CN102316838A - Absorbent article - Google Patents
Absorbent article Download PDFInfo
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- CN102316838A CN102316838A CN2010800082124A CN201080008212A CN102316838A CN 102316838 A CN102316838 A CN 102316838A CN 2010800082124 A CN2010800082124 A CN 2010800082124A CN 201080008212 A CN201080008212 A CN 201080008212A CN 102316838 A CN102316838 A CN 102316838A
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- Prior art keywords
- sheet material
- hydrophilic sheet
- disposable diaper
- inboard
- outside
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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
- A61F13/49007—Form-fitting, self-adjusting disposable diapers
- A61F13/49009—Form-fitting, self-adjusting disposable diapers with elastic means
- A61F13/49011—Form-fitting, self-adjusting disposable diapers with elastic means the elastic means is located at the waist region
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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
- A61F13/49466—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 waist region
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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)
- Orthopedics, Nursing, And Contraception (AREA)
Abstract
A disposable diaper (1A) is equipped with a central absorbent body (4) spanning from a back-side section (A) to an abdomen-side section (B), and with waist flaps (6a, 6b) having a hydrophilic sheet (7) disposed therein. The hydrophilic sheet (7) has an inner hydrophilic sheet (71) and an outer hydrophilic sheet (72) disposed on the side of a surface not in contact with the skin. The outer hydrophilic sheet (72) uses elements having greater liquid diffusion properties that the inner hydrophilic sheet (71). The inner hydrophilic sheet (71) and outer hydrophilic sheet (72) are disposed in a waist region (A1) that includes the region between the edge (61) of the wast flap (6a) on the back-side section (A) and the edge (41) of the absorbent body (4). On the waist flap (6a), gathers that extend in the width direction (X direction) of the diaper (1A) are formed in an elastic waist member (8) disposed within the waist flap (6a).
Description
Technical field
The present invention relates to the absorbent commodity that possesses pars contractilis of disposable diaper etc.
Background technology
At present, known have the sporadic etc. of the belt portion (waist flaps) of improving (typically referring to from the absorbent main body that the comprises absorbent core part to the length direction outside) part antiperspirant, realizes the disposable diaper that prevents that eczema, miliaria, macule etc. from taking place.For example, the disposable diaper that on the inner surface of belt portion, engages aeration absorbing sweat sheet is disclosed in the patent documentation 1.In addition, in patent documentation 2, disclose on the inner surface of belt portion to be provided with and had the disposable diaper of arranging at width with long stapled hydrophilic fabrics.
But, in the patent documentation 1 described disposable diaper, the serve as reasons upper strata that comprises hydrophilic fibre and form of absorbing sweat sheet with lower floor that the hydrophobic fibre of its one lamination constitutes, the antiperspirant that the absorbing sweat sheet absorbs remains in inside easily, and the absorbing sweat sheet becomes moisture state easily.So, if the skin Long contact time of absorbing sweat sheet and user, the probability that on skin, produces miliaria etc. is high.
In addition; Disposable diaper described in the patent documentation 2; Belt portion has hydrophobic outer layer sheet, hydrophobic inner layer piece and the structure of the elastomeric element that between these synusia, is provided with, and disposable diaper is provided with on hydrophobic inner layer piece and opens fine hydrophilic fabrics and form.So, hydrophilic fabrics is formed by long fibre, the contraction of the elastomeric element during therefore through use; Distance between long fibre strengthens; The mobility of the antiperspirant in the hydrophilic fabrics reduces, and the contraction of elastomeric element is carried out repeatedly during owing to use, separates between the long fibre; Be difficult to follow flexible, the situation that exists the mobility of the antiperspirant in the hydrophilic fabrics further to reduce.
Patent documentation 1: TOHKEMY 2000-189454 communique
Patent documentation 2: TOHKEMY 2006-141549 communique
Summary of the invention
Therefore, problem of the present invention relates to, and improves the diffusibility of antiperspirant, and realization prevents the absorbent commodity of the generation of eczema, miliaria, macule etc.
The present invention is a kind of disposable diaper, and it possesses absorber from drosal part and to veutro portion in the central authorities of disposable diaper, in belt portion the hydrophilic sheet material is set.
Above-mentioned hydrophilic sheet material has: the inboard hydrophilic sheet material that forms skin abutment face; Outside hydrophilic sheet material with non-skin abutment face one side that is arranged on this inboard hydrophilic sheet material.
Above-mentioned inboard hydrophilic sheet material and above-mentioned outside hydrophilic sheet material are arranged on the lumbar region in the zone between the end limit of end limit and above-mentioned absorber of the above-mentioned belt portion that comprises above-mentioned drosal part.
Comprising the above-mentioned belt portion of above-mentioned outside hydrophilic sheet material and above-mentioned inboard hydrophilic sheet material, the state that stretches with the width at above-mentioned disposable diaper forms fold by the waist elastic members of the inside that is arranged on above-mentioned belt portion.
Above-mentioned outside hydrophilic sheet material is higher than the liquid diffusibility of above-mentioned inboard hydrophilic sheet material.
Description of drawings
Fig. 1 is for expression launches, the expansion plane graph of the state of the flat type disposable diaper of stretching, extension first embodiment of the invention.
Fig. 2 is the Y1-Y1 line sectional view of Fig. 1.
Fig. 3 is the amplification view of the outside hydrophilic sheet material that uses of diaper shown in Figure 1.
Fig. 4 is the axonometric chart of the pull-on disposable diaper of expression second embodiment of the present invention.
Fig. 5 is for expression pull-on disposable diaper shown in Figure 4 launches, the expansion plane graph of extended configuration.
Fig. 6 is the Y2-Y2 line sectional view of Fig. 5.
Fig. 7 is the amplification view of the inboard hydrophilic sheet material that uses of diaper shown in Figure 4.
Fig. 8 is the expansion of the pull-on disposable diaper of expression third embodiment of the invention, the expansion plane graph of extended configuration.
Fig. 9 is the Y3-Y3 line sectional view of Fig. 8.
Figure 10 is for the pull-on disposable diaper of expression the 4th embodiment of the present invention launches, the expansion plane graph of extended configuration.
Figure 11 is the Y4-Y4 line sectional view of Figure 10.
Figure 12 blocks the axonometric chart of outsourcing material of the naturalness of pull-on disposable diaper shown in Figure 10 for expression part.
Figure 13 is the plane graph of the outsourcing material extended configuration of expression pull-on disposable diaper shown in Figure 12.
The specific embodiment
Below, based on Fig. 1～Fig. 3, preferred first embodiment of disposable diaper of the present invention is described.
The disposable diaper 1A of first embodiment (below; Be called " diaper 1A ") like Fig. 1～shown in Figure 2 forming: the drosal part A of the dorsal part that is positioned at the wearer when wearing to the width of the disposable diaper in the whole zone of the B of veutro portion of the veutro that is positioned at the wearer (below; Be called " directions X "; Directions X is meant: with the vertical direction of centre line C L of extending along the length direction of diaper 1A) central authorities have absorber 4, at the 6a of belt portion, 6b hydrophilic sheet material 7 is set.Hydrophilic sheet material 7, as shown in Figure 2, have: form skin abutment face inboard hydrophilic sheet material 71, be arranged on the outside hydrophilic sheet material 72 of non-skin abutment face one side of inboard hydrophilic sheet material 71.The higher material of diffusibility that outside hydrophilic sheet material 72 uses than inboard hydrophilic sheet material 71 liquid.Inboard hydrophilic sheet material 71 and outside hydrophilic sheet material 72 like Fig. 1～shown in Figure 2, at least, are arranged on the lumbar region A1 in the zone between the end limit 41 of end limit 61 and absorber 4 of the 6a of belt portion that comprises drosal part A.The 6a of belt portion comprising outside hydrophilic sheet material 72 and inboard hydrophilic sheet material 71 is formed with fold, and this fold is arranged on the inner waist elastic members 8 of the 6a of belt portion by the state that stretches with the width (directions X) at diaper 1A and forms.
