WO2016088728A1 - 使い捨ておむつ - Google Patents

使い捨ておむつ Download PDF

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Publication number
WO2016088728A1
WO2016088728A1 PCT/JP2015/083665 JP2015083665W WO2016088728A1 WO 2016088728 A1 WO2016088728 A1 WO 2016088728A1 JP 2015083665 W JP2015083665 W JP 2015083665W WO 2016088728 A1 WO2016088728 A1 WO 2016088728A1
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WO
WIPO (PCT)
Prior art keywords
fastening tape
sheet
engagement
disposable diaper
width direction
Prior art date
Application number
PCT/JP2015/083665
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
坂口　智
Original Assignee
ユニ・チャーム株式会社
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 ユニ・チャーム株式会社 filed Critical ユニ・チャーム株式会社
Priority to CN202010228405.6A priority Critical patent/CN111388205B/zh
Priority to CN201580065548.7A priority patent/CN106999316B/zh
Publication of WO2016088728A1 publication Critical patent/WO2016088728A1/ja

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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 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 specially adapted to be worn around the waist, e.g. diapers, nappies
    • 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

  • This invention relates to the disposable diaper provided with the fastening tape which fastens the front waist area and the back waist area.
  • a tape-type disposable diaper having a fastening tape that fastens the front waist area and the back waist area when worn is known.
  • the fastening tape is fixed to the side flap of the back body of the disposable diaper and is fastened to the target sheet of the front body.
  • the side flap is configured by overlapping a top sheet and a back sheet.
  • the fastening tape is accommodated between the top sheet and the back sheet in the side flap.
  • the fastening tape tip protrudes from the side flap.
  • FIG. 3 and FIG. 4 of Patent Document 1 describe a fastening tape that is folded in three and has a substantially Z-shaped appearance.
  • the fastening tape can be extended by opening the three-fold fold overlapping portion.
  • the male material of the fastening tape is formed on any one of the four surfaces folded and overlapped.
  • the fastening tape may irritate the skin of an infant or the like, it may be perceived as a foreign object by the user.
  • the fastening tape has a great discomfort particularly in the texture and appearance as compared with other portions of the disposable diaper formed of a nonwoven fabric or the like. Therefore, there is a concern that the recent discomfort of users who have increased demand for disposable diapers cannot be wiped out.
  • This invention is made in view of the above-mentioned subject, and it aims at providing the disposable diaper which can reduce the visual and / or tactile discomfort with respect to the user by a fastening tape.
  • the disposable diaper according to the present disclosure includes a front waistline region, a back waistline region, and a fastening tape that fastens the front waistline region and the back waistline region.
  • the fastening tape includes an engagement sheet that can be engaged with at least one of the front waistline region and the back waistline region.
  • the fastening tape is folded to be unfoldable. In a state where the fastening tape is folded, a part of the engagement sheet faces another part of the engagement sheet in a plane that is folded and overlapped with each other.
  • FIG. 1 is a plan view of a disposable diaper according to an embodiment.
  • FIG. 2 is a cross-sectional view of the disposable diaper along the line F1-F1 shown in FIG.
  • FIG. 3 is an enlarged view of the fastening tape in a folded state.
  • FIG. 4 is an enlarged view of the fastening tape in a developed state.
  • FIG. 5 is a cross-sectional view taken along line F2-F2 shown in FIG. 6 is a cross-sectional view taken along line F3-F3 shown in FIG.
  • FIG. 7 is a cross-sectional view of a fastening tape in a developed state according to another embodiment.
  • FIG. 8 is a schematic diagram showing the engagement hook on the engagement sheet in a state where the fastening tape is folded.
  • FIG. 9 is a cross-sectional view of a fastening tape in a folded state according to a modification.
  • FIG. 10 is a cross-sectional view of a fastening tape in a developed state according
  • FIG. 1 is a developed plan view of a disposable diaper 10 according to this embodiment.
  • FIG. 2 is a cross-sectional view of the disposable diaper along the line F1-F1 shown in FIG.
  • the developed view shown in FIG. 1 is a diagram of a state in which the elastic members of the leg stretchable part 75 and the leg side stretchable part 80 are stretched until the top sheets 50 and the side flaps 70 constituting the disposable diaper are not formed. is there.
  • the disposable diaper 10 has a front waistline region 20, a crotch region 25, and a back waistline region 30.
