CN104271093B - Disposable diaper - Google Patents

Disposable diaper Download PDF

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Publication number
CN104271093B
CN104271093B CN201380022397.8A CN201380022397A CN104271093B CN 104271093 B CN104271093 B CN 104271093B CN 201380022397 A CN201380022397 A CN 201380022397A CN 104271093 B CN104271093 B CN 104271093B
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CN
China
Prior art keywords
mentioned
leg
region
disposable diaper
elastic component
Prior art date
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Active
Application number
CN201380022397.8A
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Chinese (zh)
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CN104271093A (en
Inventor
坂口智
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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Publication of CN104271093A publication Critical patent/CN104271093A/en
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Publication of CN104271093B publication Critical patent/CN104271093B/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
    • A61F2013/49068—Absorbent articles specially adapted to be worn around the waist, e.g. diapers characterized by the shape of the outline
    • 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
    • A61F2013/49068—Absorbent articles specially adapted to be worn around the waist, e.g. diapers characterized by the shape of the outline
    • A61F2013/49073—Absorbent articles specially adapted to be worn around the waist, e.g. diapers characterized by the shape of the outline being trapezoidal
    • 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
    • A61F2013/49088—Absorbent articles specially adapted to be worn around the waist, e.g. diapers characterized by the leg opening

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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

In disposable diaper (10), it is short by the length each other of the end in the product width direction (W) in the region of the position of low back region (30) side that the 1st leg encloses end in the product width direction (W) that the intersection point (G) of open area (R1) locates length (W1) each other encloses open area (R1) ratio intersection point (G) than the 1st leg, it is the shortest in regulation region (R) that the 2nd leg encloses end in the product width direction (W) of open area (R2) length (W2) each other, length (W1) in the product width direction (W) that the intersection point (G) in the 1st region (R1) is located is longer than the length (W2) in the product width direction (W) in the regulation region (R) in the 2nd region (R2).