Specify diaper 1A.Diaper 1A, as shown in Figure 1, the disposable diaper for deploying type has: when wearing the drosal part A of wearer's dorsal part, the B of veutro portion of wearer's veutro and be arranged at drosal part A and the B of veutro portion between crotch part C.Diaper 1A, as shown in Figure 1, have the pair of right and left pull stap 9,9 that is connected with on the limit, the left and right sides of drosal part A.Diaper 1A, as shown in Figure 1, have the sticking target band (not shown) that ends pull stap 6 in the outside of the B of veutro portion.
In addition, diaper 1A, as shown in Figure 1, expanding under the plane state, have long shape at equidirectional with absorber 4.
Among the disposable diaper 1A of first embodiment, constitute the inboard hydrophilic sheet material 71 of hydrophilic sheet material 7, form face sheet 2.That is, among the diaper 1A, face sheet 2 like Fig. 1, shown in 2, is inboard hydrophilic sheet material 71.
In addition, the inboard hydrophilic sheet material of possess hydrophilic property sheet material 7 71 with after the outside hydrophilic sheet material 72 stated, be the sheet material of fiber interweaving state, for example be non-woven fabrics, rather than the not interlacing fabric state of fiber.
Among the disposable diaper 1A of first embodiment; Outside hydrophilic sheet material 72; Like Fig. 1, shown in 2, be separately positioned on the lumbar region A1 in the zone between the end limit 41 of end limit 61 and absorber 4 of the 6a of belt portion that comprises drosal part A and comprise the lumbar region B1 in the zone between the end limit 41 of end limit 61 and absorber 4 of the 6b of belt portion of the B of veutro portion.Outside hydrophilic sheet material 72 like Fig. 1, shown in 2, is arranged on the inside of the 6b of belt portion of the 6a of belt portion and the B of veutro portion of drosal part A, specifically, is arranged between inboard hydrophilic sheet material 71 and the back-sheet 3.The outside hydrophilic sheet material 72 of drosal part A side; At width (directions X); The pull stap 9 that is provided with respectively across portion on width (directions X) limit, the left and right sides of drosal part A, between 9 and be provided with, in length direction (Y direction), the end limit 41 of crossing absorber 4 from the end limit 61 of the 6a of belt portion of drosal part A extends on the absorber 4.The outside hydrophilic sheet material 72 of the B of veutro portion side is also grown with wide, same with the outside hydrophilic sheet material 72 of above-mentioned drosal part A side.
In the disposable diaper 1A of first embodiment, outside hydrophilic sheet material 72, as shown in Figure 2, form by 2 blocks of sheet materials.2 blocks of outside hydrophilic sheet materials 72, the identical size of shape is identical, all uses than inboard hydrophilic sheet material 71 (face sheet 2) material that the liquid diffusibility is higher.The liquid diffusibility is measured through the assay method of following liquid diffusion area.
< assay method of liquid diffusion area >
On acrylic resin board, place the inboard hydrophilic sheet material 71 that four limits are cut to 100mm * 100mm and the sample of outside hydrophilic sheet material 72 respectively, above that from the top 30mm to its water 0.05mL that drips painted.After 10 minutes, use image analysis apparatus, measure the diffusion area of photo tint.The measured value that obtains is big more, explains that the diffusibility of liquid is high more.
2 blocks of outside hydrophilic sheet materials 72, as shown in Figure 3, its structural fibers all is orientated at the width (directions X) of diaper 1A.The orientation of fiber, from the viewpoint to the intensity of the diffusibility of width (directions X) and width (directions X), the degree of orientation is preferably more than 1, more preferably more than 1.2.The degree of orientation uses the Microwave molecular orientation analyzer MOA-2001A of KANZAKI company to measure.Respectively as sample, the meansigma methods of measuring in each sample at 3 is the degree of orientation with the outside hydrophilic sheet material that is cut to length 100mm * width 50mm 72 and inboard hydrophilic sheet material 71.
In addition, the inboard hydrophilic sheet material 71 (face sheet 2) among the diaper 1A is in length direction (Y direction) orientation (non-diagram).
Waist elastic members 8 like Fig. 1, shown in 2, with the state that stretches at width (directions X), is arranged on the inside of the 6b of belt portion of the 6a of belt portion and the B of veutro portion of drosal part A.Among the disposable diaper 1A of first embodiment, the many waist elastic members 8 of 1～10 yarn shapes like Fig. 1, shown in 2, is arranged on 2 blocks of outside hydrophilic sheet materials 72, between 72, is set up in parallel intermittently at length direction (Y direction).Through the waist elastic members 8 of such setting, form fold on each at the 6b of belt portion of the 6a of belt portion of the drosal part A that comprises inboard hydrophilic sheet material 71 and outside hydrophilic sheet material 72 and the B of veutro portion.
The change of considering with wearer's health the abdominal circumference that seamlessly contacts, causes because of the variation of posture, breathing etc. is flexible, and the stretching, extension multiplying power of waist elastic members 8 is preferred 150%～300%, and more preferably 200%～250%.So-called here stretching, extension multiplying power is that the length when not stretching is that A (mm), the length when stretching are B (mm), the value of trying to achieve by following formula.
Stretch multiplying power (%)=(B/A) * 100
Limit, the left and right sides from the length direction (Y direction) of absorber 4; Face sheet 2 (inboard hydrophilic sheet material 71) and back-sheet 3 are as shown in Figure 1 respectively; Extend in the outside to width (directions X); Extended face sheet 2 engages with extended back-sheet 3, forms a pair of bottom bands of trouser legs 10,10.The lower limb fold that 1～5 yarn shapes is set at the bottom bands of trouser legs 10,10 forms the elastic telescopic parts 10a of usefulness, and the lower limb fold forms the elastic telescopic parts 10a of usefulness, is fixed by face sheet 2 (inboard hydrophilic sheet material 71) and back-sheet 3 clampings.Thus, shrink, form the lower limb fold at the crotch part C of diaper 1 through elastic telescopic parts 10a.
In the left and right sides portion of the length direction (Y direction) of diaper 1A, be respectively arranged with the sheet material 11,11 that three-dimensional fold forms usefulness with the mode of the sidepiece that covers face sheet 2.Each three-dimensional protection forms with sheet material 11, and in the zone of the Rack of the limit portion in the outside of the both ends of length direction (Y direction) and width (directions X), the inboard that is fixed on face sheet 2 and width (directions X) is a free state.Three-dimensional protection forms the sheet material 11 of usefulness, the limit portion in the inboard of width (directions X), promptly; Lean on the limit portion of centre line C L; Elastomeric element 11a with three-dimensional protection formation usefulness is when wearing, through the contractility of this elastomeric element; The free state portion of the inboard of the width (directions X) of the sheet material 11 of three-dimensional fold formation usefulness erects, and the wearer's in diaper 1A skin abutment face one side forms three-dimensional fold.
Formation material to the disposable diaper 1A of first embodiment describes.