  • the front waistline region 20 is a portion in contact with the front waistline portion (abdomen portion) of the wearer.
  • the rear waist region 30 is a portion in contact with the rear waist portion (back portion) of the wearer.
  • the crotch region 25 is located between the front waistline region 20 and the back waistline region 30.
  • the disposable diaper 10 is formed with a pair of leg openings 35.
  • the leg opening 35 is provided at the outer edge (outer end in the width direction) of the disposable diaper, and is a portion arranged along the circumference of the wearer's leg in a state where the disposable diaper is worn by the wearer. .
  • a direction from the front waistline region 20 to the back waistline region 30 is referred to as a longitudinal direction L
  • a direction orthogonal to the longitudinal direction L is referred to as a width direction W.
  • the disposable diaper 10 has an absorber 40.
  • the absorber 40 has an absorption core 40a and a core wrap 40b.
  • the absorbent core 40a extends over the crotch region 25 and extends from the crotch region 25 toward at least one of the front waistline region 20 and the back waistline region 30.
  • the absorbent core 40a can be appropriately configured using a known member or material such as pulverized pulp or superabsorbent polymer.
  • the absorption core 40a is wrapped by a sheet-like core wrap 40b.
  • the core wrap 40b is a sheet that covers the absorbent core 40a.
  • a low basis weight area 110 having a lower basis weight of the absorbent material than other parts of the absorbent core 40a is formed.
  • the low weight area 110 is located at the center in the width direction of the rear end edge of the absorbent core 40a.
  • the width of the low weight area 110 in the width direction W becomes wider toward the rear end edge of the absorbent core 40a.
  • the low basis weight area 110 has a wedge shape in the plan view of the disposable diaper 10.
  • the low basis weight area 110 has a basis weight that is greater than 0 and not more than 10% of the basis weight of other portions.
  • the low weight area 110 may be formed from a notch that is not completely weighted.
  • a liquid-permeable top sheet 50 is provided on the surface side (skin facing surface side) of the absorber 40.
  • a liquid-impermeable back sheet 60a is provided on the back side (non-skin facing side) of the absorber 40.
  • An exterior sheet 60 is provided on the back side of the back sheet 60a.
  • Side flaps 70 are provided on the outer edges of the absorber 40, respectively.
  • the side flap 70 straddles the front waistline region 20, the crotch region 25, and the back waistline region 30, and is disposed on the outer side in the width direction than the absorber 40.
  • the side flap 70 is comprised by the nonwoven fabric which piled up the 1 sheet or 2 or more sheets.
  • the side flap 70 is located on the skin facing surface side with respect to the absorbent core, and extends outward in the width direction with respect to the absorbent core.
  • the inner edge of the side flap covers the absorbent core, and the outer edge of the side flap is disposed on the outer side in the width direction than the absorbent core.
  • the side flap 70 is provided with a pair of leg stretchable parts 75 that are disposed on the inner side in the width direction than the leg opening 35 and can be stretched in the longitudinal direction L.
  • the leg expansion / contraction part 75 should just be comprised so that the leg opening part 35 can be expanded-contracted to a longitudinal direction, may be arrange
  • a pair of leg side stretchable parts 80 extending along the longitudinal direction L are provided inside the pair of leg stretchable parts 75 in the width direction.
  • the leg side stretchable part 80 is provided at the inner end of the side flap 70 in the width direction, and is an upright stretchable gather.
  • the disposable diaper 10 includes a crotch expansion / contraction part 200 disposed in a region overlapping the absorber in the crotch region 25.
  • the crotch stretchable part 200 is configured to maintain a flat shape in a part of the crotch region 25 when the disposable diaper is worn rather than the other part of the absorber 40.
  • the crotch stretchable part 200 is configured to be stretchable in at least the longitudinal direction L or the width direction W.
  • a first notch 115 and a second notch 125 are formed in the absorption core 40a in the crotch region.
  • the first notch 115 and the second notch 125 are slits formed in the absorber 40.
  • the slit is a portion where no absorbing material exists.
  • the first notch 115 and the second notch 125 each have a notch shape extending from the outer edge of the absorbent core 40a toward the inner side in the width direction.
  • the disposable diaper may not have the crotch stretchable part 200, the first cutout 115, and the second cutout 125.
