂き部が形成され、引裂き部を破断することでファスニングテープの基材シートを分割可能なテープ式使い捨てオムツが記載されている。また、特許文献２には、ファスニングテープに設けられた二つの係止部の間に、二本の切り裂き線が形成されると共に、二本の切り裂き線の基端相互をつなぐつまみ部が形成されたテープ式使い捨てオムツが記載されている。この場合、つまみ部の摘持状態で二本の切り裂き線を破断することで、二つの係止部の間の位置でファスニングテープの基材シートを分割可能としている。 Here, Patent Document 1 describes a tape in which a linear tear portion is formed between two locking portions provided on a fastening tape, and the base sheet of the fastening tape can be divided by breaking the tear portion. Disposable diapers are listed. Further, in Patent Document 2, two tear lines are formed between two locking parts provided on a fastening tape, and a tab part is formed that connects the base ends of the two tear lines. Tape-type disposable diapers are listed. In this case, the base sheet of the fastening tape can be divided at a position between the two locking parts by breaking the two tear lines while the grip part is being held.
特開２０２１－５２９３７号公報JP2021-52937A 特許第６０５２７２８号公報Patent No. 6052728
　ところで、特許文献１に記載のテープ式使い捨てオムツでは、ファスニングテープを引裂き線で分割した際、分割された基材シートの間に隙間が生じない。そのため、分割された基材シート片の一方を上向きに引き上げて係止し、他方を下向きに引き下げて係止するいわゆるクロス止めを行う際、各基材シート片の基部が干渉し、基材シート片を適切に止めることが難しいという問題があった。 By the way, in the tape-type disposable diaper described in Patent Document 1, when the fastening tape is divided along the tear line, no gap is created between the divided base sheets. Therefore, when performing so-called cross-locking, in which one of the divided base sheet pieces is pulled upward and locked, and the other is pulled down and locked, the base of each base sheet piece interferes, and the base sheet The problem was that it was difficult to properly stop the pieces.
　また、特許文献２に記載のテープ式使い捨てオムツでは、分割された基材シートの間に、二本の切り裂き線の間分の隙間が生じる。しかしながら、二本の切り裂き線の間に残された基材シート片は、つまみ部だけオムツ本体に固定され、その他の部分が垂れ下がる。そのため、二本の切り裂き線の間に残された基材シート片が、係止部を係止するときの邪魔になるおそれがあった。 Furthermore, in the tape-type disposable diaper described in Patent Document 2, a gap between the two tear lines is created between the divided base sheets. However, only the tab portion of the base sheet piece left between the two tear lines is fixed to the diaper body, and the other portion hangs down. Therefore, there was a risk that the base sheet piece left between the two tear lines would get in the way of locking the locking portion.
　本発明は、上記問題に着目してなされたもので、隣り合う係止部の間の位置で分割された基材シートの間に隙間を生じさせると共に、分割された基材シートの間に残された基材シート片が邪魔にならないテープ式使い捨てオムツを提供することを目的とする。 The present invention has been made by focusing on the above-mentioned problem, and creates a gap between the divided base sheets at a position between adjacent locking parts, and also creates a gap between the divided base sheets. To provide a tape-type disposable diaper in which the attached base sheet pieces do not get in the way.
　上記目的を達成するため、本発明は、背側部、股部、腹側部が前後方向に順に連なって一体に形成されたオムツ本体と、前記背側部及び前記腹側部の一方の両側部に設けられ、前記前後方向に分割可能であって、前記オムツ本体の使用時に前記背側部及び前記腹側部の他方に係止されるファスニングテープと、を備え、前記ファスニングテープは、前記オムツ本体に固定された固定端と、前記固定端と反対側の自由端と、を有する基材シートと、前記自由端に形成されると共に前記前後方向に沿って並列した複数の係止部と、を有し、前記基材シートは、前記固定端の近傍位置で折り返され、前記前後方向に隣り合う前記係止部の間に前記自由端から前記固定端まで延びる接合領域が設定され、前記接合領域は、接合構造を介して前記オムツ本体に接合され、前記接合領域の両側には、前記接合領域に沿って前記基材シートを破断可能な一対の破断部が形成されている構成とした。 In order to achieve the above object, the present invention provides a diaper main body in which a dorsal side part, a crotch part, and a ventral part are sequentially connected in the front-rear direction and are integrally formed, and one of both sides of the dorsal part and the ventral part. a fastening tape that is provided in the diaper body, is separable in the front-rear direction, and is locked to the other of the dorsal side part and the ventral side part when the diaper main body is in use; a base sheet having a fixed end fixed to the diaper body and a free end opposite to the fixed end; a plurality of locking parts formed on the free end and arranged in parallel along the front-rear direction; , the base sheet is folded back at a position near the fixed end, and a joining area extending from the free end to the fixed end is set between the locking parts adjacent in the front-rear direction, The bonding region is bonded to the diaper main body via a bonding structure, and a pair of breaking portions capable of breaking the base sheet along the bonding region are formed on both sides of the bonding region. .
　これにより、本発明のテープ式使い捨てオムツは、隣り合う係止部の間の位置で分割された基材シートの間に隙間を生じさせると共に、分割された基材シートの間に残された基材シート片が邪魔にならない。 As a result, the tape-type disposable diaper of the present invention creates a gap between the divided base sheets at the position between the adjacent locking parts, and also creates a gap between the base sheets that is left between the divided base sheets. The material sheet pieces do not get in the way.
実施例１のテープ式使い捨てオムツを示す一部破断展開図である。1 is a partially cutaway developed view showing the tape-type disposable diaper of Example 1. FIG. 実施例１のテープ式使い捨てオムツの着用状態を示す斜視図である。FIG. 2 is a perspective view showing a state in which the tape-type disposable diaper of Example 1 is worn. 図１におけるＡ部の拡大図である。FIG. 2 is an enlarged view of section A in FIG. 1. FIG. 実施例１のファスニングテープに形成された一方の破断部を破断した状態を示す説明図である。FIG. 2 is an explanatory diagram showing a state in which one of the broken parts formed in the fastening tape of Example 1 is broken. 実施例１のファスニングテープに形成された他方の破断部を破断した状態を示す説明図である。FIG. 3 is an explanatory diagram showing a state in which the other broken portion formed in the fastening tape of Example 1 is broken. 第１変形例のファスニングテープを示す要部拡大図である。It is an important part enlarged view which shows the fastening tape of the 1st modification. 第２変形例のファスニングテープを示す要部拡大図である。It is an important part enlarged view which shows the fastening tape of the 2nd modification. 第３変形例のファスニングテープを示す要部拡大図である。It is an important part enlarged view which shows the fastening tape of the 3rd modification. 第４変形例のファスニングテープを示す要部拡大図である。It is an important part enlarged view which shows the fastening tape of the 4th modification. 第５変形例のファスニングテープを示す要部拡大図である。It is an important part enlarged view which shows the fastening tape of the 5th modification. 第６変形例のファスニングテープを示す要部拡大図である。It is an important part enlarged view which shows the fastening tape of the 6th modification.
　本発明によるテープ式使い捨てオムツを実施するための形態は、図面に示す実施例１に基づいて以下のように説明される。 A form for implementing the tape-type disposable diaper according to the present invention will be explained as follows based on Example 1 shown in the drawings.
