JP5394686B2 - Body fluid treatment article and wearing article including the same - Google Patents

Description

  The present invention relates to a body fluid treatment article and a wearing article including the same, and more particularly to a disposable diaper having a body fluid treatment article, excretion training pants, an incontinence brief, and the like.

Conventionally, for example, Japanese Patent Application Laid-Open No. 2005-323797 (Patent Document 1) discloses that an opening is formed in a bag-shaped absorbent article and urine is excreted toward the opening. A guide sheet for dispersing urine is formed between the opening and the bottom of the bag-shaped absorbent article, and the urine is absorbed by covering the side edge of the guide sheet with the absorbent. A skin contact sheet is formed between the guide sheet and the opening to prevent the excreted urine from contacting the wearer.
JP 2005-323797 A

  For example, when body pressure acts on the urine absorbed in the absorbent article, the urine exudes from the absorber. When the urine oozes from the absorbent body and the wearer rolls over or crawls, the urine may move inside the bag-shaped absorbent article and leak from the opening.

  An object of the present invention is to provide a bodily fluid treatment article and a wearing article including the bodily fluid treatment article in which bodily fluid does not leak even when body pressure acts or the body posture changes.

This invention includes the first invention and the second invention.
The first invention includes a longitudinal direction extending rearward from the front of the body, a lateral direction perpendicular to the longitudinal direction, a liquid-impervious inner surface sheet located on the body side, and a liquid-impervious outer surface located on the opposite side. A bag body is formed by the inner and outer surface sheets, and an opening is formed in the inner surface sheet to allow a body fluid to flow into the bag body, and the inner and outer surface sheets are separated from each other to form the inner and outer surface sheets. The present invention relates to improvement of a body fluid treatment product in which a body fluid storage area is formed between outer surface sheets.

According to the first aspect of the present invention, in the humor treatment article, a joining portion that substantially joins the inner and outer surface sheets is formed between the opening edge of the opening and the peripheral edge of the bag body. A first passage that allows the opening and the storage region to pass through is formed, and the storage region is between the first passage and a peripheral edge of the bag body, and in the longitudinal direction of the opening. It includes a front storage area and a rear storage area formed in the front and rear, and the front storage area and the rear storage area each have a front liquid absorption structure and a rear liquid absorption structure capable of absorbing and holding body fluid, respectively. It is provided .
In the joining portion, substantially joining the inner and outer surface sheets means not only the case where the inner and outer surface sheets are directly joined, but also the case where these inner and outer surface sheets are joined via other members such as sheets. To do.

As one preferred embodiment, the peripheral edge of the bag body includes both side edges extending in the longitudinal direction and front and rear end edges extending in the lateral direction, and between the joint portion and at least the front and rear end edges. A first non-joining region in which the inner and outer sheets are not substantially joined to each other is formed, and the front housing region and the rear housing region are formed by the first non-joining region.

  As another preferred embodiment, a plurality of the joint portions are formed, and the first passage is formed at least between the two joint portions adjacent in the lateral direction.

As one preferred embodiment, a second passage is formed on the laterally outer side of the first passage between the joint portion and at least one of the side edges, and the second passage is the front passage. The accommodation area communicates with the rear accommodation area, and the lateral dimension of the second passage is larger than the lateral dimension of the first passage.

As one preferred embodiment, the bag includes a transverse center line bisecting a dimension of the longitudinal direction, the first contact and the second passage, when cut by a line parallel to said transverse center line , they cut surface has at least an annular shape the inner and outer sheets and the said junction, than the length of the circumference forming the annular first passage, to form a pre-Symbol second passage The circumference has a longer dimensional relationship.

  As another preferred embodiment, a plurality of the first passages are formed in the lateral direction, and the first and second passages have true cut surfaces when cut along a line parallel to the lateral center line. When a circle is formed, the total area of the cut surfaces of the second passage is larger than the total area of the cut surfaces of the first passage.

  As another preferred embodiment, the joining portion is formed by at least a joining line of filaments.