Form the viewpoint of thinner fold easily from improving pliability, contraction through waist elastic members 8, when minimizing contact with skin to the wearer bring the viewpoint of sense of discomfort, the antiperspirant of accumulating in the space between the fiber is moved to through stretching of fold easily outside the viewpoint of hydrophilic sheet material 72; Inboard hydrophilic sheet material 71, the preferred material that uses than the easier compression of outside hydrophilic sheet material 72.Easily compression is meant the compression of thickness direction compression sheet material easily.
From rapidly antiperspirant being moved to the viewpoint of non-skin abutment face one side through capillary force from skin abutment face one side, outside hydrophilic sheet material 72 preferably uses than the high material of inboard hydrophilic sheet material 71 density.As hydrophilic sheet material 7, when using the sheet material of hydrophilic fibre, the density of outside hydrophilic sheet material 72 is preferably 0.05～0.3g/cm
3, 0.1～0.2g/cm more preferably
3Under the situation of the sheet material of use hydrophilic fibre, the paper weight of face sheet 2 (inboard hydrophilic sheet material 71) is preferably 0.01～0.2g/cm
3, 0.02～0.1g/cm more preferably
3
From by the antiperspirant of skin abutment face one side shifting not adverse current, through the viewpoint that outside hydrophilic sheet material 72 distributes body fluid, outside hydrophilic sheet material 72 preferably uses than inboard hydrophilic sheet material 71 sporadic higher materials.Liquid sporadic measured through the assay method of following emission of liquid property.
< assay method of emission of liquid property >
On acrylic resin board, spraying 0.2g distilled water.Each sample of the inboard hydrophilic sheet material 71 that four limits is cut to 100mm * 100mm and outside hydrophilic sheet material 72 carries to be put on the distilled water of spraying, under the isoperibol of 20 ℃ of temperature, humidity 65%RH, and the amount of distributing distilled water with weight change determination.Divided by the distilled water (0.2g) at initial stage, its ratio is the value of emission of liquid property to the emissions of distilled water after 10 minutes (weight-sample weight originally of the sample that comprises distilled water after 10 minutes).Measured value is the meansigma methods of n=3.
Form the sheet material 11 of usefulness as back-sheet 3, absorber 4 and the solid protection that forms stereo protection, usually so long as the material that in the absorbent commodity of disposable diaper etc., uses, just not special the qualification used.For example, as back-sheet 3, can use the laminate of resin film, resin film and non-woven fabrics etc.As absorber 4, can use paper pulp etc. fibrous material fiber assembly or upload at these and to hold the material that superabsorbent polymer is obtained by the clad material parcel of cotton paper, water penetration non-woven fabrics etc.Protection forms the sheet material 11 of usefulness as solid, can use retractility thin film, non-woven fabrics, fabric or these laminated etc.
Form the elastomeric element 10a of usefulness and the elastomeric element 11a that three-dimensional protection forms usefulness as waist elastic members 8, leg creases, usually, so long as the material that in the absorbent commodity of disposable diaper etc., uses, just not special the qualification used.For example, can use the material etc. of the retractility that the polyethylene-alpha olefin copolymer etc. of natural rubber, polyurethane, polystyrene-poly isoprene copolymer, polystyrene-poly isoprene copolymer, polystyrene-poly butadiene copolymer, ethyl acrylate-ethylene etc. constitutes.
As the thread gluing material that forms pull stap 9, so long as just not special restriction that the absorbent commodity of common disposable diaper etc. uses used.For example; As the thread gluing material, can use convex part in " Magic Tape (registered trade mark) " (production of Kuraray company), " Quicklon (registered trade mark) " (production of YKK company), " Magicloth (registered trade mark) " (production of Kanebo Bell-Touch company) etc. etc.As the target band, can constitute with the annular material that combines the bonded surface texture of projection of thread gluing material by having, as such annular material, can use through pushing the thread gluing material, can glue the only material of thread gluing material, the special restriction that does not have.For example can use the cloudy type parts in the above-mentioned various known mechanical face securing member.In addition, the outer surface of the B of veutro portion (the non-skin abutment face of back-sheet 3) combines the projection can direct bonded material with the thread gluing material, for example can be made up of the good non-woven fabrics of associativity.
Then, the action effect to the diaper 1A of first embodiment that uses the invention described above describes.
In addition, diaper 1A, as shown in Figure 3, the fiber formation of 2 blocks of outside hydrophilic sheet materials 72 all is orientated at the width (directions X) of diaper 1A, so the liquid diffusibility is higher, makes the antiperspirant that moves to outside hydrophilic sheet material 72 more promptly to spread.So, be difficult to keep here antiperspirant, be difficult to become moistening state, can prevent the generation of eczema, miliaria, macule etc. at the inboard hydrophilic sheet material 71 of the skin abutment face that forms belt portion 6.
Then, based on Fig. 4～Fig. 6, the disposable diaper of second embodiment of the invention is described.
The disposable diaper 1B of second embodiment describes to the difference with the disposable diaper 1A of first embodiment.The point that does not specify, identical with the disposable diaper 1A of first embodiment, be suitable for explanation to the disposable diaper 1A of first embodiment.
The disposable diaper 1B of second embodiment (below, be called " diaper 1B "), like Fig. 4, shown in Figure 5, be the disposable diaper of Briefs type.Inboard hydrophilic sheet material 71 and the outside hydrophilic sheet material 72 of diaper 1B; On the lumbar region of drosal part A A1 turns back the skin abutment face of the return portion 520 that forms, be arranged on the width (directions X) of diaper 1B at the outer layer sheet 52 of the outsourcing material that will constitute diaper 1B 5.The waist elastic members 8 of diaper 1B is arranged on outer layer sheet 52 and is arranged between the internal layer sheet material 51 of skin abutment face one side of outer layer sheet 52.
Among the disposable diaper 1B of second embodiment, the characteristics of inboard hydrophilic sheet material 71 and outside hydrophilic sheet material 72 are, with the sheet material that constitutes outsourcing material 5 with constitute after the sheet material of the absorbent main body 40 stated be different sheet materials.
1B is described in detail to diaper.Diaper 1B such as Fig. 5, shown in Figure 6 possess: have face sheet 2, back-sheet 3, between two sheet materials 2, the absorbent main body 40 of absorber 4 between 3; Extend and be positioned at non-skin abutment face one side of absorbent main body 40, the outsourcing material 5 of joint attaching absorbent main body 40 across whole zone, the outside of absorbent main body 40; The dual-side of the dual-side of drosal part A and the B of veutro portion in the outsourcing material 5; Known joint method through heat-sealing, high frequency sealing, ultrasonic sealing etc. is bonded with each other, and forms side seal 12,12 (with reference to Fig. 4) of portion.Thus, as shown in Figure 4, diaper 1B forms waist opening portion 13 and pair of leg peristome 14,14.And, be crotch part C between drosal part A and the B of veutro portion.
Absorbent main body 40 is as shown in Figure 5, and rectangular-shaped for lengthwise, this length direction (Y direction) is consistent with the length direction (Y direction) of diaper 1, with from the drosal part A of diaper 1 and to the mode of the B of veutro portion, engages with the central part of the width (directions X) of outsourcing material 5.As shown in Figure 5; One is provided with the sheet material 11,11 that three-dimensional protection forms usefulness respectively in the left and right sides of absorbent main body 40, and three-dimensional protection forms in each the limit portion of inboard of width (directions X) of sheet material 11 of usefulness, and the elastomeric element 11a that three-dimensional protection forms usefulness is with the extended configuration setting; When wearing; The one in the left and right sides of absorbent main body 40 through the contractility of this elastomeric element 11a, forms three-dimensional fold.