　実施例１におけるテープ式使い捨てオムツ１は、図１に示すように、背側部１０Ｘと、股部１０Ｙと、腹側部１０Ｚとを有するオムツ本体１０と、オムツ本体１０に設けられたファスニングテープ２０と、を備えている。そして、実施例１のテープ式使い捨てオムツ１は、図２に示す使用時に、オムツ本体１０によって着用者Ｐの背中から股を介して腹に亘って覆い、ファスニングテープ２０がターゲットシート１６に係止されて背側部１０Ｘの両側部が腹側部１０Ｚに綴じ合わせられる。なお、テープ式使い捨てオムツ１は、内側にインナーパッドがセットされて使用されてもよい。 As shown in FIG. 1, the tape-type disposable diaper 1 in Example 1 includes a diaper body 10 having a dorsal side portion 10X, a crotch portion 10Y, and a ventral side portion 10Z, and a fastening tape provided on the diaper body 10. It is equipped with 20. When the tape-type disposable diaper 1 of Example 1 is used as shown in FIG. Then, both sides of the dorsal side part 10X are stitched to the ventral side part 10Z. Note that the tape-type disposable diaper 1 may be used with an inner pad set inside.
　以下の説明では、テープ式使い捨てオムツ１の背側部１０Ｘ、股部１０Ｙ、腹側部１０Ｚが順に連なる方向を前後方向Ｄとし、前後方向Ｄに直交する方向を幅方向Ｅとする。前後方向Ｄは、オムツ本体１０の延在方向であり、前側が着用者Ｐの腹側に対応し、後側が着用者Ｐの背中側に対応する。また、テープ式使い捨てオムツ１の着用者Ｐを基準として「上下」「内外」等の用語が用いられる。 In the following description, the direction in which the back side portion 10X, crotch portion 10Y, and ventral side portion 10Z of the tape-type disposable diaper 1 are successively connected is referred to as the front-back direction D, and the direction perpendicular to the front-back direction D is referred to as the width direction E. The front-rear direction D is the direction in which the diaper main body 10 extends, with the front side corresponding to the ventral side of the wearer P and the rear side corresponding to the back side of the wearer P. Further, terms such as "upper and lower" and "inner and outer" are used with respect to the wearer P of the tape-type disposable diaper 1.
　実施例１のオムツ本体１０は、図１に示すように、背側部１０Ｘと、腹側部１０Ｚと、背側部１０Ｘと腹側部１０Ｚとの間の股部１０Ｙとが一体に連なって形成されている。なお、背側部１０Ｘと股部１０Ｙの間や、腹側部１０Ｚと股部１０Ｙの間には、境界や構造的な差異があるわけではない。そして、オムツ本体１０は、トップシート１１と、バックシート１２と、吸収体１３と、ギャザーシート１４と、を備えている。オムツ本体１０は、トップシート１１とバックシート１２と間に吸収体１３を積層した状態で、トップシート１１の上にさらにギャザーシート１４が重ねられ、少なくとも周縁部を含む適宜の領域がホットメルト等の接着剤や溶着等によって固定されて形成される。 As shown in FIG. 1, the diaper main body 10 of Example 1 is formed by integrally connecting a dorsal part 10X, a ventral part 10Z, and a crotch part 10Y between the dorsal part 10X and the ventral part 10Z. has been done. Note that there is no boundary or structural difference between the dorsal side part 10X and the crotch part 10Y, or between the ventral side part 10Z and the crotch part 10Y. The diaper main body 10 includes a top sheet 11, a back sheet 12, an absorbent body 13, and a gather sheet 14. The diaper main body 10 has an absorbent body 13 laminated between a top sheet 11 and a back sheet 12, a gather sheet 14 is further layered on top of the top sheet 11, and an appropriate area including at least the peripheral portion is coated with hot melt, etc. It is fixed by adhesive or welding.
　トップシート１１は、着用者Ｐの身体側（内側）に配置されたシート材である。トップシート１１は、液体を透過する特性である液透過性を有し、例えば、液透過性の不織布等で形成されている。トップシート１１は、吸収体１３に向けて、体液を速やかに通過させる。 The top sheet 11 is a sheet material placed on the wearer's P body side (inside). The top sheet 11 has liquid permeability, which is a property of permeating liquid, and is formed of, for example, a liquid permeable nonwoven fabric. The top sheet 11 allows body fluids to quickly pass toward the absorbent body 13.
　バックシート１２は、トップシート１１に対向して衣類側（外側）に配置されたシート材である。バックシート１２は、液体を透過させない特性である液不透過性を有し、例えば、樹脂フィルム等で形成されている。バックシート１２は、吸収体１３が保持した体液の透過を阻止して、衣類等を濡らさないようにする。 The backsheet 12 is a sheet material placed on the clothing side (outside) facing the topsheet 11. The back sheet 12 has liquid impermeability, which is a property of not allowing liquid to pass through, and is formed of, for example, a resin film. The backsheet 12 prevents body fluids held by the absorbent core 13 from permeating, thereby preventing clothing and the like from getting wet.
　吸収体１３は、トップシート１１とバックシート１２との間に積層された液体吸収材である。吸収体１３は、吸収性ポリマー粒子とパルプ繊維を含んで構成され、クレープ紙や不織布等からなる図示しないコアラップシートによって包まれてもよい。吸収体１３は、トップシート１１及びバックシート１２より、小さい外形を有する。吸収体１３は、単層であっても複層であってもよい。 The absorbent body 13 is a liquid absorbent material laminated between the top sheet 11 and the back sheet 12. The absorbent body 13 includes absorbent polymer particles and pulp fibers, and may be wrapped with a core wrap sheet (not shown) made of crepe paper, nonwoven fabric, or the like. The absorbent body 13 has a smaller outer shape than the top sheet 11 and the back sheet 12. The absorbent body 13 may be a single layer or a multilayer.
　ギャザーシート１４は、吸収体１３の幅方向Ｅの両側に配置され、トップシート１１の内側に固定された前後方向Ｄに延びる細長いシート材である。ギャザーシート１４は、例えば、撥水性又は液不透過性の不織布等によって形成されている。ギャザーシート１４の幅方向Ｅの一端は、例えばホットメルト等の接着剤や溶着等によってトップシート１１に固定される。ギャザーシート１４の幅方向Ｅの他端には、前後方向Ｄに延在し、幅方向Ｅに並列された複数の第１弾性伸縮部材１５ａが所定の伸張状態で設けられている。第１弾性伸縮部材１５ａは、例えば、糸状又は帯状の合成ゴム等によって構成される。ギャザーシート１４は、第１弾性伸縮部材１５ａの伸縮力によって伸縮し、着用者Ｐの排泄物の横漏れを防止する。 The gather sheets 14 are elongated sheet materials arranged on both sides of the absorbent core 13 in the width direction E, fixed inside the top sheet 11, and extending in the front-rear direction D. The gather sheet 14 is formed of, for example, a water-repellent or liquid-impermeable nonwoven fabric. One end of the gather sheet 14 in the width direction E is fixed to the top sheet 11 by, for example, an adhesive such as hot melt, welding, or the like. At the other end of the gather sheet 14 in the width direction E, a plurality of first elastic elastic members 15a extending in the front-rear direction D and arranged in parallel in the width direction E are provided in a predetermined stretched state. The first elastic stretchable member 15a is made of, for example, thread-like or band-like synthetic rubber. The gather sheet 14 is expanded and contracted by the expansion and contraction force of the first elastic expansion and contraction member 15a, and prevents the wearer's P's excrement from leaking sideways.