As another preferred embodiment, a separation dimension of the joining line forming the first passage decreases from the opening toward the accommodation region.
As another preferred embodiment, the first passage includes a first front passage located between the opening and the front accommodation region, and a rear first passage located between the opening and the rear accommodation region. A passage and a first side passage located between the opening and the side edges.

  As another preferred embodiment, a second non-bonded region in which the inner and outer surface sheets are not substantially bonded to each other is formed between the opening and the bonding portion.

The second invention includes a chassis having a vertical direction and a horizontal direction, a body side and the opposite side, and a front waist region, a rear waist region, and a crotch region located between the front and rear waist regions that are continuous in the vertical direction. Involved in improvement of worn articles.
This second invention includes the body fluid treatment article according to the first invention located at least in the crotch area in the wearing article, wherein the opening of the body fluid treatment article is located in the crotch area. And

As one preferred embodiment, the bodily fluid treatment article is mounted on the opposite side of the chassis from the body side, and the chassis allows the bodily fluid to flow into the opening of the bodily fluid treatment article at least in the crotch region. It is made possible.

  As another preferred embodiment, the chassis has a hole formed in the crotch region, through which the body fluid can flow into the opening of the body fluid treatment article, the hole and the opening. And overlap.

  The body fluid treatment product bag according to the first aspect of the present invention includes a joining portion that joins the inner and outer surface sheets to each other, and allows the opening formed in the inner surface sheet and the accommodating region to pass between the joining portions. Since the passage is formed, the bodily fluid flowing in from the opening of the bag body is accommodated in the accommodation region via the first passage. By forming the first passage, the bodily fluid flowing from the opening can be diffused into the accommodation region. Since the body fluid diffuses in the accommodation region, it is possible to suppress the back flow of the body fluid to the opening, and it is possible to suppress the leakage of the body fluid or the like from the opening.

  In the wearing article of the second invention, since the body fluid treatment article is positioned at least in the crotch region and the opening of the bag body is positioned in the crotch region, for example, when a wearing article such as a diaper is used, urine Can be held in a bag body fluid treatment article. Therefore, leakage of urine and the like from the worn article can be suppressed.

  An example of the present invention will be described using a disposable diaper as a wearing article.

  FIG. 1 shows a state in which the diaper 1 is worn, and FIG. 2 is a plan view of the diaper 1 when the joining of both side edges in FIG. 1 is released. ing. FIG. 2 shows a state where the elastic force of each elastic body is not acting so that the diaper 1 is flat. 3 is a cross-sectional view taken along line III-III in FIG. 2, and FIG. 4 is a cross-sectional view taken along line IV-IV in FIG. The diaper 1 includes a chassis 2, a waist elastic body 3, and a leg elastic body 4. The chassis 2 includes a front waist region 5, a rear waist region 6, and a crotch region 7 positioned between the front and rear waist regions 5 and 6, and a vertical center line that bisects the dimension in the lateral direction X. P-P and a horizontal center line Q-Q that bisects the dimension in the vertical direction Y.

  The chassis 2 includes a liner 8 forming a body-side inner surface and an outer 9 forming an opposite outer surface thereof, and a waist elastic body 3 and a leg elastic body 4 are interposed between the liner 8 and the outer 9. Yes. The waist elastic body 3 and the leg elastic body 4 are joined to at least one of the liner 8 and the outer 9. The chassis 2 includes a front waist side edge 10 that extends in the longitudinal direction Y and is located in the front waist region 5, a rear waist side edge 11 that is located in the rear waist region 6, and a leg side edge 12 that is located in the crotch region 7. Including.

  The chassis 2 includes chassis front and rear end edges 13 and 14 extending in the horizontal direction X orthogonal to the vertical direction Y. The leg side edge 12 is curved toward the longitudinal center line PP in the crotch region 7, and the leg elastic body 4 is attached along the leg side edge 12 so as to be contracted in an extended state. The waist elastic body 3 is attached along the front and rear end edges 13 and 14 of the chassis so as to be contractible in an extended state in the lateral direction X. The front waist side edge 10 and the rear waist side edge 11 are joined to each other, and the front and rear waist regions 5 and 6 are connected to form the pant-type diaper 1.

