JP2007097619A - Absorptive article and paper diaper - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To easily judge the leakage of body liquid from the end part on the width direction side of an absorbent. <P>SOLUTION: An inner pad 1 is provided with a liquid permeable top sheet 2, a liquid impermeable back sheet 3 and the absorbent 4 disposed between the top sheet and the back sheet and is to be attached to a diaper main body. The absorbent is formed in a long length in a direction almost equal to the direction from the back side through the crotch to the abdominal side, and a plurality of inner side body liquid absorption display parts 61 indicating whether or not the body liquid is absorbed are provided side by side in the longitudinal direction on a boundary part B overlapped with the edge part on the side of the width direction Y roughly orthogonal to the longitudinal direction of the absorbent on the surface on the human body side of the top sheet. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an absorbent article such as an inner pad or a paper diaper that absorbs body fluid.

Conventionally, a pants-type disposable diaper having a liquid-permeable top sheet, a liquid-impermeable back sheet, and an absorbent body interposed between the top sheet and the back sheet from the back side to the crotch side to the abdomen side Absorbent articles such as are known.
Further, as an absorbent article, an inner pad having an absorbent body attached to a human body side surface of a top sheet of a paper diaper is also known.

  By the way, in order to judge the presence or absence of the discharge | emission of the bodily fluid from the human body, such as urination, what was provided with the indicator discolored with a bodily fluid is developed for the absorbent article (for example, refer patent document 1).

JP 2004-298571 A

  By the way, in the case of the said patent document 1 grade | etc., The indicator is provided along the absorber in the approximate center part of the width direction substantially orthogonal to the longitudinal direction ranging from the back | dorsal side of the absorbent article to the stomach side. For this reason, it has been said that it is impossible to determine whether or not the fluid leaks from the inner pad or the end of the inner pad in the width direction when the body fluid exceeding the allowable absorption amount is discharged from the human body. There's a problem. That is, if the indicator is only provided at the substantially central portion in the width direction, leakage of bodily fluid from the end portion of the inner pad absorbent body in the width direction and bodily fluid to the diaper main body from the end portion of the inner pad in the width direction. Judgment of leakage is difficult.

  Accordingly, an object of the present invention is to provide an absorbent article capable of easily determining leakage of body fluid from the end portion on the width direction side of the absorbent body, and leakage of body fluid from the end portion on the width direction side of the inner pad. It is to provide a disposable diaper that can be easily determined.

The invention according to claim 1 is, for example, as shown in FIGS.
An absorbent article (for example, comprising a liquid-permeable top sheet (2), a liquid-impermeable back sheet (3), and an absorbent body (4) disposed between the top sheet and the back sheet. , Inner pad 1 etc.)
The absorbent body is formed in an elongated shape in a direction substantially equal to the direction extending from the back side to the abdomen through the crotch,
At least one of the one surface of the top sheet and the surface on the absorber side of the back sheet overlaps with the edge on the width direction (Y) side substantially orthogonal to the longitudinal direction (X) of the absorber. A plurality of inner body fluid absorption display portions (61, 61A, 61B, 61C, 61D, 61E) indicating whether or not body fluid is absorbed are provided in the boundary portion (B) in a line in the longitudinal direction. It is said.

  Here, the one surface of the top sheet is a surface on the human body side or a surface on the absorber side of the top sheet.

The invention according to claim 2 is an absorbent article according to claim 1, for example, as shown in FIGS.
An outer body fluid absorption display section (62, 62E) indicating whether or not body fluid is absorbed is provided on the outer side in the width direction than the boundary portion on the human body side surface of the absorbent article. It is said.

The invention described in claim 3 is, for example, as shown in FIGS.
A liquid-permeable top sheet (2), a liquid-impervious back sheet (3), and a plurality of absorbent bodies (204A, 204B, etc.) arranged in an overlapping manner between the top sheet and the back sheet An absorbent article (for example, inner pad 201 etc.) comprising:
Among the plurality of absorbent bodies, the first absorbent body (204A) disposed on the top sheet side and the second absorbent body (204B) disposed on the back sheet side of the first absorbent body, The length of the first absorbent body in the longitudinal direction (X) is substantially the same as the direction extending from the dorsal side through the crotch to the ventral side, and the length of the first absorbent body is the longitudinal direction of the second absorbent body Is shorter than the length of
The longitudinal side edge of the first absorbent body and the surface of the second absorbent body overlap each other on the absorbent body side surface of the backsheet, and the longitudinal direction of the first absorbent body A laminated body fluid absorption display portion (261) indicating whether or not the body fluid is absorbed is provided at the boundary portion (2B) that overlaps the edge portion on the width direction (Y) side substantially orthogonal to the above. .

