CN104837448A - Absorbent article - Google Patents

Absorbent article Download PDF

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Publication number
CN104837448A
CN104837448A CN201380063099.3A CN201380063099A CN104837448A CN 104837448 A CN104837448 A CN 104837448A CN 201380063099 A CN201380063099 A CN 201380063099A CN 104837448 A CN104837448 A CN 104837448A
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CN
China
Prior art keywords
mentioned
width
absorber
elastic component
exterior
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
CN201380063099.3A
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Chinese (zh)
Other versions
CN104837448B (en
Inventor
市川诚
川上祐介
多川信弘
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Unicharm Corp
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Unicharm Corp
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Filing date
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Publication of CN104837448A publication Critical patent/CN104837448A/en
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Publication of CN104837448B publication Critical patent/CN104837448B/en
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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/45—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape
    • A61F13/49—Absorbent articles specially adapted to be worn around the waist, e.g. diapers
    • A61F13/49007—Form-fitting, self-adjusting disposable diapers
    • A61F13/49009—Form-fitting, self-adjusting disposable diapers with elastic means
    • A61F13/49017—Form-fitting, self-adjusting disposable diapers with elastic means the elastic means being located at 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
    • A61F13/49019—Form-fitting, self-adjusting disposable diapers with elastic means the elastic means being placed longitudinally, transversely or diagonally over the article
    • 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
    • A61F13/494—Absorbent articles specially adapted to be worn around the waist, e.g. diapers characterised by edge leakage prevention means
    • A61F13/49406—Absorbent articles specially adapted to be worn around the waist, e.g. diapers characterised by edge leakage prevention means the edge leakage prevention means being at the crotch region
    • A61F13/49413—Absorbent articles specially adapted to be worn around the waist, e.g. diapers characterised by edge leakage prevention means the edge leakage prevention means being at the crotch region the edge leakage prevention means being an upstanding barrier

Abstract

Provided is an absorbent article which can be manufactured by a simple manufacturing process and which makes it possible for a wearer to raise the leg-side gather. This absorbent article (1) is provided with an absorbent body (40) having wide parts (41) positioned at both ends of the absorbent article in the length direction, and narrow parts (42) positioned more inwards in the length direction than the wide parts. Part of leg-side elastic members (33) is arranged further outside in the width direction than the narrow parts of the absorbent body. An absorbent main body and an exterior body are bonded further inwards in the width direction than the outside edge in the width direction of the wide parts, and in the outside edge in the width direction of the narrow parts of the absorbent body. The exterior body is provided with leg-encircling rear elastic members (5R) which are arranged across the outside edges in the width direction of the narrow part and which causes to contract in the width direction the region where the exterior body and the absorbent main body are bonded.

Description

Absorbent commodity
Technical field
The present invention relates to a kind of absorbent commodity with lower limb side wrinkle, these lower limb side wrinkle are configured in inside width compared with leg-openings portion, stretch in the longitudinal direction at the width sidepiece of absorber.
Background technology
Patent Document 1 discloses a kind of absorbent commodity being provided with lower limb side wrinkle, these lower limb side wrinkle stretch in the longitudinal direction compared with leg-openings portion inside width.Lower limb side wrinkle are made up of the body panel of extending outside width compared with absorber and the elastic component be fixed in body panel.Lower limb side wrinkle are configured to by elastic member contracts, at the sidepiece of absorber to edge-on of wearer.
Prior art document
Patent documentation
Patent documentation 1: Japan Patent No. 3187110 publication
Summary of the invention
But, in the absorbent commodity of patent documentation 1, there is following problem points.
The absorber of patent documentation 1 is hourglass shape when overlooking.The width of absorber is the narrowest in fore-and-aft direction central authorities, broadens towards fore-and-aft direction end from front and back towards central authorities.That is, the shape of the width outboard end of absorber be along with from fore-and-aft direction central authorities outside fore-and-aft direction in the width direction inner side towards the curve shape outside width.On the other hand, the elastic component forming lower limb side wrinkle is the rectilinear form configured along the longitudinal direction.
Therefore, the distance of absorber and lower limb side wrinkle on the fore-and-aft direction of absorber not necessarily, the height change to edge-on of wearer of lower limb side wrinkle.In addition, because the leg wrinkle being in the fore-and-aft direction central authorities of absorber enclose configuration, so the distance of absorber and lower limb side wrinkle easily reduces along the lower limb of wearer.But in the part that the lower limb not touching wearer encloses, the distance of absorber and leg wrinkle is difficult to reduce, be sometimes difficult to edge-on of wearer.When leg wrinkle are deficiently to edge-on of wearer, there is horizontal problem of leaking generation.
