WO2012117824A1 - Disposable diaper - Google Patents

Disposable diaper Download PDF

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Publication number
WO2012117824A1
WO2012117824A1 PCT/JP2012/052891 JP2012052891W WO2012117824A1 WO 2012117824 A1 WO2012117824 A1 WO 2012117824A1 JP 2012052891 W JP2012052891 W JP 2012052891W WO 2012117824 A1 WO2012117824 A1 WO 2012117824A1
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WO
WIPO (PCT)
Prior art keywords
urination
bag body
concealed
bag
liquid
Prior art date
Application number
PCT/JP2012/052891
Other languages
French (fr)
Japanese (ja)
Inventor
美貴子 川井
Original Assignee
大王製紙株式会社
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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
Publication of WO2012117824A1 publication Critical patent/WO2012117824A1/en

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    • 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
    • A61F13/42—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators with wetness indicator or alarm
    • 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
    • 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
    • A61F13/53—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 absorbing medium

Definitions

  • the present invention relates to a disposable diaper having a function of notifying whether urine or the like is excreted.
  • Such a concealment type urination display has a concealment means that improves transparency by urination on the outer surface side of the urine display part, and as the concealment means, a plurality of sheets that adhere closely when wet with urine and increase the transparency.
  • a water-soluble ink layer that dissolves by urine is known.
  • the concealment type urination display has few restrictions on the color, shape, and material of the urination display portion, and can be formed by, for example, printing a design such as a character on an appropriate sheet.
  • the conventional concealment type urination display the urination display part that appears after urination is easy to see through to some extent even before urination, even if the visibility of the urination display part increases after urination, it is not surprising, Difficult to attract infants.
  • a main problem of the present invention is to provide a disposable diaper that has a clearer appearance change before and after urination and is easy to attract children's interest.
  • a disposable diaper comprising a liquid-permeable surface sheet, a liquid-impermeable sheet, and an absorbent body interposed therebetween, Provided in a liquid-permeable bag body, a superabsorbent polymer sealed in the bag body, a concealing cylinder body that wraps the bag body, and a portion of the outer surface of the bag body that is covered and concealed by the concealing cylinder body Provided with the urination display portion provided on the top sheet side of the liquid-impermeable sheet, When there is urination and urine is absorbed by the superabsorbent polymer in the bag body, the bag body expands as the superabsorbent polymer expands, and the concealed cylindrical body tears open without resisting the expansion. Then, the urination display part is exposed from the cleaved portion, and the exposed urination display part is configured to be visible from the outside.
  • a disposable diaper characterized by that.
  • the urination display part is concealed by the concealment cylinder before urination, and the urination display part is exposed by the tearing of the concealment cylinder after urination, so the appearance is clearer than before before and after urination It can create change and make it easier for children to get interested.
  • the concealed cylindrical body is divided at the time of dehiscence, and the portion of the concealed cylindrical body that is opposed to the urination display section changes the relative position with respect to the bag body so that the urination display section of the bag body is changed.
  • the disposable diaper of Claim 3 which comes to oppose the surface which does not have.
  • the concealed portion of at least the concealed cylindrical body in the bag body is folded inward of the bag body, and the urination display section is provided in the folded portion. Disposable diapers.
  • the urine display part is further concealed by folding the bag body inside the concealing cylinder, so that a material with high concealment is used as the material of the concealing cylinder. Even if not used, high concealment can be ensured as a whole.
  • the concealing cylinder is bonded to a surface of the bag that does not have the urination display portion, and is not bonded to the bag except for the bonded portion. Disposable diapers.
  • the entire concealed cylinder may not be fixed to the bag, but in that case, the concealed cylinder may be displaced and the urination display part may not appear. It is preferable to join only to it.
  • the bag body and the concealing cylinder are interposed between the top sheet and the absorber, and the urination display part is provided on the surface of the bag body on the top sheet side, or the bag body and A concealing cylinder is interposed between the absorber and the liquid-impermeable sheet, and the urination display part is provided on the surface of the bag body on the liquid-impermeable sheet side,
  • the disposable diaper according to any one of claims 1 to 5.
  • the bag and the concealed cylinder of the present invention can be applied to almost all disposable diapers.
  • a disposable diaper that has a distinct appearance change before and after urination, and that is easily attracted by infants.
  • FIG. 2 is a cross-sectional view taken along the line AA in FIG.
  • FIG. 3 is a cross-sectional view taken along the line BB in FIG.
  • FIG. 2 is a cross-sectional view taken along the line CC of FIG.
  • FIG. 1 to 7 show a pad type disposable diaper 200.
  • This pad-type disposable diaper 200 has a ventral (front) portion F1 extending forward and a back (rear) portion B1 extending rearward with respect to the center in the front-rear direction.
  • the dimensions of each part can be determined as appropriate.
  • the total length (length in the front-rear direction) L1 can be about 150 to 450 mm, and the total width W1 can be about 120 to 200 mm.
  • Symbol L2 indicates the length of the absorber in the front-rear direction, and symbol W2 indicates the width of the absorber.
  • the pad-type disposable diaper 200 has a basic structure in which an absorber 23 is interposed between the inner surface of the liquid-impermeable sheet 21 and the liquid-permeable top sheet 22.
  • the absorbent body 23 it is possible to use a laminate of pulp fibers, an aggregate of filaments such as cellulose acetate, or a nonwoven fabric, and a mixture obtained by mixing and fixing a superabsorbent polymer as necessary.
  • the absorbent body 23 can be wrapped with a wrapping sheet 28 made of crepe paper, nonwoven fabric or the like as shown in FIG.
  • the shape of the absorber 23 can be set to an appropriate shape such as a strip shape in which the front portion is relatively wider than the rear portion, a rectangular shape, or a trapezoidal shape.
  • the fiber basis weight and the basis weight of the superabsorbent polymer in the absorbent body 23 can be appropriately determined, but the fiber basis weight is preferably about 100 to 600 g / m 2, and the basis weight of the superabsorbent polymer is 100 to 400 g / m 2. It is preferably about 2 .
  • a liquid-impermeable sheet 21 is provided on the back side of the absorber 23 so as to protrude from the periphery of the absorber 23 by a predetermined length.
  • a sheet having moisture permeability can be used in addition to a polyethylene film or the like without impairing the water barrier from the viewpoint of preventing stuffiness.
  • This water-impervious / breathable sheet is a microporous sheet obtained by, for example, melt-kneading an inorganic filler in an olefin resin such as polyethylene or polypropylene to form a sheet, and then stretching in a uniaxial or biaxial direction. Can be used.
  • the outer surface (back surface) of the liquid-impermeable sheet 21 is covered with an exterior sheet 25.
  • Various nonwoven fabrics are used as the exterior sheet 25.
  • the hook tape 32 can be fixed to the exterior sheet 25 when the hook tape 32 is not used, as will be described later.
  • natural fibers such as regenerated fibers, such as rayon, a cupra, etc.
  • natural fibers other than synthetic fibers such as olefin type, polyester, and amide type, such as polyethylene or a polypropylene
  • the front side of the absorber 23 is covered with a liquid-permeable top sheet 22.
  • the absorber 23 partially protrudes from the side edge of the top sheet 22, but the width of the top sheet 22 can be widened so that the side edge of the absorber 3 does not protrude.
  • a perforated or non-porous nonwoven fabric or a perforated plastic sheet is used as the top sheet 22 .
  • synthetic fibers such as polyethylene or polypropylene such as olefin, polyester, and amide, recycled fibers such as rayon and cupra, and natural fibers such as cotton can be used.
  • the outer sheet 12 and the liquid-permeable top sheet 1 are attached to the front and rear ends of the absorbent body 3 so as to extend to the front and rear sides, respectively, and the end flap without the absorbent body 23 is present.
  • Part EF is formed.
  • the liquid-impermeable sheet 21 is extended outward from the side edge of the absorber 23, and the inner surface of the portion from the extended part to the side part of the top sheet 22 is provided on the inner side.
  • a portion 24x on the outer side in the width direction of the gather sheet 24 is attached over the entire front-rear direction, and constitutes a side flap portion SF where the absorber 23 does not exist.
  • the bonded portion of the material can be formed by a hot melt adhesive, heat seal, or ultrasonic seal, and is shown in a hatched pattern in the drawing.
  • the absorber intervening portions other than the end flap portion EF and the side flap portion SF constitute a main body portion BD that holds excrement.
  • a plastic sheet or a melt-blown nonwoven fabric can be used as a material for the gather sheet 24.
  • a nonwoven fabric that is water-repellent treated with silicon or the like is preferably used.
  • a portion 24c on the center side in the width direction of the gather sheet 24 extends to the top sheet 22, and an elongated elastic member 24G is stretched along the front-rear direction at the end portion on the center side in the width direction. It is fixed with a melt adhesive or the like.
  • the elongated elastic member 24G styrene rubber, olefin rubber, urethane rubber, ester rubber, polyurethane, polyethylene, polystyrene, styrene butadiene, silicon, polyester, etc., which are formed in a thread shape, a string shape, a belt shape, or the like. Ordinarily used materials can be used.
  • Both the gather sheets 24, 24 are fixed by being bonded to the inner surface of the article (in the illustrated form, the surface of the top sheet 22 and the inner surface of the exterior sheet 32) across the entire front and rear direction.