For example, as shown in FIG. 10 and FIG.
An inner pad (301), a liquid-permeable top sheet (for example, the main body-side top sheet 320) to which the inner pad is attached, a liquid-impermeable back sheet (for example, the main body-side back sheet 330), and the top A paper diaper (300) comprising an absorbent body (for example, main body side absorbent body 340) disposed between a sheet and the back sheet,
The inner pad is formed in an elongated shape in a direction substantially equal to the direction extending from the back side to the belly side through the crotch,
The width direction (Y) side substantially orthogonal to the longitudinal direction (X) of the inner pad on at least one of the absorber side surface of the top sheet and the absorber side surface of the back sheet. A body side body fluid absorption display portion (361) indicating whether or not body fluid is absorbed is provided at a boundary portion (3B) overlapping with the edge portion.

According to the first aspect of the present invention, in the longitudinal direction of the absorber on at least one of the human body-side surface or the absorber-side surface of the top sheet and the absorber-side surface of the back sheet. Since a plurality of inner body fluid absorption display parts indicating whether or not body fluid is absorbed are provided side by side in the longitudinal direction at the boundary portion overlapping the orthogonal width direction side edges, the inner body fluid absorption display section provides the human body The body fluid is discharged from the body and absorbed in the edge of the absorbent body in the width direction, that is, the body fluid may leak from the end of the absorbent body in the width direction. Therefore, it is possible to easily determine the leakage of body fluid from the end of the absorbent body in the width direction.
Furthermore, since the plurality of inner body fluid absorption display parts are arranged in the longitudinal direction, how much body fluid can be absorbed by the absorber depending on the position of the predetermined inner body fluid absorption display part in the longitudinal direction, that is, A caregiver can be appropriately informed whether or not the absorbent article needs to be replaced.

  According to the second aspect of the present invention, it is of course possible to obtain the same effect as that of the first aspect of the invention, and in particular, the edge of the absorbent article in the width direction on the human body side surface. Since the outer body fluid absorption display part indicating whether or not the body fluid is absorbed is provided on the outer side in the width direction from the boundary part overlapping with the part, the end of the absorbent body in the width direction by the outer body fluid absorption display part The caregiver can be appropriately notified that the body fluid has leaked from the part.

  According to invention of Claim 3, the edge part of the longitudinal direction side of the 1st absorber in the surface at the side of the absorber of a backsheet and the surface of a 2nd absorber overlap, and 1st absorption Since the laminated body fluid absorption display unit indicating whether or not the body fluid is absorbed is provided at the boundary portion that overlaps the edge on the width direction substantially orthogonal to the longitudinal direction of the body, the laminated body fluid absorption display unit provides the human body The body fluid is discharged from the first absorbent body, in particular, the body fluid is absorbed at the edge in the width direction, that is, the body fluid leaks from the end in the width direction of the absorber. The caregiver can be informed that there is a possibility that the absorbent article needs to be replaced, and body fluid leakage from the end of the absorbent body in the width direction can be easily determined. .

  According to the fourth aspect of the present invention, at least one of the absorber-side surface of the top sheet and the absorber-side surface of the back sheet is on the width direction side substantially orthogonal to the longitudinal direction of the inner pad. Since the main body side body fluid absorption display part indicating whether or not body fluid is absorbed is provided at the boundary part overlapping the edge part, the body fluid discharged from the human body by the main body side body fluid absorption display part is The end of the inner pad in the width direction can be notified to the caregiver that the inner pad needs to be replaced due to leakage from the end of the inner pad in the width direction without being absorbed. It is possible to easily determine the leakage of bodily fluids.

  Hereinafter, specific embodiments of the present invention will be described with reference to the drawings. However, the scope of the invention is not limited to the illustrated examples.

[Embodiment 1]
FIG. 1 is a plan view showing an inner pad 1 according to a first embodiment to which the present invention is applied, and FIG. 2 is a cross-sectional view of a main part of the inner pad 1 taken along line II-II in FIG.
In the following description, the direction extending from the back side of the human body through the crotch to the ventral side with the inner pad 1 attached to the diaper main body 302 (see FIG. 10) is defined as the longitudinal direction X. A direction substantially orthogonal to X is defined as a width direction Y.

  The inner pad 1 of the first embodiment is attached to a diaper main body 302 that constitutes a paper diaper 300 (see FIG. 10), and specifically, as shown in FIG. 1 and FIG. And a crotch part 13 that covers the crotch between the abdomen side part 11 and the dorsal side part 12. Both edges on the width direction Y side of the crotch part 13 are formed so as to be recessed inward in correspondence with the shape of the paper diaper 300 to be mounted, for example.