In addition, the elongation change of the elastic component making formation lower limb side wrinkle can be considered, the height erected of lower limb side wrinkle is adjusted.But, when the expansion and contraction change that will make elastic component, need to carry out fine adjustment in manufacturing process, there is the problem that manufacturing process is complicated.
Therefore, the object of the present invention is to provide one to manufacture by easy manufacturing process, lower limb side wrinkle can be made easily to the absorbent commodity of edge-on of wearer.
Absorbent commodity of the present invention possesses absorbent main body and exterior body, and possesses territory, crotch zone, front torso area and rear torso area; This absorbent main body has absorber, this absorber has on front side of the health of wearer and the fore-and-aft direction extended on rear side of health, the width orthogonal with above-mentioned fore-and-aft direction, outer direction towards direction in above-mentioned wearer and the opposition side towards above-mentioned interior direction; This exterior body is configured in outer direction compared with above-mentioned absorbent main body; This territory, crotch zone is attached on the crotch part of above-mentioned wearer; This front torso area is configured in the front in territory, above-mentioned crotch zone; This rear torso area is configured in the rear in territory, above-mentioned crotch zone; Will being intended to of this absorbent commodity, above-mentioned absorbent main body possesses the lower limb side wrinkle of erecting, and the lower limb side wrinkle of this erecting have along the flexible lower limb side elastic component of above-mentioned fore-and-aft direction; The large width portion that above-mentioned absorber has above-mentioned fore-and-aft direction both ends being positioned at above-mentioned absorber be in position to the inside, compared with above-mentioned large width portion forward rear and the length of the width of the above-mentioned absorber narrow width portion shorter than above-mentioned large width portion; A part for above-mentioned side pincher elasticity component is configured in outside above-mentioned width compared with the above-mentioned narrow width portion of above-mentioned absorber; Above-mentioned exterior body and above-mentioned absorbent main body compared with the width outboard end of the above-mentioned large width portion with above-mentioned absorber by engaging in the width outboard end of the above-mentioned narrow width portion of above-mentioned absorber inside width; Above-mentioned exterior body possesses the above-mentioned width outboard end configuration of the above-mentioned narrow width portion of crossing over above-mentioned absorber, and, make the region engaging above-mentioned exterior body and above-mentioned absorbent main body on above-mentioned width, carry out the exterior elastic component shunk.
Accompanying drawing explanation
Fig. 1 is the approximate three-dimensional map of the disposable diaper of embodiment 1.
Fig. 2 is the expansion top view of the disposable diaper of embodiment 1.
Fig. 3 is the width sectional view of the disposable diaper along X1-X ' 1 line shown in Fig. 2.
Fig. 4 is the width sectional view of the disposable diaper along X2-X ' 2 line shown in Fig. 2.
Fig. 5 is the figure of the deformation state for illustration of lower limb side wrinkle.
Detailed description of the invention
Next, be described with reference to the disposable diaper 1 of accompanying drawing to the absorbent commodity as embodiment.In addition, in the record of following figure, the Reference numeral same or similar to same or similar part mark.But it should be noted that figure is schematic figure, ratio of the ratio of each size etc. and each size of reality etc. is different.Therefore, concrete size etc. should judge with reference to the following description.In addition, the different part of the relation of mutual size, ratio may also be comprised each other at figure.
First, based on Fig. 1 to Fig. 4, the overall structure of the disposable diaper as absorbent commodity is described.Fig. 1 is the approximate three-dimensional map of the disposable diaper 1 forming disposable diaper in the present embodiment.Fig. 2 is the expansion top view of the disposable diaper 1 of present embodiment.Fig. 3 is the width sectional view of the disposable diaper 1 along X1-X ' 1 line shown in Fig. 2.Fig. 4 is the width sectional view of the disposable diaper 1 along X2-X ' 2 line shown in Fig. 2.Disposable diaper 1 is the disposable diaper of pants type.
Disposable diaper 1 has: the fore-and-aft direction L extended on front side of the health of wearer and on rear side of health; With the width W of fore-and-aft direction L-orthogonal; With there is direction IN and the thickness direction towards the outer direction OUT with opposition side, interior direction in wearer.
Disposable diaper 1 as shown in Figure 2, territory, the crotch zone S3 under the crotch that the fore-and-aft direction of disposable diaper 1 has the Attacking Midfielder front torso area S1 being with it attached to wearer, the low back being attached to wearer rear torso area S2 with it and is attached to wearer, between front torso area S1 and rear torso area S2.
