JP5530650B2 - Absorbent articles - Google Patents

Absorbent articles Download PDF

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JP5530650B2
JP5530650B2 JP2009079873A JP2009079873A JP5530650B2 JP 5530650 B2 JP5530650 B2 JP 5530650B2 JP 2009079873 A JP2009079873 A JP 2009079873A JP 2009079873 A JP2009079873 A JP 2009079873A JP 5530650 B2 JP5530650 B2 JP 5530650B2
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portion
gathers
top sheet
absorber
auxiliary
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JP2010227387A (en
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友衣子 中谷
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大王製紙株式会社
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Description

  The present invention relates to an absorbent article.

  There are various types of absorbent articles with built-in absorbers, but as a kind of absorbent articles such as disposable diapers and absorbent pads for adults, they are not exchanged by urination once or twice Night pads are generally known. When wearing a pad such as a night pad that has a three-dimensional gather and urinating repeatedly in this pad, the absorption capacity of the absorber near the urination port reaches the limit, Gradually the absorption speed will decrease. When the absorption speed is lower than the urination speed, the urine is pooled from the hips of the body to the part of the pad corresponding to the crotch, but the pooled urine is slowly absorbed and diffused in the absorber. The part of the buttocks where pressure is applied is widely absorbed.

  However, as the absorption speed falls below the urination speed, urine leakage may occur even from a pad having a structure having left and right three-dimensional gathers for preventing leakage. One of the major causes of this leakage is that when the pad is attached to a tape-type disposable diaper and placed on the body and lays on its back, the left and right sides located on the back side from the urination port on the average are 190 to 200 mm away on average. It is conceivable that the three-dimensional gather is crushed by the buttocks.

  And as a result of the urine leaking easily from the portion where the three-dimensional gather is crushed, the urine pooled especially during high urination as described above overflows from the sleeping portion of the three-dimensional gather, Even if the pad as a whole still has the absorption capability, it will induce leakage of urine.

JP 2000-271170 A JP 2003-325563 A

  Therefore, the main problem of the present invention is not only to prevent leakage of urine pooled in the crotch portion during high urination but also as the three-dimensional gather is crushed by the body, and effectively use the entire absorbent body Thus, an object of the present invention is to provide an absorbent article that can enhance the absorption capacity during actual use.

The present invention that has solved the above problems is as follows.
<Invention of Claim 1>
It has a front part and a rear part extending to the front side and the rear side of the crotch part,
An absorber extending in the front-rear direction is provided at least from the crotch portion to the rear side portion, and the surface of this absorber is covered with a liquid-permeable top sheet,
In the absorbent article in which two pieces of three-dimensional gathers are provided on the top sheet across the absorber,
The two two auxiliary gather which rises from the inside a was in and part of the absorbent body and heavy Naru on the top sheet of the standing gathers, provided pair along the cleft of the buttocks of the body,
An absorbent article, wherein two slits are arranged in an absorbent body so as to intersect each position where two auxiliary gathers start rising from a portion on a top sheet .

(Function and effect)
According to the knowledge of the present inventor, when urine is pooled around the two right and left three-dimensional gathers at the time of high urination, these three-dimensional gathers collapse and fall asleep, and there is a gap between the three-dimensional gather and the body. It has been found that there is a risk of leakage of urine when it is made. On the other hand, according to the present claim, two auxiliary gathers are provided side by side in a portion on the top sheet that is inside the two solid gathers. Then, these two auxiliary gathers are not arranged so as to extend in parallel with each other along the longitudinal direction of the absorbent body, for example, but are arranged so as to be along the groove of the buttocks of the body.

  That is, in this claim, as the body has a groin groove, the auxiliary gathers are provided on the top sheet along the groin groove, so that the two right and left three-dimensional gathers are crushed. Even if there is a gap between the gather and the body, the auxiliary gather on the top sheet stands up and functions without being crushed, so that this auxiliary gather prevents leakage of urine.

  In addition, for example, two slits are arranged in the absorber so as to intersect with two auxiliary gathers as a curve that flows from the middle to the side portions that are both side portions of the absorber. As a result of allowing the pooled urine along the slit to be diffused in the absorbent body, the entire absorbent body is effectively used to increase the urine absorption capacity.