  The inner pad 1 includes a liquid-permeable top sheet 2 provided on the contact surface side with the human body, a liquid-impervious back sheet 3 mounted on the diaper main body 302 side, and the top sheet 2 and the back sheet 3. The absorbent body 4 interposed therebetween, a pair of three-dimensional gathers 5 and 5 provided along the longitudinal direction X on the top sheet 2 side, and the width direction of the absorbent body 4 so as to overlap the absorbent body 4 A plurality of inner body fluid absorption display portions 61 provided on the inner side of the Y side end portion, and a plurality of outer body fluid absorption display portions 62 provided on the outer side of the width direction Y side end portion of the absorber 4. ,... Are provided.

  The top sheet 2 is formed of, for example, a liquid-permeable nonwoven fabric. Further, the top sheet 2 is made by, for example, a nonwoven fabric made from a hydrophobic synthetic resin fiber such as PE, PP (polypropylene) or PET (polyethylene terephthalate) treated with a surfactant by an air-through manufacturing method or heat embossing. A non-woven fabric, a spunbonded non-woven fabric made by extruding a hydrophobic synthetic resin such as PE, PP, or PET and heat embossing, a melt blown non-woven fabric, or the like may be used.

  The back sheet 3 is formed of, for example, a liquid-impervious (waterproof), more preferably a plastic film having air permeability and waterproofness, such as a film made of PE (polyethylene) resin. The backsheet 3 may be, for example, a cross-like film in which a non-woven fabric having the same color as the topsheet 2 (for example, white) is bonded to the outside.

The absorbent body 4 functions to absorb water-like components such as urine as a body fluid when in use, and is made of an absorbent material such as cotton and pulp, a sheet-like base material such as fiber or film, and a superabsorbent polymer. The absorbent core 41 formed by combining with such a high water-absorbent resin is covered with a liquid-permeable crepe paper 42.
The absorber 4 may have a structure divided into a plurality of layers as described above, or may have a single layer structure.

Moreover, the absorber 4 is arrange | positioned from the ventral | abdominal side part 11 to the back | dorsal side part 12 so that the longitudinal direction X may become substantially equal to the longitudinal direction X of the inner pad 1, for example.
Further, for example, the absorbent body 4 is formed so as to be recessed inward so that the crotch 13 side is narrower than the abdomen side 11 side and the back side part 12 side, corresponding to the shape of the inner pad 1. Yes.

  The three-dimensional gather 5 is formed, for example, by folding a pair of liquid-impermeable gather sheets 51, 51 disposed on the top sheet 2 side along the longitudinal direction X at predetermined positions. That is, the three-dimensional gather 5 rising from the surface of the top sheet 2 by folding a predetermined position on the free end side of each of the gather sheets 51 arranged so as to extend from the surface of the top sheet 2 in a predetermined direction. Each is formed.

  Note that, for example, a plurality of thread rubbers 52,... Are arranged substantially in parallel on the free end side of the gather sheet 51, so that the three-dimensional gather 5 is deformed to expand and contract in accordance with the wearer's body shape. As a result, it is easy to fit the wearer.

  The inner body fluid absorption display unit 61 indicates, for example, whether or not the body fluid by the inner pad 1 is absorbed, such as a water-soluble ink that develops or decolors with moisture, a hot-melt adhesive having discoloration, or the like. Can be applied.

  Moreover, the inner body fluid absorption display part 61 is provided along with the longitudinal direction X so that the boundary part B which overlaps with the edge part by the side of the width direction Y of the absorber 4 in the surface (one surface) of the top sheet 2, for example. ing. Specifically, in each of the crotch part 13, the back side part 12, and the abdomen side part 11, an inner body fluid absorption display part 61 having a predetermined length is provided on each of both edges on the width direction Y side of the absorbent body 4. Yes.

  The arrangement of the inner body fluid absorption display unit 61 is arbitrarily determined according to, for example, the amount and number of urinations, that is, considering the position where the body fluid that diffuses the absorber 4 reaches due to multiple urinations, etc. It is preferable to set to.

  The outer body fluid absorption display unit 62 indicates, for example, whether or not the body fluid is absorbed by the inner pad 1, and similarly to the inner body fluid absorption display unit 61, water-soluble ink that develops or decolors with moisture. Or a hot-melt adhesive having discoloration can be applied.

