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WO2013038683A1 - Article portable jetable - Google Patents

Article portable jetable Download PDF

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Publication number
WO2013038683A1
WO2013038683A1 PCT/JP2012/005855 JP2012005855W WO2013038683A1 WO 2013038683 A1 WO2013038683 A1 WO 2013038683A1 JP 2012005855 W JP2012005855 W JP 2012005855W WO 2013038683 A1 WO2013038683 A1 WO 2013038683A1
Authority
WO
WIPO (PCT)
Prior art keywords
regulating member
stretchable
longitudinal direction
guide line
wearing article
Prior art date
Application number
PCT/JP2012/005855
Other languages
English (en)
Inventor
Noriyuki Kurita
Tomoko Tsuji
Original Assignee
Unicharm Corporation
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 Unicharm Corporation filed Critical Unicharm Corporation
Publication of WO2013038683A1 publication Critical patent/WO2013038683A1/fr

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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
    • A61F13/47—Sanitary towels, incontinence pads or napkins
    • A61F13/472—Sanitary towels, incontinence pads or napkins specially adapted for female use
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/45—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape
    • A61F13/49—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape specially adapted to be worn around the waist, e.g. diapers, nappies
    • A61F13/496—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape specially adapted to be worn around the waist, e.g. diapers, nappies in the form of pants or briefs
    • 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
    • A61F2013/16—Sanitary towels; Means for supporting or fastening them

