JP2018164635A - Absorbent article - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an absorbent article which avoids collapse of a protruding part in a crotch part, prevents a decrease in an absorption speed, and prevents a decrease in the texture to a skin and skin troubles.SOLUTION: In an absorbent article, in a front part of an absorber, a front expanding part which extends in a width direction with respect to an intermediate part of the absorber is formed. In a rear part of the absorber, a rear expanding part which extends in the width direction with respect to the intermediate part of the absorber is formed. On both side parts of the rear expanding parts, bulky parts respectively projecting toward the inside are provided. On the absorber having a region where a protruding part is formed on a top sheet, groove parts extending in a front-back direction at a predetermined interval in the width direction are provided. A height of the bulky part is formed to be higher than a height of the groove part. When both side parts of the absorber are folded inward along a folding line which is positioned between the bulky part and the groove part in the width direction and extends in the front-back direction, the bulky part is loosely fit in the groove part.SELECTED DRAWING: Figure 2

Description

The present invention relates to an absorbent article that prevents crushing of a top sheet convex part of a buttock from a crotch part in a package by a folding position and an absorbent body shape of the absorbent body.

  In general, an absorbent article such as a urine pad is manufactured and sold in the form of being folded and stored in a package. In order to store in a package, it may be folded in three in the width direction. For example, the left side portion of the absorbent body with the left imaginary longitudinal line running in the front-rear direction (hereinafter also referred to as the vertical direction) divided into two in the middle of the width direction (hereinafter also referred to as the horizontal direction) of the left side portion of the absorbent body. Folding inward and folding the right side of the absorbent body inward with the right virtual longitudinal line dividing into two in the middle of the width direction of the right side of the absorbent body as the center of the fold, and trifolding with the two vertical axes as the folds . Further, after folding the front side portion of the absorber inward with the front virtual transverse line dividing the absorber into three in the front-rear direction as the crease center, the rear virtual transverse line dividing into three in the front-rear direction is absorbed with the crease center as the center. This is a case where the rear side of the body is folded inward and is also folded in the front-rear direction (hereinafter simply referred to as tri-fold). On the other hand, there is an absorber in which a concavo-convex surface is generated on the top sheet in order to improve the diffusibility of urine and improve softness and touch. For this reason, when the package is folded and stored as described above, the convex and concave portions of the top sheet are crushed by the storage pressure, resulting in a decrease in urine diffusibility, a decrease in touch, and skin trouble due to liquid residue. An increase occurs. In particular, when the convex part of the crotch part is crushed, the absorption speed is lowered, and when the convex part of the buttock is crushed, there is a problem that the touch is lowered and skin trouble occurs.

  Therefore, when the absorbent article is folded and stored in a package like a urine collection pad, an absorbent article that can be folded so that the convex and concave portions of the top sheet are not crushed by the storage pressure is desired. Yes.

  Conventionally, an absorbent article is a urine collecting pad folded in a deployable manner using a top sheet that has been processed to be uneven (Patent Document 1) and a liquid-permeable top sheet that has protrusions formed in this manner. A urine pad that can maintain the shape of the convex portion formed in a predetermined region of the top sheet is known (Patent Document 2).

JP 2004-174234 A Japanese Patent Laying-Open No. 2015-157047

  However, even in the conventional product, the portion where the convex portion overlaps still remains and the convex portion is crushed at this portion, and the above problem has not been solved.

  Therefore, the main problem of the present invention is to avoid collapse of the crotch convex portion due to folding, prevent a decrease in absorption speed, avoid collapse of the convex portion of the buttocks, and prevent a decrease in touch and skin troubles. Is to provide.

The invention that has solved the above problems is as follows.
In an absorbent article including an exterior body and an absorbent body provided inside the exterior body, the absorbent body includes a liquid-permeable top sheet, a liquid-impermeable back sheet, and a space between the top sheet and the back sheet. Formed with an absorbent core composed of pulp fibers and an absorbent polymer, and the absorbent body has a region where a convex portion is formed on the top sheet, and in the front-rear direction, the front portion of the absorbent body, Forming a front enlarged portion extending in the width direction from the intermediate portion of the absorber; forming a rear enlarged portion extending in the width direction from the intermediate portion of the absorber; and Both sides of the enlarged portion are provided with bulky portions that protrude inward, and the absorbent body is provided with grooves that extend in the front-rear direction with a predetermined interval in the width direction, and the height of the bulky portion is increased. It is formed higher than the height of the groove and in the width direction When the both sides of the absorber are folded inward along a fold line extending between the bulky part and the groove part and extending in the front-rear direction, the bulky part is loosely fitted into the groove part. The absorbent article characterized by the above.