　さらに、着用時に着用者Ｐの足周りを囲む領域には、前後方向Ｄに延在し、幅方向Ｅに並列された複数の第２弾性伸縮部材１５ｂが所定の伸張状態で設けられている。第２弾性伸縮部材１５ｂは、例えば、糸状又は帯状の合成ゴム等によって構成される。第２弾性伸縮部材１５ｂは、第１弾性伸縮部材１５ａよりも幅方向Ｅの外側に配置され、オムツ本体１０の側縁に沿って延在されている。バックシート１２は、第２弾性伸縮部材１５ｂの伸縮力によって伸縮し、着用者Ｐの足周りにおけるオムツ本体１０のフィット感を向上させる。 Further, a plurality of second elastic elastic members 15b extending in the front-rear direction D and arranged in parallel in the width direction E are provided in a region surrounding the wearer's P's feet when worn in a predetermined stretched state. The second elastic stretchable member 15b is made of, for example, thread-like or band-like synthetic rubber. The second elastic elastic member 15b is disposed on the outer side in the width direction E than the first elastic elastic member 15a, and extends along the side edge of the diaper main body 10. The back sheet 12 is expanded and contracted by the expansion and contraction force of the second elastic expansion and contraction member 15b, and improves the fit of the diaper body 10 around the wearer's P feet.
　そして、オムツ本体１０の腹側部１０Ｚのバックシート１２の衣類側の表面には、ターゲットシート１６が設けられている。ターゲットシート１６は、ファスニングテープ２０の係止材２４ｂを剥離可能に係止するシートである。ターゲットシート１６は、例えば、係止材２４ｂが係止突起を有するフックテープの場合、シート表面にフックテープが絡まるようなループ糸が多数設けられたものを用いることができる。ターゲットシート１６は、例えば、係止材２４ｂが粘着材の場合、表面が平滑なシートの表面に剥離処理を施したものを用いることができる。なお、バックシート１２の衣類側の表面が不織布からなる場合には、係止材２４ｂをフックテープによって構成し、ターゲットシート１６を省略してもよい。この場合、ファスニングテープ２０は、フックテープからなる係止材２４ｂをバックシート１２の繊維に絡ませて係止される。 A target sheet 16 is provided on the clothing side surface of the back sheet 12 of the ventral side portion 10Z of the diaper main body 10. The target sheet 16 is a sheet that releasably locks the locking material 24b of the fastening tape 20. For example, when the locking material 24b is a hook tape having locking protrusions, the target sheet 16 may have a sheet surface provided with a large number of loop yarns that can entangle the hook tape. For example, when the locking material 24b is an adhesive material, the target sheet 16 may be a sheet with a smooth surface subjected to a release treatment. In addition, when the surface of the back sheet 12 on the clothing side is made of a nonwoven fabric, the locking material 24b may be constituted by hook tape, and the target sheet 16 may be omitted. In this case, the fastening tape 20 is locked by entangling the locking material 24b made of hook tape with the fibers of the backsheet 12.
　ファスニングテープ２０は、図１に示すように、オムツ本体１０の背側部１０Ｘにおいて、オムツ本体１０の幅方向Ｅの両側部に設けられる。ファスニングテープ２０は、基材シート２１と、複数（ここでは二つ）の係止部２４と、を有している。 As shown in FIG. 1, the fastening tapes 20 are provided on both sides of the diaper body 10 in the width direction E in the back side portion 10X of the diaper body 10. The fastening tape 20 has a base sheet 21 and a plurality of (here, two) locking portions 24 .
　基材シート２１は、例えば、不織布、プラスチックフィルム、ポリエチレンの薄膜で表面を覆ったポリラミ不織布、紙、これらの複合素材等からなるシート材である。基材シート２１は、使用中の不要な破れや伸びを防止するため、トップシート１１やバックシート１２等よりも高目付の素材が用いられる。そのため、基材シート２１の一般部の引き裂き強度は、トップシート１１やバックシート１２等の引き裂き強度よりも高い。ここで、「基材シート２１の一般部」とは、基材シート２１のうち、後述する破断部２７が形成されていない領域である。また、「引き裂き強度」とは、基材シート２１をシート面に平行な方向に沿って互いに反対向きに引っ張る力に対する強度と、基材シート２１をシート面に垂直な方向に沿って互いに反対向きに引っ張る力に対する強度の少なくとも一方を含む。 The base sheet 21 is a sheet material made of, for example, a nonwoven fabric, a plastic film, a polylaminated nonwoven fabric whose surface is covered with a thin film of polyethylene, paper, or a composite material thereof. The base sheet 21 is made of a material with a higher basis weight than the top sheet 11, back sheet 12, etc. in order to prevent unnecessary tearing and stretching during use. Therefore, the tear strength of the general portion of the base sheet 21 is higher than the tear strength of the top sheet 11, back sheet 12, and the like. Here, the "general portion of the base sheet 21" is a region of the base sheet 21 in which a fractured portion 27, which will be described later, is not formed. In addition, "tear strength" refers to strength against forces that pull the base sheet 21 in opposite directions along a direction parallel to the sheet surface, and strength against forces that pull the base sheet 21 in opposite directions along a direction perpendicular to the sheet surface. including at least one of the strength against pulling force.
　基材シート２１は、オムツ本体１０に固定された固定端２２と、固定端２２と反対側の自由端２３と、を有している。固定端２２は、ギャザーシート１４とバックシート１２との間に挟まれ、例えばホットメルト等の接着剤や溶着等によってオムツ本体１０に固定される。自由端２３は、オムツ本体１０から幅方向Ｅの外側に向けられる。 The base sheet 21 has a fixed end 22 fixed to the diaper main body 10 and a free end 23 on the opposite side of the fixed end 22. The fixed end 22 is sandwiched between the gather sheet 14 and the back sheet 12, and is fixed to the diaper body 10 by, for example, an adhesive such as hot melt, welding, or the like. The free end 23 is directed outward in the width direction E from the diaper main body 10.
　複数（二つ）の係止部２４は、基材シート２１の自由端２３に形成され、前後方向Ｄに沿って並列している。各係止部２４は、自由端２３からさらに幅方向Ｅの外側に突出したフラップ部２４ａと、フラップ部２４ａに設けられた係止材２４ｂと、を有している。 A plurality of (two) locking portions 24 are formed on the free end 23 of the base sheet 21 and are arranged in parallel along the front-rear direction D. Each locking portion 24 has a flap portion 24a that further projects outward in the width direction E from the free end 23, and a locking member 24b provided on the flap portion 24a.
　フラップ部２４ａは、基材シート２１の一部によって形成されている。 The flap portion 24a is formed by a part of the base sheet 21.
　係止材２４ｂは、フラップ部２４ａの内側面に設けられ、例えば、メカニカルファスナー（面ファスナー）のフックテープや、粘着材等を用いることができる。なお、フラップ部２４ａの内側面は、テープ式使い捨てオムツ１の使用時にターゲットシート１６に対向する面である。また、係止材２４ｂは、ターゲットシート１６に対し、係止と剥離を繰り返すことが可能であれば材質や形状等は問わない。 The locking material 24b is provided on the inner surface of the flap portion 24a, and may be made of, for example, a hook tape of a mechanical fastener (velcro fastener), an adhesive material, or the like. Note that the inner surface of the flap portion 24a is a surface that faces the target sheet 16 when the tape-type disposable diaper 1 is used. Furthermore, the material and shape of the locking material 24b are not limited as long as it can be repeatedly locked and separated from the target sheet 16.
