CN104254311B - Disposable diaper - Google Patents
Disposable diaper Download PDFInfo
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- CN104254311B CN104254311B CN201380022257.0A CN201380022257A CN104254311B CN 104254311 B CN104254311 B CN 104254311B CN 201380022257 A CN201380022257 A CN 201380022257A CN 104254311 B CN104254311 B CN 104254311B
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- Prior art keywords
- lower limb
- mentioned
- pars contractilis
- disposable diaper
- encloses
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Classifications
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- 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
- A61F13/49446—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 impermeable sheet or impermeable part of a sheet placed on or under the top sheet
- A61F13/49453—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 impermeable sheet or impermeable part of a sheet placed on or under the top sheet the edge leakage prevention sheet being combined with the impermeable backing sheet, e.g. integral with the backing sheet
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/51—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the outer layers
- A61F13/514—Backsheet, i.e. the impermeable cover or layer furthest from the skin
- A61F13/51474—Backsheet, i.e. the impermeable cover or layer furthest from the skin characterised by its structure
- A61F13/51478—Backsheet, i.e. the impermeable cover or layer furthest from the skin characterised by its structure being a laminate, e.g. multi-layered or with several layers
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- Health & Medical Sciences (AREA)
- Vascular Medicine (AREA)
- Epidemiology (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Dermatology (AREA)
- Absorbent Articles And Supports Therefor (AREA)
Abstract
Disposable diaper (10) possesses pair of leg and encloses pars contractilis (100) and be located at than the liquid-impermeable leakproof sheet material (55) of absorbent main body (15) by non-skin bearing surface side.Leakproof sheet material (55) has when the overlooking of disposable diaper (10) and to enclose the overlapping repeat region (R1) of pars contractilis (100) with lower limb and be positioned at the outside, product length direction (L) of repeat region (R1) and do not enclose the overlapping non-duplicate region (R1) of pars contractilis (100) with lower limb.Repeat region (R1) is formed in a lower limb and encloses the narrowest part of distance on product width direction (W) that pars contractilis (100) and another lower limb enclose between pars contractilis (100) and the central part be formed on product length direction (L), and goes and constriction along with to product length direction (L) outside.
Description
Technical field
The present invention relates to a kind of disposable diaper, particularly relate to and a kind ofly consider the disposable diaper preventing Excreta from leaking near lower crotch.
Background technology
Disposable diaper has frontal cowl, rear waist portion and lower crotch usually, and in order to tackle the physical trait of wearer, it becomes the narrowest shape of the width of lower crotch.Further, be easy to the lower crotch narrower to such width when the wearing of disposable diaper and apply very large load (load), therefore, be easy to cause Excreta to leak near lower crotch.
Therefore, in order to seal near the lower crotch of disposable diaper more reliably, be known to a kind of such structure: on the channel floor forming leg-openings portion, configure liquid-impermeable leakproof sheet material (be plastic film in general, improve the non-woven fabrics etc. of water-resistant pressure), be interposed between lower crotch constriction between pair of leg being enclosed between elastic component, widen (such as patent documentation 1) in frontal cowl and rear waist portion side.
In addition, also be known to a kind of such structure: although do not have mounting material outside to arrange leakproof sheet material on the whole, be only provided with leakproof sheet material (such as patent documentation 2) in the position of the back side (Excreta abuts the face of leaking near lower crotch from the non-skin) side of absorber.
Prior art document
Patent documentation
Patent documentation 1: Japanese Unexamined Patent Publication 4-122257 publication (the 3rd figure)
Patent documentation 2: Japanese Unexamined Patent Publication 2000-107227 publication (the 3rd figure)
Summary of the invention
But, in above-mentioned disposable diaper in the past, there is following problem.Namely, in the disposable diaper disclosed in patent documentation 1, although can prevent from the leakage caused such as oozing out by Excreta from being easy to most to apply the lower crotch of load, but because the channel floor forming leg-openings portion is covered by the leakproof sheet material that breathability is lower, therefore, the skin that the lower limb that there is the wearer that leakproof sheet material is closely sealed due to elastic component encloses periphery is easy to the troublesome problem such as sultry.
In addition, in the disposable diaper disclosed in patent documentation 2, although the lower limb of wearer can be suppressed to enclose the troubles such as the skin of periphery is sultry, there is the problem that cannot prevent from fully being oozed out etc. the leakage caused from the lower crotch being easy to most apply load by Excreta.
Therefore, the object of the present invention is to provide and a kind ofly prevent Excreta from leaking near lower crotch and further increase the disposable diaper of the comfortableness of wearer.
