WO2017175291A1 - 吸収性物品 - Google Patents

吸収性物品 Download PDF

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Publication number
WO2017175291A1
WO2017175291A1 PCT/JP2016/061072 JP2016061072W WO2017175291A1 WO 2017175291 A1 WO2017175291 A1 WO 2017175291A1 JP 2016061072 W JP2016061072 W JP 2016061072W WO 2017175291 A1 WO2017175291 A1 WO 2017175291A1
Authority
WO
WIPO (PCT)
Prior art keywords
hole
elastic member
absorbent article
exterior member
lateral direction
Prior art date
Application number
PCT/JP2016/061072
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
麻穂 植田
邦彦 桂川
紀子 長▲瀬▼
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 JP2017568304A priority Critical patent/JP6337222B2/ja
Priority to PCT/JP2016/061072 priority patent/WO2017175291A1/ja
Priority to CN201690001641.1U priority patent/CN209751399U/zh
Publication of WO2017175291A1 publication Critical patent/WO2017175291A1/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 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
    • A61F13/51—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 outer layers
    • A61F13/514—Backsheet, i.e. the impermeable cover or layer furthest from the skin

Definitions

  • the present invention relates to an absorbent article.
  • the pants-type disposable diaper 1 has an exterior body 3 and an absorbent main body 2, and the exterior body 3 is provided with a plurality of holes 5 penetrating in the thickness direction. .
  • the air permeability of the absorbent article can be improved.
  • the exterior body 3 is formed with a plurality of ridges along the vertical direction due to the contraction of the elastic member 33 along the lateral direction, and a plurality of ridges are also formed around the hole 5.
  • the disposable diaper 1 shown in Document 1 since the shape of the plurality of holes 5 and the pattern of the ridges formed around the holes 5 are uniform, the disposable diaper 1 is easy to expand and contract in the lateral direction but difficult to expand and contract in the oblique direction, etc. When the diaper 1 is worn, it is difficult to follow the movement of the wearer, and there is a possibility that sufficient fit cannot be obtained.
  • the present invention has been made in view of the above problems, and an object of the present invention is to provide an absorbent article having good fit while improving air permeability.
  • the main invention for achieving the above object is: A ventral side portion provided on the wearer's ventral side, a back side portion provided on the wearer's dorsal side, the ventral side portion, and the dorsal side portion, each having a vertical direction and a lateral direction orthogonal to each other. It is an absorbent article provided with at least one of the elastic members along the lateral direction, and has a through-hole penetrating from the skin side to the non-skin side.
  • the through-hole is Overlapping with the elastic member, in the lateral direction, the elastic member is discontinuous in the through hole, and in the longitudinal direction, the position of the elastic member at one end of the through hole in the lateral direction;
  • the absorbent article is characterized in that the position of the elastic member at the other end in the lateral direction of the through hole is different.
  • FIG. 1 is an outline perspective view of diaper 1 as an example of an absorptive article of this embodiment.
  • FIG. 2 is a plan view of the expanded diaper 1 as viewed from the skin side.
  • FIG. 3 is a diagram illustrating the AA cross section of FIG.
  • FIG. 4A is a diagram showing a part of the belt-like ventral exterior member 300 in an elongated state before the slit S (through hole 50) is formed.
  • FIG. 4B is a view showing a part of the belt-like ventral exterior member 300 in an elongated state when the slit S (through hole 50) is formed.
  • FIG. 4C is a diagram illustrating a part of the ventral-side exterior member 30 in the wearing state.
  • 5C are diagrams for explaining how the through holes 50 are formed when the slits S are formed obliquely. It is the figure expanded and shown about the part B of FIG. It is a figure explaining the through-hole 50a. It is the top view which looked at the diaper 100 of other embodiment from the skin side.
  • the through-hole is Overlapping with the elastic member, in the lateral direction, the elastic member is discontinuous in the through hole, and in the longitudinal direction, the position of the elastic member at one end of the through hole in the lateral direction;
  • the absorbent article wherein the position of the elastic member at the other end in the lateral direction of the through hole is different.
  • an absorbent article sufficient air permeability can be ensured by providing the through hole. And when the position of the elastic member arrange
  • Such an absorbent article has a first through hole and a second through hole, the position of the elastic member at one end in the lateral direction of the first through hole, and the lateral direction of the first through hole.
  • the distance in the longitudinal direction between the position of the elastic member at the other end, the position of the elastic member at the one end in the lateral direction of the second through hole, and the other end in the lateral direction of the second through hole It is desirable that the distance in the longitudinal direction between the elastic member and the position of the elastic member is different.
  • the shape of the ridge formed around the through hole and the direction of the tension acting by the elastic member are different between the first through hole and the second through hole. It is possible to change the base point and feel of the bend around the. Thereby, the fitting property of an absorbent article can be freely adjusted now according to the position in which a through-hole is provided.
  • the lateral width of the first through hole is different from the lateral width of the second through hole.
  • the through hole having a different shape is formed for each region of the abdominal exterior member (backside exterior member), the design and aesthetics of the absorbent article can be enhanced.
  • the opening area of the first through hole is different from the opening area of the second through hole.
  • a large opening area and a small opening area are provided for each region of the abdominal exterior member (backside exterior member).
  • the ventilation performance of the through hole can be adjusted. Thereby, the discomfort due to wearing of the absorbent article can be made difficult to occur.
  • the length of the outer edge of the first through hole is equal to the length of the outer edge of the second through hole.
