WO2014208781A2 - 吸収性物品 - Google Patents

吸収性物品 Download PDF

Info

Publication number
WO2014208781A2
WO2014208781A2 PCT/JP2014/075867 JP2014075867W WO2014208781A2 WO 2014208781 A2 WO2014208781 A2 WO 2014208781A2 JP 2014075867 W JP2014075867 W JP 2014075867W WO 2014208781 A2 WO2014208781 A2 WO 2014208781A2
Authority
WO
WIPO (PCT)
Prior art keywords
absorbent
band
elastic member
ventral
absorbent article
Prior art date
Application number
PCT/JP2014/075867
Other languages
English (en)
French (fr)
Japanese (ja)
Other versions
WO2014208781A3 (ja
Inventor
京太 齋藤
サリニー フィチェットキットジャワット
ナッタカーン ブンロッド
ジラパ チャンチャルーン
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 CN201480054453.0A priority Critical patent/CN105636563B/zh
Publication of WO2014208781A2 publication Critical patent/WO2014208781A2/ja
Publication of WO2014208781A3 publication Critical patent/WO2014208781A3/ja

Links

Images

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/45—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape
    • A61F13/49—Absorbent articles specially adapted to be worn around the waist, e.g. diapers
    • A61F13/49058—Absorbent articles specially adapted to be worn around the waist, e.g. diapers characterised by the modular concept of constructing the diaper
    • A61F13/4906—Absorbent articles specially adapted to be worn around the waist, e.g. diapers characterised by the modular concept of constructing the diaper the diaper having an outer chassis forming the diaper and an independent absorbent structure attached to the chassis
    • A61F13/49061—Absorbent articles specially adapted to be worn around the waist, e.g. diapers characterised by the modular concept of constructing the diaper the diaper having an outer chassis forming the diaper and an independent absorbent structure attached to the chassis the diaper having one or two waist members forming the diaper waist region and an independent absorbent structure attached to the one or two waist members forming the crotch region
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/45—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape
    • A61F13/49—Absorbent articles specially adapted to be worn around the waist, e.g. diapers
    • A61F13/49007—Form-fitting, self-adjusting disposable diapers
    • A61F13/49009—Form-fitting, self-adjusting disposable diapers with elastic means
    • A61F13/49011—Form-fitting, self-adjusting disposable diapers with elastic means the elastic means is located at the waist region
    • A61F13/49012—Form-fitting, self-adjusting disposable diapers with elastic means the elastic means is located at the waist region the elastic means being elastic panels