Definitions

  • the present disclosure relates to disposable wearing articles, more specifically, relates to disposable wearing articles such as disposable diapers, disposable toilet training pants, disposable incontinent briefs, disposable sanitary pants, or the like.
  • JP 2010-35726 A discloses a disposable diaper including a chassis having front and rear regions and fastening tapes attached in the rear region, wherein an annular waist opening is formed by connecting the fastening tapes to an outer sheet in the front region.
  • a slit is formed and an elastic band is attached so as to cover the slit from an outer surface side of the side flap.
  • the elastic band allows the entirety of the diaper to be capable of stretching and contracting in the lateral direction. As a result, a waist opening of the diaper may be kept in close contact with the wearer's body.
  • each slit is formed by cutting a portion of each side flap located in the rear region of the diaper chassis.
  • the inventor(s) have recognized that, if the side flaps are further torn from the slits during use of the diaper, the chassis might be ruptured.
  • Some embodiments of the present invention provide a disposable wearing article having a longitudinal direction and lateral direction.
  • the article includes a chassis and a fastening system.
  • the chassis includes a skin facing side and a non-skin facing side opposite thereto, first and second waist regions, and a crotch region located between the first and second waist region.
  • the fastening system is for connecting the first and second waist regions to each other and includes a first fastening component disposed on the first waist region, and a second fastening component engageable with the first fastening component and attached in one of a pair of side panels extending from the second waist region in the lateral direction.
  • Each side panel includes a stretchable member capable of stretching in the lateral direction and a regulating member overlapping the stretchable member.
  • the stretchable member is joined to the regulating member at a pair of joining sections.
  • the joining sections are spaced apart from each other in the lateral direction.
  • a splitting guide line is formed on the regulating member between the joining sections and extends between a front end edge and a rear end edge of the regulating member in the longitudinal direction.
  • FIG.1 is a perspective view illustrating an assembled state of a disposable diaper as an example of disposable wearing articles in some embodiments.
  • FIG.2 is a plan view seen from a skin facing side of the diaper in a developed state.
  • FIG.3 is a perspective partially broken view of the diaper.
  • FIG.4 is a cross section view along IV-IV line of FIG.2.
  • FIG.5(a) is a plan view of a side panel of a first embodiment, before a regulating member of the side panel is split along a splitting guide line.
  • FIG.5(b) is a plan view of the side panel after the regulating member is split along the splitting guide line.
  • FIG.6(a) is a cross-section view of a side panel of a second embodiment, before a regulating member of the side panel is split along a splitting guide line.
  • FIG.6(b) is a cross-section view of the side panel after the regulating member is split along a splitting guide line.
  • FIG.7 is a plan view similar to FIG. 5(a) illustrating another variation of the splitting guide line.
  • FIG.8 is a plan view similar to FIG. 5(a) illustrating another variation of the splitting guide line.
  • FIG.9 is a plan view similar to FIG. 5(a) illustrating another variation of the splitting guide line.
  • a diaper 1 has a longitudinal direction Y and lateral direction X, and includes a front waist region 11, a rear waist region 12, a crotch region 13 located between the front and rear waist regions 11, 12, front and rear end edges 14, 15 extending in the lateral direction X, and lateral edges 16 extending in the longitudinal direction Y.
  • One of the front and rear waist regions is referred to herein as a first waist region, and the other of the front and rear waist regions is referred to herein as a second waist region.
  • the diaper 1 further includes a waist opening formed by engaging hook components 72 of a fastening system provided in the rear waist region 12 with the front waist region 11 thereby to come in close contact with the wearer's body.
  • the diaper 1 has an imaginary longitudinal center line P-P to bisect a dimension in the lateral direction X so as to be substantially symmetrical about the imaginary longitudinal center line P-P.
  • some reference signs of similar symmetrical components/portions are omitted.
  • the diaper 1 includes a liquid permeable topsheet 20 lying on a skin facing side, a backsheet 30 lying on a non-skin facing side (garment facing side) opposite to the skin facing side, an absorbent structure 40 interposed between these top- and backsheets 20, 30, and a hardly-liquid permeable or liquid impermeable leakage-barrier sheet 50 interposed between the absorbent structure 40 and the backsheet 30.
  • a pair of containment sheets 60 is provided being spaced apart from each other in the lateral direction X and extending in the longitudinal direction Y.
  • the topsheet 20 and backsheet 30 define a chassis 10 of the diaper 1.
  • topsheet 20 for example, a hydrophilic spunbond nonwoven fabric or a point-bonded nonwoven fabric having a mass per unit area of about 15 to about 35 g/m 2 , preferably about 18 to about 23 g/m 2 may be used.
  • backsheet 30 for example, a spunbond/melt-blown/spunbond (hereinafter referred to as SMS) nonwoven fabric or a spunbond nonwoven fabric having a mass per unit area of about 10 to about 30 g/m 2 may be used.
  • SMS spunbond/melt-blown/spunbond
  • each containment sheet 60 for example, an SMS nonwoven fabric having a mass per unit area of about 10 to about 30 g/m 2 may be used.