Description

Disposable diaper
Technical field
The present invention relates to a kind of disposable diaper.
Background technology
In the past, be known to a kind of such pull-on disposable diaper: there is Attacking Midfielder's region, rear waistlineRegion and the lower crotch region between above-mentioned Attacking Midfielder's region and above-mentioned low back region, be formed with oneLeg is enclosed to peristome, and possess the above-mentioned lower crotch region to above-mentioned Attacking Midfielder's region and above-mentioned low back of leapThe absorber that region extends.
In this pull-on disposable diaper, be known to a kind ofly enclose portion in order to support for wearer's legThe covering of stickiness and the buttocks to wearer the two and be provided with from Attacking Midfielder's region and cross over lower crotch regionExtend to the structure (for example, with reference to patent documentation 1) of the elastic component of low back region.
Prior art document
Patent documentation
Patent documentation 1: Japanese Unexamined Patent Application Publication 2000-501962 communique
Summary of the invention
But applicant has found such problem points: cross over dress because this disposable diaper is configured toPerson's lower crotch region also extends forwards, backwards, therefore, and in the time of the wearing of this disposable diaper, to above-mentioned elasticityThe direction of member interval constriction each other applies power, cannot cover fully wearer's buttocks.
In addition, applicant thinks and has such problem points: in this disposable diaper, and need to be by above-mentionedThe state configuration of elastic component to tilt with respect to product length direction or product width direction, thus makeManufacture method is complicated.
Therefore, the present invention completes in view of above-mentioned problem, and its object is to provide the one can beThe leg that suitably fits in wearer when covering fully wearer's buttocks encloses the disposable urine of portionCloth.
The 1st feature of the present invention is a kind of disposable diaper, and it has Attacking Midfielder's region, low back regionAnd lower crotch region between above-mentioned Attacking Midfielder's region and above-mentioned low back region, this disposable diaperBe formed with pair of leg and enclose peristome, and possess the above-mentioned lower crotch region of leap and to above-mentioned Attacking Midfielder's region andThe absorber that above-mentioned low back region extends, this disposable diaper have from above-mentioned Attacking Midfielder's region towardsState the product length direction of low back region and with the orthogonal product width direction of the said goods length direction,Its purport is, this disposable diaper possesses: leg elastic member, it is to enclose peristome along above-mentioned legFrom above-mentioned Attacking Midfielder's region cross over above-mentioned the crotch region mode that extends to above-mentioned low back region form; WithAnd buttocks side elastic component, it is configured in than above-mentioned leg elastic member by outside above-mentioned product width directionThe position of side, extends along the said goods length direction, and above-mentioned leg encloses peristome to be had and dispose separatelyThe 1st leg of stating buttocks side elastic component encloses open area and is configured in and encloses open area than above-mentioned the 1st leg and lean onThe 2nd leg of the position of above-mentioned Attacking Midfielder's region side encloses open area, above-mentioned buttocks side elastic component or onStating intersection point that the extended line of buttocks side elastic component and above-mentioned leg enclose peristome becomes above-mentioned the 1st leg and encloses openingRegion and above-mentioned the 2nd leg enclose the point of interface between open area, and above-mentioned the 1st leg encloses the above-mentioned friendship of open areaEnd on the said goods width at some place above-mentioned the 1st leg of Length Ratio each other encloses open areaThe above-mentioned intersection point of ratio by the end on the said goods width in the region of above-mentioned low back region sideLength is each other short, above-mentioned the 2nd leg enclose end on the said goods width of open area thatLength between this is the shortest in region in regulation, and above-mentioned the 1st leg encloses above-mentioned intersection point place upper of open areaStating end in product width direction length each other becomes above-mentioned the 2nd leg and encloses the above-mentioned of open areaMore than the length each other of the end on the said goods width in regulation region.
Brief description of the drawings
Fig. 1 is the expansion top view of the disposable diaper of embodiments of the present invention.
Fig. 2 is the analysing and observe along F-F of the expansion top view of the disposable diaper of the 1st embodiment of the present inventionFigure.
Fig. 3 is that the leg of the expansion top view of the disposable diaper of the 1st embodiment of the present invention encloses peristome35 enlarged drawing.
Fig. 4 is that the leg of the expansion top view of the disposable diaper of the 1st embodiment of the present invention encloses peristome35 enlarged drawing.
Fig. 5 be the disposable diaper of the 1st embodiment of the present invention expansion top view A-A cutaway view andB-B cutaway view.