Front waist edge 4 outside the width W being positioned at front torso area S1 engages with the rear waist edge 6 in outside of the width W being positioned at rear torso area S2, and front waist edge 4 ' engages with rear waist edge 6 ', accordingly, disposable diaper 1 is formed as pants type.Form at the front torso area of the disposable diaper of pants type and rear torso area the junction surface 11 that mutual edge engages, territory, crotch zone S3 is region to the inside, forward rear compared with junction surface 11.
At disposable diaper 1, as shown in Figure 1, the waistline peristome 8 that the waistline defining encirclement wearer under the state being formed as pants type is configured and the lower limb surrounding wearer enclose the pair of leg be configured and enclose peristome 9.
Disposable diaper 1 is made up of surface patch 10, the absorbent main body 1A comprising absorber 40 and absorber back sheet 30 etc. and the exterior body 1B that comprises the outer load 70R etc. of the outer load 70F in front side, rear side, and they utilize the joint such as bonding agent, hot melt mutually.
Exterior body 1B comprise the outer load 70F in front side crossing over front torso area and territory, crotch zone and be configured, the outer load 70R of rear side crossing over rear torso area and the configuration of territory, crotch zone and in the past waist area configurations to the exterior centre slice 100 of rear torso area, the exterior part of formation disposable diaper 1.Exterior body 1B is positioned at outer direction OUT compared with comprising the absorbent main body 1A of absorber 40, and the non-skin being configured in disposable diaper abuts the face of side.
Front side outer load 70F leap front torso area S1 and territory, crotch zone S3 is configured, disposable diaper anterior end by with folding line in the width direction for basic point inward direction turns back.Outside front side load 70F the sheet be folded back between configure exterior centre slice 100.Rear side outer load 70R leap rear torso area S2 and territory, crotch zone S3 is configured, disposable diaper rear end by with folding line in the width direction for basic point inward direction turns back.Exterior centre slice 100 is configured between the sheet be folded back of the outer load 70R of rear side.
The outer load 70F in front side and the outer load 70R of rear side can be formed by gas bonded non-woven fabrics, spun-bonded non-woven fabrics, SMS non-woven fabrics, waterproofing membrane etc.Outside the front side of present embodiment, load 70F and the outer load 70R of rear side utilizes the weight per unit area 20g/m be made up of polypropylene 2spun-bonded non-woven fabrics formed.
Exterior centre slice 100 connects the outer load 70F in front side and the outer load 70R of rear side.Therefore, can prevent absorbent main body 1A from exposing under the form that load and the outer load of rear side separate in the longitudinal direction outside front side.Further, in the fabrication process, leg-openings portion can be formed under the state that the front side exterior body separated and rear side exterior body are linked, or bond with absorbent main body 1A.
Exterior centre slice 100 can be formed by gas bonded non-woven fabrics, spun-bonded non-woven fabrics, SMS non-woven fabrics, waterproofing membrane etc.The exterior centre slice 100 of present embodiment utilizes the weight per unit area 15g/m be made up of polypropylene 2sMS non-woven fabrics formed.
Absorbent main body 1A comprises surface patch 10, absorber back sheet and lower limb side wrinkle, and is configured in by wearer side compared with exterior body 1B.
Surface patch 10 is the sheets forming the skin abutment face that directly can contact with the skin of wearer.Surface patch 10 is configured in by skin abutment face side compared with absorber 40.Surface patch 10 is formed by the sheet of the liquid permeability such as hydrophilic non-woven, yarn fabric, opening plastic sheeting, opening hydrophobic nonwoven.The surface patch 10 of present embodiment utilizes the weight per unit area 20g/m be made up of polypropylene 2hydrophilic spun-bonded non-woven fabrics formed.Extend to width both sides compared with the face that surface patch 10 and the skin of absorber 40 abut side, cover the width outboard end of absorber, arrive the non-skin abutment face side of absorber.
Also second can be arranged in the non-skin abutment face side of surface patch 10.By arranging second, the infiltration rate of body fluid can be made to accelerate, and can the returning of body fluid after absorption be suppressed.
Absorber 40 utilizes heat molten type bonding agent to engage between surface patch 10 with absorber back sheet 30.Heat molten type bonding agent is spread upon on composite sheet and back sheet respectively, such as, pass through spiral smearing method respectively with weight per unit area 5g/m 2, 8g/m 2coating.
