TWI659732B - Absorbent article - Google Patents

Abstract

The present invention is an absorbent article (1) having an absorbent body (12). The absorbent article (1) includes a groove portion (20) which is disposed at least in the lower portion (1B) of the strand under the wearer's strand, and is provided in the absorbent body (12) in the longitudinal direction; the elastic portion ( 41), which is disposed at least in the lower portion of the strand (1B) at a position overlapping the absorbent body (12) in the thickness direction, and is provided in the longitudinal direction; the first absorbent body portion (121) is disposed on the absorbent body (12) The groove portion (20) is provided, and the second absorber portion (122) includes the groove portion (20) in the absorber (12) along the extending direction of the groove portion (20). The extended region (R) has a smaller weight per unit area than the first absorbent body portion (121).

Description

Absorbent article

The present invention relates to an absorbent article such as a diaper or a sanitary napkin.

It is known that an absorbent body which is elongated in the longitudinal direction of the abdomen side and the back side of the wearer is provided on the absorbent article. By the absorbent body, the excreted urine or the blood of the menstrual blood or the like is absorbed. However, if the absorbent body is irregularly bent or twisted, the touch or the liquid absorbing property of the wearer may be lowered, and the wearer's comfort may not be ensured. For example, the portion of the absorbent body that is placed under the wearer's strand is the main part of the excreted liquid. Therefore, it should be tightly attached to the wearer. However, it is easily deformed by the foot and is sometimes deformed. Will greatly damage the comfort of the wearer.

Therefore, a technique has been developed in which the absorbent article is bent and held in a predetermined shape in the case where the absorbent article is attached to the wearer. For example, an absorbent article is provided which is provided with an elastic member which shrinks the absorbent body in the longitudinal direction in addition to the groove portion of the lower portion of the absorbent body which is recessed in the longitudinal direction. According to this absorbent article, since the bending of the absorbent body is guided by the groove portion, the absorbent body can be bent into a predetermined shape. Further, since the elastic member is raised toward the skin side of the wearer by the elastic member, the absorbent body can be held in a bent state (see Patent Document 1).

[Previous Technical Literature] [Patent Literature]

Patent Document 1: Japanese Patent Laid-Open No. 2015-66308

As described above, if the groove is used to guide the bending of the absorber, the absorber can be bent into a predetermined shape. However, in the case where the groove portion is not provided in the front piece or the rear piece of the absorbent body, the front piece or the rear piece cannot guide the bending of the absorbent body, which may act against the resistance of the bending, thereby hindering the bending of the absorbent body. Hey. Therefore, there is still room for improvement in improving the comfort of the wearer.

The absorbent article of the present invention has been invented in view of the above problems, and one of its objects is to ensure the comfort of the wearer. Further, the present invention is not limited to the above-described objects, and the effects and effects derived from the respective configurations shown in the "embodiments" described later, and which are not available in the prior art, are obtained as the other objects of the present invention. Also has a seat.

(1) The absorbent article disclosed herein has an absorbent body.

The absorbent article includes: a pair of groove-shaped portions which are disposed at least in a lower portion of the strand under the wearer's strand and are provided in the absorbent body in a longitudinal direction; and a pair of elastic portions, at least The lower portion of the strand is provided to extend in the longitudinal direction in a position overlapping the absorbent body in the thickness direction; the first absorbent body portion is provided with the groove portion in the absorbent body; and the second absorbent body a portion including the region in which the groove portion is virtually extended in a direction in which the groove portion extends in the absorber; The weight per unit area is smaller than that of the first absorbent body.

In other words, in the absorbent body, the portion where the groove portion is not provided is a portion where the groove portion is provided, and the weight per unit area can be suppressed. Further, the second absorber portion is provided adjacent to the first absorber portion on the end portion side in the longitudinal direction.

(2) Preferably, the first absorber portion is disposed in the center of the longitudinal direction of the absorber.

(3) Preferably, the second absorber portion is disposed on one side in the longitudinal direction with respect to the first absorber portion.