  • Such an absorbent article includes an absorbent main body, one end of the absorbent main body is overlapped and joined to the abdominal side, and the other end is connected to the back side. It is preferable that the position of the inner end in the horizontal direction of the through hole is lower than the position of the outer end in the horizontal direction of the through hole in the vertical direction.
  • the elastic member provided on both sides of the through-hole is inclined, and a contracting force acting obliquely upward from the wearer's crotch side is developed.
  • the absorbent main body is pulled up to the upper side in the vertical direction while being widened outward in the lateral direction, and the absorbent main body easily fits the body when the absorbent article is worn.
  • Such an absorbent article includes an absorbent main body, one end of the absorbent main body is overlapped and joined to the abdominal side, and the other end is connected to the back side.
  • the position of the elastic member at one end in the lateral direction of the through hole provided below the end in the longitudinal direction of the absorbent main body and the other end in the lateral direction of the through hole The distance in the longitudinal direction between the elastic member and the position of the elastic member is the position of the elastic member at one end in the lateral direction of the through hole provided above the longitudinal end of the absorbent main body, It is desirable that it is longer than the distance in the vertical direction between the elastic member at the other end in the horizontal direction of the through hole.
  • the vertical interval between the elastic members becomes wide, and the abdominal exterior member ( Since the back-side exterior member is easily bent and deformed in the vertical direction, the fit at the time of wearing can be improved. Further, by shifting the vertical position of the elastic member, it is easy to suppress the occurrence of warping along the elastic member.
  • the distance in the longitudinal direction between the position of the elastic member at one end in the lateral direction of the through hole and the position of the elastic member at the other end in the lateral direction of the through hole Is preferably smaller than the minimum distance in the longitudinal direction between the two elastic members adjacent in the longitudinal direction.
  • both ends in the lateral direction of the through hole are pulled outward in the lateral direction by the elastic member, so that the through hole has a beautiful rhombus shape.
  • the air permeability of the through hole is easily ensured, and the beautiful rhombus is arranged on the surface of the abdominal exterior member (rear exterior member), thereby improving the aesthetics of the absorbent article.
  • a plurality of vertical ridges along the longitudinal direction are formed on the ventral-side exterior member (back-side exterior member). Vertical folds are divided at the top and bottom, making it difficult to form large folds. Thereby, the trace of a wrinkle becomes easy to attach to skin at the time of wear of an absorptive article.
  • a plurality of fine vertical hooks are formed side by side in the horizontal direction, and the vertical hooks serve as a base point for bending in the horizontal direction, and the absorbent article easily deforms following the movement of the wearer's body. Thereby, the fitting property of an absorbent article can be improved.
  • the shape of the through hole is asymmetric with respect to at least one of the horizontal direction and the vertical direction.
  • each through hole is easily noticeable, and the visibility is improved.
  • the user can grasp at a glance that the through-hole (vent hole) is provided in the abdominal exterior member (back side exterior member) and wear the absorbent article with confidence. To be able to wear it.
  • FIG. 1 is an outline perspective view of diaper 1 as an example of an absorptive article of this embodiment.
  • FIG. 2 is a plan view of the expanded diaper 1 as viewed from the skin side.
  • FIG. 3 is a diagram illustrating the AA cross section of FIG.
  • the diaper 1 in the state of FIG. 1 includes a “vertical direction”, a “lateral direction” that intersects the longitudinal direction, and a “thickness direction” that intersects the longitudinal direction and the lateral direction.
  • the longitudinal direction of the diaper 1 in the state of FIG. 2 is referred to as “longitudinal direction”, and one end and the other end in the longitudinal direction of the diaper 1 are respectively referred to as “upper end”.
  • C10 is also referred to as “lower end”.
  • the side in contact with the wearer is referred to as “skin side” and the opposite side is referred to as “non-skin side”.
  • the “extended state” refers to a state in which the diaper 1 is extended until wrinkles disappear. Specifically, the members (for example, the abdominal side exterior member 30 and the back side exterior member 40) of the diaper 1 are used. It means a state in which the dimensions are extended until the dimension is equal to or close to the dimension of the single member.
  • a disposable diaper 1 according to the present embodiment (hereinafter referred to as “diaper 1”) is a so-called three-piece type pants-type diaper mainly intended for wearing infants, and has an absorptivity disposed between the wearer's crotch. It has a main body 10, an abdominal exterior member (abdominal side part) 30 that covers the wearer's abdominal side part, and a back side exterior member (back side part) 40.
  • the absorbent main body 10 extends from the abdominal exterior member 30 to the back exterior member 40 such that each end in the longitudinal direction overlaps the abdominal exterior member 30 and the back exterior member 40. And are bonded and fixed to the ventral exterior member 30 and the back exterior member 40 from the skin side by an adhesive or the like.
  • the external shape is substantially H-shaped in plan view. Then, it is folded in half with the substantially central portion C10 in the longitudinal direction as a folding position, and the abdominal exterior member side edge 30se, which is the lateral ends of the abdominal exterior member 30 and the back exterior member 40 facing each other, If it joins and connects in the back side exterior member side edge 40se, it will become the diaper 1 (FIG. 1) in which the trunk periphery opening 1HB and a pair of leg periphery opening 1HL were formed.
  • the absorptive main body 10 is not overlapped in the region of the upper end portion 30e in the vertical direction of the abdominal exterior member 30, and the absorbent main body 10 is located in the central portion 30c in the vertical direction with respect to the end portion 30e.