  Moreover, the outer body fluid absorption display part 62 is located in the longitudinal direction X so that it may correspond to each inner body fluid absorption display part 61 on the outer side from each boundary part B in the surface (human body side surface) of the gather sheet 51, for example. It is provided with a plurality. Specifically, in the dorsal side portion 12 and the ventral side portion 11, the outer body fluid absorption display portion 62 is separated from the inner body fluid absorption display portion 61 outside the compatible body gathers 5 and 5 in the width direction Y. Further, in the crotch part 13, an outer body fluid absorption display part 62 is provided so as to be spaced apart from the inner body fluid absorption display part 61 so as to sandwich each of the compatible body gathers 5.

As described above, according to the inner pad 1 of the first embodiment, the inner body fluid absorption display portion 61 is arranged in the longitudinal direction X at the boundary portion B that overlaps the edge portion on the width direction Y side of the absorber 4 on the surface of the top sheet 2. Since a plurality of the body fluids are provided side by side, the body fluid is discharged from the human body by the inner body fluid absorption display unit 61 and the body fluid is absorbed at the edge in the width direction Y side of the absorber 4, that is, the absorber. Therefore, the caregiver can be informed that there is a risk of leakage of body fluid from the end portion on the width direction Y side of 4, and determination of leakage of body fluid from the end portion on the width direction Y side of the absorbent body 4 is possible. Can be easily performed.
Furthermore, since the inner body fluid absorption display part 61 is provided along with the longitudinal direction X of the abdominal part 11 and the back side part 12, an absorber is changed according to the position of the inner body fluid absorption display part 61 which changes color in the longitudinal direction X. It is possible to appropriately inform the caregiver of how much body fluid can be absorbed by 4, that is, whether or not the inner pad 1 needs to be replaced. Thereby, the leakage of the bodily fluid from the inner pad 1 can be prevented beforehand by exchanging the inner pad 1 at an appropriate timing.

Moreover, since the some outside body fluid absorption display part 62 is provided in the outer side of the width direction Y rather than the boundary part B which overlaps the edge part of the width direction Y side of the absorber 4 in the surface of the top sheet 2, the said outside body fluid The caregiver can be notified appropriately that the body fluid has leaked from the end of the absorbent body 4 in the width direction Y side by the absorption display section 62.
At this time, the inner body fluid absorption display unit 61 and the outer body fluid absorption display unit 62 can appropriately determine whether body fluid has leaked from the inner pad 1 without removing the inner pad 1 from the diaper body. .

In the first embodiment, the outer body fluid absorption display unit 62 is provided. However, the present invention is not limited to this, and whether or not the outer body fluid absorption display unit 62 is provided can be changed as appropriate (FIG. 4). And FIG. 5 etc.).
Further, the shape and arrangement of the inner body fluid absorption display unit 61 and the shape of the inner pad 1 are not limited to those illustrated in the first embodiment, and can be changed as appropriate.
Below, the modifications 1-5 of the inner pad 1 are demonstrated with reference to FIGS. 3-7 suitably.

<Modification 1>
In the inner pad 1A of the first modification, for example, as shown in FIG. 3, the inner side of the back side portion 12 and the abdominal side portion 11 extends over both edges on the width direction Y side of the absorbent body 4. A body fluid absorption display portion 61A is provided.
That is, the inner body fluid absorption display portion 61A only needs to be provided side by side in the longitudinal direction X so as to be along each boundary portion B overlapping at least both edges on the width direction Y side of the absorber 4. As a result, not only there may be leakage of bodily fluid from the end of the absorbent body 4 in the width direction Y side, but there may also be leakage of bodily fluid from the end of the absorbent body 4 in the longitudinal direction X side. Therefore, the caregiver can be informed that the body fluid is leaked, and the body fluid leakage from the end of the absorber 4 can be easily determined.
Further, in the first modification, a plurality of inner body fluid absorption display portions 61 and a plurality of outer body fluid absorption display portions 62 are arranged in parallel in the longitudinal direction X so as to sandwich each end portion on the width direction Y side of the absorber 4. Furthermore, a plurality of inner body fluid absorption display portions 61 are arranged in the longitudinal direction X so as to sandwich each of the three-dimensional gathers 5. Thereby, determination of the leakage of the bodily fluid from the edge part of the width direction Y side of the absorber 4 and the leakage of the bodily fluid from the outer side of a three-dimensional gather can be performed more appropriately and easily.