Detailed description of the invention
The 1st embodiment of the present invention
The disposable diaper 10 of the 1st embodiment of the present invention is described with reference to Fig. 1～Fig. 5.
In addition, in the record of the following drawings, identical or similar part has been marked to identical or classLike Reference numeral. But accompanying drawing is schematically, should note the ratio etc. of each size and real ratioExample is different.
Thereby, should judge concrete size etc. with reference to the following description. In addition, at accompanying drawing each other alsoCan comprise the different part of relation, ratio of size each other.
Fig. 1 is the expansion top view of the disposable diaper 10 of present embodiment. Fig. 2 be shown in Fig. 1 onceThe cutaway view along F-F line of property diaper 10. In addition, the expansion top view shown in Fig. 1 is to make leg elasticPositive dough sheet 50, flank 70 etc. that member 75 and leg side rivel 80 are stretched to formation disposable diaper 10 do not haveThe figure of the state while forming the state of fold.
As shown in Figure 1, disposable diaper 10 has Attacking Midfielder's region 20, lower crotch region 25 and rear waistlineRegion 30. In addition, in disposable diaper 10, be formed with pair of leg and enclose peristome 35.
At this, Attacking Midfielder's region 20 is the parts that contact with wearer's front waist portion, low back region 30Be the part contacting with wearer's rear waist portion, lower crotch region 25 is to be positioned at Attacking Midfielder's region 20 and low backPart between region 30.
In addition, in the present embodiment, the past waistline region 20 is claimed towards the direction of low back region 30Make product length direction L, will be called product width direction W with the direction of product length direction L-orthogonal.
Disposable diaper 10 possesses crosses over crotch region 25 forward waistline region 20 and low back region 30 downThe absorber 40 extending. As shown in Figure 2, absorber 40 is made up of absorbent core 40a and core covering 40b.
Absorbent core 40a is same with the absorbent core using in disposable diaper in the past, canUse known member, the materials such as comminution pulp, high absorption polymer suitably to form absorbent core 40a.Absorbent core 40a is coated by the core covering 40b of sheet.
Core covering 40b is the sheet material of coated absorbent core 40a. At least skin bearing surface side of core covering 40bA part form by thering is the various fabric nonwoven cloths of liquid permeability or tissue sheet sheet (tissuesheet).
For example, as the member that forms core covering 40b, can use the heat of the about 10g/m2～30g/m2 of grammes per square metreWind fabric nonwoven cloth, spun bond nonwoven fabric, SMS (spin SMS-spunbond) nonwoven or gramHeavily about 10g/m2～30g/m2Tissue sheet sheet.
In addition, absorber 40 also can have the unit are of absorber core 40a in low back region 30Other positions of weight ratio absorber 40 are low or do not have a low rigid region 110 of absorber core 40a. ThisOutward, low rigid region 110 also can be formed as extending to the low back on the product length direction L of absorber 40Near the end E1 of region 30 sides.
For example, the width on the product width direction W of low rigid region 110 also can be along with towards productThe end E1 of low back region 30 sides on length direction L and broadening. More particularly, overlook onceWhen property diaper 10, the shape of low rigid region 110 can be also wedge-like.
In addition, as shown in Figure 2, possesses liquid permeability in the face side (skin bearing surface side) of absorber 40Positive dough sheet 50, possess the back side of non-liquid permeability in the rear side (non-skin bearing surface side) of absorber 40Sheet 60a. And, as shown in Figure 2, the also rear side of sheet 60a (non-skin bearing surface side) overleafPossesses covering sheet material 60 (nonwoven fabric sheet).
Side edge part on the product width direction W of absorber 40 possesses respectively flank 70. Flank 70 is by 1Open or two multiple overlapping nonwoven formations above.
In addition, disposable diaper 10 possesses a pair of magic tape 90 in low back region 30, in front waistline districtIn the regulation region of the non-skin bearing surface side in territory 20, possesses object tape 90a.
At this, magic tape 90, by being arranged on object tape 90a, can remaining on disposable diaper 10 to wearOn the person's of wearing health.
In addition, as shown in Figure 1, the disposable diaper 10 of present embodiment also can possess the in-leg of being formed onCrotch pars contractilis in the absorber configuring area that disposes absorber 40 in region 25, can be flexible200a。
Specifically, as shown in Figure 2, crotch pars contractilis 200a also can be arranged on absorber 40 (core covering40b) and between back sheet 60a.
At this, crotch pars contractilis 200a both can be flexible along product length direction L, also canFlexible along product width direction W, also can be along product length direction L and product width directionThis both direction of W is flexible.
And crotch pars contractilis 200a also can be configured to the product length direction L that crosses over disposable diaper 10On center line O and forward waistline region 20 sides and low back region 30 sides extend.
In the present embodiment, crotch pars contractilis 200a also can be made up of telescopic sheet member.