A body fluid treatment article 15 is attached to the outside of the outer 9. The body fluid treatment article 15 is located at least in the crotch region 7 and extends in the longitudinal direction Y from the crotch region 7 toward the front and rear waist regions 5 and 6.
In the crotch region 7 of the liner 8 and the outer 9, a hole 16 penetrating the liner 8 and the outer 9 is formed. The body fluid treatment article 15 is exposed through the hole 16. The hole 16 is formed at a position corresponding to the wearer's external genitalia on the front waist region 5 side of the lateral center line Q-Q. Therefore, the external genitalia faces the body fluid treatment article 15 through the hole 16.

  FIG. 5 shows the bodily fluid treatment article 15, and a part thereof is broken for explanation. As shown in the drawing, the body fluid treatment article 15 includes a rectangular inner surface sheet 18 and an outer surface sheet 19 that are substantially the same size, and both side edges 20 and 21 that extend in the longitudinal direction Y of the inner and outer surface sheets 18 and 19 and a lateral surface. The front and rear end edges 22 and 23 extending in the direction X are connected to each other. That is, the bag body 24 is formed by the inner and outer surface sheets 18 and 19 by being bonded to each other over the outer peripheries of the inner and outer surface sheets 18 and 19. The inner and outer surface sheets 18 and 19 are made impermeable to liquid as a whole by using an impermeable film. An opening 25 is formed in the inner surface sheet 18. In the bag body 24, front and rear storage areas 26 and 27 that can store body fluids and the like are respectively formed before and after the longitudinal direction Y of the opening 25, and both side edges 20 and 21 and front and rear end edges 22 and 23 are connected to the bag body. 24 peripheral edges.

  The inner sheet 18 of the body fluid treatment article 15 as described above is located on the body side and is joined to the outer 9 of the chassis 2. The opening 25 of the body fluid treatment article 15 is attached so as to coincide with the hole 16 formed in the liner 8 and the outer 9, and the opening edge of the opening 25 is joined to the outer 9 via the first bonding means 49. (See FIGS. 1 and 2). The first bonding means 49 is formed along the opening edge so as to surround the opening 25, so that the opening 25 and the hole 16 are not separated from each other. Therefore, the external genitalia that faces the hole 16 faces the opening 25 of the body fluid treatment product 15, and the excreted urine is accommodated in the bag body 24 through the opening 25. The hole 16 and the opening 25 are formed to a size that can accommodate the external genitalia.

  Between the inner / outer surface sheets 18 and 19, a joining portion 28 is formed to join them. The joint portion 28 is formed on the outer peripheral side so as not to overlap the first bonding means 49, has a filament, and is formed in a plurality between the opening edge of the opening 25 and the peripheral edge of the bag body 24. Yes. The joining portion 28 includes a first joining line 29 and a second joining line 30 that are inclined with respect to the longitudinal center line PP, and a third joining line 31 that extends substantially parallel to the longitudinal center line PP. The first joint line 29 is inclined downward to the right in the figure, the second joint line 30 is inclined upward in the figure, and the first joint line 29 and the second joint line 30 are alternately arranged in the lateral direction X. Yes.

  The first joining line 29, the second joining line 30 and the third joining line 31 form an interval without contacting the side edges 20, 21 and the front and rear end edges 22, 23, respectively. That is, a first non-joining region in which these joining lines are not formed is formed between the first to third joining lines 29 to 31 and the front and rear end edges 22 and 23, and the front and rear accommodation regions are formed by these first non-joining regions. 26 and 27 are formed. On the front housing region 26 side, the first joint line 29 and the second joint line 30, the first joint line 29 and the third joint line 31, and the second joint line 30 and the third joint line 31 are formed in front of the opening 25. A funnel-shaped front first passage 33 having a smaller separation dimension toward the accommodation region 26 is formed at each one location. On the rear housing area 27 side, three funnel-shaped rear first passages 34 are formed by the first joint line 29 and the second joint line 30 so that the distance between the opening 25 and the rear housing area 27 decreases.

  Between the opening 25 and both side edges 20 and 21, third joint lines 31 are intermittently arranged in the vertical direction Y, and between these third joint lines 31, the first joint line is on the side edge 20 side. 29 is formed, and the second bonding line 30 is formed on the side edge 21 side. A lateral first passage 35 is formed between the first joint line 29 and the third joint line 31 and between the second joint line 30 and the third joint line 31.