  • the absorptive main body 10 is piled up in the center part of the horizontal direction among the abdominal side exterior members 30, and the absorptive main body 10 is located in the area
  • FIG. Are not superimposed.
  • the absorbent main body 10 is not overlapped in the region of the upper end portion 40e in the vertical direction, and is absorbed by the portion 40c on the central side in the vertical direction from the end portion 40e.
  • the sex body is superimposed.
  • the absorptive main body 10 is piled up in the center part of the horizontal direction among the back side exterior members 40, and the absorptive main body 10 is in the area
  • the absorptive main body 10 is equipped with the absorber 11, the surface sheet member 13 which covers the absorber 11 from the skin side, and the back surface sheet member 15 which covers the absorber 11 from the non-skin side.
  • the top sheet member 13 is a liquid-permeable sheet member such as a nonwoven fabric.
  • the back sheet member 15 is a sheet member composed of two layers of a liquid-impermeable leak-proof sheet 15a such as polyethylene and a liquid-permeable exterior sheet 15b such as a nonwoven fabric. Further, a three-dimensional gather or a leg-around gather may be formed by the exterior sheet 15b or the like (not shown).
  • the absorbent body 11 is an absorbent core formed by laminating liquid absorbent materials, and can absorb excrement such as urine.
  • the absorbent body 11 can use liquid absorbent fibers such as pulp fibers, absorbent polymer (SAP), or the like, and has a substantially hourglass shape in plan view in this embodiment (FIG. 2).
  • the absorber 11 may be coat
  • the ventral side exterior member 30 and the back side exterior member 40 are both substantially rectangular sheet members in plan view made of a flexible material such as a nonwoven fabric.
  • the abdominal exterior member 30 has a skin side sheet 31 and a non-skin side sheet 32 stacked in order from the skin side in the thickness direction, and the back side exterior member 40 is joined in the thickness direction.
  • the skin side sheet 41 and the non-skin side sheet 42 are overlapped and joined in order from the skin side.
  • the upper part of the abdominal exterior member 30 is configured so that the non-skin side sheet 32 starts from the abdominal upper end 30et which is the upper end of the abdominal exterior member 30 in order to improve touch and durability.
  • the folded portion 32f is formed by folding downward on the skin side.
  • the upper part of the backside exterior member 40 is also folded back downward on the skin side from the backside upper end 40et, which is the upper end of the backside exterior member 40, to form a folded portion 42f. Has been.
  • the abdominal exterior member 30 includes a sheet member 34 disposed so as to cover the lower end portion of the folded portion 32f and the upper end portion of the absorptive main body 10 from the skin side.
  • the back-side exterior member 40 includes a sheet member 44 that is arranged so as to cover the upper end portion on the back side of the absorbent main body 10 from the skin side from the lower side of the folded portion 42f.
  • the sheet members 34 and 44 are rectangular sheet members made of a nonwoven fabric or the like, which are different from the ventral exterior member 30 and the back exterior member 40.
  • ventral side exterior member 30 and the back side exterior member 40 have a predetermined length in the vertical direction, and a through-hole 50 that penetrates each exterior member 30, 40 from the skin side to the non-skin side is provided vertically.
  • a plurality are provided at predetermined intervals in the direction and the horizontal direction. Details of the through hole 50 will be described later.
  • a plurality of elastic members 35, 35 are arranged side by side with a space in the vertical direction.
  • a plurality of elastic members 45, 45... is bonded and fixed to the skin-side sheet 41 and the non-skin-side sheet 42 with an adhesive while being stretched in the lateral direction.
  • the plurality of elastic members 45, 45... Are arranged side by side with a space in the vertical direction.
  • the elastic members 35 and 45 provide lateral stretchability to the abdominal exterior member 30 and the back exterior member 40, and form a plurality of ridges on the abdominal exterior member 30 and the back exterior member 40. . Many of the wrinkles formed on the ventral-side exterior member 30 and the back-side exterior member 40 have a shape along the vertical direction. The shape of the bag will be described later.
  • the region overlapping with the absorber 11 near the central portion in the lateral direction is discontinuous so that the stretching force does not act. Thereby, the shrinkage
  • Side elastic members 35 s and 45 s are provided in the laterally outer region from the absorber 11.
  • the plurality of elastic members 35 are provided on the upper side of the upper elastic member 35t located on the uppermost side and the upper elastic member 35t, and from the side edge portion 30se on the other side to the ventral side exterior member side edge 30se in the lateral direction.
  • a lowermost elastic member 35u provided at a position farthest below the member 35s.
  • the plurality of elastic members 45 are provided on the uppermost upper elastic member 45t and on the lower side of the upper elastic member 45t, and from the back side exterior member side edge 40se on the one side in the lateral direction to the other side.
  • a lowermost elastic member 45u provided at a position farthest from the lower elastic member 45s.
  • the through hole 50 of the ventral-side exterior member 30 is formed in the manufacturing process of the ventral-side exterior member 30 in the manufacture of the diaper 1.
  • the ventral-side exterior member 30 is a band-shaped ventral-side exterior member 300 in which a strip-shaped skin-side sheet 310, an elastic member 350, and a strip-shaped non-skin-side sheet (not shown) are arranged in order from the skin side. It is formed separately.
  • FIG. 4A is a view showing a part of the belt-shaped ventral-side exterior member 300 in an elongated state before the slit S (through hole 50) is formed.
  • FIG. 4B is a view showing a part of the belt-like ventral exterior member 300 in an elongated state when the slit S (through hole 50) is formed.