Absorber 40 is formed by the mixed powder of comminution pulp, superabsorbent polymer etc.When overlooking, the shape of absorber 40 is general hourglass shapes.
Absorber 40 has large width portion 41 and narrow width portion 42.Large width portion 41 is positioned at the fore-and-aft direction both ends of absorbent core.Narrow width portion 42 is in by the position inside width compared with large width portion 41, and the length of the width of absorber is shorter than large width portion.In fig. 2, mark a chain-dotted line in large width portion 41 with the border of narrow width portion 42 to represent.
In addition, as long as the region that the width that large width portion 41 comprises absorber is the longest, its concept is, during the region that the width that there is absorber 40 laterally when forward rear compared with the widest region of the width with absorber shortens, this region is also contained in large width portion.As long as the region that the width that narrow width portion 42 comprises absorber is the shortest, its concept is the region that the width being also contained in compared with large width portion forward rear absorber to the inside shortens gradually.
Absorber back sheet 30 is arranged at the non-skin abutment face side of absorber 40.Absorber back sheet 30 is formed by the sheet of (such as polyethylene) such as liquid impermeability thin film.Absorber back sheet 30 is configured in outer direction OUT compared with absorber, and is liquid impermeability.Absorber back sheet 30 compared with absorber 40 in front-rear direction outside configure with extending.
Lower limb side wrinkle are wrinkle of erecting.Lower limb side wrinkle have leakproof lateral plate 32 and side pincher elasticity component.Side pincher elasticity component has elastic component 34 under lower limb side elastic component 33 and crotch.Configure along the longitudinal direction in the width end of absorber 40.Leakproof lateral plate 32 is configured in the two side ends of the width W of absorber 40.Leakproof lateral plate 32 is formed by the sheet of the non-woven fabrics etc. of liquid impermeability.The surface patch turned back in end and the non-skin abutment face side to absorber of one side of the width of leakproof lateral plate 32 engages, turning back from the width sidepiece of absorber 40 to surface patch side in the end of the opposing party of the width of leakproof lateral plate 32, engages with the face of the skin abutment face side of surface patch 10.
Leakproof lateral plate 32 utilizes the joints such as PUR bonding agent and surface patch at the fore-and-aft direction both ends of absorbent main body 1A.Leakproof lateral plate 32 absorbent main body 1A fore-and-aft direction central part not with the joints such as surface patch, but to configure to wearer is edge-on from surface patch.Cross section shown in Fig. 2, lower limb side wrinkle do not engage with surface patch, but configure to wearer is edge-on from surface patch.Cross section shown in Fig. 3, although lower limb side wrinkle do not engage with surface patch, lower limb side wrinkle configure along surface patch 10.Cross section shown in Fig. 3, lower limb side wrinkle, by the pushing such as buttocks of wearer, configure along surface patch 10.
Lower limb side elastic component 33 is configured between the leakproof lateral plate 32 that turns back.Lower limb side elastic component respectively configures 2 along the longitudinal direction at the width medial end of the leakproof lateral plate 32 configured with being divided right and left.Being configured in outside width compared with the narrow width portion 42 of absorber at least partially of lower limb side elastic component 33.Shunk in the longitudinal direction by lower limb side elastic component, lower limb side wrinkle are to edge-on of wearer.About the contraction state of these lower limb side wrinkle, be described in detail later.
Under crotch, elastic component 34 is configured between the leakproof lateral plate 32 that turns back.Under crotch, elastic component 34 is in by the position outside width compared with lower limb side elastic component 33, respectively configures 2 along the longitudinal direction.
The lower limb side elastic component 33 of present embodiment respectively to extend in left and right with the thickness of 620dtex, the elongation multiplying power of 3.0 times fixes 2.Under crotch, elastic component 34 respectively to extend in left and right with the thickness of 470dtex, the elongation multiplying power of 2.7 times and fixes 2.
At front torso area S1 and rear torso area S2, waist wrinkle 3 and waist wrinkle 7 are set.Waist wrinkle 3 and waist wrinkle 7 have the elongated waist elastic members 3A and waist elastic component 7A that are arranged to synthetic rubber that the width W along absorber 40 stretches etc.Bonding agent (such as PUR bonding agent) is utilized to be bonded between the outer load 70F in front side and exterior centre slice 100 under the state that waist elastic members 3A and waist elastic component 7A has extended at the width W relative to disposable diaper 1 and rear side outward between load 70R and exterior centre slice 100.