  Between the opening 25 and the 1st-3rd joining lines 29-31, the 2nd non-joining area | region 36 in which the junction part 28 is not formed is formed. That is, at the opening edge of the opening 25, the inner and outer surface sheets 18 and 19 only overlap and are not joined. The second non-bonding region 36 is formed so as to overlap the first bonding means 49. On the outside of the front and rear first passages 33 and 34 in the lateral direction X, a second passage 38 communicating with the front and rear accommodation regions 26 and 27 is formed. The second dimension in the lateral direction X of the second passage 38 is larger than the first dimension in the lateral direction X of the front and rear first passages 33 and 34. The second passage 38 is formed by the front-rear first passages 33, 34 and the side edges 20, 21 located on the outermost side in the lateral direction X. In this embodiment, since the dimension from both side edges 20, 21 to the front first passage 33 is different from the dimension from both side edges 20, 21 to the rear first passage 34, the second of the second passage 38 is front and rear. In any case, the dimensions are different, but in any case, the dimensions are larger than the first dimensions of the front and rear first passages 33 and 34.

Front and rear liquid absorbing structures 40 and 41 are provided in the front and rear storage areas 26 and 27, respectively. The front and rear liquid-absorbing structures 40 and 41 are formed by covering a liquid-absorbent core material formed of a superabsorbent resin, fluff pulp, or the like with a liquid diffusion sheet such as tissue paper. And joined to the outer sheet 19. The area of the rear liquid absorption structure 41 is larger than that of the front liquid absorption structure 40. In the wearing state of the diaper 1, the front storage area 26 is located on the stomach side of the wearer and the rear storage area 27 is located on the crotch and back side of the wearer, so that the excreted urine is in the standing state of the wearer. It moves toward the rear housing area 27. Therefore, the rear liquid absorption structure 41 is enlarged to improve its absorption capacity.

In the above configuration, when urine is excreted toward the opening 25, the inner and outer surface sheets 18 and 19 are separated from each other by the water pressure of the urine, and the urine is temporarily held in the second non-joining region 36. In the standing position of the wearer, urine tends to flow from the second non-joining region 36 toward the crotch side, so that the temporarily retained urine flows mainly toward the rear first passage 34. Since the rear first passage 34 is formed in a funnel shape by the first and second joining lines 29 and 30, urine in the second non-joining region 36 is collected in the rear first passage 34 and passes therethrough. When urine passes through the first rear passage 34, the inner and outer surface sheets 18 and 19 are separated from each other to form a cylindrical passage. The urine that has passed through the first rear passage 34 is guided to the rear housing region 27. Since the rear liquid absorption structure 41 is provided in the rear storage area 27, urine is absorbed and held in the rear liquid absorption structure 41.

6A is a cross-sectional view taken along line VI-VI in FIG. 5 and a part thereof is omitted. FIG. 6B is a schematic view when the inner and outer surface sheets 18 and 19 are separated from each other. As shown in the figure, a second passage 38 having a second dimension larger than the first dimension of the rear first passage 34 in the lateral direction X is formed outside the rear first passage 34 in the lateral direction X.
Further, an annular circumference C1 is formed by the rear first passage 34, and an annular circumference C2 is formed by the second passage 38.

  The length of the circumference C1 of the rear first passage 34 is such that the thickness dimensions of the first and second joining lines 29, 30 and the inner and outer surface sheets 18, 19 from the first joining line 29 to the second joining line 30 are as follows. The length of the circumference C2 of the second passage 38 is the sum of the length dimension in the lateral direction X, the thickness dimension of the first or second joint line 29, 30, and the first or second joint line 29. , 30 to the side edges 20, 21 are the sum of the lengths in the lateral direction X of the inner and outer surface sheets 18, 19. The length dimension of the inner and outer surface sheets 18 and 19 that is the second dimension of the second passage 38 is larger than the length dimension of the inner and outer surface sheets 18 and 19 that are the first dimension of the rear first passage 34 in the lateral direction X. By doing so, the length of the circumference C2 forming the second passage 38 can be made longer than the length of the circumference C1 forming the rear first passage 34.