For example, as this telescopic sheet member, for example, can use polyurethane, the such heat of styrenePlasticity elastic resin melting and make membranaceous retractility film, the retractility nonwoven being formed by contractile fibreCloth, on retractility film, flexible nonwoven fabrics, paste by partial cutoff or the fragile non-extensibility of having changedThe composite sheet that sheet material forms etc.
In addition, also can be by by the wire band shape being formed by polyurethane elastomeric fiber, natural rubberElastic component that can be flexible is arranged side by side mutually and is formed crotch pars contractilis 200a and substitutes this retractilitySheet element.
In this case, consider the rigidity of absorbent core 40a and form other of disposable diaper 10The rigidity of member, the suitably spacing of the rugosity of the elastic component of choice for use, configuration, but preferably, in the time that disposable diaper 10 main bodys are made as to nature (non-extended configuration), make absorbent coreThe whole region of side edge part on the product width direction W of 40a becomes the state of contraction.
Specifically, preferably, the expansion and contraction of crotch pars contractilis 200a is 1.2 times～1.8 times. For example,In the present embodiment, the expansion and contraction of crotch pars contractilis 200a also can be set to 1.4 times.
The meaning of expansion and contraction refers to that the flexible direction of crotch pars contractilis 200a (is that product is long in the present embodimentDegree direction L) on telescopic level, as following provisions.
Expansion and contraction=(the at utmost length in the flexible direction of the crotch pars contractilis 200a under extended configuration)/ (length in the flexible direction of the crotch pars contractilis 200a under nature)
In addition, in this manual, for example, measure as follows this expansion and contraction.
The 1st, in the situation that disposable diaper 10 is enclosed in packaging etc., packaging is taken out disposable urine certainlyCloth 10, places 60 minutes under 20 DEG C ± 2 DEG C, the environment of relative humidity 60% ± 5%RH with this state.
The 2nd, use the spring wind tape of affine mensuration Co., Ltd. of Japan system (to be with: added glass fibrePolyvinyl chloride cover) measure the target area under this state (being nature) along measuring object positionLength in the flexible direction in territory and from nature extend to cannot estimate confirm caused by elastic componentThe state of fold time the flexible direction of target area on length (at utmost extended configuration).Utilize above-mentioned measuring method to measure " length " in this description below.
Like this, by the expansion and contraction of crotch pars contractilis 200a is made as to 1.2 times～1.8 times, can suitably chase afterFlexible with wearer's skin.
For example,, if wearer takes health front side to roll up so anteflexion posture, wearer's buttocksThe skin of side is with respect to the state of body line up is extended to 30% left and right.
That is to say, be below 1.2 times if make the expansion and contraction of crotch pars contractilis 200a, the crotch under natureThe contraction of pars contractilis 200a is insufficient, compares with the situation that crotch pars contractilis 200a is not set, disposableThe difference of the bending easiness of diaper 10 is less, can not erect at target location Attacking Midfielder's region 20.
On the other hand, if make the expansion and contraction of crotch pars contractilis 200a be greater than 1.8 times, the receipts of crotch pars contractilis 200aContraction in contracting direction is oversize, therefore, exist the region of crotch pars contractilis 200a be easy to become with alongHealth is compared more closely sealed state, and disposable diaper 10 is easy to the below dislocation to wearer.
In addition, as shown in Figure 1, possess along leg and enclose in the face side (positive dough sheet 50 sides) of absorber 40Peristome 35 forms and at least can be along the flexible a pair of leg elastic member (leg of product length direction LPortion's rivel) 75.
Leg elastic member 75 is longer than crotch pars contractilis 200a on product length direction L, and wide at productOn degree direction W, be arranged on the position in the outer part than crotch pars contractilis 200a.
For example, as shown in Figure 1, leg elastic member 75 also can be by the leg elastic member of regulation radical(being 3 elastic components in the example of Fig. 1) 75 forms.
In addition, leg elastic member 75 also can be same with crotch pars contractilis 200a and waist pars contractilis 100 byTelescopic sheet member forms.
Specifically, the width of this telescopic sheet member (product under the nature of disposable diaper 10Width on width W) at least in lower crotch region 25, be preferably 5mm～45mm, more preferably12.5mm～35mm。
At this, if the width of this telescopic sheet member is less than 5mm, do not find in fact with face along wearingThe person's of wearing leg encloses such effect, if the width of this telescopic sheet member is greater than 45mm, encloses along legRegion become large, this telescopic sheet member is easily involved in or clot to wearer's bodyside.
The expansion and contraction of leg elastic member 75 is preferably 1.5 times～2.4 times. For example, in the present embodiment,The expansion and contraction of leg elastic member 75 also can be set to 1.9 times. The expansion and contraction of this leg elastic member 75Similarly specify with the expansion and contraction of above-mentioned crotch pars contractilis 200a.