Definitions

  • the present invention relates to an absorbent article.
  • a three-piece type disposable diaper is known as an absorbent article that absorbs excrement.
  • a three-piece type disposable diaper generally, an absorbent main body that is applied to the crotch of the wearer to absorb excrement, a ventral belt member that covers the wearer's ventral side, and a back side of the wearer is covered. And a backside belt member.
  • an invention relating to a diaper in which the longitudinal intermediate portion of the absorbent main body is constricted and the shape of the absorbent main body is substantially hourglass-shaped is disclosed (for example, Patent Document 1). .
  • the presence of the constricted portion in the absorbent main body may easily cause a gap between the constricted portion and the wearer's leg.
  • a gap When such a gap is generated, there is a risk of excretion leaking from the gap.
  • the wearer is an infant, the diaper is often worn in a sleeping position, and the legs are often bent forward in the sleeping position. There was a problem that things were easy to leak.
  • the present invention has been made in view of the above problems, and the object of the present invention is to provide a wearer in a three-piece type diaper having an absorbent main body having a constricted portion at an intermediate portion in a longitudinal direction. It is in suppressing that a gap is generated between the leg and the absorbent main body.
  • the main invention for achieving the above object is: An absorbent article having a longitudinal direction and a transverse direction intersecting with the longitudinal direction, the absorbent article being provided along the longitudinal direction and absorbing excrement, and provided along the transverse direction
  • An elastic member that expands and contracts along the lateral direction is disposed on each of the ventral band member and the dorsal band member, and the ventral band member is provided on both lateral edges of the ventral band.
  • a member side edge, and the dorsal belt member has a dorsal belt on both lateral edges.
  • the absorbent article is formed into a cylindrical shape by joining the belly side band member side edge and the back side band member side edge, and the absorbent main body is a liquid absorbent material.
  • a liquid-impermeable leak-proof sheet that covers the absorbent core from the non-skin side of the absorbent core, and the absorbent core has a ventral end portion and a dorsal side.
  • ADVANTAGE OF THE INVENTION According to this invention, it can suppress that a clearance gap produces between a wearer's leg and an absorptive main body in a 3 piece type diaper provided with the absorptive main body which has a constriction part in the intermediate part of a longitudinal direction. .
  • FIG. 4A is a cross-sectional view taken along line AA and CC in FIG. 2
  • FIG. 4B is a cross-sectional view taken along line BB in FIG. It is a figure explaining the positional relationship of the constriction part of the absorptive core 11 in this embodiment, and the back
  • An absorbent article having a longitudinal direction and a transverse direction intersecting with the longitudinal direction, the absorbent article being provided along the longitudinal direction and absorbing excrement, and provided along the transverse direction
  • a ventral belt member in which the central portion in the lateral direction is fixed to the one end while covering the longitudinal end of the absorbent main body from the non-skin side of the absorbent main body, and the ventral belt member Provided along the lateral direction as a separate member, the central portion in the lateral direction is fixed to the other end while covering the other end in the longitudinal direction of the absorbent main body from the non-skin side of the absorbent main body.
  • An elastic member that expands and contracts along the lateral direction is disposed on each of the ventral band member and the dorsal band member, and the ventral band member is provided on both lateral edges of the ventral band.
  • a member side edge, and the dorsal belt member has a dorsal belt on both lateral edges.
  • the absorbent article is formed into a cylindrical shape by joining the belly side band member side edge and the back side band member side edge, and the absorbent main body is a liquid absorbent material.
  • a liquid-impermeable leak-proof sheet that covers the absorbent core from the non-skin side of the absorbent core, and the absorbent core has a ventral end portion and a dorsal side.
  • the elastic member disposed at a position overlapping with the constricted portion in the longitudinal direction is between one end portion and the other end portion in the lateral direction of the ventral belt member, or the It is desirable to have a non-continuous portion between one end and the other end in the lateral direction of the dorsal belt member, or both.
  • the elastic member disposed at a position overlapping with the constricted portion in the longitudinal direction is at least between one end portion and the other end portion in the lateral direction of the ventral belt member. It is desirable to have a non-continuous part.
  • an absorbent article by preventing the lateral stretching force from acting on the region on the back side of the absorbent core, at least the region does not cause wrinkles on the absorbent core and the infant sleeps.
  • the back When wearing diapers in a posture, the back can be prevented from hurting.
  • the back band member side edge portion has a region whose position overlaps with the absorbent core in the vertical direction, and the length of the overlapping region in the vertical direction is the back band. It is desirable that it is half or more of the length in the longitudinal direction of the member side edge.
  • the stretching force by the abdominal band elastic member and the dorsal band elastic member easily acts on the back side (buttock side) region of the absorbent core, so that the absorbent core can be worn when wearing a diaper.
  • the position can be made difficult to shift.
  • Such an absorbent article wherein the elastic member is disposed in the stretched part of the leg-around elastic member disposed along the longitudinal direction outside the absorbent core and in the back side belt member. It is desirable that the length in the vertical direction of the region intersecting with the member is not less than half of the length in the vertical direction of the side portion of the back band member.
  • the non-skin side surface of the back band member is provided with a tape member for holding the absorbent article in a rolled state when the absorbent article is discarded, and the tape It is desirable that the member and the absorbent core are disposed at a position where at least a part thereof overlaps in the longitudinal direction.
  • the feel of the post-processing tape is worn by the absorbent core having a thickness in the thickness direction between the wearer's skin (buttock) and the post-processing tape functioning as a cushion. It is difficult to convey to the person's skin (buttock), and the wearer is prevented from feeling uncomfortable.