Outsourcing material 5, as shown in Figure 6, constitute by 2 blocks of sheet materials, specifically, outsourcing material 5 is made up of the laminate of outer layer sheet 52 and internal layer sheet material 51, and outer layer sheet 52 constitutes the outermost of diaper 1B.Internal layer sheet material 51 and outer layer sheet 52 adjacency are arranged on inner face one side of diaper 1B.As shown in Figure 5, the profile of the side portion of inner layer piece 51 materials and outer layer sheet 52 is identical shaped, but different in the shape of length direction (Y direction).Specifically as shown in Figure 6, outer layer sheet 52 has the extension that extend at each fore-and-aft direction on length direction (Y direction) limit, front and back end from inboard sheet material 51.The extension of outer layer sheet 52 is provided with after the attaching absorbent main body 40 on the internal layer sheet material 51 of packet materials 5 respectively outside, is turned back in absorbent main body 40 1 sides with the mode of the front and back end that covers absorbent main body 40, constitutes return portion 520 (with reference to Fig. 6).As shown in Figure 5, the free end limit of return portion 520 extends to leg opening portion, promptly extends to the position in the whole zone that covers side seal portion 12, arrives on the absorber 4.So, diaper 1B is extended at each fore-and-aft direction by the limit, front and back end 41,41 from absorber 4, forms the belt 6a of portion, 6b (with reference to Fig. 6).
Among the disposable diaper 1B of second embodiment; Like Fig. 5, shown in 6; The inboard hydrophilic sheet material 71 that constitutes hydrophilic sheet material 7 is the sheet material of identical shaped identical size with outside hydrophilic sheet material 72, on the skin abutment face of the return portion 520 of drosal part A side, is arranged on width (directions X).The inboard hydrophilic sheet material 71 of diaper 1B is arranged on the skin abutment face of outside hydrophilic sheet material 72.Among the diaper 1B, like Fig. 5, shown in 6, inboard hydrophilic sheet material 71 and outside hydrophilic sheet material 72 are arranged on the lumbar region A1 in the zone between the end limit 41 of end limit 61 and absorber 4 of the 6a of belt portion that comprises drosal part A.Like Fig. 5, shown in 6, inboard hydrophilic sheet material 71 and outside hydrophilic sheet material 72 be at width (directions X), with wideer than the width of absorbent main body 40, extends than side seal portion 12, the narrow mode in interval between 12.
Like Fig. 5, shown in 6, inboard hydrophilic sheet material 71 and outside hydrophilic sheet material 72 in length direction (Y direction), extend to the zone on the free end limit that is no more than return portion 520 from the end limit 61 of the 6a of belt portion of drosal part A.So; Each of inboard hydrophilic sheet material 71 and outside hydrophilic sheet material 72 is overlapping in return portion 520; Be no more than the free end limit of return portion 520; Thus, inboard hydrophilic sheet material 71 and outside hydrophilic sheet material 72 do not contact with face sheet 2 respectively, can prevent excretory urine, just not pollute inboard hydrophilic sheet material 71 and outside hydrophilic sheet material 72.
The disposable diaper 1B of second embodiment; For example being used under baby's the situation, like Fig. 5, shown in 6, inboard hydrophilic sheet material 71 and outside hydrophilic sheet material 72; In length direction (Y direction); Cross the end limit of absorbent main body 40 from the end limit 61 of the 6a of belt portion of drosal part A, the end limit 41 of further crossing absorber 4 extends on the absorber 4.In addition; The disposable diaper 1B of second embodiment, for example under the situation that the adult uses, inboard hydrophilic sheet material 71 and outside hydrophilic sheet material 72; In length direction (Y direction), extend to the end limit of absorbent main body 40 from the end limit 61 of the 6a of belt portion of drosal part A near.So, inboard hydrophilic sheet material 71 and outside hydrophilic sheet material 72 respectively not with situation that absorbent main body 40 overlaps under, can prevent that urine that absorbability main body 40 absorbs etc. from oozing out into inboard hydrophilic sheet material 71 and outside hydrophilic sheet material 72 respectively.Therefore, increased at the state that has absorbed urine owing to end under the situation such as h.d. of wearer's deadweight until absorbent main body 40, more effective.
The inboard hydrophilic sheet material 71 of the disposable diaper 1B of second embodiment and outside hydrophilic sheet material 72 are all like Fig. 3, shown in Figure 7, and this constitutes width (directions X) orientation of fiber at diaper 1A.From rapidly antiperspirant being moved to the viewpoint of non-skin abutment face one side through capillary force from skin abutment face one side, outside hydrophilic sheet material 72 is preferred to use the material (with reference to Fig. 3, Fig. 7) higher than inboard hydrophilic sheet material 71 density.
Among the disposable diaper 1B of second embodiment, as shown in Figure 6, the state of waist elastic members 8 to stretch at width (directions X) is arranged on the inside of the 6b of belt portion of the 6a of belt portion and the B of veutro portion of drosal part A.Among the disposable diaper 1B of second embodiment, like Fig. 5, shown in Figure 6, the many waist elastic members 8 of 1～30 yarn shape are arranged between the internal layer sheet material 51 and outer layer sheet 52 that constitutes outsourcing material 5, intermittently are set up in parallel at length direction (Y direction).Through the waist elastic members 8 of setting like this, form fold at the 6a of belt portion of the drosal part A that comprises inboard hydrophilic sheet material 71 and outside hydrophilic sheet material 72 and the 6b of belt portion of the B of veutro portion respectively.
Formation material to the disposable diaper 1B of second embodiment describes.
The difference of pull-on disposable diaper 1A of pull-on disposable diaper 1B and first embodiment of second embodiment is described.There is not the point of special instruction, identical with the pull-on disposable diaper 1A of first embodiment.
As inboard hydrophilic sheet material 71 and outside hydrophilic sheet material 72, the sheet material of using hydrophilic and can carrying out the absorption maintenance of water.As its example, can enumerate the sheet material of hydrophilic fibre.As the hydrophilic sheet material 7 of diaper 1B, the incorporate sheet material that can use known joint methods such as utilizing binding agent, heat-sealing, high frequency sealing, ultrasonic sealing that inboard hydrophilic sheet material 71 and outside hydrophilic sheet material 72 are bonded with each other.
As outer layer sheet that constitutes outsourcing material 5 51 and internal layer sheet material 52, usually,, have no particular limits so long as the material that the absorbent commodity of disposable diaper etc. uses just can use.For example, as outer layer sheet 51 and internal layer sheet material 52, can use the non-woven fabrics of water proofing property etc.
When using the disposable diaper 1B of second embodiment of the invention described above, obtain same effect with the disposable diaper 1A of first embodiment.
Then, based on Fig. 8～9, the disposable diaper of the 3rd embodiment of the present invention is described.
The disposable diaper 1B of the 3rd embodiment is described, describes to difference with the disposable diaper 1C of the disposable diaper 1A of first embodiment or second embodiment.There is not the point that specifies, same with the disposable diaper 1B of the disposable diaper 1A of first embodiment or second embodiment, be suitable for the explanation of disposable diaper 1B of disposable diaper 1A or second embodiment of first embodiment.
The disposable diaper 1C of the 3rd embodiment (below, be called " diaper 1C "), 1B is same with diaper, is the disposable diaper (with reference to Fig. 4, Fig. 8) of Briefs type.As shown in Figure 9, inboard hydrophilic sheet material 71 constitutes: the outer layer sheet 52 that will constitute the outsourcing material 5 of diaper 1C is turned back respectively and the return portion 520 that forms at the lumbar region B1 of the lumbar region A1 of formation drosal part A and the B of veutro portion.As shown in Figure 9, outside hydrophilic sheet material 72 forms the internal layer sheet material 51 of skin abutment face one side that is arranged on outer layer sheet 52.Waist elastic members 8 is arranged between outer layer sheet 52 and the outside hydrophilic sheet material 72.
