JP6122695B2 - Absorbent articles - Google Patents

Description

  The present invention relates to an absorbent article such as a urine collecting pad used by being attached to underwear.

  Conventionally, disposable diapers have been used as absorbent articles that absorb urine as excretory fluid. This diaper includes an absorbent core formed of a liquid absorbent material such as pulp fiber, a liquid-permeable surface sheet that covers the absorbent core from the skin side in the thickness direction, and a liquid that covers the core from the non-skin side. And an impermeable back sheet. Further, the developed shape of the diaper has a substantially hourglass shape having a longitudinal direction, a width direction, and a thickness direction. That is, the central part of the longitudinal direction is constricted in the width direction. The constricted part is applied to the wearer's crotch as the crotch part, the front part in the longitudinal direction from the crotch part is applied to the lower abdomen of the wearer as the front body, and the rear side in the longitudinal direction from the crotch part The part is applied to the wearer's buttocks as the back body, and is thus worn on the lower body of the wearer. Usually, when a diaper is worn, clothing such as trousers and skirt is directly put on the diaper, that is, the diaper is an absorbent article used instead of underwear such as pants.

  Patent Document 1 discloses an example of this diaper. FIG. 1A is a schematic plan view of the diaper 101. Moreover, FIG. 1B is BB sectional drawing in FIG. 1A, Comprising: Only the absorptive core 111 is shown. In this example, the planar shape of the absorbent core 111 has a substantially hourglass shape constricted in the width direction at the position of the central portion in the longitudinal direction. In Patent Document 1, two examples of the configuration of the absorbent core 111 are disclosed. That is, as shown in FIG. 1A, a configuration in which protrusions 113, 113 protruding to the skin side are formed along the respective edges on both sides in the width direction of the absorbent core 111, and as shown in FIG. 1C. In addition to the pair of protrusions 113, 113, a structure in which a protrusion 115 protruding to the skin side is further formed on the front edge in the longitudinal direction of the absorbent core 111 is disclosed. In the former configuration, it is possible to prevent urine leakage in the width direction by damming up the urine staying on the skin side surface of the absorbent core 111 with the protrusions 113 and 113 on both sides in the width direction. Moreover, in the latter configuration, leakage of urine from the front in the longitudinal direction can be further prevented.

JP-T-2006-526438

  By the way, especially in adults, there is a great psychological resistance to wearing diapers, and there are people who cannot use diapers while feeling the necessity.

  Therefore, recently, as a substitute for diapers, a urine pick-up pad that is attached to an undergarment is also used. And if it is such a urine pick-up pad, the usage pattern is similar to a sanitary napkin, that is, the pad is attached to the body by attaching the pad to the underwear and wearing the underwear. Therefore, it can be used with a feeling of use similar to that of a sanitary napkin, and can be used without feeling psychological resistance as in diapers.

  However, urine absorption pads are often used for light incontinence, and those for severe incontinence such as urge incontinence that discharge a large amount of urine at a stroke are not provided on the market. Therefore, when a large amount of urine is discharged all at once, the urine that cannot be absorbed instantaneously by the absorbent core stays on the skin side of the absorbent core, and the urine falls on both sides in the width direction and There is a risk that it will flow to both sides in the longitudinal direction at once and leak from the four sides of the urine collection pad.

  Here, as a means for preventing leakage of urine that cannot be absorbed from all sides, it is conceivable to apply the configuration of the absorbent core 111 disclosed in Patent Document 1 of the above diaper to the urine collection pad.

  However, since neither of the two configurations disclosed in Patent Document 1 is provided with protrusions 113, 113, and 115 protruding to the skin side over the entire circumference of the outer peripheral edge of the absorbent core 111, There is a risk that urine that cannot be immediately absorbed by the absorbent core 111 will leak out of the skin side surface of the core 111 from where there are no protrusions 113, 113, 115.