Feature of the present invention is a kind of disposable diaper (disposable diaper 10), it has frontal cowl (frontal cowl 20), rear waist portion (rear waist portion 30) and lower crotch (lower crotch 25), this disposable diaper possesses the absorbent main body (absorbent main body 15) of the lengthwise of the absorber (absorber 40) comprising liquid retainability and is located at the flank (flank 70) of the side edge part on the product width direction (product width direction W) of above-mentioned absorbent main body, above-mentioned flank is formed the lower limb recessed towards the center on the product width direction of above-mentioned absorbent main body and encloses recess (lower limb encloses recess 35), the purport of this disposable diaper is, this disposable diaper possesses: leakproof sheet material (leakproof sheet material 55), it is liquid-impermeable, be located at than the position of above-mentioned absorbent main body by non-skin bearing surface side, and pair of leg encloses pars contractilis (lower limb encloses pars contractilis 100), it is located at the side end on the product width direction of above-mentioned flank, extend along product length direction (product length direction L) being formed with above-mentioned lower limb and enclosing in the region of recess, and its part at least can be stretched along product length direction, above-mentioned leakproof sheet material to have when the overlooking of above-mentioned disposable diaper outside the product length direction of to enclose the overlapping repeat region of pars contractilis (repeat region R1) with above-mentioned lower limb and being positioned at above-mentioned repeat region and not to enclose the overlapping non-duplicate region of pars contractilis (non-duplicate region R2) with above-mentioned lower limb, above-mentioned repeat region is formed in an above-mentioned lower limb and encloses the narrowest part of distance on product width direction that pars contractilis and another above-mentioned lower limb enclose between pars contractilis and the central part be formed on product length direction, and go and constriction along with outside product length direction, above-mentioned non-duplicate region is formed in outside the product length direction of above-mentioned repeat region, and be formed in an above-mentioned lower limb and enclose the large part of distance that distance on product width direction that pars contractilis and another above-mentioned lower limb enclose between pars contractilis encloses on product width direction that pars contractilis and another above-mentioned lower limb enclose between pars contractilis than an above-mentioned lower limb of above-mentioned repeat region.
Accompanying drawing explanation
Fig. 1 is the expansion top view of the disposable diaper 10 of embodiments of the present invention.
Fig. 2 is the amplification plan view that the lower limb of embodiments of the present invention encloses pars contractilis 100.
Fig. 3 is the figure in the cross section along F3-F3 line schematically representing the disposable diaper 10 shown in Fig. 1.
Fig. 4 schematically represents that the disposable diaper 10 of embodiments of the present invention is dressed in the figure of the state of wearer.
Fig. 5 is the amplification plan view that the lower limb of modification of the present invention encloses pars contractilis 100.
Detailed description of the invention
Then, the embodiment of disposable diaper of the present invention is described with reference to accompanying drawing.In addition, in the record of the following drawings, identical or similar Reference numeral is marked to identical or similar part.But accompanying drawing is schematic, should notice that ratio of each size etc. is different from the ratio of reality.
Thus, concrete size etc. should be judged with reference to the following description.In addition, the relation of size each other, part that ratio is different can also be comprised each other at accompanying drawing.
(1) the overall schematic configuration of disposable diaper
Fig. 1 is the expansion top view of the disposable diaper 10 of present embodiment.Fig. 2 is the amplification plan view that lower limb encloses pars contractilis 100.Fig. 3 is the figure in the cross section along F3-F3 line schematically representing the disposable diaper 10 shown in Fig. 1.In addition, expansion top view shown in Fig. 1 is the figure of state when leg rivel 75 and leg side rivel 80 being stretched to form the positive dough sheet 50, flank 70 etc. of disposable diaper 10 not form the state of fold, but for convenience of explanation, illustrate the state that leg side rivel 80 has stretched.
As shown in FIG. 1 to 3, disposable diaper 10 has frontal cowl 20, lower crotch 25 and rear waist portion 30.Frontal cowl 20 is the parts contacted with the frontal cowl of wearer.In addition, rear waist portion 30 is the parts contacted with the rear waist portion of wearer.Lower crotch 25 is between frontal cowl 20 and rear waist portion 30.Absorbent main body 15 is formed by frontal cowl 20, lower crotch 25 and rear waist portion 30.In the present embodiment, be called product length direction L by from frontal cowl 20 towards the direction of rear waist portion 30, the direction with the L-orthogonal of product length direction be called product width direction W.
Disposable diaper 10 is formed pair of leg and encloses recess 35.Specifically, lower limb encloses recess 35 and is formed in side edge part (specifically flank 70) on the product width direction W of absorbent main body 15, and it is recessed towards the center on the W of product width direction.Lower limb encloses recess 35 and is sticked in frontal cowl 20, specifically object tape 65 when disposable diaper 10 is dressed in wearer by the magic tape 90 on waist portion 30 after making to be equipped in, and forms peristome from frontal cowl 20 to rear waist portion 30 ground.Lower limb enclose that recess 35 is formed in center on the product length direction L of object tape 65 and flank 70 between the position (E1 shown in Fig. 1, Fig. 2) of intersection point of ora terminalis and the position (E2 shown in Fig. 1, Fig. 2) of the cardinal extremity of lower crotch 25 side of magic tape 90.
The absorber 40 that disposable diaper 10 possesses leap lower crotch 25 and extends to frontal cowl 20 and rear waist portion 30.Absorbent main body 15 has the shape of the lengthwise of the absorber 40 comprising liquid retainability.Absorber 40 is made up of absorbent core 40a and core covering 40b.