  FIG. 6B shows a case where the inner and outer surface sheets 18 and 19 are separated from each other and the rear first passage 34 and the second passage 38 form a perfect circle. If the rear first passage 34 and the second passage 38 form a perfect circle, the two second passages 38 are more than the total area of the circumference C1 of the three rear first passages 34. The total area of the circumference C2 is made larger.

  In the diaper 1 as described above, the front and rear first passages 33 and 34 are formed so as to allow liquid to pass through the front and rear accommodation regions 26 and 27. That is, the urine flowing in from the opening 25 is passed through the front and rear first passages 33 and 34 to the front and rear accommodation regions 26 and 27, but after passing through the front and rear first passages 33 and 34, the urine has an area. It is diffused in the wide front and rear receiving areas 26 and 27. When urine is diffused, it becomes difficult for the urine to flow into the front and rear first passages 33 and 34, and this urine is prevented from flowing back to the opening 25, and as a result, urine leakage from the diaper 1 can be suppressed. .

  In addition, the front and rear ends of the second passage 38 face the front and rear accommodation areas 26 and 27, and the dimensional relationship between the rear first passage 34 and the second passage 38 is as described above, so that the liquid absorption structure can absorb it. Even when urine that has not been moved moves from the rear receiving area 27 to the front receiving area 26, the urine is preferentially guided to the second passage 38. That is, when lying down or lying on all fours from the standing position, urine may move from the rear storage area 27 to the front storage area 26. It moves only through the front and rear accommodation areas 26 and 27 via the first passage, and hardly flows into the first passage. Therefore, urine can be prevented from leaking from the opening via the first passage.

Similarly, even when urine moves from the front storage area 26 to the rear storage area 27, the urine can be prevented from leaking from the opening 25 by the front first passage 33.
Further, since the front liquid absorption structure 36 is provided in the front storage area 26, when the urine moves back and forth, the urine that could not be absorbed by the rear liquid absorption structure 37 is removed. Since it is absorbed by 36 and is held by the front storage area 26, it is possible to further suppress leakage of urine from the opening 25.

  After the urine passes from the opening 25 to the rear receiving area 27, the rear first passage 34 is overlapped with the inner and outer surface sheets 18 and 19 again to close the tubular passage, Lose functionality. Therefore, urine that moves back and forth is less likely to pass through the first rear passage 34, and urine can be prevented from flowing back to the opening 25 through the first rear passage 34.

  Since the front and rear first passages 33 and 34 are formed by the inclined first and second joint lines 29 and 30, the joint portion 28 can be shaped like a funnel and is excreted in the opening 25. The collected urine can be collected and guided to the front and rear accommodation areas 26 and 27. Therefore, even when the front and rear first passages 33 and 34 are narrow, a large amount of urine can be guided to the front and rear storage areas 26 and 27. Further, if the front and rear first passages 33 and 34 can be narrowed, the difference in the flow path area with the second passage 35 becomes large, so that urine moves between the front and rear accommodation regions 26 and 27. Even if it exists, since urine is preferentially guided to the 2nd channel | path 38 by that much, it can suppress that urine passes the front back 1st channel | paths 33 and 34. FIG. Therefore, leakage of urine from the opening 25 via the front and rear first passages 33 and 34 can be further suppressed.

  By forming the front and rear first passages 33 and 34 like a funnel, urine can be collected when heading from the opening 25 to the front and rear accommodation areas 26 and 27, while the front and rear accommodation areas 26 and 27. When going to the opening 25 from the urine, urine is dispersed. Therefore, urine that tends to flow into the front and rear first passages 33 and 34 can be reduced, and leakage from the opening 25 can be further suppressed.

  In this embodiment, since urine can be stored in the body fluid treatment article 15 in the diaper 1 as a wearing article, it does not leak out of the storage bag as long as there is no leakage from the opening. That is, since urine is absorbed and held by the body fluid treatment product 15 that is separate from the worn article, urine leakage from the diaper 1 that is the worn article can be remarkably suppressed. Moreover, since urine is received in such a bag, even if a large amount of urine is excreted, this urine can be held in the bag, and there is no need to change the diaper frequently, so that the diaper 1 can be used for a longer time. Can be worn.