(4) Preferably, the second absorber portion is disposed on both sides of the longitudinal direction with respect to the first absorber portion.

(5) Preferably, the second absorbent body portion has a smaller dimension in the thickness direction than the first absorbent body portion.

(6) Preferably, the second absorber portion has a lower density than the first absorber portion.

(7) Preferably, the groove portion is formed by compression of the absorber.

(8) Further, it is preferable that the elastic portion is disposed outward in the width direction from the pair of the groove portions.

(9) In addition to the above, the absorbent article is provided with a front sheet, a lower portion and a rear sheet in the longitudinal direction. Moreover, it is preferable to have an adhesive tape which is protruded in the width direction from the rear sheet, and a gas permeable front patch which is adhered to the adhesive tape Pasted and adhered to the side of the front sheet closest to the non-skin side.

(10) Preferably, the front patch is laminated so as to overlap at least a part of the second absorber portion.

According to the absorbent article of the present invention, the resistance of the second absorbent body portion to the bending of the absorbent body can be suppressed, so that the groove portion of the first absorbent body portion can surely bend the absorbent body, so that the elastic portion can maintain the bending. Thereby, the comfort of the wearer can be improved.

1‧‧‧ diapers (absorbent articles)

1A‧‧‧Previous film

1B‧‧‧ lower part

1C‧‧‧After

2‧‧‧Adhesive tape

3‧‧‧Pre-Patch

10‧‧‧ side film

11‧‧‧Top film

12‧‧‧ pads (absorbers)

13‧‧‧ Back film

14‧‧‧Wraps

20‧‧‧Indentation (groove)

31‧‧‧Support wrinkles

32‧‧‧Three-dimensional wrinkles

33‧‧‧ leg wrinkles

41‧‧‧First elastic member (elastic part)

42‧‧‧Second elastic member

43‧‧‧ Third elastic member

51, 52‧‧‧V Department

121‧‧‧First pad part (first absorber part)

122‧‧‧Second pad part (second absorber part)

C‧‧‧Center line in the width direction

R‧‧‧Extended area

Figure 1 is a plan view of a diaper (absorbent article) being unfolded.

Figure 2 is a perspective view showing the diaper of Figure 1 in an exploded view.

Fig. 3 is a cross-sectional view showing a main portion of the diaper of Fig. 1 (a cross-sectional view taken along line α-α of Fig. 1).

Fig. 4 is a cross-sectional view showing the main part of the diaper in a loaded state.

An absorbent article as an embodiment will be described with reference to the drawings. The embodiments described below are merely illustrative, and are not intended to exclude various modifications or techniques that are not explicitly described in the following embodiments. Various modifications can be made without departing from the spirit and scope of the invention. In addition, trade-offs may be selected as needed or may be combined as appropriate.

The absorbent article of the present embodiment is a sanitary article that is attached to a wearer to absorb liquid such as urine or menstrual blood. Examples of the absorbent article include a sticky type or a pants type diaper (so-called "disposable diaper"), an anti-diaper, and a physiology. Use sanitary napkins, sanitary pads, etc. In the following embodiments, as the absorbent article, a pasting type diaper is exemplified.

In the present embodiment, the diaper has a direction in which the front piece and the back piece are connected in a longitudinal direction, wherein the front piece is disposed opposite to the wearer's abdomen, and the rear piece is opposed to the back. And configuration. A lower portion is disposed between the front piece (one side in the longitudinal direction) and the rear side (the other side in the longitudinal direction) (the center in the longitudinal direction), and the lower portion of the strand is disposed under the wearer's strand (Configured against the stocks) In addition, when the diaper is attached to the wearer (hereinafter, simply referred to as "sold state"), the side facing the wearer's skin (inside the state in which it is attached) is set as the skin surface. On the side, the opposite side of the skin side (outside in the loaded state) is set to the non-surface side. Further, the direction in which the skin side and the non-surface side are joined is defined as the thickness direction, and the direction orthogonal to both the longitudinal direction and the thickness direction is defined as the width direction. Moreover, the observation from the thickness direction is made into a plan view.