Absorber 40 is same with disposable diaper in the past, can use the known component such as comminution pulp, high absorption polymer, material suitably forms.Absorbent core 40a is coated by the core covering 40b of lamellar.Core covering 40b is the sheet material of coated absorbent core 40a.Core covering 40b is at least made up of the various fabric nonwoven cloth or tissue sheet sheet (tissuesheet) with liquid permeability by a part for skin side.Such as, grammes per square metre can be used to be about 10g/m
2~ 30g/m
2hot blast fabric nonwoven cloth, spun bond nonwoven fabric, SMS (spunbond-melt blown-spunbond) non-woven fabrics or grammes per square metre be about 10g/m
2~ 30g/m
2tissue sheet sheet.
The positive dough sheet 50 of liquid permeability is possessed in the face side (skin bearing surface side) of absorber 40.In addition, liquid-impermeable leakproof sheet material 55 is possessed in the rear side (non-skin bearing surface side) of absorber 40.The bottom chip 60 formed by non-woven fabrics is possessed in the rear side of leakproof sheet material 55.Leakproof sheet material 55 is made up of plastic film or the non-woven fabrics that improves water-resistant pressure.
Side edge part on the product width direction W of absorbent main body 15 possesses flank 70 from frontal cowl 20 respectively to rear waist portion 30 ground.Flank 70 is made up of the non-woven fabrics of multiple overlaps of more than 1 or 2.In addition, a pair flank 70 is respectively arranged with magic tape 90.
Side end on the product width direction W of flank 70 is provided with pair of right and left lower limb and encloses pars contractilis 100.Lower limb encloses pars contractilis 100 being formed with lower limb and enclosing in the region of recess 35 and extends along product length direction L, and its part at least can be stretched along product length direction L.Specifically, lower limb encloses pars contractilis 100 and extends to lower limb and enclose end on the product length direction L of recess 35.
In present embodiment, it is the regions (with reference to Fig. 1) comprising flexible sheet material 200 that lower limb encloses pars contractilis 100, and the lower limb ora terminalis enclosed on the product width direction of pars contractilis 100 is meander-like on the L of product length direction.Flexible sheet material 200 is formed by the nonwoven fabric sheet of retractility.More particularly, flexible sheet material 200 is by a pair non-telescoping sheet material and formed by the flexible member of this pair non-telescoping sheet clamping, and it configures with the state of having extended on the L of product length direction.That is, in the present embodiment, lower limb encloses pars contractilis 100 and is made up of the elastic component of lamellar.
In addition, the inner side (on the W of product width direction by middle position) of enclosing pars contractilis 100 in pair of leg possesses a pair leg side rivel 80 extended along product length direction L.In addition, disposable diaper 10 also can possess in frontal cowl 20 and rear waist portion 30 along the waist rivel that product width direction W configures.
(2) lower limb encloses the shape of pars contractilis 100
Then, the shape etc. that lower limb encloses pars contractilis 100 is illustrated.As shown in Figure 2, lower limb encloses the ora terminalis that pars contractilis 100 encloses recess 35 along the lower limb of disposable diaper 10 and arranges.
In addition, lower limb encloses pars contractilis 100 and can utilize such as following method manufacture.That is, become and flexible sheet material 200 is exceeded lower limb with enclosing the cutting position of the front-end and back-end of recess 35 to bend and the state of extending along the mode of the shape of overlapping lower limb mouth.In this case, between the sheet material forming flank 70 or leg side rivel 80 and leakproof sheet material, clip flexible sheet material 200, utilize bonding agent to be fixed on this sheet material.Then, enclose recess 35 by utilizing the sickle that can form the cutting profile of regulation along lower limb and cut flexible sheet material 200 and this sheet material, lower limb can be formed and enclose pars contractilis 100.
In the present embodiment, the width W 1 along product width direction W that lower limb encloses under the naturalness of pars contractilis 100 is preferably 5mm ~ 45mm, is more preferably 12.5m ~ 40mm.If above-mentioned width is less than 5mm, stress then caused by flexible sheet material 200 is concentrated and burden for the skin of wearer becomes large, on the other hand, if above-mentioned width is greater than 45mm, then compared with the width of disposable diaper 10 entirety, become excessive along the region that lower limb encloses, lower limb encloses pars contractilis 100 and is easily involved in or clot to the bodyside of wearer.
In addition, naturalness refer to by disposable diaper 10 from packaging take out and 20 DEG C ± 2 DEG C, place the situation of measurement after 60 minutes under the environment of relative humidity 60% ± 5%RH.In addition, the expansion and contraction that lower limb encloses pars contractilis 100 is set to 1.5 times ~ 2.4 times.By being set as such expansion and contraction, lower limb encloses the health that pars contractilis 100 suitably can fit in wearer.
In addition, the meaning of expansion and contraction refers to that lower limb encloses the telescopic level on the product width direction W of pars contractilis 100, specifies as follows.