  • 24c is bonded and fixed to the inner surface of the article (the surface of the top sheet 22 in the illustrated embodiment) at both ends in the front-rear direction, and is fixed to the inner surface of the article (the surface of the top sheet 22 in the illustrated embodiment) between both ends in the front-rear direction.
  • the non-fixed portion is a portion that becomes a three-dimensional gather that can stand up with respect to the inner surface of the article (the surface of the top sheet 22 in the illustrated embodiment), and the standing base end 24 b has a width in the gather sheet 24. It is located at the boundary between the fixed portion 24x on the outer side in the direction and the inner portion 24c.
  • a slip stopper 30 made of an adhesive layer is provided on the back surface of the pad type disposable diaper 200.
  • this misalignment stopper 30 it is also possible to use a hook tape of a mechanical fastener (a male material of a hook-and-loop fastener) having a large number of hook-shaped protrusions.
  • the hook-shaped projections include mushrooms, hooks, les, Js, Ts, double Js (Js that are joined back to back), etc. However, any shape is acceptable.
  • the hook tape can be attached with a hot melt adhesive or the like.
  • it is desirable that the slip stopper 30 is releasably coated with a release sheet 31 and the release stopper 31 is exposed by peeling the release sheet 31 during use.
  • the misalignment stopper 30 is provided so as to be continuous over both the abdominal part F1 and the dorsal part B1, but may be provided separately for each of the abdominal part F1 and the dorsal part B1.
  • the number can be provided only in the number, and the number can be plural or singular. In the case where a plurality of misalignment stop portions 30 are provided, it is preferable to provide at least one each on the ventral portion F1 and the back portion B1.
  • the displacement stopper 30 is preferably sized and arranged so that the entirety thereof is within the range of the main body BD.
  • the width W3 of the misalignment stopper 30 is about 70 to 80% of the width W2 of the absorber 23, and the length L3 in the front-rear direction (the total length in the case of providing a plurality in the front-rear direction) is the total length L2 of the absorber 23. It is preferably about 30 to 40%.
  • FIG. 4 (Urine display) Characteristically, as shown in FIG. 4, FIG. 5, FIG. 8, FIG. 9, and FIG. 11, a bag body 40 having liquid permeability between the topsheet 22 and the absorbent body 23, and the bag body 40.
  • a urination display section 42 is provided.
  • the urination display unit 42 may add a design such as a character, a character, or the like directly to the material of the bag body 40 by printing, or may indirectly add a printed sheet to the outer surface of the bag body 40. .
  • the width direction intermediate portion of the portion of the bag body 40 on the surface sheet 22 side is folded inward of the bag body 40 by a fold along the front-rear direction.
  • the urine display part 42 is further concealed by folding the bag body 40 inside the concealment cylinder 50, so that high concealability is provided as the material of the concealment cylinder 50. High concealment can be ensured as a whole even without using one.
  • the folded form of the illustrated example is a form in which the cross section is Z-shaped, but it can also be ⁇ -shaped, inverted ⁇ -shaped or the like, and a plurality of folds are provided in the width direction. May be hidden.
  • a form in which the urine display portion 42 is provided on the surface of the bag body 40 without being folded can also be adopted.
  • the structure is simplified and the manufacturing is easy, which is preferable.
  • the size of the bag body 40 can be determined as appropriate, but the width is preferably about 30 to 60% of the width W2 of the absorber 23, and the length in the front-rear direction is 10 times the length L2 in the front-rear direction of the absorber 23. It is preferably about 30%. Further, the position of the bag body 40 is arranged such that at least a part of the bag body 40 is included in the range of the crotch part, particularly in the range of 30 to 70% when the front end of the article is 0% and the rear end is 100%. It is desirable to do. Further, in the illustrated example, only one bag body 40 and concealing cylinder body 50 are provided on the front side of the crotch portion, but a plurality of bag bodies 40 and concealing cylinder bodies 50 may be provided at intervals in the front-rear direction.
  • the material of the bag body 40 and the concealing cylinder body 50 may be a sheet that has liquid permeability and that can be sealed (does not come out) with the superabsorbent polymer 41 particles.
  • Sheet, tissue paper, especially crepe paper can be used.
  • hydrophilic ones including those provided with a hydrophilic agent
  • nonwoven fabrics laminated nonwoven fabrics having a meltblown nonwoven fabric layer between spunbonded nonwoven fabric layers (for example, SMS nonwoven fabric, SMMS nonwoven fabric, etc.) are particularly suitable, and polypropylene, polyethylene / polypropylene composites, etc. can be used as the material.
  • the basis weight is preferably 5 to 40 g / m 2 , particularly 10 to 30 g / m 2 .
  • the superabsorbent polymer 41 (SAP) sealed in the bag body 40 can be the same as that used for the absorbent body 23, and is particularly limited to a granular form or a fibrous form. Although not a thing, a thing with a water absorption of 40 g / g or more is suitable.
  • the superabsorbent polymer 41 particles include starch-based, cellulose-based and synthetic polymer-based particles such as starch-acrylic acid (salt) graft copolymer, saponified starch-acrylonitrile copolymer, sodium carboxymethyl cellulose A cross-linked product or an acrylic acid (salt) polymer can be used.
  • the particle diameter of the superabsorbent polymer 41 particles is preferably 1000 ⁇ m or less, particularly 150 to 400 ⁇ m. Further, as the superabsorbent polymer 41 particles, those having a water absorption rate of 40 seconds or less are suitable.
  • the amount of the superabsorbent polymer 41 (SAP) sealed in the bag body 40 can be determined as appropriate.
  • the apparent volume is preferably 100 to 500%.
  • the amount of the superabsorbent polymer 41 enclosed therein is preferably 1000 g / m 2 or more, particularly about 1500 to 2000 g / m 2. .
  • an absorbent material other than the superabsorbent polymer 41 particles for example, hydrophilic short fibers such as pulp fibers, can be mixed in the bag body 40 as necessary.
  • an initial display unit 51 different from the urination display unit 42 is provided on the outer surface of a portion overlapping the urination display unit 42 (or the vicinity thereof).
  • the initial display unit 51 is configured to be visible from the outside through the surface sheet 22 before urination.
  • the initial display unit 51 may add a design such as a character, a character, or the like directly to the material of the bag body 40 by printing, or may indirectly add a printed sheet to the outer surface of the bag body 40. .
  • the initial display unit 51 overlaps the urination display unit 42 in plan view, if the shade of the initial display unit 51 is darker than the urination display unit 42, the initial display unit 51 has an effect of concealing the urination display unit 42. Since it is obtained, it is preferable. Further, when the initial display unit 51 overlaps the urination display unit 42 in plan view, if the urination display unit 42 is provided only inside the peripheral edge of the initial display unit 51, the initial display unit 51 is similarly provided. Is preferable because an effect of concealing the urination display part 42 is obtained.
  • a perforation 52 extending from the front edge to the rear edge is provided at a portion (or the vicinity thereof) overlapping the urination display portion 42 of the concealed cylinder 50.
  • the perforation 52 may be provided not only along the front-rear direction but also along an oblique direction as long as the connection in the circumferential direction of the concealed cylindrical body 50 can be divided.
  • the initial display portion 51 provided in the concealed cylinder 50 can be visually recognized from the outside. It has become.
  • the bag 40 absorbs urine and expands, the bag 40
  • the concealed cylindrical body 50 is cleaved without resisting the expansion, and the urination display portion 42 is exposed from the cleaved portion (particularly, in the form shown in FIG. The exposed urination display part 42 becomes visible from the outside as shown in FIG.
  • the urination display part 42 is concealed by the concealment cylinder 50 before urination, and the urination display part 42 is exposed by the tearing of the concealment cylinder 50 after urination, so that it is clearer than before before and after urination. It can make a change in appearance and easily attract the interest of infants.
  • the initial display unit 51 is provided in the concealed cylinder 50, not only the appearance change from nothing to existence but also a wide variety of appearance changes can be generated.
  • the initial display unit 51 is a symbol of a smiling character, and the urination portion is a symbol of a crying face character. In this case, if the diaper urinates, the character will cry, so urination in the toilet can be promoted.
  • the perforation 52 for tearing is provided, so that the concealed cylindrical body 50 using the expansion force of the superabsorbent polymer 41 is more reliably split at a desired position. Become so.
  • the bag body 40 expands greatly as shown in FIG. 9, and the portion of the concealed cylinder 50 that faces the urine display portion 42 changes due to a change in the relative position with respect to the bag body 40.
  • the urination display part 42 appears after urination when the urination display part 42 of the body 40 does not have the urination display part 42 (back side)
  • the initial display part 51 is hidden on the opposite side of the urine display part 42 of the bag body 40.
  • the initial display portion 51 remains and is not viewed alongside the urination display portion 42, which is preferable because the display can be completely changed in appearance.
  • the degree of expansion of the bag 40 and the relative movement of the initial display 51 of the concealed cylinder 50 are displayed without hiding the initial display 51 as long as the urine display 42 is exposed, as shown in FIG. It may be a degree to remain.