<Modification 2>
In the inner pad 1B of Modification 2, for example, as shown in FIG. 4, the inner body fluid absorption display unit 61 is provided only on the back side portion 12 and the abdominal side portion 11, and the inner body fluid absorption display portion is provided. 61B represents the amount of body fluid absorbed by a predetermined numerical value. Specifically, for example, when the amount of urination once is 150 cc, an inner body fluid absorption display portion 61B corresponding to four urinations is provided in each of the back side portion 12 and the abdominal side portion 11. Thereby, the amount of urination can be easily measured without using a predetermined measuring device.
In addition, arrangement | positioning of the inner side body fluid absorption display part 61B can be suitably changed according to the amount of urination of one time.

<Modification 3>
In the inner pad 1C of the third modification, for example, as shown in FIG. 5, a predetermined mark (FIG. 5) is used instead of the inner body fluid absorption display portion 61C that represents the urine output numerically as in the second modification. In this case, an inner body fluid absorption display portion 61C that represents the degree of urination with a star mark) is provided.
As a result, for example, in a body shape that causes stiffness, muscle atrophy, etc., it may leak in a small amount regardless of the prescribed absorption amount setting, so it can be used to determine individual differences as to whether it is likely to leak it can.

<Modification 4>
In the inner pad 1D of Modification 4, for example, as shown in FIG. 6, an inner body fluid absorption display portion 61D is provided on the surface of the top sheet 2 on the absorber 4 side.
That is, the inner body fluid absorption display portion 61D may be provided on either the surface of the top sheet 2 on the human body side or the surface on the absorber 4 side.

<Modification 5>
In the inner pad 1E of the modified example 5, for example, as shown in FIG. 7, the back side portion 12, the abdominal side portion 11 and the crotch portion 13 have substantially the same width, and the inner pad 1E has the shape. Correspondingly, the width of the absorber 4E is also made substantially equal in the longitudinal direction X.
And in the abdominal side part 11 and the back side part 12, the inner side body fluid absorption display part 61E is provided so that both the edge parts of the width direction side of the absorber 4E may be provided, and both outer sides rather than the edge part of the absorber 4E The outer body fluid absorption display part 62E is provided in the inner body fluid absorption display part 61E and the outer body fluid absorption display part 62E.

[Embodiment 2]
Below, the inner pad 201 of Embodiment 2 is demonstrated with reference to FIG.8 and FIG.9.
Here, FIG. 8 is a plan view showing the inner pad 201 of the second embodiment to which the present invention is applied, and FIG. 9 is a cross-sectional view of the main part of the inner pad 201 taken along the line IX-IX in FIG.
The inner pad 201 of the second embodiment is substantially the same as the first embodiment except for the shape and arrangement of the first absorbent body 204A and the second absorbent body 204B and the laminated body liquid absorption display portion 261. Similar components are denoted by the same reference numerals, and description thereof is omitted.

  The inner pad 201 of the second embodiment includes, for example, as shown in FIGS. 8 and 9, a stacked first absorbent body 204A and second absorbent body 204B, and the longitudinal direction of the first absorbent body 204A. A laminated body fluid absorption display unit 261 is provided to indicate whether or not body fluid is absorbed in the boundary portion 2B where the X-side edge and the surface of the second absorber 204B overlap.

That is, the first absorbent body 204A and the second absorbent body 204B are formed, for example, in a substantially rectangular shape elongated in the longitudinal direction X so as to be arranged inside the three-dimensional gather 5, and the first absorbent body 204A. Is disposed on the top sheet 2 side, and the second absorbent body 204B is disposed on the back sheet 3 side.
The length in the longitudinal direction X of the first absorbent body 204A is shorter than the length in the longitudinal direction X of the second absorbent body 204B, and the first absorbent body 204A is located inside the second absorbent body 204B. It is laminated so that it may be arranged.

  The laminated body liquid absorption display unit 261 includes, for example, a boundary portion 2B where the edge on the longitudinal direction X side of the first absorbent body 204A and the surface of the second absorbent body 204B overlap with each other on the inner surface of the backsheet 3. In the part which overlaps with the edge part of the longitudinal direction X side of the 2nd absorber 204B, it arrange | positions so that the edge part of the width direction Y side of the 1st absorber 204A and the 2nd absorber 204B may be covered.

  As described above, according to the inner pad 201 of the second embodiment, the edge on the longitudinal direction X side of the first absorbent body 204A and the second absorption on the surface of the backsheet 3 on the second absorbent body 204B side. Since the laminated body liquid absorption display portion 261 overlaps with the surface of the body 204B and overlaps the edge portion on the width direction Y side substantially orthogonal to the longitudinal direction X of the first absorbent body 204A, The body fluid is discharged from the human body by the laminated body fluid absorption display unit 261, and the body fluid is absorbed at the edge of the first absorbent body 204A, particularly in the width direction Y side, that is, the width of the absorber 4. Body fluid may leak from the end on the direction Y side, and the caregiver can be informed that the inner pad 201 needs to be replaced, and the width direction Y side of the absorbent bodies 204A and 204B. From the end of The determination of the leakage of the liquid can be easily performed.