In addition, as shown in Figure 1, also can be in (the product width side, inner side of a pair of leg elastic member 75To on W by central position) possess a pair of leg side rivel 80 extending along product length direction L.
As shown in Figure 1, leg side rivel 80 has bonding part 81 and is positioned at contrary with this bonding part 81A side position and dispose the free end portion 82 of elastic component 83.
At this, bonding part 81 also can engage with positive dough sheet 50, back sheet 60a, covering sheet material 60.
In addition, the end on the product length direction L of free end portion 82 engages with positive dough sheet 50. EngagePart 81 is configured between crotch pars contractilis 200a and leg elastic member 75 on product width direction W.
Leg side rivel 80 erects taking bonding part 81 as base end part in the time wearing, and free end portion 82 is doneFor apex and wearer's skin contact.
In addition, as shown in Figure 1, the disposable diaper 10 of present embodiment possesses along product length direction LThe a pair of buttocks side elastic component 101 extending.
At this, buttocks side elastic component 101 is configured in than leg elastic member 75 by product width direction WOn the position in outside.
In addition, Fig. 1 represents that each side is provided with the situation of 1 buttocks side elastic component 101, but the present invention alsoBe not limited to this example, also can be applied to the situation that is provided with multiple buttocks side elastic components 101.
At this, preferably, the radical of the buttocks side elastic component 101 of setting is 1～3 in each sideRoot left and right.
In addition the outside of the product width direction W of buttocks side elastic component 101 and leg elastic member 75,Between distance B 1 be preferably 10mm～30mm.
In the situation that this distance B 1 is less than 10mm, is difficult to embody and utilizes buttocks side elastic component 101 to incite somebody to actionThe effect that the mode that lower crotch region 25 launches with the outside to product width direction W is propped up.
On the other hand, in the situation that this distance B 1 is greater than 30mm, at leg elastic member 75 and buttocksThe fold producing between side elastic component 101 can make to utilize leg elastic member 75 and buttocks side elastic componentThe effect of the health that is pressed in wearer that 101 convergent force is realized is insufficient, is easy at leg elastic structureBetween part 75 and buttocks side elastic component 101 and wearer's health, produce gap, cannot cover fullyWearer's buttocks.
The fiber number that in addition, also can be configured to buttocks side elastic component 101 is less than 780Dtex, is greater than210Dtex, the expansion and contraction that is configured to buttocks side elastic component 101 is 1.8 times～2.4 times left and right.
Adopt this structure, can avoid making buttocks side elastic component 101 sheet material around exceedingly to shrink andSkin bearing surface side to disposable diaper 10 is involved in the such state of affairs of disposable diaper 10, can make onceProperty diaper 10 is sealed at wearer's buttocks.
In addition, as shown in Figure 1, in the disposable diaper 10 of present embodiment, it is each that leg encloses peristome 35From having, the 1st leg encloses open area R1 and the 2nd leg encloses open area R2. At this, the 2nd leg encloses open areaR2 is configured in than the 1st leg and encloses 20Ce position, the forward waistline of open area R1 region.
In addition, be configured to buttocks side elastic component 101 and be configured in the 1st leg and enclose in the R1 of open area, do not joinPut at the 2nd leg and enclose in the R2 of open area.
That is, as shown in Figure 1, be configured to, under the elongation state of disposable diaper 10, buttocks side elasticityThe intersection point G that member 101 (or extended line of buttocks side elastic component 101) and leg enclose peristome 35 becomesThe 1st leg encloses open area R1 and the 2nd leg encloses the point of interface between the R2 of open area.
In addition, be configured to, under the elongation state of disposable diaper 10, the 1st leg encloses open area R1'sEnd on product width direction W length W1 is each other the shortest at intersection point G place.
In addition, in the situation that there are many buttocks side elastic components 101 in each side, with respect inLean on the buttocks side elastic component 101 of the inner side of product width direction W to specify that above-mentioned intersection point G and the 1st leg encloseThe end of open area R1.
That is, be configured to, under the elongation state of disposable diaper 10, the 1st leg encloses the intersection point of open area R1End on the product width direction W at G place length W1 each other encloses open area R1's than the 1st legThan intersection point G by the end on the product width direction W in the region of low back region 30 sides each otherLength is short.
On the other hand, be configured to, under the elongation state of disposable diaper 10, the 2nd leg encloses open areaEnd on the product width direction W of R2 length W2 is each other the shortest in regulation region R.