  • the absorbent body 23 and the liquid-impermeable sheet it is desirable to interpose between the absorbent body 23 and the liquid-impermeable sheet and to provide the urination display part 42 on the surface of the bag body 40 on the liquid-impermeable sheet side.
  • the bag body 40 even if the superabsorbent polymer 41 in the bag body 40 absorbs and swells and the permeability of the liquid in the thickness direction is reduced due to so-called gel blocking, the bag body 40 is positioned below the absorber 23. Therefore, there is also an advantage that the liquid permeability from the surface sheet 22 side to the absorber 23 is not affected.
  • the initial display unit 51 can be omitted. In this case, the urination display unit 42 appears after urination in a portion that is not displayed before urination.
  • E Although the entire concealed cylinder 50 may not be fixed to the bag body 40, in that case, the concealed cylinder 50 may be displaced and the urination display part 42 may not appear.
  • the bag body 40 and the concealed cylinder body 50 are preferably bonded to the surface of the bag body 40 that does not have the urine display portion 42 by a bonding means 60 such as a hot-melt adhesive, and is not bonded to the bag body 40 except for this bonded portion.
  • a bonding means 60 such as a hot-melt adhesive
  • the present invention can be used for various disposable diapers such as a tape type and a pants type as well as a pad type disposable diaper as in the above example.

Abstract

[Problem] To provide a disposable diaper that clearly changes appearance before and after urination and easily draws the interest of children. [Solution] The problem is solved by: providing, on the top sheet (22) side of a liquid-impermeable sheet (21), a liquid-permeable bag (40), a highly absorbent polymer (41) sealed inside the bag (40), and a concealing tube (50) that wraps around the bag (40); providing a urination-indicating part (42) on a portion of the outer surface of the bag (40) that is covered and concealed by the concealing tube (50); and being configured so that when urination occurs and urine is absorbed by the highly absorbent polymer (41) inside the bag (40), the bag (40) swells with the swelling of the highly absorbent polymer (41), the concealing tube (50) splits as a result of being unable to resist the swelling, the urination-indicating part (42) is exposed from the split region, and the exposed urination-indicating part (42) can be seen from the outside.

Description

使い捨ておむつDisposable diapers
　本発明は、尿等の排泄の有無を知らせる機能を備えた使い捨ておむつに関するものである。 The present invention relates to a disposable diaper having a function of notifying whether urine or the like is excreted.
　最近の幼児用のトイレトレーニング用使い捨ておむつには、排尿前には隠蔽（マスキング）されていた排尿表示部が、排尿により外面から視認可能なように浮き上がり、これを装着者である幼児に見せることにより、トイレに行かずにおむつに排尿してしまったことを印象付ける機能を有したものが知られている。 In recent disposable diapers for toilet training for infants, the urination display part that was concealed (masked) before urination is lifted so that it can be seen from the outside by urination, and this is shown to the infant who is the wearer By this, what has the function to impress that it has urinated in a diaper without going to a toilet is known.
　このような隠蔽タイプの排尿表示は、排尿により透明度が向上する隠蔽手段を排尿表示部の外面側に有するものであり、隠蔽手段としては、尿で濡れると密着して透明度が上がる複数枚のシートや、尿により溶解する水溶性インク層が知られている。隠蔽タイプの排尿表示は、排尿表示部の色や形状、素材の制約が少なく、例えばキャラクター等のデザインを適宜のシートに印刷することにより形成することもできる。 Such a concealment type urination display has a concealment means that improves transparency by urination on the outer surface side of the urine display part, and as the concealment means, a plurality of sheets that adhere closely when wet with urine and increase the transparency. In addition, a water-soluble ink layer that dissolves by urine is known. The concealment type urination display has few restrictions on the color, shape, and material of the urination display portion, and can be formed by, for example, printing a design such as a character on an appropriate sheet.
　他方、トイレトレーニング用以外においても、現在汎用されている使い捨ておむつの多くは、尿等の排泄の有無を呈色によって外部から視認可能とする排尿表示部を備えている（特許文献１～３参照）。この場合、排尿表示部の呈色（発色又は変色）や消色を外部から視認することにより、排泄の有無を知ることができ、おむつ交換の目安等に用いることができる。 On the other hand, many of the disposable diapers currently widely used also for toilet training are provided with a urination display section that makes it possible to visually recognize the presence or absence of excretion of urine or the like from the outside by coloring (see Patent Documents 1 to 3). ). In this case, the presence or absence of excretion can be known by visually recognizing the coloration (coloring or discoloration) and decoloring of the urination display part from the outside, and can be used as a guideline for changing diapers.
特許３５３３２８５号公報Japanese Patent No. 3533285 特開２００８－５４９９１号公報JP 2008-54991 A 特開２００８－９９９４７号公報JP 2008-99947 A
　しかし、従来の隠蔽タイプの排尿表示は、排尿後に現れる排尿表示部が排尿前においてもある程度まで透けて見え易いものであり、排尿後に排尿表示部の視認性が高まったとしても意外性に欠け、幼児の興味を引きにくい。 However, the conventional concealment type urination display, the urination display part that appears after urination is easy to see through to some extent even before urination, even if the visibility of the urination display part increases after urination, it is not surprising, Difficult to attract infants.
　そこで、本発明の主たる課題は、排尿前後においてよりはっきりとした外観変化があり、幼児の興味を引き易い使い捨ておむつを提供することにある。 Therefore, a main problem of the present invention is to provide a disposable diaper that has a clearer appearance change before and after urination and is easy to attract children's interest.
　上記課題を解決した本発明は次記のとおりである。
　＜請求項１記載の発明＞
　液透過性の表面シートと、液不透過性シートと、これらの間に介在された吸収体とを備えた、使い捨ておむつにおいて、
　液透過性を有する袋体と、前記袋体内に密封された高吸収性ポリマーと、前記袋体を包む隠蔽筒体と、袋体の外面のうち前記隠蔽筒体により被覆隠蔽された部分に設けられた排尿表示部とを、前記液不透過性シートの前記表面シート側に備えており、
　排尿があり、前記袋体内の高吸収性ポリマーに尿が吸収されると、前記高吸収性ポリマーの膨張に伴い前記袋体が膨張し、その膨張に抗しきれずに前記隠蔽筒体が裂開して、その裂開部分から前記排尿表示部が露出し、この露出した排尿表示部が外部から視認可能となるように構成した、
　ことを特徴とする使い捨ておむつ。 The present invention that has solved the above problems is as follows.
<Invention of Claim 1>
In a disposable diaper comprising a liquid-permeable surface sheet, a liquid-impermeable sheet, and an absorbent body interposed therebetween,
Provided in a liquid-permeable bag body, a superabsorbent polymer sealed in the bag body, a concealing cylinder body that wraps the bag body, and a portion of the outer surface of the bag body that is covered and concealed by the concealing cylinder body Provided with the urination display portion provided on the top sheet side of the liquid-impermeable sheet,
When there is urination and urine is absorbed by the superabsorbent polymer in the bag body, the bag body expands as the superabsorbent polymer expands, and the concealed cylindrical body tears open without resisting the expansion. Then, the urination display part is exposed from the cleaved portion, and the exposed urination display part is configured to be visible from the outside.
A disposable diaper characterized by that.
　（作用効果）
　本発明では、排尿表示部は排尿前には隠蔽筒体により隠蔽されており、排尿後に隠蔽筒体が裂開することにより排尿表示部が露出するため、排尿前後において従来よりもはっきりとした外観変化を生み出すことができ、幼児の興味を引き易いものとなる。 (Function and effect)
In the present invention, the urination display part is concealed by the concealment cylinder before urination, and the urination display part is exposed by the tearing of the concealment cylinder after urination, so the appearance is clearer than before before and after urination It can create change and make it easier for children to get interested.
　＜請求項２記載の発明＞
　前記隠蔽筒体の外面に、前記排尿表示部とは異なる初期表示部が外部から視認可能なように設けられている、請求項１記載の使い捨ておむつ。 <Invention of Claim 2>
The disposable diaper according to claim 1, wherein an initial display portion different from the urination display portion is provided on the outer surface of the concealed cylinder so as to be visible from the outside.
　（作用効果）
　隠蔽筒体にこのような初期表示部を設けておくことにより、無から有への外観変化だけでなく、多種多様な外観変化を生み出すことができる。例えば、トイレトレーニング用途においては、初期表示部を笑顔のキャラクターとし、排尿時部を泣き顔のキャラクターとすると、おむつに排尿をした場合キャラクターを泣かせることになるため、トイレでの排尿を促すことができる。 (Function and effect)
By providing such an initial display portion in the concealed cylindrical body, not only the appearance change from non-existence but also a wide variety of appearance changes can be generated. For example, in toilet training, if the initial display part is a smiling character and the urination time part is a crying face character, urination in the diaper will cause the character to cry, which can encourage urination in the toilet .
　＜請求項３記載の発明＞
　前記隠蔽筒体における前記排尿表示部と重なる部分又はその近傍に、前記裂開のためのミシン目が設けられている、請求項２記載の使い捨ておむつ。 <Invention of Claim 3>
The disposable diaper according to claim 2, wherein a perforation for the tearing is provided in a portion of the concealing cylinder that overlaps with the urination display portion or in the vicinity thereof.