  As described above, according to the absorbent article according to the present invention, at the time of high urination, not only can the urine pooled in the crotch part leak out as the three-dimensional gather is crushed by the body, but also the absorbent body The whole can be effectively used to increase urine absorbency during actual use.

<Invention of Claim 2>
The absorbent article according to claim 1 , wherein the positions where the two auxiliary gathers start rising from the portion on the top sheet are each formed in an arc shape protruding outward.

(Function and effect)
When the auxiliary gathers are shaped to form an arc on the outside, the space for pooling urine increases, and according to the present invention, urine is more difficult to collect during three-dimensional gathering. The effect will increase.

<Invention of Claim 3>
The absorbent article according to claim 1 , wherein the positions where the two auxiliary gathers start rising from the portion on the top sheet are each formed in an arc shape protruding inward.

(Function and effect)
When the auxiliary gathers are shaped so as to draw an arc on the inside, the two auxiliary gathers more reliably follow the shape of the groove of the buttock. Adhesion is increased.

<Invention of Claim 4>
The absorbent article according to claim 1, wherein the two slits are arranged so as to intersect with two auxiliary gathers while forming a curve that flows from the middle to the side portion.

(Function and effect)
According to the present claim, since the absorber on the back side portion can also be used effectively, a higher amount of urine can be maintained in actual use.

  As described above, according to the absorbent article of the present invention, not only the urine pooled in the crotch portion during high urination is prevented from leaking as the three-dimensional gather is crushed by the body, but also the entire absorbent body. An excellent effect is obtained that it can be effectively used to increase the absorbency during actual use.

It is a top view which shows the inner surface side of the expansion | deployment state of the absorption pad which concerns on 1st Embodiment. It is a top view which shows only the principal part. It is YY sectional drawing of FIG. It is ZZ sectional drawing of FIG. It is a top view which shows only the principal part of FIG. It is sectional drawing corresponding to FIG. 1 of the 1st modification of 1st Embodiment. It is sectional drawing corresponding to FIG. 1 of the 2nd modification of 1st Embodiment. It is a top view which shows the inner surface side of the expansion | deployment state of the absorption pad which concerns on 2nd Embodiment. It is a top view which shows the inner surface side of the expansion | deployment state of the absorption pad which concerns on 3rd Embodiment. It is a top view which shows the inner surface side of the expansion | deployment state of the absorption pad which concerns on 4th Embodiment.

  Hereinafter, a first embodiment of the present invention will be described in detail with reference to the accompanying drawings. The term “groin” in the terminology of the present invention means a part that corresponds to the crotch of the body at the time of use. Range, or a predetermined range at the center in the front-rear direction of the article. In the case of having a narrow constricted portion in the middle in the front-rear direction of the article or in the middle in the front-rear direction of the absorbent body, it means a predetermined front-rear direction range in which the minimum width portion of one or both constricted portions is the center in the front-rear direction. Further, “front part (abdominal part)” means a part on the front side of the crotch part, and “rear part (back side part)” means a part on the rear side of the crotch part.

  1 to 4 show an absorption pad 200 according to the present invention. The absorbent pad 200 has a crotch portion C2 and a front side portion F2 and a rear side portion B2 extending on both front and rear sides thereof. The dimensions of each part can be determined as appropriate. For example, the total length (length in the front-rear direction) M is about 350 to 700 mm, and the total width W1 is about 130 to 400 mm (however, narrower than the width of the diaper absorbing surface). In this case, the length of the crotch portion C2 in the front-rear direction is about 10 to 150 mm, the length of the front portion F2 is about 50 to 350 mm, and the length of the rear portion B2 is about 50 to 350 mm. be able to.

  The absorbent pad 200 has a basic structure in which an absorber 23 is interposed between an inner surface of a liquid-impermeable back sheet 21 having an outer sheet 32 laminated on the outer surface and a liquid-permeable top sheet 22. .

  That is, the liquid-impervious backsheet 21 formed much larger than the absorber 23 is provided on the back surface side of the absorber 23. As the liquid-impermeable back sheet 21, a sheet having moisture permeability can be used in addition to a polyethylene film or the like without impairing the water barrier from the viewpoint of preventing stuffiness. This water-impervious / breathable sheet is a microporous sheet obtained by, for example, melt-kneading an inorganic filler in an olefin resin such as polyethylene or polypropylene to form a sheet, and then stretching in a uniaxial or biaxial direction. Can be used.