Among the disposable diaper 1C of the 3rd embodiment; Different with the disposable diaper 1B of second embodiment; Have following characteristic: inboard hydrophilic sheet material 71 is the return portion 520 that constitute the outer layer sheet 52 of outsourcing material 5, and outside hydrophilic sheet material 72 is the internal layer sheet materials 51 that constitute outsourcing material 5.
1C is elaborated to diaper.Diaper 1C like Fig. 8, shown in Figure 9, possesses the outsourcing material 5 that extends at the outside Zone Full to absorbent main body 40.Outsourcing material 5 like Fig. 8, shown in Figure 9, is made up of the laminate of outer layer sheet 52 with internal layer sheet material 51.Outer layer sheet 52, the outermost of formation diaper 1B.Internal layer sheet material 51 and outer layer sheet 52 adjacency are arranged on inner face one side of diaper 1B.The disposable diaper 1C of the 3rd embodiment, this inboard sheet material 51 are outside hydrophilic sheet materials 72.
As shown in Figure 8, the profile of the side portion of internal layer sheet material 51 (outside hydrophilic sheet material 72) and outer layer sheet 52 is identical shaped, but the shape of length direction (Y direction) is different.Specifically as shown in Figure 9, outer layer sheet 52 has from the limit, front and back end of the length direction (Y direction) of internal layer sheet material 51 (outside hydrophilic sheet material 72) respectively the extension that direction is forwards, backwards extended.After the extension of outer layer sheet 52 is provided with attaching absorbent main body 40 on the internal layer sheet material 51 of packet materials 5 (outside hydrophilic sheet material 72) respectively outside; Mode with the front and back end that covers absorbent main body 40 is turned back in absorbent main body 40 1 sides, becomes return portion 520 (with reference to Fig. 6).The disposable diaper 1C of the 3rd embodiment, this return portion 520 is inboard hydrophilic sheet material 71.The free end limit of return portion 520 (inboard hydrophilic sheet material 71); Cross the limit, rear and front end of absorbent main body 40 respectively from the end limit 61 of the 6b of belt portion of the end limit 61 of the 6a of belt portion of drosal part A and the B of veutro portion; Cross the limit, rear and front end 41 of absorber 4 more respectively, extend to respectively (with reference to Fig. 8, Fig. 9) on the absorber 4.
Among the disposable diaper 1C of the 3rd embodiment, as shown in Figure 8, the state of waist elastic members 8 to extend at width (directions X) is arranged on each the inside of the 6b of belt portion of the 6a of belt portion and the B of veutro portion of drosal part A.Among the disposable diaper 1C of the 3rd embodiment; The many waist elastic members 8 of 1～30 yarn shape; Like Fig. 8, shown in Figure 9, be arranged between the inner layer piece 51 (outside hydrophilic sheet material 72) and outer layer sheet 52 that constitutes outsourcing material 5, be set up in parallel intermittently at length direction (Y direction).Through the waist elastic members 8 of setting like this, respectively at the 6a of belt portion of the drosal part A that comprises inboard hydrophilic sheet material 71 (return portion 520 of outer layer sheet 52) and outside hydrophilic sheet material 72 (internal layer sheet material 51), form fold with the 6b of belt portion of the B of veutro portion.
The formation material of the disposable diaper 1C of the 3rd embodiment, same with the pull-on disposable diaper 1B of the pull-on disposable diaper 1A of first embodiment or second embodiment.That is, inboard hydrophilic sheet material 71 is same with the outer layer sheet 52 that constitutes outsourcing material 5, and outside hydrophilic sheet material 72 is same with the internal layer sheet material 51 that constitutes outsourcing material 5.
Action effect when using the disposable diaper 1C of above-mentioned the 3rd embodiment of the present invention describes.
The disposable diaper 1C of the 3rd embodiment obtains the same effect of disposable diaper 1B with the disposable diaper 1A or second embodiment of first embodiment.Below, describe for the flat type disposable diaper 1A of first embodiment or the different effect of disposable diaper 1B of second embodiment.
The disposable diaper 1C of the 3rd embodiment compares with the component parts number of diaper 1A and diaper 1B, and is fewer, and therefore, the fold of the 6b of belt portion of the 6a of belt portion and the B of veutro portion that is respectively formed at drosal part A is thinner, has improved the skin tactility.
The disposable diaper 1C of the 3rd embodiment compares with the component parts number of diaper 1A and diaper 1B, and is fewer, and therefore, the heat insulating ability of the 6b of belt portion of the 6a of belt portion of drosal part A and the B of veutro portion is low, and the wearer is not easy to perspire.
Then, based on Figure 10～13, the disposable diaper of the 4th embodiment of the present invention is described.
To the disposable diaper 1D of the 4th embodiment, explain and the disposable diaper 1A of first embodiment, the disposable diaper 1B of second embodiment or the different point of disposable diaper 1C of the 3rd embodiment.The point that does not have special instruction; Same with the disposable diaper 1C of the disposable diaper 1B of the disposable diaper 1A of first embodiment, second embodiment or the 3rd embodiment, be suitable for the explanation of disposable diaper 1C of disposable diaper 1B or the 3rd embodiment of disposable diaper 1A, second embodiment of first embodiment.
The disposable diaper 1D of the 4th embodiment (below, be called " 1D "), same with diaper 1B and diaper 1C, be the disposable diaper (with reference to Fig. 4, Figure 10) of Briefs type.Shown in figure 11; Inboard hydrophilic sheet material 71 is the internal layer sheet materials 51 outsourcing material 5, that be arranged on skin abutment face one side that constitute diaper 1D, and outside hydrophilic sheet material 72 is the outmost outer layer sheets 52 outsourcing material 5, that constitute diaper 1D that constitute diaper 1D.Shown in figure 11, waist elastic members 8 is arranged between inboard hydrophilic sheet material 71 (internal layer sheet material 51) and the outside hydrophilic sheet material 72 (outer layer sheet 52).
The disposable diaper 1D of the 4th embodiment; Different with the disposable diaper 1C of the disposable diaper 1B of second embodiment and the 3rd embodiment; Have following characteristic: inboard hydrophilic sheet material 71 is for constituting the internal layer sheet material 51 of outsourcing material 5; Outside hydrophilic sheet material 72 is for constituting the outer layer sheet 52 of outsourcing material 5.
Among the disposable diaper 1D of the 4th embodiment; Like Figure 10, shown in Figure 11; The profile of the side portion of inboard hydrophilic sheet material 71 (internal layer sheet materials 51) and outside hydrophilic sheet material 72 (outer layer sheet 52) is identical shaped, also is identical shaped in the shape of length direction (Y direction).Among the diaper 1D, like Figure 12, shown in Figure 13, inboard hydrophilic sheet material 71 (internal layer sheet material 51) and outside hydrophilic sheet material 72 (outer layer sheet 52) engage via junction surface 15 at width (directions X) and length direction (Y direction) respectively each other intermittently.