　そして、実施例１のテープ式使い捨てオムツ１におけるファスニングテープ２０は、オムツ本体１０の未使用時、基材シート２１が、固定端２２の近傍位置でオムツ本体１０の内側に折り返されている。また、基材シート２１には、図３において一点鎖線で囲んで示されたように、前後方向Ｄに隣り合う係止部２４の間に位置する接合領域２５が設定されている。なお、図３には、オムツ本体１０の両側部に設けられたファスニングテープ２０のうち、図１において右側に示すもののみが図示されているが、図１において左側に示す他方のファスニングテープ２０も同様の構成である。 In the fastening tape 20 in the tape-type disposable diaper 1 of Example 1, the base sheet 21 is folded back inside the diaper body 10 at a position near the fixed end 22 when the diaper body 10 is not in use. Further, the base sheet 21 is provided with a joining region 25 located between the locking portions 24 adjacent to each other in the front-rear direction D, as shown surrounded by a dashed line in FIG. 3 . Of the fastening tapes 20 provided on both sides of the diaper main body 10, only the one shown on the right side in FIG. 1 is shown in FIG. 3, but the other fastening tape 20 shown on the left side in FIG. It has a similar configuration.
　実施例１の接合領域２５は、基材シート２１の前後方向Ｄの中央部に位置し、幅方向Ｅに沿って自由端２３から固定端２２まで延びた領域である。なお、実施例１の接合領域２５は、前後方向Ｄの幅が自由端２３から固定端２２まで一定である。そして、接合領域２５は、接合構造２６（図３において斜線を付して示される）を介してオムツ本体１０に接合されている。接合構造２６は、超音波接着や融着等、基材シート２１をオムツ本体１０に接合する構造である。実施例１の接合構造２６は、オムツ本体１０に対し、接合領域２５のほぼ全面を一様に接合する。 The joining region 25 of Example 1 is a region located at the center of the base sheet 21 in the front-rear direction D and extending along the width direction E from the free end 23 to the fixed end 22. Note that the width of the joining region 25 in the first embodiment in the front-rear direction D is constant from the free end 23 to the fixed end 22. The joining region 25 is joined to the diaper main body 10 via a joining structure 26 (shown with diagonal lines in FIG. 3). The bonding structure 26 is a structure for bonding the base sheet 21 to the diaper body 10 using ultrasonic bonding, fusion bonding, or the like. The joining structure 26 of Example 1 uniformly joins almost the entire surface of the joining region 25 to the diaper main body 10.
　さらに、基材シート２１には、接合領域２５の前後方向Ｄの両側に一対の破断部２７が形成されている。各破断部２７は、接合領域２５の延在方向（幅方向Ｅ）に沿って一定の間隔で間欠的に並ぶと共に、基材シート２１を貫通する複数の貫通孔２７ａによって構成されている。ここで、「貫通孔」は、開口面積を有する穴（開口）や、開口面積を有さないスリット（切れ目）を含み、円形や細長い楕円の穴、線状のスリット等任意の形状に設定可能である。実施例１の貫通孔２７ａは、幅方向Ｅに沿って所定の長さを有する線状のスリット形状に設定されている。 Furthermore, a pair of broken portions 27 are formed in the base sheet 21 on both sides of the bonding region 25 in the front-back direction D. Each fracture portion 27 is constituted by a plurality of through holes 27 a that are arranged intermittently at regular intervals along the extending direction (width direction E) of the bonding region 25 and that penetrate the base sheet 21 . Here, the "through hole" includes a hole (opening) with an opening area and a slit (cut) without an opening area, and can be set to any shape such as a circular or elongated oval hole, a linear slit, etc. It is. The through hole 27a of Example 1 is set in the shape of a linear slit having a predetermined length along the width direction E.
　そして、基材シート２１は、破断部２７を構成する複数の貫通孔２７ａの間のアンカット部分が破断されることで、接合領域２５に沿って破断される。つまり、基材シート２１は、図４に示されたように、接合領域２５よりも腹側に形成された一方の破断部２７によって破断されると、基材シート２１の一部が展開して第１テープ２０ａが形成される。また、基材シート２１は、図５に示されたように、接合領域２５よりも背側に形成された他方の破断部２７によって破断されると、基材シート２１の一部が展開して第２テープ２０ｂが形成される。このように、基材シート２１は、破断部２７が設けられたことで前後方向Ｄに分割可能である。 Then, the base sheet 21 is broken along the bonding region 25 by breaking the uncut portion between the plurality of through holes 27a forming the breaking portion 27. In other words, as shown in FIG. 4, when the base sheet 21 is torn at one of the breaking parts 27 formed on the ventral side of the joining area 25, a part of the base sheet 21 is expanded. A first tape 20a is formed. Further, as shown in FIG. 5, when the base sheet 21 is torn by the other tearing part 27 formed on the back side of the bonding area 25, a part of the base sheet 21 is expanded. A second tape 20b is formed. In this way, the base sheet 21 can be divided in the front-rear direction D by providing the breaking portion 27.
　また、基材シート２１に設定された接合領域２５は、基材シート２１の一部が展開して第１テープ２０ａや第２テープ２０ｂが形成されても、オムツ本体１０に接合したままとなる（図５参照）。これにより、第１テープ２０ａと第２テープ２０ｂの間には、前後方向Ｄに隙間Ｓが生じる。 Further, the bonding area 25 set on the base sheet 21 remains bonded to the diaper body 10 even if a part of the base sheet 21 is expanded to form the first tape 20a and the second tape 20b. (See Figure 5). As a result, a gap S is created in the front-rear direction D between the first tape 20a and the second tape 20b.
　実施例１のテープ式使い捨てオムツ１の作用は、以下のように説明される。 The operation of the tape-type disposable diaper 1 of Example 1 will be explained as follows.
　実施例１のテープ式使い捨てオムツ１を使用する際、まず、介助者は、オムツ本体１０を図１に示された状態に広げる。このとき、ファスニングテープ２０の基材シート２１は、固定端２２でオムツ本体１０側に折り返され、接合領域２５が接合構造２６を介してオムツ本体１０に接合されている。 When using the tape-type disposable diaper 1 of Example 1, the caregiver first unfolds the diaper body 10 into the state shown in FIG. 1. At this time, the base sheet 21 of the fastening tape 20 is folded back toward the diaper main body 10 at the fixed end 22, and the joining region 25 is joined to the diaper main body 10 via the joining structure 26.
　次に、介助者は、オムツ本体１０を所定の位置（例えば、仰臥状態の着用者Ｐの下）に置き、ファスニングテープ２０を展開する。すなわち、介助者は、接合領域２５よりも腹側に配置された一方の係止部２４を把持し、基材シート２１を幅方向Ｅの外側に向かって引っ張る。これにより、基材シート２１は、接合領域２５よりも腹側に形成された一方の破断部２７によって破断される。そして、基材シート２１は接合領域２５に沿って破断され、基材シート２１の一部が展開されて第１テープ２０ａが形成される（図４参照）。 Next, the caregiver places the diaper main body 10 in a predetermined position (for example, under the supine wearer P) and unfolds the fastening tape 20. That is, the caregiver grasps one of the locking portions 24 disposed on the ventral side of the joining region 25 and pulls the base sheet 21 outward in the width direction E. As a result, the base sheet 21 is broken at one of the breaking parts 27 formed on the ventral side of the bonding region 25 . Then, the base sheet 21 is torn along the bonding region 25, and a portion of the base sheet 21 is developed to form the first tape 20a (see FIG. 4).
　続いて、介助者は、接合領域２５よりも背側に配置された他方の係止部２４を把持し、基材シート２１を幅方向Ｅの外側に向かって引っ張る。これにより、基材シート２１は、接合領域２５よりも背側に形成された他方の破断部２７によって破断される。そして、基材シート２１は接合領域２５に沿って破断され、基材シート２１の一部が展開されて第２テープ２０ｂが形成される（図５参照）。 Next, the caregiver grasps the other locking portion 24 located on the dorsal side of the joining region 25 and pulls the base sheet 21 outward in the width direction E. As a result, the base sheet 21 is torn at the other breaking portion 27 formed on the back side of the bonding region 25 . Then, the base sheet 21 is torn along the bonding region 25, and a portion of the base sheet 21 is unfolded to form the second tape 20b (see FIG. 5).