  • FIG. 4C is a diagram illustrating a part of the ventral-side exterior member 30 in the wearing state. 4A, 4B, and 4C are views seen from the skin side, respectively.
  • FIG. 4A shows a state in which the band-shaped ventral-side exterior member 300 before the slit S is formed is stretched until the band-shaped skin-side sheet 310 and the band-shaped non-skin-side sheet are almost free from wrinkles.
  • a linear slit S having a vertical component is formed in the elongated strip-shaped ventral-side exterior member 300 so as to cross a part of the elastic members 350.
  • the slit S is formed by cutting the strip-shaped skin side sheet 310, the elastic member 350, and the strip-shaped non-skin side sheet.
  • a predetermined cutter including a non-contact type cutter such as a laser cutter
  • FIG. 4B shows the moment when the slit S (cut) is formed.
  • the formed slit S then becomes a through hole 50 as shown in FIG. 4C by the elastic member 350.
  • the slit S is a linear slit, and unlike the case where a shape having a predetermined area is cut out, chips are hardly generated.
  • 4B shows an example in which the slit S is formed along the vertical direction for the sake of simplification, but in the diaper 1 of the present embodiment, the slit S is predetermined in the vertical direction (or the horizontal direction). May be formed at an angle of
  • FIG. 4C shows a part of the ventral-side exterior member 30 in a state where the wearer wears the diaper 1.
  • the outline of the through-hole 50 of the abdomen-side exterior member 30 in the worn state is opened on both sides in the lateral direction, and the shape of the through-hole 50 is substantially rhombus. This is because, as shown in FIG. 4C, the elastic member 35 contracts, so that the periphery of the through hole 50 is pulled in the lateral direction.
  • the through-hole 50 opens more largely in a wearing condition, the air permeability of the diaper 1 can be improved more. By making one through hole 50 larger, the air permeability of the diaper 1 can be ensured with a smaller number of through holes 50.
  • the through-hole 50 can be opened in the lateral direction by the elastic member 35 in a contracted state even before being worn, it is possible to provide an appearance to a guardian who wears the diaper 1 on a wearer such as an infant.
  • the through-hole 50 can be visually recognized, and the improvement of the air permeability can be recognized.
  • the contracted elastic member 35 pulls the nonwoven fabric around the through hole 50, so that a plurality of wrinkles along the outline of the through hole 50 are formed around the through hole 50.
  • the touch of the diaper 1 can be made softer.
  • the through hole is formed by cutting out a predetermined range, the periphery of the through hole is opened in a substantially flat state, whereas in the present embodiment, the through hole 50 is formed by a linear slit S. Therefore, the non-woven fabric pulled by the opening swells around the through hole 50 to form a plurality of wrinkles. Therefore, the touch of the diaper 1 can be further improved.
  • the through hole 50 of the backside exterior member 40 is formed in the same manner as the through hole 50 of the abdominal side exterior member 30.
  • the abdominal exterior member 30 and the back exterior member 40 may be integrally formed, and after the through hole 50 is formed, the abdominal exterior member 30 and the back exterior member 40 may be separated.
  • the slit S may be formed after the absorbent main body 10 and the sheet member 34 are stacked on the abdominal exterior member 30, or after the slit S is formed in the abdominal exterior member 30.
  • the sheet member 34 may be stacked.
  • the slit S may be formed after the absorbent main body 10 and the sheet member 44 are stacked on the backside exterior member 40, or the absorbent main body 10 and the sheet are formed after the slit S is formed on the backside exterior member 40.
  • the member 44 may be stacked.
  • ⁇ Details of through hole 50> the detail of a structure of the through-hole 50 actually formed with the diaper 1 of this embodiment is demonstrated.
  • a plurality of through holes 50 of the ventral-side exterior member 30 are provided in a region of the ventral-side exterior member 30 where the folded portion 32f, the sheet member 34, and the absorbent main body 10 are not provided.
  • the vertical direction is a region below the end 30 e and below the lower end of the sheet member 34
  • the horizontal direction is provided outside the absorbent main body 10.
  • the one side and the other side in the lateral direction of the ventral-side exterior member 30 are arranged symmetrically with respect to the lateral center AA.
  • the diaper 1 At least a part of the plurality of slits S formed is inclined at a predetermined angle with respect to the vertical direction, whereby the shape of the through hole 50 and the arrangement of the elastic member 35 are shown in FIGS. Different from the case described in 4C.
  • FIG. 5A to FIG. 5C are diagrams for explaining how the through holes 50 are formed when the slits S are formed obliquely.
  • 5A to 5C illustrate a case where the slit S is formed to be inclined to the right with respect to the vertical direction.
  • the belt-like ventral exterior member 300 in a state of being stretched in the lateral direction until almost no wrinkles disappears by a predetermined angle ⁇ with respect to the longitudinal direction so as to cross some elastic members 350. Tilt to form a linear slit S.
  • the slit S is formed so that the center position C of the slit S crosses the elastic member 350. That is, the elastic member 350 is cut at an intermediate position between the upper end et (upper end of the through hole 50) and the lower end eb (lower end of the through hole 50) of the slit S.
  • the slit S When the slit S is formed obliquely, the slit S is opened on both sides in the lateral direction as shown in FIG. 5B by the contraction force of the elastic member 350 cut at the center position C, so that a substantially diamond-shaped through hole 50 is formed.
  • the lateral right end er of the through-hole 50 (hereinafter also simply referred to as the right end er) is located below the center position C in the vertical direction. This is because the length of each side of the rhombus in the through hole 50 is equal. In other words, in the outline of the through hole 50, the length between the upper end et and the right end er is equal to the length between the lower end eb and the right end er.