Waist wrinkle 3 and waist wrinkle 7 are continuous from waist edge 4 ' before waist edge 4 to the opposing party before the side being positioned at outside width W of the absorbent commodity 1 front torso area S1, and the rear waist edge 6 ' from the rear waist edge 6 being positioned at the side outside width W of the absorbent commodity 1 rear torso area S2 to the opposing party is continuous.
Leg wrinkle 5 are set around leg-openings portion 9.Leg wrinkle enclose elastic component by the spindlelegs being arranged to flexible synthetic rubber etc. and are formed.Lower limb encloses elastic component and encloses elastic component 5F and back leg by foreleg and enclose elastic component 5R and form.Foreleg encloses elastic component 5F leap front torso area S1 and territory, crotch zone S3 and configures.Back leg encloses elastic component 5R leap rear torso area S2 and territory, crotch zone S3 and configures.
Back leg enclose line part 52 that elastic component 5R has a linearity extended in the direction of the width with to be in compared with line part 52 by the position outside width two and in the width direction inner side outside width from as the front side inside fore-and-aft direction towards the curvilinear curve part 53 extended as the rear side outside fore-and-aft direction.Line part 52 is along waist elastomeric member configuration.Curve part 53 configures along leg-openings portion 9.
The line part 52 that back leg encloses elastic component 5R is stacked with the mode and absorber of crossing the width outboard end of the narrow width portion 42 of absorber.In addition, the state that the width outboard end of line part 52 and narrow width portion 42 is stacked refers to following concept, the width outboard end that this concept not only comprises line part 52 and narrow width portion 42 with the stacked state of the state contacted, but also comprises state stacked across other component of exterior centre slice 100 grade as in the embodiment.Back leg encloses elastic component 5R and forms exterior elastic component of the present invention.
Compared with the width outboard end of large width portion 41 by inside width and by outside width compared with the width outboard end of narrow width portion, arrange and enclose by the back leg as exterior elastic component the constriction zone R1 that elastic component 5R carries out shrinking in the direction of the width.Constriction zone R1 be configured with in the region of absorbent main body 1A, carry out the region of shrinking in the direction of the width at the line part 52 by enclosing elastic component 5R by back leg outside width compared with the width outboard end of narrow width portion.
Exterior body 1B and absorbent main body 2A compared with the width outboard end of the large width portion with absorber by being engaged inside width and in the width outboard end of the narrow width portion of absorber.This engaged region is the constriction zone R1 shown in Fig. 2.More particularly, the leakproof lateral plate 32 of absorbent main body and absorber back sheet 30 are engaged with exterior centre slice 100.In the present embodiment, undertaken bonding by heat molten type bonding agent.In Fig. 3 and Fig. 4, diagram is coated with the bonding region 90 of heat molten type bonding agent.
Back leg as exterior elastic component encloses the width outboard end configuration that elastic component 5R crosses over the narrow width portion 42 of absorber 40, and the region be configured to exterior body and absorbent main body are engaged is shunk.
Because configuring back leg encloses elastic component 5R with crossing over the width both ends of narrow width portion 42, so, can shrink in the direction of the width exterior body 1B by the region outside width with narrow width portion 42.In this constriction zone R1, exterior body 1B and absorbent main body 1A is engaged.Therefore, along with the contraction of exterior body 1B, shrink by the constriction zone R1 outside width compared with the narrow width portion 42 of absorbent main body 1A.
Fig. 5 is the figure of the deformation state for illustration of lower limb side wrinkle.In the sectional view of Fig. 3, be the figure schematically illustrating the state that the line part that encloses elastic component 5R by back leg makes constriction zone R1 shrink.Fig. 5 (a) represents and encloses state before elastic component 5R shrinks in the direction of the width by back leg, and Fig. 5 (b) represents and encloses by back leg the state that elastic component 5R shrinks in the direction of the width.
Lower limb side elastic component 33 is configured in the width end of absorber 40.Lower limb side elastic component 33 shrink before state (state that lower limb side elastic component 33 has extended) under, compared with narrow width portion 42 by the area configurations side pincher elasticity component outside width at least partially.Therefore, along with the contraction of exterior body 1B, by shrinking by the constriction zone R1 outside width compared with the narrow width portion 42 of absorbent main body 1A, the distance being positioned at the width outboard end by the side pincher elasticity component outside width and narrow width portion 42 compared with narrow width portion is close.Because shrink in the direction of the width by the region outside width compared with narrow width portion 42, so, be positioned at and lifted by wearer side by the side pincher elasticity component outside width compared with narrow width portion, become and easily erect.Therefore, lower limb side wrinkle can be made easily to edge-on of wearer.