  Further, the outer surface of the liquid-impermeable back sheet 21 is covered with an exterior sheet 32 made of a nonwoven fabric, and this exterior sheet 32 protrudes outside the periphery of the back sheet 21 with a predetermined protrusion width. Yes. Various nonwoven fabrics can be used as the exterior sheet 32. As the material fiber constituting the nonwoven fabric, synthetic fibers such as polyethylene or polypropylene, synthetic fibers such as polyester and amide, recycled fibers such as rayon and cupra, and natural fibers such as cotton can be used.

  The surface side of the absorber 23 is covered with a liquid-permeable top sheet 22. Although the absorber 23 partially protrudes from the side edge of the top sheet 22 in the illustrated form, the width of the top sheet 22 can be widened so that the side edge of the absorber 23 does not protrude. As the top sheet 22, a perforated or non-porous nonwoven fabric or a perforated plastic sheet is used. As the material fiber constituting the nonwoven fabric, synthetic fibers such as polyethylene or polypropylene, synthetic fibers such as polyester and amide, recycled fibers such as rayon and cupra, and natural fibers such as cotton can be used.

  An intermediate sheet 25 that is a mesh film is interposed between the top sheet 22 and the absorber 23. That is, the intermediate sheet 25 is provided to prevent the urine that has been absorbed by the absorber 23 from returning, and is formed of a mesh film that is a material having low water retention and high liquid permeability.

  When the front end of the top sheet 22 is 0% and the rear end of the top sheet 22 is 100%, the front end of the intermediate sheet 25 is preferably located in the range of 0 to 11%. It is preferably located in the range of 92 to 100%. Moreover, it is preferable that the width | variety 25w of the intermediate sheet 25 is about 50 to 90% of the width | variety L2 of the upper layer absorber 23U mentioned later.

  At both ends in the front-rear direction of the absorbent pad 200, the exterior sheet 32 and the liquid-permeable top sheet 22 are attached to the front and rear ends of the absorbent body 23 so as to extend to both front and rear sides, and the end flap portions EF where the absorbent body 23 is not present. Is formed. On both sides of the absorbent pad 200, the exterior sheet 32 extends outward from the side edge of the absorber 23, and the width of the barrier sheet 24 is formed on the inner surface of the portion from the extended part to the side part of the top sheet 22. A portion 24x on the outer side in the direction is affixed over the entire front-rear direction and constitutes a side flap portion SF where the absorber 23 does not exist.

  These pasted portions are shown as dotted patterns in FIG. 1, and can be formed by hot melt adhesive, heat sealing, or ultrasonic sealing. These end flap part EF and side flap part SF comprise the peripheral part of this invention, and the part enclosed by these makes | forms the main-body part of this invention. When the exterior sheet 32 is not provided, the liquid-impervious backsheet 21 can be extended to the side flap part SF instead of the exterior sheet 32 to form the outer surface side of the side flap part SF.

  As the material for the barrier sheet 24, a plastic sheet or a melt-blown nonwoven fabric can be used. However, in terms of touch to the skin, a nonwoven fabric that is water-repellent treated with silicon or the like is preferably used.

  A portion 24c on the center side in the width direction of the barrier seat 24 extends to the top sheet 22, and an elongated elastic member 24G is stretched along the front-rear direction at the end on the center side in the width direction. It is fixed with a melt adhesive or the like. As the elongated elastic member 24G, styrene rubber, olefin rubber, urethane rubber, ester rubber, polyurethane, polyethylene, polystyrene, styrene butadiene, silicon, polyester, etc., which are formed in a thread shape, a string shape, a belt shape, or the like. Ordinarily used materials can be used.