  • the longitudinal length of the dorsal band member is longer than the longitudinal length of the ventral band member.
  • the back side band member has a larger area than the abdominal side band member, and the wearer's buttocks can be covered widely.
  • the longitudinal upper end of the back band member and the longitudinal lower end of the back band member are parallel to each other.
  • the dorsal belt member is less likely to be turned when the diaper is worn, and the wearer's buttocks are easily prevented from being exposed.
  • the absorbent main body has a sheet-like surface sheet member that covers the absorbent core from the skin side, and each end portion in the lateral direction of the surface sheet member is formed by the surface sheet member.
  • Each of the absorbent cores is formed to be higher than the standing height of the leak-proof wall portions formed at the positions of the ventral end portion and the dorsal end portion of the absorbent core. It is desirable that the standing height of the leak-proof wall formed at the position of the constriction is higher.
  • FIG. 1 is a schematic perspective view of a three-piece type disposable diaper (diaper 1) as an example of the absorbent article of the present embodiment.
  • FIG. 2 is a schematic plan view of the unfolded diaper 1 as seen from the skin side.
  • FIG. 3 is a schematic plan view of the diaper 1 viewed from the non-skin side.
  • 4A is a cross-sectional view taken along line AA and CC in FIG. 2
  • FIG. 4B is a cross-sectional view taken along line BB in FIG.
  • the diaper 1 has a vertical direction, a horizontal direction, and a thickness direction as three directions orthogonal to each other. Moreover, since the diaper 1 is a so-called three-piece type, it has three parts 10, 30a, 30b. That is, this diaper 1 has an absorbent main body 10 that is applied to the crotch part of the wearer and absorbs excrement such as urine as the first part, and the abdomen part of the wearer as the second part. It has an abdominal band member 30a that covers it, and a back band member 30b that covers the back side of the wearer as a third part. In the unfolded state of FIG.
  • the abdominal band member 30 a and the back band member 30 b are arranged in parallel with a space in the vertical direction, while the absorbent main body 10 is stretched between them.
  • End portions 10ea and 10eb in the longitudinal direction of the absorbent main body 10 are bonded and fixed to the nearest belt members 30a and 30b, respectively, and the external shape thereof is substantially H-shaped in plan view.
  • the absorptive main body 10 is folded in half with the substantially central portion C10 in the longitudinal direction as a folding position.
  • the abdominal band member side edge 30ae, the back side band member side edge 30be, and the abdominal band member side edge 30be which are portions where the abdominal band member 30a and the back side band member 30b facing each other in this folded state
  • the band members 30a and 30b are formed in an annular shape. Thereby, it becomes the diaper 1 of the wearing condition in which the trunk periphery opening 1HB and a pair of leg periphery opening 1HL as shown in FIG. 1 were formed.
  • connection structures are employable as a connection structure that connects the above-described ventral band member side edge 30ae and the back band member side edge 30be.
  • a connection structure such as welding
  • a detachable connection structure such as a fastening tape member (not shown)
  • an open-type diaper is used.
  • the former connection structure is used, and thereby the diaper 1 of the present embodiment is a pants type.
  • the longitudinal direction, the lateral direction, and the thickness direction of the diaper 1 are simply referred to as “vertical direction”, “lateral direction”, and “thickness direction”, respectively.
  • the side in contact with the wearer is also referred to as “skin side”, and the opposite side is also referred to as “non-skin side”.
  • the absorbent main body 10 includes an absorbent core 11, a surface sheet member 13 that covers the absorbent core 11 from the skin side of the core 11, and the absorbent core 11 of the core 11. And a back sheet member 15 that covers the non-skin side and forms the exterior of the absorbent main body 10.
  • the absorbent core 11 is a member formed by laminating liquid absorbent materials, and can absorb excrement such as urine.
  • liquid absorbent material for example, liquid absorbent fibers such as pulp fibers can be used.
  • the absorptive core 11 may contain, for example, a superabsorbent polymer as a liquid absorptive granule, or contains a liquid absorptive material other than a liquid absorptive fiber and a liquid absorptive granule. Also good.
  • the absorptive core 11 may be coat
  • the absorptive core 11 of this embodiment has a ventral end 11a that is an end region on the upper side in FIG. 2 and a back end 11b that is an end region on the lower side in FIG. . And between the abdominal side edge part 11a and the back side edge part 11b, it has the constriction part 11c whose width
  • the absorptive core 11 is comprised so that it may become a substantially hourglass shape in planar view as shown in FIG.
  • the surface sheet member 13 is a sheet-like member that covers the absorbent core 11 from the skin side, and is, for example, a liquid-permeable nonwoven fabric having a larger planar size than the absorbent core 11 (see FIG. 4B).
  • the back sheet member 15 is a sheet-like member that covers the absorbent core 11 from the non-skin side, and is a planar sheet that is larger than the absorbent core 11, and an example thereof is liquid such as polyethylene or polypropylene.
  • a sheet having a two-layer structure in which a permeable leak-proof sheet 15a and an exterior sheet 15b such as a nonwoven fabric are bonded to each other can be used.
  • the leak-proof sheet 15a of the back surface sheet member 15 and The top sheet member 13 is bonded together in a frame shape, whereby the absorbent main body 10 is generally formed.
  • the exterior sheet 15b In the diaper 1, as shown in FIGS. 1, 2, and 4B, so-called three-dimensional gathers LSG and leg gathers LG are formed by the exterior sheet 15b.
  • the three-dimensional gather LSG is a leak-proof wall portion provided upright at each lateral end portion of the top sheet member 13, while the leg gathers LG are formed in the leg-openings 1 HL and 1 HL of the diaper 1. It is a leg-around elastic part to be formed.
  • the exterior sheet 15b will be described in detail. First, as shown in FIG. 4B, the lateral dimension of the exterior sheet 15b is made sufficiently larger than the leak-proof sheet 15a. That is, the exterior sheet 15b is made of the leak-proof sheet 15a. It protrudes laterally from both lateral sides.
  • the protruding portion 15bf is folded back to the lateral center with the position forming the lateral end 10es of the absorbent body 10 being the folded position, and the rubber thread along the longitudinal direction in the vicinity of the folded position.
