JP6510329B2 - Shorts type napkin - Google Patents

Description

  The present invention relates to a shorts-type napkin.

DESCRIPTION OF RELATED ART Conventionally, the sanitary napkin which improves fit and suppresses the leak of menstrual blood is provided (for example, patent document 1). The sanitary napkin of Patent Document 1 has a pair of grooves disposed at the center in the front-rear direction of the sanitary napkin and at the outer side in the width direction than the center in the width direction. The groove of Patent Document 1 has a convex shape extending in the front-rear direction and extending inward in the width direction. In the sanitary napkin of Patent Document 1, the center in the front-rear direction and the center in the width direction of the sanitary napkin expand inward (see FIG. 2 of Patent Document 1).
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JP, 2008-302238, A

  However, the above-described sanitary napkin has the following problems.

When using the sanitary napkin of Patent Document 1, the wearer wears the sanitary napkin on the underwear with the crotch portion of the underwear as a rough mark. At this time, since there is no reliable reference for the positioning of the underwear and the sanitary napkin, the position of the absorbent napkin of the sanitary napkin in the front-rear direction is shifted by the wearer. Moreover, even if it is the same wearer, the position of the front-back direction of the absorber of a sanitary napkin may shift | deviate, since it can not mount | wear with the same position each time. In the case where the position of the absorber is improper, the fit of the absorber may be reduced, and fluid leakage may occur.

The present invention has been made in view of the above-mentioned problems, and an object of the present invention is to provide a shorts-type napkin capable of disposing an absorber at an appropriate position regardless of the type of wearer and suppressing leakage of body fluid. I assume.

The shorts-type napkin of the present disclosure has a front and back direction extending to the wearer's body front and body rear side, a width direction orthogonal to the front and back direction, an inward direction toward the wearer, and an outward direction opposite to the inward direction. A front waist region located on the front side of the body, a back waist region located on the rear side of the body, and between the front waist region and the back waist region, The crotch area, which is placed in the crotch
An absorbent body having a skin sheet and an absorbent body, a front waist belt member disposed in the front waist region, a rear waist belt member disposed in the rear waist region, and the front waist A side joint at which the outer edge of the belt member and the outer edge of the rear waist belt member are joined, a pair of leg openings arranged around the legs of the wearer, and a circumference of the trunk of the wearer A shorts type napkin having a waist opening to be pressed, and a pressing section in which the skin sheet and the absorbent body are pressed in the thickness direction, the pressing section facing the wearer's excretory opening It has a pair of discharge mouth pressing parts which extend in the front and back direction on both outer sides in the width direction than the discharge mouth facing part to be arranged, and the center of the discharge mouth pressing parts in the front and back direction is the front and back direction of the napkin in the crotch region Before the center of And summarized in that position.

According to the present disclosure, it is possible to provide a shorts-type napkin that can position the absorber at an appropriate position for any wearer and suppress the leakage of body fluid.

It is a front view of the shorts type | mold napkin which concerns on embodiment. It is an expanded view of the shorts type | mold napkin shown in FIG. It is a schematic cross section of the AA cross section shown in FIG. FIG. 2 is a cross-sectional view of a cross section taken along the longitudinal direction, passing through the center in the width direction of the shorts-type napkin. It is a top view of an absorptive main part. It is the figure which showed the mounting state of the shorts type | mold napkin typically.

(1) Whole structure of shorts type | mold napkin With reference to FIGS. 1-5, the whole structure of the shorts type | mold napkin 1 which concerns on embodiment is demonstrated. The shorts-type napkin 1 which concerns on this embodiment is a shorts-type napkin previously formed in a pants type. The shorts-type napkin 1 according to the present embodiment may be a night-use shorts-type napkin or a day-use shorts-type napkin.

The shorts type napkin 1 corresponds to the front waist area S1 disposed on the front side of the wearer's body, the back waist area S2 disposed on the wearer's body rear side, and the crotch of the wearer. There is a crotch region S3 located between the region S1 and the rear waist region S2.

The shorts type napkin 1 has an anteroposterior direction L extending to the wearer's body front side and body rear side, a width direction W orthogonal to the anteroposterior direction, an inward direction T1 toward the wearer, and an outward direction opposite to the inward direction. And a thickness direction T extending to T2.

The shorts-type napkin 1 includes an absorbent main body 10 and a chassis 20. The absorbent main body 10 includes a liquid-permeable main body top sheet 11, a liquid-impermeable main body film 12, an absorber 13 disposed between the main body top sheet 11 and the main body film 12, and a main body back sheet 14. And. The chassis 20 is disposed in the outward direction T2 than the absorbent main body 10, and includes an exterior top sheet 21 and an exterior back sheet 22.

FIG. 2 is a developed plan view showing a state in which the shorts-type napkin 1 shown in FIG. 1 is developed. The developed plan view shown in FIG. 2 is a drawing in a stretched state in which the stretchable member is stretched to a state where wrinkles of the main body top sheet 11 and the main body back sheet 14 constituting the shorts-type napkin 1 are not formed. FIG. 3 is a cross-sectional view taken along line A-A shown in FIG. FIG. 4 is a cross-sectional view of a cross section taken along the longitudinal direction, passing through the center in the width direction of the shorts-type napkin.

The shorts-type napkin 1 includes a front waist belt member 41 disposed in the front waist region, a rear waist belt member 42 disposed in the rear waist region, and a crotch member 43 disposed in the crotch region.
And. The shorts-type napkin 1 according to the present embodiment is a front waist belt member 41.
The rear waist belt member 42 and the crotch member 43 continuously constitute the chassis 20 in the front-rear direction. The shorts-type napkin has a front waist belt member 41 and a rear waist belt member 42 without a crotch member, and connects the front waist belt member 41 and the rear waist belt member 42 by an absorbent main body, It is also good.