Lower limb side wrinkle because the lower limb of wearer encloses touch, so the part the narrowest at the width of absorber the most easily erects.But lower limb side wrinkle are difficult to erect along with the part that the width from this absorber is the narrowest departs from front-rear direction and becomes.Particularly at dorsal part, by the buttocks of wearer, lower limb side wrinkle are flattened, become and be difficult to lower limb side wrinkle are erected.But, easily erected by the lower limb side wrinkle near the narrow width portion that to make to be in compared with the part the narrowest with the width of absorber position rearward, the raised state of the lower limb side wrinkle of the part that the width that can make to be in absorber is the narrowest is close with the raised state of the lower limb side wrinkle being in dorsal part, can make erecting close to sustained height of lower limb side wrinkle.
In addition, because elastic component 5R can be enclosed by back leg, exterior body is shunk in the direction of the width, lower limb side wrinkle are erected, so, do not need, in order to the percentage elongation making the elongation change of the side pincher elasticity component of formation lower limb side wrinkle partly change side pincher elasticity component, to be manufactured by easy manufacturing process.In addition, the percentage elongation of each side pincher elasticity component of present embodiment is roughly certain in the longitudinal direction.
In addition, in the present embodiment, although the back leg being configured to the position by being in waist area side rearward compared with the fore-and-aft direction center of absorbent commodity enclosing elastic component and shrinking constriction zone, also can be configured to enclose elastic component by the foreleg of the position being in forward waist area side compared with the fore-and-aft direction center of absorbent commodity and constriction zone is shunk.
But because particularly the lower limb side wrinkle of buttocks side are particularly pushed by buttocks when lying posture gesture, lower limb side wrinkle become and are difficult to erect sometimes, so, this structure can be used suitably.
Back leg encloses elastic component 5R and has the overlapping portion 43 configured and the non-overlapping portion 44 be in by the position outside width compared with narrow width portion 42 stackedly with narrow width portion 42, and the percentage elongation of non-overlapping portion 44 is higher than the percentage elongation of overlapping portion 43.Specifically, the percentage elongation that back leg encloses the overlapping portion 43 of elastic component 5R is 1.4 times, and the percentage elongation that back leg encloses the non-overlapping portion 44 of elastic component 5R is 2.3 times.
Because set high by being in the percentage elongation enclosing elastic component 5R by the back leg of the non-overlapping portion 44 outside width compared with narrow width portion 42, so, can compared with narrow width portion 42 by making lower limb side wrinkle erect outside width, and can compared with narrow width portion 42 by making exterior body 1B and wearer be adjacent to outside width, reduce the gap of wearer and disposable diaper.In addition, with narrow width portion 42 stacked the back leg of overlapping portion 43 that configures enclose the percentage elongation of elastic component 5R too high time, there is absorber because back leg encloses the contractility of elastic component 5R and the problem of being out of shape.But, by by with narrow width portion 42 stacked the back leg of overlapping portion 43 that the configures percentage elongation that encloses elastic component 5R set low, can the distortion, twisted of decrease uptake body.
The width outboard end that back leg as exterior elastic component encloses elastic component 5R and narrow width portion is spent with roughly 90 and is intersected.That is, when overlooking shown in Fig. 2, the angle that the width outboard end that back leg encloses elastic component 5R and narrow width portion is formed roughly 90 to spend.In addition, roughly 90 degree refer to is not only 90 degree, and is included in from 90 degree of-5 degree in the scope of 90 degree of+5 degree, is namely included in the scope of 85 degree to 95 degree.
Such as, when the angle that the width outboard end that back leg encloses elastic component 5R and narrow width portion is formed is the acute angles such as 30 degree, the contractility that back leg encloses elastic component 5R is difficult to act in the direction of the width, sometimes becomes and is difficult to make constriction zone shrink in the direction of the width to make lower limb side wrinkle to edge-on of wearer.But, the angle that the width outboard end that back leg encloses elastic component 5R and narrow width portion is formed be roughly 90 spend time, because the contractility that back leg encloses elastic component 5R easily acts in the direction of the width, so, become and easily make constriction zone shrink in the direction of the width to make lower limb side wrinkle to edge-on of wearer.
Surface patch 10 covers the width outboard end of absorber 40, and extends to the non-skin abutment face side of absorber, and surface patch 10 engages with the sheet material forming exterior body 1B or absorbent main body in the non-skin abutment face side of absorber 40.In the present embodiment, surface patch 10 engages with the exterior centre slice 100 forming exterior body 1B through the bonding region 90 of heat molten type bonding agent in the non-skin abutment face side of absorber 40.