  • the leg-surrounding elastic member 17 and the leg-surrounding elastic member 19 such as the leg-surrounding elastic member 19 are fixed in a state of being stretched in the vertical direction, thereby forming the leg-surrounding gather LG.
  • assistant elastic member 19 is not necessarily required, and the leg periphery gathers LG may be formed only by the leg periphery elastic member 17.
  • the folded portion 15bg further extends toward the center in the lateral direction, and is joined to the end portion at a position covering the lateral end portion of the top sheet member 13.
  • the part joined to this end part functions as the base end part LSGb of the three-dimensional gather LSG, that is, the part on the tip side in the lateral direction further than the base end part LSGb serves as the free end part LSGf. 13 can stand up.
  • an LSG elastic member 18 such as a thread rubber is fixed to the distal end portion of the free end portion LSGf in a state of being extended in the vertical direction along the vertical direction.
  • the absorbent main body 10 is bent in the vertical direction so that the surface sheet member 13 side becomes the inner peripheral side.
  • the free end portion LSGf contracts in the vertical direction and rises from the top sheet member 13 due to the contraction force, whereby the free end portion LSGf functions as a three-dimensional gather LSG.
  • the standing height of the three-dimensional gather LSG varies depending on the width of the constricted portion in the lateral direction. Specifically, the wider the lateral width of the absorbent core 11, the shorter the portion 15bf protruding in the lateral direction described above, and the standing height of the three-dimensional gather LSG becomes lower. Conversely, as the lateral width of the absorbent core 11 is narrower, the portion 15bf protruding in the lateral direction is higher, and the standing height of the three-dimensional gather LSG is higher.
  • the constricted portion 11c having the narrow width in the lateral direction of the absorbent core 11 is higher in the standing height of the three-dimensional gather LSG than the ventral end portion 11a or the back end portion 11b in which the lateral width of the absorbent core 11 is wide.
  • the height increases.
  • solid gather LSG is shape
  • liquid permeation of tissue paper or the like as a second sheet may be provided between the top sheet member 13 and the absorbent core 11 or between the back sheet member 15 and the absorbent core 11.
  • a sex sheet may be interposed.
  • the ventral band member 30a and the dorsal band member 30b are both sheet members having a substantially rectangular shape in plan view made of a flexible sheet such as a nonwoven fabric.
  • dorsal band member 30b are formed by joining the nonwoven fabrics 31 and 32 in two sheets.
  • the ventral belt member 30a and the back belt member 30b are respectively centered in the lateral direction 30ac and 30bc while covering the longitudinal ends 10ea and 10eb of the absorbent main body 10 from the non-skin side of the absorbent main body 10.
  • the central portions 30ac and 30bc of the band members 30a and 30b are overlapped and joined to the end portions 10ea and 10eb.
  • the two nonwoven fabrics 31 and 32 do not have to be the same size.
  • the longitudinal length (short direction length) of the dorsal side band member 30b is longer than the longitudinal length (short direction length) of the ventral side band member 30a.
  • the lateral length of the ventral band member 30a is substantially the same as the lateral length of the dorsal band member 30b. That is, the area of the back side band member 30b is larger than that of the abdominal side band member 30a, so that the wearer's buttocks can be covered widely.
  • the shape of the back band member 30b is substantially rectangular, and the upper end and the lower end in the vertical direction are parallel to each other.
  • the opening edge of the waist opening 1HB and the opening edge of the leg opening 1HL in the back band member 30b are also parallel. Therefore, compared with the case where the leg periphery opening is slanted, when wearing the diaper 1, the dorsal belt member is less likely to be turned over, and it is easy to suppress the buttocks from being exposed.
  • the superposition of the absorbent main body 10 on the central portion 30ac of the ventral side band member 30a and the central portion 30bc of the back side band member 30b is the vertical end portion 30ae2 of the ventral side band member 30a and the vertical end portion of the back side band member 30b.
  • the absorbent main body 10 is not overlapped with 30be2, but the absorbent main body 10 is overlapped with the central portions 30ac2 and 30bc2 in the vertical direction with respect to the end portions 30ae2 and 30be2 (see FIG. 2).
  • the longitudinal end portions 30ae2 and 30be2 of the ventral belt member 30a and the back belt member 30b are formed as portions 30ae2 and 30be2 where the absorbent main body 10 does not overlap at all over the entire length in the lateral direction.
  • the non-overlapping portions 30ae2 and 30be2 are portions that constitute the waist opening 1HB (FIG. 1) of the diaper 1. Therefore, the elastic members 35 described later are provided in the portions 30ae2 and 30be2 in the portions 30ae2 and 30be2. It is provided continuously over substantially the entire length in the lateral direction.
  • a plurality of elastic members 35 such as thread rubber along the lateral direction are provided between the two nonwoven fabrics 31 and 32 related to the band members 30a and 30b. 35 ... are inserted and fixed to the nonwoven fabrics 31 and 32 in a state of being stretched in the lateral direction while being inserted, thereby giving the ventral belt member 30a and the back belt member 30b lateral stretchability, respectively.
  • the plurality of elastic members 35, 35... Are provided side by side in the vertical direction with an interval in the vertical direction.
  • the elastic member 35 provided on the ventral band member 30a is referred to as the ventral band elastic member 35a
  • the elastic member 35 provided on the back side band member 30b is referred to as the dorsal band elastic member 35b.
  • the basic structure of the elastic member 35 is substantially the same except for detailed specifications such as thickness, number, and vertical arrangement position. Therefore, below, the abdominal band elastic member 35a provided in the abdominal band member 30a will be described, and the description of the back side band elastic member 35b provided in the back side band member 30b may be omitted. This also applies to all configurations related to the back band member 30b.
  • the abdominal band member 30a and the dorsal band member 30b are each divided into two regions AU and AD in the vertical direction, and each of the two arranged in the vertical direction.
  • the areas AU and AD are referred to as “upper area AU” and “lower area AD” as they go from the end in the vertical direction toward the center.