[I. One embodiment] [1. Diapers] [1-1. Basic composition]

First, the basic configuration of the diaper 1 will be described with reference to Figs. 1 and 2 . This diaper 1 is symmetrically formed with reference to the center line C in the width direction. In addition, in FIG. 2, the symbol of the center line of the width direction of each member is shown, and the symbol of each member is added with the mark after the symbol "C". The diaper 1 is roughly divided into three regions of the front sheet 1A, the lower portion 1B, and the rear sheet 1C in the longitudinal direction.

The diaper 1 is provided with an adhesive tape 2 protruding in the width direction in the back sheet 1C, and a front patch 3 is provided on the side closest to the non-skin side of the front sheet 1A (in FIG. 1) Shown in dotted lines). Here, the patch 3 is used before the gas permeability. The diaper 1 can be attached to the wearer by adhering the adhesive tape 2 to the front patch 3. Further, the width direction dimension of the lower portion 1B of the strand is set to be slightly larger than the size between the root portions of the legs of the ordinary wearer. Therefore, in the attached state, the lower portion 1B of the strand that is sandwiched in the width direction is in a state of being bent. In this state, a crease is extended along the longitudinal direction.

Next, the sheet constituting the diaper 1 will be described with reference to Figs. 1 to 3 . The diaper 1 is provided with an absorbent body 12 (shown by a thick broken line in Fig. 1) which spans the front piece 1A, the lower part 1B and the rear piece 1C, and is elongated in the longitudinal direction. In Figs. 1 and 2, the absorbent body 12 having a smaller width direction in the strand portion 1B than the front sheet 1A and the back sheet 1C is exemplified. However, it is also possible to use the absorber 12 having a constant width in the width direction.

The absorbent body 12 is a member that absorbs and retains the liquid excreted from the wearer. Since the absorber 12 is a mat shape in this example, it is referred to as "pad 12" in the following description, but the shape of the absorber is not limited to a mat shape, and various shapes known in the art may be employed. . For example, the pad 12 may be formed by coating (wrapping) a core material with a cover sheet which is mixed with a highly water-absorbent resin in a pulverized or defibrated pulp (so-called "small fluff pulp") (so-called The SAP (Superabsorbent Polymer) is also known as a superabsorbent polymer or a superabsorbent polymer.

The various sheets described below are laminated on the skin side and the non-surface side with respect to the pad 12. A topsheet 11 is laminated on the skin side of the pad 12. The top sheet 11 is disposed in the diaper 1 on the side closest to the skin surface. In order for the pad 12 to absorb the liquid excreted from the wearer, the topsheet 11 has a property of permeating the liquid (liquid permeability). Further, the top sheet 11 covers the skin side of the pad 12.

Further, the side sheets 10 are provided on the width direction side with respect to the top sheet 11 and the pad 12, respectively. The side panel 10 is the same as the topsheet 11 and is configured in the diaper 1 On the side closest to the skin surface. In order to prevent leakage of the discharged liquid, the side panel 10 has a property of not allowing liquid to permeate (non-liquid permeability).

A back sheet 13 is laminated on the non-face side of the pad 12. A cover sheet 14 is laminated on the non-face side of the back sheet 13. In order to prevent leakage from the pad 12, the back sheet 13 is non-liquid permeable. This back sheet 13 is covered with a pad 12 from the non-face side. For example, the back sheet 13 may be a thermoplastic resin sheet such as polyethylene (PE) or polypropylene (PP).

As shown in FIGS. 1 and 2, the cover sheet 14 is disposed on the lowermost side of the lower portion 1B and the rear sheet 1C of the diaper 1 on the side closest to the non-skin surface. The cover sheet 14 is provided to reinforce the back sheet 13 and to improve the tactile sensation (for example, hand touch), and covers the back sheet 13 from the non-surface side. Further, the cover sheet 14 is not limited to a single layer structure, and may have a multilayer structure including an inner cover sheet and an outer cover sheet.