Expansion and contraction=when the at utmost elongation of pars contractilis 100 (lower limb in product enclose the length)/when naturalness of pars contractilis 100 (lower limb in product enclose length)
In addition, during maximum elongation length for measuring object be configured with product (disposable diaper 10) that lower limb encloses pars contractilis 100 measure farthest be elongated to product not damaged degree time the lower limb length along product width direction W of enclosing pars contractilis 100 draw.In addition, when becoming the naturalness of contraction state length be product to be placed on smooth face and do not apply to make it to make along load of product width direction stretching to be caused by rivel as far as possible concavo-convex for minimal state under measure lower limb and enclose the length along product width direction W of pars contractilis 100 and draw.In addition, when lower limb as in the present embodiment enclose pars contractilis 100 bending, preferably measure the length under above-mentioned each state along the line of the end inside the product width direction W of flexible sheet material 200.
In addition, leakproof sheet material 55 to have when the overlooking of disposable diaper 10 outside the product length direction L that to enclose the overlapping repeat region R1 of pars contractilis 100 with lower limb and be positioned at repeat region R1 and not to enclose the overlapping non-duplicate region R2 of pars contractilis 100 with lower limb.In addition, leakproof sheet material 55 and lower limb enclose the nonoverlapping non-duplicate region of pars contractilis 100 and are also present in inside the product width direction W of repeat region R1, but at this, this non-duplicate region is different from the non-duplicate region R2 outside the product length direction L being positioned at repeat region R1.
Repeat region R1 is formed in a lower limb and encloses the narrowest part of distance d3 on product width direction W that pars contractilis 100 and another lower limb enclose between pars contractilis 100 and the central part be formed on the L of product length direction.Bend because lower limb encloses pars contractilis 100, therefore, the width of repeat region R1 goes and constriction along with outside the L of product length direction.Outside the product length direction L that non-duplicate region R2 is formed in repeat region R1, part that distance d3 is larger than the distance of repeat region R1.In addition, the repeat region R1 of leakproof sheet material 55 is configured in the position in the inner part, end of to enclose than lower limb on the product length direction L of recess 35.
In the present embodiment, preferably, as shown in Figure 3, with at least any one the corresponding position in frontal cowl 20 and lower crotch 25, the thickness inside the product width direction W that the Thickness Ratio lower limb outside the product width direction W that lower limb encloses pars contractilis 100 encloses pars contractilis 100 is thin.Specifically, the thickness inside its product width direction of the Thickness Ratio W enclosing the ora terminalis on the product width direction W of pars contractilis 100 to make lower limb is thin, and lamination sheets number is less in the position by this ora terminalis.In the present embodiment, as shown in Figure 3, the side part (T1 in figure) of enclosing on the product width direction W of pars contractilis 100 at lower limb is provided with 3 sheet materials (leg side rivel 80, flexible sheet material 200 and bottom chip 60).On the other hand, the W inboard portion, product width direction (T2 in figure) of enclosing pars contractilis 100 at lower limb is provided with 4 sheet materials (having added leakproof sheet material 55).
The part of the disposable diaper 10 corresponding with the pars inguinalis of wearer is the positions being easy to most due to the motion of lower limb nip, therefore, like this, being divided by the lower limb end edge portion enclosed on the product width direction W of pars contractilis 100 is formed than thin inside the W of product width direction, and when the wearing of disposable diaper 10, lower limb encloses pars contractilis 100 and is easy to closely sealed outward inside the W of product width direction.Therefore, the lower limb around pars inguinalis encloses stickiness, the stability rising of pars contractilis 100, can play consistently lower limb and enclose the effect of pars contractilis 100 for the pressure dissipation of skin.
In addition, utilize spiral applies, Ω applies such wire bonding agent to there is bonding agent and there is portion and formation lower limb is enclosed the flexible sheet material of pars contractilis 100 and being joined together of non-telescoping sheet material by the non-pattern coating that there is portion.Further, flexible sheet material adopts by the nonwoven fabric sheet having elastic contractile fibre and form.Utilize such structure, the nonwoven fabric sheet fiber enclosing the end of recess 35 due to lower limb is interlaced with one another, therefore, can not untie when the use of disposable diaper 10, and owing to enclosing the end global non-existence bonding agent of recess 35 at lower limb, therefore, it is possible to make more soft lower limb to enclose pars contractilis 100.
In addition, utilize above-mentioned coating, also can suppress the retractility being hindered flexible sheet material by non-telescoping sheet material, lower limb can be improved and enclose the neighbouring adaptation for the health of wearer of recess 35.
Fig. 4 schematically represents that disposable diaper 10 is dressed in the figure of the state of wearer.Because stress is easy to concentrate on the front-end and back-end that lower limb encloses recess 35, therefore, preferably, be set to the state that the pressure for skin can be made more to disperse in advance.Specifically, due to be close to magic tape 90 cardinal extremity and be located at frontal cowl 20 object tape 65 position and be the front-end and back-end that lower limb encloses recess 35, therefore, stress is easy to concentrated, and owing to being the position also sometimes overlapped in front and back when the wearing of disposable diaper 10, therefore, preferably, in order to the pressure for skin can be disperseed to be set to convex.