　（作用効果）
　これにより、高吸収性ポリマーの膨張力を利用した隠蔽筒体の裂開がより確実に、所望の位置でなされるようになる。 (Function and effect)
As a result, the concealed cylindrical body that uses the expansion force of the superabsorbent polymer is more reliably cleaved at a desired position.
　＜請求項４記載の発明＞
　前記隠蔽筒体が前記裂開の際に分断し、前記隠蔽筒体における前記排尿表示部と対向していた部分が、前記袋体に対する相対位置の変化により、前記袋体における前記排尿表示部を有しない面と対向するようになる、請求項３記載の使い捨ておむつ。 <Invention of Claim 4>
The concealed cylindrical body is divided at the time of dehiscence, and the portion of the concealed cylindrical body that is opposed to the urination display section changes the relative position with respect to the bag body so that the urination display section of the bag body is changed. The disposable diaper of Claim 3 which comes to oppose the surface which does not have.
　（作用効果）
　これにより、排尿後に排尿表示部が現れたときには初期表示部が袋体の排尿表示部と反対側に隠れるため、初期表示部が残って排尿表示部と並んで視認されることがなくなり、外観上完全な表示変化が可能となる。 (Function and effect)
Thus, when the urination display portion appears after urination, the initial display portion is hidden on the opposite side of the bag body from the urination display portion, so that the initial display portion remains and is not seen alongside the urination display portion. A complete display change is possible.
　＜請求項５記載の発明＞
　前記袋体における少なくとも前記隠蔽筒体による隠蔽部分が、袋体の内方に折り込まれるとともに、この折り込み部に前記排尿表示部が設けられている、請求項１～４のいずれか１項に記載の使い捨ておむつ。 <Invention of Claim 5>
The concealed portion of at least the concealed cylindrical body in the bag body is folded inward of the bag body, and the urination display section is provided in the folded portion. Disposable diapers.
　（作用効果）
　排尿表示部を袋体の折り込み部に設けることにより、隠蔽筒体の内側において排尿表示部が袋体の折り込みにより更に隠蔽されることになるため、隠蔽筒体の素材として高い隠蔽性のものを用いずとも、全体として高い隠蔽性を確保することができる。 (Function and effect)
By providing the urination display part in the folding part of the bag body, the urine display part is further concealed by folding the bag body inside the concealing cylinder, so that a material with high concealment is used as the material of the concealing cylinder. Even if not used, high concealment can be ensured as a whole.
　＜請求項６記載の発明＞
　前記隠蔽筒体は、前記袋体における前記排尿表示部を有しない面に接合されるとともに、この接合部分以外では前記袋体に接合されていない、請求項１～５のいずれか１項に記載の使い捨ておむつ。 <Invention of Claim 6>
6. The concealing cylinder is bonded to a surface of the bag that does not have the urination display portion, and is not bonded to the bag except for the bonded portion. Disposable diapers.
　（作用効果）
　隠蔽筒体の全体が袋体に固定されていなくてもよいが、その場合、隠蔽筒体がずれて、排尿表示部が出現しないおそれがあるため、このように排尿表示部を有しない面に対してのみ接合しておくのが好ましい。 (Function and effect)
The entire concealed cylinder may not be fixed to the bag, but in that case, the concealed cylinder may be displaced and the urination display part may not appear. It is preferable to join only to it.
　＜請求項７記載の発明＞
　前記袋体及び隠蔽筒体が前記表面シートと前記吸収体との間に介在されるとともに、前記排尿表示部が前記袋体における前記表面シート側の面に設けられているか、又は
　前記袋体及び隠蔽筒体が前記吸収体と前記液不透過性シートとの間に介在されるとともに、前記排尿表示部が前記袋体における前記液不透過性シート側の面に設けられている、
　請求項１～５のいずれか１項に記載の使い捨ておむつ。 <Invention of Claim 7>
The bag body and the concealing cylinder are interposed between the top sheet and the absorber, and the urination display part is provided on the surface of the bag body on the top sheet side, or the bag body and A concealing cylinder is interposed between the absorber and the liquid-impermeable sheet, and the urination display part is provided on the surface of the bag body on the liquid-impermeable sheet side,
The disposable diaper according to any one of claims 1 to 5.
　（作用効果）
　このような構造により、殆ど多くの使い捨ておむつに対して本発明の袋体及び隠蔽筒体を適用することができる。 (Function and effect)
With such a structure, the bag and the concealed cylinder of the present invention can be applied to almost all disposable diapers.
　以上のとおり、本発明によれば、排尿前後においてはっきりとした外観変化があり、幼児の興味を引き易い使い捨ておむつになる等の利点がもたらされる。 As described above, according to the present invention, there are advantages such as a disposable diaper that has a distinct appearance change before and after urination, and that is easily attracted by infants.
使い捨ておむつの展開状態の表側を示す平面図である。It is a top view which shows the front side of the expansion | deployment state of a disposable diaper. 使い捨ておむつの展開状態の裏側を示す平面図である。It is a top view which shows the back side of the deployment state of a disposable diaper. 図１のＡ－Ａ断面図である。FIG. 2 is a cross-sectional view taken along the line AA in FIG. 図１のＢ－Ｂ断面図である。FIG. 3 is a cross-sectional view taken along the line BB in FIG. 図１のＣ－Ｃ断面図である。FIG. 2 is a cross-sectional view taken along the line CC of FIG. 使い捨ておむつの装着要領を示す斜視図である。It is a perspective view which shows the attachment point of a disposable diaper. 要部拡大断面図である。It is a principal part expanded sectional view. 袋体及び隠蔽筒体の平面図である。It is a top view of a bag and a concealed cylinder. 袋体及び隠蔽筒体の断面図である。It is sectional drawing of a bag and a concealed cylinder. 使い捨ておむつの展開状態の表側を示す平面図である。It is a top view which shows the front side of the expansion | deployment state of a disposable diaper. 袋体及び隠蔽筒体の断面図である。It is sectional drawing of a bag and a concealed cylinder. 使い捨ておむつの展開状態の表側を示す平面図である。It is a top view which shows the front side of the expansion | deployment state of a disposable diaper.
　以下、本発明の一実施形態について添付図面を参照しつつ説明する。
　図１～図７は、パッドタイプ使い捨ておむつ２００を示している。このパッドタイプ使い捨ておむつ２００は、前後方向中央に対して前側に延在する腹側（前側）部分Ｆ１及び後側に延在する背側（後側）部分Ｂ１とを有するものである。各部の寸法は適宜定めることができ、例えば、物品全長（前後方向長さ）Ｌ１は１５０～４５０ｍｍ程度、全幅Ｗ１は１２０～２００ｍｍ程度とすることができる。符号Ｌ２は吸収体の前後方向長さを、また符号Ｗ２は吸収体の幅をそれぞれ示している。 Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings.
1 to 7 show a pad type disposable diaper 200. This pad-type disposable diaper 200 has a ventral (front) portion F1 extending forward and a back (rear) portion B1 extending rearward with respect to the center in the front-rear direction. The dimensions of each part can be determined as appropriate. For example, the total length (length in the front-rear direction) L1 can be about 150 to 450 mm, and the total width W1 can be about 120 to 200 mm. Symbol L2 indicates the length of the absorber in the front-rear direction, and symbol W2 indicates the width of the absorber.
　パッドタイプ使い捨ておむつ２００は、液不透過性シート２１の内面と、透液性トップシート２２との間に、吸収体２３が介在された基本構造を有している。吸収体２３としては、パルプ繊維の積繊体、セルロースアセテート等のフィラメントの集合体、あるいは不織布を基本とし、必要に応じて高吸収性ポリマーを混合、固着等してなるものを用いることができる。必要に応じて、吸収体２３は図７に示すようにクレープ紙や不織布等からなる包装シート２８により包むことができる。また、吸収体２３の形状は、相対的に前側の部分が後側の部分よりも幅広な帯状、あるいは長方形状、台形状等、適宜の形状とすることができる。吸収体２３における繊維目付け及び高吸収性ポリマーの目付けは適宜定めることができるが、繊維目付けは１００～６００ｇ／ｍ2程度とするのが好ましく、また高吸収性ポリマーの目付けは１００～４００ｇ／ｍ2程度とするのが好ましい。 The pad-type disposable diaper 200 has a basic structure in which an absorber 23 is interposed between the inner surface of the liquid-impermeable sheet 21 and the liquid-permeable top sheet 22. As the absorbent body 23, it is possible to use a laminate of pulp fibers, an aggregate of filaments such as cellulose acetate, or a nonwoven fabric, and a mixture obtained by mixing and fixing a superabsorbent polymer as necessary. . If necessary, the absorbent body 23 can be wrapped with a wrapping sheet 28 made of crepe paper, nonwoven fabric or the like as shown in FIG. Moreover, the shape of the absorber 23 can be set to an appropriate shape such as a strip shape in which the front portion is relatively wider than the rear portion, a rectangular shape, or a trapezoidal shape. The fiber basis weight and the basis weight of the superabsorbent polymer in the absorbent body 23 can be appropriately determined, but the fiber basis weight is preferably about 100 to 600 g / m 2, and the basis weight of the superabsorbent polymer is 100 to 400 g / m 2. It is preferably about 2 .