A front patch 3 is adhered to the non-face side of the cover sheet 14. In the past, the patch 3 is combined with the adhesive tape 2 to form a fastening mechanism, and the adhesive tape 2 is disposed on each of both end portions in the width direction of the back sheet 1C. In FIGS. 1 and 2, two adhesive tapes 2 are provided on both sides in the width direction of the back sheet 1C. However, it is sufficient to provide an adhesive tape 2 at least on both sides in the width direction. These adhesive tapes 2 extend outward in the width direction from both edge portions of the back sheet 1C.

In the present embodiment, as the fastening mechanism for fixing the adhesive tape 2 and the front patch 3, a surface fastener which is fixed by mechanical bonding of a hook member (male member) and a ring member (parent member) can be used. The surface fastener is formed by a combination of a hook material having a plurality of protrusions (for example, a hook shape or a mushroom shape) on the surface and a ring material having a ring-shaped fiber disposed on the surface. That is, the hook material is provided in any of the adhesive tape 2 and the front patch 3, and the other is provided with a loop material. By using the surface fastener, the hook material and the ring material can be made into a peelable state and can be firmly adhered, and can also be used repeatedly. However, it can also Apply an adhesive or adhesive tape to the fastening mechanism.

[1-2. Detailed composition]

Next, the detailed configuration of the diaper 1 will be described with reference to Figs. 1 to 3 . In the attached state, a structure for bending the strand lower portion 1B and holding it in a predetermined shape (hereinafter referred to as a "bending holding structure") will be described. Furthermore, since the irregular bending or twisting of the lower portion 1B causes the wearer's comfort to be lowered, the diaper 1 is provided in order to ensure the comfort of the wearer by bending the lower portion 1B into a predetermined shape. Bend the construction. As this bending holding structure, an embossing portion 20 (groove portion) for bending the shape of the lower femoral portion 1B into a predetermined shape is provided, and a support wrinkle for retaining the shape of the lower portion 1B of the strand which is bent into a predetermined shape is provided. 31. In addition to this, the pad 12 is provided with a configuration for reliably bending the lower portion 1B of the strand portion into a predetermined shape by the embossing portion 20.

<embossing department>

The embossing portion 20 is recessed in the longitudinal direction of the lower portion 1B and is at least one pair (two). Further, the embossed portion 20 is not provided in the front sheet 1A or the rear sheet 1C. The top sheet 11 and the pad 12 are provided with an embossing portion 20. That is, the embossing portion 20 is disposed on the skin side of the diaper 1. Further, the embossed portion 20 may be provided at least on the pad 12 or may not be provided on the top sheet 11.

This embossing portion 20 can be recessed (imprinted) by locally pressing (compressing) the pad 12 on which at least the top sheet 11 is laminated. In this case, the pad 12 provided with the nip portion 20 is in a state of being compressed (densified). In other words, the embossed portion 20 is formed by compression of the pad 12. In Figures 1 and 2, an example is shown. A pair of linear embossed portions 20 are symmetrically arranged with the center line C in the width direction as a reference and which are parallel to each other. However, the embossed portion 20 may have a shape that is separated or approximated from one side to the other side in the longitudinal direction, or may have another shape such as an arc shape or a wave shape. Further, three or more embossing portions 20 may be provided.

<Support wrinkles>

The support wrinkles 31 are portions that are supported by the pad 12 to be raised toward the skin side in the loaded state. The support wrinkles 31 are disposed on the outer side in the width direction of the embossed portion 20. Here, the support wrinkles 31 are disposed in a region of the lower portion 1B of the strand and at least a part of the thickness direction (in a plan view) overlapping the pad 12 . Further, in the support wrinkles 31, the wrinkled diaper 1 is extended in the longitudinal direction. Here, support wrinkles 31 are provided along the front piece 1A, the lower part 1B, and the back piece 1C.