  2A to 3B are explanatory views of a urine collecting pad 101P of a reference example provided with an absorbent core 111P that can prevent this leakage. 2A is a schematic plan view of the pad 101P in a developed state, and FIG. 2B is a schematic side view of the pad 101P folded in four. 3A is a schematic plan view of the pad 101P that is unfolded into four and unfolded again to the state of FIG. 2A, and FIG. 3B is a cross-sectional view taken along line BB in FIG. 3A.

  As shown in FIG. 2A, in this reference example, the protruding portion 117 is formed over the entire circumference of the outer peripheral edge portion of the absorbent core 111P. Therefore, since the annular protrusion 117 formed over the entire periphery of the outer peripheral edge effectively dams urine staying on the absorbent core 111P, it is considered that high leakage prevention can be achieved.

However, in general, the urine removing pad 101P is folded into four while packing so that the skin side surface becomes the inner peripheral side for the purpose of reducing the dimension in the longitudinal direction (see FIG. 2B). Therefore, depending on the position at which each of the fold lines LB1, LB2, and LB3 related to the quadruple fold is provided, even if the protrusion 117 is provided in an annular shape as described above, It can be divided in the longitudinal direction at each position of the fold lines LB1, LB2, LB3 to form groove-like divided parts D1, D2, D3. As a result, from the divided parts D1, D2, D3, the absorbent core There is a risk that urine staying on 111P leaks to the outside (see FIGS. 3A and 3B). Details are as follows.
For example, as shown in FIG. 2A, the folding lines LB1, LB2, LB3 along the width direction are set so as to cover a pair of projecting portions 117L, 117L located on both sides in the width direction among the annular projecting portions 117. In this case, when the urine absorbing pad 101P is folded into four as shown in FIG. 2B, wrinkles along the width direction are formed at the positions of the folding lines D1, D2, and D3. Then, when the wearer uses the urine removing pad 101P, the wearer opens the fold in four, and when the pad 101P is expanded again in a substantially flat shape as shown in FIG. 3A, the wrinkle opens widely, and thereby the protruding portions 117L, 117L. Is divided in the longitudinal direction. That is, as shown in FIG. 3B, the wrinkles at each position of the folding lines LB1, LB2, and LB3 turn into large groove-shaped dividing portions D1, D2, and D3. And since this groove-shaped parting part D1, D2, D3 is along the width direction like FIG. 3A here, the parting part D1, D2, D3 is the protrusion part 117 in the absorptive core 111P. It may be a flow path that connects the enclosed space SP117 and the outside, and as a result, urine may leak in the width direction from the divided portions D1, D2, and D3.

  The present invention has been made in view of the conventional problems as described above, and its purpose is to effectively prevent leakage to the outside even when a large amount of excretory fluid is discharged at once, such as urgency incontinence. It is possible to prevent the leakage of urine due to the fold line even when the fold line for folding the absorbent article is set so that the dimension in the longitudinal direction of the absorbent article becomes small.

The main invention for achieving the above object is:
An absorbent article used to be attached to underwear to absorb excretory fluid, and having a thickness direction, a width direction, and a longitudinal direction,
The main body of the absorbent article has an absorbent core containing a liquid absorbent material,
The absorbent core has a protruding portion that protrudes toward the skin side on the surface facing the skin side in the thickness direction,
The projecting portions are formed in an annular shape surrounding the longitudinal central portion of the absorbent core, and two projecting portions extending in the width direction as end portions of the longitudinal direction of the projecting portions. Have
The main body portion is a fold line for reducing the size of the absorbent article in the longitudinal direction, and a surface of the absorbent article facing the skin side is an inner peripheral side. The fold line along the width direction for folding the absorbent article is set at at least one position in the longitudinal direction;
When one projecting portion of the two projecting portions is a front projecting portion and the other projecting portion is a rear projecting portion,
At least one fold line among the fold lines is provided at a position on the rear side in the longitudinal direction of the main body portion rather than an edge on the front side in the longitudinal direction in the rear side protruding portion ,
The main body portion is attached to the underwear while the front side in the longitudinal direction corresponds to the abdomen side of the wearer and the rear side corresponds to the back side,
A leak-proof wall portion is provided along the longitudinal direction on the surface of the main body portion facing the skin side in the thickness direction,
The leak-proof wall portion is formed by a sheet-like member provided along the longitudinal direction, and an elastic member fixed to the sheet-like member in an extended state in the longitudinal direction,
When the elastic member contracts from the stretched state, the sheet-like member contracts in the longitudinal direction and rises from the surface of the main body by the contracting force applied to the sheet-like member.
The contraction force is applied to the sheet-like member over the entire length of the second range in the longitudinal direction, and is applied to the sheet-like member in a range on the rear side in the longitudinal direction with respect to the second range. The magnitude of the contracted force being made smaller than the second range;
When the fold line provided at a position on the rear side in the longitudinal direction from the edge is the first fold line,
The first fold line is an absorbent article characterized in that it is included in the range on the rear side .
Other features of the present invention will become apparent from the description of the present specification and the accompanying drawings.