  • the regions AU and AD are both strip-shaped regions along the horizontal direction.
  • the upper region AU is a portion constituting the waist opening 1HB of the diaper 1, and the region AU is a region in which the absorbent main body 10 (absorbent core 11) is not overlapped at all over the entire length in the lateral direction. It is. And, in the upper region AU, while the ventral band elastic member 35a (back side band elastic member 35b) is continuously arranged over substantially the entire length from one end to the other end in the lateral direction in the region AU, It is fixed in a stretched state in the lateral direction. Therefore, the upper region AU is given lateral stretchability over substantially the entire length in the lateral direction based on the ventral belt elastic member 35a, and this stretchability is the stretchability of the waistline opening 1HB of the diaper 1. It becomes.
  • the lower region AD is a region where the portion 10p of the absorbent main body 10 where the absorbent core 11 is present is overlapped and fixed to the lateral central portion ADc. In the lower region AD, the absorbent main body 10 is not superimposed on the portions ADe and ADe located on both sides of the central portion ADc.
  • the elastic member 35 is continuously extended over substantially the entire length from one end portion to the other end portion in the lateral direction of the portion ADe, and extends downward in the lateral direction. It is fixed with. Thereby, the stretchability in the lateral direction is given to each of the portions ADe, ADe over substantially the entire length in the lateral direction.
  • the elastic member 35 is discontinuously arranged in the lateral direction in the central portion ADc. Specifically, in this example, the end portions of the elastic member 35 are located at both end portions ADce, ADce in the lateral direction of the central portion ADc. The elastic member 35 is not present in the central portion ADcc. Therefore, in the central portion ADc, the elastic member 35 is disposed discontinuously in the lateral direction.
  • the elastic member 35 is not present in the central portion ADcc of the central portion ADc as described above, the central portion ADcc is hardly provided with stretchability, and thus the lateral contraction of the central portion ADcc is suppressed. Is done.
  • the lateral length Wa of the portion where the ventral band elastic member 35a is arranged in the both ends ADce in the lateral direction of the ventral band member 30a is equal to the both ends ADce in the lateral direction of the dorsal band member 30b. It is longer than the lateral length Wb of the portion where the back band elastic member 35b is disposed. In other words, the lateral length of the portion of the ventral belt elastic member 35a that overlaps the absorbent core 11 is longer than the lateral length of the portion of the backside belt elastic member 35b that overlaps the absorbent core 11. .
  • an illustration sheet 40 on which an illustration (not shown) such as an animal is formed is provided in the central portion ADc of the lower region AD. For the same reason as above, this illustration is provided. Generation of wrinkles of the sheet 40 is also suppressed. Therefore, the illustration becomes easy to see.
  • a post-processing tape 50 is provided on the non-skin side surface of the back band member 30b.
  • the post-processing tape 50 is an elongated tape-like member (tape member) having an adhesive surface, and is fixed to the back band member 30b in a folded state with the adhesive surface inside.
  • the folded post-treatment tape 50 is extended with respect to the diaper 1 rolled in the vertical direction so that the absorbent main body 10 is on the inner side, and the diaper is placed on the adhesive surface side. By winding it around 1, the diaper 1 can be held in a rolled state. Thereby, the diaper 1 can be discarded, without making the excrement etc. which adhered to the inside (absorbent main body 10) of the diaper 1 leak outside.
  • the leg of the wearer and the absorbent main body 10 are worn when the diaper is worn by adjusting the joining position of the back band member 30b to the absorbent main body 10 (particularly the constricted portion 11c of the absorbent core 11). A gap is less likely to occur between (absorbent core 11).
  • a description will be given using a comparative example.
  • FIG. 5 is a diagram for explaining the positional relationship between the constricted portion of the absorbent core 11 and the dorsal belt member 30b in the present embodiment.
  • FIG. 6 is a view for explaining the positional relationship between the constricted portion of the absorbent core 11 and the back band member 30b in the comparative example.
  • the abdominal band member side edge 30ae and the back band member side edge 30be are joined to form the abdominal band member 30a and the back band member 30b in an annular shape, as shown in FIG. It becomes a pants-type diaper.
  • the abdominal band elastic member 35a provided on the abdominal band member 30a and the dorsal band elastic member 35b provided on the back side band member 30b are connected via the joint portion of the band member side edge portions 30ae and 30be.
  • the expansion and contraction forces act on each other. Therefore, in the waist opening 1HB of the diaper 1, a stretching force along the lateral direction is generated by the abdominal band elastic member 35a and the back band elastic member 35b.
  • the opening 1HB comes into close contact with the wearer's torso due to the stretching force, and the position of the diaper 1 is less likely to shift when worn. Moreover, since the abdominal belt elastic member 35a and the back belt elastic member 35b respectively pull the absorbent main body 10 in the lateral direction, the absorbent main body 10 is widened outward in the lateral direction, and can widely cover the crotch portion of the wearer. That is, by joining the abdominal band member side edge 30ae and the back side band member side edge 30be, the lateral direction by the abdominal band elastic member 35a and the back band elastic member 35b in a wide range of the band members 30a and 30b. Stretching force comes to work.
  • the absorptive core 11 of this embodiment has a constriction part in the intermediate part (between the abdominal side edge part 11a and the back side edge part 11b) in the vertical direction in FIG. Interference between both side portions of the absorbent core 11 and the legs of the wearer is suppressed, so that the wearer can easily move the legs.
  • the absorbent core 11 since the absorbent core 11 has a narrower width in the constricted portion than the ventral end portion 11a and the dorsal end portion 11b, there is a gap between the absorbent core 11 and the wearer's leg in the narrow region. There is a problem that it is easy to produce.
  • the back band elastic member 35 b has a region overlapping the constricted portion 11 c of the absorbent core 11, thereby making it difficult to generate this gap. ing.
  • a part of the back band member side edge 30be overlaps with the constricted portion 11c of the absorbent core 11 in the vertical direction, thereby making it difficult to generate a gap.