From the state shown in FIG. 2, the front waist area S1 and the rear waist area S2 are folded starting from the center 1LC in the front-rear direction L of the napkin 1 so that the outer edge of the front waist belt member 41 and the front waist belt member By joining with the outer edge of 41, the shorts-type napkin shown in FIG. 1 is formed. The side joint portion 29 where the outer edge of the front waist belt member 41 and the outer edge of the front waist belt member 41 are joined is shown in FIGS. 1 and 2. The inside in the front-rear direction than the side joint portion 29 is a crotch region S3.

The main body top sheet 11 is positioned in the inward direction T1 (inward direction side) relative to the absorber 13. As the main body top sheet 11, a liquid-permeable sheet such as a non-woven fabric or an apertured plastic film is used.

The main film 12 is disposed on the outer direction T2 side of the absorber 13 and on the inner direction T1 side of the chassis 20. As the main film 12, a liquid impermeable sheet or the like is used.

The absorber 13 is provided between the main body top sheet 11 and the main body film 12 and absorbs excrement from the wearer. For the absorbent body 13, a mixture of ground pulp and superabsorbent polymer particles is used. The basis weight of the pulp is 100 to 800 g / m ² , and the basis weight of the superabsorbent polymer particles is 0 to 100 g / m ² . The absorber 13 may be an air-laid sheet in a sheet form.

The main body back sheet 14 includes the main body top sheet 11 and the outward direction T2 side of the main body film 12.
Are disposed on both the inward direction T1 side of the The central portion in the width direction W of the main body backsheet 14 is
It is disposed on the side of the main film 12 in the outward direction T2. The outer side in the width direction than the central portion of the main body back sheet 14 is folded back inward in the width direction starting from the outer edge of the main body film 12, and is disposed on the inward direction T1 side of the main body top sheet 11. As the main body back sheet 14, a sheet such as non-woven fabric is used. The main body top sheet 11 and part of the main body back sheet 14 are disposed on the skin surface side of the absorber, and constitute a skin surface side sheet.

The main body backsheet 14 of the present embodiment is disposed on both the outward T2 side of the main body film 12 and the inward T1 side of the main body topsheet 11, but in the modification, the main body backsheet 14 is the main body The film 12 may not be disposed on the side of the outward direction T2. In the said modification, it is preferable to have the sheet | seat which covers the outer edge of a main body top sheet, and comprises the leak-proof gatherer mentioned later.

In addition, the main film 12 and the main backsheet 14 are joined via an adhesive.
The non-joining area | region A1 in which the main body film 12 and the main body backsheet 14 are not joined is shown by FIG.3 and FIG.5. FIG. 5 is a plan view of the absorbent body. In FIG. 5, the hatched area is the non-junction area A1. In the area other than the non-joining area A1, the main body back sheet and the main body film are joined via an adhesive such as an HMA type adhesive.

The main body film 12 and the main body back sheet 14 are not joined in a predetermined region extending in the width direction from the center in the width direction of the absorber 13. Body film 12 and body back sheet 14
The non-bonding area A1 is provided in the area surrounded by the pressing portion 80 described later in plan view. The non-joining area A1 is biased to the front side of the center of the main body back sheet 14 in the front-rear direction.

In addition, other structural members (for example, a main body top sheet and an absorber) other than the main body film 12 and the main body back sheet 14 are also joined via an adhesive. However, illustration is omitted in the description of the present embodiment.

The shorts-type napkin 1 is formed with a waist opening 31 into which the wearer's waist is inserted, and a pair of leg openings 32 into which the wearer's legs are respectively inserted. Waist opening 31
Is formed surrounded by the front end edge 20F of the chassis 20 and the rear end edge 20R of the chassis 20.

The chassis 20 has an exterior top sheet 21, an exterior back sheet 22, and a stretchable member disposed so as to extend at least in the width direction W. The length in the width direction of the front waist belt member 41 constituting the chassis 20 and the length in the width direction of the rear waist belt member 42 are as follows:
It is longer than the length in the width direction of the absorbent body 10.

The exterior top sheet 21 is made of a non-woven fabric having stretchability that can stretch at least in the width direction. The exterior backsheet 22 is disposed on the outward direction T2 side of the exterior topsheet 21. The exterior back sheet 22 is made of a non-stretchable non-woven fabric.

The exterior top sheet 21 is a front exterior top sheet 24 located on the front waist area S1 side,
And a rear exterior top sheet 25 positioned on the rear waistline region S2 side. The front exterior top sheet 24 and the rear exterior top sheet 25 are separated in the front-rear direction L. The exterior back sheet 22 is provided over the front waist area S1, the crotch area S3, and the rear waist area S2.

The front end edge 24F of the front exterior topsheet 24 and the front end edge 22F of the exterior backsheet 22 are located within the front waistline region S1, and are folded back at the front end edge 20F of the chassis 20. Front end edge 24F of the front exterior top sheet 24 and front end edge 22 of the exterior back sheet 22
A waist elastic member 26 as an elastic member is disposed at a portion where F is folded back. The waist elastic member 26 is fixed between the front exterior topsheets 24 in a state of being stretched in the width direction.