　吸収体２３の裏側には、液不透過性シート２１が吸収体２３の周縁より所定長さ食み出すように設けられている。液不透過性シート２１としては、ポリエチレンフィルム等の他、ムレ防止の点から遮水性を損なわずに透湿性を備えたシートも用いることができる。この遮水・透湿性シートは、例えばポリエチレンやポリプロピレン等のオレフィン樹脂中に無機充填材を溶融混練してシートを形成した後、一軸または二軸方向に延伸することにより得られる微多孔性シートを用いることができる。 A liquid-impermeable sheet 21 is provided on the back side of the absorber 23 so as to protrude from the periphery of the absorber 23 by a predetermined length. As the liquid-impermeable sheet 21, a sheet having moisture permeability can be used in addition to a polyethylene film or the like without impairing the water barrier from the viewpoint of preventing stuffiness. This water-impervious / breathable sheet is a microporous sheet obtained by, for example, melt-kneading an inorganic filler in an olefin resin such as polyethylene or polypropylene to form a sheet, and then stretching in a uniaxial or biaxial direction. Can be used.
　液不透過性シート２１の外面（裏面）は、外装シート２５により覆われている。外装シート２５としては各種の不織布を用いる。不織布を用いることによって、後述するように、フックテープ３２の非使用時には、フックテープ３２を外装シート２５に固着させることができる。なお、不織布を構成する素材繊維としては、ポリエチレンまたはポリプロピレン等のオレフィン系、ポリエステル系、アミド系等の合成繊維の他、レーヨンやキュプラ等の再生繊維、綿等の天然繊維を用いることができる。 The outer surface (back surface) of the liquid-impermeable sheet 21 is covered with an exterior sheet 25. Various nonwoven fabrics are used as the exterior sheet 25. By using a non-woven fabric, the hook tape 32 can be fixed to the exterior sheet 25 when the hook tape 32 is not used, as will be described later. In addition, as a raw material fiber which comprises a nonwoven fabric, natural fibers, such as regenerated fibers, such as rayon, a cupra, etc., and natural fibers other than synthetic fibers, such as olefin type, polyester, and amide type, such as polyethylene or a polypropylene, can be used.
　吸収体２３の表側は、透液性トップシート２２により覆われている。図示形態ではトップシート２２の側縁から吸収体２３が一部食み出しているが、吸収体３の側縁が食み出さないようにトップシート２２の幅を広げることもできる。トップシート２２としては、有孔または無孔の不織布や穴あきプラスチックシートなどが用いられる。不織布を構成する素材繊維としては、ポリエチレンまたはポリプロピレン等のオレフィン系、ポリエステル系、アミド系等の合成繊維の他、レーヨンやキュプラ等の再生繊維、綿等の天然繊維を用いることができる。 The front side of the absorber 23 is covered with a liquid-permeable top sheet 22. In the illustrated form, the absorber 23 partially protrudes from the side edge of the top sheet 22, but the width of the top sheet 22 can be widened so that the side edge of the absorber 3 does not protrude. As the top sheet 22, a perforated or non-porous nonwoven fabric or a perforated plastic sheet is used. As the material fiber constituting the non-woven fabric, synthetic fibers such as polyethylene or polypropylene such as olefin, polyester, and amide, recycled fibers such as rayon and cupra, and natural fibers such as cotton can be used.
　パッドタイプ使い捨ておむつ２００の前後方向両端部では、外装シート１２および透液性トップシート１が吸収体３の前後端よりも前後両側にそれぞれ延在されて貼り合わされ、吸収体２３の存在しないエンドフラップ部ＥＦが形成されている。 At both ends of the pad-type disposable diaper 200 in the front-rear direction, the outer sheet 12 and the liquid-permeable top sheet 1 are attached to the front and rear ends of the absorbent body 3 so as to extend to the front and rear sides, respectively, and the end flap without the absorbent body 23 is present. Part EF is formed.
　パッドタイプ使い捨ておむつ２００の両側部では、液不透過性シート２１が吸収体２３の側縁よりも外側にそれぞれ延在され、この延在部からトップシート２２の側部までの部分の内面にはギャザーシート２４の幅方向外側の部分２４ｘが前後方向全体にわたり貼り付けられ、吸収体２３の存在しないサイドフラップ部ＳＦを構成している。これらを含め、素材の貼り合わせ部分は、ホットメルト接着剤、ヒートシール、超音波シールにより形成でき、図面では斜線模様で示されている。 On both sides of the pad-type disposable diaper 200, the liquid-impermeable sheet 21 is extended outward from the side edge of the absorber 23, and the inner surface of the portion from the extended part to the side part of the top sheet 22 is provided on the inner side. A portion 24x on the outer side in the width direction of the gather sheet 24 is attached over the entire front-rear direction, and constitutes a side flap portion SF where the absorber 23 does not exist. Including these, the bonded portion of the material can be formed by a hot melt adhesive, heat seal, or ultrasonic seal, and is shown in a hatched pattern in the drawing.
　これらエンドフラップ部ＥＦ及びサイドフラップ部ＳＦ以外の吸収体介在部分が、排泄物を保持する本体部ＢＤを構成する。 The absorber intervening portions other than the end flap portion EF and the side flap portion SF constitute a main body portion BD that holds excrement.
　ギャザーシート２４の素材としては、プラスチックシートやメルトブローン不織布を使用することもできるが、肌への感触性の点で、不織布にシリコンなどにより撥水処理をしたものが好適に使用される。 As a material for the gather sheet 24, a plastic sheet or a melt-blown nonwoven fabric can be used. However, in terms of touch to the skin, a nonwoven fabric that is water-repellent treated with silicon or the like is preferably used.
　ギャザーシート２４の幅方向中央側の部分２４ｃはトップシート２２上にまで延在しており、その幅方向中央側の端部には、細長状弾性部材２４Ｇが前後方向に沿って伸張状態でホットメルト接着剤等により固定されている。この細長状弾性部材２４Ｇとしては、糸状、紐状、帯状等に形成された、スチレン系ゴム、オレフィン系ゴム、ウレタン系ゴム、エステル系ゴム、ポリウレタン、ポリエチレン、ポリスチレン、スチレンブタジエン、シリコン、ポリエステル等、通常使用される素材を用いることができる。 A portion 24c on the center side in the width direction of the gather sheet 24 extends to the top sheet 22, and an elongated elastic member 24G is stretched along the front-rear direction at the end portion on the center side in the width direction. It is fixed with a melt adhesive or the like. As the elongated elastic member 24G, styrene rubber, olefin rubber, urethane rubber, ester rubber, polyurethane, polyethylene, polystyrene, styrene butadiene, silicon, polyester, etc., which are formed in a thread shape, a string shape, a belt shape, or the like. Ordinarily used materials can be used.
　両ギャザーシート２４，２４は、幅方向外側の部分２４ｘが前後方向全体にわたり物品内面（図示形態ではトップシート２２表面および外装シート３２内面）に貼り合わされて固定されるとともに、幅方向中央側の部分２４ｃが、前後方向の両端部では物品内面（図示形態ではトップシート２２表面）に貼り合わされて固定され、かつ前後方向の両端部の間では物品内面（図示形態ではトップシート２２表面）に固定されていない。この非固定部分は、図４に示されるように、物品内面（図示形態ではトップシート２２表面）に対して起立可能な立体ギャザーとなる部分であり、その起立基端２４ｂはギャザーシート２４における幅方向外側の固定部分２４ｘと内側の部分２４ｃとの境に位置する。 Both the gather sheets 24, 24 are fixed by being bonded to the inner surface of the article (in the illustrated form, the surface of the top sheet 22 and the inner surface of the exterior sheet 32) across the entire front and rear direction. 24c is bonded and fixed to the inner surface of the article (the surface of the top sheet 22 in the illustrated embodiment) at both ends in the front-rear direction, and is fixed to the inner surface of the article (the surface of the top sheet 22 in the illustrated embodiment) between both ends in the front-rear direction. Not. As shown in FIG. 4, the non-fixed portion is a portion that becomes a three-dimensional gather that can stand up with respect to the inner surface of the article (the surface of the top sheet 22 in the illustrated embodiment), and the standing base end 24 b has a width in the gather sheet 24. It is located at the boundary between the fixed portion 24x on the outer side in the direction and the inner portion 24c.
　図２～図６に示すように、パッドタイプ使い捨ておむつ２００の裏面には、粘着剤層からなるズレ止め部３０が設けられている。このズレ止め部３０としては、フック状突起を多数有するメカニカルファスナーのフックテープ（面ファスナーの雄材）を用いることも可能である。フック状突起の形状としてはキノコ状の他、フック状、レ字状、Ｊ字状、Ｔ字状、ダブルＪ字状（Ｊ字状のものを背合わせに結合した形状のもの）等が存在するが、いずれの形状であっても良い。なお、フックテープはホットメルト接着剤等により取り付けることができる。ズレ止め部３０は、図示例のように、剥離シート３１により剥離可能に被覆しておき、使用時に剥離シート３１を剥離してズレ止め部３０を露出させるのが望ましい。 As shown in FIGS. 2 to 6, on the back surface of the pad type disposable diaper 200, a slip stopper 30 made of an adhesive layer is provided. As this misalignment stopper 30, it is also possible to use a hook tape of a mechanical fastener (a male material of a hook-and-loop fastener) having a large number of hook-shaped protrusions. The hook-shaped projections include mushrooms, hooks, les, Js, Ts, double Js (Js that are joined back to back), etc. However, any shape is acceptable. The hook tape can be attached with a hot melt adhesive or the like. As shown in the illustrated example, it is desirable that the slip stopper 30 is releasably coated with a release sheet 31 and the release stopper 31 is exposed by peeling the release sheet 31 during use.