  • the constricted portion 11c of the absorbent core 11 the expansion and contraction in the lateral direction by the ventral band elastic member 35a and the back band elastic member 35b as described above with respect to the region overlapping with the back band member side edge 30be.
  • the position of the back band member side edge 30be of the back band member 30b does not overlap with the constricted part 11c of the absorbent core 11 in the vertical direction.
  • the elastic force in the lateral direction by the ventral band elastic member 35a and the back band elastic member 35b does not act on the constricted portion 11c of the absorbent core 11, and the constricted portion 11c is not pulled outward in the lateral direction. . Therefore, a gap is still likely to occur between the wearer's leg and the absorbent core 11.
  • the back band member side edge 30be and the constricted portion 11c of the absorbent core 11 are overlapped in the vertical direction, so that the constricted portion 11c is overlapped.
  • dorsal band elastic member 35b is made to act, and the constriction part of the absorptive core 11 can be widened laterally. Thereby, it can be made hard to produce a clearance gap between a wearer's leg and the absorptive core 11.
  • dorsal band elastic member 35b acts is not restricted only to the constriction part 11c of the absorptive core 11.
  • the back side end portion 11 b of the absorbent core 11 also has a region overlapping with a part of the back side band member side edge portion 30 be in the vertical direction. Accordingly, a force pulling outward in the lateral direction also acts on the back end portion 11b.
  • the length of the overlapping region in the vertical direction between the back band member side edge 30be and the absorbent core 11 is at least half (1/2) or more of the vertical length of the back band member side edge 30be. (See FIG. 5).
  • the dorsal band elastic member 35 b (ventral band elastic member 35 a) is longitudinal at both lateral ends of the absorbent main body 10 in ADe (see FIG. 3) located on both lateral sides of the lower region AD.
  • the leg elastic member 17 and the leg auxiliary elastic member 19 are provided so as to intersect with a part of the leg elastic member 17 provided in a stretched state.
  • the length in the vertical direction of a region where the ventral belt elastic member 35a intersects with the leg-surrounding elastic member 17 and the leg-surrounding auxiliary elastic member 19 is defined as La.
  • the length in the vertical direction of the region where the back band elastic member 35b intersects the leg-surrounding elastic member 17 and the leg-surrounding auxiliary elastic member 19 is defined as Lb.
  • the leg elastic member 17 and the leg auxiliary elastic member 19 pull the absorbent main body 10 in the vertical direction, and the back belt elastic member 35b (ventral belt elastic member).
  • the force which pulls the absorptive main body 10 sideways by 35a) acts. That is, the force which makes the absorptive main body 10 (absorbent core 11) contact
  • leg-surrounding elastic member 17 and the leg-surrounding auxiliary elastic member 19 are not disposed in the stretched state over the entire longitudinal region of the absorbent main body 10, but are disposed in the stretched state in a predetermined region in the longitudinal direction. ing. In the region where the elastic member is arranged in the stretched state, a force that contracts in the longitudinal direction acts on the absorbent main body 10, and in the region where the elastic member is not arranged in the stretched state, it is vertical with respect to the absorbent main body 10. The force that contracts in the direction does not work.
  • the length in the vertical direction of the region where the force contracting in the vertical direction works is also referred to as “effective length” of the leg-hole elastic member 17 and the leg-hole auxiliary elastic member 19. 5 and 6 correspond to the effective lengths of the leg-hole elastic member 17 and the leg-hole auxiliary elastic member 19.
  • the length of La which is the abdominal intersection area
  • Lb which is the dorsal intersection area
  • the length of La is approximately equal to the length of Lb, which is the dorsal intersection area.
  • the region La in FIG. 6 there are seven ventral belt elastic members 35 a that intersect the effective length portion of the leg-hole elastic member 17, and in the region Lb in FIG. 6, the effective length portion of the leg-hole elastic member 17
  • the force acting on the effective length of the leg-surrounding elastic member 17 acts almost evenly by the back-side belt elastic member 35b.
  • the fit of the absorbent main body 10 may be deteriorated on the back side when a person wearing a diaper moves his / her foot. Since humans often move their legs mainly to the front side (abdominal side), the absorbent main body 10 (absorbent core 11) is pulled to the front side (ventral side) each time the wearer moves his legs. Since the contraction force by the ventral band elastic member 35a (back band elastic member 35b) is constant, it is more in the vertical direction than the force pulling the absorbent main body 10 (absorbent core 11) outward in the lateral direction at the buttocks of the wearer.
  • the pulling force becomes dominant and the position of the absorbent main body 10 (absorbent core 11) is likely to shift.
  • excrement may leak to the outside from the portion where the absorbent main body 10 (absorbent core 11) is displaced.
  • a diaper is often worn in a sleeping position. Therefore, if a gap occurs in the crotch portion on the back side (buttock side), excrement is likely to leak.
  • the end 10eb of the absorbent main body 10 tends to be shifted inward in the lateral direction every time the wearer moves his / her foot. Therefore, the absorptive main body 10 (absorbent core 11) is turned up and the buttock is easily exposed.
  • the length of Lb which is the dorsal intersection region, is longer than the length of La, which is the ventral intersection region.
  • the region around the leg elastic member 17 is a region around the leg elastic member 35b where the portion (effective length) in the longitudinally extending state and the dorsal belt elastic member 35b intersect. 17 (the leg-surrounding auxiliary elastic member 19) is larger than a region intersecting the ventral belt elastic member 35a and a portion (effective length) in the longitudinally extended state. Specifically, in the region La in FIG.
  • the number of ventral side elastic members 35a intersecting the effective length portion of the leg elastic member 17 is seven, whereas in the region Lb in FIG. There are ten dorsal band elastic members 35b intersecting the effective length portion, more than seven. Therefore, the force by which the absorbent main body 10 (absorbent core 11) and the leg elastic member 17 are pulled laterally outward by the dorsal band elastic member 35b is greater than the force by which the ventral band elastic member 35a is pulled laterally outward. Also grows. Thereby, in the diaper 1 of this embodiment, the fitting property on the back side can be enhanced.