At this, be configured to, under the elongation state of disposable diaper 10, the 1st leg encloses open area R1'sEnd on the product width direction W at intersection point G place length W1 each other becomes the 2nd leg and encloses open regionMore than the length W2 each other of the end on the product width direction W in the regulation region R of territory R2.
In other words, as shown in Figure 3, in the time overlooking disposable diaper 10, utilize with respect to the 1st curve A structureThe 2nd curve B that becomes the shape protruding towards the outside of product width direction W forms product width direction WOn the 1st leg enclose open area R1, the 1st curve A is configured to towards the inner side of product width direction W protrudingShape.
For example, as shown in Figure 4, also can the 1st curve A be configured in product width direction WThe circular-arc convex form that side Wi is protruding, the 2nd curve B is configured to the outside Wo towards product width direction WProtruding circular-arc convex form.
In addition, as shown in Figure 4, also can be configured to, under the elongation state of disposable diaper 10, the 2ndThe tangent line at the intersection point G place of curve B and buttocks side elastic component 101 (or buttocks side elastic component 101Extended line) angulation θ becomes 25 °～35 °.
Adopt this structure, in the time that buttocks side elastic component 101 shrinks, leg encloses the line of the end of peristome 35Bar becomes smooth shape, can there is no sense of discomfort along wearer's buttocks shape, can become energyEnough cover the outward appearance of wearer's buttocks.
In addition, adopt this structure, because the sheet material such as nonwoven of the buttocks that covers wearer himself also canEnough be sealed at wearer's health, therefore, even if apply wearer's motion, disposable diaper 10 also canEnough maintain the state of the buttocks that is covered with wearer.
And as shown in Figure 1, buttocks side elastic component 101 to be to configure with the overlapping mode of line X, this lineThe end E1 of low back region 30 sides of X link leg elastic member 75 and the base end part of magic tape 90The end E2 of the inner side of product width direction W and lower crotch region 25 sides.
As shown in Fig. 5 (a), also can utilize 3 layers of above non-Stretchable sheet (for example flank 70,Back sheet 60a and covering sheet material 60) keep in leg elastic member 75, be configured near absorberMore than two leg elastic member 75 of the position of core 40a (absorber 40).
On the other hand, as shown in Fig. 5 (b), also can utilize two-layer non-Stretchable sheet (for example sideThe wing 70 and covering sheet material 60) maintenance buttocks side elastic component 101.
At this, as shown in Figure 1, dispose the region of crotch pars contractilis 200a and dispose buttocks side elasticity structureThe region of part 101 also can be to configure in the overlapping mode of at least a portion on product length direction L.
Adopt the disposable diaper 10 of present embodiment, by the product width side in leg elastic member 75To the outside Wo configuration buttocks side elastic component 101 of W, make buttocks side elastic component 101 to enclose along legThe mode of the end shape (lines) of peristome 35 is shunk, can be by lower crotch region 25 and Attacking Midfielder's regionThe end that leg in 20 encloses peristome 35 is towards low back region 30 sides and more towards disposable diaper 10The outside Wo of product width direction W pulls.
Its result can cover extensively wearer's buttocks on width, is preventing disposable urineWhen the lower crotch region 25 contracting width of cloth 10, disposable diaper 10 is suitably fitted in to wearer's veutroLeg enclose pars inguinalis.
Above, utilize above-mentioned embodiment to understand in detail the present invention, but those skilled in the art can be brightReally, the embodiment that the present invention is not limited to illustrate in this manual.
In addition,, in the disposable diaper of this modification, also can be provided with by the elastic component of rope form and formShank rivel substitute the shank rivel being formed by the nonwoven fabric sheet of retractility.
The present invention can not depart from the spirit and scope of the invention ground being determined by the record of claimsImplement as modifications and changes mode. Thereby the record of this description to be to illustrate as object, andDo not there is the meaning of any restriction for the present invention.
In addition, Japan's patent application No. 2012-104156 (application on April 27th, 2012) is wholeContent is incorporated into this case description by reference.
Utilizability in industry
Can provide a kind of can suitably fit in and wear in the buttocks that covers fully wearerThe person's of wearing leg encloses the disposable diaper of portion.
Description of reference numerals
10, disposable diaper; 20, Attacking Midfielder's region; 25, lower crotch region; 30, low back region;35, leg encloses peristome; 40, absorber; 40a, absorber core; 40b, core covering; 50, positive dough sheet;60a, back sheet; 60, covering sheet material; 70, flank; 75, leg elastic member; 80, leg sideRivel; 81, bonding part; 82, free end portion; 90, magic tape; 90a, object tape; 101,Buttocks side elastic component; 110, low rigid region; 200a, crotch pars contractilis; R1, the 1st leg enclose open regionTerritory; G, intersection point; R2, the 2nd leg enclose open area; R, regulation region.