(3) action effect
Adopt disposable diaper 10, lower limb encloses pars contractilis 100 and is located at side end on the product width direction W of flank 70, extends being formed with lower limb and enclosing in the region of recess 35 along product length direction L.In addition, repeat region R1 is formed in a lower limb and encloses the narrowest part of distance d3 on product width direction W that pars contractilis 100 and another lower limb enclose between pars contractilis 100 and the central part be formed on the L of product length direction, outside the product length direction L that non-duplicate region R2 is formed in repeat region R1, part that distance d3 is larger than the distance of repeat region R1.Therefore, if lower limb encloses pars contractilis 100 and extends along product length direction L when the wearing of disposable diaper 10, then enclose pars contractilis 100 extend by enclosing the bending lower limb of recess 35 along lower limb, the repeat region R1 of leakproof sheet material 55 is protruding outside to product width direction W.Like this, if leakproof sheet material 55 is protruding outside to product width direction W, then under the wearing effect of disposable diaper 10, become leakproof sheet material 55 in lower crotch 25 above the health of wearer, mentioned (dotted arrow with reference in Fig. 4) such state.
Therefore, utilize the leakproof sheet material 55 of mentioning above the health of wearer, can reliably prevent Excreta from leaking near lower crotch 25.In addition, due to leakproof sheet material 55 not with the direct skin contact of wearer, lower limb encloses the contact skin of pars contractilis 100 and wearer, therefore, it is possible to improve the comfortableness of wearer further.
In the present embodiment, lower limb encloses pars contractilis 100 and is made up of the elastic component of lamellar, specifically flexible sheet material 200, and extends to lower limb and enclose end on the product length direction L of recess 35.In addition, repeat region R1 is configured in the position in the inner part, end of to enclose than lower limb on the product length direction L of recess 35.Therefore, lower limb encloses pars contractilis 100 and can enclose closely sealed with the lower limb of face and wearer, the leakproof sheet material 55 of repeat region R1 reliably can be sealed at the health of wearer.On the other hand, because the end of enclosing recess 35 at lower limb does not exist leakproof sheet material 55, therefore, it is possible to guarantee the breathability that lower limb encloses.
In the present embodiment, lower limb encloses pars contractilis 100 and forms by a pair non-telescoping sheet material with by the flexible member of above-mentioned a pair non-telescoping sheet clamping, configures with the state of having extended on the L of product length direction.Therefore, be formed with the fold (rivel) extended along product width direction W when the wearing of disposable diaper 10, can breathability be guaranteed.On the other hand, the stacked number that leakproof sheet material 55, lower limb enclose pars contractilis 100 in repeat region R1 changes.Compared with the part that stacked number is more, the less part of stacked number is easier to when wearing extend, and fold becomes less, therefore, can not become the state that same fold extends, can suppress excremental leakage.
(4) other embodiments
As mentioned above, disclose content of the present invention by embodiments of the present invention, but form the discussion of a part of the disclosure and accompanying drawing and should not be construed as limiting the present invention.According to the disclosure, those skilled in the art can specify various replacement embodiment, embodiment and application technology.
Such as, the shape that above-mentioned lower limb encloses pars contractilis 100 also can change as follows.Fig. 5 is the amplification plan view that the lower limb of modification of the present invention encloses pars contractilis 100.As shown in Figure 5, the ora terminalis that encloses on the product width direction of pars contractilis 100 of the lower limb of this modification is cranky on the L of product length direction.Specifically, be formed with flex point P1 ~ P5 by enclosing at lower limb on pars contractilis 100, the ora terminalis that lower limb encloses on the product width direction W of pars contractilis 100 becomes meander-like.Therefore, lower limb encloses ora terminalis on the product width direction of pars contractilis 100 to have on the W of product width direction relative to the curve S 1 of enclosing along the lower limb of wearer of disposable diaper 10 concavo-convex.
More particularly, lower limb encloses ora terminalis on the product width direction W of pars contractilis 100 and changes towards rear waist portion 30 along with from frontal cowl 20 as the distance (distance d1, d2) by the center on the W of product width direction and between the centre line C L (with reference to Fig. 1) being parallel to the straight line in product length direction.This distance changes the quantity of the flex point (flex point P2, P4) of minimizing into from increasing, this distance is set to multiple from reducing the quantity changing the flex point (flex point P1, P3, P5) of increase into respectively.
Be formed at the amplitude A that lower limb encloses on the product width direction W of the meander formed portion of pars contractilis 100 and be preferably 2.5mm ~ 20mm.When with regulation flex point (such as flex point P4) for benchmark, amplitude A is the distance between this flex point and position described later; Aforesaid position and the line orthogonal passed through with adjacent 2 flex points (such as flex point P3, P5) of this flex point, and by this flex point (P4).In addition, the starting point of the amplitude of protuberance 110 is positions (E1 shown in Fig. 1, Fig. 2) of the intersection point of the ora terminalis of center on the product length direction L of object tape 65 and flank 70, and the starting point of the amplitude of protuberance 120 is positions (E2 shown in Fig. 1, Fig. 2) of the cardinal extremity of lower crotch 25 side of magic tape 90.