  According to the present invention, even when a large amount of excretory fluid is discharged at once, such as urge incontinence, it is possible to effectively prevent leakage to the outside and to reduce the longitudinal dimension of the absorbent article. Even when a fold line for folding the absorbent article is set, leakage of urine due to the fold line can be reduced.

FIG. 1A is a schematic plan view of a diaper 101 of Patent Document 1 in which protrusions 113 and 113 for damming urine to an absorbent core 111 are provided on both edges in the width direction. FIG. 1B is a plan view of FIG. FIG. 1C is a schematic cross-sectional view of the diaper 101 in which a protruding portion 115 is further provided on the front side in the longitudinal direction of the absorbent core 111. It is a top view. FIG. 2A is a schematic plan view of a developed state of the urine absorption pad 101P in which the protruding portion 117 is provided over the entire outer periphery of the absorbent core 111P, and FIG. 2B is a four-fold view of the pad 101P. FIG. FIG. 3A is a schematic plan view of the urine collecting pad 101P which has been unfolded into four and developed again into a flat shape, and FIG. 3B is a cross-sectional view taken along line BB in FIG. 3A. It is a schematic plan view of the state which developed urine picking pad 1 as an absorptive article concerning this embodiment on a plane. 5A is a cross-sectional view taken along the line AA in FIG. 4, FIG. 5B is a cross-sectional view taken along the line BB in FIG. 4, and FIG. 5C is a cross-sectional view taken along the line CC in FIG. It is the schematic plan view which looked at the urine picking pad 1 from the non-skin side. It is a schematic plan view of the urine removing pad 1 showing the position of the base end portion 41b. FIG. 8A is a schematic plan view showing the urine absorption pad 1 other than the absorbent core 11 as seen through. FIGS. 8B and 8C are a cross-sectional view taken along the line BB and a line CC in FIG. It is sectional drawing, Comprising: It is a figure which shows only the absorptive core 11. FIG. FIG. 9A is a schematic side view of the urine collection pad 1 folded in the longitudinal direction, and FIG. 9B is a schematic plan view of the urine collection pad 1 showing the positions of the three folding lines LB1, LB2, and LB3. It is a schematic plan view of the urine absorption pad 1 for demonstrating the preferable position of 1st and 3rd bending line LB1, LB3. It is a schematic perspective view of the urine removing pad 1, and is a view showing a state where the central portion 1sC of the main body portion 1s of the pad 1 is dented to the non-skin side and the main body portion 1s has a cup shape. It is explanatory drawing of the urine picking pad 1 of the modification concerning this embodiment, Comprising: It is a figure corresponded in BB sectional drawing in FIG. FIG. 13A is a schematic plan view illustrating a urine absorption pad 1 according to another embodiment other than the absorbent core 11, and FIG. 13B and FIG. 13C are cross-sectional views taken along line BB in FIG. 13A, respectively. It is a figure and CC sectional drawing, Comprising: It is a figure which shows only the absorptive core 11. FIG. It is a schematic plan view which shows through things other than the absorptive core 11 among the urine picking pads 1 of other embodiment.