Rear end 25R of the rear exterior top sheet 25 and rear end 22R of the exterior back sheet 22
Is located in the rear waist region S2, and is folded forward at the rear end edge 20R of the chassis 20. Rear edge 25 R of rear exterior top sheet 25 and rear edge 2 of exterior back sheet 22
A waist elastic member 26 as an elastic member is disposed at a portion where 2R is folded back. The waist elastic member 26 is fixed between the rear exterior top sheets 25 in a state of being stretched in the width direction.

The rear end edge 24R of the front exterior top sheet 24 is located in the crotch region S3 and is located forward of the center 1LC of the napkin 1 in the front-rear direction. The front end edge 25F of the rear exterior topsheet 25 is located in the crotch region S3 and is located rearward of the center 1LC in the front-rear direction of the napkin 1.

Between the rear exterior topsheet 25 and the exterior backsheet 22, a leg-surrounding elastic member 27 as an elastic member is disposed. The leg elastic members 27 are leg elastic members 27.
And a second region 27B extending from the first region toward the inside in the width direction.

Absorbent main part 10 has pressing part 80 by which a skin side sheet and an absorber were compressed in the thickness direction. In the squeezed portion 80 of the present embodiment, the main body top sheet 11 constituting the absorber 13 and the skin side sheet is compressed in the thickness direction. The squeezing unit 80 includes an absorber 13 and a main body top sheet 11.
Is compressed in the thickness direction, the body fluid discharged to the main body top sheet 11 can be drawn into the absorber 13 through the main body top sheet 11.

The squeezing unit 80 includes an excrement opening squeezing unit 81, a front side squeezing unit 82, and a rear side squeezing unit 83. The excretion opening pressing portion 81, the front pressing portion 82, and the rear pressing portion 83 are continuous in the front-rear direction L. The pressing portion 80 is annular in plan view. The range of the front-back direction of the excretion opening pressing part 81, the range of the front-back direction of the front side pressing part 82, and the range of the front-back direction of the back side pressing part 83 are shown in FIG.

In addition, the pressing part does not need to continue the excretion opening pressing part 81 and the front side pressing part 82 in the front-back direction, and the discharge opening pressing part 81 and the rear side pressing part 83 are continuing in the front-back direction L It may not be necessary, and any one of the excretory opening pressing unit 81, the front pressing unit 82, and the rear pressing unit 83 may be configured by a plurality of divided pressing units. The pressing portion 80 may not be annular in plan view.

The excrement opening squeezing portion 81 is located on both outer sides in the width direction than the excrement opening facing portion disposed opposite to the excretory opening of the wearer. The excretory mouth pressing part 81 extends in the front-rear direction. The discharge port facing portion is a region sandwiched by the pair of discharge port pressing portions 81. The discharge port facing portion includes a region in which the inner edge 32E of the leg-surrounding opening 32 is disposed in the front-rear direction, and from the inner edge 32E in the front-rear direction L
It is an area extending to The discharge port facing portion of the present embodiment is the center 1 L of the napkin 1 in the front-rear direction.
It is located in front of C and located inward in the front-rear direction than the side joint 29.

The excretory opening squeezing portion 81 includes a first convex portion 811 that protrudes inward in the width direction W, and a second convex portion 812 that is positioned forward of the first convex portion 811 and that protrudes outward in the width direction. , 1st convex part 8
And a third convex portion 813 which is located rearward of 11 and protrudes outward in the width direction W.
The second convex portion 812, the first convex portion 811, and the third convex portion 813 are continuous in the front-rear direction.

The center 81 LC in the front-rear direction L of the excretory mouth squeezing portion 81 is located in the crotch region S 3 in the extended state, and is located forward of the center 1 LC in the front-rear direction of the napkin 1. Discharge mouth pressing part 8
A center 81 LC in the front-rear direction L of 1 is located in the first convex portion 811. The first convex portion 811 is a vertex (inner edge) of the first convex portion 811 and a third convex portion 813 from an intermediate point 814 between the vertex (inner edge) of the first convex portion 811 and the vertex of the second convex portion 812. The range to the midpoint 815 with the vertex of More preferably, the center 81 LC of the excretory mouth squeezing portion 81 in the front-rear direction L is the apex of the first convex portion 811 (
It may coincide with the inner edge).

Further, in the range in which the first convex portion 811 is disposed in the front-rear direction L, the leg opening 32 is provided.
The inner edge 32E of the is disposed. The distance between the center 81 LC in the front-rear direction of the excretory mouth pressing portion 81 and the center 1 LC in the front-rear direction of the napkin 1 is 10 mm or more and 90 mm or less, more preferably 40 mm or more and 60 mm or less. In addition, the length of the absorber 13 in the width direction is 80 m
It is preferable that it is m or more and 100 mm or less, and the space | interval of a pair of 1st convex part is 35 mm or more and 45 mm or less. The length of the width direction of the absorber of this embodiment is 90 mm, and the distance between a pair of 1st convex parts is 40 mm. In addition, the distance in this Embodiment is a distance in the expansion | extension state of an absorbent article.

The front squeezing portion 82 is continuous with the pair of first front squeezing portions 821 extending in the front and rear direction on the front side of the excrement opening squeezing portion 81 and the front end edge of the pair of first front squeezing portions 821 and extends in the width direction And a part 822. The rear end edge of the first front pressing portion 821 and the front end edge of the excretion opening pressing portion 81 are continuous with each other. The boundary between the first front pressing portion 821 and the excretory opening pressing portion 81 is located in a convex portion that protrudes inward in the width direction.