  • the effective length in the back side of the leg periphery elastic member 17 is at least 1/2 or more of the vertical direction length of the back side belt member side edge part 30be.
  • the effective length Lb on the back side of the leg-hole elastic member 17 is more than half of the longitudinal length of the back side band member side edge portion 30be.
  • the abdominal band member 30a and the back band member 30b are formed in an annular shape, the lateral pulling force by the ventral band elastic member 35a and the back band elastic member 35b works.
  • the fitting property of the diaper 1 can be made higher by the effect mentioned above.
  • the lateral length Wa of the portion of the ventral band elastic member 35a that overlaps the absorbent core 11 is the lateral length of the portion of the dorsal band elastic member 35b that overlaps the absorbent core 11.
  • the strength of the force with which the absorbent core 11 is pulled outward in the lateral direction can be adjusted. The longer the portion where the elastic member overlaps the absorbent core 11, the stronger the absorbent core 11 is pulled outward in the lateral direction by the elastic member.
  • the back band elastic member 35b and the absorbent core 11 By shortening the overlapping portion, the force for pulling the absorbent core 11 directly outward in the lateral direction on the back side is prevented from becoming too strong. Thereby, while maintaining the fit of the absorbent main body 10 in the buttocks, a slight space is formed between the buttocks and the absorbent core 11, and the excreted feces can be held in the space without diffusing. it can. On the other hand, by strengthening the force that pulls the absorbent core 11 directly in the lateral direction on the abdominal side, the absorbent core 11 can be brought into close contact with the body and leakage of excreted urine can be suppressed.
  • the elastic force when the back band elastic member 35b expands and contracts in the lateral direction is larger than the elastic force when the leg elastic member 17 or the leg auxiliary elastic member 19 expands and contracts in the vertical direction.
  • Each elastic member is provided so that is stronger. That is, when the leg elastic member 17 and the leg auxiliary elastic member 19 are attached to the absorbent main body 10, the back band elastic member 35 b is set to be higher than the ratio of extending the leg elastic member 17 and leg auxiliary elastic member 19.
  • Each elastic member is arrange
  • the absorptive main body 10 (absorbent core 11) is widened laterally in the wearer's buttocks region or the like, It helps to prevent the excrement from leaking.
  • the post-treatment tape 50 when the diaper is worn, can suppress a feeling of strangeness in the touch on the buttock side.
  • the longitudinal length Lb of the region where the back band elastic member 35b and the leg elastic member 17 intersect is the vertical length La of the region where the ventral band elastic member 35a and the leg elastic member 17 intersect. Longer than. That is, the overlap part in the vertical direction of the back
  • the post-processing tape 50 and the absorbent core 11 are arranged at a position where at least a part thereof overlaps in the vertical direction.
  • the absorbent core 11 having a thickness in the thickness direction exists between the wearer's skin (buttock) and the post-treatment tape 50.
  • the elastic member 35a (35b) of the central portion ADc is not used in the ventral belt member 30a (backside belt member 30b) for the purpose of reducing the stretchability of the horizontal central portion ADc of the lower region AD. It was continuous. That is, the elastic member arranged at a position overlapping with the constricted portion 11c of the absorbent core 11 in the vertical direction is arranged so as to be discontinuous in the lateral central portion ADc of the band member. As an example of this discontinuous elastic member, as shown in FIG. 3, elastic members 35 a (35 b) are present at both lateral ends ADce and ADce of the central portion ADc. The configuration in which the elastic member 35a (35b) is not present is illustrated in the horizontal central portion ADcc of the central portion ADc, but is not limited thereto.
  • FIG. 7 is a schematic plan view for explaining an example thereof.
  • the non-skin-side non-woven fabric 31 of the ventral band member 30 a is removed and the elastic member 35 a is exposed to the outside.
  • the elastic member 35a located at the central portion ADcc is in a state of being finely divided.
  • the elastic member 35a will not substantially impart stretchability to the central portion ADcc. Therefore, as long as the elastic member 35a is cut into pieces, it may be present in the central portion ADcc.
  • the length of the elastic member 35a in a chopped state is, for example, greater than 0 mm and not greater than 5 mm, and more desirably greater than 0 mm and not greater than 3 mm. However, if the elastic member 35a is chopped, the appearance deteriorates. Therefore, it is desirable that the elastic member 35D is not present in the central portion ADcc (FIG. 3).
  • the back side band elastic member 35b arrange
  • the back band elastic member 35b may be continuously arranged over the entire lateral direction (not shown).
  • a lateral expansion and contraction force is exerted on the central portion ADc by the back band elastic member 35b.
  • the leg elastic member 17 leg auxiliary auxiliary elastic member 19
  • the back side band member 30b are pulled to each other in the portion, and the entire back side band member 30b.
  • ventral band elastic members 35a provided in the ventral band member 30a those disposed at positions overlapping the constricted portion 11c of the absorbent core 11 in the vertical direction are discontinuous portions in the central portion ADc.
  • the elastic member 35 is discontinuously arranged in the central portion ADc in the lateral direction in the lower region AD of FIG. 3, but this is not a limitation.
  • the elastic member 35 may not be disposed in the central portion ADc. That is, in the example of FIG. 3 described above, the end portion of the elastic member 35 is applied to the center portion ADc at the position of each end portion ADce, ADce in the horizontal direction. It does not have to be at the position of the end portion ADce of ADc.
  • the material of the exterior sheet 15b and the band members 30a and 30b is a nonwoven fabric, but is not limited to a nonwoven fabric.
  • a woven fabric or a sheet member other than the woven fabric may be used.
  • the exterior sheet 15b may be omitted, and in that case, the leak-proof sheet 15a forms the exterior of the absorbent main body 10.
  • the rubber thread is exemplified as the elastic member 35.
  • the elastic member 35 is not limited to this.
  • a belt-like rubber may be used as the elastic member 35, a belt-like non-woven fabric having elasticity or a belt-like resin film having elasticity.