Among the disposable diaper 1D of the 4th embodiment, like Figure 10, shown in Figure 11, the state of waist elastic members 8 to stretch at width (directions X) is separately positioned on the inside of the 6b of belt portion of the 6a of belt portion and the B of veutro portion of drosal part A.Among the diaper 1D; The many waist elastic members 8 of 2～30 yarn shape; Like Figure 12, shown in Figure 13; Constituting between the internal layer sheet material 51 (inboard hydrophilic sheet material 71) and outer layer sheet 52 (outside hydrophilic sheet material 72) of outsourcing material 5, be provided with, be set up in parallel intermittently at length direction (Y direction) with the mode through junction surface 15 not.And; Each waist elastic members 8 of the 4th embodiment; Like Figure 10, Figure 12, shown in Figure 13, in two side seal portions 12,12, engage with respect to internal layer sheet material 51 (inboard hydrophilic sheet material 71) and outer layer sheet 52 (outside hydrophilic sheet material 72); Position beyond the two side seal portions 12,12 does not engage with respect to internal layer sheet material 51 (inboard hydrophilic sheet material 71) and outer layer sheet 52 (outside hydrophilic sheet material 72).Through the waist elastic members 8 of such setting, respectively form fold at the 6a of belt portion of the drosal part A that comprises inboard hydrophilic sheet material 71 (internal layer sheet material 51) and outside hydrophilic sheet material 72 (outer layer sheet 52), the 6b of belt portion of the B of veutro portion respectively.
Among the disposable diaper 1D of the 4th embodiment; Shown in figure 13; The junction surface 15 that inboard hydrophilic sheet material 71 (internal layer sheet material 51) and outside hydrophilic sheet material 72 (outer layer sheet 52) are bonded with each other is to constitute the mode that is listed as respectively at width (directions X) and length direction (Y direction) and to be provided with.Among the diaper 1D of the 4th embodiment, constitute width (directions X) row junction surface 15 and at the elastomeric element 8 of width (directions X) extended configuration, be arranged alternately at length direction (Y direction).
Among the disposable diaper 1D of the 4th embodiment; Shown in figure 12; Naturalness (not applying the state of external force); Waist elastic members 8 is shunk, and inboard hydrophilic sheet material 71 (inner layer piece 51 materials) and outside hydrophilic sheet material 72 (outer layer sheet 52) are formed up to each many waist elastic members 8 respectively, many folds (ridge) 16,16 that extend continuously.
Among the disposable diaper 1D of the 4th embodiment; Shown in figure 12; Each bar fold (ridge) 16 of inboard hydrophilic sheet material 71 (internal layer sheet materials 51) and outside hydrophilic sheet material 72 (outer layer sheet 52); Mode with side-prominent outside forms, and forms the circular-arc convex surface in cross section at the leading section of the projected direction of each fold (ridge) 16.This convex surface, shown in figure 12, extend continuously at length direction (Y direction).Among the disposable diaper 1D of the 4th embodiment; Shown in figure 12; All form fold (ridge) 16 at width (directions X) in abutting connection with, to each other each of junction surface 15 that constitute the row of length direction (Y direction); These folds (ridge) 16 do not break off with absorber 4 position overlapped, extend continuously at length direction (Y direction).That is, shown in figure 12, under naturalness (not applying the state of external force), waist elastic members 8 is shunk, and the junction surface 15 that constitutes the row of length direction (Y direction) constitutes groove 17, and this groove 17 alternately forms at width (directions X) with fold (ridge) 16.
The formation material of the disposable diaper 1D of the 4th embodiment, same with the pull-on disposable diaper 1C of the pull-on disposable diaper 1B of the pull-on disposable diaper 1A of first embodiment, second embodiment or the 3rd embodiment.That is, inboard hydrophilic sheet material 71 is same with the internal layer sheet material 51 that constitutes outsourcing material 5, and outside hydrophilic sheet material 72 is same with the outer layer sheet 52 that constitutes outsourcing material 5.In addition, junction surface 15 can engage formation through thermal welding, also can form through joints such as heat molten type bonding agents.
Action effect when using the disposable diaper 1D of above-mentioned the 4th embodiment of the present invention describes.
The disposable diaper 1D of the 4th embodiment obtains and the disposable diaper 1A of first embodiment, the disposable diaper 1B of second embodiment or the same effect of disposable diaper 1C of the 3rd embodiment.Below, explain and the flat type disposable diaper 1A of first embodiment, the disposable diaper 1B of second embodiment or the different effect of disposable diaper 1C of the 3rd embodiment.
The disposable diaper 1D of the 4th embodiment; Shown in figure 12; Through waist elastic members 8; Have at width (directions X) at the 6b of belt portion of the 6a of belt portion of the drosal part A that comprises inboard hydrophilic sheet material 71 and outside hydrophilic sheet material 72 and the B of veutro portion respectively and alternately form fold (ridge) 16 with groove 17 and the fold that forms, the soft-touch of outsourcing material 5, outward appearance are very attractive in appearance.
The disposable diaper 1D of the 4th embodiment; Shown in figure 12; Waist elastic members 8; In the position beyond two side seal portions 12,12, do not engage with respect to inner layer piece 51 (inboard hydrophilic sheet material 71) and outer layer sheet 52 (outside hydrophilic sheet material 72), but in the junction surface 15 of the row that constitute length direction (Y direction); Constitute groove 17, and the junction surface 15 of length direction (Y direction) adjacency of each groove 17 between region D in, inboard hydrophilic sheet material 71 (internal layer sheet material 51) contacts with outside hydrophilic sheet material 72 (outer layer sheet 52).Therefore; Among the disposable diaper 1D of the 4th embodiment; In the region D between the junction surface 15 each groove 17 and length direction (Y direction) adjacency; Move to the antiperspirant of inboard hydrophilic sheet material 71 (internal layer sheet material 51), can move to outside hydrophilic sheet material 72 (outer layer sheets 52) effectively, perspiration is effectively distributed.
Disposable diaper of the present invention is not limited to the disposable diaper 1A of above-mentioned first embodiment, the disposable diaper 1B of second embodiment, the disposable diaper 1C of the 3rd embodiment and the disposable diaper 1D of the 4th embodiment, can change aptly.
For example; Among the disposable diaper 1C of the disposable diaper 1A of above-mentioned first embodiment, the disposable diaper 1B of second embodiment, the 3rd embodiment and the disposable diaper 1D of the 4th embodiment; Hydrophilic sheet material 7; Like Fig. 2, Fig. 6, Fig. 9, shown in Figure 11, inboard hydrophilic sheet material 71 is provided with the mode of outside hydrophilic sheet material 72 with adjacency, establishes other sheet material of water penetration but between inboard hydrophilic sheet material 71 and outside hydrophilic sheet material 72, also can be situated between.
In addition, among the disposable diaper 1A of above-mentioned first embodiment, outside hydrophilic sheet material 72; As shown in Figure 2; 2 sheet materials by identical shaped identical size form, but 2 sheet materials are not that identical shaped identical size is also passable, for example; In 2 sheet materials, the outside hydrophilic sheet material 72 of non-skin abutment face one side is passable.
In addition; Among the disposable diaper 1A of above-mentioned first embodiment; Outside hydrophilic sheet material 72; As shown in Figure 2, constitute by 2 sheet materials, 2 outside hydrophilic sheet materials 72 all use than inboard hydrophilic sheet material 71 (face sheet 2) material that the liquid diffusibility is higher; But only arbitrary side's outside hydrophilic sheet material 72 is than high the getting final product of liquid diffusibility of inboard hydrophilic sheet material 71 (face sheet 2); If 2 sheet materials all use under the situation of the material higher than the liquid diffusibility of inboard hydrophilic sheet material 71 (face sheet 2), in 2 sheet materials, the outside hydrophilic sheet material 72 of non-skin abutment face one side also can use the higher material of outside hydrophilic sheet material 72 liquid diffusibilitys than skin abutment face one side.