　図示例では、ズレ止め部３０を腹側部分Ｆ１及び背側部分Ｂ１の両者にわたり連続するように設けているが、腹側部分Ｆ１及び背側部分Ｂ１のそれぞれに別々に設けたり、いずれか一方のみに設けたりすることもでき、その数も、複数とするほか、単数とすることもできる。ズレ止め部３０を複数設ける場合、腹側部分Ｆ１及び背側部分Ｂ１に各少なくとも一つは設けるのが好ましい。 In the illustrated example, the misalignment stopper 30 is provided so as to be continuous over both the abdominal part F1 and the dorsal part B1, but may be provided separately for each of the abdominal part F1 and the dorsal part B1. The number can be provided only in the number, and the number can be plural or singular. In the case where a plurality of misalignment stop portions 30 are provided, it is preferable to provide at least one each on the ventral portion F1 and the back portion B1.
　ズレ止め部３０は、その全体が本体部ＢＤの範囲内に収まるような寸法及び配置となっているのが好ましい。具体的には、ズレ止め部３０の幅Ｗ３は吸収体２３の幅Ｗ２の７０～８０％程度、前後方向長さＬ３（前後方向に複数設ける場合は総長さ）は吸収体２３の全長Ｌ２の３０～４０％程度であるのが好ましい。 The displacement stopper 30 is preferably sized and arranged so that the entirety thereof is within the range of the main body BD. Specifically, the width W3 of the misalignment stopper 30 is about 70 to 80% of the width W2 of the absorber 23, and the length L3 in the front-rear direction (the total length in the case of providing a plurality in the front-rear direction) is the total length L2 of the absorber 23. It is preferably about 30 to 40%.
　（排尿表示部）
　特徴的には、図４、図５、図８、図９、及び図１１に示すように、表面シート２２と吸収体２３との間に、液透過性を有する袋体４０と、袋体４０内に密封された高吸収性ポリマー４１と、袋体４０の外周を包む隠蔽筒体５０とを備えており、袋体４０の表面シート２２側の面のうち隠蔽筒体５０により被覆された部分に排尿表示部４２が設けられている。 (Urine display)
Characteristically, as shown in FIG. 4, FIG. 5, FIG. 8, FIG. 9, and FIG. 11, a bag body 40 having liquid permeability between the topsheet 22 and the absorbent body 23, and the bag body 40. A portion of the surface of the bag body 40 on the surface sheet 22 side that is covered with the concealing cylinder 50, including the superabsorbent polymer 41 sealed inside and the concealing cylinder 50 that wraps the outer periphery of the bag body 40. A urination display section 42 is provided.
　排尿表示部４２は、キャラクター、文字等のデザインを印刷により袋体４０の素材に直接付加する他、印刷を施したシートを袋体４０の外面に貼り付けることにより間接的に付加しても良い。 The urination display unit 42 may add a design such as a character, a character, or the like directly to the material of the bag body 40 by printing, or may indirectly add a printed sheet to the outer surface of the bag body 40. .
　図８及び図９に示す例のように、袋体４０における表面シート２２側の部分のうち幅方向中間部が、前後方向に沿う折り目により袋体４０の内方に折り込まれるとともに、この折り込み部４３に排尿表示部４２が設けられていると、隠蔽筒体５０の内側において排尿表示部４２が袋体４０の折り込みにより更に隠蔽されることになるため、隠蔽筒体５０の素材として高い隠蔽性のものを用いずとも、全体として高い隠蔽性を確保することができる。図示例の折り込み形態は、断面がＺ字状となる形態であるが、Ω状、逆さΩ状等にすることもでき、また折り込みを幅方向に複数設け、各折り込み部４３に排尿表示部４２を隠蔽しておいても良い。 As in the example shown in FIGS. 8 and 9, the width direction intermediate portion of the portion of the bag body 40 on the surface sheet 22 side is folded inward of the bag body 40 by a fold along the front-rear direction. When the urination display part 42 is provided in 43, the urine display part 42 is further concealed by folding the bag body 40 inside the concealment cylinder 50, so that high concealability is provided as the material of the concealment cylinder 50. High concealment can be ensured as a whole even without using one. The folded form of the illustrated example is a form in which the cross section is Z-shaped, but it can also be Ω-shaped, inverted Ω-shaped or the like, and a plurality of folds are provided in the width direction. May be hidden.
　もちろん、図１１に示すように袋体４０を折り込むことなく、その表面に排尿表示部４２を設ける形態も採用することができ、その場合、構造が簡素となり、製造も容易であるため好ましい。 Of course, as shown in FIG. 11, a form in which the urine display portion 42 is provided on the surface of the bag body 40 without being folded can also be adopted. In this case, the structure is simplified and the manufacturing is easy, which is preferable.
　袋体４０の寸法は適宜定めることができるが、その幅は吸収体２３の幅Ｗ２の３０～６０％程度であるのが好ましく、前後方向長さは吸収体２３の前後方向長さＬ２の１０～３０％程度であるのが好ましい。また、袋体４０の位置は、股間部の範囲、特に物品の前端を０％とし後端を１００％としたとき３０～７０％の範囲に袋体４０の少なくとも一部が含まれるように配置することが望ましい。さらに、袋体４０及び隠蔽筒体５０は図示例では股間部の前側に一つしか設けていないが、前後方向に間隔を空けて複数設けることもできる。 The size of the bag body 40 can be determined as appropriate, but the width is preferably about 30 to 60% of the width W2 of the absorber 23, and the length in the front-rear direction is 10 times the length L2 in the front-rear direction of the absorber 23. It is preferably about 30%. Further, the position of the bag body 40 is arranged such that at least a part of the bag body 40 is included in the range of the crotch part, particularly in the range of 30 to 70% when the front end of the article is 0% and the rear end is 100%. It is desirable to do. Further, in the illustrated example, only one bag body 40 and concealing cylinder body 50 are provided on the front side of the crotch portion, but a plurality of bag bodies 40 and concealing cylinder bodies 50 may be provided at intervals in the front-rear direction.
　袋体４０及び隠蔽筒体５０の素材としては、透液性を有していてかつ高吸収性ポリマー４１粒子が密封される（抜け出ない）シートであれば良く、例えば不織布、微小な孔が開いたシート、ティッシュペーパー、特にクレープ紙等を用いることができる。不織布を使用する場合、親水性のもの（親水剤が付与されたもの含む）が好ましい。また、不織布の中でも、スパンボンド不織布層間にメルトブローン不織布層を有する積層不織布（例えばＳＭＳ不織布、ＳＭＭＳ不織布等）が特に好適であり、その材質はポリプロピレン、ポリエチレン／ポリプロピレン複合材などを使用できる。目付けは、５～４０ｇ／ｍ2、特に１０～３０ｇ／ｍ2のものが望ましい。 The material of the bag body 40 and the concealing cylinder body 50 may be a sheet that has liquid permeability and that can be sealed (does not come out) with the superabsorbent polymer 41 particles. Sheet, tissue paper, especially crepe paper can be used. When using a nonwoven fabric, hydrophilic ones (including those provided with a hydrophilic agent) are preferred. Among nonwoven fabrics, laminated nonwoven fabrics having a meltblown nonwoven fabric layer between spunbonded nonwoven fabric layers (for example, SMS nonwoven fabric, SMMS nonwoven fabric, etc.) are particularly suitable, and polypropylene, polyethylene / polypropylene composites, etc. can be used as the material. The basis weight is preferably 5 to 40 g / m 2 , particularly 10 to 30 g / m 2 .
　袋体４０内に密封される高吸収性ポリマー４１（ＳＡＰ）は、吸収体２３に用いるものと同様のものを用いることができ、粉粒状のものや、繊維状のもの等、特に限定されるものではないが、吸水量が４０ｇ／ｇ以上のものが好適である。高吸収性ポリマー４１粒子としては、でんぷん系、セルロース系や合成ポリマー系などのものがあり、でんぷん－アクリル酸（塩）グラフト共重合体、でんぷん－アクリロニトリル共重合体のケン化物、ナトリウムカルボキシメチルセルロースの架橋物やアクリル酸（塩）重合体などのものを用いることができる。また、高吸収性ポリマー４１粒子の粒径は１０００μｍ以下、特に１５０～４００μｍのものが望ましい。また、高吸収性ポリマー４１粒子としては、吸水速度が４０秒以下のものが好適である。 The superabsorbent polymer 41 (SAP) sealed in the bag body 40 can be the same as that used for the absorbent body 23, and is particularly limited to a granular form or a fibrous form. Although not a thing, a thing with a water absorption of 40 g / g or more is suitable. The superabsorbent polymer 41 particles include starch-based, cellulose-based and synthetic polymer-based particles such as starch-acrylic acid (salt) graft copolymer, saponified starch-acrylonitrile copolymer, sodium carboxymethyl cellulose A cross-linked product or an acrylic acid (salt) polymer can be used. The particle diameter of the superabsorbent polymer 41 particles is preferably 1000 μm or less, particularly 150 to 400 μm. Further, as the superabsorbent polymer 41 particles, those having a water absorption rate of 40 seconds or less are suitable.