Because surface patch covers the end of absorber 40, and engaged in the non-skin abutment face side of absorber, so, the rigidity of the end of absorber can be improved.Lower limb side wrinkle are configured to erect relative to absorber, by improving the rigidity of absorber, can improve the rigidity erecting basic point, lower limb side wrinkle are easily erected.
The curve part 53 that back leg encloses elastic component 5R is configured in outside width compared with absorber 40.The curve part 53 that back leg encloses elastic component 5R is configured to not stacked with absorber in a thickness direction.The percentage elongation that back leg encloses the curve part 53 of elastic component 5R encloses the line part 52 of elastic component 5R percentage elongation than back leg is high.Specifically, the percentage elongation of line part is 1.2 ~ 1.6 times, and the percentage elongation of curve part is 2.1 ~ 2.5 times.
In addition, percentage elongation in present embodiment is the percentage elongation under the elongation state of the elongation of instigating disposable diaper.In addition, percentage elongation is such as measured by following method.
Fixed product under the state of having extended making elastic component, measures (this size is set to I) the size of line part (between both ends, insied width direction) and curve part (from locking inner side to both ends, above-mentioned insied width direction).After the line part that mark is arranged at above-mentioned record and curve part, at elastic-member portions, product is cut.After fully by attachment removings such as PURs, with ruler, size is measured (this size is set to II) under the state that the elastic component of non-elongate state is placed as the crow flies.Using the value of calculation of I/II as percentage elongation.
In addition, the back leg that elongation state refers to as the 1st elastic component encloses elastic component 5R and encloses as the foreleg of the 2nd elastic component the state that elastic component 5F extended, and specifically, is the state be contained in by disposable diaper on the cylinder of regulation.
The size of cylinder can set as follows.First, prepare as the exterior body forming disposable diaper, the exterior body of the state that do not configure front elastic component and rear elastic component.To do not configure this elastic component state exterior body anterior end side engagement portion 11 between distance measure.Distance between the side engagement portion 11 of the anterior end of this exterior body is set to L11.In addition, to do not configure elastic component state exterior body rear end side engagement portion 11 between distance measure.Distance between the side engagement portion 11 of the rear end of exterior body is set to L12.Further, the size of the fore-and-aft direction of front torso area is measured, this size is set to L13.The size of the fore-and-aft direction of rear torso area is measured, this size is set to L14.
Distance L12 between the side engagement portion 11 of the rear end of the distance L11 between the side engagement portion 11 of the anterior end of exterior body and exterior body is added up to, calculates this combined length × 0.8.The value calculated is set to X.The length of the periphery of cylinder is set to X.If the length of the axis of cylinder is L13 and more than L14.
In addition, each component forming above-mentioned disposable diaper 1 such as also can use the material being described in Japanese Unexamined Patent Publication 2006-346439 publication.
Although disclose content of the present invention by embodiments of the present invention as described above, forming the discussion of a part for this disclosure and figure, not should be understood to be the content limited the present invention.According to this disclosure, those skilled in the art understands various alternate embodiments, embodiment and application technology.
Such as, in the above-described embodiment, although be illustrated as the disposable diaper of pants type, the present invention is not limited thereto, also can be pants type sanitary towel.
Although enumerate back leg as exterior elastic component to enclose elastic component and be illustrated under above-mentioned embodiment, the exterior elastic component in the present invention can in other the elastic component application such as waist elastic component.
Like this, the present invention is included in the various embodiments etc. do not recorded certainly here.Therefore, by the invention of suitable claim, the scope of technology of the present invention only determines that item determined according to above-mentioned explanation.
In addition, the full content of No. 2012-264208th, Japanese patent application (December was filed an application on the 3rd in 2012) is by referring to being included in present specification.
Industry utilizes probability
According to present disclosure, can provide a kind of and can be undertaken manufacturing by easy manufacturing process, lower limb side wrinkle can be made easily edge-on to wearer absorbent commodity.
Symbol description:
1 disposable diaper (absorbent commodity)
3 waist wrinkle
3A waist elastic members
5 leg wrinkle
5F foreleg encloses elastic component
5R back leg encloses elastic component
7 waist wrinkle
7A waist elastic component
10 surface patch
30 absorber back sheets
32 leakproof lateral plates
33 lower limb side elastic components
40 absorbers
43 overlapping portions
44 non-overlapping portions
52 line parts
53 curve parts
Outer load on front side of 70F
Outer load on rear side of 70R
100 exterior centre slices
S1 front torso area
S2 rear torso area
Territory, S3 crotch zone
R1 constriction zone.