　つまり、ファスニングテープ２０は、展開されると同時に第１テープ２０ａ又は第２テープ２０ｂが形成され、結果的に前後方向Ｄに二つに分割される。 That is, when the fastening tape 20 is unfolded, the first tape 20a or the second tape 20b is formed, and as a result, it is divided into two in the front-rear direction D.
　そして、介助者は、オムツ本体１０によって着用者Ｐの下腹部を覆い、ファスニングテープ２０の係止部２４をターゲットシート１６に係止して背側部１０Ｘと腹側部１０Ｚを綴じ合わせる。このとき、ファスニングテープ２０は、例えばクロス止め（図２参照）される。「クロス止め」とは、第１テープ２０ａの自由端２３が上側に引き上げられた状態でターゲットシート１６に係止され、第２テープ２０ｂの自由端２３が下側に引き下げられた状態でターゲットシート１６に係止され、第１テープ２０ａと第２テープ２０ｂがターゲットシート１６上でほぼＸ字状に交差する止め方である。なお、介助者は、ファスニングテープ２０をターゲットシート１６に係止する際、止め方を調整することで、オムツ本体１０の大きさを着用者Ｐの体格に合わせることができる。 Then, the caregiver covers the lower abdomen of the wearer P with the diaper main body 10, locks the locking portions 24 of the fastening tape 20 to the target sheet 16, and stitches the dorsal side portion 10X and the ventral side portion 10Z. At this time, the fastening tape 20 is, for example, cross-fastened (see FIG. 2). "Cross fastening" means that the first tape 20a is fixed to the target sheet 16 with the free end 23 pulled upward, and the target sheet 16 is fixed with the free end 23 of the second tape 20b pulled downward. 16, and the first tape 20a and the second tape 20b intersect on the target sheet 16 in a substantially X-shape. In addition, when the caregiver locks the fastening tape 20 to the target sheet 16, the size of the diaper main body 10 can be matched to the physique of the wearer P by adjusting the locking method.
　このように、実施例１のテープ式使い捨てオムツ１では、ファスニングテープ２０の基材シート２１が、固定端２２で折り返され、前後方向Ｄに隣り合う係止部２４の間に設定された接合領域２５が接合構造２６を介してオムツ本体１０に接合されている。また、接合領域２５の前後方向Ｄの両側には、接合領域２５に沿って基材シート２１を破断可能な一対の破断部２７が形成されている。 In this way, in the tape-type disposable diaper 1 of Example 1, the base sheet 21 of the fastening tape 20 is folded back at the fixed end 22, and the joining area is set between the locking parts 24 adjacent to each other in the front-rear direction D. 25 is joined to the diaper main body 10 via a joining structure 26. Further, a pair of breaking portions 27 that can break the base sheet 21 along the bonding region 25 are formed on both sides of the bonding region 25 in the front-rear direction D.
　このため、ファスニングテープ２０は展開されると、基材シート２１が破断部２７で破断され、係止部２４の間に設定された接合領域２５を挟んで、前後方向Ｄに第１テープ２０ａと第２テープ２０ｂの二つに分割される。またこのとき、接合領域２５は、接合構造２６によってオムツ本体１０に接合したままとなる。これにより、第１テープ２０ａと第２テープ２０ｂの間には、接合領域２５の分だけ前後方向Ｄに隙間Ｓが生じる。この結果、実施例１のテープ式使い捨てオムツ１は、前後方向Ｄに隣り合う係止部２４の間の位置で分割された基材シート２１（第１テープ２０ａと第２テープ２０ｂ）の間に隙間Ｓを生じさせることができる。 Therefore, when the fastening tape 20 is unfolded, the base sheet 21 is torn at the breaking part 27, and the first tape 20a is joined in the front-back direction D with the joining area 25 set between the locking parts 24 in between. The second tape 20b is divided into two parts. Further, at this time, the bonding region 25 remains bonded to the diaper main body 10 by the bonding structure 26. As a result, a gap S is created between the first tape 20a and the second tape 20b in the front-rear direction D by the amount of the joining area 25. As a result, the tape-type disposable diaper 1 of Example 1 is arranged between the base sheet 21 (the first tape 20a and the second tape 20b) divided at the position between the locking parts 24 adjacent to each other in the front-rear direction D. A gap S can be created.
　そして、分割された基材シート２１（第１テープ２０ａと第２テープ２０ｂ）の間に隙間Ｓが生じることで、ファスニングテープ２０をクロス止めする際、第１テープ２０ａの基部（固定端２２）と第２テープ２０ｂの基部（固定端２２）とが干渉しにくくなる。これにより、介助者は容易にクロス止めを行うことができ、着用者Ｐの脚まわりに生じる隙間を適切に抑制することができる。 A gap S is created between the divided base sheet 21 (the first tape 20a and the second tape 20b), so that when the fastening tape 20 is cross-fastened, the base (fixed end 22) of the first tape 20a and the base (fixed end 22) of the second tape 20b are less likely to interfere with each other. Thereby, the helper can easily perform the cross fixing, and the gap that occurs around the legs of the wearer P can be appropriately suppressed.
　また、介助者は、係止部２４を把持してファスニングテープ２０を展開すると同時に、破断部２７から基材シート２１を破断することができる。そのため、実施例１のテープ式使い捨てオムツ１は、例えば仮止め用の接着剤等でオムツ本体１０に接着されたファスニングテープ２０を剥離、展開した後、基材シートに設けられたミシン目から破断するテープ式のオムツと比べて、介助者の手間を軽減することが可能となる。 Further, the caregiver can tear the base sheet 21 from the tearing portion 27 at the same time as gripping the locking portion 24 and unfolding the fastening tape 20. Therefore, in the tape-type disposable diaper 1 of Example 1, after the fastening tape 20 adhered to the diaper body 10 with a temporary adhesive or the like is peeled off and expanded, the tape-type disposable diaper 1 breaks from the perforation provided in the base sheet. Compared to tape-type diapers, it is possible to reduce the burden on caregivers.
　また、実施例１のテープ式使い捨てオムツ１では、第１テープ２０ａ及び第２テープ２０ｂを展開した状態であっても、接合領域２５はオムツ本体１０に接合したままとなる。このため、分割された基材シート２１（第１テープ２０ａと第２テープ２０ｂ）の間に残された接合領域２５（基材シート片）は全域がオムツ本体１０に固定され、係止部２４を係止するときの邪魔になることはない。 Furthermore, in the tape-type disposable diaper 1 of Example 1, the joining region 25 remains joined to the diaper main body 10 even when the first tape 20a and the second tape 20b are unfolded. Therefore, the entire joint area 25 (base sheet piece) left between the divided base sheet 21 (first tape 20a and second tape 20b) is fixed to the diaper main body 10, and the locking portion 24 It won't get in the way when you lock it.
　そして、実施例１のテープ式使い捨てオムツ１では、ファスニングテープ２０を使用時に二つに分割するため、一枚の基材シート２１によって第１テープ２０ａと第２テープ２０ｂを形成することができる。これにより、実施例１のテープ式使い捨てオムツ１は、オムツ本体１０を製造する際の操業性の悪化を抑制することができる。 In the tape-type disposable diaper 1 of Example 1, since the fastening tape 20 is divided into two at the time of use, the first tape 20a and the second tape 20b can be formed from one base sheet 21. Thereby, the tape-type disposable diaper 1 of Example 1 can suppress deterioration of operability when manufacturing the diaper main body 10.