  • the upper end et, the right end er, and the lower end eb form an isosceles triangle having the right end er as the apex, so that the position of the right end er is lower than the center position C in the vertical direction according to the inclination of the slit S. become. Then, as the position of the right end er is shifted below the center position C, the position of the cut end of the elastic member 350 (that is, the end on the through hole 50 side) is also centered in the vertical direction as shown in FIG. 5B. It shifts below the position C.
  • the left end el in the horizontal direction of the through hole 50 (hereinafter, also simply referred to as the left end el) is located above the center position C in the vertical direction. Then, as the position of the left end el shifts upward from the center position C, the position of the cut end (end on the through hole 50 side) of the elastic member 350 is also from the center position C in the vertical direction as shown in FIG. 5B. Is also shifted upward.
  • FIG. 5C shows a part of the ventral-side exterior member 30 in a state where the wearer wears the diaper 1.
  • the through-hole 50 of the abdomen-side exterior member 30 in a worn state opens more greatly than the case of FIG. 5B when the left end el and the right end er are pulled to both sides in the lateral direction, and the rhombus is inclined obliquely as shown in FIG. 5C. It becomes. In the wearing state, since the through-hole 50 opens larger, the air permeability of the diaper 1 can be further improved.
  • the elastic member 350 is also extended in the horizontal direction, and the position of the elastic member 350 disposed on the left side of the through hole 50 and the elastic member disposed on the right side. The position 350 is shifted in the vertical direction as shown in FIG. 5C.
  • the plurality of through holes 50 are arranged in a staggered manner in the belt-like ventral exterior member 300 (strip-shaped backside exterior member 400).
  • 6 is an enlarged view of a portion B in FIG. In FIG. 6, the through-hole 50a (first through-hole), the through-hole 50b (second through-hole) located on the upper left side of the through-hole 50a, and the lower-left side of the through-hole 50a are located.
  • the through hole 50c and the (third through hole) that overlap with the through hole 50a in the lateral direction, the through hole 50d (the fourth through hole) located right next to the through hole 50a, and the right of the through hole 50a A through hole 50e (fifth through hole) positioned obliquely above, a through hole 50f and a (sixth through hole) positioned diagonally lower right of the through hole 50a are shown.
  • the elastic member 35a overlaps the through hole 50a and the through hole 50d in the vertical direction.
  • the elastic member 35b overlaps the through hole 50b and the through hole 50e in the vertical direction
  • the elastic member 35c overlaps the through hole 50c and the through hole 50c. It overlaps with the hole 50f in the vertical direction.
  • An elastic member 35h is provided between the through hole 50a and the through hole 50b
  • an elastic member 35i is provided between the through hole 50b and the through hole 50c.
  • each through hole 50 has a substantially rhombus shape inclined obliquely, and the inside of the through hole 50 penetrates to the non-skin side.
  • the substantially rhombic lateral vertex (the left end el and the right end er of the through-hole 50) and the cut end of the elastic member 35 are at substantially the same position in the vertical direction.
  • disconnected elastic member 35 is not provided inside each through-hole 50, and the cut
  • the elastic member 35a is continuous between the through hole 50a (first through hole) and the through hole 50d (fourth through hole), and is not continuous within the through hole 50a and the through hole 50d.
  • the elastic member 35h and the elastic member 35i do not overlap with any through hole 50 in the vertical direction, the elastic members 35h and 35i are not discontinuous by the through hole 50 (slit S).
  • each through-hole 50 is substantially the same size, and some through-holes have overlapped in the vertical direction.
  • the through hole 50e (fifth through hole) and the through hole 50f (sixth through hole) overlap in the lateral direction.
  • L1 is larger than L2 (L1> L2).
  • the length L3 in the vertical direction of the elastic member discontinuous by the through hole 50 and the elastic member adjacent to the discontinuous elastic member in the vertical direction and not discontinuous by the through hole 50 is: It is shorter than the length L2 of the through hole 50 (L3 ⁇ L2).
  • the distance L3 between the discontinuous elastic member 35c and the discontinuous elastic member 35i is smaller than the longitudinal length L2 of the through hole 50f.
  • At least a rectangular region (for example, a hatching display portion around the through hole 50c in FIG. 6) surrounded by a side g along the lateral direction circumscribing each through hole 50 and a side h along the vertical direction includes: Adhesive etc. are not provided.
  • the skin side sheet 31 and the non-skin side sheet 32 are joined by an adhesive applied to the elastic member 35.
  • the through-hole 50 of the diaper 1 of this embodiment can adjust the tension
  • the elastic member 35a and the elastic member 35h are elastic members of the same material, and before the slit S (through hole 50a and through hole 50d) is formed, the skin side sheet 31 and the non-skin side sheet 32 are stretched in the same stretched state. Bonded and fixed.
  • the elastic member 35a is cut by the slit S (the through hole 50a and the through hole 50d), and the elastic member 35h is not cut by any of the slits S.
  • the amount of tension in the horizontal direction of the elastic member 35h that is adjacent to the elastic member 35a in the vertical direction is Te, and the elastic member 35a is provided from the left side (inside in the horizontal direction) to the position overlapping the absorber 11 in the thickness direction.
  • the tension in the lateral direction of the elastic member 35a is Ta1
  • the tension Ta1 is smaller than the tension Te (Ta1 ⁇ Te).