  In the absorbent article according to the present invention, the bulky parts provided on both sides of the rear enlarged part support the rear enlarged part surface facing in the groove part, but the groove part does not touch the skin. May be crushed. By loosely fitting the bulky portion into the groove portion in this way, it is possible to hold a space between the top sheets facing each other when folded with respect to a portion that does not want to be crushed with respect to the surface of the absorbent article outside the groove portion. Provided is an absorbent article that avoids crushing of the convex part of the part, prevents a decrease in absorption speed, avoids crushing of the convex part of the heel part, and prevents a decrease in the skin and skin trouble.

  In another aspect, the present invention provides an absorbent article obtained by folding the absorbent article according to the above invention. That is, in the absorbent body in which the bulky part is loosely fitted in the groove part and the both side parts are folded inward, the front part of the absorbent body in the front-rear direction is approximately 1/3 in the front-rear direction. Folded to the central portion along a second fold line that is positioned between the front enlarged portions and extends in the width direction, and a rear portion of approximately 1/3 in the front-rear direction is placed on the bulky portion and the rear in the front-rear direction. It is an absorbent article which is located between the ends and is folded to the center along a third fold line extending in the width direction.

  According to another aspect of the present invention, the front enlarged portion is folded into the central portion at approximately 1/3 in the front-rear direction of the absorbent article according to the previous aspect of the present invention, and the trifold of the portion that becomes the surface in contact with the front body when worn. The front end portion is already folded along a fold line extending in the front-rear direction (hereinafter referred to as “C-fold” along the fold line extending in the front-rear direction), and the front end is a three-fold front end. A certain amount of space is ensured between the part and the crease, and the top sheet convex part is prevented from being crushed when the package is stored. Furthermore, the folding opposing surfaces of the absorbent article folded in the front-rear direction by folding the rear part into the center part in about 1/3 in the front-rear direction are the outer sheet outer surface and the front-rear enlarged part top sheet surface, and the top sheet and the bulky part are It is possible to avoid the crushing of the convex portion of the top sheet due to the bulky portion without facing directly.

  As described above, according to the present invention, the crushing of the top sheet surface convex part of the crotch part is prevented, the reduction of the absorption speed is prevented, the crushing of the convex part of the top sheet surface of the heel part is avoided, the touch is lowered and the skin trouble is caused. An absorbent article for preventing the above is provided.

It is a plane schematic diagram (inner surface side) of an absorptive article of a deployment state of one embodiment of a pad which is an absorptive article concerning the present invention. It is an inner surface side plane schematic diagram of the principal part of the product. It is an AA cross-sectional schematic diagram of FIG. It is a BB cross-sectional schematic diagram of FIG. It is a plane schematic diagram of the absorber of the unfolded state of the same product. It is a cross-sectional schematic diagram of the convex part of the same topsheet. It is a plane schematic diagram of the convex part of the same topsheet. It is a perspective schematic diagram at the time of folding of the same product. It is ZZ sectional drawing of FIG. It is an inner surface side plane schematic diagram of the principal part of other embodiments of a pad which is an absorptive article concerning the present invention. It is sectional drawing equivalent to FIG. 9 after folding the pad shown in FIG. It is an inner surface side plane schematic diagram of the principal part of the modified example of one Embodiment shown in FIG.