　さらに、実施例１のテープ式使い捨てオムツ１では、オムツ本体１０側に折り返された基材シート２１が、接合構造２６によってオムツ本体１０に接合されている。そのため、実施例１のテープ式使い捨てオムツ１は、折り返されたファスニングテープ２０を仮止めするための接着剤を不要とすることができる。 Further, in the tape-type disposable diaper 1 of Example 1, the base sheet 21 folded back toward the diaper main body 10 side is joined to the diaper main body 10 by the joining structure 26. Therefore, the tape-type disposable diaper 1 of Example 1 can eliminate the need for an adhesive for temporarily fixing the folded fastening tape 20.
　以上、本発明のテープ式使い捨てオムツを実施例１に基づいて説明してきたが、具体的な構成については、実施例１に限られるものではなく、各請求項に係る発明の要旨を逸脱しない限り、設計の変更や追加等は許容される。 Although the tape-type disposable diaper of the present invention has been described above based on Example 1, the specific configuration is not limited to Example 1, and as long as it does not depart from the gist of the invention according to each claim. , changes and additions to the design are permitted.
　実施例１のテープ式使い捨てオムツ１では、接合構造２６が、接合領域２５のほぼ全面を一様にオムツ本体１０に接合する例が示された。しかしながら、図６に示された第１変形例のファスニングテープ２０Ａのように、接合構造２６Ａが、接合領域２５Ａの延在方向（幅方向Ｅ）に沿って間欠的に並ぶ複数の接合部２８によって構成されてもよい。 In the tape-type disposable diaper 1 of Example 1, an example was shown in which the joining structure 26 uniformly joins almost the entire surface of the joining region 25 to the diaper main body 10. However, like the fastening tape 20A of the first modification shown in FIG. may be configured.
　ここで、接合部２８は、基材シート２１や接着剤等が接合によりオムツ本体１０と一体化した部分である。つまり、実施例１のテープ式使い捨てオムツ１では、接合領域２５の全面が接合部になっている。そして、接合部２８は、基材シート２１の一般部よりも硬くなる。 Here, the bonding portion 28 is a portion where the base sheet 21, adhesive, etc. are integrated with the diaper body 10 by bonding. That is, in the tape-type disposable diaper 1 of Example 1, the entire surface of the joining area 25 is a joining part. The joint portion 28 is harder than the general portion of the base sheet 21.
　これに対し、第１変形例のファスニングテープ２０Ａでは、接合領域２５の全面が接合構造２６によって一様に接合された実施例１のファスニングテープ２０と比べて、接合部２８の面積が小さくなり、接合領域２５Ａを柔らかくすることができる。これにより、第１変形例のファスニングテープ２０Ａは、接合領域２５Ａの肌あたりをソフトにできる。 On the other hand, in the fastening tape 20A of the first modification, the area of the joint portion 28 is smaller compared to the fastening tape 20 of the first embodiment in which the entire surface of the joint region 25 is uniformly joined by the joint structure 26, The bonding region 25A can be made soft. Thereby, the fastening tape 20A of the first modification can make the bonding region 25A soft against the skin.
　なお、図６に示された例では、同じ大きさの複数の接合部２８が一定の間隔をあけて並んでいる。しかしながら、各接合部２８の大きさは任意に設定可能であり、異なる大きさの接合部２８が並んでもよい。また、接合部２８の間隔は、不等間隔であってもよい。 In the example shown in FIG. 6, a plurality of joint portions 28 of the same size are lined up at regular intervals. However, the size of each joint 28 can be set arbitrarily, and joints 28 of different sizes may be lined up. Furthermore, the intervals between the joint portions 28 may be unequal.
　また、実施例１のテープ式使い捨てオムツ１では、接合領域２５の前後方向Ｄの幅が、自由端２３から固定端２２まで一定である例が示された。しかしながら、図７に示された第２変形例のファスニングテープ２０Ｂや、図８に示された第３変形例のファスニングテープ２０Ｃのように、接合領域２５Ｂの前後方向Ｄの幅αが、基材シート２１の自由端２３から固定端２２に向かうにつれて次第に大きくなってもよい。なお、第２変形例のファスニングテープ２０Ｂでは、接合構造２６Ｂは、接合領域２５Ｂの前後方向Ｄの両端部のみをオムツ本体１０に接合する（図７参照）。また、第３変形例のファスニングテープ２０Ｃでは、接合構造２６Ｂは、接合領域２５Ｂの全面を一様にオムツ本体１０に接合する（図８参照）。 Further, in the tape-type disposable diaper 1 of Example 1, an example was shown in which the width of the joining region 25 in the front-rear direction D is constant from the free end 23 to the fixed end 22. However, as in the fastening tape 20B of the second modification shown in FIG. 7 and the fastening tape 20C of the third modification shown in FIG. The size may gradually increase from the free end 23 of the sheet 21 toward the fixed end 22. In addition, in the fastening tape 20B of the second modification, the joining structure 26B joins only both ends of the joining region 25B in the front-rear direction D to the diaper main body 10 (see FIG. 7). Moreover, in the fastening tape 20C of the third modification, the joining structure 26B uniformly joins the entire surface of the joining region 25B to the diaper main body 10 (see FIG. 8).
　第２変形例のファスニングテープ２０Ｂ及び第３変形例のファスニングテープ２０Ｃは、基材シート２１が前後方向Ｄに二分割された際、分割された基材シート２１（第１テープ２０ａと第２テープ２０ｂ）の間に生じた隙間Ｓの前後方向Ｄの幅を、基部（固定端２２）に向かって広げることができる。これにより、第２変形例のファスニングテープ２０Ｂ及び第３変形例のファスニングテープ２０Ｃは、第１テープ２０ａの基部（固定端２２）と第２テープ２０ｂの基部（固定端２２）とを、実施例１よりもさらに干渉しにくくできる。 The fastening tape 20B of the second modification and the fastening tape 20C of the third modification are such that when the base sheet 21 is divided into two in the front-rear direction D, the divided base sheet 21 (the first tape 20a and the second tape 20b) can be widened in the front-rear direction D toward the base (fixed end 22). As a result, the fastening tape 20B of the second modification and the fastening tape 20C of the third modification have the base part (fixed end 22) of the first tape 20a and the base part (fixed end 22) of the second tape 20b in the embodiment. It can be made even more difficult to interfere with than 1.
　さらに、第２変形例のファスニングテープ２０Ｂは、第３変形例のファスニングテープ２０Ｃと比べて、接合構造２６Ｂが設けられた面積が小さい。そのため、第２変形例のファスニングテープ２０Ｂの方が、第３変形例のファスニングテープ２０Ｃよりも、接合領域２５Ｂを柔らかくすることができる。 Furthermore, the fastening tape 20B of the second modification has a smaller area in which the joining structure 26B is provided than the fastening tape 20C of the third modification. Therefore, the fastening tape 20B of the second modification can make the joining region 25B softer than the fastening tape 20C of the third modification.
　また、第２変形例のファスニングテープ２０Ｂでは、接合構造２６Ｂは、接合領域２５Ｂの前後方向Ｄの両端部が接合構造２６Ｂによって直線状に接合されている。そして、第３変形例のファスニングテープ２０Ｃでは、接合領域２５Ｂの全面が接合構造２６Ｂによって一様に接合されている。しかしながら、第２変形例のファスニングテープ２０Ｂと第３変形例のファスニングテープ２０Ｃのいずれであっても、接合構造２６Ｂは、接合領域２５Ｂの延在方向（幅方向Ｅ）に沿って間欠的に並ぶ複数の接合部によって構成されてもよい。 Furthermore, in the fastening tape 20B of the second modification, both ends of the joining region 25B in the front-rear direction D are linearly joined by the joining structure 26B. In the fastening tape 20C of the third modification, the entire surface of the joining region 25B is uniformly joined by the joining structure 26B. However, in both the fastening tape 20B of the second modification and the fastening tape 20C of the third modification, the joining structures 26B are arranged intermittently along the extending direction (width direction E) of the joining region 25B. It may be composed of a plurality of joints.