The rear side pressing portion 83 is continuous with the rear end edge of the pair of first rear side pressing portions 831 extending in the front and rear direction on the rear side of the excrement opening pressing portion 81 and the pair of first rear side pressing portions 831 And an extending second rear side pressing portion 832. The front end edge of the first rear side pressing portion 831 and the rear end edge of the excretion opening pressing portion 81 are continuous with each other. The boundary between the first rear side pressing portion 831 and the excretory opening pressing portion 81 is located in a convex portion protruding inward in the width direction.

The first front pressing portion 821 and the first rear pressing portion 831 may be formed to be inclined with respect to a straight line along the front-rear direction L, and a straight line along the front-rear direction L, a first straight The angle (the acute angle side) formed by the front side pressing portion 821 and the like is 45 degrees or less. on the other hand,
The second front squeezing portion 822 and the second rear squeezing portion 832 may be formed to be inclined with respect to the straight line along the width direction W, and the straight line along the width direction W and the second front squeezing portion The angle (acute angle side) formed by the portion 822 or the like is less than 45 degrees.

A pair of front side pressing portions 84 extending in the front-rear direction is formed on the outer side in the width direction of the front pressing portions 82. A pair of rear side pressing portions 85 extending in the front-rear direction is formed on the outer side in the width direction of the rear pressing portions 83. The front side pressing portion 84 and the front pressing portion 82 are separated in the width direction. The rear side pressing portion 85 and the rear side pressing portion 83 are separated in the width direction. The rear end edge of the front side pressing portion 84 is located on the front side of the front end edge of the excretion opening pressing portion 81. The front end edge of the rear side pressing portion 85 is located rearward of the rear end edge of the waste opening pressing portion 81.

The rear side pressing portion 85 is located rearward of the center 1 LC in the front-rear direction of the napkin 1 and does not overlap the center 1 LC in the front-rear direction of the napkin 1. The front side pressing portion 84 is located in front of the center 1 LC in the front-rear direction of the napkin 1 and does not overlap the center 1 LC in the front-rear direction of the napkin 1.

The basis weight of the absorber of the present embodiment is not constant. The absorber 13 has a portion with a high basis weight and a portion with a low basis weight. For example, the basis weight of the absorber of the part in which the front side pressing part 82 was formed is lower than the basis weight of the absorber in the center of the width direction of the excretion opening opposing part. Moreover, the fabric weight of the absorber in the center of the width direction of the excretion opening opposing part is higher than the fabric weight of the absorber of the part in which the excretion opening pressing part 81 was formed. Specifically, the basis weight of the absorber at the center in the width direction of the discharge opening facing portion is 600 g / m ² , and the basis weight of the absorber at the portion where the discharge opening pressing portion 81 is formed is 300 g / m ² is there. The basis weight of the absorber at the center in the width direction of the discharge port facing portion is twice the basis weight of the absorber at a portion where the discharge port pressing portion 81 is formed. Moreover, the fabric weight of the absorber of the part in which the front side pressing part 82 was formed is 150 g / m < ² >. The absorber may have a constant basis weight.

The absorbent main body 10 has a standing leak-proof gather. The leakproof gather 60 is provided at the outer edge of the absorbent body 10. The leakproof gather 60 is an upright gather disposed inwardly of the absorber 13. The leakproof gather 60 is constituted by a main body backsheet 14 and a leakproof stretchable member 15 disposed between the main body backsheet 14.

Leak-proof gather 60 is located on the outer side of leak-proof gather 60 on the main body top sheet 1
A joint portion 61 joined to the back side member such as 1 and a contraction portion 62 disposed in the leakproof stretchable member 15 and not joined to the back side member and contracted in the front-rear direction by the leakproof stretchable member 15; Have. In the leakproof gather 60, the joined portion 61 where the main body back sheet 14 and the main body top sheet 11 are joined is shown hatched. The joint portion 61 has a first joint portion 61A positioned outside the contraction portion 62 in the width direction, and second joint portions 61B positioned on both outer sides in the front-rear direction than the contraction portion 62.

The back surface side member should just be a member located in the outward direction side rather than the leakproof gathers 60, for example, the main body top sheet 11, the main body film 12, and the main body back sheet 14 can be illustrated.
At the time of wearing, the leakproof gathers 60 stand up with the joint portion 61 as a base end portion, and the contraction portion 62 makes contact with the skin of the wearer as an apex portion. That is, the joint portion is the proximal end of the rise of the leakproof gather. Because the main body back sheet 14 is configured to have water repellency,
The leak-proof gathers can prevent side leakage such as menstrual blood discharged from the wearer.

The contraction portion 62 is located between the front second joint portion 61B and the rear second joint portion 61B. The contraction portion 62 is a portion substantially contracted in the front-rear direction by the leakproof stretchable member 15, and is a concept excluding the portion where the leakproof stretchable member 15 is disposed in a state where the contraction force is not exerted.

The pressing portion 80 extends in the front-rear direction more than the contraction portion 62. Thus, the front end edge of the squeezing portion is located forward of the front end edge of the contraction portion. In addition, the rear end edge of the squeezing portion is located rearward of the rear end edge of the contraction portion. In addition, the squeezed portion 80 is located in front of the front end edge of the leakproof stretchable member 15. The squeezed portion 80 is located forward of the rear end edge of the leakproof stretchable member 15.

The length of the absorbent article in the stretched state can be measured by the following method. The extension state is a state in which the waist elastic member, the leg elastic member, and the leakproof elastic member are expanded,
More specifically, the absorbent article is stretched from a natural state to a state where wrinkles by the stretchable member can not be visually confirmed.