In addition, amplitude A is set to the distance between this flex point and this position obtained launching to measure disposable diaper 10 under extended configuration.If amplitude A is less than 2.5mm, then cannot form the relief region that lower limb encloses pars contractilis 100 fully, for the pressure of skin when being difficult to relax the wearing of disposable diaper 10.In addition, if amplitude A is greater than 20mm, then lower limb encloses pars contractilis 100 and is easy to become the state between health and disposable diaper 10 being clamped in wearer due to the motion of wearer, cannot embody the function of each relief region.In addition, concavo-convex too obvious, the eye impression that lower limb during the wearing of disposable diaper 10 encloses can be deteriorated.
Launch extended configuration to refer to as shown in Figure 1 by the state during expansion of disposable diaper 10 entirety.Specifically, there is no the degree of rivel by the position of the rivel utilizing flexible member to stretch being elongated to range estimation and remaining on smooth platform, this state can be set to.
In addition, even if by only being taken out from disposable diaper 10 main body by the non-telescoping component (being the non-woven fabrics forming flank or bottom chip in the present embodiment) forming leg portion, also can amplitude A be confirmed.
The protuberance 110,120 that other parts of enclosing recess 35 from lower limb become convex outside the W of product width direction is formed in the front-end and back-end that lower limb encloses recess 35.
Be formed at the protuberance 130 of lower crotch 25 and recess 140 except relaxing for except the pressure of skin, also need not along the health of wearer.On the other hand, the lower limb forward end that encloses recess 35 and the position of holding rearward need the pressure that can relax further for skin.Therefore, by being set to the such shape of present embodiment, can reduce due to the motion of wearer to lower limb enclose load that pars contractilis 100 applies himself, and prevent the pressure for skin from concentrating on specific part.
Because recess 125 becomes concavity in the mode of enclosing the curve S 1 of extension along the lower limb along wearer towards the center side of product width direction W, therefore, be easy to the pars inguinalis along wearer.Therefore, flexible sheet material 200 more fits in wearer, and no matter whether wearer moves, from the frontal cowl 20 of disposable diaper 10, all make lower crotch 25 stably along health.Such as, though when the lower limb due to wearer motion and when carrying out the such motion of the width of constriction absorber 40, recess 125 also continues to fit in pars inguinalis, the width of absorber 40 not constriction and can maintain wider state.Thus, preferably, there is the such recess of recess 125 in the position of the forward waist portion 20 of product length direction L central authorities than disposable diaper 10.
Protuberance 130 is formed in the position suitable with the lower crotch of wearer.Because lower crotch 25 is sandwiched between the cover lower limb mouth of wearer and cover lower limb mouth, the region that distance between cover lower limb mouth about being is also narrower, therefore, lower limb encloses pars contractilis 100 and is sandwiched between absorbent main body 15 and the health of wearer, is the part being easy to enter towards the inner side of disposable diaper 10.Thus, preferably, lower limb encloses pars contractilis 100 and covers health more extensively, and protuberance 130 can be utilized to prevent Excreta self-absorption main body 15 from leaking more reliably.In addition, as mentioned above, fit in pars inguinalis by recess 125, entering of protuberance 130 can be suppressed further.
Recess 140 and recess 160 are formed in the position than the waist portion 30 rearward of the center on the product length direction L of disposable diaper 10.Protuberance 150 is formed between recess 140 and recess 160.That is, recess 140 and recess 160 are formed on the L of product length direction with separating predetermined distance.Such shape can prevent from lower limb from enclosing pars contractilis 100 (or leg side rivel 80) when using magic tape 90 disposable diaper 10 to be dressed in the health of wearer being hooked in the health of wearer and wearing with cannot covering front waistline (abdominal part).
Recess 140 in order to when being encountered abdominal part by lower crotch from the buttocks of wearer lower limb enclose recess 35 narrow lower crotch not hook formed.In addition, recess 160 is hooked in the health of wearer and the lower limb that cannot be fixed on correct position and rear waist portion 30 side encloses pars contractilis 100 self-adhesion cingulum 90 wears with ejecting and formed in order to the lower limb of waist portion 30 side after preventing when the magic tape 90 of the sidepiece by waist portion 30 after being present in is fixed on object tape 65 encloses pars contractilis 100.Be hooked in the health of wearer if lower limb encloses pars contractilis 100 and wear with ejecting, then due to the motion of the lower limb of wearer, to the direction misplaced, power is applied down to disposable diaper 10, therefore, even if utilize magic tape 90 to remain on waistline by disposable diaper 10, also be easy to misplace, therefore unsatisfactory.