  Further, the barrier sheets 24, 24 are fixed by being bonded to the inner surface of the article (in the illustrated form, the surface of the top sheet 22 and the outer surface of the exterior sheet 32) across the entire front and rear direction, and the width direction center side. Portion 24c is bonded and fixed to the inner surface of the article (the surface of the top sheet 22 in the illustrated embodiment) at both ends in the front and rear direction, and is fixed to the inner surface of the article (the surface of the top sheet 22 in the illustrated embodiment) between both ends in the front and rear direction. It has not been. As shown in FIG. 1, this non-fixed portion is a portion that becomes a barrier portion that can stand up with respect to the inner surface of the article (the surface of the top sheet 22 in the illustrated embodiment), and the standing base end 24 b has a width in the barrier sheet 24. It is located at the boundary between the fixed portion 24x on the outer side in the direction and the inner portion 24c.

  The absorbent body 23 is basically made of a pulp fiber pile, an aggregate of filaments such as cellulose acetate, or a non-woven fabric, and is obtained by mixing, adhering, etc., a superabsorbent polymer such as particulates as necessary. Can be used. Moreover, the shape of the absorber 23 can be set to an appropriate shape such as a strip shape in which the front portion is relatively wider than the rear portion, a rectangular shape, or a trapezoidal shape.

  On the other hand, the absorbent body 23 has an upper layer absorbent body 23U having a width L2 narrower than the width L of the lower layer absorbent body 23B and extending in the front-rear direction at least from the crotch portion C2 to the rear side portion B2 on the lower layer absorbent body 23B. Has a two-layer structure in which are stacked. Further, the lower layer absorber 23B and the upper layer absorber 23U are arranged so as to be in direct contact with each other, and when mixing the superabsorbent polymer particles, the lower layer absorber 23B and the upper layer absorber 23U are arranged. It is structured to be integrally wrapped with a core wrap 26 formed of crepe paper or nonwoven fabric.

  In this embodiment, the core wrap 26 includes an upper core wrap 26A that covers the upper side of the upper layer absorbent body 23U and a lower core wrap 26B that wraps the lower side of the lower layer absorbent body 23B, as shown in FIG. However, in the portion corresponding to the ZZ cross section of FIG. 1, both sides of the core wrap 26 are cut as shown in FIG.

  Here, as a nonwoven fabric, it is possible to make the fiber which consists of thermoplastic polymer materials, such as polyolefin, such as polyethylene and a polypropylene, polyesters, such as a polyethylene terephthalate, polyamides, such as nylon (trademark), as a constituent fiber. These fibers may be a core-sheath type or a side-by-side type composite fiber.

  As described above, in the embodiment, the intermediate sheet 25 that is a mesh film having liquid permeability described above is disposed on the upper side of the upper layer absorbent body 23U via the core wrap 26, and the upper surface of the upper layer slit 40 described later is disposed on the intermediate sheet. 25 is covered. Further, the length M4 in the front-rear direction of the upper layer absorber 23U may be the same as the length M3 in the front-rear direction of the lower layer absorber 23B, but is preferably about 70 to 85%. Further, it is desirable that the total width L2 of the upper layer absorbent body 23U is about 40 to 60% of the total width L of the lower layer absorbent body 23B.

The fiber basis weight and the basis weight of the superabsorbent polymer in the absorbent body 23 can be appropriately determined, but the fiber basis weight is preferably about 100 to 600 g / m 2, and the basis weight of the absorbent polymer is about 0 to 400 g / m 2. Is preferable. More specifically, the fiber basis weight of the lower layer absorbent body 23B can be, for example, about 80 to 400 g / m 2 , and the basis weight of the superabsorbent polymer can be, for example, about 50 to 400 g / m 2. Can be about 80 to 300 g / m 2 , and the basis weight of the superabsorbent polymer can be about 10 to 200 g / m 2, for example.

  The lower layer absorbent body 23B and the upper layer absorbent body 23U may contain pulp as described above in addition to the superabsorbent polymer. When the pulp is contained, the pulp / polymer ratio of the lower layer absorbent body 23B is as follows. In order to enhance the absorption effect, it is considered to be 3 or less, and the ratio of the pulp / polymer of the upper absorbent body 23U is 1.5 or more in order to prevent absorber breakage due to weight of urination In particular, 1.9 is optimal.