When the absorbent article is enclosed in a package or the like, it is taken out of the package and left for 12 hours under the atmosphere of (20-2 to 20 + 2) ° C and relative humidity (60-5 to 60 + 5)% RH in that state. Use the sample you Next, the side joints are separated cleanly by cold spray or the like to develop the absorbent article. Then, the absorbent article is pulled to a stretched state and fixed to a plate, and is measured with a ruler so as to be along a measurement target site.

Moreover, the fabric weight of an absorber can be measured with the following method. The portion for measuring the fabric weight is cut out from the absorbent article, the portion other than the absorber such as the main body top sheet and the main body film is removed, and the weight of the absorber is measured. The basis weight is calculated based on the weight of the absorber and the area of the portion where the basis weight is to be measured.

(2) Wearing State of the Shorts-Type Napkin Next, the wearing state of the shorts-type napkin thus configured will be described. Fig. 6 (a)
(B) shows the deformation | transformation state of the shorts type | mold napkin which concerns on this Embodiment. Figure 6 (a) is
It is sectional drawing on the basis of the AA cross section of FIG. FIG. 6B is a cross-sectional view based on the B-B cross section of FIG. 1. FIG.6 (c) shows the deformation | transformation aspect of the absorbent article which concerns on a comparative example. Figure 6 (c
) Is a cross sectional view based on the cross section AA of FIG.

When the shorts-type napkin is sandwiched between the legs of the wearer in the worn state, the short-type napkin receives a force directed inward in the width direction. As shown in FIG. 6A, in the cross section passing through the center in the front-rear direction of the excretory mouth pressing portion 81, the excrement located at the inside of the excretory mouth pressing portion 81 in the width direction starting from the excretory mouth pressing portion 81. The mouth facing portion deforms in a convex manner in the inward direction. Therefore,
The part opposite to the discharge port fits in the vaginal opening. Main body back sheet 1 at the widthwise center of the absorber
Since the body film 12 and the body film 12 are not joined, the body film 12 and the absorber 13 are separated from the chassis 20 and the body back sheet 14 and bulge inward.

Further, as shown in FIG. 6B, in the cross section passing through the rear side pressing portion 85 and the rear side pressing portion 83, the rigidity on the outer side in the width direction than the rear side pressing portion 83 by the rear side pressing portion 85. Therefore, the portion provided with the rear side pressing portion 85 can easily maintain a flat state. Although not shown, also in the cross section passing through the front side pressing portion 84 and the front pressing portion 82, the front side pressing portions 84 are provided because the rigidity on the outer side in the width direction is higher than the front pressing portions 82 by the front side pressing portions 84. It is easy to maintain the flat part of the By providing flat areas at four places on both outer sides in the width direction of the front pressing part 82 and on both sides in the width direction of the rear pressing part 83, the area surrounded by the pressing parts 80 is pressed inward in the width direction. , The entire area surrounded by the pressing portion 80 bulges inward.

Further, in the state shown in FIG. 6 (a), only the main body back sheet 14 is raised inward by the contraction portion 62 of the leakproof gatherer 60, and the side edge of the absorbent main body is raised inward. Absent. In the thickness direction T, the position of the outer edge of the absorbent main body 10 substantially coincides with the position of the excretory opening pressing portion 81. Therefore, when a force directed inward in the width direction from the wearer is applied to the absorbent main body 10, a force along the width direction is applied to the excretory orifice pressing portion 81 via the outer edge of the absorbent main body 10. The excrement opening pressing portion 81 is a portion where the thickness of the absorbent main body 10 is recessed. Therefore, when a force along the width direction is applied to the excrement opening squeezing portion 81, a force directed inward in the width direction toward the inward direction T1 is applied to the inside of the width direction from the excrement opening squeezing portion 81. Accordingly, the discharge port facing portion sandwiched by the discharge port pressing portion 81 bulges inward.

On the other hand, FIG. 6 (c) is a shorts-type napkin according to the comparative example. In the shorts-type napkin according to the comparative example, the length in the front-rear direction of the contraction portion is longer than the length in the front-rear direction of the pressing portion, and the side edge of the absorbent main body is deformed inward by the contraction portion. In the state shown in FIG. 6C, not only the main body back sheet but also the outer edge of the absorbent main body rises in the inward direction due to the contraction portion of the leakproof gathers. The position of the outer edge of the absorbent body is located on the inward side of the position of the excretory opening pressing portion 81. Therefore, when a force directed inward in the width direction from the wearer is applied to the absorbent main body, a force directed inward in the width direction and outward T2 is applied to the excretory opening pressing portion 81 via the outer edge of the absorbent main body. Hang. When a force directed inward in the width direction and outward is applied to the excretory opening pressing portion 81, a force further inward in the width direction and outward is applied on the inside in the width direction than the excrement opening pressed portion 81. Thus, the discharge port facing portion sandwiched by the discharge port pressing portion 81 bulges outward.

(3) Function and Effect Since the short-type napkin is used, the wearer wears the short-type napkin as it is without wearing it on the undergarment. The shorts-type napkin has a waist opening and a leg opening, so when the leg and the waist are inserted, the central position in the longitudinal direction of any wearer is substantially constant with respect to the body become.

As a result of various investigations conducted by the applicant, it has been found that the vaginal opening of the wearer is generally located on the front side of the center of the short-shaped wearing article (underwear, shorts-type napkin) in the crotch region. The

Between the center in the front-rear direction of the chassis 20 according to the present embodiment and the side joint portion 29, a center 81LC in the front-rear direction of the excrement-mouth pressing portion 81 is positioned. The area sandwiched by the center 81 LC in the front-rear direction of the excretory mouth squeezing portion 81 is the excretory mouth squeezing portion 8 when the shorts type napkin is sandwiched.
It deforms inward in the width direction starting from 1 and bulges inward.