  • Each containment sheet 60 are laid on the topsheet 20 so that the front and rear end edges 61, 62 of the containment sheet 60 may respectively align with front and rear end edges 21, 22 of the front sheet 20 and be joined to each other by known joining means such as a hot melt adhesive or the like (not illustrated).
  • a proximal edge portion 63 of each containment sheet 60 overlaps a lateral edge portion 33 of the backsheet 30 and joined to each other by known joining means such as a hot melt adhesive or the like (not illustrated).
  • an elastic 65 extending in the longitudinal direction Y is contractibly attached in a stretched state. Due to the contraction of the elastic 65, the distal edge portion 64 may be spaced apart from the topsheet 20 toward the wearer's skin so as to come into close contact with the wearer's skin. As a result, bodily waste such as feces may be contained inside the containment sheet 60.
  • the absorbent structure 40 is disposed at least in the crotch region 13. In this embodiment, however, it is arranged to extend from the crotch region 13 into the front and rear waist regions 11, 12, thereby to absorb bodily exudates such as urine or the like in a relatively large range.
  • the absorbent structure 40 is formed by wrapping a liquid absorbent core with a liquid dispersing wrapping sheet such as tissue paper or the like.
  • a liquid dispersing wrapping sheet such as tissue paper or the like.
  • As the core fluff wood pulp, superabsorbent polymer particles or a mixture thereof may be used.
  • the core and the wrapping sheet may be joined to each other by known joining means such as a hot melt adhesive or the like (not illustrated).
  • the leakage-barrier sheet 50 As the material of the leakage-barrier sheet 50 disposed between the absorbent structure 40 and the backsheet 30, a hardly-liquid permeable, preferably a liquid impermeable and breathable plastic film may be used.
  • the leakage-barrier sheet 50 is formed to have a larger area than that of the absorbent structure 40. With such an arrangement, it is possible to prevent the exudates such as urine or the like having been absorbed by the absorbent structure 40 from leaking outside the diaper 1.
  • the leakage-barrier sheet 50 may be interposed between the wrapping sheet of the absorbent structure 40 and the backsheet 30 and secured by known joining means such as a hot melt adhesive or the like (not illustrated).
  • leg elastics 51 and waist elastics 52 are attached on a surface opposite to a surface facing the backsheet 30 of the leakage-barrier sheet 50.
  • the leg elastics 51 and the waist elastics 52 are secured to at least one of the leakage-barrier sheet 50 and the containment sheet 60 by known joining means such as a hot melt adhesive or the like (not illustrated).
  • the leg elastics 51 are disposed so as to extend in the longitudinal direction Y along the both lateral edges 16 and are contractibly attached to the diaper 1 in the crotch region 13.
  • the leg elastics 51 respectively include a first end edge 51a located on the side of the front waist region 11 and a second end edge 51b located on the side of the rear waist region 12.
  • the first end edge 51a extends to the front waist region 11, while the second end edge 51b extends to the rear waist region 12.
  • the waist elastics 52 are disposed so as to extend in the lateral direction X along the rear end edge 15 and are contractibly attached to the diaper 1 in the rear waist region 12.
  • As the leg elastics 51 and the waist elastics 52 a plurality of thread, string or strand elastics may be used.
  • a pair of side panels 70 is attached to the lateral edges 16 in the rear waist region 12 of the chassis 10.
  • Each side panel 70 includes a stretchable member 80 stretchable in the lateral direction X and a regulating member 90 overlapping the stretchable member 80 and attached thereto so as to regulate the stretch/elongation of the stretchable member 80.
  • the stretchable member 80 includes a first sheet 81 lying on the skin facing side, a second sheet 82 lying on the non-skin facing side, and a plurality of side panel elastics 83 disposed between these sheets.
  • the first and second sheets 81, 82 are substantially the same in shape and size and joined to each other by known joining means such as a hot melt adhesive or the like (not illustrated).
  • a hot melt adhesive or the like
  • an SMS nonwoven fabric having a mass per unit area of about 10 to about 30 g/m 2 may be used.
  • These first and second sheets 81, 82 are non-stretchable.
  • the term "non-stretchable" means that it is not elastically stretchable and, when it is used for the diaper 1, it does not change any dimension affecting a circumferential dimension of the waist opening when putting the diaper 1 on a wearer even if it is pulled by at least a normal force in the lateral direction X.
  • the respective side panel elastics 83 are contractibly attached at predetermined intervals in the longitudinal direction Y and contractibly attached in a stretched state in the lateral direction X.
  • the stretchable member 80 may be elastically stretchable.
  • the side panel elastics 83 for example, thread, string or strand elastics of about 470 to about 940 dtex may be used and the elastics may be disposed at a pitch of about 5 to about 15 mm in the longitudinal direction Y and attached in a stretched state in a stretch ratio in a range from about 2 to about 3 in the lateral direction X, for example.
  • the side panel elastics 83 of about 620 dtex are used, and are disposed at a pitch of about 10 mm in the longitudinal direction Y and attached in a stretched state in a stretch ratio of about 2.6 in the lateral direction X.
  • the second sheet 82 of the stretchable member 80 has a surface on which a regulating member 90 is placed, and an opposite surface facing the first sheet 81.