Claims (6)

1. an absorbent commodity, possesses absorbent main body and exterior body, and possesses territory, crotch zone, front torso area and rear torso area; This absorbent main body has absorber, this absorber has on front side of the health of wearer and the fore-and-aft direction extended on rear side of health, the width orthogonal with above-mentioned fore-and-aft direction, outer direction towards direction in above-mentioned wearer and the opposition side towards above-mentioned interior direction; This exterior body is configured in outer direction compared with above-mentioned absorbent main body;
This territory, crotch zone is attached on the crotch part of above-mentioned wearer; This front torso area is configured in the front in territory, above-mentioned crotch zone; This rear torso area is configured in the rear in territory, above-mentioned crotch zone;
The feature of above-mentioned absorbent commodity is,
Above-mentioned absorbent main body possesses the lower limb side wrinkle of erecting, and the lower limb side wrinkle of this erecting have along the flexible side pincher elasticity component of above-mentioned fore-and-aft direction;
The large width portion that above-mentioned absorber has above-mentioned fore-and-aft direction both ends being positioned at above-mentioned absorber be in position to the inside, compared with above-mentioned large width portion forward rear and the length of the width of the above-mentioned absorber narrow width portion shorter than above-mentioned large width portion;
A part for above-mentioned side pincher elasticity component is configured in outside above-mentioned width compared with the above-mentioned narrow width portion of above-mentioned absorber;
Above-mentioned absorbent main body and above-mentioned exterior body compared with the width outboard end of the above-mentioned large width portion with above-mentioned absorber by engaging in the width outboard end of the above-mentioned narrow width portion of above-mentioned absorber inside width;
Above-mentioned exterior body possesses the above-mentioned width outboard end configuration of the above-mentioned narrow width portion of crossing over above-mentioned absorber, and, make the region engaging above-mentioned exterior body and above-mentioned absorbent main body on above-mentioned width, carry out the exterior elastic component shunk.
2. absorbent commodity according to claim 1, is characterized in that, above-mentioned exterior elastic component is configured in rear torso area side compared with the above-mentioned fore-and-aft direction center of above-mentioned absorbent commodity.
3. absorbent commodity according to claim 1 and 2, is characterized in that, above-mentioned exterior elastic component has the overlapping portion configured and the non-overlapping portion be in by the position outside width compared with above-mentioned narrow width portion stackedly with above-mentioned narrow width portion;
The percentage elongation of above-mentioned non-overlapping portion is higher than the percentage elongation of above-mentioned overlapping portion.
4. absorbent commodity according to any one of claim 1 to 3, is characterized in that, the above-mentioned width outboard end of above-mentioned exterior elastic component and above-mentioned narrow width portion is spent with roughly 90 and intersected.
5. absorbent commodity according to any one of claim 1 to 4, is characterized in that, at the skin abutment face side allocation list dough sheet of above-mentioned absorber;
Above-mentioned surface patch covers the width outboard end of above-mentioned absorber, and the non-skin abutment face side to above-mentioned absorber is extended;
Above-mentioned surface patch engages with the sheet material forming above-mentioned exterior body or above-mentioned absorbent main body in the non-skin abutment face side of above-mentioned absorber.
6. absorbent commodity according to any one of claim 1 to 5, is characterized in that, the lower limb that above-mentioned exterior elastic component is formed along the configuration of above-mentioned leg-openings portion encloses elastic component.
CN201380063099.3A 2012-12-03 2013-12-02 Absorbent commodity Active CN104837448B (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2012-264208 2012-12-03
JP2012264208A JP5822818B2 (en) 2012-12-03 2012-12-03 Absorbent articles
PCT/JP2013/082360 WO2014087969A1 (en) 2012-12-03 2013-12-02 Absorbent article

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CN108697539A (en) * 2016-01-29 2018-10-23 尤妮佳股份有限公司 Absorbent commodity
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CN111134966A (en) * 2019-04-17 2020-05-12 贵州卡布婴童用品有限责任公司 Trousers-shaped paper diaper with urine leakage prevention function and manufacturing process and equipment thereof

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JP2014108270A (en) 2014-06-12
JP5822818B2 (en) 2015-11-24
WO2014087969A1 (en) 2014-06-12

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