<One Embodiment>
Hereinafter, the pad 1 which is one embodiment of the absorbent article of the present invention will be described in detail with reference to the accompanying drawings.
As shown in FIGS. 1 and 2, the pad 1 is an absorbent article including an exterior body 27 and an absorbent body 23 provided inside the exterior body 27, and the absorbent body 23 is a liquid-permeable top sheet 22. , A liquid-impermeable back sheet 21, and an absorbent core 26 made of pulp fibers and an absorbent polymer provided between the top sheet 22 and the back sheet 21. The absorbent body has a convex portion on the top sheet. In the front-rear direction L, the front enlarged portion 30A, 30B extending in the width direction W from the intermediate portion of the absorber is formed in the front portion 30 of the absorber 23 in the front-rear direction L, Rear enlarged portions 32A and 32B extending in the width direction W from the intermediate portion of the absorber 23 are formed on the rear portion 32 of the absorber 23, and projecting inward on both sides of the rear enlarged portion 32, respectively. Bulky part 100A, 00B is provided, and the absorber 23 is provided with a groove portion 40 extending in the front-rear direction L with a predetermined interval in the width direction W, and the height of the bulky portions 100A and 100B is higher than the height of the groove portion 40. The both sides of the absorber 23 are folded inward along folding lines 33A and 33B that are formed between the bulky portions 100A and 100B and the groove portion 40 in the width direction W and extend in the front-rear direction. In this case, the bulky parts 100A and 100B are loosely fitted into the groove part 40, and the absorbent article is characterized in that

  The dimension of each part can be determined as appropriate. For example, the length L in the front-rear direction of the pad 1 is 350 to 700 mm, the width W in the width direction is 130 to 400 mm, and the length in the front-rear direction of the front body F is 50 to 350 mm. The length in the front-rear direction of the crotch portion C can be 10 to 150 mm, the length in the front-rear direction of the back body B2 can be 50 to 350 mm, and the minimum width of the crotch portion C can be 200 to 260 cm.

  The pad 1 includes a liquid-impermeable backsheet 21, a liquid-permeable topsheet 22, an absorber 23 disposed between the backsheet 21 and the topsheet 22, and both sides of the topsheet 22 in the width direction. It is formed by a three-dimensional gather 24 provided in the part.

  A back sheet 21 is provided on the outer edge of the absorber 23 so as to slightly protrude from the outer peripheral edge of the absorber 23. As the back sheet 21, a sheet having moisture permeability can be used in addition to a polyethylene film or the like without impairing water shielding 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.

  An exterior body 27 made of a nonwoven fabric is provided outside the backsheet 21 so as to slightly protrude from the outer peripheral edge of the backsheet 21. As the exterior body 27, various nonwoven fabrics can be used. As the material fiber constituting the non-woven fabric, synthetic fibers such as polyethylene or polypropylene such as olefin, polyester and amide, recycled fibers such as rayon and cupra, and natural fibers such as cotton can be used.

  A top sheet 22 is provided on the inner edge of the absorber 23. 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 non-woven fabric, synthetic fibers such as polyethylene or polypropylene such as olefin, polyester and amide, recycled fibers such as rayon and cupra, and natural fibers such as cotton can be used.

  An intermediate sheet 25 is provided between the top sheet 22 and the absorbent core 26. As the intermediate sheet 25, a material having low water retention and high liquid permeability, for example, various nonwoven fabrics or mesh films can be used.

  Three-dimensional gathers 24 are provided on both side portions of the top sheet 22 in the width direction. The three-dimensional gathers 24 are fixed to side portions of the exterior body 27 in the width direction, and the widths of the absorber 23 and the like from the fixed portions. It is formed from a main body part that extends beyond the side part of the direction to the side part of the inner surface of the top sheet 22. Further, the front and rear end portions of the main body portion in the front-rear direction are fixed to the top sheet 22, and the central portion of the main body portion in the front-rear direction is not fixed to the top sheet 22 and rises inward. In FIG. 1, the fixed part of the three-dimensional gather 24 is indicated by hatching.

  The three-dimensional gather 24 is formed of a double gather sheet 24A and an elongated elastic member 24B extending in the front-rear direction. As a material for the gather sheet 24A, a plastic sheet or a melt-blown nonwoven fabric can be used, but a water repellent treatment with silicon or the like can be used for the nonwoven fabric in terms of touch to the skin. Further, as the elastic member 24B, styrene rubber, olefin rubber, urethane rubber, ester rubber, polyurethane, polyethylene, polystyrene, styrene butadiene, silicon, polyester, etc. formed in a thread shape, a string shape, a belt shape, etc. Commonly used materials can be used. As shown in FIG. 4, the elastic member 24 </ b> B erects the three-dimensional gather 24 toward the inside by its stretching force.