  • the magnitude of the lateral tension of the elastic member 35a located between the through hole 50d and the through hole 50a is Ta2
  • the tension Ta2 is smaller than the tension Te (Ta2 ⁇ Te)
  • the tension is smaller than Ta1 (Ta2 ⁇ Ta1).
  • the elastic member 35a is discontinuous by the through holes 50a, 50d, etc., when the force in the vertical direction and the horizontal direction is applied, the elastic member 35a is more than when the elastic member 35a is continuous. Can expand and contract freely.
  • the elastic member 35a on the left side of the through hole 50d and the elastic member 35a positioned between the through hole 50a and the through hole 50d can expand and contract more freely with respect to movement than when they are continuous. Therefore, it becomes easy to follow not only the movement in the horizontal direction but also the movement in the vertical direction. Thereby, the fitting property of the abdomen or the buttocks of the diaper 1 can be improved.
  • the tension of the elastic member 35 can be adjusted by providing the elastic member 35 cut by the slit S (through hole 50) and the elastic member 35 not cut by the slit S (through hole 50). Therefore, it is possible to reduce the risk of excessive tightening while securing tightening around the waist, and to improve the fit of the diaper 1.
  • FIG. 7 is a diagram illustrating the through hole 50a.
  • the through hole 50a is formed by the slit S inclined by a predetermined angle ⁇ with respect to the vertical direction.
  • the through hole 50 also has a rhombus shape inclined with respect to the vertical direction, and the position of the left end el of the through hole 50 and the right end er are different in the vertical direction.
  • the abdomen exterior member 30 (the dorsal exterior member 40) bends in the vertical direction with the position of the elastic member 35 disposed along the lateral direction as a base point. It deforms as follows. That is, the elastic member 35 becomes a bending base point in the longitudinal direction of the diaper 1. In the diaper 1, since the longitudinal position of the elastic member 35 is different on both lateral sides of the through hole 50, the bending base point in the longitudinal direction is changed from one place (when there is no longitudinal deviation) to two places (shifted in the longitudinal direction). If you can).
  • exterior exterior member 30 back
  • the diaper 1 follows a motion of a wearer's body, and is easy to deform
  • the longitudinal position of the elastic member 35 is different on both sides in the lateral direction of the through-hole 50, it is possible to prevent the trace of the elastic member extending linearly in the lateral direction from sticking to the wearer's skin. .
  • the position at which the tension Ta1 acts and the position at which the tension Ta2 act are different in the vertical direction, different forces act in the vertical direction and the horizontal direction of the through hole 50, and are formed around the through hole 50.
  • the shape of the ridge is asymmetrical in the vertical and horizontal directions. Therefore, the bulge (wrinkle) of the nonwoven fabric at the outer edge of the through hole 50 becomes irregular and large and long wrinkles are hardly formed. Thereby, it is suppressed that a local pressure acts on a wearer's skin at the time of wearing of the diaper 1, and a wrinkle trace is attached to a wearer's skin, and the touch can be improved more.
  • the inclination direction of the through-hole 50 is an outer side in the horizontal direction. Therefore, in the case of FIG. 7, in the vertical direction, the left end el (lateral inner end) of the through hole 50 is higher than the center position C of the through hole 50, and the right end el (lateral outer end) of the through hole 50. Becomes lower than the center position C. That is, the position of the elastic member 35 at the right end er of the through hole 50 is lower than the position of the elastic member 35 at the left end el of the through hole 50.
  • a predetermined inclination is also generated in the elastic member 35 overlapping the through hole 50 in the vertical direction.
  • the elastic member 35a is inclined obliquely upward from the right end er of the through hole 50a toward the left end el of the through hole 50d (see FIG. 6). Therefore, in the abdominal exterior member 30 (the back exterior member 40), the elastic member 35a causes the wearer's crotch side (inner side in the horizontal direction and lower side in the vertical direction) to be obliquely upper side (outer side in the horizontal direction and upper side in the vertical direction).
  • the contractile force acting on thus, the elastic member 35 that overlaps the through hole 50 in the longitudinal direction in the diaper 1 (that is, the elastic member 35 cut by the through hole 50) exerts a contracting force obliquely upward from the wearer's crotch side. .
  • the absorbent main body 10 is widened outward in the lateral direction and pulled upward in the vertical direction, so that the absorbent main body 10 can easily fit the body when the diaper 1 is worn.
  • the inclination ⁇ of the slits S need not be constant for all the slits S.
  • the inclination ⁇ of the slit S may be different between the through hole 50a (first through hole) and the through hole 50b (second through hole).
  • the vertical shift amount d50a between the left end el and the right end er of the through hole 50a is different from the vertical shift amount d50b between the left end el and the right end er of the through hole 50b. Therefore, the shape of the ridge formed around the through hole 50a is different from the shape of the ridge formed around the through hole 50d, and the direction of the tension acting by the elastic member 35a and the tension acting by the elastic member 35b are different.
  • the direction becomes different. Therefore, by changing the inclination angle ⁇ of the slit S for each region in the ventral-side exterior member 30 (back-side exterior member 40) and making the shift amount d50 different, the above-described bending base point and touch are changed. Can do. Thereby, according to the position in which the through-hole 50a is provided, the fitting property of the diaper 1 can be freely adjusted now.
  • the vertical shift amount d50 between the left end el and the right end er of the through hole 50 between the region above the upper end 11ta of the absorber 11 and the region below the upper end 11ta of the absorber 11 is To be different. Specifically, the shift amount d50 in the region below the upper end 11ta of the absorber 11 is set larger than the shift amount d50 in the region above the upper end 11ta of the absorber 11.