The inner and outer sheets 18 and 19 of the body fluid treatment article 15 can use a liquid-impermeable film or the like, and the liner 8 and the outer 9 of the chassis 2 can use a liquid-permeable fiber nonwoven fabric or the like. Each sheet may be formed of a single non-woven fabric or film, or may be formed by superposing two or more sheets.
Although only one opening 25 is formed in the body fluid treatment article 15, for example, an opening may be formed in the rear housing region 27 separately from the opening 25. In this case, an opening formed separately for stool can be used. The joining portion 28 is formed by a straight joining line, but may be a curved line. Moreover, it does not necessarily have to be a line, and may be, for example, a dot shape or a combination thereof. Anyway, what is necessary is just to form the 1st channel | path smaller than a 2nd channel | path. Further, when the number of the joint portions 28 increases, the interval between them becomes narrow and the width of the first passage becomes narrow, so that the inflow of body fluid into the first passage can be further suppressed. The joint 28 is formed by a conventional technique such as adhesive, thermal or ultrasonic bond. Although the pull-on / pants type is shown as the diaper 1, an open type that connects the front and back waist regions when worn may be used.

The joint portion 28 is formed by directly joining the inner and outer surface sheets 18 and 19, but the inner and outer surface sheets 18 and 19 may be joined via members such as other sheets. In the case of joining via other members, the distance between the inner and outer surface sheets 18 and 19 can be increased, so that the circumferential length in the cross section of the first and second passages can be increased.
The side edges 20 and 21 and the front and rear end edges 22 and 23 of the inner and outer surface sheets 18 and 19 are joined to form the peripheral edge of the bag body 24, but if the part to be joined is outside the joined part 28, The present invention is not limited to the side edges 20 and 21 and the front and rear edges 22 and 23. That is, the inner and outer surface sheets 18 and 19 can be joined between the joining portion 28 and the side edges 20 and 21 and the front and rear end edges 22 and 23 to form a peripheral edge.

7 to 10 show a body fluid treatment article 15 according to another embodiment of the present invention. In these embodiments, the joint portion 28 is different from that of the first embodiment, and other portions are the same as those of the previous embodiment, and thus detailed description of the components is omitted.
FIG. 7 shows a longitudinal center line including a plurality of joining lines 43 forming the front first passage 33, a plurality of joining lines 44 forming the rear first passage 34, and a plurality of joining lines 45 forming the second passage 38. It is formed by a line substantially parallel to PP. The joining lines 43 are arranged at almost equal intervals in the horizontal direction X, and the dimensions in the vertical direction Y are equal. The joining lines 44 are arranged at almost equal intervals in the lateral direction X, and the dimension in the longitudinal direction Y is longer than the joining line 43 and becomes longer toward the longitudinal center line PP. The joining line 45 has a dimension larger than the dimension of the opening 25 in the longitudinal direction Y, and the joining line 45 and the side edges 20 and 21 form the second passage 38. The second dimension in the lateral direction X of the second passage 38 is larger than the first dimension of the front and rear first passages 33 and 34.

  The joining line 44 forming the rear first passage 34 has a length in the longitudinal direction Y that increases toward the longitudinal center line PP, but if the length of the joining line 44 is increased, The flow resistance in the passage formed by these increases. Urine preferentially flows through the second passage 38 having a small resistance, that is, having a large dimension in the lateral direction X, and hardly flows into the rear first passage 34 having a large resistance. In this embodiment, the resistance of the second passage 38 is the smallest, followed by the front first passage 33 and the rear first passage 34. Further, in the first rear passage 34, the resistance increases from the outer side in the lateral direction X toward the vertical center line PP. Therefore, when urine flows from the front and rear housing areas 26 and 27 toward the front and rear, it can flow preferentially to the second passage 38 and hardly flow to the front and rear first passages 33 and 34.