Protuberance 150 is formed for the pressure from the position suitable with the buttocks of wearer to the skin of the position suitable with back to together mainly relax with adjacent recess 140 and recess 160.Further, because protuberance 150 covers the buttocks of wearer more extensively, therefore improve outward appearance, and by covering health more extensively, the reassurance of dislocation being difficult to occur excremental leakage, disposable diaper 10 can be given.
In addition, in the above-described embodiment, as shown in Figure 3, form flexible sheet material 200 that lower limb encloses pars contractilis 100 and extend to end outside the W of product width direction, but consider the easiness etc. of manufacture, flexible sheet material 200 also can extend to the end outside the W of product width direction.That is, the end outside the product width direction W of flexible sheet material 200 also can be positioned at end outside than the product width direction W of bottom chip 60, leg side rivel 80 etc. by the position inside the W of product width direction.In addition, in this case, the distance between the end outside the end outside the product width direction W of flexible sheet material 200 and the product width direction W of bottom chip 60, leg side rivel 80 etc. is preferably below 7mm.
In addition, in the above-described embodiment, be illustrated for the disposable diaper being provided with magic tape 90 style of opening, but the present invention also can be applied to the disposable diaper of Briefs type.
Like this, self-evident, the present invention is included in this various embodiments etc. do not recorded.Thus, protection scope of the present invention is only determined by the technical characteristic of appropriate claims according to the above description.
In addition, the full content of No. 2012-104179, Japan's patent application (application on April 27th, 2012) is by referring to being incorporated into this case description.
utilizability in industry
Can provide a kind of prevent Excreta from leaking near lower crotch and further increase the disposable diaper of the comfortableness of wearer.
description of reference numerals
10, disposable diaper; 15, absorbent main body; 20, frontal cowl; 25, lower crotch; 30, rear waist portion; 35, lower limb encloses recess; 40, absorber; 40a, absorbent core; 40b, core covering; 50, positive dough sheet; 55, leakproof sheet material; 60, bottom chip; 65, object tape; 70, flank; 80, leg side rivel; 90, magic tape; 100, lower limb encloses pars contractilis; 110,120,130,150, protuberance; 125,140,160, recess; 200, flexible sheet material; R1, repeat region; R2, non-duplicate region.
Claims (3)
1. a disposable diaper, it has frontal cowl, rear waist portion and lower crotch, and this disposable diaper possesses the absorbent main body of the lengthwise of the absorber comprising liquid retainability and is located at the flank of the side edge part on the product width direction of above-mentioned absorbent main body,
Above-mentioned flank is formed the lower limb recessed towards the center on the product width direction of above-mentioned absorbent main body and encloses recess, wherein,
This disposable diaper possesses:
Leakproof sheet material, it is liquid-impermeable, is located at than the position of above-mentioned absorbent main body by non-skin bearing surface side; And
Pair of leg encloses pars contractilis, and it is located at the side end on the product width direction of above-mentioned flank, extend being formed with above-mentioned lower limb and enclosing in the region of recess, and its part at least can be stretched along product length direction along product length direction,
Above-mentioned leakproof sheet material to have when the overlooking of above-mentioned disposable diaper outside the product length direction of to enclose the overlapping repeat region of pars contractilis with above-mentioned lower limb and being positioned at above-mentioned repeat region and does not enclose the overlapping non-duplicate region of pars contractilis with above-mentioned lower limb,
Above-mentioned repeat region is formed in an above-mentioned lower limb and encloses the narrowest part of distance on product width direction that pars contractilis and another above-mentioned lower limb enclose between pars contractilis and the central part be formed on the product length direction of disposable diaper, and go and constriction along with outside product length direction
Be formed in an above-mentioned lower limb and enclose the large part of distance that distance on product width direction that pars contractilis and another above-mentioned lower limb enclose between pars contractilis encloses on product width direction that pars contractilis and another above-mentioned lower limb enclose between pars contractilis than an above-mentioned lower limb of above-mentioned repeat region outside the product length direction that above-mentioned non-duplicate region is formed in above-mentioned repeat region
The ora terminalis that above-mentioned lower limb encloses on the product width direction of pars contractilis is meander-like in product length direction,
Above-mentioned lower limb encloses ora terminalis on the product width direction of pars contractilis and distance by the center on the product width direction of above-mentioned disposable diaper and between the straight line being parallel to product length direction changes towards above-mentioned rear waist portion along with from above-mentioned frontal cowl,
Above-mentioned distance changes the quantity of the flex point of minimizing into from increasing, above-mentioned distance is set to multiple from reducing the quantity changing the flex point of increase into respectively,
The protuberance utilizing the change of above-mentioned distance to be formed at least is located at above-mentioned lower crotch.
2. disposable diaper according to claim 1, wherein,
Above-mentioned lower limb encloses pars contractilis and is made up of the elastic component of lamellar, and extends to above-mentioned lower limb and enclose end on the product length direction of recess,
Above-mentioned repeat region is configured in the position in the inner part, end of to enclose than above-mentioned lower limb on the product length direction of recess.