In the front-rear direction, the center 81 LC in the front-rear direction of the excretory opening squeezing portion 81 is located in the region facing the vaginal opening, so that the raised portion starting from the excretory opening squeezing portion 81 can be applied to the vaginal opening . The bulging part of the absorber 13 fits to the wearer's vaginal opening, and leakage of body fluid can be suppressed.

Since the shorts-type napkin of the present embodiment is a shorts-type, positional deviation of the absorber 13 in the front-rear direction is unlikely to occur, and the swelling portion of the absorber 13 with respect to the vaginal opening in any wearer It can be used to control the occurrence of leaks.

The basis weight of the absorber 13 at the center in the width direction of the discharge port facing portion is higher than the basis weight of the absorber 13 in the portion where the discharge port pressing portion 81 is formed. Therefore, the center in the width direction of the discharge port facing portion bulges inward in the state before deformation. Therefore, when pinched by the wearer's leg, the center in the width direction of the excretion opening facing part easily fits to the wearer's vaginal opening. In addition, the absorption capacity of the part facing the excretory port becomes high, and menstrual blood is difficult to spread. Therefore, even when a large amount of menstrual blood is absorbed, leakage hardly occurs. The basis weight of the absorber 13 of the part in which the excretion opening pressing part 81 was formed is comparatively low.
For example, if the fabric weight of the absorber 13 in the portion where the excretory mouth pressing portion 81 is formed is too high, the portion where the excretory mouth pressing portion 81 is formed becomes hard, and the discomfort when the excretory mouth pressing portion 81 hits the leg May occur. However, since the fabric weight of the absorber of the part in which the excretion opening pressing part 81 was formed is comparatively low, the discomfort when the excretion opening pressing part 81 hits a leg can be suppressed.

Since the center 81 LC in the front-rear direction of the excretory opening squeezed portion 81 is located in the first convex portion 811, the absorber 13 is easily deformed starting from the first convex portion 811 when the absorber 13 is sandwiched by the legs . Therefore, the part pinched by the 1st convex part 811 of the excretion mouth pressing part 81 on either side tends to be deformed so that it may swell in the inward direction side, and it fits in a wearer's vaginal opening.

Further, the inner edge 32E of the leg opening 32 is a portion at which the wearer's leg is located at the innermost side in the width direction. Because the position of the inner edge 32E of the leg opening 32 in the front-rear direction and the position of the first protrusion 811 in the front-rear direction overlap, the force pinched by the wearer's leg is the first protrusion of the excretory opening pressing portion 81. The portion 811 can be easily caught, and a bulge that strikes the wearer's vaginal opening can be formed more reliably.

In addition, if the shorts-type napkin is shrunk too much in the front-rear direction by the leakproof gather 60,
As shown in FIG. 6C, the outer edge of the absorbent main body 10 protrudes in the inward direction T1 by the leakproof elastic member 15, and the widthwise center of the absorbent main body 10 (in the width direction than the leakproof elastic member Inward region is deformed so as to protrude in the outward direction T2. That is, the shorts-type napkin 1 is deformed in a convex shape outward in a cross-sectional view along the width direction. In the deformed state, the excretion opening facing portion is separated from the wearer's body, and the fit is reduced.

However, the pressing portion 80 of the shorts-type napkin of the present embodiment extends outward in the front-rear direction more than the contraction portion 62 of the leakproof gather 60. The area where the pressing portion 80 is formed is the pressing portion 8
The rigidity is high compared to the region where 0 is not formed. Therefore, even if a force that contracts inward in the front-rear direction is applied by the contraction portion 62, the shape of the absorber 13 is maintained by the rigidity of the pressing portion 80. Therefore, it can suppress that a shorts type | mold napkin deforms convexly to the outward direction T2. The outer edge of the absorbent main body 10 maintains a flat state, and the region at the widthwise center of the absorbent main body (inner side in the width direction than the leakproof stretchable member) starts inward from the discharge opening squeezed portion 81 It deforms to protrude. Therefore, the shorts-type napkin 1 deforms inward in a convex shape in a cross-sectional view along the width direction.

In addition, the vaginal opening of the wearer is on the front side of the longitudinal center of the short-type wearing article (underwear, shorts-type napkin) and the longitudinal center of the short-type wearing article and the vaginal opening of the wearer Is often 40 mm or more and 60 mm or less. In the position facing the wearer's vaginal opening,
By arranging the center of the excretory mouth squeezing portion 81 in the front-rear direction, the shorts type napkin is deformed inward in the width direction starting from the excretory squeezing portion 81 when the shorts type napkin is sandwiched by the legs of the wearer. The part pinched by the pair of excrement opening squeezing portions 81 bulges inward. Therefore, the bulging part of an absorber fits with respect to a wearer's vaginal opening, and can suppress the leak of a bodily fluid.