  In this embodiment, the first lateral passage is not formed, and the joining line 45 covers the lateral direction X of the opening 25. Therefore, even when urine moves in the lateral direction X, It is possible to suppress urine from leaking from the opening 25. In the joining line 44, the length is increased toward the longitudinal center line PP, but it is not always necessary to change the length, and the joining lines 44 are substantially equal in length. Also good. Moreover, the joining lines 43 and 44 may have the same length. However, by extending the joining line 44 toward the longitudinal center line PP, it becomes difficult for urine to flow as it approaches the longitudinal center line PP, and the urine flows into the opening 25 formed on the longitudinal center line PP. It becomes difficult to backflow.

  In the embodiment shown in FIG. 8, the first joining line 29 located on the front housing area 26 side and the second joining line 30 form the first front passage 33, and the first joining line located on the rear housing area 27 side. A rear first passage 34 is formed by 29 and the second joining line 30. A third joint line 31 is formed between the front and rear first and second joint lines 29 and 30 to connect them in the longitudinal direction Y. In this embodiment, the second passage 38 is formed outside the front and rear first passages 33 and 34 in the lateral direction X. That is, the second passage 38 is formed between the front first passage 33 and the side edges 20 and 21 and between the rear first passage 34 and the side edges 20 and 21.

  By forming the third joint line 31, the lateral first passage is not formed in the lateral direction X of the opening 25, so even if urine flows in the lateral direction X, the opening 25 It is possible to suppress urine leakage. However, the third bonding line 31 is not necessarily formed and can be appropriately selected.

  In the embodiment shown in FIG. 9, the first front passage 33 is formed by the first and second joining lines 29, 30 located on the front accommodation area 26 side of the body fluid treatment article 15, and located on the rear accommodation area 27 side. A rear first passage 34 is formed by the first and second joint lines 29, 30 and the third joint line 31 extending in the longitudinal direction Y from the first and second joint lines 29, 30 toward the rear housing region 27. ing.

A second passage 38 is formed between the third joining line 31 forming the rear first passage 34 and the side edges 20, 21.
By forming the rear first passage 34 by the third joint line 31 extending in the longitudinal direction Y, the passage through which urine flows can be lengthened, and the resistance of the flow of the rear first passage 34 can be increased. Therefore, it is possible to make it difficult for urine to flow to the rear first passage 34.

In the embodiment shown in FIG. 10, the front first passage 33 is formed by the first and second joining lines 29, 30 on the front housing region 26 side of the body fluid treatment article 15, and the first and second on the rear housing region 27 side. The rear first passage 34 is formed by the two joint lines 29 and 30 and the first and second joint lines 46 and 47 located in the rear housing region 27. A second passage 38 is formed between the first and second joining lines 29 and 30 and both side edges 20 and 21. The first and second joining lines 46 and 47 are formed on the rear housing region 27 side in the longitudinal direction Y, being separated from the first joining lines 29 and 30. By forming the first and second joining lines in this manner, the funnel is doubled so that the urine from the rear receiving area 27 can be further dispersed and the urine to return to the opening 25 is reduced. be able to.
The first and second joining lines 46 and 47 are formed as a pair on the rear housing region 27 side, but a plurality of the pair of first and second joining lines may be arranged in the longitudinal direction Y. However, it may be arranged in the horizontal direction X. In any case, the urine that tends to return to the opening 25 can be reduced as the joining line increases.

A perspective view of a diaper. The expansion | deployment top view of a diaper. III-III sectional view taken on the line of FIG. IV-IV sectional view taken on the line of FIG. The top view of a bodily fluid treatment article. (A) VI-VI sectional view taken on the line of FIG. (B) Schematic diagram similar to (a). The top view of other embodiment. The top view of other embodiment. The top view of other embodiment. The top view of other embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Diaper 2 Chassis 5 Front waist area 6 Rear waist area 7 Crotch area 15 Body fluid processing article 16 Hole 18 Inner surface sheet 19 Outer surface sheet 20 Side edge 21 Side edge 24 Bag body 25 Opening 26 Front accommodation area (1st non-joining area)
27 Rear accommodation area (first non-joining area)
28 Junction 33 Front 1st passage 34 Back 1st passage 36 2nd non-joining field 38 2nd passage 40 Front liquid absorption structure 41 Rear liquid absorption structure