The support wrinkles 31 are provided in a pair and are respectively formed by a first elastic member 41 (elastic portion, which is shown by a two-dot chain line in FIG. 1). The first elastic member 41 is disposed in the region of the lower femoral portion 1B and at least partially overlapping the pad 12 in a plan view, and is disposed on the outer side in the width direction of the embossed portion 20, and along the support wrinkles 31. Long-side direction setting. Here, the first elastic member 41 is disposed in parallel with the nip portion 20. This first elastic member 41 is provided in such a manner that the pad 12 is contracted in the longitudinal direction. Specifically, a first elastic member 41 is interposed between the back sheet 13 and the cover sheet 14, and the sheets 13 and 14 and the first elastic member 41 in an extended state are located at least in the range of the lower portion 1B of the strand. The parts are fixed to each other by adhesive bonding or sewing. Therefore, the sheet bodies 13, 14 are creased by the elastic force of the first elastic member 41 in the contracting direction, so that the pad 12 is contracted in the longitudinal direction.

In addition to the above-mentioned support wrinkles 31, the diaper 1 is also provided with a stand Body wrinkles 32 and leg folds 33. The three-dimensional gathers 32 are provided to prevent the discharged liquid from leaking outward in the width direction. In the three-dimensional gathers 32, the inner edge portion in the width direction of the side panel 20 is erected on the skin side by the second elastic member 42 (shown by a broken line in FIGS. 1 and 2) and is wrinkled. The leg gathers 33 are provided to improve the tracking of the wearer's foot. The leg gathers 33 are protruded in the width direction, and the outer edge portions in the width direction of the side sheets 20, the outer edge portions in the width direction of the wrapping sheet 14, and the outer edge portions in the width direction of the back sheet 13 are borrowed. It is creased by the third elastic member 43 (shown by a broken line in Fig. 1).

In FIG. 1 and FIG. 2, three first elastic members 41, one second elastic member 42 each provided in one side and one side in the width direction, and three third elastic members each provided are exemplified. Member 43. However, depending on the width direction region of the wrinkles 31, 32, 33 designed in the diaper 1 or the elastic force (contraction force) required for the auxiliary wrinkles 31, 32, 33, etc., various numbers, elastic forces or the like may be employed. Kinds of elastic members 41, 42, 43. As the elastic members 41, 42, 43, for example, a rubber yarn, a natural rubber, a stretch film, or the like can be used.

<pads>

However, the pad 12 is roughly divided into a first pad portion 121 (first absorber portion) disposed on the lower portion 1B and the rear plate 1C, and a second pad portion 122 disposed on the front piece 1A (second Absorbing body). These pad portions 121 and 122 are adjacent to each other in the longitudinal direction. The embossing portion 20 is provided in the first pad portion 121 disposed in the lower portion 1B of the strand. On the other hand, the embossed portion 20 is not provided in the second pad portion 122. However, a region (hereinafter referred to as "extension region") R in which the embossed portion 20 is virtually extended in the extending direction (the direction in which the embossing portion 20 is extended) is included in the second pad portion 122. In other words, the embossing portion 20 The extended region R that can be enlarged by the crease is included in the second pad portion 122.

Therefore, in order to bend the strand lower portion 1B into a predetermined shape by the embossing portion 20 by the suppression of the resistance against the bending of the second pad portion 122, the pad 12 of the present invention is applied to each region ( Part) Adjust the weight per unit area. Specifically, the weight per unit area of the second pad portion 122 is smaller than the weight per unit area of the first pad portion 121. For example, by setting the amount of the forming material of the second pad portion 122 to be smaller than that of the first pad portion 121, the weight per unit area of the pad portions 121 and 122 can be adjusted. In this case, the second pad portion 122 has a smaller dimension in the thickness direction than the first pad portion 121 except the embossed portion 20.