At least the following matters will become apparent from the description of the present specification and the accompanying drawings.
An absorbent article used to be attached to underwear to absorb excretory fluid, and having a thickness direction, a width direction, and a longitudinal direction,
The main body of the absorbent article has an absorbent core containing a liquid absorbent material,
The absorbent core has a protruding portion that protrudes toward the skin side on the surface facing the skin side in the thickness direction,
The projecting portions are formed in an annular shape surrounding the longitudinal central portion of the absorbent core, and two projecting portions extending in the width direction as end portions of the longitudinal direction of the projecting portions. Have
The main body portion is a fold line for reducing the size of the absorbent article in the longitudinal direction, and a surface of the absorbent article facing the skin side is an inner peripheral side. The fold line along the width direction for folding the absorbent article is set at at least one position in the longitudinal direction;
When one projecting portion of the two projecting portions is a front projecting portion and the other projecting portion is a rear projecting portion,
At least one fold line of the fold lines is provided at a position on the rear side in the longitudinal direction in the main body portion rather than an edge on the front side in the longitudinal direction in the rear protruding portion. The absorbent article is characterized.

  According to such an absorbent article, the protruding portion of the absorbent core is formed in an annular shape so as to surround the central portion in the longitudinal direction. Therefore, when a large amount of excretory fluid is discharged at a stroke due to urge incontinence or the like, the excretory fluid that cannot be instantaneously absorbed by the absorbent core can be effectively dammed by the annular protrusion. That is, the excretory fluid can be temporarily stored in the space surrounded by the protrusions. And thereby, it is possible to earn time for the liquid absorption time so that the excretion liquid does not leak from the main body until the absorbent core finishes absorbing the excretion liquid, and as a result, from the longitudinal direction and the width direction. It is possible to effectively prevent leakage of excretory fluid.

  Further, at least one fold line among the fold lines is provided at a position on the rear side in the longitudinal direction with respect to the front edge portion of the rear protruding portion. Therefore, at least in the folding line provided at the position, the protruding portion cannot be divided so as to communicate the space surrounded by the protruding portion with the outside. Details are as follows. First, based on folding at the fold line, even if the fold line is the starting point and the protruding portion is divided at that position to form a groove-shaped dividing portion, the dividing portion is It occurs in the rear projecting portion. And here, this rear side protrusion part is a protrusion part extended in the width direction as an edge part of the rear side of a longitudinal direction among protrusion parts. Therefore, even if a groove-shaped divided portion along the width direction is generated with respect to the rear protruding portion, and the divided portion divides the rear protruding portion in the longitudinal direction, the divided portion is protruded. Since it does not communicate with the space surrounded by the part, the dividing part cannot be a flow path that communicates the space surrounded by the protruding part and the outside. And thereby, the excretory fluid does not leak out from the divided portion, and from this, at least the fold line provided at a position on the rear side in the longitudinal direction from the front edge portion of the rear protruding portion. However, it cannot be the starting point for leakage of excretory fluid. And as a result, according to the above-mentioned composition, the leakage of excretion fluid resulting from a fold line can be reduced as a whole.

  Furthermore, since the protruding portion is formed in an annular shape so as to surround the central portion in the longitudinal direction, the space surrounded by the protruding portion can be continuously and widely formed on both sides of the central position in the longitudinal direction. . And when the excretion liquid after discharge | emission flows through the said space, this excretion liquid can be spread | diffused in the wide range of a longitudinal direction in a comparatively short time. In addition, after the diffusion, the excretory liquid is sequentially absorbed by the absorbent core at the position where it has settled. Therefore, the area of the absorbent core that can contribute to the absorption of excretory fluid as a whole can be increased, and as a result, the amount of absorption per unit time can be increased. Contributes to the improvement of leakage resistance against

Such an absorbent article,
When the fold line is set at a plurality of positions in the longitudinal direction and the fold line provided at a position on the rear side of the longitudinal direction from the edge is the first fold line,
When the absorbent article is bent based on the fold lines at the plurality of positions, the first fold line is preferably a fold line that is bent first among the fold lines at the plurality of positions.