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/JP2014/075867 2013-10-04 2014-09-29 吸収性物品 WO2014208781A2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201480054453.0A CN105636563B (zh) 2013-10-04 2014-09-29 吸收性物品

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2013-209233 2013-10-04
JP2013209233A JP6118703B2 (ja) 2013-10-04 2013-10-04 吸収性物品

Publications (2)

Publication Number Publication Date
WO2014208781A2 true WO2014208781A2 (ja) 2014-12-31
WO2014208781A3 WO2014208781A3 (ja) 2015-02-26

Family

ID=52142788

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2014/075867 WO2014208781A2 (ja) 2013-10-04 2014-09-29 吸収性物品

Country Status (4)

Country Link
JP (1) JP6118703B2 (zh)
CN (1) CN105636563B (zh)
TW (2) TWI663967B (zh)
WO (1) WO2014208781A2 (zh)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108430416A (zh) * 2015-12-25 2018-08-21 尤妮佳股份有限公司 短裤型一次性尿布
CN108472173A (zh) * 2015-12-28 2018-08-31 尤妮佳股份有限公司 吸收性制品
CN108883006A (zh) * 2015-12-28 2018-11-23 尤妮佳股份有限公司 吸收性制品

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5833270B1 (ja) * 2015-08-10 2015-12-16 ユニ・チャーム株式会社 使い捨て着用物品
ES2909233T3 (es) 2017-03-28 2022-05-05 Essity Hygiene & Health Ab Artículo absorbente de tipo pantalón desechable adaptado para un usuario masculino
JP6503428B2 (ja) * 2017-09-27 2019-04-17 大王製紙株式会社 パンツタイプ使い捨ておむつ
JP6767407B2 (ja) * 2018-02-28 2020-10-14 ユニ・チャーム株式会社 低体重児用おむつ
WO2023222241A1 (en) * 2022-05-20 2023-11-23 Essity Hygiene And Health Aktiebolag A disposable absorbent pant-type article and a method for producing a disposable absorbent pant-type article
WO2023222242A1 (en) * 2022-05-20 2023-11-23 Essity Hygiene And Health Aktiebolag A disposable absorbent pant-type article and a method for producing a disposable absorbent pant-type article

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1066710A (ja) * 1996-08-27 1998-03-10 Oji Paper Co Ltd 吸収性物品
JP3524026B2 (ja) * 1999-11-17 2004-04-26 ユニ・チャーム株式会社 体液吸収性着用物品
SE0300715D0 (sv) * 2003-03-14 2003-03-14 Sca Hygiene Prod Ab Absorberande alster
JP2006246971A (ja) * 2005-03-08 2006-09-21 Kao Corp パンツ型使い捨ておむつ
WO2006118214A1 (ja) * 2005-04-28 2006-11-09 Zuiko Corporation 着用物品及びその製造方法
US7972316B2 (en) * 2005-05-09 2011-07-05 Kao Corporation Disposable diaper
JP4659020B2 (ja) * 2007-12-28 2011-03-30 大王製紙株式会社 パンツ型使い捨ておむつ
KR101528952B1 (ko) * 2007-12-28 2015-06-15 다이오 페이퍼 코퍼레이션 일회용 흡수성 물품
JP4494458B2 (ja) * 2007-12-28 2010-06-30 大王製紙株式会社 パンツ型使い捨ておむつ
JP5848502B2 (ja) * 2010-11-10 2016-01-27 株式会社リブドゥコーポレーション 吸収性物品および吸収性物品の製造方法
JP5812651B2 (ja) * 2011-03-31 2015-11-17 ユニ・チャーム株式会社 使い捨ておむつ
TW201244701A (en) * 2011-05-04 2012-11-16 Kang Na Hsiung Entpr Co Ltd Paper diaper

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108430416A (zh) * 2015-12-25 2018-08-21 尤妮佳股份有限公司 短裤型一次性尿布
CN108472173A (zh) * 2015-12-28 2018-08-31 尤妮佳股份有限公司 吸收性制品
KR20180098288A (ko) * 2015-12-28 2018-09-03 유니 참 코포레이션 흡수성 물품
CN108883006A (zh) * 2015-12-28 2018-11-23 尤妮佳股份有限公司 吸收性制品
EP3372210A4 (en) * 2015-12-28 2018-12-26 Uni-Charm Corporation Absorbent article
EP3372211A4 (en) * 2015-12-28 2018-12-26 Uni-Charm Corporation Absorbent article
US10799397B2 (en) 2015-12-28 2020-10-13 Unicharm Corporation Absorbent article
AU2016381718B2 (en) * 2015-12-28 2021-06-10 Unicharm Corporation Absorbent article
US11298271B2 (en) 2015-12-28 2022-04-12 Unicharm Corporation Absorbent article
CN108472173B (zh) * 2015-12-28 2024-01-16 尤妮佳股份有限公司 吸收性制品
KR102639743B1 (ko) 2015-12-28 2024-02-23 유니 참 코포레이션 흡수성 물품

Also Published As

Publication number Publication date
TWI633877B (zh) 2018-09-01
JP6118703B2 (ja) 2017-04-19
WO2014208781A3 (ja) 2015-02-26
CN105636563B (zh) 2019-09-27
TWI663967B (zh) 2019-07-01
TW201828906A (zh) 2018-08-16
CN105636563A (zh) 2016-06-01
JP2015071006A (ja) 2015-04-16
TW201526883A (zh) 2015-07-16

Similar Documents

Publication Publication Date Title
JP6118703B2 (ja) 吸収性物品
CN106132371B (zh) 吸收性物品
JP4980420B2 (ja) 使い捨てプルオン衣料
KR101486975B1 (ko) 팬츠형 흡수성 물품
JP5999889B2 (ja) パンツ型吸収性物品
JP2019030551A (ja) パンツ型吸収性物品
WO2014087970A1 (ja) 吸収性物品
JP5721987B2 (ja) 吸収性物品
JP6412834B2 (ja) 吸収性物品
JP6255203B2 (ja) 吸収性物品
JP6660961B2 (ja) 着用物品
JP6236420B2 (ja) 吸収性物品
JP2011177427A (ja) おむつ
WO2016104070A1 (ja) 使い捨ておむつ
JP7252394B1 (ja) 吸収性物品
CN112118817B (zh) 短裤型吸收性物品
JP7366597B2 (ja) 吸収性物品
JP7107750B2 (ja) 使い捨てパンツ型おむつ
WO2019220934A1 (ja) パンツ型吸収性物品
WO2019131007A1 (ja) パンツ型吸収性物品
JP6181365B2 (ja) 吸収性物品
JP2021106817A (ja) 吸収性物品
JP6060767B2 (ja) パンツ型使い捨ておむつ

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 14818230

Country of ref document: EP

Kind code of ref document: A2

WWE Wipo information: entry into national phase

Ref document number: IDP00201602161

Country of ref document: ID

NENP Non-entry into the national phase in:

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 14818230

Country of ref document: EP

Kind code of ref document: A2