JPH10127687A - Brief-type disposable paper diaper - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the property of fitting to the physique of a wearing person and to prevent the leakage of excretion from the opening surfaces on the waist. SOLUTION: At positions corresponding to the belly on a front body F, plural elastic belly stretching members 61 are provided along lateral direction and plural front body hang-up elastic stretching members 62 are provided so as to position both the terminal parts at the positions corresponding to the belly, to expand a central part to the downside of inleg, relating that central part to cross a main absorptive body 31 and further to be displaced from the longitudinal center line of a product to the side of front body edge more than 30mm.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pants-type disposable paper diaper, and more particularly to a pants-type disposable paper diaper that fits the body shape of a wearer such as an infant or a child and that prevents leakage of urine and feces from the waist opening. Disposable disposable diapers.

[0002]

2. Description of the Related Art Conventionally, an absorbent body is included between a liquid-permeable top sheet and a liquid-impermeable back sheet at least around a leg, leaving a flap portion composed of each sheet. 2. Description of the Related Art A disposable diaper is widely used in which a fastening tape fixed to a back body of a diaper is used to wrap a crotch portion of a wearer.

However, in recent years, so-called pants-type disposable diapers have been developed for the purpose of facilitating detachment of the diaper, or for releasing the adult from the attaching operation using the fastening tape each time, thereby simplifying the attaching operation. Is being developed.

Various proposals have already been made for this pants-type disposable diaper, and an example thereof is shown in FIG. 10 of the attached drawings in Japanese Utility Model Registration No. 3024357. That is, on the liquid-impermeable back sheet 2 made of polyethylene or the like,
The waist elastic elastic members 6 and 7 are arranged on the waist part of the front part and the rear part, and both ends are positioned below the waist elastic elastic member 6, and the center part is inflated to the crotch side. A first elastic elastic member 4 and a leg elastic second elastic member 5 with both ends positioned below the waist elastic elastic member 7 and a central portion inflated to the crotch side are provided. , An abdominal elastic elastic member 8 and a back elastic elastic member 9 are also provided, each elastic elastic member 9 is fixed to the liquid-impermeable back sheet 2 with a hot melt adhesive, and the absorber 3 is provided thereon. Then, the liquid-permeable topsheet 1 is further laminated and integrated thereover, folded in the front-rear direction, and the folded side edges are fixed by an ultrasonic welding method or the like, thereby forming a pants-type paper diaper.

In this case, the waist elastic members 6 and 7 seal the opening of the disposable diaper, and the abdominal elastic member 8 and the back elastic member 9 prevent the abdomen and the back from hitting the abdomen and the back, respectively. The leg elastic first elastic member 4 and the leg elastic second elastic member 5 have a function of sealing around the leg.

[0006]

The body shape of a wearer, such as an infant or a child, generally has a rounded protruding abdomen and buttocks than an adult, and is sensitive to skin, so that the disposable diaper itself is prevented from slipping off. Abdominal compression should be avoided as far as possible.

However, in the prior art, in order to prevent the disposable diaper from slipping off, the purpose of the present invention is to reinforce the tightening by the waist elastic elastic members 6, 7.
Although the abdominal elastic elastic member 8 and the back elastic elastic member 9 are provided, each elastic elastic member 8, 9 requires a certain strong contraction force in order to reliably prevent the disposable diaper itself from sliding down. Are uniformly arranged in the lateral direction, so that a strong compressive force is applied to the rounded abdomen, and a burden is imposed on the wearer.

[0008] Therefore, a main object of the present invention is to prevent the action of excessive compressive force on the abdomen of the wearer.

[0009]

According to a first aspect of the present invention, there is provided a diaper body having a liquid-permeable top sheet, a liquid-impermeable back sheet, and an absorber interposed therebetween. In a pants-type disposable disposable diaper in which a front body and a back body are integrated at respective side portions in a product state, one or a plurality of abdominal elastic elastic members are provided along a lateral direction at a portion corresponding to the abdomen of the front body. Is provided, both ends are located at the position corresponding to the abdomen, the center swells to the inseam,
In addition, one or a plurality of front body lifting elastic members are provided in which a center portion thereof intersects with the arrangement position of the absorber, and is further deviated to a front body edge by 30 mm or more from a front-rear center line of the product. A pants-type disposable paper diaper characterized by the following.

According to a second aspect of the present invention, there is provided a pants-type disposable disposable diaper according to the first aspect, wherein one or more buttocks elastic elastic members are provided along a lateral direction at the buttocks of the back body corresponding to the abdominal portions. It is.