  At the front and rear end portions in the front and rear direction of the pad, the top sheet 22 and the exterior body 27 are fixed to form a flap portion EF. The gather sheets 24A and the exterior body 27 are fixed at both end portions in the width direction of the pad to form the side flap portion SF. In addition, the absorber 23 does not extend in the flap part EF and the side flap part SF.

  The absorbent body 23 is a liquid-permeable top sheet 22, a liquid-impermeable back sheet 21, and an absorbent core 26 made of pulp fibers and an absorbent polymer provided between the top sheet 22 and the back sheet 21. Is formed. Further, the absorbent core 26 is based on a pile of pulp fibers, an aggregate of filaments such as cellulose acetate, or a non-woven fabric, and if necessary, mixes, fixes, etc. highly absorbent polymer particles such as particles. Can be used. The absorbent core 26 is preferably wrapped with a wrapping sheet (not shown) such as crepe paper in order to prevent the superabsorbent polymer particles from falling off.

  The absorber 23 forms a constricted central portion 31 in the crotch portion C of the pad, and the front enlarged portion 30A that extends in the width direction W from the middle portion of the absorber 23 at the front portion 30 of the absorber 23. , 30B, and rear enlarged portions 32A, 32B extending in the width direction W from the intermediate portion of the absorber 23 are formed in the rear portion 32 of the absorber 23, and both sides of the rear enlarged portions 32A, 32B are formed. The portions are provided with bulky portions 100A and 100B that protrude inward, and the absorber 23 has a long side in the front-rear direction extending in the front-rear direction L with a predetermined interval in the width direction W. The substantially rectangular groove part 40 which has is formed.

  The absorber 23 is formed such that a constricted shape is formed at the central portion 31, and the front enlarged portions 30A and 30B are cut into a substantially trapezoidal shape. The minimum width of the central portion 31 is 50 to 65% of the width W1 of the front side portion 30 and the rear side portion 32. Further, when the front end of the outer absorbent body 23B is 0% and the rear end of the outer absorbent body 23B is 100%, the front end of the central part 31 is arranged at 10 to 25% and the rear end of the central part 31 is 40 to 65. %, And the part which becomes the minimum width of the central portion 31 is arranged at 25 to 30%.

  As shown in FIG. 6, in one embodiment, on the surface portion of the absorber 23 in the top sheet 22, a large number of convex portions 41 projecting inward substantially over the entire top sheet have predetermined intervals in the front-rear direction and the width direction. It is formed in a staggered pattern. The region where the convex portion is formed on the top sheet does not need to be specified, and may be formed over almost the entire region as in the present embodiment, but the convex portion 41 is not necessarily formed over the entire region of the top sheet. It is preferable to include at least the periphery of the groove 40 described in detail later in the region. The convex portion 41 of the top sheet 22 may be formed by any method. For example, a part of the top sheet 22 is joined to the intermediate sheet 25 by pressure welding of an intermittent joining pattern. A configuration in which a concave portion is formed in the pressure welding portion and the convex portion 41 is reflectively formed around the concave portion may be employed.

  As a result, the top sheet exhibits uneven portions when the absorbent article is formed, and as shown in FIG. 7, the urine urinated at the urination position ZZ on the top sheet 22 flows more than in the front-rear direction or the width direction. Since a large amount of urine that flows in an oblique direction between the protruding portion 41 protruding adjacent to the protruding portion 41 and urinated to the urination position ZZ flows into the groove portions 40 formed on both sides of the urination position ZZ, it is absorbed. While suppressing a decrease in the possible amount, the crotch portion C is excellent in fit and is also excellent in anti-reverse property.

  The convex portion 41 can be formed by extruding the top sheet 22 from the outside to the inside using embossing. Moreover, the shape of the convex part 41 can be formed in circular shape, elliptical shape, and polygonal shape.