  • Fastening tape 90 is a pair and fastens the front waistline area 20 and the back waistline area 30. By fastening the front waistline region 20 and the back waistline region 30 together, the fastening tape 90 holds the disposable diaper 10 on the wearer's body.
  • the target portion 900 is provided on the non-skin facing surface of the exterior sheet 60 in the front waistline region 20 or the back waistline region 30.
  • the target portion 900 is configured so that the fastening tape 90 is caught.
  • an air-through nonwoven fabric can be used.
  • the disposable diaper may be configured so that the fastening tape 90 is fixed to the exterior sheet 60 in the front waistline region 20 or the back waistline region 30 without having the target portion 900.
  • a waist elastic part 85 that can be expanded and contracted in the width direction W may be provided between the pair of fastening tapes 90 in the width direction.
  • the waist elastic part 85 contracts between the fastening tapes 90 in the width direction.
  • the waist elastic part 85 is constituted by an elastic sheet.
  • the waist elastic part 85 is a part that substantially expands and contracts in the width direction, and is a concept that excludes a part where the elastic sheet is disposed in a state where the elastic force is not exhibited. Therefore, the outer edge of the waist elastic part which will be described later is not the outer edge of the elastic sheet, but the outer edge of the stretched part.
  • a stretchable film having a basis weight of 20 to 45 g / m 2 is used as the waist stretchable portion 85.
  • the waist elastic part 85 may be configured by other structures such as a plurality of thread rubbers and elastic nonwovens.
  • the waist stretchable portion 85 is stretched to a predetermined magnification with respect to the length in the non-stretched state (natural state), and then adhered to the exterior sheet 60 by a hot melt adhesive or heat treatment.
  • the waist elastic part 85 extends from the center in the width direction of the disposable diaper toward both outer sides in the width direction, and is constituted by a continuous sheet extending in the width direction.
  • the rear end edge of the waist elastic part 85 is located in front of the rear end edge of the disposable diaper. Note that the rear end edge of the waist elastic part 85 may coincide with the rear end edge of the disposable diaper.
  • the front edge of the waist elastic part 85 is located in front of the rear edge of the absorbent core 40a, in front of the rear edge of the core wrap 40b, and in the rear of the rear edge of the leg elastic part 75. . Therefore, at least a part of the waist elastic part 85 overlaps the absorbent core 40a in a plan view of the disposable diaper. Further, the waist elastic part 85 straddles the rear end edge of the absorbent core and the rear end edge of the core wrap, and extends rearward from the rear end edge of the absorbent core and the rear end edge of the core wrap.
  • the outer edge 85WO of the waist elastic part 85 is located on the inner side in the width direction than the inner edge (inner end in the width direction) of the fastening tape.
  • the waist elastic part 85 and the fastening tape 90 are separated in the width direction. Instead of this, the waist elastic part 85 and the fastening tape 90 may overlap without being separated from each other in the width direction.
  • the waist stretchable portion includes a first region 851 extending inward in the width direction from both outer edges 85WO of the waist stretchable portion, and a second region extending inward in the width direction from the inner edge 851WI of the first region 851. 852 and a third region 853 extending inward in the width direction from the inner edge 852WI of the second region 852.
  • the first region 851, the second region 852, and the third region 853 are continuous in the width direction. Therefore, a non-stretchable region that does not stretch in the width direction is not provided between the first region 851 and the second region 852 and between the second region 852 and the third region 853. Further, the inner edge 851WI of the first region 851 coincides with the outer edge 852WO of the second region 852, and the inner edge 852WI of the second region 852 coincides with the outer edge 853WO of the third region 853.
  • the first region 851, the second region 852, and the third region 853 are configured to have different elongation rates in the width direction. Specifically, the expansion rate in the width direction of the second region 852 is lower than the expansion rate in the width direction of the first region 851. Further, the extension ratio in the width direction of the third region 853 is higher than the extension ratio in the width direction of the second region 852. Further, the relationship between the expansion rate in the width direction of the first region 851 and the expansion rate in the width direction of the third region 853 may be the same, or either may be higher. Preferably, the extension ratio in the width direction of the third region 853 is preferably higher than the extension ratio in the width direction of the first region 851.
  • the outer edge 851WO of the first region 851 is located on the outer side in the width direction than the outer edge of the absorbent core 40a.
  • the inner edge 851WI of the first region 851 is located on the inner side in the width direction than the outer edge of the absorbent core. Therefore, the first region is disposed across the outer edge of the absorbent core.