According to a third aspect of the present invention, one or more buttocks elastic elastic members are provided along the lateral direction at the buttocks of the back body corresponding to the abdominal portions, and both ends of the back body have 2. The elastic body for fitting one or a plurality of rear bodies, which is located substantially at an opening around a leg, has a central part bulging to the back side, and has a central part located at the buttocks part. This is a pants-type disposable paper diaper.

According to a fourth aspect of the present invention, one or more buttocks elastic elastic members are provided along the lateral direction at the buttocks of the back body corresponding to the abdominal portions, and both ends of the back body have An elastic stretching member which lifts one or a plurality of rear bodies, which is located at the buttocks part, has a central part bulging to the crotch side, and a central part thereof intersects with the arrangement position of the absorber. 1. The pants-type disposable paper diaper according to 1.

The invention according to claim 5 further comprises one or more leg elastic elastic members for sealing around both legs, according to any one of claims 1-4. Pants-type disposable diapers.

According to the first aspect of the present invention, one or more abdominal elastic elastic members are provided along the abdomen of the front body along the lateral direction, while both ends are located at the abdominal portions. One or more front bodies bulging to the crotch side, and the center part thereof intersects with the arrangement position of the absorber, and further deviates from the center line in the front-rear direction of the product by 30 mm or more to the front body edge side. Around the time, an elastic member was provided. As a result, the front body lifting elastic elastic member lifts the absorber to the front body edge (opening edge) side, and prevents urine or stool leakage from the abdominal side (particularly when prone).

On the other hand, the abdominal elastic elastic member applies the front body of the disposable diaper to the wearer's abdomen. In this case, the abdominal elastic elastic member tightens the front body of the disposable diaper in a state where the lifting function acts on the front body edge side of the absorbent body by the front body elastic elastic member. Fall is prevented, so that the front body does not fall off during exercise. Conversely, slippage is mainly lifted by the front body and applied to the elastic
Since the abdominal elastic elastic member is sufficient with a tightening force enough to fit the front part of the disposable diaper to the wearer's abdomen, the tightening force is relatively small. As a result, it is possible to prevent an excessive pressing force from acting on the abdomen of the wearer.

In this case, the central portion of the elastic body that lifts the front body is deviated from the center line in the front-rear direction of the product by 30 mm or more (more preferably 45 mm or more) toward the front body edge. If the deviation distance indicated by the symbol D in FIG. 3 is short, it has only a function of simply pressing the (in the crotch) against the wearer, and performs only the same function as the leg elastic elastic member of the above-mentioned publication. .

The specific operation of the other claimed invention will be described in the following description of the embodiments.

[0018]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be specifically described below with reference to the drawings. 1 to 5 and 7 to 8
1 shows a first structural example of a pants-type paper diaper according to the present invention. This disposable diaper typically has the shape shown in FIG.
As clearly shown in FIG. 5, the absorbent main body 31 made of cotton-like pulp or the like is formed by the liquid-permeable top sheet 10 made of a nonwoven fabric or the like and the liquid-impermeable backsheet 20 made of a polyethylene sheet or the like. The diaper main body 30 having a structure including the diaper main body is provided on the main body back sheet 40.

The absorber main body 31 in the embodiment includes an hourglass-shaped upper absorber main body 31A having a large area and a rectangular lower absorber main body 31B having a slightly smaller area, which are wrapped by tissue papers 32A and 32B. Although not shown, a polymer-absorbing polymer is contained at an appropriate position, and the semi-rigidity which does not change in size as a whole but is deformable is shown.

Conversely, the liquid-permeable topsheet 10 is provided on almost the entire surface of the absorbent main body 31 with the hot-melt adhesive H (the same applies to the hot-melt adhesive used for bonding to other parts). , And the liquid-impermeable back sheet 20 is fixed with a hot-melt adhesive H under the absorber main body 31 to form the diaper main body 30.

Further, a main body back sheet 40 having a large area and elasticity is provided separately from the diaper main body 30 composed of the above-mentioned components. The main body backsheet 40 has a larger outer shape than the absorbing element to form a flap portion, and has a pseudo hourglass shape as a whole. The front backsheet 41 is bonded to the backside backsheet 42 with the hot melt adhesive H. It is a thing.

Side barrier cuffs 5 on both sides of the product
0 and 50 are provided. These barrier cuffs 5
0,50 preferably comprises a sheet showing liquid impermeability or water repellency.