  In the lower layer absorbent body 23B, a predetermined portion in the middle in the front-rear direction including the crotch portion C2 is formed as a narrow constricted portion 23n. The minimum width L3 of the constricted portion 23n is preferably about 50 to 65% of the width L1 of the non-constricted portion located before and after the constricted portion 23n. When the front end of the article is 0% and the rear end of the article is 100%, the front end of the constricted portion 23n is preferably located in the range of 10 to 25%, and the rear end of the constricted portion 23n is 40 to 65%. It is preferable that the portion of the constricted portion 23n having the minimum width L3 (minimum width portion) is preferably in the range of 25 to 30%.

  On the other hand, as shown in FIG. 1, the two auxiliary gathers 28 are not parallel to each other in the portion on the liquid-permeable top sheet 22 that is the inner side of the barrier sheet 24 that is two solid gathers. Are arranged in line with each other. Each of these two auxiliary gathers 28 contains a plurality of thread rubbers 29.

  Under the present circumstances, the front-end | tip part of the side of these auxiliary gathers 28 is located in the ventral side from 190-200 mm from the urination opening (black star mark in a figure) that the barrier sheet | seat 24 may be crushed. However, if the position is 180 mm or less from the urination port, the effect is further enhanced, and if the distal end portion of the auxiliary gathers 28 is positioned at a position parallel to the urination port, it is more effective.

  Note that the two auxiliary gathers 28 may be joined at the end on the back side, but urine flows from the back side to the back side, so that it is possible to more reliably prevent overflow of urine. it can. However, the arrangement of the two auxiliary gathers 28 in parallel with the barrier sheet 24 is not effective because a space for pooling urine cannot be made sufficiently. In addition, since the auxiliary gathers 28 per sheet can be used to contact the face of the buttocks instead of a line by using a plurality of thread rubbers 29 as described above, the adhesive gathers more gently on the skin. It will increase.

And as a material of this auxiliary gather 28, water-repellent SMMS etc. can be considered, but since it is on the liquid-permeable top sheet 22, in order to reduce the uncomfortable feeling hitting the skin, it is better that the basis weight is not too high. It is conceivable that the basis weight (for example, 5 to 15 g / m 2 ) is lower than the basis weight of the barrier sheet 24.

On the other hand, equipment for installing the auxiliary gathers 28 on the liquid-permeable top sheet 22 will be described below.
That is, the same equipment as that for installing the barrier sheet 24 is arranged inside the barrier sheet 24, and the feeding speed of the auxiliary gathers 28 is made slower than the flow speed of the absorbent pad 200 as a product so that the auxiliary gathers 28 are used. It is conceivable that the auxiliary gathers 28 are pasted on the liquid-permeable top sheet 22 by intermittent operation by swinging the equipment.

  From the above, in this embodiment, since the body has a groin groove, the left and right barrier sheets 24 are crushed by providing the auxiliary gathers 28 on the liquid-permeable top sheet 22 along the groove of the buttock. Even if this happens, the auxiliary gathers 28 on the liquid-permeable top sheet 22 stand up and function without being crushed, and even if there is a gap, the auxiliary gathers 28 prevent leakage of urine.

  Further, the upper layer absorbent body 23U has two upper layer slits 40 each of which intersects with the two auxiliary gathers 28 and has a curve that flows from the middle to the side portion. It arrange | positions so that the front and back of the body 23U may be penetrated. By arranging the two upper layer slits 40 in the upper layer absorber 23U in this way, the urine pooled along the two upper layer slits 40 can be diffused in the absorber 23. Effective use of the whole increases urine absorption.

  As described above, according to the absorbent pad 200 that is the absorbent article according to the present embodiment, at the time of high urination, the urine pooled at the crotch portion is prevented from leaking as the barrier sheet 24 is crushed by the body. Not only can the entire absorbent body 23 be effectively used, but the urine absorbability during actual use can be increased.

  That is, in the upper layer absorbent body 23U, the upper layer slits 40 penetrating the front and rear surfaces are extended from the crotch part C2 to the rear side part B2 on both the left and right sides of the center line in the width direction. Further, the rear side widening start position (minimum width part) 23w starts to increase in width toward the rear side of the constricted portion 23n of the lower layer absorber 23B, and is positioned further outward in the width direction toward the rear side. Or a diffusion promoting portion 41 extending from the center in the width direction toward the outer side in the width direction along the width direction.