Further, if the second pad portion 122 is formed of a molding material having a smaller specific gravity than the first pad portion 121, the pad portion can be adjusted even if each of the pad portions 121 and 122 laminates the molding materials with an equal thickness. The weight per unit area of 121, 122. In this case, the second pad portion 122 is lower in density than the first pad portion 121. In addition, "weight per unit area" means the mass per unit area in a plan view, and "density" means the mass per unit volume.

In addition, it is not limited to the pad 12 in which the first pad portion 121 and the second pad portion 122 are integrally formed, and the pad 12 for forming the pad portions 121 and 122 may be used. Furthermore, the second pad portion 122 overlaps the front patch 3 in a plan view. That is, the front patch 3 is laminated on the second pad portion 122.

[2. Diaper in state]

Next, the lower portion 1B of the loaded state will be described with reference to Fig. 4 . In the mounted state, the lower portion 1B is in a state of being bent into a predetermined shape. Specifically, the cross section in the width direction of the lower portion 1B of the strand is bent into a predetermined shape of a "W" shape. Assume When the portion constituting the "W" is regarded as two V-shaped arrays, one V-shaped portion and the other V-shaped portion are referred to as V-shaped portions 51 and 52. In addition, if the position of the crease is the skin side, it is called the peak fold, and if the position of the crease is the non-face side, it is called the valley fold.

In this state of being mounted, the embossed portion 20 becomes a crease and guides the valley portion of the lower portion 1B of the strand. Specifically, the two lower portions 1B are folded by the two embossed portions 20 as creases to guide the two valley folds. Further, the two nip portions 20 are located at positions corresponding to the respective corner portions of the V-shaped portions 51 and 52. In the lower portion 1B of the strand at this time, the intermediate portion in the width direction of the two nip portions 20 is folded in a reverse V shape by a peak, and the center in the width direction is a crease. In the lower portion 1B of the strand thus bent into a predetermined shape, the supporting pleats 31 formed by the first elastic members 41 are located outward in the width direction of each of the V-shaped portions 51 and 52. By the first elastic members 41 or the support wrinkles 31, the pad 12 is contracted in the longitudinal direction, and the entire femoral lower portion 1B is raised toward the skin side.

[3. Function and effect]

The diaper is constructed as described above, and thus the following effects and effects can be obtained.

(1) According to the diaper 1 of the present embodiment, since the weight per unit area of the second pad portion 122 is smaller than that of the first pad portion 121, the resistance against bending in the second pad portion 122 can be suppressed. In the extended region R of the embossed portion 20 in the second pad portion 122, it becomes easy to follow the crease on the embossed portion 20 and bend, so that the pad 12 can be surely bent in the embossed portion 20. .

Further, the pad 12 is contracted in the longitudinal direction by the first elastic member 41, whereby the pad 12 is raised toward the skin side, so that the pad 12 can be surely held by the embossing portion 20. bending. Thereby, the lower portion 1B of the diaper 1 can be bent and maintained in a predetermined shape in the loaded state, and the touch or liquid absorption can be ensured, and the wearer can be improved. Comfort.

If the embossed portion 20 is extended to the second pad portion 122, the touch to the wearer may be lowered, and the detachment of the waist of the diaper 1 may be hindered. On the other hand, in the diaper 1 of the present invention, since the embossed portion 20 is not provided in the second pad portion 122, the reduction in the comfort of the embossed portion due to the second pad portion 122 can be prevented. In addition, by suppressing the weight per unit area of the second pad portion 122, the material cost of the pad 12 can be suppressed, and the diaper 1 can also be lightweight.

(2) The lower portion 1B of the diaper 1 is disposed opposite to the excretion portion of the wearer. Therefore, compared with the front piece 1A and the rear piece 1C, the required liquid absorption amount is large. Further, since the weight per unit area of the first pad portion 121 is larger than that of the second pad portion 122, the amount of liquid suction can be secured compared to the second pad portion 122. Therefore, the pad portions 121, 122 satisfying the required amount of liquid suction for each portion of the pad 12 can be disposed. According to this, the comfort of the wearer can also be improved.