According to such an absorbent article, since the first fold line is bent first, it is easy to bend sharply. As a result, strong wrinkles occur at the same position, and as a result, a large groove is formed when the absorbent article is deployed. There is a risk that a broken part of the shape will occur. However, as described above, even if a groove-shaped dividing portion is largely generated at the position, the dividing portion does not connect the space surrounded by the protruding portion and the outside. Therefore, the leakproofness is not lowered by bending the first fold line first.
On the other hand, the fold lines other than the first fold line are folded after the first fold line, and thus are positioned on the outer peripheral side of the first fold line in the folded absorbent article. It can be bent more gently than a line. For this reason, wrinkles are generated weakly at the same position, and as a result, the split portion generated when the absorbent article is developed becomes relatively light. Therefore, even if this divided part communicates the space surrounded by the protruding part and the outside, it does not cause a large leak. As a result, as a whole, leakage of excretory fluid due to the folding line can be effectively reduced.

Such an absorbent article,
The main body portion is attached to the underwear while the front side in the longitudinal direction corresponds to the abdomen side of the wearer and the rear side corresponds to the back side,
A leak-proof wall portion is provided along the longitudinal direction on the surface of the main body portion facing the skin side in the thickness direction,
The leak-proof wall portion is formed by a sheet-like member provided along the longitudinal direction, and an elastic member fixed to the sheet-like member in an extended state in the longitudinal direction,
When the elastic member contracts from the stretched state, the sheet-like member contracts in the longitudinal direction and rises from the surface of the main body by the contracting force applied to the sheet-like member.
The contraction force is applied to the sheet-like member over the entire length of the second range in the longitudinal direction, and is applied to the sheet-like member in a range on the rear side in the longitudinal direction with respect to the second range. The magnitude of the contracted force being made smaller than the second range;
When the fold line provided at a position on the rear side in the longitudinal direction from the edge is the first fold line,
The first fold line is preferably included in the rear range.

According to such an absorbent article, since bending at the first fold line when the absorbent article is worn is suppressed, a problem that can occur when bending at the first fold line is tight, that is, It is possible to effectively prevent a problem that a large gap is formed between the body and the human body at the position of the first fold line and the leak-proof property is lowered. Details are as follows.
First, the moment arm increases at the standing portion of the sheet-like member. Therefore, a bending moment for bending the main body portion toward the skin side in the thickness direction is strongly generated in the standing portion based on the contraction force of the elastic member. Therefore, if there is a fold line in this standing range, the fold line will be bent. However, regarding this point, in the above configuration, the first fold line is included in the rear side range, and in this range, only a small contractive force is applied to the sheet-like member from the elastic member. Not. Therefore, at the position of the first fold line, the sheet-like member does not substantially stand, and the moment arm does not increase unless it rises. Therefore, a bending moment is not so much generated at the position of the first fold line, and as a result, a situation in which the first fold line is forcibly bent based on the elastic member is effectively prevented. As a result, the portion near the first fold line can be deformed flexibly so as to conform to the shape of the heel portion of the human body, and can be in close contact with the same heel portion. This reduces the gap and improves leakage prevention.

Such an absorbent article,
The main body portion is attached to the underwear while the front side in the longitudinal direction corresponds to the abdomen side of the wearer and the rear side corresponds to the back side,
A leak-proof wall portion is provided along the longitudinal direction on the surface of the main body portion facing the skin side in the thickness direction,
The leak-proof wall portion is formed by a sheet-like member provided along the longitudinal direction, and an elastic member fixed to the sheet-like member in an extended state in the longitudinal direction,
When the elastic member contracts from the stretched state, the sheet-like member contracts in the longitudinal direction and rises from the surface of the main body by the contracting force applied to the sheet-like member.
The contraction force is applied to the sheet-like member over the entire length of the second range in the longitudinal direction,
The third range of the main body portion in the longitudinal direction, including the front protruding portion and continuing from the front protruding portion, includes at least one fold line of the fold lines. And
The fold line included in the third range is preferably included in the second range.