  • the inner edge of the first region may be located outside the width direction of the outer edge of the absorbent core, The inner edge of the first region may coincide with the outer edge of the absorbent core.
  • the second region 852 is located between the first region 851 and the third region 853.
  • the second region 852 is preferably arranged on the inner side in the width direction than the outer edge of the absorbent core 40a.
  • the third region 853 is disposed across the center of the disposable diaper in the width direction.
  • the third region 853 preferably overlaps at least part of the low weight area in plan view.
  • the waist elastic part 85 of the present embodiment may be symmetric with respect to a center line passing through the center in the width direction of the disposable diaper and extending in the longitudinal direction, or may be asymmetric.
  • both the left and right first regions 851 may straddle the outer edge of the absorbent core 40a, or one first region 851 may straddle the outer edge of the absorbent core 40a.
  • both the left and right second regions 852 may be disposed on the inner side in the width direction with respect to the outer edge of the absorbent core 40a, and one second region 852 is wider than the outer edge of the absorbent core 40a. It may be arranged inside the direction.
  • the disposable diaper of the present embodiment may be provided with a region having an extension rate lower than that of the first region 851 outside the first region 851 in the width direction.
  • the waist elastic part 85 is located closer to the non-skin facing surface than the absorbent core 40a.
  • the waist elastic part 85 is disposed between the exterior sheet 60 and the back sheet 60a.
  • the waist elastic part 85 is disposed between the core wrap 40b and the back sheet 60a or the exterior sheet 60. May be.
  • the position of the waist elastic part is not particularly limited. Further, the waist elastic part 85 may be disposed between the side flap 70 and the back sheet 60a or the exterior sheet 60 in a region where the absorber is not disposed.
  • waist circumference elastic part which concerns on this embodiment is comprised so that it may expand-contract in the width direction
  • Elongation rate in this specification means the degree of elongation, and shall be performed by the following measurement method.
  • the disposable diaper 10 is enclosed in a package or the like, the disposable diaper 10 is taken out from the package. Subsequently, the arrangement
  • the fastening tape 90 may be provided outside the width direction W of the rear waistline region 30. Specifically, the fastening tape 90 may be attached to the region of the side flap 70 corresponding to the rear waistline region 30. In this case, the fastening tape 90 may be configured to be fixed to the target portion 900 or the exterior sheet 60 in the front waistline region 20. Instead of this embodiment, the fastening tape 90 may be provided in the front waistline region 20. In this case, the fastening tape 90 may be configured to be fixed to a target portion or an exterior sheet formed in the rear front waistline region 30.
  • the fastening tape 90 is folded so as to be unfoldable before use.
  • FIG. 3 shows the fastening tape 90 in a folded state.
  • FIG. 4 shows the fastening tape 90 in an unfolded state.
  • FIG. 5 is a cross-sectional view of the fastening tape 90 in a folded state along line F2-F2 in FIG.
  • FIG. 6 is a cross-sectional view of the fastening tape 90 in a developed state along line F3-F3 in FIG.
  • the fastening tape 90 is preferably folded in three.
  • the fastening tape 90 includes a base 91 connected to the side flap 70, an engagement sheet 92 provided on the base 91 and engageable with at least one of the front waistline region 20 and the back waistline region 30, Have One surface (engagement surface) of the engagement sheet 92 is provided with an engagement hook 99 as a plurality of engagement members that can be engaged with the front waistline region 20 or the back waistline region 30 (also in FIG. 8). reference).
  • the fastening tape 90 is folded so that the base materials 91 overlap each other in plan view.
  • the free end 93 of the fastening tape 90 that is, the free end of the substrate 91 is composed of one or more nonwoven fabrics. More preferably, the entire base material 91 is formed of one or more nonwoven fabrics.
  • the free end portion 93 of the fastening tape 90 is a portion that is gripped by the user when the fastening tape 90 is unfolded.
  • the engagement sheet 92 may have higher rigidity than the base material 91 of the fastening tape 90, for example, a nonwoven fabric.
  • the fastening tape 90 is folded along the first fold line 95 inside the width direction W perpendicular to the longitudinal direction L from the front waistline region 20 to the back waistline region 30, and along the second fold line 96. And is folded outside in the width direction W (see FIGS. 2 and 5).