Claims (13)

A longitudinal direction extending rearward from the front of the body and a lateral direction perpendicular to the longitudinal direction, a liquid-impermeable inner sheet positioned on the body side, and a liquid-impermeable outer sheet positioned on the opposite side, A bag body is formed by the outer sheet, the inner sheet is formed with an opening that allows inflow of body fluid into the bag body, and the inner and outer sheet are separated from each other by separating the body fluid between the inner and outer sheet. In the body fluid treatment article in which the accommodation area is formed,
Between the opening edge of the opening and the peripheral edge of the bag body, a joining portion that substantially joins the inner and outer sheet is formed, and the joining portion allows the opening and the accommodation region to pass through. A first passage is formed,
The storage area includes a front storage area and a rear storage area formed between the first passage and the periphery of the bag body, and formed before and after the opening in the longitudinal direction,
The body fluid treatment article, wherein a front liquid absorption structure and a rear liquid absorption structure capable of absorbing and holding body fluid are provided in the front storage area and the rear storage area, respectively . The peripheral edge of the bag body includes both side edges extending in the vertical direction and front and rear end edges extending in the horizontal direction, and the inner and outer surface sheets are substantially between the joint portion and at least the front and rear end edges. The bodily fluid treatment article according to claim 1, wherein a first non-joining region that is not joined to each other is formed, and the front housing region and the rear housing region are formed by the first non-joining region.   The body fluid treatment article according to claim 1 or 2, wherein a plurality of the joint portions are formed, and the first passage is formed at least between the two joint portions adjacent in the lateral direction. A second passage is formed on the laterally outer side of the first passage between the joint and at least one of the side edges, and the second passage includes the front accommodation region and the rear accommodation region. preparative communicating, wherein the lateral dimension of the second passage, the lateral large claim 2 Symbol placement of the body fluid treatment articles than the dimension of the first passage. The bag includes a lateral center line that bisects the longitudinal dimension,
Said first contact and the second passage, when cut in a line parallel to said transverse centerline, they cut surface, is formed annularly by at least the inner and outer sheets and the junction of the first passage than the length of the circumference forming the annular body fluid treatment article according to claim 4, wherein a smaller range Symbol length in the circumferential forming the second passage has a long dimension relationship. A plurality of the first passages are formed in the lateral direction,
When the first and second passages are cut in a line parallel to the lateral center line and the cut surfaces form a perfect circle, the first passage and the second passage are more than the total area of the cut surfaces of the first passage. The body fluid treatment article according to claim 5, wherein the total area of the cut surfaces of the two passages is larger.   The body fluid treatment article according to any one of claims 1 to 6, wherein the joining portion is formed by at least a joining line of a filament. The humor treatment article according to claim 7, wherein a separation dimension of the joining line forming the first passage decreases from the opening toward the accommodation region. The first passage includes a front first passage located between the opening and the front housing region, a rear first passage located between the opening and the rear housing region, and the opening and both side edges. The body fluid treatment article according to claim 2, further comprising a first side passage located between the first side passage and the second side passage.   The body fluid treatment article according to any one of claims 1 to 9, wherein a second non-joining region in which the inner and outer surface sheets are not substantially joined to each other is formed between the opening and the joining portion. . In a wearing article including a chassis having a longitudinal direction and a lateral direction, a body side and the opposite side, and a front waist region, a rear waist region, and a crotch region located between the front and rear waist regions that are continuous in the longitudinal direction,
The bodily fluid treatment article according to claim 1 located at least in the crotch region,
The wearing article, wherein the opening of the body fluid treatment article is located in the crotch region.   The bodily fluid treatment article is attached to a side of the chassis opposite to the body side, and the chassis is formed so that bodily fluid can flow into the opening of the bodily fluid treatment article at least in the crotch region. Item 11. A worn article according to Item 11. The chassis has a hole formed in the crotch region,
The wearing article according to claim 12, wherein inflow of bodily fluid is possible to the opening of the bodily fluid treatment article through the hole, and the hole and the opening overlap.

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