The side barrier cuff 50 has one side of the constituent sheet interposed between the front surface back sheet 41 and the liquid-impermeable back sheet 20, and is fixed thereto by a hot melt adhesive H. Portion is folded back to the surface side of the product while wrapping the side edge of the tissue paper 32B, and the folded portion extends to the center line side of the product,
A part of the extending portion constitutes an inner edge and is folded inward, and further, the first edge is formed at the inner edge of the constituent sheet.
The erecting elastic member 51 for uprighting is provided at the outer edge portion with the second
The erecting elastic member 52 is fixed to the constituent sheet by a hot melt adhesive (not shown by a reference numeral).
Elastic elastic member 51 for erecting and second elastic elastic member 52 for erecting
Is fixed to the side edge of the liquid-permeable top sheet 10 by the hot melt adhesive H.

The front and rear ends of the product near the inner edge of the constituent sheet constituting the side barrier cuff 50 are fixed to the liquid-permeable top sheet 10 by a hot melt adhesive (not shown).

As a result, the front and rear end portions of the first standing elastic elastic member 51 are restrained by the diaper main body 30 as shown by a virtual line on the right side of FIG. Only the portion becomes a free end, and rises toward the inside of the product according to the contraction force of the first standing elastic elastic member 51, thereby constituting the first barrier cuff portion B1. On the other hand, the front and rear ends of the outer edge of the sheet constituting the side barrier cuff 50 are also formed by the back back sheet 42 having the liquid-permeable top sheet 10 and the side barrier cuff 5.
0 is folded back to cover the front and rear end portions (details of this structure are not shown;
) And fixed by hot melt adhesive,
The front and rear ends are constrained by the diaper main body 30, and in the use state of the product, only the middle portion is a free end, and stands up to the outside of the product with the contraction force of the second standing elastic elastic member 52, The second barrier cuff portion B2 is configured.

In contrast to the example shown in FIG.
B does not extend to the second barrier cuff portion B2,
As shown in FIG. 6, a modification including an upper absorbent main body 31A and a rectangular lower absorbent main body 31B having a slightly smaller area is also proposed.

On the other hand, in order to fit the product to the wearer and to prevent leakage of urine and stool, various elastic elastic members are mainly provided as shown in FIGS. It is interposed between the back sheet 41 and the back sheet 42, and is fixed to both sheets by a hot melt adhesive H.

This will be described in detail below.
A plurality of (six in the illustrated example) abdominal elastic elastic members 61 made of, for example, thread rubber are provided along the abdominal portion (see FIG. 8) in the lateral direction, and both ends are located at the abdominal portion. Bulges to the crotch side, and the central portion thereof intersects with the position where the absorber main body 31 is disposed, and further deviates from the front-rear center line L by 30 mm or more toward the front body F edge side, for example, thread rubber. (Six in the example shown)
The elastic body 62 for lifting the front body is provided.

On the other hand, a plurality (four in the illustrated example) of buttocks elastic elastic members 63 made of, for example, thread rubber are provided along the buttocks of the back body B (see FIG. 8) corresponding to the above-mentioned abdomen. It is provided.

Further, in the back body B, a plurality of thread rubbers (for example, thread rubber) whose both end portions are located substantially at the leg opening, the center portion bulges to the back side, and the center portion is located at the buttocks portion. An elastic elastic member 64 for fitting the rear body (four in the illustrated example) is also provided.

Further, in the illustrated example, four elastic waist elastic members 65 and 66 are provided at the opening of the front body F and the opening of the back body B.

On the other hand, one or a plurality (three in the illustrated example) of leg elastic elastic members 67, 6 for sealing around both legs.
8 are provided. These leg elastic members 6
7, 68 have various modes as long as they seal around the leg, but in the illustrated example, the leg elastic elastic member 67 bulges toward the lowermost part of the inseam by connecting both side edges of the front body F. The leg elastic elastic member 68 is connected between the side edges of the back body B and swells toward the lowermost part of the crotch, and the lowermost parts of the elastic elastic members 67 and 68 are close to each other near the center line L in the front-rear direction. It is. Elastic elastic member 67,
The lowermost portion 68 is continuous as shown by the imaginary line in FIG. 3, and the imaginary line portion can be cut off. Further, the leg elastic elastic member may be continuous along the front and rear body direction around the leg.