In addition; Among the disposable diaper 1A of above-mentioned first embodiment; 2 outside hydrophilic sheet materials 72 are all as shown in Figure 3; This constitutes width (directions X) orientation of fiber at diaper 1A, but also can be all in width (directions X) orientation, also can be only in width (directions X) orientation of any outside hydrophilic sheet material 72.
In addition, last time second embodiment disposable diaper 1B in, constitute the inboard hydrophilic sheet material 71 and outside hydrophilic sheet material 72 of hydrophilic sheet material 7, like Fig. 5, shown in 6, identical shaped identical size, but be that the sheet of identical shaped identical size is also passable.
Embodiment
Below, through embodiment the present invention is described more specifically, but the invention is not restricted to these.
[embodiment 1]
Embodiment 1, uses hydrophilic hot blast (air-through) non-woven fabrics (25g/m of PP/PE and PET/PE fiber formation as inboard hydrophilic sheet material
2, vertical wide 60mm * horizontal wide 100mm), as 2 hydrophilic spun-bonded non-woven fabrics (10g/m of outside hydrophilic sheet material use PP fiber formation
2, vertical wide 60mm * horizontal wide 120mm).In addition, as waist elastic members, use 10 natural rubbers (470dtex).Among the embodiment 1; Inboard hydrophilic sheet material is set on the plane; One of outside hydrophilic sheet material is set on inboard hydrophilic sheet material, on an outside hydrophilic sheet material, places with the spacing parallel arranging of 5mm and to be stretched to 10 waist elastic members that stretch multiplying power 200%; These waist elastic members of clamping; Another outside hydrophilic sheet material is set, through the binding agent of common use on absorbent commodity that an outside hydrophilic sheet material is bonding comprehensively with another outside hydrophilic sheet material, form fold thus.
Each liquid diffusion area of inboard hydrophilic sheet material that uses and outside hydrophilic sheet material is by the assay method mensuration of above-mentioned liquid diffusion area.The measured value that obtains is as shown in table 1.Measured value is the meansigma methods of n=5.
[embodiment 2]
Each liquid diffusion area of inboard hydrophilic sheet material that uses and outside hydrophilic sheet material is measured with embodiment 1 equally.The measured value that obtains is as shown in table 1.Measured value is the meansigma methods of n=5.
[embodiment 3]
Each liquid diffusion area of inboard hydrophilic sheet material that uses and outside hydrophilic sheet material is measured with embodiment 1 equally.The measured value that obtains is as shown in table 1.Measured value is the meansigma methods of n=5.
[comparative example 1]
Comparative example 1 is as the hydrophilic hot-wind nonwoven cloth (25g/m of inboard hydrophilic sheet material use PP/PE and PET/PE fiber formation
2, vertical wide 60mm * horizontal wide 100mm), use the spun-bonded non-woven fabrics (15g/m of the water proofing property that the PP fiber constitutes as outside hydrophilic sheet material
2, vertical wide 60mm * horizontal wide 120mm), in addition same with embodiment 1, make fold.
Each liquid diffusion area of inboard hydrophilic sheet material that uses and outside hydrophilic sheet material is measured with embodiment 1 equally.The measured value that obtains is as shown in table 1.Measured value is the meansigma methods of n=5.
[comparative example 2]
Comparative example 2 is as the hydrophilic hot-wind nonwoven cloth (10g/m of inboard hydrophilic sheet material use PP fiber formation
2, vertical wide 60mm * horizontal wide 100mm), as outside hydrophilic sheet material, the hydrophilic hot-wind nonwoven cloth (25g/m that uses PP/PE and PET/PE fiber to constitute
2, vertical wide 60mm * horizontal wide 120mm), in addition same with embodiment 1, make fold.
Each liquid diffusion area of inboard hydrophilic sheet material that uses and outside hydrophilic sheet material is measured with embodiment 1 equally.The measured value that obtains is as shown in table 1.Measured value is the meansigma methods of n=5.
[comparative example 3]
Comparative example 3 is as the hydrophilic hot-wind nonwoven cloth (25g/m of inboard hydrophilic sheet material use PP/PE and PET/PE fiber formation
2, vertical wide 60mm * horizontal wide 100mm), as the hydrophilic fabric (20g/m of outside hydrophilic sheet material use acetate fiber formation
2, vertical wide 60mm * horizontal wide 120mm), same with embodiment 1 in addition, make fold.
Each liquid diffusion area of inboard hydrophilic sheet material that uses and outside hydrophilic sheet material is measured with embodiment 1 equally.The measured value that obtains is as shown in table 1.Measured value is the meansigma methods of n=5.
[comparative example 4]
Comparative example 4 is as the hydrophilic hot-wind nonwoven cloth (30g/m of inboard hydrophilic sheet material use PET/PP fiber formation
2, vertical wide 60mm * horizontal wide 120mm), as the hydrophilic hot-wind nonwoven cloth (25g/m of outside hydrophilic sheet material use PET/PP fiber formation
2, vertical wide 60mm * horizontal wide 70mm), same with embodiment 1 in addition, make fold.
Each liquid diffusion area of inboard hydrophilic sheet material that uses and outside hydrophilic sheet material is measured with embodiment 1 equally.The measured value that obtains is as shown in table 1.Measured value is the meansigma methods of n=5.
[performance evaluation]
To the fold of making in embodiment and the comparative example,, measure the diffusibility of liquid in order to following method.The result who obtains is as shown in table 1.
The determinator (KES-F7 THERMO LABOII) that uses KATO TECH company to produce; Each the face of inboard hydrophilic sheet material one side of fold of measuring each embodiment and each comparative example (is equivalent to the skin abutment face side; Brief note is for " skin side " in the table 1) and the face of outside hydrophilic sheet material one side (be equivalent to non-skin abutment face side; Brief note is for " outside " in the table 1) the water suction before the maximum heat infiltration rate qmax (kW/m of when dry (below, also claim)
2) value.The result who obtains is as shown in table 1.Measured value is the meansigma methods of n=3.
Then, acrylic resin board (vertical wide 150mm * horizontal wide 150mm) is set on horizontal plane, on acrylic resin board, the fold of each embodiment, each comparative example is set.At this moment, be careful in the acrylic resin board side inboard hydrophilic sheet material is set.The fold of each embodiment, each comparative example central authorities, that is, and the central authorities on the face of the opposition side of the acrylic resin board of outside hydrophilic sheet material; Place the weight of 1.0kPa; Each embodiment between the inboard hydrophilic sheet material and acrylic resin board of the fold of each comparative example, injects the water of 0.5ml.After the water filling, make the fold stretching, extension of each embodiment, each comparative example stop to extend, thereafter, make it to be withdrawn into once more original state until fold.Above-mentioned behavior is proceeded 5 times.Measure the maximum heat infiltration rate qmax (kW/m of face (outside) of face (skin side) and outside hydrophilic sheet material one side of inboard hydrophilic sheet material one side of each fold of each embodiment, each comparative example of 5 flexible backs (below, also claim suction flexible back)
2) value.The result who obtains is as shown in table 1.Measured value is the meansigma methods of n=3.
Then, obtain the suction of each fold of each embodiment and each comparative example qmax (kW/m after flexible
2) value qmax (kW/m when dry
2) the poor Δ qmax (kW/m of value
2) value.The result who obtains is as shown in table 1.