  Next, the bulky portion 100 disposed in the absorbent article that prevents the convex portion 41 protruding from the top sheet 22 from being crushed will be described. The bulky portion 100 is depicted as a blackened portion in plan view in FIG. 1, which is a developed view, as bulky portions 100 </ b> A and 100 </ b> B projecting inward on both sides of the rear enlarged portion 32. When the absorbent article 1 is packaged, the absorbent body 23 is positioned along the folding lines 33A and 33B extending in the front-rear direction and positioned between the bulky portions 100A and 100B and the groove portion 40 in the width direction W. Both sides are folded inward (C-fold). In this case, the bulky portions 100A and 100B are arranged to be loosely fitted into the groove portion 40. After C-folding in the width direction, as shown in FIG. 8, first, the front part of approximately 1/3 in the front-rear direction including the front enlargement part 32 is the bulky parts 100A, 100B and the front enlargement part in the front-rear direction L. 8 is folded forward toward the center as shown by the arrow on the back side in FIG. 8 along the second fold line 34 that is positioned between 32 and extends in the width direction W. The rear part is located between the bulky parts 100A, 100B and the rear end in the front-rear direction L and extends in the front-rear direction along the third fold line 35 extending in the width direction W as indicated by the arrow on the near side in FIG. F is folded to the center at L. In this way, it is tri-folded at a predetermined position to a length substantially equal to three in the front-rear direction L, but before that, a fold line extending in the front-rear direction L also in the width direction W, two points in FIG. Folded in a C shape to a length substantially equal to three in the width direction along the fold lines shown by chain lines 33A and 33B (hereinafter, a virtual C fold fold line is also referred to as a C fold line). When one side in the width direction is folded at the C-folded fold lines 33A and 33B, the bulky portions 100A, 100B and the groove portions 40A, 40B close to the C-fold line are loosely fitted to each other, and the left and right C-fold lines Are arranged in line symmetry. More specifically, the bulky portion 100 is a rectangular parallelepiped, and the groove portion 40 is slightly larger than the rectangular parallelepiped, and the rectangular groove in plan view has a protruding height (referred to as a height from the top sheet flat portion) of the bulky portion. The groove portions 40A and 40B and the bulky portions 100A and 100B are formed so as to be loosely fitted to each other and symmetrically arranged with respect to the C fold lines 33A and 33B, respectively. It is installed. The rear enlarged portions 32A, 32B extending in the width direction W from the intermediate portion of the absorber 23 are formed, and the bulky portions 100A, which protrude toward the inside, on both side portions 32A, 32B of the rear enlarged portion 32, respectively. 100B is provided, and the absorbent body 23 is provided with a groove portion extending in the front-rear direction L with a predetermined interval in the width direction W, and the height of the bulky portions 100A, 100B is formed higher than the height of the groove portion 40. When both sides of the absorber 23 are folded inward along the folding lines 33A and 33B that are positioned between the bulky portions 100A and 100B and the groove 40 in the width direction W and extend in the front-rear direction. Further, the bulky portions 100A and 100B are loosely fitted into the groove portion 40.

  As shown in FIG. 6, the groove portion 40 may be one in which only the skin side layer of the absorbent body 23 composed of two layers is opened, or penetrates to the back sheet 21 of the absorbent body 23 (not shown). But you can.

  At the time of C-folding, the groove portion 40 on the right side in the plan view is loosely fitted when the right bulky portion 100 is folded to the center in the width direction along the C fold line, and the height of the bulky portions 100A and 100B is the groove portion 40. Therefore, the bulky portion 100 supports both side portions 32A and 32B of the rear enlarged portion 32 on the folding side when it hits the bottom surface of the groove portion 40. Thus, the surface facing the groove on the top sheet 22 is supported by the bulky portion and the groove bottom surface, and the surfaces of the absorber 23 topsheet 22 that are not the bulky portion and the groove 40 surface are folded between the opposing surfaces. Since the space is secured and the convex portion 41 is not crushed, the urine discharged to the urination position ZZ on the top sheet 22 passes through the concave portion formed between the convex portions 41 even after being attached to the human body. A lot of urine discharged in the urination position ZZ flows in an oblique direction through the space formed between the convex portions 41 protruding from the top sheet 22 and the adjacent convex portions 41 rather than flowing in the direction or the width direction. It is possible to flow into the grooves 40 formed on both sides of the urination position ZZ.