  The diffusion promoting portion 41 preferably has a curved shape such as an arc along the constricted portion 23n of the lower layer absorber 23B as in the illustrated example, but may be linear. Moreover, although the upper layer absorber 23U of the illustrated form has a rectangular shape, it may have a constricted portion in the middle part in the front-rear direction (not shown) as in the case of the lower layer absorber.

  With such a structure, the upper slit 40 is secured as a urine diffusion path even in a state where a compressive force is applied. Therefore, as shown by an arrow in FIG. 5, the excretion position ( In the process in which urine locally reaching the absorber 23 diffuses rearward along the upper layer slit 40 in the black star mark in the figure), it also extends outward in the width direction along the diffusion promoting portion 41 of the upper layer slit 40. It diffuses and is supplied in a wide range in the width direction with respect to the wider lower layer absorber 23B.

  The width w of the two upper layer slits 40 can be determined as appropriate, but in the normal case, it is preferably in the range of 10 to 30 mm, and particularly preferably in the range of 10 to 15 mm. If the width w of the upper layer slit 40 is too narrow, the slit is liable to be crushed in the width direction. If it is too narrow, the upper and lower members (for example, the packaging sheet of the absorber 23) enter the slit 40, and the space for diffusion is reduced anyway. Therefore, it is not preferable.

  On the other hand, the upper layer slit 40 preferably has an introduction portion 42 having a left-right slit interval d of 20 to 40 mm as a portion continuous to the front side of the diffusion promoting portion 41. A more preferable distance d is 10 to 40 mm. The distance M5 from the front end of the introduction portion 42 to the front end of the article is about 1/3 of the total length of the article (for example, if the total article length M is 630 mm, the distance M5 is 250 mm). By disposing the upper layer slit 40 at the rear side position, the structure in which only a part of the absorber 23 does not absorb urine can prevent the collapse of the absorber more reliably.

  As a first modification of the above-described first embodiment, as shown in FIG. 6, it is conceivable to form two auxiliary gathers 28 in an arc shape protruding outward. When the shape of the auxiliary gathers 28 that forms an arc on the outside in this way is obtained, a space for pooling urine is increased, and urine is not further collected at the barrier sheet 24. As a result, the crotch portion C2 can be obtained during high urination. The action effect which can prevent that the pooled urine leaks out increases.

  Further, as a second modification of the first embodiment described above, as shown in FIG. 7, it is conceivable to form two auxiliary gathers 28 in an arc shape protruding inward. Thus, when it is set as the shape of the auxiliary gathers 28 which draws an arc inside, it will follow along the shape of the groove | channel of a buttocks, and the adhesiveness with the body of the auxiliary gathers 28 will come to increase.

Next, a second embodiment of the present invention will be described in detail with reference to FIG. Note that the same members as those described in the first embodiment are denoted by the same reference numerals, and redundant description is omitted.
In the present embodiment, the structure is substantially the same as that of the first embodiment, but a structure in which a plurality of sets of upper and lower slits 40 on the left and right sides are set as one set and arranged in the back side direction. By arranging a plurality of sets of two upper layer slits 40 in this way, quick diffusion to the back side is possible, and the absorption speed can be maintained even during high urination. For this reason, the urine pooled in each upper layer slit 40 is reduced, and overflow leakage is further prevented as compared with the case where the upper layer slit 40 is one set.

Next, a third embodiment of the present invention will be described in detail with reference to FIG. Note that the same members as those described in the first embodiment are denoted by the same reference numerals, and redundant description is omitted.
In the present embodiment, the structure is almost the same as that of the second embodiment, but the structure also includes the emboss 30. That is, the emboss 30 has the same effect as the upper layer slit 40, and urine is diffused through the emboss 30. Therefore, the emboss 30 is useful for diffusion of urine. It also has the effect of preventing cracking.

  In particular, when there are a plurality of upper layer slits 40 as in the second embodiment, the absorber 23 is liable to bend or cracked, and therefore the emboss 30 is disposed between the upper layer slit 40 and the upper layer slit 40. Thus, it is possible to prevent the absorber 23 from being twisted or cracked.