  • the abdominal side exterior member 30 (back side exterior member 40) becomes easy to deform
  • region around a leg becomes easy to deform
  • the wearer's leg moves so much that a part of the abdominal exterior member 30 (the back exterior member 40) rises along the elastic member 35 ( There is a risk of drowning.
  • by shifting the vertical position of the elastic member 35 at the through hole 50 it becomes easy to suppress the occurrence of warping along the elastic member 35, and in this respect, the fit can be improved. .
  • the vertical shift amount d50 between the left end el and the right end er of the through hole 50 is smaller than the minimum value of the distance between the two elastic members 35 adjacent in the vertical direction (that is, the vertical pitch of the elastic members 35).
  • the vertical shift amount d50a (d50) between the left end el and the right end er of the through hole 50a is smaller than the interval L3 between the elastic members 35h and 35a adjacent in the vertical direction (d50 ⁇ L3).
  • the ventral exterior member 30 ( The backside exterior member 40) may tear. Therefore, by setting a limit on the maximum value of the shift amount d50, the occurrence of such a problem is suppressed. Further, if the shift amount d50 is smaller than L3, the bent base point is formed so finely that the belly side exterior member 30 (the back side exterior member 40) easily deforms following the movement of the wearer's body. Become.
  • the position of the upper end et and the position of the lower end eb of the through-hole 50 are shifted by w50 (w50a in FIG. 7) in the lateral direction, thereby improving fit.
  • the elastic member 35 contracts in the horizontal direction, so that a plurality of vertical ridges along the vertical direction are formed on the ventral-side exterior member 30 (the back-side exterior member 40).
  • the vertical hook is easily formed on a straight line passing through the upper end et and the lower end eb in the vertical direction, and the ventral exterior member 30 ( Long and large wrinkles are easily formed from the upper end to the lower end of the backside exterior member 40).
  • the vertical hook is divided above and below the through hole 50, which is compared with the above case.
  • the through hole 50 (slit S) is formed to be inclined in the diaper 1
  • the lateral ends el and er of the through hole 50 and the cut end of the elastic member 35 cut by the slit S ( The end on the through-hole side) is at an overlapping position in the vertical direction.
  • the both ends el and er of the horizontal direction of the through-hole 50 are each pulled outward by the elastic member 35 in the horizontal direction, so that the through-hole 50 has an isosceles triangle whose apex is the left end el of the horizontal direction, and A beautiful rhombus shape is formed by combining isosceles triangles whose apex is the right end er in the horizontal direction.
  • the air permeability of the through hole 50 is easily ensured, and the appearance of the diaper 1 is improved by arranging beautiful rhombuses on the surface of the stomach side exterior member 30 (the back side exterior member 40).
  • the cut end of the elastic member 35 is located on the outer side in the lateral direction with respect to the lateral ends el and er of the through hole 50, and the cut end does not protrude into the through hole 50. That is, since the cut end of the elastic member 35 does not protrude inward from both ends of the through hole 50 in the lateral direction, it is suppressed that the cut end of the elastic member 35 is in direct contact with the wearer's skin when the diaper 1 is worn. The wearer is less likely to feel uncomfortable.
  • the lateral width of the through hole 50 in the lateral direction may be different for each through hole 50.
  • the distance between the left end el and the right end er in the lateral direction may be different between the through hole 50a (first through hole) and the through hole 50b (second through hole). If it does in this way, since the through-hole 50 from which a shape differs for every area
  • the opening area may be different for each through hole 50.
  • the through hole 50a (first through hole) and the through hole 50b (second through hole) may have different areas (that is, rhombus areas).
  • the ventilation performance of the through hole 50 can be adjusted. Thereby, generation
  • the lateral width and area of the through hole 50 may be adjusted by changing the inclination angle ⁇ of the slit S or changing the length of the slit S, or may be acted on by the elastic member 35. You may carry out by changing the magnitude
  • the through holes 50 are formed obliquely, and the opening widths and areas of the through holes 50 are different. Therefore, the through holes 50 are at least one of the horizontal direction and the vertical direction. Is asymmetrical shape. Thereby, the shape of each through-hole 50 becomes conspicuous and visibility improves. Therefore, the user can grasp at a glance that the through hole 50 (vent hole) is provided in the ventral-side exterior member 30 (back-side exterior member 40), and wear the diaper 1 with confidence. Can be worn by a person. Moreover, since the shape of the through-hole 50 is asymmetrical, the wrinkles formed around the through-hole 50 as described above are also asymmetrical, so that the touch when the diaper 1 is worn can be improved.
  • the length of the outer edge of the through hole 50 (the circumferential length of the through hole 50) is constant if the length of the slit S is constant. .
  • the distance between the upper end et and the left end el, the distance between the left end el and the lower end eb, and the lower end eb and the right end The total value of the distance between er and the distance between the right end er and the upper end et is constant. For example, in FIG.
  • the circumference of the outer edge of the first through hole 50a is equal to the circumference of the outer edge of the second through hole 50b. That is, in each through hole 50, the length of the portion where the material (for example, non-woven fabric) is cut is constant, and the strength around the through hole 50 is less likely to vary. Thereby, even when the ventral-side exterior member 30 (the back-side exterior member 40) is pulled in the horizontal direction or the vertical direction when the diaper 1 is worn, the specific region (around the specific through hole 50). It is difficult to cause problems such as being easily broken, and the diaper 1 as a whole can ensure strength.