Claims (8)

1. a disposable diaper, it has Attacking Midfielder's region, low back region and is positioned at above-mentioned Attacking MidfielderLower crotch region between region and above-mentioned low back region,
This disposable diaper is formed with pair of leg and encloses peristome,
And possess the above-mentioned lower crotch region of leap and prolong to above-mentioned Attacking Midfielder's region and above-mentioned low back regionThe absorber of stretching,
This disposable diaper has the product length towards above-mentioned low back region from above-mentioned Attacking Midfielder's regionDirection and with the orthogonal product width direction of the said goods length direction,
This disposable diaper possesses leg elastic member, and this leg elastic member is to enclose opening along above-mentioned legThe mode that portion's crotch region from above-mentioned Attacking Midfielder's region leap is above-mentioned extends to above-mentioned low back region forms,It is characterized in that,
This disposable diaper possesses buttocks side elastic component, and this buttocks side elastomeric member configuration is than above-mentioned legPortion's elastic component, by the position in the outside of above-mentioned product width direction, prolongs along the said goods length directionStretch,
Above-mentioned leg encloses peristome to be had separately the 1st leg that disposes above-mentioned buttocks side elastic component and encloses open regionTerritory and be configured in and enclose open area than above-mentioned the 1st leg and enclose by the 2nd leg of the position of above-mentioned Attacking Midfielder's region sideOpen area,
Extended line and the above-mentioned leg of above-mentioned buttocks side elastic component or above-mentioned buttocks side elastic component enclose outThe intersection point of oral area becomes that above-mentioned the 1st leg encloses open area and above-mentioned the 2nd leg encloses the boundary between open areaPoint,
Above-mentioned the 1st leg encloses end on the said goods width at above-mentioned intersection point place of open area each otherBetween above-mentioned the 1st leg of Length Ratio enclose open area the above-mentioned intersection point of ratio by above-mentioned low back region Ce districtEnd on the said goods width in territory length is each other short,
Above-mentioned the 2nd leg encloses end on the said goods width of open area length each other and existsIt is the shortest in regulation region,
Above-mentioned the 1st leg encloses end on the said goods width at above-mentioned intersection point place of open area each otherBetween length become the said goods width side in the afore mentioned rules region that above-mentioned the 2nd leg encloses open areaMore than the length each other of end upwards.
2. disposable diaper according to claim 1, is characterized in that,
In the time overlooking above-mentioned disposable diaper, above-mentioned the 1st leg encloses open area and utilizes with respect to the 1st curve structureThe 2nd curve that becomes the shape protruding towards the outside of the said goods width forms, and the 1st curve formsFor the protruding shape in the inner side towards the said goods width.
3. disposable diaper according to claim 2, is characterized in that,
Above-mentioned the 2nd curve is configured to the circular-arc convex protruding towards the outside of the said goods widthShape,
The tangent line at the above-mentioned intersection point place of above-mentioned the 2nd curve and above-mentioned buttocks side elastic component or above-mentioned buttocksThe extended line angulation of side elastic component becomes 25 °～35 °.
4. disposable diaper according to claim 2, is characterized in that,
Above-mentioned the 1st curve is configured to the circular-arc convex protruding towards the inner side of the said goods widthShape.
5. according to the disposable diaper described in any one in claim 1～4, it is characterized in that,
This disposable diaper possesses magic tape in above-mentioned low back region,
Above-mentioned buttocks side elastic component is to configure with the mode of line overlap described later; This line links above-mentioned shankThe end of above-mentioned low back region side of elastic component and the said goods of the base end part of above-mentioned magic tape are wideThe degree inner side of direction and the end of above-mentioned in-leg area side.
6. according to the disposable diaper described in any one in claim 1～4, it is characterized in that,
Above-mentioned absorber has absorber core,
Utilize 3 layers of above non-Stretchable sheet keep in above-mentioned leg elastic member, be configured near upperState more than two leg elastic member of the position of absorber core,
Utilize two-layer non-Stretchable sheet to keep above-mentioned buttocks side elastic component.
7. according to the disposable diaper described in any one in claim 1～4, it is characterized in that,
This disposable diaper possesses the absorption of disposing above-mentioned absorber being formed in above-mentioned lower crotch regionCrotch pars contractilis in body configuring area, can be flexible.
8. disposable diaper according to claim 7, is characterized in that,
The region that disposes the region of above-mentioned crotch pars contractilis and dispose above-mentioned buttocks side elastic component withOn the said goods length direction, configure in the overlapping mode of at least a portion.
CN201380022397.8A 2012-04-27 2013-04-25 Disposable diaper Active CN104271093B (en)