Next, a fourth embodiment of the present invention will be described in detail with reference to FIG. Note that the same members as those described in the first embodiment are denoted by the same reference numerals, and redundant description is omitted.
In the present embodiment, the structure is substantially the same as that of the first embodiment, but the planar gathers 31 are arranged in the vicinity of the crotch of the absorbent pad 200.

  Conventionally, the flat gather 31 has been arranged near the crotch of the absorbent pad 200, and the front and rear direction of the absorbent pad 200 is naturally rounded in the tape-type disposable diaper, so that the barrier sheet 24 of the crotch C2 is more physically attached. In this embodiment, the planar gathers 31 are arranged on the back side. In other words, the absorbent pad 200 is thus rounded in the width direction.

  Therefore, according to the present embodiment, since the specification is rounded in the width direction of the absorbent pad 200, the auxiliary gathers 28 on the liquid-permeable top sheet 22 can easily stand up. As it comes into close contact, urine becomes more difficult to exceed the auxiliary gathers 28. As a result, even if the barrier sheet 24 that is crushed is lifted and the urine contacts the barrier sheet 24 beyond the auxiliary gathers 28 on the liquid-permeable top sheet 22, the barrier sheet 24 can prevent leakage. It also becomes.

  Further, since the side gathers 31 rise due to the flat gathers 31, even when urine exceeds the barrier sheet 24, urine is retained by the side flaps SF, and urine leaks to the outside. Can be suppressed as much as possible.

  In addition, by applying a cream-like material to the portion of the auxiliary gather 28 that touches the body, when the absorbent pad 200 is attached, the auxiliary gather 28 adheres to the body to fill the gap and prevent leakage. be able to.

  INDUSTRIAL APPLICATION This invention can be utilized for absorbent articles in general, such as an absorption pad, a pants-type or a tape-type disposable diaper, or a napkin for arrangement.

  DESCRIPTION OF SYMBOLS 21 ... Liquid-impermeable back sheet, 22 ... Liquid-permeable top sheet, 23U ... Upper layer absorber, 23B ... Lower layer absorber, 24 ... Barrier sheet, 26 ... Core wrap, 28 ... Auxiliary gathers, 32 ... Exterior sheet, 40 ... Upper layer slit, 200 ... absorbent pad.

Claims (4)

  1. It has a front part and a rear part extending to the front side and the rear side of the crotch part,
    An absorber extending in the front-rear direction is provided at least from the crotch portion to the rear side portion, and the surface of this absorber is covered with a liquid-permeable top sheet,
    In the absorbent article in which two pieces of three-dimensional gathers are provided on the top sheet across the absorber,
    The two two auxiliary gather which rises from the inside a was in and part of the absorbent body and heavy Naru on the top sheet of the standing gathers, provided pair along the cleft of the buttocks of the body,
    An absorbent article, wherein two slits are arranged in an absorbent body so as to intersect each position where two auxiliary gathers start rising from a portion on a top sheet .
  2. The absorbent article according to claim 1 , wherein the positions where the two auxiliary gathers start rising from the portion on the top sheet are each formed in an arc shape protruding outward.
  3. The absorbent article according to claim 1 , wherein the positions where the two auxiliary gathers start rising from the portion on the top sheet are each formed in an arc shape protruding inward.
  4.   The absorbent article according to claim 1, wherein the two slits are arranged so as to intersect with two auxiliary gathers while forming a curve that flows from the middle to the side portion.
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JP5530650B2 true JP5530650B2 (en) 2014-06-25

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JP5765150B2 (en) * 2011-09-06 2015-08-19 王子ホールディングス株式会社 Absorbent articles
PL2740449T3 (en) * 2012-12-10 2019-07-31 The Procter & Gamble Company Absorbent article with high absorbent material content
JP5939293B2 (en) * 2014-11-10 2016-06-22 王子ホールディングス株式会社 Absorbent articles

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AT113804T (en) * 1988-12-20 1994-11-15 Procter & Gamble Underpants.
JP3847679B2 (en) * 2002-07-23 2006-11-22 花王株式会社 Absorbent structure and diaper using the same
JP4092319B2 (en) * 2004-09-06 2008-05-28 大王製紙株式会社 Disposable diapers
JP2006181024A (en) * 2004-12-27 2006-07-13 Uni Charm Corp Disposable wear article
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