　また、実施例１のテープ式使い捨てオムツ１では、破断部２７を構成する複数の貫通孔２７ａが、幅方向Ｅに沿って所定の長さを有する線状の切り込みに設定された例が示された。ここで、実施例１では、各貫通孔２７ａの延在方向が、接合領域２５の延在方向（幅方向Ｅ）と平行に設定されている。しかしながら、破断部２７を構成する貫通孔２７ａの間のアンカット部分が破断される際に、基材シート２１が前後方向Ｄに破断（いわゆる横裂け）しなければよく、各貫通孔２７ａの延在方向は任意に設定可能である。 Further, in the tape-type disposable diaper 1 of Example 1, an example is shown in which the plurality of through holes 27a constituting the breaking portion 27 are set as linear cuts having a predetermined length along the width direction E. Ta. Here, in Example 1, the extending direction of each through hole 27a is set parallel to the extending direction (width direction E) of the bonding region 25. However, when the uncut portion between the through holes 27a constituting the breaking portion 27 is broken, it is sufficient that the base sheet 21 does not break in the front-rear direction D (so-called horizontal tearing), and the extension of each through hole 27a The current direction can be set arbitrarily.
　すなわち、図９に示された第４変形例のファスニングテープ２０Ｄのように、接合領域２５Ｄの延在方向（幅方向Ｅ）に沿って間欠的に並ぶ複数の細長い貫通孔２９ａによって破断部２７が構成された際、各貫通孔２９ａは、第１端部３０ａから接合領域２５Ｄまでの前後方向Ｄに沿った長さＬ１よりも、第２端部３０ｂから接合領域２５Ｄまでの前後方向Ｄに沿った長さＬ２の方が短くなるように設定されてもよい。なお、「第１端部３０ａ」とは、各貫通孔２９ａの長手方向の両端部のうち、自由端２３に近い一方の端部である。また、「第２端部３０ｂ」とは、各貫通孔２９ａの長手方向の両端部のうち、固定端２２に近い他方の端部である。 That is, like the fastening tape 20D of the fourth modification shown in FIG. When configured, each through hole 29a has a length L1 along the front-rear direction D from the second end 30b to the joint region 25D than a length L1 along the front-rear direction D from the first end 30a to the joint region 25D. The length L2 may be set to be shorter. Note that the "first end 30a" is one of the longitudinal ends of each through hole 29a that is closer to the free end 23. Moreover, the "second end 30b" is the other end closer to the fixed end 22 of both ends in the longitudinal direction of each through hole 29a.
　この場合には、ファスニングテープ２０Ｄが展開される際、基材シート２１の破断方向を複数の貫通孔２９ａによって接合領域２５Ｄ側に向かうように誘導することができる。このため、第４変形例のファスニングテープ２０Ｄは、基材シート２１が前後方向Ｄに破断することを防止できる。 In this case, when the fastening tape 20D is unfolded, the direction of fracture of the base sheet 21 can be guided toward the joining region 25D side by the plurality of through holes 29a. Therefore, the fastening tape 20D of the fourth modification can prevent the base sheet 21 from breaking in the front-rear direction D.
　また、実施例１のテープ式使い捨てオムツ１では、基材シート２１が二つの係止部２４の間に設定された接合領域２５だけがオムツ本体１０に接合された例が示された。しかしながら、図１０に示された第５変形例のファスニングテープ２０Ｅのように、基材シート２１Ｅの前後方向Ｄの両端部に、それぞれ自由端２３から固定端２２まで延びる第２接合領域３１が設定され、各第２接合領域３１が第２接合構造３２を介してオムツ本体１０に接合されてもよい。なお、図１０では、第２接合領域は一点鎖線で囲んで示され、第２接合構造３２は斜線を付して示されている。 Furthermore, in the tape-type disposable diaper 1 of Example 1, an example was shown in which only the joining region 25 of the base sheet 21 set between the two locking parts 24 was joined to the diaper main body 10. However, like the fastening tape 20E of the fifth modification shown in FIG. 10, second bonding regions 31 extending from the free end 23 to the fixed end 22 are set at both ends of the base sheet 21E in the front-rear direction D. Then, each second bonding region 31 may be bonded to the diaper main body 10 via the second bonding structure 32. In addition, in FIG. 10, the second bonding region is shown surrounded by a dashed line, and the second bonding structure 32 is shown with diagonal lines.
　また、第５変形例のファスニングテープ２０Ｅでは、第２接合領域３１よりも前後方向Ｄの内側の位置に、第２接合領域３１に沿って基材シート２１を破断可能な第２破断部３３が形成されている。第２破断部３３は、幅方向Ｅに沿って一定の間隔をあけて並ぶ複数の貫通孔によって構成されている。 Further, in the fastening tape 20E of the fifth modification, a second breaking portion 33 capable of breaking the base sheet 21 along the second bonding region 31 is provided at a position inside the second bonding region 31 in the front-rear direction D. It is formed. The second breaking portion 33 is constituted by a plurality of through holes lined up at regular intervals along the width direction E.
　これにより、第５変形例のファスニングテープ２０Ｅは、前後方向Ｄの両端部がオムツ本体１０に固定される。このため、第５変形例のファスニングテープ２０Ｅは、展開時に、破断部２７を構成する複数の貫通孔２７ａの間のアンカット部分に作用する力の作用方向を、接合領域２５の延在方向（幅方向Ｅ）に沿わせることができ、アンカット部分をきれいに破断させることができる。 Thereby, both ends of the fastening tape 20E of the fifth modification in the front-rear direction D are fixed to the diaper main body 10. Therefore, when the fastening tape 20E of the fifth modification is deployed, the direction of force acting on the uncut portion between the plurality of through holes 27a constituting the fracture portion 27 is changed from the direction in which the joining region 25 extends ( The uncut portion can be cut cleanly along the width direction E).
　さらに、実施例１のテープ式使い捨てオムツ１では、破断部２７が、基材シート２１を貫通する複数の貫通孔２７ａによって構成された例が示された。しかしながら、破断部２７の構成はこれに限らない。例えば、図１１に示された第６変形例のファスニングテープ２０Ｆのように、破断部３４が、接合領域２５の延在方向（幅方向Ｅ）に沿って一定の間隔で間欠的に並ぶ複数の融着部３４ａによって構成されてもよい。 Further, in the tape-type disposable diaper 1 of Example 1, an example was shown in which the breaking portion 27 was constituted by a plurality of through holes 27a penetrating the base sheet 21. However, the configuration of the breaking portion 27 is not limited to this. For example, like the fastening tape 20F of the sixth modification shown in FIG. It may also be configured by a fused portion 34a.
　なお、図１１に示された第６変形例のファスニングテープ２０Ｆでは、接合構造２６Ｆが、接合領域２５Ｆの延在方向（幅方向Ｅ）に沿って間欠的に並ぶ複数の接合部２８Ｆによって構成されている。しかしながら、破断部３４が複数の融着部３４ａによって構成された場合であっても、接合領域２５Ｆの全面が接合構造２６Ｆによって一様に接合されてもよい。 In addition, in the fastening tape 20F of the sixth modification shown in FIG. 11, the joint structure 26F is constituted by a plurality of joint parts 28F that are intermittently lined up along the extending direction (width direction E) of the joint region 25F. ing. However, even if the fracture portion 34 is constituted by a plurality of fused portions 34a, the entire surface of the bonding region 25F may be uniformly bonded by the bonding structure 26F.