Here, the qmax value is meant, accumulates the heat of regulation at the hot plate of certain area, certain mass; Its for the contact specimen surface at once after; The peak value of the heat flow that the heat of accumulating moves to the sample of low temperature side, the body temperature that the qmax value is big more to be captured when wearing is big more, and contact coldness is high more.In each embodiment in this description and each comparative example, contact coldness is extremely relevant in the water quantities that each sheet material spreads with the water of injection.Therefore, if the sample of the qmax value after measuring qmax value when dry and suction being stretched is identical, Δ qmax (kW/m
2) value big more, mean that the water quantities increase is many more.
Table 1
Result as shown in table 1 can know, in the fold of embodiment 1～3, and the Δ qmax (kW/m in the outside
2) value is than the Δ qmax (kW/m of skin side
2) value is big, can know inject inboard hydrophilic sheet material water laterally the hydrophilic sheet material move.Compare with it, opposite in the fold of comparative example 1～4 with the fold of embodiment 1～3, the Δ qmax (kW/m of skin side
2) value is big, can know that the shipwreck of injecting inboard hydrophilic sheet material moves with hydrophilic sheet material laterally, stays in the inboard hydrophilic sheet material.
Therefore, possess the disposable diaper of the fold of embodiment 1～3, absorb the antiperspirant of inboard hydrophilic sheet material, the hydrophilic sheet material moves laterally easily, is difficult to become moisture state, therefore is difficult on skin, take place miliaria etc.
Industrial applicibility
According to absorbent commodity of the present invention, the diffusibility of antiperspirant is high, therefore, can alleviate the generation of eczema, miliaria, macule etc.
Claims (8)
1. disposable diaper, it possesses absorber from drosal part to veutro portion in the central authorities of disposable diaper, is provided with the hydrophilic sheet material in belt portion, and this disposable diaper is characterised in that:
Said hydrophilic sheet material has: the inboard hydrophilic sheet material that forms skin abutment face; With the outside hydrophilic sheet material of non-skin abutment face one side that is arranged on this inboard hydrophilic sheet material, these sheet materials are arranged on the lumbar region in the zone between the end limit of end limit and said absorber of comprising of said drosal part of said belt portion,
Comprising the said belt portion of said outside hydrophilic sheet material and said inboard hydrophilic sheet material, the state so that the width at said disposable diaper stretches forms fold through being arranged on the inner waist elastic members of said belt portion,
Said outside hydrophilic sheet material is higher than the liquid diffusibility of said inboard hydrophilic sheet material.
2. disposable diaper as claimed in claim 1 is characterized in that:
The formation fiber of said outside hydrophilic sheet material is in the width orientation of said disposable diaper.
3. according to claim 1 or claim 2 disposable diaper is characterized in that:
Said inboard hydrophilic sheet material is than the easy compression of said outside hydrophilic sheet material.
4. like each described disposable diaper in the claim 1～3, it is characterized in that:
Said outside hydrophilic sheet material is higher than the density of said inboard hydrophilic sheet material.
5. like each described disposable diaper in the claim 1～3, it is characterized in that:
Said outside hydrophilic sheet material is higher than the transpiration property of said inboard hydrophilic sheet material.
6. like each described disposable diaper in the claim 1～5, it is characterized in that:
Said disposable diaper is a flat type disposable diaper,
Said inboard hydrophilic sheet material forms the face sheet of liquid permeability,
Said outside hydrophilic sheet material is made up of the 2 blocks of sheet materials that the zone disposed between the pull stap that is provided with respectively in the limit, the left and right sides of said drosal part portion,
Said waist elastic members is arranged between 2 blocks of said outside hydrophilic sheet materials.
7. like each described disposable diaper in the claim 1～5, it is characterized in that:
Said disposable diaper is a pull-on disposable diaper,
Said inboard hydrophilic sheet material and said outside hydrophilic sheet material; On the skin abutment face of return portion, be set at the width of said disposable diaper; Wherein, said return portion is turned back the outer layer sheet of the outsourcing material that constitutes disposable diaper and is formed in said lumbar region
Said waist elastic members is arranged on said outer layer sheet and is configured between the internal layer sheet material of skin abutment face one side of this outer layer sheet.
8. like each described disposable diaper in the claim 1～5, it is characterized in that:
Said disposable diaper is a pull-on disposable diaper,
Said inboard hydrophilic sheet material constitutes return portion, and wherein, said return portion is turned back the outer layer sheet of the outsourcing material that constitutes disposable diaper and formed in said lumbar region,
Said outside hydrophilic sheet material forms the internal layer sheet material of skin abutment face one side that is provided in said outer layer sheet,
Said waist elastic members is arranged between said outer layer sheet and the said outside hydrophilic sheet material.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2009-070155 | 2009-03-23 | ||
| JP2009070155 | 2009-03-23 | ||
| PCT/JP2010/054604 WO2010110154A1 (en) | 2009-03-23 | 2010-03-17 | Absorbent article |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102316838A true CN102316838A (en) | 2012-01-11 |
| CN102316838B CN102316838B (en) | 2014-10-22 |
Family
ID=42780847
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201080008212.4A Active CN102316838B (en) | 2009-03-23 | 2010-03-17 | Absorbent article |
Country Status (6)
| Country | Link |
|---|---|
| JP (1) | JP5560071B2 (en) |
| CN (1) | CN102316838B (en) |
| MY (1) | MY178178A (en) |
| RU (1) | RU2532727C2 (en) |
| TW (1) | TWI508715B (en) |
| WO (1) | WO2010110154A1 (en) |
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| CN113382701A (en) * | 2019-02-07 | 2021-09-10 | 尤妮佳股份有限公司 | Absorbent article |
| WO2022021265A1 (en) * | 2020-07-31 | 2022-02-03 | The Procter & Gamble Company | Wearable article comprising an elastic belt laminate having hydrophilic inner and outer web |
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- 2010-03-17 MY MYPI2011003894A patent/MY178178A/en unknown
- 2010-03-17 RU RU2011142775/12A patent/RU2532727C2/en active
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| CN110035730A (en) * | 2016-12-22 | 2019-07-19 | 花王株式会社 | Disposable diaper |
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| CN112654337A (en) * | 2018-09-11 | 2021-04-13 | 花王株式会社 | Pants-type disposable diaper |
| CN112654337B (en) * | 2018-09-11 | 2022-04-29 | 花王株式会社 | Pants-type disposable diaper |
| CN113382701A (en) * | 2019-02-07 | 2021-09-10 | 尤妮佳股份有限公司 | Absorbent article |
| CN113382701B (en) * | 2019-02-07 | 2022-05-27 | 尤妮佳股份有限公司 | Absorbent article |
| CN114206284A (en) * | 2019-09-26 | 2022-03-18 | 大王制纸株式会社 | Disposable diaper having a disposable diaper |
| WO2022021265A1 (en) * | 2020-07-31 | 2022-02-03 | The Procter & Gamble Company | Wearable article comprising an elastic belt laminate having hydrophilic inner and outer web |
| CN115867239A (en) * | 2020-07-31 | 2023-03-28 | 宝洁公司 | Wearable article comprising elastic belt laminate with hydrophilic inner and outer webs |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2010110154A1 (en) | 2010-09-30 |
| MY178178A (en) | 2020-10-06 |
| TW201039803A (en) | 2010-11-16 |
| RU2011142775A (en) | 2013-04-27 |
| CN102316838B (en) | 2014-10-22 |
| RU2532727C2 (en) | 2014-11-10 |
| JP2010246901A (en) | 2010-11-04 |
| JP5560071B2 (en) | 2014-07-23 |
| TWI508715B (en) | 2015-11-21 |
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