　袋体４０内に密封される高吸収性ポリマー４１（ＳＡＰ）の量は適宜定めることができるが、袋体４０の容積に対し、その内部に封入される高吸収性ポリマー４１の吸収飽和時の見かけ容積が１００～５００％となるようにするのが好ましい。袋体４０がマチ等の厚み方向の伸縮構造を有しない場合、その内部に封入する高吸収性ポリマー４１の量は、１０００ｇ／ｍ2以上、特に１５００～２０００ｇ／ｍ2程度とするのが好ましい。 The amount of the superabsorbent polymer 41 (SAP) sealed in the bag body 40 can be determined as appropriate. The apparent volume is preferably 100 to 500%. In the case where the bag body 40 does not have a stretchable structure in the thickness direction such as gusset, the amount of the superabsorbent polymer 41 enclosed therein is preferably 1000 g / m 2 or more, particularly about 1500 to 2000 g / m 2. .
　なお、袋体４０内には、必要に応じて高吸収性ポリマー４１粒子以外の吸収材、例えばパルプ繊維等の親水性短繊維を混合することもできる。 It should be noted that an absorbent material other than the superabsorbent polymer 41 particles, for example, hydrophilic short fibers such as pulp fibers, can be mixed in the bag body 40 as necessary.
　他方、図示形態では、排尿表示部４２と重なる部分（又はその近傍でも良い）の外面に、排尿表示部４２とは異なる初期表示部５１が設けられている。この初期表示部５１は排尿前において表面シート２２を通して外部から視認可能なように構成される。初期表示部５１は、キャラクター、文字等のデザインを印刷により袋体４０の素材に直接付加する他、印刷を施したシートを袋体４０の外面に貼り付けることにより間接的に付加しても良い。なお、平面的に見て初期表示部５１が排尿表示部４２と重なる場合において、初期表示部５１の濃淡を排尿表示部４２より濃くすると、初期表示部５１が排尿表示部４２を隠蔽する効果が得られるため好ましい。さらに、平面的に見て初期表示部５１が排尿表示部４２と重なる場合において、排尿表示部４２が初期表示部５１の周縁部より内側にのみ設けられていると、同様に、初期表示部５１が排尿表示部４２を隠蔽する効果が得られるため好ましい。 On the other hand, in the illustrated embodiment, an initial display unit 51 different from the urination display unit 42 is provided on the outer surface of a portion overlapping the urination display unit 42 (or the vicinity thereof). The initial display unit 51 is configured to be visible from the outside through the surface sheet 22 before urination. The initial display unit 51 may add a design such as a character, a character, or the like directly to the material of the bag body 40 by printing, or may indirectly add a printed sheet to the outer surface of the bag body 40. . In addition, when the initial display unit 51 overlaps the urination display unit 42 in plan view, if the shade of the initial display unit 51 is darker than the urination display unit 42, the initial display unit 51 has an effect of concealing the urination display unit 42. Since it is obtained, it is preferable. Further, when the initial display unit 51 overlaps the urination display unit 42 in plan view, if the urination display unit 42 is provided only inside the peripheral edge of the initial display unit 51, the initial display unit 51 is similarly provided. Is preferable because an effect of concealing the urination display part 42 is obtained.
　また、図示形態では、隠蔽筒体５０における排尿表示部４２と重なる部分（又はその近傍でも良い）に、前縁から後縁に達するミシン目５２が設けられている。このミシン目５２は隠蔽筒体５０の周方向の繋がりを分断できる限り、前後方向に沿って設けるだけでなく、斜め方向に沿って設けても良い。 In the illustrated embodiment, a perforation 52 extending from the front edge to the rear edge is provided at a portion (or the vicinity thereof) overlapping the urination display portion 42 of the concealed cylinder 50. The perforation 52 may be provided not only along the front-rear direction but also along an oblique direction as long as the connection in the circumferential direction of the concealed cylindrical body 50 can be divided.
　このようなパッドタイプ使い捨ておむつにおいては、排尿前には図１、図９（ａ）、図１１（ａ）に示すように、隠蔽筒体５０に設けられた初期表示部５１が外部から視認可能となっている。これに対して、排尿があると、図９（ｂ）、図１１（ｂ）に示すように、袋体４０内の高吸収性ポリマー４１が尿を吸収して膨張するのに伴い袋体４０が膨張し、その膨張に抗しきれずに隠蔽筒体５０が裂開して、その裂開部分から排尿表示部４２が露出し（特に図９に示す形態では折り込み部４３が展開して排尿表示部４２が外側に現出する）、この露出した排尿表示部４２が図１２に示すように外部から視認可能となる。 In such a pad-type disposable diaper, before urination, as shown in FIGS. 1, 9A, and 11A, the initial display portion 51 provided in the concealed cylinder 50 can be visually recognized from the outside. It has become. On the other hand, when there is urination, as shown in FIG. 9B and FIG. 11B, as the superabsorbent polymer 41 in the bag 40 absorbs urine and expands, the bag 40 The concealed cylindrical body 50 is cleaved without resisting the expansion, and the urination display portion 42 is exposed from the cleaved portion (particularly, in the form shown in FIG. The exposed urination display part 42 becomes visible from the outside as shown in FIG.
　したがって、排尿表示部４２は排尿前には隠蔽筒体５０により隠蔽されており、排尿後に隠蔽筒体５０が裂開することにより排尿表示部４２が露出するため、排尿前後において従来よりもはっきりとした外観変化を生み出すことができ、幼児の興味を引き易いものとなる。 Therefore, the urination display part 42 is concealed by the concealment cylinder 50 before urination, and the urination display part 42 is exposed by the tearing of the concealment cylinder 50 after urination, so that it is clearer than before before and after urination. It can make a change in appearance and easily attract the interest of infants.
　また、隠蔽筒体５０に初期表示部５１が設けられているため、無から有への外観変化だけでなく、多種多様な外観変化を生み出すことができる。特に図示形態では、トイレトレーニング用途を想定し、初期表示部５１を笑顔のキャラクターの図柄とし、排尿時部を泣き顔のキャラクターの図柄としている。この場合、おむつに排尿をした場合キャラクターを泣かせることになるため、トイレでの排尿を促すことができる。 Further, since the initial display unit 51 is provided in the concealed cylinder 50, not only the appearance change from nothing to existence but also a wide variety of appearance changes can be generated. In particular, in the illustrated form, assuming the use of toilet training, the initial display unit 51 is a symbol of a smiling character, and the urination portion is a symbol of a crying face character. In this case, if the diaper urinates, the character will cry, so urination in the toilet can be promoted.
　さらに、図示形態では、裂開のためのミシン目５２が設けられていることにより、高吸収性ポリマー４１の膨張力を利用した隠蔽筒体５０の裂開がより確実に、所望の位置でなされるようになる。 Further, in the illustrated embodiment, the perforation 52 for tearing is provided, so that the concealed cylindrical body 50 using the expansion force of the superabsorbent polymer 41 is more reliably split at a desired position. Become so.
　なお、排尿があったときには、図９に示すように袋体４０が大きく膨張し、隠蔽筒体５０における排尿表示部４２と対向していた部分が、袋体４０に対する相対位置の変化により、袋体４０における排尿表示部４２を有しない面（裏面）と対向するようになると、排尿後に排尿表示部４２が現れたときには初期表示部５１が袋体４０の排尿表示部４２と反対側に隠れるため、初期表示部５１が残って排尿表示部４２と並んで視認されることがなくなり、外観上完全な表示変化が可能となるため好ましい。しかし、袋体４０の膨張の程度及び隠蔽筒体５０の初期表示部５１の相対移動は、図１１に示すように、排尿表示部４２が露出する限り、初期表示部５１が隠れずに表示されたままとなる程度であっても良い。 When urination occurs, the bag body 40 expands greatly as shown in FIG. 9, and the portion of the concealed cylinder 50 that faces the urine display portion 42 changes due to a change in the relative position with respect to the bag body 40. When the urination display part 42 appears after urination when the urination display part 42 of the body 40 does not have the urination display part 42 (back side), the initial display part 51 is hidden on the opposite side of the urine display part 42 of the bag body 40. The initial display portion 51 remains and is not viewed alongside the urination display portion 42, which is preferable because the display can be completely changed in appearance. However, the degree of expansion of the bag 40 and the relative movement of the initial display 51 of the concealed cylinder 50 are displayed without hiding the initial display 51 as long as the urine display 42 is exposed, as shown in FIG. It may be a degree to remain.