(3) Alternatively, when the amount of liquid suction required for the first pad portion 121 disposed in the lower portion 1B and the rear plate 1C is larger than that of the second pad portion 122 disposed on the front piece 1A, it may be configured to satisfy The pad portions 121 and 122 which absorb the amount of liquid required for each portion of the pad 12 can further improve the comfort.

(4) If the thickness of the second pad portion 122 is smaller than that of the first pad portion 121, the swelling of the sheet 1A before the diaper 1 can be suppressed. Thereby, the touch or the fit to the wearer's abdomen can be improved. In addition, by improving the grip of the front piece 1A (handholding is easy Degree), and improve the loading of the diaper 1.

(5) If the density of the second pad portion 122 is lower than that of the first pad portion 121, the second pad portion 122 can be more smoothly deformed than the first pad portion 121. Thereby, the pad 12 can be surely bent into a predetermined shape in the mounted state, and the traceability of the second pad portion 122 to the wearer can be improved.

(6) The embossed portion 20 which is extended in the longitudinal direction is formed by compression of the pad 12, and the first pad portion 121 is compressed. Therefore, the rigidity of the embossed portion 20 can be increased in the first pad portion 121. Thereby, the first pad portion 121 can reinforce the longitudinal direction by the embossing portion 20. By this reinforcement, the formation of the crease extending in the width direction can be suppressed in the first pad portion 121. According to this point, the lower portion 1B can also be surely bent into a predetermined shape.

(7) Since the support wrinkles 31 and the first elastic member 41 are disposed on the outer side in the width direction of the pair of embossed portions 20, the outer side of the valley fold of the embossed portion 20 can be lifted toward the skin side. The high mode adds potential energy to the first pad portion 121, so that the bending of the predetermined shape can be surely maintained.

(8) In addition to this, since the patch 3 has air permeability before the adhesive tape 2 is pasted, the sultry heat of the diaper 1 can be suppressed.

(9) The weight per unit area of the patch 3 is smaller than that of the first pad portion 121, that is, it is laminated on the second pad portion 122 having high air permeability. Therefore, the decrease in the air permeability of the front patch 3 can be suppressed, and the wearer's comfort can be ensured.

[II. Modifications]

Finally, another modification of this embodiment will be described. For example, the second pad portion 122 may have a weight per unit area of at least the extended region R smaller than a weight per unit area of the first pad portion 121. That is, the second pad portion 122 can also suppress a part of the weight per unit area without using the entire area. In this case, the amount of liquid suction of the second pad portion 122 can be ensured, and the pad can be surely bent into a predetermined shape.

Further, the support wrinkles 31 and the first elastic members 41 are not limited to being symmetrically arranged in the width direction, and may be extended in the longitudinal direction in the center in the width direction. In this case, it is easy to bend the diaper 1 along the center line C in the width direction, and the wearer's comfort can be improved. Alternatively, the support wrinkles 31 and the first elastic members 41 may be disposed at positions overlapping the embossed portion 20 in plan view, or may be disposed on the inner side in the width direction of the embossed portions 20 .

Further, the embossed portion 20 may be provided at a portion of the front sheet 1A or the rear sheet 1C. Further, instead of the embossing portion 20 or the pad 12, a groove portion that reduces or penetrates the corresponding portion of the pad 12 may be recessed. Further, the embossed portion 20 may not be provided on the non-surface side of the pad 12, or may be provided on the skin side and the non-surface side of the pad 12. Further, the front patch 3 may be laminated so as to overlap at least a part of the second pad portion 122 (at least partially repeated in a plan view).