  The bulky portion 100 can have various shapes as long as it is loosely fitted to the groove portion 40. In one embodiment, even the bulky portion 100 that protrudes in a rectangular parallelepiped shape with respect to the linear groove-shaped groove portion 40 is circular. Either a protruding bulky portion (not shown) or a bulky portion (not shown) protruding in an elliptical shape in plan view may be loosely fitted in any shape.

  The arrangement of the groove portions 40 is not limited to the parallel linear arrangement, and may be arranged in a square shape. The shape of the bulky portion 100 to be loosely fitted is a rectangular parallelepiped and is easy to manufacture.

FIG. 9 is a schematic diagram showing a Z cross section of the pad 1 that is an absorbent article when folded as shown in FIG. 8. FIG. 9 shows a ZZ cross-sectional view after folding, and the both sides of the absorber 23 along folding lines 33A and 33B extending in the front-rear direction located between the bulky portion and the groove portion in the width direction. When a part is folded inward, a mode that the said bulky part is loosely fitted by a groove part is shown. Front enlarged portions 30A, 30B of the front portion 30 of the absorbent body 23 folded inward along folding lines 33A, 33B (not shown) and rear enlarged portions 32A, 32B of the rear portion 32 are schematically shown. Concept 30 is folded in the front-rear direction toward the center along a second fold line (not shown), and the rear part 32 is folded in the front-rear direction toward the center facing the outer surface of the exterior body of the front part. Is shown. As described above, the bulky portion 100 is loosely fitted into the groove portion 40 provided in the absorber 23 at the time of C-folding. The groove portion 40 and the bulky portion 100 are arranged so as to be loosely fitted to each other and symmetrical with respect to the fold lines 33A and 33B, and the height of the bulky portion 100 is higher than the height from the bottom surface of the groove portion 40 to the opening. The absorber 100 is given a thickness at the bulky portion so as to be higher. As a result, a space is formed between the opposing faces of the folds other than the loosely fitting portion at the time of packaging. Therefore, the convex part 41 of the top sheet 22 is not crushed at the time of packaging.
(Execution variation)
In addition, FIG. 12 shows the implementation modification which provides the bulky parts 100C and 100D also in the both sides of the rear-end part of rear expansion part 32A, 32B further. In the example pad 2 shown in FIG. 12, the space can be held up to the back side, and the space between the top sheets 22 facing each other at the time of folding for maintaining the uneven shape of the top sheet 22 can be held in a wider area.

<Other embodiments>
FIG. 9 shows a folded absorbent article according to another embodiment of the present invention. That is, the absorbent article is an absorbent article shown in FIG. 1 that includes an exterior body 27 and an absorbent body 23 provided inside the exterior body 27, and the both sides of the absorbent body 23 along the fold lines 33 </ b> A and 33 </ b> B. The parts 30A, 30B, 32A, 32B are folded inward, the bulky part 100 is loosely fitted in the groove part 40, and the front part of the absorber 23 in the front-rear direction is approximately 1/3 in the front-rear direction L. And is folded to the central portion 31 along a second fold line 34 that is positioned between the front enlarged portion 30 and extends in the width direction W, and the rear portion 32 in the front-rear direction approximately 1/3 is It is an absorbent article that is located between the bulky portion 100 and the rear end and is folded to the central portion 31 along a third fold line 35 that extends in the width direction W. In the present embodiment, the central side end of the bulky portion is in a part at the beginning of the rear side constriction of the absorber 23, and the distance J with the rear end of the absorber 23 is substantially the longitudinal length of the non-constricted part on the rear side. The bulky portion is disposed so that the whole is on the center side in the front-rear direction with respect to the folding line 35.