  • the abdominal side exterior member 30 has the skin side sheet
  • the adhesive is not provided in a rectangular region that circumscribes at least the through-hole 50 and includes the side g along the horizontal direction and the side h along the vertical direction. As a result, in the rectangular region, it is possible to reduce the risk that the periphery of the through hole 50 becomes hard due to the solidification of the adhesive or the opening becomes insufficient. Moreover, since it is not solidified by the adhesive, an appropriate wrinkle can be formed around the through-hole 50 by the original softness of the material such as a non-woven fabric, and a soft touch can be achieved.
  • the through hole 50e and the through hole 50f in FIG. 6 are adjacent to each other in the vertical direction, and another elastic member is used between the through hole 50e and the through hole 50f in the vertical direction.
  • a certain elastic member 35h is provided. Therefore, even if elastic members 35b and 35c that are discontinuous by the through holes 50e and 50f are provided to reduce the tightening force, the elastic members 35b and 35c are adjacent to each other in the vertical direction. By providing the elastic member 35h that is not discontinuous by the hole 50, the tightening force of the diaper 1 can be ensured, and the fear that the diaper 1 will fall off when worn can be reduced.
  • the through hole 50e and the through hole 50f are at least partially overlapped in the horizontal direction, and the distance L1 between the through hole 50e and the through hole 50f in the vertical direction is the through hole 50e. And the length (L2) of each of the through holes 50f.
  • the through holes 50 are formed in the ventral exterior member 30 and the back exterior member 40, respectively, but the present invention is not limited thereto. What formed the through-hole 50 in either the abdominal side exterior member 30 or the back side exterior member 40 may be used. However, the air permeability of the diaper 1 can be further improved by forming the through holes 50 in both the abdominal exterior member 30 and the back exterior member 40.
  • the sheet members 34 and 44 are provided on the skin side of the abdominal exterior member 30 and the back exterior member 40, respectively, but the present invention is not limited thereto.
  • the sheet members 34 and 44 may be provided on either the stomach-side exterior member 30 or the back-side exterior member 40, or both may not be provided.
  • the distances between the elastic members 35 adjacent to each other in the vertical direction are substantially equal, but the present invention is not limited to this.
  • the elastic members 35 can be arranged at arbitrary intervals in the vertical direction, and may be arranged at different intervals.
  • FIG. 8 is a plan view of the diaper 100 of another embodiment as viewed from the skin side.
  • the through hole 50 may be provided only on the lower side (30c, 40c) that is more likely to sweat, or the through hole 50 may be disposed along the wearer's ridge.
  • dorsal exterior member 40 is good also as substantially the same.
  • the arrangement of the through holes 50 can be changed as appropriate.
  • the diaper 1 according to the above embodiment is intended for wearing infants, the present invention is not limited to this, and adults may also be intended for wearing.
  • a 3 piece type disposable diaper 1 was illustrated as an example of an absorbent article, it is not restricted to this at all.
  • a two-piece disposable diaper or tape having an exterior sheet having an abdominal part, a crotch part, and a dorsal part as a first part and an absorbent main body fixed to the skin side of the exterior sheet as a second part
  • a disposable disposable diaper may be used.

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  • Health & Medical Sciences (AREA)
  • Epidemiology (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Dermatology (AREA)
  • Absorbent Articles And Supports Therefor (AREA)
PCT/JP2016/061072 2016-04-05 2016-04-05 吸収性物品 WO2017175291A1 (ja)

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CN201690001641.1U CN209751399U (zh) 2016-04-05 2016-04-05 吸收性物品

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019093180A1 (ja) * 2017-11-07 2019-05-16 ユニ・チャーム株式会社 吸収性物品

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH069620U (ja) * 1992-07-10 1994-02-08 ユニ・チャーム株式会社 使い捨ておむつ
JP2002065731A (ja) * 2000-08-24 2002-03-05 Uni Charm Corp 使い捨ておむつ
JP2014004115A (ja) * 2012-06-22 2014-01-16 Kao Corp パンツ型着用物品およびその製造方法
JP2015107223A (ja) * 2013-12-04 2015-06-11 花王株式会社 パンツ型吸収性物品
JP2015192862A (ja) * 2014-03-25 2015-11-05 花王株式会社 吸収性物品

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH069620U (ja) * 1992-07-10 1994-02-08 ユニ・チャーム株式会社 使い捨ておむつ
JP2002065731A (ja) * 2000-08-24 2002-03-05 Uni Charm Corp 使い捨ておむつ
JP2014004115A (ja) * 2012-06-22 2014-01-16 Kao Corp パンツ型着用物品およびその製造方法
JP2015107223A (ja) * 2013-12-04 2015-06-11 花王株式会社 パンツ型吸収性物品
JP2015192862A (ja) * 2014-03-25 2015-11-05 花王株式会社 吸収性物品

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019093180A1 (ja) * 2017-11-07 2019-05-16 ユニ・チャーム株式会社 吸収性物品
JP2019084042A (ja) * 2017-11-07 2019-06-06 ユニ・チャーム株式会社 吸収性物品
CN111225643A (zh) * 2017-11-07 2020-06-02 尤妮佳股份有限公司 吸收性物品
JP7107662B2 (ja) 2017-11-07 2022-07-27 ユニ・チャーム株式会社 パンツ型おむつ
CN111225643B (zh) * 2017-11-07 2023-01-03 尤妮佳股份有限公司 吸收性物品

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