Applications Claiming Priority (3)

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JP2012104156A JP5243642B1 (en) 2012-04-27 2012-04-27 Disposable diapers
JP2012-104156 2012-04-27
PCT/JP2013/062240 WO2013161952A1 (en) 2012-04-27 2013-04-25 Disposable diaper

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CN104271093A CN104271093A (en) 2015-01-07
CN104271093B true CN104271093B (en) 2016-05-04

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JP6030933B2 (en) * 2012-11-27 2016-11-24 ユニ・チャーム株式会社 Disposable diapers
JP6118083B2 (en) * 2012-11-27 2017-04-19 ユニ・チャーム株式会社 Disposable diapers
JP5243655B1 (en) 2012-11-27 2013-07-24 ユニ・チャーム株式会社 Disposable diapers
WO2017003739A1 (en) 2015-06-30 2017-01-05 The Procter & Gamble Company Absorbent article with elasticized region
WO2017003741A1 (en) 2015-06-30 2017-01-05 The Procter & Gamble Company Absorbent article with elasticized waist region
WO2017003740A1 (en) 2015-06-30 2017-01-05 The Procter & Gamble Company Chassis design for absorbent article
WO2017003738A1 (en) 2015-06-30 2017-01-05 The Procter & Gamble Company Absorbent article with elasticized region
JP6370344B2 (en) * 2016-07-28 2018-08-08 花王株式会社 Disposable diapers

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US6340782B1 (en) * 1989-10-04 2002-01-22 Sca Hygiene Products Aktiebolag Method of securing an elastic band and an article that includes such an elastic band
US6117121A (en) * 1995-12-11 2000-09-12 Kimberly-Clark Worldwide, Inc. Absorbent article using extensible leg cuffs
JP4036766B2 (en) * 2003-02-05 2008-01-23 花王株式会社 Disposable absorbent article
WO2006135017A1 (en) * 2005-06-15 2006-12-21 Daio Paper Corporation Absorbent article
EP2591758B1 (en) * 2010-07-07 2021-11-17 Kao Corporation Disposable diaper
JP5250708B2 (en) * 2012-02-16 2013-07-31 大王製紙株式会社 Disposable diapers

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BR112014026557A2 (en) 2017-10-24
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WO2013161952A1 (en) 2013-10-31
AR091342A1 (en) 2015-01-28

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