In the second embodiment, the laminated body liquid absorption display unit 261 is illustrated as being disposed so as to extend over the edge on the width direction Y side of the first absorber 204A and the second absorber 204B. However, the present invention is not limited to this, and it is sufficient that it is disposed at least in a portion overlapping with the edge portion on the width direction Y side of the absorber.
Moreover, although the thing with which two absorbers 204A and 204B were piled up was illustrated, it is not restricted to this, The number of the absorbers 4 piled up can be suitably changed according to the absorbed amount etc. of a bodily fluid. .

  Furthermore, in the said Embodiment 1 and 2, although illustrated, the inner pad 1 etc. which are attached to a diaper main body were illustrated as an absorbent article, it is not restricted to this, For example, the inner pad 1 is provided. It may be a disposable diaper that absorbs bodily fluids alone.

[Embodiment 3]
Below, the disposable diaper 300 of Embodiment 3 is demonstrated with reference to FIG.10 and FIG.11.
Here, FIG. 10 is a development view of the pant-type paper diaper 300 according to the third embodiment to which the present invention is applied, and FIG. 11 is a cross-sectional view of the main part of the paper diaper 300 taken along the line XI-XI in FIG.
The inner pad 301 provided in the disposable diaper 300 of the third embodiment is substantially the same as that of the first embodiment except for the main body side body fluid absorption display unit 361. Description is omitted.

  The disposable diaper 300 according to the third embodiment covers, for example, the crotch side of the human body from the abdomen side to the back side. Specifically, as shown in FIGS. 10 and 11, the inner pad 301 and the inner pad 301 include A diaper main body 302 to be attached is provided.

  For example, the inner pad 301 has substantially the same configuration as the inner pad 301 of the first embodiment except that the inner body fluid absorption display unit 61 and the outer body fluid absorption display unit 62 are not provided.

  The diaper main body 302 includes an abdomen side attachment part 311 to which the abdomen side part 11 of the inner pad 301 is attached, a back side part attachment part 312 to which the back side part 12 of the inner pad 301 is attached, and an abdomen side part attachment part 311. A crotch part disposing part 313 provided continuously with the back side part attaching part 312 in which the crotch part 13 of the inner pad 301 is disposed, a fastening part 314 for attaching the diaper main body 302 to the human body, and the like. ing.

The end portion on the longitudinal direction X side of the abdominal side portion attaching portion 311 and the end portion on the longitudinal direction X side of the back side portion attaching portion 312 form a waist portion 315 when the disposable diaper 300 is attached to the human body. It is supposed to be. Specifically, the waist portion 315 includes an abdominal extension 311A that extends outward from the crotch lower portion 313 of the abdomen attachment portion 311 and a crotch lower placement portion of the back side attachment portion 312. It is formed by a back-side extending portion 312 </ b> A that extends outward from 313.
For example, an elastic member such as rubber thread is provided along the width direction Y at a substantially central portion of the edge in the longitudinal direction X side of the back side mounting portion 312, and a planar gather 316 is formed by this elastic member, Stretchable so that it fits around the wearer's torso. The back extension 312A is provided with fastening portions 314 so as to protrude outward from the respective side edges.
Both edge portions formed so as to be recessed inside the crotch lower portion 313 constitute leg openings 317 that surround the wearer's legs when worn on the human body.

  The diaper main body 302 includes, for example, a main body-side top sheet 320 made of a liquid-permeable non-woven fabric provided on the contact surface side with the human body, a liquid-impervious main body-side back sheet 330 provided on the outer side when worn, The longitudinal direction X of the diaper main body 302 is disposed on both sides of the main body side absorber 340 interposed between the main body side top sheet 320 and the main body side back sheet 330 and the main body side absorber 340 on the main body side top sheet 320 side. A pair of main body side three-dimensional gathers 350, 350, etc. provided along the line.

  For example, the main body side absorber 340 has substantially the same configuration as that of the absorber 4 provided in the inner pad 301, and a description thereof is omitted.

For example, the main body side top sheet 320 and the main body side back sheet 330 have substantially the same configurations as the top sheet 2 and the back sheet 3 provided in the inner pad 301 except for the points described below.
That is, the edge of the inner pad 301 in the width direction Y side on the inner surface of the main body side top sheet 320 (surface on the main body side absorber 340 side) and the inner surface of the main body side back sheet 330 (surface on the main body side absorber 340 side). A plurality of main body side body fluid absorption display portions 361 are provided side by side in the longitudinal direction X at the boundary portion 3 </ b> B that overlaps. Specifically, the main body side body fluid absorption display unit 361 has an inner surface of the main body side top sheet 320 and an inner surface of the main body side back sheet 330 so as to straddle the edge of the inner pad 301 in the width direction Y side from the inner side to the outer side. Is provided.