In such a structure, as shown in FIG. 7, the side portions 40X, 40X of which the main body backsheet 40 is folded in the front-rear direction are joined to each other by heat welding or a hot-melt adhesive, etc. A mold paper diaper is assembled. Reference numeral 70 shown in FIG. 2 is a tri-fold adhesive tape for fixing the diaper when it is rolled up and discarded.

In this embodiment, as can be easily guessed from the embodiment shown in FIG. 8, the front body lifting elastic expansion / contraction member 62 lifts the absorber main body 31 to the edge side of the front body F, and is caused by the displacement of the absorber main body 31. Prevent leaking urine or stool from the ventral side. On the other hand, the abdominal elastic elastic member 61 applies the front body F of the disposable diaper to the wearer's abdomen. As described above, when these are combined, it is possible to prevent the absorber from slipping off and prevent the action of excessive pressing force on the wearer's abdomen.

On the other hand, in the back body B, a buttocks elastic elastic member 63 is provided along the lateral direction at the buttocks of the back body B corresponding to the abdominal portion. The buttocks elastic elastic member 63 applies a portion corresponding to the buttocks of the disposable diaper (in the illustrated example, the spine region slightly above the buttocks) to the buttocks of the wearer, and cooperates with the abdominal elastic elastic members 61 for the buttocks and abdomen. Tighten. Further, the elastic elastic member 64 for fitting the rear body has both ends located substantially at the leg opening, a central portion bulging to the back side, and a central portion thereof located at the buttocks, so that By pulling up the upper end portion of the opening of the back body to the spine region slightly above the buttocks along the lower roundness of the lower body, the absorber main body 31 of the back body can be suitably fitted to the wearer.

The leg elastic members 67 and 68 seal the leg openings and enhance the fit. The waist elastic members 65 and 66 which are not essential in the present invention.
Prevents leakage of urine and stool from around the waist.

FIG. 9 shows a second example, in which one or more buttocks elastic elastic members 63 are provided along the lateral direction at the buttocks of the back body B corresponding to the above-mentioned abdomen. One or a plurality (6 in the illustrated example) of which both ends are located at the buttocks portion, the central portion bulges toward the crotch side, and the central portion intersects with the position where the absorber main body 31 is disposed. ) Is provided with an elastic elastic member 69 for lifting the rear body.

In this case, similarly to the front body lifting elastic elastic member 62, the rear body lifting elastic elastic member 69 has a function of lifting the absorber main body 31 in the rear body.

As shown in FIG. 10, there is also proposed a structure in which the back elastic body 69 is omitted.

Each of these aspects is provided by the age of the wearer and the choice of the intended function of the purchaser.

The barrier cuff in the embodiment has a structure in which a first barrier cuff B1 and a second barrier cuff B2 are formed. This structure has a function of sealing with the second barrier cuff B2 even if the urine or particularly soft stool exceeds the first barrier cuff B1.

In the disposable diaper according to the embodiment, the main body backsheet 40 exhibits elasticity and elasticity. Therefore, when the diaper is worn, the entire body backsheet 40 is tightened against the wearer, and the main body of the absorbent body 31 separates from the skin even if the wearer's movement is brisk with this. Without having to, it will always fit.

The first structural example shown in FIGS. 1 to 5 and FIGS. 7 to 8 described above has a liquid-permeable topsheet 10, a liquid-impermeable backsheet 20, and an absorbing member interposed therebetween. A diaper main body 30 having a body is further provided with a main body backsheet 40 to constitute a pants-type paper diaper of the present invention of the present invention.

On the other hand, as shown in FIG. 11, a structure can be adopted in which the absorber main body 31 is interposed between the liquid-permeable top sheet 10A and the liquid-impermeable back sheet 20A. In this case, each elastic elastic member described above can be fixed to the liquid-impermeable back sheet 20A with a hot melt adhesive (each elastic elastic member in this embodiment is not shown). Therefore, in the example of FIG. 11, the diaper main body according to the present invention itself constitutes the pants-type paper diaper of the present invention as it is in a product state.

It is desired that the main body back sheet 40 has at least one of air permeability and waterproofness (water repellency), more preferably both properties, from the viewpoint of preventing stuffiness.
The material can be appropriately selected, for example, heat-fusing a rayon spunlace nonwoven fabric made of a blend of heat-bonded fiber and rayon fiber mainly composed of polypropylene, and a melt-blown nonwoven fabric mainly composed of urethane or isoprene rubber-based material,
An example in which the nonwoven fabric is integrated by ultrasonic bonding, hot melt adhesive bonding, or the like and the former nonwoven fabric is used on the skin side of the wearer can be given.