  • the regulating member 90 is non-stretchable, and is made, for example, of a nonwoven fabric.
  • a spunbond nonwoven fabric, an SMS nonwoven fabric or the like having a mass per unit area of about 40 to about 60 g/m 2 , may be used.
  • each regulating member 90 is joined to the second sheet 82 via the joining sections 91, 92 which are spaced apart from each other in the lateral direction X and extend in the longitudinal direction Y.
  • the joining sections 91, 92 are provided on at least one of facing surfaces of the stretchable member 80 and the regulating member 90.
  • the joining sections 91, 92 are positioned so as not to overlap the side panel elastics 83, i.e., provided in portions where a contracting force of the elastics 83 is not directly exerted.
  • the side panel elastics 83 have end portions thereof cut back or the like in the attaching process, it is possible to position the joining sections 91, 92 to overlap the end portions of the side panel elastics 83, that is, the relaxed end portions where the contracting force is not exerted.
  • the joining sections 91, 92 in positions in which the contracting force of the side panel elastics 83 is exerted.
  • the joining sections 91, 92 having an increased joining strength may be provided so that the regulating member 90 may not peel off from the second sheet 82.
  • the second sheet 82 is directly joined to the regulating member 90 in this embodiment, it is also possible that further sheet or sheets is/are interposed between the second sheet 82 and the regulating member 90.
  • the joining sections 91, 92 are provided on the second sheet 82 or on the regulating member 90 via other non-stretchable sheet(s).
  • the regulating member 90 has an inner edge portion 90c secured by joining means (not illustrated) between the backsheet 30 and the containment sheet 60 and extending outwardly from the lateral edges 16 of the chassis 10 in the lateral direction X.
  • Each pair of hook components 72 as a mechanical fastening element is attached to one of the pair of side panels 70 extending from the second waist region 12 in the lateral direction X, e.g., on an outer edge portion 90d of a tab sheet 71 which is joined on the regulating member 90.
  • the front and rear waist regions 11, 12 are connected to each other.
  • the hook components 72 are also referred to as a second fastening component, and predetermined areas on the backsheet 30 of the front waist region 11 are also referred to as a first fastening component.
  • the hook components 72 may be engaged with selective areas of the non-skin facing side of the chassis 10.
  • the front and rear waist regions 11, 12 may be connected based on the body shape or physical condition of the wearer so as to keep it in close contact with the wearer's body.
  • the fastening system uses releasable adhesive instead of, or in addition to, the described hook and loop arrangement.
  • a splitting guide line 93 extending in the longitudinal direction Y is formed between the joining sections 91, 92 in the regulating member 90.
  • the splitting guide line 93 passes through the regulating member 90 in a thickness direction thereof and is formed by a series of perforations 94 in the longitudinal direction Y.
  • the perforations 94 extend from the front and rear end edges 90a, 90b of the regulating member 90 inwardly in the longitudinal direction Y respectively.
  • the perforations 94 are arranged in a straight line.
  • each of the perforations 94 is a slit extending in the longitudinal direction Y.
  • the regulating member 90 is splittable.
  • the regulating member 90 is joined so as to overlap the second sheet 82 when the stretchable member 80 is contracted. Accordingly, even if an attempt is made to stretch the stretchable member 80 when the regulating member 90 is not split along the splitting guide line 93, the stretch/elongation of the stretchable member 80 is regulated (i.e., limited) by the regulating member 90.
  • the stretchable member 80 becomes exposed therebetween and may be elastically stretchable in the lateral direction X via the joining sections 91, 92.
  • the diaper 1 when the diaper 1 is put on a wearer having a small waist size, the diaper 1 may be put on by engaging the hook components 72 with the front waist region 11 without splitting the regulating member 90, i.e., keeping the state as illustrated in FIG.5(a).
  • the diaper 1 When the diaper 1 is applied on a wearer having a large waist size, the diaper 1 may be put on by engaging the hook components 72 with the front waist region 11 after splitting the regulating member 90 as illustrated in FIG.5(b).
  • the configuration of the side panels 70 may be chosen based on a body shape of the wearer so that the diaper 1 may be kept in close contact with the wearer's body.
  • the diaper 1 when the diaper 1 is used with the regulating member 90 that has been split, the diaper 1 may come in contact with the wearer's body more closely due to the elasticity of stretchable member 80. Moreover, since a pair of side panels 70 is attached to the chassis 10 at the lateral edges, it is also possible to use the diaper 1 by splitting only either one of the regulating members 90 without splitting the other.
  • the splitting guide line 93 is formed between the front and rear end edges 90a, 90b of the regulating member 90.
  • only a portion of the splitting guide line 93 in the vicinities of the rear end edge 90b may be split so that the elasticity may appear in the vicinities of the rear end edge of the stretchable member 80, i.e., in the vicinities of the waist opening, thereby the diaper 1 may come in contact with the wearer's body more closely.