  The main body side back sheet 330 is made of, for example, a light transmissive material so that the main body side body fluid absorption display unit 361 provided on the main body side back sheet 330 can be viewed from the outside. preferable. Accordingly, it is possible to appropriately determine the leakage of body fluid from the inner pad 301 without removing the paper diaper 300.

The main body side three-dimensional gather 350 is disposed on the main body side top sheet 320 side from the edge portion on the longitudinal direction X side of the abdominal side portion attachment portion 311 to the edge portion on the longitudinal direction X side of the back side portion attachment portion 312. A pair of liquid-impervious body-side gather sheets 351 and 351 are formed by being folded at predetermined positions.
That is, a predetermined position on the free end side of each of the main body side gather sheets 351 disposed so as to extend from the surface of the main body side top sheet 320 is folded in a predetermined direction, whereby the surface of the main body side top sheet 320 is returned. Each of the main body side three-dimensional gathers 350 rising from is formed.

Further, in the body-side gather sheet 351, for example, the length in the width direction Y of the abdomen side attachment portion 311 and the back side attachment portion 312 is longer than the length of the crotch portion arrangement portion 313 in the width direction Y. In other words, between the main body side gather sheet 351 and the main body side top sheet 320, the pocket portion 370 in which both edges in the width direction Y side of the abdomen side portion 11 and the back side portion 12 of the inner pad 301 are locked. Is formed.
Thereby, the inner pad 301 can be attached to the diaper main body 302.

  As described above, according to the disposable diaper 300 of the third embodiment, the main body is formed on the boundary portion 3B that overlaps the edge of the inner pad 301 in the width direction Y side on the inner surface of the main body side top sheet 320 and the inner surface of the main body side back sheet 330. Since the side body fluid absorption display unit 361 is provided, the body fluid discharged from the human body by the main body side body fluid absorption display unit 361 is not absorbed by the inner pad 301, and the end of the inner pad 301 on the width direction Y side It is possible to inform the caregiver that the inner pad 301 needs to be replaced due to leakage from the part, and it is easy to determine the leakage of body fluid from the end of the inner pad 301 on the width direction Y side. It can be carried out.

Further, since the main body side body fluid absorption display unit 361 is provided on the inner surface of the main body side top sheet 320 and the inner surface of the main body side back sheet 330, for example, the main body side body fluid absorption display provided on the inner surface of the main body side top sheet 320 is provided. When only the portion 361 is discolored, it is determined that the amount of body fluid leaked from the inner pad 301 is a small amount. On the other hand, both the inner surface of the main body side top sheet 320 and the inner surface of the main body side back sheet 330 are determined. When the main body side body fluid absorption display unit 361 is discolored, it can be determined that a large amount of body fluid is leaking from the inner pad 301.
Thus, by providing the main body side body fluid absorption display part 361 on both the inner surface of the main body side top sheet 320 and the inner surface of the main body side back sheet 330, the amount of body fluid leaking from the inner pad 301 is more appropriately determined. be able to.

  In the third embodiment, the main body side body fluid absorption display unit 361 is provided on both the absorber 4 side surface of the main body side top sheet 320 and the absorber 4 side surface of the main body side backsheet 330. However, the present invention is not limited to this, and it may be provided on at least one of these two surfaces.

  Moreover, the main body side body fluid absorption display unit 361 may be made of, for example, a material that changes color due to the body fluid by using the paper diaper 300 and returns to the color state before use by, for example, drying. Thereby, even if it is the diaper main body 302 reused after replacement | exchange of the inner pad 301, the judgment of the leakage of the bodily fluid from the inner pad 301 can be performed appropriately.

Furthermore, in the said Embodiment 3, although the paper diaper 300 of the structure by which the inner pad 301 is arrange | positioned inside the main body side absorber 340 was illustrated, it is not restricted to this, The main body side absorber 340 is concerned with the said main body. A configuration in which inner pads 301 formed to have substantially the same size as the side absorber 340 are stacked may be used.
In the third embodiment, the inner pad 301 or the like may be applied as a configuration in which the inner pad 301 having a substantially rectangular outer shape as shown in FIG. 7 can be attached.
Furthermore, in the said Embodiment 3, the inner pad 301 is locked by engaging both the edge parts of the width direction Y side of each of the abdominal side part 11 and the back side part 12 of the inner pad 301 to the pocket part 370 of the diaper main body 302. Although it was set as the structure attached to the diaper main body 302, it is not restricted to this, For example, adhesive members (not shown), such as a tape, are affixed on the surface at the side of the diaper main body 302 of the inner pad 301, and the said adhesive member Thus, the inner pad 301 may be attached to the diaper main body 302.