In the first structural example, the liquid-impermeable backsheet 20 is used. However, if the main body backsheet 40 is liquid-impermeable, a liquid-permeable backsheet may be used. That is, at least one of the liquid-impermeable backsheet 20 and the main body backsheet 40 may be liquid-impermeable. Further, if the main body backsheet 40 is liquid-impermeable, as it can be inferred from the embodiment of FIG. 11, it is used as the liquid-impermeable backsheet according to the present invention, and the liquid-impermeable backsheet 20 is used. It can be omitted.

The barrier cuffs are almost entirely folded back to form a double sheet, but the upright portion may be a single sheet. The number and the like of the standing elastic elastic members are appropriate. Further, the barrier cuffs can be omitted.

[0048]

As described above, according to the present invention, urine leakage and fecal leakage from the waist opening surface can be achieved by improving the fit to the wearer's body shape and preventing the absorbent body from slipping down. Can be reliably prevented.

[Brief description of the drawings]

FIG. 1 is a development view showing an example of arrangement of elastic elastic members of a pants-type paper diaper according to the present invention.

FIG. 2 is a development view of a product.

FIG. 3 is a developed view showing a relationship with an absorbing element.

FIG. 4 is a view taken along line 4-4 in FIG. 2;

FIG. 5 is a view taken along line 5-5 in FIG. 2;

FIG. 6 is a view corresponding to an arrow line 4-4 in FIG. 2 in another embodiment.

FIG. 7 is a perspective view showing a product state of the pants-type disposable diaper according to the present invention.

FIG. 8 is an explanatory diagram of an example of arrangement of elastic elastic members in a product state.

FIG. 9 is a developed view showing another example of the arrangement of the elastic elastic member.

FIG. 10 is a development view showing another example of the arrangement of the elastic elastic members.

FIG. 11 is a development view showing another example of the present invention.

FIG. 12 is a development view of a conventional pants-type paper diaper.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 10 ... Liquid-permeable topsheet, 20 ... Liquid-impermeable backsheet, 30 ... Diaper main body, 31 ... Absorption main body, 40 ... Main body backsheet, 50 ... Side barrier cuff, 51 ... 1st
Elastic elastic member for erecting, 52 ... Elastic elastic member for second erecting,
61 ... abdominal elastic elastic member, 62 ... front body lifting elastic elastic member, 63 ... buttocks elastic elastic member, 64 ... elastic elastic member for rear body fit, 65, 66 ... waist elastic elastic member,
67, 68 ... elastic elastic members around the legs, 69 ... elastic elastic members for lifting the front front body, F ... front body, B ... rear body, H ... hot melt adhesive.

Claims (5)

[Claims] 1. A diaper body having a liquid-permeable top sheet, a liquid-impervious back sheet, and an absorber interposed therebetween, wherein a front body and a rear body are respectively provided on the side portions in a product state. In the integrated pants-type disposable paper diaper, one or a plurality of abdominal elastic elastic members are provided along the abdomen portion of the front body along the lateral direction, both ends are located at the abdomen equivalent portion, and the central portion is inseam Bulges to the side, and its central part intersects with the location of the absorber, and is displaced to the front side by 30 mm or more from the center line in the front-rear direction of the product; one or more front bodies are lifted A pants-type disposable disposable diaper having an elastic elastic member. 2. The pants-type disposable disposable diaper according to claim 1, wherein one or a plurality of elastic buttocks elastic members are provided along the lateral direction at the buttocks of the back body corresponding to the parts corresponding to the abdomen. 3. One or more buttocks elastic elastic members are provided along the lateral direction at the buttocks of the back body corresponding to the abdomen-corresponding portions, and both ends of the back body are substantially open to the leg openings. The underpants-type disposable paper diaper according to claim 1, further comprising one or a plurality of elastic elastic members for fitting a rear body, the central part bulging to the back side, and the central part being located at the buttocks. 4. One or more buttocks elastic elastic members are provided along the lateral direction at the buttocks of the back body corresponding to the above-mentioned abdomen, and both ends are located at the buttocks at the back of the body. 2. A pants-type disposable according to claim 1, wherein a central portion bulges to the crotch side, and one or a plurality of rear body lifting elastic members are provided, the central portion of which intersects the arrangement position of the absorber. Paper diapers. 5. The pants-type disposable paper diaper according to claim 1, further comprising one or more elastic elastic members around the legs for sealing around the legs.