  • splitting guide line 93 For a wearer having a body shape of a small waist and large buttocks, it is possible to split only a portion of the splitting guide line 93 in the vicinities of the front end edge 90a so that the elasticity of the stretchable member 80 may appear in the vicinities of the front end edge of the stretchable member 80, i.e., in the vicinities of the leg openings.
  • the series of perforations 94 which are intermittent in the splitting guide line 93, it becomes possible to split the splitting guide line 93 halfway from either end edge as described above.
  • the diaper 1 is used with the splitting guide line 93 has been split halfway in the longitudinal direction Y and the splitting guide line 93 is split further due to the wearer's movements during use thereof, since the stretchable member 80 is disposed to overlap the splitting guide line 93, the close contact between the diaper 1 and the wearer's body will not be interrupted. Moreover, even if the splitting guide line 93 is split unintentionally, since the splitting guide line 93 is formed in the side panel 70, the absorption performance and/or pleasant feel of the diaper 1 will not be affected.
  • the splitting guide line 93 is formed in the chassis 10 and is split unintentionally, the feel of the diaper 1 against the wearer's skin might be deteriorated and/or the absorption performance of the absorbent structure 40 disposed in the chassis 10 might be decreased, and eventually leading to leakage of a body fluid such as urine. Since the regulating member 90 is disposed on the non-skin facing side of the stretchable member 80, the split edges of the regulating member 90 do not come into contact with the wearer's skin, thereby preventing skin irritation.
  • the strength to split the regulating member 90 may be changed appropriately in the splitting guide line 93.
  • the splitting strength may be adjusted by a dimension of each perforation 94 in the longitudinal direction Y or a dimension between each perforation 94, and also may be adjusted by the type of a nonwoven fabric used as the regulating member 90.
  • each perforation 94 in the longitudinal direction Y is set at about 3 to about 22 mm, and the dimension of each non-through portion in the longitudinal direction Y between the adjacent perforations 94 at about 0.2 to about 2 mm.
  • the dimension of each perforation 94 is set at about 9 mm, while the dimension of each non-through portion is set at about 1 mm. It is possible to set all the dimensions of perforations 94 to be equal, or, for example, to increase a dimension of the perforations 94 on the side of the front end edge 90a and decrease a dimension of the perforations 94 on the side of the rear end edge 90b.
  • the regulating member 90 When a nonwoven fabric is used as the regulating member 90, it is possible to arrange fibers thereof to be oriented in the longitudinal direction Y. By arranging the fibers to be oriented in the longitudinal direction Y and the perforation 94 to extend in the longitudinal direction Y, it becomes possible to split the regulating member 90 easily along the splitting guide line 93.
  • the side panel 70 continuously extends from the rear end edge 15 to the crotch region 13 in the rear waist region 12, and the dimension from the front end edge 70a to the rear end edge 70b in the longitudinal direction Y is about 180 to about 300 mm. In a specific configuration of this embodiment, it is about 240 mm (refer to FIG.2).
  • the dimension of the rear waist region 12 in the longitudinal direction Y is about 260 to about 320 mm. In a specific configuration of this embodiment, it is about 281.8 mm.
  • the dimension of the front waist region 11 in the longitudinal direction Y is about 170 to about 240 mm. In a specific configuration of this embodiment, it is about 193.5 mm.
  • the dimension of the front and rear waist regions 11, 12 in the longitudinal direction Y is a distance from the front and rear end edges 14, 15 of the chassis 10 to a border with the crotch region 13 in which a dimension in the lateral direction X is small. Since the side panel 70 extends substantially across the entire dimension of the rear waist region 12 in the longitudinal direction Y, it is possible to keep the diaper 1 in close contact with the wearer not only in the waist opening formed by the front and rear end edges 14, 15, but also in the vicinities of the leg opening formed by the side edge 16 of the crotch region 13.
  • the side panel 70 may be engaged with the front waist region 11 over the entire dimension of the front waist region 11 in the longitudinal direction Y, thereby keeping the front waist region 11 in close contact with the wearer.
  • the side panel 70 may be disposed only on the side of the rear end edge 15 or on the side of the crotch region 13 in the rear waist region 12, or a plurality of side panels separated from each other in the longitudinal direction Y may be used.
  • the leg elastics 51 is attached in the crotch region 13 of the diaper 1 and the second end edge 51b thereof is located inboard of the side panel 70 in the lateral direction X. More specifically, as best seen in Fig.2, the second end edge 51b of the leg elastics 51 is positioned between a pair of side panels 70, and an imaginary extension line extending in the lateral direction X to connect front end edges 70a of the side panels 70 intersects with the leg elastics 51.
  • the second end edges 51b of the leg elastics 51 are also pulled outwardly in the lateral direction X together with the side panels 70, thereby the lateral edges 16 of the chassis 10 may be kept in close contact about the wearer's legs.