In addition to this, the first pad portion may be disposed in the front piece 1A and the lower portion 1B, and the second pad portion may be disposed in the rear piece 1C. In other words, the second pad portion may be disposed in the pad and on the other side in the longitudinal direction with respect to the first pad portion. In this case, it is possible to improve the comfort of the wearer who requires more liquid absorption in the front sheet 1A than in the rear sheet 1C. Alternatively, the first pad portion may be disposed in the lower portion 1B of the strand, and the second pad portion may be disposed in the front sheet 1A and the rear sheet 1C. In other words, the second pad portion may be disposed in the pad and on both sides in the longitudinal direction with respect to the first pad portion. In this case, not only can The pad is surely bent into a predetermined shape, and the forming material of the pad can be further reduced, and the material cost can be further reduced, thereby achieving a lighter weight.

Claims (22)

An absorbent article comprising a front piece, a lower part and a rear piece in the longitudinal direction, and having an absorbent body, characterized in that it comprises: a pair of groove-shaped parts, which are disposed at least in the wearer The lower portion of the strand below the strand is provided in the absorbent body in the longitudinal direction; the first absorbent body portion is provided with the groove portion in the absorbent body; and the adhesive tape is protruded in the width direction Provided on the rear sheet; the front patch, which is adhered to the adhesive tape, and adhered to the side of the front sheet which is closest to the non-skin surface; and a pair of elastic portions, etc., at least in the lower portion of the strand, in the thickness direction The position overlapping with the absorber is extended from the lower end side of the front patch toward the rear side in the longitudinal direction, and is attached in an extended state. The absorbent article according to claim 1, further comprising: a second absorbent body, wherein the absorbent body includes a region in which the groove portion is virtually extended in a direction in which the groove portion extends, and each unit The area weight is smaller than the first absorber portion. The absorbent article according to claim 1, wherein the first absorbent body portion is disposed in the center of the longitudinal direction of the absorbent body. The absorbent article according to claim 2, wherein the first absorbent body portion is disposed in the center of the longitudinal direction of the absorbent body. The absorbent article according to claim 2, wherein the second absorbent body portion is disposed on one side in the longitudinal direction with respect to the first absorbent body portion. The absorbent article according to claim 4, wherein the second absorbent body portion is disposed on one side in the longitudinal direction with respect to the first absorbent body portion. The absorbent article according to claim 2, wherein the second absorbent body portion is disposed on both sides of the longitudinal direction with respect to the first absorbent body portion. The absorbent article according to claim 4, wherein the second absorbent body portion is disposed on both sides of the longitudinal direction with respect to the first absorbent body portion. The absorbent article according to claim 2, wherein the second absorbent body portion has a smaller dimension in a thickness direction than the first absorbent body portion. The absorbent article according to claim 6 or 8, wherein the second absorbent body portion has a smaller dimension in a thickness direction than the first absorbent body portion. The absorbent article according to claim 2, wherein the second absorbent body portion has a lower density than the first absorbent body portion. The absorbent article of claim 10, wherein the second absorbent body portion has a lower density than the first absorbent body portion. The absorbent article of claim 1, wherein the groove-like portion is formed by compression of the absorbent body. The absorbent article of claim 12, wherein the groove portion is formed by compression of the absorbent body. The absorbent article according to claim 1, wherein the elastic portion is disposed outward in the width direction from the pair of the groove portions. The absorbent article according to claim 14, wherein the elastic portion is disposed outward in the width direction from the pair of the groove portions. The absorbent article of claim 2, wherein the front patch is laminated so as to overlap at least a portion of the second absorbent body. The absorbent article of claim 16, wherein the front patch is laminated so as to overlap at least a portion of the second absorbent body. The absorbent article according to claim 1, further comprising: a top sheet laminated on a skin side of the absorbent body; wherein the top sheet is provided with the groove portion. The absorbent article according to claim 18, further comprising: a top sheet laminated on a skin side of the absorbent body; and the top sheet is provided with the groove portion. The absorbent article according to claim 19, wherein the groove-like portion is formed by compression of the absorbent body in which the top sheet is laminated. The absorbent article of claim 20, wherein the groove portion is formed by compression of the absorbent body in which the top sheet is laminated.