  • the second fold line 96 is positioned outside the first fold line 95 in the width direction W in a state where the fastening tape 90 is unfolded (see FIG. 6).
  • the first fold line 95 and the second fold line 96 are formed along the longitudinal direction L of the disposable diaper 10.
  • the free end portion 93 of the fastening tape 90 extends outward in the width direction W in a state where the fastening tape is folded.
  • the rear waist area 30 has a housing portion 72 that houses at least a region of the fastening tape 90 in a folded state where the engagement sheet 92 exists.
  • the accommodating portion 72 may be formed by a space between the side sheet forming the side flap 70 and the exterior sheet 60.
  • the fastening tape 90 is accommodated in the accommodating portion 72 except for the free end portion 93 in a folded state. In this case, only the free end portion 93 of the fastening tape 90 protrudes from the housing portion 72 to the outside.
  • the outer shape 93a of the free end portion 93 of the fastening tape 90 may be formed so as to be continuously connected to the outer shape 30a outside the width direction W of the rear waistline region 30 ( 1 and 3).
  • the rear waist area 30 includes a top sheet 50, a back sheet 60a, and an exterior sheet 60.
  • a region outside the width direction W of the rear waistline region 30, that is, a region where the side flaps 70 are formed there is a region where the top sheet 50 and the exterior sheet 60 are not joined (non-joined region).
  • This non-joining region forms a housing portion 72 that houses the fastening tape 90.
  • the fixed end 94 opposite to the free end 93 of the fastening tape 90 is joined to a sheet existing in the rear waistline region 30.
  • the fastening tape 90 may be fixed to a skin surface side sheet (the side flap 70 in the present embodiment) of the pair of sheets 50 and 60 forming the housing portion 72. In this case, the fastening tape 90 is folded to the opposite side of the skin side sheet. In a state where the fastening tape 90 is unfolded, the engagement surface of the engagement sheet 92 faces the skin surface side.
  • the engagement sheet 92 is disposed on two of the surfaces that are folded and overlapped with each other. More preferably, the engagement sheet 92 is formed over substantially the entire region between the first fold line 95 and the free end portion 93. In the present embodiment, the engagement sheet 92 is formed in a region between the first fold line 95 and the second fold line 96 and a region between the second fold line 96 and the free end portion 93. ing. Preferably, in a state where the fastening tape 90 is folded, the engagement sheets 92 face each other without protruding from each other.
  • the first fold line 95 is formed along the outermost line in the width direction W of the rear waistline region 30.
  • the second fold line 96 is provided between the first fold line 95 and the free end 93, for example, at the center position.
  • the engagement sheet 92 is not provided on the fold lines 95 and 96 where the fastening tape 90 is bent (see FIGS. 4 and 6).
  • the engagement sheet 92 may be provided on fold lines 95 and 96 where the fastening tape 90 is bent.
  • FIG. 7 is a cross-sectional view of a fastening tape in a developed state according to another embodiment.
  • the engagement sheet 92 formed on the base material 91 of the fastening tape 90 is present in both regions across the second fold line 96.
  • an emboss 97 along the fold lines 95 and 96 where the fastening tape 90 is bent is formed on the engagement sheet 92.
  • an emboss 98 may be formed on the base material 91 that forms the fastening tape 90.
  • the emboss may be formed on at least one of the base material 91 or the engagement sheet 92 forming the fastening tape 90.
  • the folded fastening tape 90 is preferably temporarily fixed to each other at the folded portion with a hot melt adhesive or heat seal.
  • the joining of the temporary fixing portion is released by pulling the free end portion 93 of the fastening tape 90, so that the fastening tape 90 can be deployed.
  • the temporary fixing portion is preferably a dot-like hot melt adhesive or heat seal.
  • the hot melt adhesive is preferably disposed on the surface facing the skin side of the disposable diaper after the fastening tape 90 is unfolded.
  • FIG. 8 is a schematic diagram showing the engagement hook 99 on the engagement sheet 92 in the fastening tape 90 in a folded state.
  • the diameter D of the engagement hook 99 is smaller than the interval I between the engagement hooks 99.
  • the engagement hook 99 enters the gap between the engagement hooks 99 facing each other with the fastening tape 90 folded (see FIG. 8).
  • the fastening tape 90 is folded before the disposable diaper 10 is used.