  • the waist elastics 52 extending in the lateral direction X along the rear end edge 15 are attached in the rear waist region 12 of the chassis 10. Therefore, even if the regulating member 90 is not split along the splitting guide line 93 and the elasticity do not appear in the side panels 70, the elasticity of the waist elastics 52 enables the waist opening of the diaper 1 to stay in close contact with the wearer. It is possible that the waist elastics 52 are attached at least in one of the front and rear waist regions 11, 12. While the splitting guide line 93 is formed by the series of perforations 94 in this embodiment, it is not limited to this configuration as long as the regulating member 90 may be split. For example, it is also possible that the regulating member 90 is melted by heat and/or pressure to be easier to split than other portions, or is decreased in the thickness dimension to be smaller than other portions, so as to be used as the splitting guide line 93.
  • the stretchable member 80 is configured to be elastically stretchable by attaching the thread, strand, or string side panel elastics 83 between the non-stretchable first and second sheets 81, 82.
  • this disclosure is not limited to this configuration.
  • a non-stretchable nonwoven fabric is used as the regulating member 90 in this embodiment, this disclosure is not limited to the non-stretchable nonwoven fabric as long as the elasticity thereof are lower than that of the stretchable member 80.
  • the stretchable member 80 does stretch, yet, the stretch/elongation thereof may be regulated (i.e., limited) to some extent.
  • the joining sections 91, 92 are formed of a hot melt adhesive in this embodiment, the regulating member 90 may also be joined to the stretchable member 80 by thermal welding of a heat seal, sonic seal, or the like.
  • a loop component or the like may be also separately attached in the front waist region 11.
  • a breathable plastic sheet or the like may be used as the backsheet 30.
  • the chassis 10 does not include the backsheet 30 and it is also possible to form the first fastening component in the leakage-barrier sheet 50.
  • a fastening component normally used to be developed in this technical field such as an adhesive tape or the like, may also be used as long as is engageable with the non-skin facing side of the front waist region 11.
  • a plastic sheet or the like may be used as the first fastening component, for example.
  • the leakage-barrier sheet 50 may be used as the first fastening component corresponding to the adhesive tape.
  • the first fastening component may be attached in a portion of the front waist region 11 or substantially over the entire front waist region 11.
  • a display element may be formed by illustrations, letters, or the like on a surface facing the regulating member 90 so that the display element may be visually recognized when the regulating member 90 is split along the splitting guide line 93.
  • the section of the second sheet 82 hidden by the regulating member 90 may be used as a display section. While the side panels 70 are disposed in the rear waist region 12 in this embodiment, it may also be disposed in the front waist region 11.
  • diaper 1 for adults is described as an example in this embodiment, it may also be applied to baby diapers as well.
  • the dimension of each constituent may be accordingly changed so as to fit the wearer.
  • FIG.6 is a cross-section view similar to Fig. 4 showing a side panel in accordance with the second embodiment. However, in FIG.6, the side panel 70 is enlarged and the absorbent structure 40 is omitted.
  • FIG.6(a) illustrates a state before the splitting guide line 93 is split and
  • FIG.6(b) illustrates a state after the splitting guide line 93 is split.
  • a non-stretchable nonwoven fabric is used to form the stretchable member 80. Since the other constituents are similar to those of the first embodiment, detailed descriptions thereof will be omitted.
  • the stretchable member 80 is joined to the regulating member 90 by relaxing (i.e., leaving slack in) a portion thereof in the lateral direction X between the joining sections 91, 92. Therefore, when the splitting guide line 93 of the regulating member 90 is split, it is possible to extend the stretchable member 80 only by the relaxed portion in the lateral direction X. Since the stretchable member 80 may be formed by a piece of sheet, the number of components may be reduced compared to a case in which other constituents are used. In the second embodiment, it is possible to use the stretchable member 80 which is elastically stretchable as described in the first embodiment.
  • FIGs. 7 to 9 are plan views similar to FIG. 5(a) illustrating variations of the splitting guide line 93.
  • the splitting guide line has a first splitting guide line 93a extending inwardly from the front end edge 90a of the regulating member 90 in the longitudinal direction Y, and a second slitting guide line 93b extending inwardly from the rear end edge 90b in the longitudinal direction Y.
  • the first and second splitting guide lines 93a, 93b extend substantially in parallel without intersecting or being aligned with each other. In the side panel 70 as described above, even if only either one of the first and second splitting guide lines 93a, 93b is split for use, there will be unlikely more ruptures inwardly in the longitudinal direction Y.
  • this variation may be used in the diaper 1 suitable to a case in which the side panel 70 is partially split in the longitudinal direction Y, while the remaining portion is kept without being split.
  • the first splitting guide line 93a is located inside the lateral direction X, while the second splitting guide line 93b is located outward in the lateral direction X; however, the present disclosure is not limited to this configuration.
  • the splitting guide line 93 is inclined from the rear end edge 90b to the front end edge 90a, i.e., toward the right bottom corner of the drawing. More specifically, the splitting guide line 93 is inclined relative to the longitudinal direction as if it intersects with the imaginary longitudinal center line P-P. According to the illustrated example in Fig. 8, it is inclined, as the splitting guide line 93 extends outwardly in the lateral direction X, toward the waist opening, in other words, toward the rear end edge 90b such that the dimension of the waist opening in the lateral direction X becomes larger when the splitting guide line 93 is split.