3. disposable diaper according to claim 1 and 2, wherein,
Above-mentioned lower limb encloses pars contractilis and forms by a pair non-telescoping sheet material with by the flexible member of above-mentioned a pair non-telescoping sheet clamping, configures with the state of having extended on product length direction.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012104179A JP5291225B1 (en) | 2012-04-27 | 2012-04-27 | Disposable diapers |
| JP2012-104179 | 2012-04-27 | ||
| PCT/JP2013/062249 WO2013161956A1 (en) | 2012-04-27 | 2013-04-25 | Disposable diaper |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104254311A CN104254311A (en) | 2014-12-31 |
| CN104254311B true CN104254311B (en) | 2016-04-27 |
Family
ID=49396699
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201380022257.0A Active CN104254311B (en) | 2012-04-27 | 2013-04-25 | Disposable diaper |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JP5291225B1 (en) |
| CN (1) | CN104254311B (en) |
| AR (1) | AR091345A1 (en) |
| TW (1) | TW201404383A (en) |
| WO (1) | WO2013161956A1 (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6400945B2 (en) * | 2014-05-27 | 2018-10-03 | ユニ・チャーム株式会社 | Deployable disposable diapers for low weight children under 3000 grams |
| JP5701437B1 (en) * | 2014-07-25 | 2015-04-15 | ユニ・チャーム株式会社 | Disposable diapers |
| JP2016030203A (en) * | 2014-12-25 | 2016-03-07 | ユニ・チャーム株式会社 | Disposable diaper |
| WO2016104753A1 (en) * | 2014-12-26 | 2016-06-30 | ユニ・チャーム株式会社 | Disposable diaper |
| US20170000656A1 (en) | 2015-06-30 | 2017-01-05 | The Procter & Gamble Company | Absorbent article with elasticized region |
| JP6429741B2 (en) * | 2015-06-30 | 2018-11-28 | ユニ・チャーム株式会社 | Disposable pants-type diapers |
| US10561542B2 (en) | 2015-06-30 | 2020-02-18 | The Procter & Gamble Company | Absorbent article with elasticized region |
| EP3316840B1 (en) | 2015-06-30 | 2019-03-20 | The Procter and Gamble Company | Absorbent article with elasticized waist region |
| CN107809989B (en) | 2015-06-30 | 2020-12-11 | 宝洁公司 | Chassis design for absorbent articles |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4770656A (en) * | 1986-12-31 | 1988-09-13 | Kimberly-Clark Corporation | Routing of leg elastic to reduce stresses in a stretchable outer diaper cover |
| US4846825A (en) * | 1987-10-30 | 1989-07-11 | Kimberly-Clark Corporation | Diapers with elasticized side pockets |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10243961A (en) * | 1997-03-06 | 1998-09-14 | Oji Paper Co Ltd | Disposable diaper |
| JPH1147189A (en) * | 1997-08-01 | 1999-02-23 | Oji Paper Co Ltd | Disposable diaper |
| JP4166923B2 (en) * | 2000-04-28 | 2008-10-15 | 花王株式会社 | Absorbent articles |
| JP3820100B2 (en) * | 2000-11-24 | 2006-09-13 | ユニ・チャーム株式会社 | Disposable wearing items |
| JP3750593B2 (en) * | 2001-11-29 | 2006-03-01 | 王子製紙株式会社 | Disposable diapers |
| JP2004000344A (en) * | 2002-05-31 | 2004-01-08 | Kao Corp | Shorts-type diaper |
| US7875080B2 (en) * | 2004-11-10 | 2011-01-25 | Warsaw Orthopedic, Inc. | Intervertebral spacer |
| JP4679128B2 (en) * | 2004-12-10 | 2011-04-27 | 花王株式会社 | Sanitary shorts |
| JP4693530B2 (en) * | 2005-07-12 | 2011-06-01 | 花王株式会社 | Disposable diaper and method for producing the same |
-
2012
- 2012-04-27 JP JP2012104179A patent/JP5291225B1/en active Active
-
2013
- 2013-04-25 CN CN201380022257.0A patent/CN104254311B/en active Active
- 2013-04-25 TW TW102114828A patent/TW201404383A/en unknown
- 2013-04-25 WO PCT/JP2013/062249 patent/WO2013161956A1/en active Application Filing
- 2013-04-26 AR ARP130101415 patent/AR091345A1/en unknown
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4770656A (en) * | 1986-12-31 | 1988-09-13 | Kimberly-Clark Corporation | Routing of leg elastic to reduce stresses in a stretchable outer diaper cover |
| US4846825A (en) * | 1987-10-30 | 1989-07-11 | Kimberly-Clark Corporation | Diapers with elasticized side pockets |
Also Published As
| Publication number | Publication date |
|---|---|
| JP5291225B1 (en) | 2013-09-18 |
| WO2013161956A1 (en) | 2013-10-31 |
| AR091345A1 (en) | 2015-01-28 |
| JP2013230263A (en) | 2013-11-14 |
| CN104254311A (en) | 2014-12-31 |
| TW201404383A (en) | 2014-02-01 |
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