　＜その他＞
　（ａ）高吸収性ポリマー４１の膨張力により隠蔽筒体５０が裂開して排尿表示部４２が露出する程度に、隠蔽筒体５０の素材が弱い場合（例えば坪量１０～１５ｇ／ｍ2程度のクレープ紙）には、裂開用ミシン目５２は省略することができる。
　（ｂ）袋体４０及び隠蔽筒体５０等の介在部位は、液不透過性シート２１よりも表面シート２２側であれば特に限定されないが、例えばおむつを装着した状態でおむつ外面に排尿表示を行うこともでき、その場合には、吸収体２３と液不透過性シートとの間に介在させるとともに、排尿表示部４２を袋体４０における液不透過性シート側の面に設けるのが望ましい。この場合、袋体４０内の高吸収性ポリマー４１が吸収膨潤していわゆるゲルブロッキングにより厚み方向の液の透過性が低下しても、袋体４０が吸収体２３の下側に位置しているため、表面シート２２側から吸収体２３への液の透過性に影響を与えない利点もある。
　（ｃ）隠蔽筒体５０は分断せずに一部（例えば縦方向中間部）残して筒体の裂け目から袋体４０の排尿表示部４２が膨出する形態としても良い。
　（ｄ）初期表示部５１は省略することができ、その場合、排尿前においては表示のない部分に、排尿後に排尿表示部４２が出現するようになる。
　（ｅ）隠蔽筒体５０の全体が袋体４０に固定されていなくてもよいが、その場合、隠蔽筒体５０がずれて、排尿表示部４２が出現しないおそれがあるため、隠蔽筒体５０は、袋体４０における排尿表示部４２を有しない面にホットメルト接着剤等の接合手段６０により接合し、この接合部分以外では袋体４０に接合しないのが好ましい。
　（ｆ）袋体４０及び隠蔽筒体５０は、視認性の観点から外部に最も近い位置に設けるのが好ましい。例えば、図示例の場合は、表面シート２１の直下に設けるのが好ましく、上記（ｂ）の形態では液不透過性シートの直上に設けるのが好ましい。 <Others>
(A) When the material of the concealed cylindrical body 50 is weak enough that the concealed cylindrical body 50 is cleaved by the expansion force of the superabsorbent polymer 41 and the urination display part 42 is exposed (for example, a basis weight of 10 to 15 g / m 2). In the case of crepe paper), the cleavage perforation 52 can be omitted.
(B) Intervening sites such as the bag 40 and the concealing cylinder 50 are not particularly limited as long as they are on the surface sheet 22 side of the liquid-impermeable sheet 21, but for example, a urine display is displayed on the outer surface of the diaper with the diaper attached. In this case, it is desirable to interpose between the absorbent body 23 and the liquid-impermeable sheet and to provide the urination display part 42 on the surface of the bag body 40 on the liquid-impermeable sheet side. In this case, even if the superabsorbent polymer 41 in the bag body 40 absorbs and swells and the permeability of the liquid in the thickness direction is reduced due to so-called gel blocking, the bag body 40 is positioned below the absorber 23. Therefore, there is also an advantage that the liquid permeability from the surface sheet 22 side to the absorber 23 is not affected.
(C) It is good also as a form which the urination display part 42 of the bag body 40 bulges out from the tear of a cylinder body, leaving a part (for example, longitudinal direction intermediate part), without concealing the concealment cylinder body 50.
(D) The initial display unit 51 can be omitted. In this case, the urination display unit 42 appears after urination in a portion that is not displayed before urination.
(E) Although the entire concealed cylinder 50 may not be fixed to the bag body 40, in that case, the concealed cylinder 50 may be displaced and the urination display part 42 may not appear. Is preferably bonded to the surface of the bag body 40 that does not have the urine display portion 42 by a bonding means 60 such as a hot-melt adhesive, and is not bonded to the bag body 40 except for this bonded portion.
(F) It is preferable to provide the bag body 40 and the concealed cylinder body 50 at a position closest to the outside from the viewpoint of visibility. For example, in the case of the illustrated example, it is preferably provided directly below the top sheet 21, and in the form (b), it is preferably provided immediately above the liquid-impermeable sheet.
　本発明は、上記例のようなパッドタイプ使い捨ておむつだけでなく、テープタイプやパンツタイプ等、各種の使い捨ておむつに利用できるものである。 The present invention can be used for various disposable diapers such as a tape type and a pants type as well as a pad type disposable diaper as in the above example.
　２１…不透液性バックシート、２２…透液性トップシート、２３…吸収体、２４…ギャザーシート、２５…外装シート、３０…ズレ止め部、３１…剥離シート、４０…袋体、４１…高吸収性ポリマー、４２排尿表示部、５０…隠蔽筒体、５１…初期表示部。 DESCRIPTION OF SYMBOLS 21 ... Impervious back sheet, 22 ... Liquid permeable top sheet, 23 ... Absorber, 24 ... Gather sheet, 25 ... Exterior sheet, 30 ... Deviation stop part, 31 ... Release sheet, 40 ... Bag body, 41 ... Superabsorbent polymer, 42 urination display, 50 ... concealed cylinder, 51 ... initial display.

Claims (7)

  1. 　液透過性の表面シートと、液不透過性シートと、これらの間に介在された吸収体とを備えた、使い捨ておむつにおいて、
    　液透過性を有する袋体と、前記袋体内に密封された高吸収性ポリマーと、前記袋体を包む隠蔽筒体と、袋体の外面のうち前記隠蔽筒体により被覆隠蔽された部分に設けられた排尿表示部とを、前記液不透過性シートの前記表面シート側に備えており、
    　排尿があり、前記袋体内の高吸収性ポリマーに尿が吸収されると、前記高吸収性ポリマーの膨張に伴い前記袋体が膨張し、その膨張に抗しきれずに前記隠蔽筒体が裂開して、その裂開部分から前記排尿表示部が露出し、この露出した排尿表示部が外部から視認可能となるように構成した、
    　ことを特徴とする使い捨ておむつ。     In a disposable diaper comprising a liquid-permeable surface sheet, a liquid-impermeable sheet, and an absorbent body interposed therebetween,
    Provided in a liquid-permeable bag body, a superabsorbent polymer sealed in the bag body, a concealing cylinder body that wraps the bag body, and a portion of the outer surface of the bag body that is covered and concealed by the concealing cylinder body Provided with the urination display portion provided on the top sheet side of the liquid-impermeable sheet,
    When there is urination and urine is absorbed by the superabsorbent polymer in the bag body, the bag body expands as the superabsorbent polymer expands, and the concealed cylindrical body tears open without resisting the expansion. Then, the urination display part is exposed from the cleaved portion, and the exposed urination display part is configured to be visible from the outside.
    A disposable diaper characterized by that.
  2. 　前記隠蔽筒体の外面に、前記排尿表示部とは異なる初期表示部が外部から視認可能なように設けられている、請求項１記載の使い捨ておむつ。 The disposable diaper according to claim 1, wherein an initial display portion different from the urination display portion is provided on the outer surface of the concealed cylindrical body so as to be visible from the outside.
  3. 　前記隠蔽筒体における前記排尿表示部と重なる部分又はその近傍に、前記裂開のためのミシン目が設けられている、請求項２記載の使い捨ておむつ。 The disposable diaper according to claim 2, wherein a perforation for the tearing is provided in a portion overlapping the urination display portion or in the vicinity thereof in the concealed cylindrical body.
  4. 　前記隠蔽筒体が前記裂開の際に分断し、前記隠蔽筒体における前記排尿表示部と対向していた部分が、前記袋体に対する相対位置の変化により、前記袋体における前記排尿表示部を有しない面と対向するようになる、請求項３記載の使い捨ておむつ。 The concealed cylindrical body is divided at the time of dehiscence, and the portion of the concealed cylindrical body that is opposed to the urination display section changes the relative position with respect to the bag body so that the urination display section of the bag body is changed. The disposable diaper of Claim 3 which comes to oppose the surface which does not have.
  5. 　前記袋体における少なくとも前記隠蔽筒体による隠蔽部分が、袋体の内方に折り込まれるとともに、この折り込み部に前記排尿表示部が設けられている、請求項１～４のいずれか１項に記載の使い捨ておむつ。 The concealed portion of at least the concealed cylindrical body in the bag body is folded inward of the bag body, and the urination display section is provided in the folded portion. Disposable diapers.
  6. 　前記隠蔽筒体は、前記袋体における前記排尿表示部を有しない面に接合されるとともに、この接合部分以外では前記袋体に接合されていない、請求項１～５のいずれか１項に記載の使い捨ておむつ。 6. The concealing cylinder is bonded to a surface of the bag that does not have the urination display portion, and is not bonded to the bag except for the bonded portion. Disposable diapers.
  7. 　前記袋体及び隠蔽筒体が前記表面シートと前記吸収体との間に介在されるとともに、前記排尿表示部が前記袋体における前記表面シート側の面に設けられているか、又は
    　前記袋体及び隠蔽筒体が前記吸収体と前記液不透過性シートとの間に介在されるとともに、前記排尿表示部が前記袋体における前記液不透過性シート側の面に設けられている、
    　請求項１～５のいずれか１項に記載の使い捨ておむつ。     The bag body and the concealing cylinder are interposed between the top sheet and the absorber, and the urination display part is provided on the surface of the bag body on the top sheet side, or the bag body and A concealing cylinder is interposed between the absorber and the liquid-impermeable sheet, and the urination display part is provided on the surface of the bag body on the liquid-impermeable sheet side,
    The disposable diaper according to any one of claims 1 to 5.
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