  • the waist opening may be readily expanded, thereby it may be suitably used for a wearer having a large waist relative to the buttocks, for example.
  • the splitting guide line 93 may be inclined from the rear end edge 90b to the front end edge 90a, i.e., toward the left bottom corner of the drawing. In such configuration, it may be suitably used for a wearer having large buttocks relative to the waist. The inclination direction and the inclination angle of the splitting guide line 93 may be accordingly changed.
  • the splitting guide line 93 in a wave or zigzag shape so as to alternately intersect with the imaginary longitudinal center line P-P. In such configuration, it becomes much easier to split the splitting guide line 93 halfway because it is not formed in a straight line. More specifically, when the regulating member 90 is split along the splitting guide line 93 formed in a straight line, it is difficult to stop splitting at a desired position and the splitting guide line 93 might be ruptured more than necessary and/or further ruptured while the diaper 1 is worn. However, by forming the splitting guide line 93 in a wave or zigzag shape, it is possible to prevent it from further being ruptured more than necessary.
  • a disposable wearing article having a longitudinal direction and lateral direction, the article including: a chassis including: a skin facing side and a non-skin facing side opposite thereto; first and second waist regions; and a crotch region located between the first and second waist regions, and a fastening system configured to connect the first and second waist regions to each other, the fastening system including: a first fastening component located on the first waist region; and a second fastening component engageable with the first fastening component and attached in one of a pair of side panels extending from the second waist region in the lateral direction, wherein: each side panel includes a stretchable member being stretchable in the lateral direction and a regulating member overlapping the stretchable member; the stretchable member is joined to the regulating member at a pair of joining sections, wherein the joining sections are spaced apart from each other in the lateral direction; and a splitting guide line formed on the regulating member between the joining sections and extending between a front end edge
  • the aspects described in the above item (i) may include at least the following embodiments, which may be taken in isolation or in combination with one another: (1)
  • the stretchable member is elastically stretchable in the lateral direction, and elasticity of the regulating member are lower than that of the stretchable member.
  • the splitting guide line is formed in a straight line between the front and rear end edges of the regulating member.
  • the splitting guide line includes a series of perforations extending in the longitudinal direction.
  • the stretchable member includes non-stretchable first and second sheets and elastics contractibly attached in a stretched state between the first and second sheets.
  • Each of the joining sections is formed in a region in which a contracting force of the elastics is not directly exerted.
  • the regulating member is formed of a non-stretchable sheet. (7) The regulating member is disposed on the non-skin facing side of the stretchable member. (8) Each of the perforations is a slit extending in the longitudinal direction. (9) A dimension of the side panel in the longitudinal direction is larger than a dimension of the first waist region in the longitudinal direction. (10) Leg elastics are contractibly attached in a stretched state in the longitudinal direction to the crotch region, the leg elastics include first end edges located on a side of the first waist region and second end edges located on a side of the second waist region, and the second end edges are located in the second waist region and inboard of the side panel in the lateral direction.
  • a force for splitting the splitting guide line at one of the front and rear end edges is greater than at the other of the front and rear end edges.
  • a non-woven fabric is used as the regulating member and has fibers oriented in the longitudinal direction.
  • the stretchable member includes a display element formed on the surface facing the regulating member to be visually recognized when the regulating member is split along the splitting guide line.
  • the splitting guide line includes a first splitting guide line extending inwardly from the front end edge of the regulating member in the longitudinal direction, and a second slitting guide line extending inwardly from the rear end edge in the longitudinal direction, and the first and second splitting guide lines extend without intersecting or being aligned with each other.
  • the disposable wearing article includes a chassis and side panels extending from the lateral edges of the chassis, each side panel includes a stretchable member and a regulating member overlapping the stretchable member, and a splitting guide line is formed in the regulating member.
  • the stretchable member may be stretchable in the lateral direction by splitting the regulating member along the splitting guide line, and the wearing article may be kept in close contact with the wearer by splitting the splitting guide line according to a body shape of the wearer.
  • the regulating member is split by the splitting guide line, the chassis will not be ruptured since the splitting guide line is formed in the side panel.