  The absorbent article according to another embodiment of the present invention has a folding configuration in which the absorbent body is disposed along a C-fold fold line extending in the front-rear direction and positioned between the bulky portion and the groove portion in the width direction. By folding the both side portions inward and loosely fitting the bulky portion in the groove portion, the convex portions at the portions that are not desired to be crushed other than the loosely fitted portion on the surface of the absorbent body in contact with the top sheet are not crushed. The front enlarged part is folded into the center part in about 1/3 in the front-rear direction, and the tri-fold tip of the part that becomes the surface in contact with the front body when mounted is opposed to the bulky part that is already C-folded, and the tri-fold tip in the front-rear direction A certain amount of space is ensured between the part and the crease, and the top sheet convex part is prevented from being crushed when the package is stored. Furthermore, the absorbent article which is folded in the front-rear direction by folding the rear part into the center part in about 1/3 in the front-rear direction, the last folding facing surface is the outer sheet outer surface and the rear enlarged part top sheet surface, The bulky portions do not directly face each other, and it is possible to avoid crushing the top sheet convex portion due to the bulky portions.

  Thus, the present invention prevents a decrease in the absorption speed of the absorber, and the convex portion of the absorber surface that contacts the top sheet of the portion that becomes the surface that contacts the front body F and the top sheet of the back body B that contacts the buttocks when worn. The absorbent article which avoids crushing of a skin and prevents the fall of skin and a skin trouble is provided.

  The pad 2 which is other embodiment of the absorbent article of this invention is demonstrated with reference to the plane schematic diagram (inner surface side) of the absorbent article of the expansion | deployment state shown in FIG. In another embodiment, the number of the groove portions 40 is one. Two grooves have a surface area that comes into contact with urine, and the absorption performance increases, and if there are two grooves, the pad folds into a W shape, so that the mountain portion can easily fit into the urination port. Although it is preferable, one may be provided at the approximate center in the width direction as in another embodiment shown in FIG.

  When the number of the groove portions is one, the bulky portion 100A on one side is first loosely fitted into the groove portion 40, and then the other bulky portion 100B is folded inward so as to further overlap the groove portion 40 position, thereby completing the C-fold. (See FIG. 11). In this case, the bulky portion of the surface in contact with the top sheet to be further stacked is in direct contact with the back sheet, and the uneven surface of the surface in contact with the top sheet is not directly pressed, so the almost same effect can be obtained, but the groove is 2 Since the surface area of the book in contact with urine increases and the absorption performance increases, two grooves are more preferable overall.

  The present invention can be used for absorbent articles.

DESCRIPTION OF SYMBOLS 1 Pad 2 Pad 21 Back sheet 22 Top sheet 23 Absorber 26 Absorber core 27 Exterior body 30 Front part 30A Front enlarged part 30B Front enlarged part 31 Center part 32 Rear part 32A Rear enlarged part 32B Rear enlarged part 33A Folding line 33B Folding line 34 2nd fold line 35 3rd fold line 40 Groove part 40A Groove part 40B Groove part 41 Convex part 100 Bulky part 100A Bulky part 100B Bulky part L The front-back direction W The width direction

Claims (2)

In an absorbent article comprising an exterior body and an absorbent body provided inside the exterior body,
The absorbent body is formed of a liquid-permeable top sheet, a liquid-impermeable back sheet, an absorbent core made of pulp fibers and an absorbent polymer provided between the top sheet and the back sheet, and the absorption The body has a region where a convex portion is formed on the top sheet,
In the front-rear direction, a front enlarged portion extending in the width direction from the intermediate portion of the absorber is formed at the front portion of the absorber, and the width direction from the intermediate portion of the absorber is formed at the rear portion of the absorber. Forming an enlarged portion after extending to
On both sides of the rear enlarged portion, a bulky portion projecting inward is provided,
The absorbent body is provided with a groove portion extending in the front-rear direction at a predetermined interval in the width direction,
The height of the bulky part is formed higher than the height of the groove part,
When the both sides of the absorber are folded inward along a folding line that is positioned between the bulky part and the groove part in the width direction and extends in the front-rear direction, the bulky part is loosely fitted into the groove part. An absorbent article characterized by that. Along the fold line, both side portions of the absorber are folded inward, and the bulky portion is loosely fitted into the groove portion,
The front part of the absorber approximately 1/3 in the front-rear direction is folded in the center part along a second fold line that extends between the bulky part and the front enlarged part in the front-rear direction and extends in the width direction. ,
The rear part of approximately 1/3 in the front-rear direction is folded to the center part along a third fold line that is positioned between the bulky part and the rear end in the front-rear direction and extends in the width direction. Absorbent article.

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