  • a part of the engagement sheet 92 faces another part of the engagement sheet 92 in a plane that is folded and overlapped with each other. That is, one surface (engagement surface) of the engagement sheet 92 that engages with the front waistline region 20 or the back waistline region 30 of the engagement sheet 92 faces each other.
  • the engagement surface of the engagement sheet 92 is completely hidden inside the fastening tape 90. That is, the engagement surface that the user feels most uncomfortable visually and tactilely is folded inside the fastening tape 90. Therefore, user discomfort can be reduced.
  • the engagement sheet 92 contacts the other part of the fastening tape 90 in a state where the fastening tape 90 is folded.
  • the fastening tape 90 is formed from a material that easily engages with the engagement sheet 92, for example, a nonwoven fabric
  • the engagement sheet 92 may be difficult to pull out by engaging the other part of the fastening tape 90. is there.
  • the engagement sheet 92 since the engagement sheet 92 faces each other in a state where the fastening tape 90 is folded, a part or all of the engagement surface of the engagement sheet 92 is in contact with the other part of the fastening tape 90. It has been made difficult.
  • the fastening tape 90 can be easily pulled out only by pulling the free end portion 93 sideways along the width direction W.
  • the frictional force when the fastening tape 90 is developed while the engaging sheets 92 rub against each other is sufficiently smaller than the frictional force when the fastening tape 90 is pulled out with the engaging sheet 92 engaged with the nonwoven fabric.
  • the engagement sheet 92 is disposed on at least two of the folded surfaces that overlap each other. Therefore, the length of the engagement sheet 92 with respect to the entire length of the fastening tape 90 can be increased as compared with the case where the engagement sheet 92 is disposed on only one of the folded surfaces that overlap each other. Thereby, the fastening force of the fastening tape 90 can be increased without making the fastening tape 90 longer.
  • the fastening tape 90 is provided outside the width direction W of the rear waistline region 30.
  • the fastening tape 90 is folded along the first fold line 95 inside the width direction W orthogonal to the longitudinal direction L from the front waist area 20 to the rear waist area 30, and from the first fold line 95. Is also folded outward in the width direction W along the second fold line 96 positioned outside in the width direction W. Furthermore, the free end 93 of the fastening tape 90 extends outward in the width direction W.
  • a disposable diaper having a fastening tape folded so that the free end of the fastening tape faces inward in the width direction is known.
  • the infant is placed on the disposable diaper with the disposable diaper laid on the floor.
  • the free end of the fastening tape may be hidden under the infant's body. This may make it difficult to pull out the fastening tape.
  • the developed fastening tape tends to return toward the inner side in the width direction by folding. As a result, the fastening tape and the engaging surface of the fastening tape may contact an infant placed on the disposable diaper. In this case, the fastening tape gives a stimulus to the infant.
  • the free end 93 of the fastening tape 90 extends outward in the width direction W. Therefore, even if the infant is placed on the disposable diaper 10 on the place where the absorbent body is disposed, the free end 93 of the fastening tape 90 is disposed on the outer side in the width direction W than the infant's body. Thereby, the fastening tape 90 can be pulled out easily. Even when the fastening tape 90 is pulled out and unfolded, the first fold line 95 has a crease on the outside in the width direction W. Therefore, since the fastening tape 90 does not move inward in the width direction W so as to come into contact with the infant placed on the disposable diaper 10, the possibility that the fastening tape 90 may irritate the infant is reduced.
  • the front waistline region 20 or the back waistline region 30 has a housing portion 72 that houses at least a region of the fastening tape 90 in a folded state where the engagement sheet 92 exists.
  • the engagement sheet 92 that the user feels most uncomfortable visually and tactilely is accommodated in the accommodating portion 72. Therefore, user discomfort can be further reduced.
  • the fastening tape 90 that is easily recognized visually and tactilely as a foreign object is accommodated in the accommodating portion 72 except for the free end portion 93, the user's discomfort can be further reduced.
  • the accommodating portion 72 is formed by a space between the skin surface side sheet and the clothing side sheet forming the front waistline region 20 or the back waistline region 30.
  • the fastening tape 90 is sandwiched between the skin surface side sheet and the clothing side sheet, and is fixed to one of the skin surface side sheet and the clothing side sheet.