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

Abstract

L'invention concerne un article portable jetable dans lequel un châssis définissant des régions de taille avant et arrière et une région d'entre-jambe ne serait pas rompu. Une couche-culotte (1) comprend un châssis (10) ayant une région de taille avant (11) et une région de taille arrière (12) et une région d'entre-jambe (13) située entre les régions de taille avant et arrière (11, 12) et une paire de panneaux latéraux (70) attachés dans des bords latéraux (16) dans la région de taille arrière (12) du châssis (10). Le panneau latéral (7) comprend un élément étirable (8) qui peut être étiré dans la direction latérale (X) et un élément de régulation (90) chevauchant l'élément étirable (80). Dans l'élément de régulation (90) du panneau latéral (70), une ligne de guidage de division (93) s'étendant dans une direction longitudinale (Y) est définie par une série de perforations s'étendant dans la direction longitudinale (Y).
PCT/JP2012/005855 2011-09-16 2012-09-13 Article portable jetable WO2013038683A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2011203741A JP5906045B2 (ja) 2011-09-16 2011-09-16 使い捨て着用物品
JP2011-203741 2011-09-16

Publications (1)

Publication Number Publication Date
WO2013038683A1 true WO2013038683A1 (fr) 2013-03-21

Family

ID=47882932

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2012/005855 WO2013038683A1 (fr) 2011-09-16 2012-09-13 Article portable jetable

Country Status (2)

Country Link
JP (1) JP5906045B2 (fr)
WO (1) WO2013038683A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10010645B2 (en) 2013-05-03 2018-07-03 The Procter & Gamble Company Absorbent articles comprising stretch laminates

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104958142B (zh) * 2015-07-23 2018-04-03 杭州可靠护理用品股份有限公司 一种一次性成人纸尿裤

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60215803A (ja) * 1984-04-04 1985-10-29 花王株式会社 つかいすておむつのテ−プフアスナ−
US6463633B1 (en) * 2001-05-14 2002-10-15 Avery Dennison Corporation Stretchable tape
JP2005522273A (ja) * 2002-04-12 2005-07-28 スリーエム イノベイティブ プロパティズ カンパニー 弾性クロージャタブ

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60215803A (ja) * 1984-04-04 1985-10-29 花王株式会社 つかいすておむつのテ−プフアスナ−
US6463633B1 (en) * 2001-05-14 2002-10-15 Avery Dennison Corporation Stretchable tape
JP2005522273A (ja) * 2002-04-12 2005-07-28 スリーエム イノベイティブ プロパティズ カンパニー 弾性クロージャタブ

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10010645B2 (en) 2013-05-03 2018-07-03 The Procter & Gamble Company Absorbent articles comprising stretch laminates

Also Published As

Publication number Publication date
JP2013063184A (ja) 2013-04-11
JP5906045B2 (ja) 2016-04-20

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