　また、実施例１のテープ式使い捨てオムツ１では、ファスニングテープ２０が前後方向Ｄに並列した二つの係止部２４を有する例が示された。しかしながら、係止部２４の数は二つ以上であればよい。また、係止部２４が三つ以上設けられた場合には、ファスニングテープ２０は、前後方向Ｄに三分割以上に分割可能とする。 Further, in the tape-type disposable diaper 1 of Example 1, an example was shown in which the fastening tape 20 has two locking portions 24 arranged in parallel in the front-rear direction D. However, the number of locking portions 24 may be two or more. Moreover, when three or more locking parts 24 are provided, the fastening tape 20 can be divided into three or more parts in the front-rear direction D.
　また、実施例１のテープ式使い捨てオムツ１では、ファスニングテープ２０がオムツ本体１０の背側部１０Ｘの両側部に設けられ、腹側部１０Ｚに留められる例が示された。しかしながら、ファスニングテープ２０は、オムツ本体１０の腹側部１０Ｚの両側部に設けられ、背側部１０Ｘに留められてもよい。 Furthermore, in the tape-type disposable diaper 1 of Example 1, an example was shown in which the fastening tapes 20 were provided on both sides of the back side portion 10X of the diaper main body 10 and fastened to the ventral side portion 10Z. However, the fastening tape 20 may be provided on both sides of the ventral side portion 10Z of the diaper main body 10 and may be fastened to the back side portion 10X.
関連出願の相互参照Cross-reference of related applications
　本出願は、２０２２年７月２６日に日本国特許庁に出願された特願２０２２－１１９１１０に基づいて優先権を主張し、その全ての開示は完全に本明細書で参照により組み込まれる。 This application claims priority based on Japanese Patent Application No. 2022-119110 filed with the Japan Patent Office on July 26, 2022, the entire disclosure of which is fully incorporated herein by reference.

Claims (5)

  1. 　背側部、股部、腹側部が前後方向に順に連なって一体に形成されたオムツ本体と、
    　前記背側部及び前記腹側部の一方の両側部に設けられ、前記前後方向に分割可能であって、前記オムツ本体の使用時に前記背側部及び前記腹側部の他方に係止されるファスニングテープと、を備え、
    　前記ファスニングテープは、前記オムツ本体に固定された固定端と、前記固定端と反対側の自由端と、を有する基材シートと、前記自由端に形成されると共に前記前後方向に沿って並列した複数の係止部と、を有し、
    　前記基材シートは、前記固定端の近傍位置で折り返され、前記前後方向に隣り合う前記係止部の間に前記自由端から前記固定端まで延びる接合領域が設定され、
    　前記接合領域は、接合構造を介して前記オムツ本体に接合され、
    　前記接合領域の両側には、前記接合領域に沿って前記基材シートを破断可能な一対の破断部が形成されている
    　ことを特徴とするテープ式使い捨てオムツ。     A diaper main body formed integrally with a dorsal part, a crotch part, and a ventral part connected in order in the front-back direction;
    It is provided on both sides of one of the dorsal side part and the ventral side part, is separable in the front-rear direction, and is locked to the other of the dorsal side part and the ventral side part when the diaper main body is used. Equipped with fastening tape,
    The fastening tape includes a base sheet having a fixed end fixed to the diaper main body, a free end opposite to the fixed end, and a base sheet formed on the free end and arranged in parallel along the front-rear direction. It has a plurality of locking parts,
    The base sheet is folded back at a position near the fixed end, and a joining area extending from the free end to the fixed end is set between the locking parts adjacent in the front-rear direction,
    The bonding region is bonded to the diaper body via a bonding structure,
    A tape-type disposable diaper, characterized in that a pair of breaking parts that can break the base sheet along the joining area are formed on both sides of the joining area.
  2. 　請求項１に記載されたテープ式使い捨てオムツにおいて、
    　前記接合構造は、前記接合領域の延在方向に沿って間欠的に並ぶ複数の接合部によって構成されている
    　ことを特徴とするテープ式使い捨てオムツ。     The tape-type disposable diaper according to claim 1,
    The tape-type disposable diaper, wherein the joint structure is constituted by a plurality of joint parts that are intermittently lined up along the extending direction of the joint area.
  3. 　請求項１又は請求項２に記載されたテープ式使い捨てオムツにおいて、
    　前記接合領域は、前記前後方向の幅が、前記基材シートの前記自由端から前記固定端に向かうにつれて次第に大きくなる
    　ことを特徴とするテープ式使い捨てオムツ。     In the tape-type disposable diaper according to claim 1 or claim 2,
    The tape-type disposable diaper, wherein the width of the joining area in the front-rear direction gradually increases from the free end to the fixed end of the base sheet.
  4. 　請求項１又は請求項２に記載されたテープ式使い捨てオムツにおいて、
    　前記破断部は、前記接合領域の延在方向に沿って間欠的に並ぶと共に、前記基材シートを貫通する複数の細長い貫通孔によって構成され、
    　前記自由端に近い前記貫通孔の長手方向の一方の端部を第１端部とし、前記固定端に近い前記貫通孔の長手方向の他方の端部を第２端部とするとき、
    　前記貫通孔は、前記第１端部から前記接合領域までの前記前後方向に沿った長さよりも、前記第２端部から前記接合領域までの前記前後方向に沿った長さの方が短くなるように形成されている
    　ことを特徴とするテープ式使い捨てオムツ。     In the tape-type disposable diaper according to claim 1 or claim 2,
    The fracture portion is constituted by a plurality of elongated through holes that are arranged intermittently along the extending direction of the bonding region and that penetrate the base sheet,
    When one longitudinal end of the through hole near the free end is a first end, and the other longitudinal end of the through hole near the fixed end is a second end;
    The length of the through hole from the second end to the joining region along the front-back direction is shorter than the length along the front-back direction from the first end to the joining region. A tape-type disposable diaper characterized by being formed as follows.
  5. 　請求項１又は請求項２に記載されたテープ式使い捨てオムツにおいて、
    　前記基材シートは、前記前後方向の両端部に前記自由端から前記固定端まで延びる第２接合領域が設定され、前記第２接合領域が第２接合構造を介して前記オムツ本体に接合され、
    　前記第２接合領域よりも前記前後方向の内側の位置には、前記第２接合領域に沿って前記基材シートを破断可能な第２破断部が形成されている
    　ことを特徴とするテープ式使い捨てオムツ。     In the tape-type disposable diaper according to claim 1 or claim 2,
    The base sheet is provided with a second bonding area extending from the free end to the fixed end at both ends in the front-rear direction, and the second bonding area is bonded to the diaper body via a second bonding structure,
    A tape-type disposable device, characterized in that a second breaking portion capable of breaking the base sheet along the second bonding region is formed at a position inside the second bonding region in the front-rear direction. Diaper.
PCT/JP2023/013976 2022-07-26 2023-04-04 Tape-type disposable diaper WO2024024176A1 (en)

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JP2014028064A (en) * 2012-07-31 2014-02-13 Daio Paper Corp Disposable diaper
JP2020048816A (en) * 2018-09-26 2020-04-02 大王製紙株式会社 Connected disposable wearing article
JP2020141869A (en) * 2019-03-06 2020-09-10 大王製紙株式会社 Connection type disposable wearing article

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