The length in the width direction of the absorber is 80 mm or more and 100 mm or less, and the distance between the pair of first convex portions 811 is 35 mm or more and 45 mm or less. The shorts-type napkin used by being attached to the undergarment needs to be adjusted to the size of the undergarment (the length in the width direction of the crotch portion), and in general, the length in the width direction of the absorber is 75 mm or less. The shorts-type napkin used to wear underwear is
Since the length in the width direction of the absorber 13 is relatively short, lateral leakage of menstrual blood may occur, or the discharge port facing portion may not be deformed into a state in which the discharge port facing portion is sufficiently expanded in the inward direction. The shorts-type napkin 1 according to the present embodiment does not have to be matched to the size of the undergarment, and the width of the absorbent body 13 can be sufficiently secured to improve the absorption performance. In addition, the distance between the pair of first convex portions 811 is 35 m
m or more and 45 mm or less. By securing a large distance between the pair of first convex portions 811,
The inward side can be raised higher to improve fit.

A second front squeezing portion 822 extending in the width direction is formed on the front side of the excrement opening squeezing portion 81. By providing the second front squeezing portion 822, it is possible to prevent an unintended deformation (twisting) when a force is applied from the outside in the width direction on the front side of the portion facing the vaginal opening (outlet opening facing portion) . In addition, when the fabric weight on the front side of the excretion opening facing portion is too high, the user may easily feel discomfort. However, the fabric weight of the absorber of the part in which the front side pressing part 82 was formed is lower than the fabric weight of the absorber in the center of the width direction of the excretion opening opposing part, and can suppress discomfort.

When the rigidity on the outer side in the width direction of the front pressing portion 82 and the rigidity on the outer side in the width direction of the rear pressing portion 83 are low, when the shorts type napkin 1 is attached, the compression force from the outer side in the width direction The outer side in the width direction of the portion 82 and the outer side in the width direction of the rear side pressing portion 83 bulge inward.
In this state, when a compressive force directed inward in the width direction further acts on the shorts-type napkin, the portion pinched in the front squeezing portion and the portion pinched in the rear squeeze portion by the force directed inward in the width direction It is easy to be deformed outward.

However, by providing the front side pressing portion 84 and the rear side pressing portion 85, the front side pressing portion 84 and the rear side pressing portion 85 maintain a flat state, and the front pressing portion 8
The outer side of the width direction 2 of 2 and the outer side of the width direction of the back side pressing part 83 do not rise easily to an inner side. Therefore, the outer side in the width direction of the front side pressing portion 82 and the outer side in the width direction of the rear side pressing portion 83 can maintain the same position (vertical position) as the front side pressing portion 82 and the rear side pressing portion 83. In this state, when the compressive force directed inward in the width direction further acts on the shorts-type napkin 1, the absorbent body 13 passes through the outside in the width direction of the front pressing portion 82 and the outside in the width direction of the back pressing portion 83. An upward force can be applied to the lower portion, and the widthwise center of the absorber bulges inward.

The front side pressing portion 84 and the rear side pressing portion 85 have a center 1 L in the front-rear direction of the napkin 1.
It does not overlap C. In the shorts-type napkin 1, the side joint portion 29 is formed in a state of being folded from the center 1 LC in the front-rear direction of the napkin 1 as a starting point, and circulates in the state folded from the center 1 LC in the front-rear direction of the napkin 1 . Therefore, the center 1 of the napkin 1 in the front-rear direction
A fold is formed on the LC. For example, the front side pressing portion 84 and the rear side pressing portion 8
When 5 overlaps with the center 1 LC in the front-rear direction of the napkin 1, the effect of maintaining the flat state by the front side pressing portion 84 and the rear side pressing portion 85 may be reduced. However, since the front side pressing part 84 and the rear side pressing part 85 do not overlap the center 1 LC in the front-rear direction of the napkin 1, the flat state can be maintained by the front side pressing part 84 and the rear side pressing part 85.

The bonding area of the main body film 12 and the main body back sheet 14 is not provided at the center in the width direction of the absorber 13 but at a position shifted outward in the width direction from the center in the width direction of the absorber 13. Therefore, the absorber 1 positioned in the inward direction T1 relative to the main body film 12 and the main body film 12
At the center in the width direction of the absorbent body 13, the main body back sheet 14 and the main body back sheet 14 can be deformed apart from the chassis 20 located in the outward direction T2. Therefore, at the center in the width direction of the absorber 13, the absorber can be deformed more freely, and the absorber is easily deformed so as to expand in the inward direction. Therefore, the fit can be improved.

The short-type napkin of the present embodiment is worn by the wearer directly (without the use of underwear). Therefore, the configuration for improving the wearing feeling is provided. Specifically, the basis weight of the absorber of the excretion opening facing portion is 700 g / m ² or less. If the weight of the absorber at the discharge opening facing portion is too high, the discharge opening pressing portion 81 becomes too hard, and the wearing feeling may be deteriorated. Since the fabric weight of the absorber of the excretion opening opposing part is 700 g / m < ² > or less, the excretion opening pressing part 81 does not become too hard, and it can suppress discomfort.

In addition, the thickness of the absorbent core on the front side of the excretion port facing portion and the thickness of the absorbent core on the rear side of the excretion port facing portion are 3.0 mm or less. If the thickness of the absorbent core at the front and rear of the discharge port facing portion is too thick, stuffiness and discomfort may occur at the time of wearing. The maximum value of the thickness of the absorbent core in front of the excretion opening facing portion of the present embodiment and the thickness of the absorption core in the rear of the excretion opening facing portion is 2.8 mm. On the other hand, the thickness of the absorption core of the excretion opening opposite part is 8.0 mm or more. The fit to the vaginal opening can be improved by sufficiently securing the thickness of the absorbent core of the discharge opening facing portion.