Note that the present invention is not limited to the first to third embodiments, and various improvements and design changes may be made without departing from the spirit of the present invention.
For example, in the inner pad 1 or the like according to the first to third embodiments, hot melt or the like that changes color due to moisture or the like is disposed on the surface of the top sheet 2 on the absorbent body 4 side, so that the stuffiness of the inner pad 1 can be determined. You may be able to do it.

It is a top view which shows the inner pad of Embodiment 1 illustrated as an absorbent article to which this invention is applied. It is principal part sectional drawing of the inner pad in the II-II line | wire of FIG. FIG. 10 is a plan view showing an inner pad of Modification 1; FIG. 10 is a plan view showing an inner pad of Modification 2. FIG. 12 is a plan view showing an inner pad of modification example 3. FIG. 10 is a main part sectional view showing an inner pad of Modification 4; FIG. 10 is a plan view showing an inner pad of Modification 5. It is a top view which shows the inner pad of Embodiment 2 illustrated as an absorbent article to which this invention is applied. It is principal part sectional drawing of the inner pad in the IX-IX line of FIG. It is an expanded view of the underpants type paper diaper of Embodiment 3 to which this invention is applied. It is principal part sectional drawing of the paper diaper in the XI-XI line of FIG.

Explanation of symbols

1, 1A, 1B, 1C, 1D, 1E, 201, 301 Inner pad (absorbent article)
2 Top sheet 3 Back sheet 4, 4E Absorbers 61, 61A, 61B, 61C, 61D, 61E Inner body fluid absorption display section 62, 62E Outer body fluid absorption display section 204A First absorber 204B Second absorber 261 Laminated body fluid Absorption display part 300 Paper diaper 302 Diaper main body 320 Main body side top sheet 330 Main body side back sheet 340 Main body side absorber 361 Main body side body fluid absorption display part X Longitudinal direction Y Width direction

Claims (4)

An absorbent article comprising a liquid-permeable top sheet, a liquid-impermeable back sheet, and an absorber disposed between the top sheet and the back sheet,
The absorbent body is formed in an elongated shape in a direction substantially equal to the direction extending from the back side to the abdomen through the crotch,
One of the top sheet and the absorber side surface of the back sheet has a body fluid at a boundary portion that overlaps an edge portion on the width direction substantially orthogonal to the longitudinal direction of the absorber on at least one of the surfaces. An absorbent article, wherein a plurality of inner body fluid absorption display portions indicating whether or not they are absorbed are provided side by side in the longitudinal direction.   The outer body fluid absorption display part which shows whether the body fluid is absorbed is provided in the outer side of the said width direction rather than the said boundary part in the surface at the side of the human body of the said absorbent article. Absorbent article as described in 1. An absorbent article comprising a liquid-permeable top sheet, a liquid-impervious back sheet, and a plurality of absorbent bodies arranged to overlap between the top sheet and the back sheet,
Among the plurality of absorbent bodies, the first absorbent body disposed on the top sheet side and the second absorbent body disposed on the back sheet side of the first absorbent body pass through the crotch from the back side. The length of the first absorbent body in the longitudinal direction is shorter than the length in the longitudinal direction of the second absorbent body;
The longitudinal side edge of the first absorbent body and the surface of the second absorbent body overlap each other on the absorbent body side surface of the backsheet, and the longitudinal direction of the first absorbent body An absorbent article characterized in that a laminated body fluid absorption display portion indicating whether or not body fluid is absorbed is provided at a boundary portion that overlaps an edge portion on a width direction substantially orthogonal to the body. A paper diaper comprising an inner pad, a liquid-permeable top sheet to which the inner pad is attached, a liquid-impervious back sheet, and an absorber disposed between the top sheet and the back sheet. ,
The inner pad is formed in an elongated shape in a direction substantially equal to the direction extending from the back side to the belly side through the crotch,
A boundary portion overlapping at least one of the surface on the absorber side of the top sheet and the surface on the absorber side of the back sheet and the edge on the width direction substantially orthogonal to the longitudinal direction of the inner pad. Further, a paper diaper characterized in that a body-side body fluid absorption display portion that indicates whether or not body fluid is absorbed is provided.

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