  • the fastening tape 90 is accommodated in the accommodating part 72 which consists of a pair of sheet
  • fastening tape 90 is accommodated in the accommodating portion 72, when the infant is placed on the disposable diaper, the possibility that the fastening tape 90 is unfolded due to contact with the infant's skin is reduced. Further, in the present embodiment, when the disposable diaper is attached to the infant, the user continues to extend the fastening tape 90 from the operation of pulling out the free end of the fastening tape 90, and extends the front waistline region 20 or the back waistline region 30. Fastening tape 90 can be fastened. That is, in this embodiment, the disposable diaper can be attached to the infant in two steps: a step of placing the disposable diaper under the infant and a step of attaching the disposable diaper while pulling the fastening tape 90.
  • a disposable diaper in which the free end of the fastening tape 90 is folded inward in the width direction (hereinafter referred to as a comparative example)
  • the fastening tape is deployed, Lay the disposable diaper under the infant, taking care not to stick to the diaper body again. Then, the operation
  • the fastening tape 90 is fixed to a sheet on the skin surface side of the pair of sheets forming the accommodating portion 72, and is folded to the opposite side to the sheet on the skin surface side. According to this configuration, the engagement surface of the engagement sheet 92 is directed to the skin surface side in a state where the fastening tape 90 is deployed. Accordingly, the fastening tape 90 provided in the rear waistline region 30 can be engaged with the front waistline region 20.
  • the free end 93 of the fastening tape 90 is colored differently from the skin-side sheet and the clothing-side sheet that form the housing 72. Since the free end portion 93 protruding from the storage portion 72 has a color different from that of the sheet forming the storage portion 72, the free end portion 93 gripped by the user can be conspicuous. Thereby, the use by a user can be supported intuitively.
  • the fastening tape 90 is provided on the outer side in the width direction W of the front waistline region 20 or the back waistline region 30, and when the fastening tape 90 is folded, the free end of the fastening tape 90 is provided.
  • the outer shape 93a of the portion 93 is formed so as to be continuously connected to the outer shape in the width direction W of the front waistline region 20 or the back waistline region 30.
  • the engagement sheet 92 is not provided on the fold lines 95 and / or 96 where the fastening tape 90 is bent. This makes it easy to fold the fastening tape 90 along the fold lines 95 and / or 96.
  • the engagement sheet 92 is generally more rigid than the base material 91 of the fastening tape 90. Therefore, the fastening tape 90 can be easily folded by preventing the engagement sheet 92 from being formed on the folding lines 95 and / or 96.
  • a pair of fastening tapes 90 are provided on both outer sides in the width direction W of the rear waistline region 30.
  • the rear waistline region 30 has a waist circumference stretchable portion 85 that stretches in the width direction between the pair of fastening tapes 90.
  • the waist elastic region 85 in the rear waistline region 30 extends, so that the fastening tape can be easily pulled out between the infant's body and the floor. Thereby, the wearability when the disposable diaper 10 is worn on an infant is improved. Further, since the waist stretchable portion 85 contracts at the moment when the fastening tape 90 is deployed, the impact during deployment is mitigated.
  • the engagement sheet 92 has a large number of engagement hooks 99, and the diameter D of the engagement hooks 99 is smaller than the interval I between the engagement hooks 99. Accordingly, it is considered that the engagement hook 99 enters the gap between the engagement hooks 99 facing each other in a state where the fastening tape 90 is folded. When the free end 93 of the fastening tape 90 is pulled in this state, a sound is generated when the engagement hooks 99 are disengaged. This sound is more comfortable for the user and is expected to improve the user's willingness to purchase. Also, the user can more easily grasp the development of the fastening tape 90 by the generation of sound without visual confirmation. Further, the feeling when pulling out the fastening tape 90 can be made remarkable.
  • the fastening tape 90 includes a base material 91 made of a non-woven fabric and an engagement sheet 92 provided on the base material 91. Since the portions other than the engagement sheet 92 of the fastening tape 90 are made of non-woven fabric, it is possible to reduce the recognition that the fastening tape 90 is a foreign object to the user. Thereby, the discomfort with respect to a user can be reduced more.
  • the engagement sheet 92 is prevented from engaging with the nonwoven fabric forming the base material 91 of the fastening tape 90.
  • the engagement force between the engagement sheet 92 and the nonwoven fabric is strong, and the fastening tape 90 is difficult to pull out.
  • the engagement sheet 92 does not engage with the nonwoven fabric, so that it is possible to suppress a decrease in drawability of the fastening tape 90.