In addition, the exterior top sheet that constitutes the chassis has stretchability in the width direction. The exterior top sheet is arranged to cover the entire circumference of the waist of the wearer. Thus, the entire chassis of the shorts-type napkin fits around the waist of the wearer, and the short-type napkin does not leave the body or sag from the body, and the user can obtain a feeling of wearing like underwear.

(4) Other Embodiments As described above, although the contents of the present invention have been disclosed through the embodiments of the present invention, it is understood that the descriptions and the drawings that form a part of this disclosure are to limit the present invention. You should not. Various alternative embodiments, examples and operation techniques will be apparent to those skilled in the art from this disclosure.

The shorts-type napkin may have an intermediate sheet disposed between the absorbent body and the top sheet. In addition, the shorts-type napkin may have a plurality of surface sheets.

Moreover, the center of the front-back direction of the excretion opening pressing part may be located in the convex part of the shape which protrudes toward the outer side of the width direction. Even in the configuration in which the center of the fore-and-aft direction of the excretory mouth compressed portion is positioned in the convex portion of the shape projecting outward in the width direction, the absorber deforms from the convex portion as a starting point when sandwiched by the legs. It is easy to deform the part pinched by the center of the front-back direction of the excretion mouth pressing part so that it may swell in the inward direction side.

1: Shorts type napkin 1 LC: Center of longitudinal direction of napkin 10: Absorbent body 11: Body top sheet 12: Body film 13: Absorbent body 14: Body back sheet 15: Leak-proof stretchable member 20: Chassis 21: Exterior top Seat 22: exterior back sheet 24: front exterior top sheet 25: back exterior top sheet 26: waist elastic member 27: leg elastic member 29: side joint 31: waist opening 32: leg opening 41: front waist belt member 42: rear waist belt member 60: leakproof gather 61: joint portion 62: contraction portion 80: compression portion 81: discharge opening compression portion 81LC: center 82 in the front-rear direction of discharge opening compression portion: front compression Part 83: back side pressing part 84: front side pressing part 85: back side pressing part A1: non-joining area S1: front waist area 2: the rear waist region S3: crotch region L: longitudinal direction T: thickness direction W: widthwise direction

Claims (7)

It has an anteroposterior direction extending to the front and rear of the wearer's body, a width direction orthogonal to the anteroposterior direction, an inward direction toward the wearer, and an outward direction opposite to the inward direction;
It is located between the front waist area located on the front side of the body, the back waist area located on the rear side of the body, and between the front waist area and the back waist area, and is placed under the wearer's crotch. And the inseam area,
An absorbent body having a skin sheet and an absorbent body;
A front waist belt member disposed in the front waist region;
A rear waist belt member disposed in the rear waist region;
A side joint where the outer edge of the front waist belt member and the outer edge of the rear waist belt member are joined;
A pair of leg-around openings disposed around the wearer's legs;
A waist opening located around the waist of the wearer;
It is a shorts type napkin which has a pressing part by which said skin side sheet and said absorber were squeezed in the thickness direction,
The squeezing portion has a pair of excretory opening squeezing portions extending in the front-rear direction on both outer sides in the width direction than the excretory opening facing portion disposed opposite to the excretory opening of the wearer,
The center of the excretory crusher in the front-rear direction is located forward of the center in the front-rear direction of the napkin in the crotch region,
The portion of the leg opening located at the innermost side in the width direction is located in front of the center of the napkin in the front-rear direction, and within the range in which the excretory orifice pressing portion is disposed in the front-rear direction.
The absorbent body has a standing leak-proof gather,
The leakproof gather is a shrinking portion that is contracted by the leakproof stretchable member that stretches in the front-rear direction;
A first joint portion provided on the outer side in the width direction than the contraction portion and joined to a back surface side member positioned outward of the leakproof gather;
And a second joint portion provided on both outer sides in the front-rear direction than the contraction portion and joined to the back surface side member,
The front end edge of the squeezing portion is located forward of the front end edge of the contraction portion.   2. The shorts-type napkin according to claim 1, wherein the basis weight of the absorber at the center in the width direction of the discharge port facing portion is higher than the basis weight of the absorber at a portion where the discharge port pressing portion is formed. The excretory opening squeezing portion has a convex portion that protrudes toward the outer side in the width direction or the inner side in the width direction,
The shorts-type napkin according to claim 1 or 2, wherein a center in a front-rear direction of the excrement opening squeezing portion is located in the convex portion.   The shorts-type napkin according to claim 3, wherein the portion of the leg opening located at the innermost side in the width direction is located in a range in which the convex portion is disposed in the front-rear direction. The distance between the center in the front-rear direction of the excretory mouth pressed portion and the center in the front-rear direction of the napkin in the stretched state of the napkin is 40 mm or more and 60 mm or less. Shorts type napkin described. The length in the width direction of the absorber is 80 mm or more and 100 mm or less,
The shorts type napkin according to any one of claims 1 to 5, wherein an interval in the width direction at the center in the front-rear direction of the pair of excretory opening pressing portions is 35 mm or more and 45 mm or less. A main film disposed on the outer side with respect to the absorber;
And a main body back sheet disposed on the outer side with respect to the main body film and joined to the main body film.
The portion of the leg opening located at the innermost side in the width direction is located in front of the center of the napkin in the front-rear direction, and within the range in which the excretory orifice pressing portion is disposed in the front-rear direction.
A non-joining area in which the main body film and the main body back sheet are not joined is provided in a predetermined area extending in the width direction from the center in the width direction of the absorber.
The shorts-type napkin according to any one of claims 1 to 6, wherein the non-joining area is biased to the front side with respect to the center in the front-rear direction of the main body back sheet.

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