  • FIG. 9 is a cross-sectional view of a fastening tape in a folded state according to a modification.
  • FIG. 10 is a cross-sectional view of a fastening tape in a developed state according to a modification. 9 and 10, the same reference numerals are given to the same configurations as those in the above embodiment. Hereinafter, the description of the same configuration as the above embodiment may be omitted.
  • the fastening tape 90 is folded so as to be unfoldable before use. As shown in FIGS. 9 and 10, the fastening tape 90 is preferably folded in three. The fastening tape 90 is folded along the first fold line 95 inside the width direction W perpendicular to the longitudinal direction L from the front waistline region 20 to the back waistline region 30, and along the second fold line 96. And is folded outside in the width direction W (see FIGS. 9 and 10).
  • the second fold line 96 is positioned outside the first fold line 95 in the width direction W in a state where the fastening tape 90 is unfolded (see FIG. 6).
  • the first fold line 95 and the second fold line 96 are formed along the longitudinal direction L of the disposable diaper 10.
  • the free end portion 93 of the fastening tape 90 extends outward in the width direction W in a state where the fastening tape is folded.
  • the engagement sheet 92 is disposed on two of the surfaces that are folded and overlapped with each other.
  • the engagement sheet 92 is disposed on the fixed end 94 side of the first fold line 95 and between the first fold line 95 and the second fold line 96.
  • the engagement sheets 92 face each other without protruding from each other.
  • the engagement sheet 92 disposed closer to the fixed end portion 94 than the first fold line 95 remains in the storage portion 72. Even in this case, the engagement sheet 92 disposed between the first fold line 95 and the second fold line 96 is pulled out of the housing portion 72 (see FIG. 10). Therefore, the disposable diaper 10 can be fastened by the engagement sheet 92 drawn out from the housing portion 72.
  • an object of the present invention is to provide a disposable diaper that can reduce visual and / or tactile discomfort to the user due to the fastening tape.
  • Disposable diapers 20 ... Front waist area 25 ... Inseam area 30 ... Rest waist area 30a ... Outside waist area 40 ... Absorber 50 ... Top sheet 60 ... Exterior sheet 60a ... Back sheet 70 ... Side flap 72 ... Storage part 75 ... Leg stretchable part 80 ... Leg side stretchable part 85 ... Waist circumference stretchable part 851 ... 1st area 852 ... 2nd area 853 ... 3rd area 90 ... Fastening tape 900 ... Target part 91 ... Base material 92 ... Engagement Sheet 93 ... Free end 93a ... Free end profile 94 ... Fixed end 95 ... First fold line 96 ... Second fold line 97 ... Emboss 98 ... Emboss 99 ... Engagement hook L ... Longitudinal direction W ... Width Direction D ... Diameter of engagement hook I ... Distance between engagement hooks

Landscapes

  • 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)
PCT/JP2015/083665 2014-12-01 2015-11-30 使い捨ておむつ WO2016088728A1 (ja)

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JP6396193B2 (ja) * 2014-12-01 2018-09-26 ユニ・チャーム株式会社 使い捨ておむつ
JP7257101B2 (ja) * 2017-10-06 2023-04-13 ユニ・チャーム株式会社 使い捨ておむつ、及び使い捨ておむつの収容体
CN113230035B (zh) * 2021-03-29 2022-02-15 福建恒安集团有限公司 一种便于收纳的分割型拉拉裤及其制作方法
CN114305882A (zh) * 2022-01-14 2022-04-12 广东川田卫生用品有限公司 一种易穿脱经期卫生裤

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JP2009061157A (ja) * 2007-09-07 2009-03-26 Daio Paper Corp 止着式使い捨ておむつ
JP2010220872A (ja) * 2009-03-24 2010-10-07 Livedo Corporation 止着テープおよびこの止着テープを備えた使い捨ておむつ
JP2013198693A (ja) * 2012-03-26 2013-10-03 Oji Holdings Corp テープ型おむつ及びテープ型おむつの製造方法

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CN111388205B (zh) 2022-04-08
CN106999316A (zh) 2017-08-01
JP6396193B2 (ja) 2018-09-26
JP2016106642A (ja) 2016-06-20
CN106999316B (zh) 2020-06-23
CN111388205A (zh) 2020-07-10

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