  According to such an absorbent article, the fold line included in the third range is included in the second range. Therefore, at the position of this fold line, the contraction force acts strongly from the elastic member of the standing sheet-like member and the moment arm increases due to the standing, etc. A bending moment to bend toward the skin side in the thickness direction acts strongly. Therefore, the main body portion is easily bent to the skin side by this fold line. And, by this, the portion of the main body portion that is behind the fold line is in close contact with the wearer's crotch with almost no gap, while the main portion of the main body portion that is in front of the fold line is worn. It is possible to adhere to the lower abdomen of the person with almost no gap. Therefore, it is possible to effectively prevent leakage of excretory fluid from the front side in the longitudinal direction.

Such an absorbent article,
When a fold line provided at a position on the rear side in the longitudinal direction in the main body portion than the edge portion is a first fold line,
It is desirable that the first fold line is located on the rear side in the longitudinal direction with respect to the rear protruding portion.

  According to such an absorbent article, since the first fold line is located on the rear side in the longitudinal direction from the rear side protruding portion, a groove-shaped dividing portion is formed on the rear side protruding portion due to the first fold line. Is completely prevented. Therefore, the rear side protruding portion can be brought into contact with the human body with a substantially flat surface having no groove-shaped dividing portion, and the occurrence of a gap between the human body is prevented, and as a result, the rear side protruding portion is The excretory fluid can be reliably dammed to prevent leakage to the outside.

Such an absorbent article,
When a fold line provided at a position on the rear side in the longitudinal direction in the main body portion than the edge portion is a first fold line,
The first fold line is preferably located at the rear protruding portion.

  According to such an absorbent article, since the first fold line is located at the rear protruding portion of the protruding portion, the dimension from the first fold line to the rear end in the longitudinal direction of the main body portion is increased. Can be secured. Therefore, the longitudinal dimension of the absorbent article after folding can be reduced for the size of the dimension in the longitudinal direction of the absorbent article, that is, the absorbent article after folding can be made more compact. can do.

Such an absorbent article,
It is desirable that at least one fold line among the fold lines is provided at a position on the front side in the longitudinal direction in the main body portion rather than an edge on the rear side in the longitudinal direction in the front projecting portion. .

  According to such an absorbent article, at least one fold line among the above fold lines is provided at a position on the front side in the longitudinal direction with respect to the rear edge portion of the front projecting portion. Therefore, for at least the fold line provided at the position, for the same reason as in the case of the first fold line described above, the protruding portion is divided so that the space surrounded by the protruding portion communicates with the outside. It is impossible to end up. And thereby, the excretory fluid does not leak out from the dividing portion, and from this, at least the folding line provided at the front side position in the longitudinal direction from the rear edge portion of the front side protruding portion. In the limited case, it cannot be the starting point for the leakage of excretory fluid. And as a result, according to the above-mentioned composition, the leakage of excretion fluid resulting from a fold line can be reduced as a whole.

Such an absorbent article,
When a fold line provided at a position on the front side in the longitudinal direction in the main body portion than the edge portion is a third fold line,
It is desirable that the third fold line is located on the front side in the longitudinal direction with respect to the front protruding portion.

  According to such an absorbent article, since the third fold line is located on the front side in the longitudinal direction from the front protruding portion, a groove-shaped dividing portion is generated in the front protruding portion due to the third fold line. Is completely prevented. Therefore, the front protruding portion can be brought into contact with the human body with a substantially flat surface having no groove-shaped dividing portion, and the generation of a gap with the human body is prevented. Can be reliably dammed to prevent leakage to the outside.

Such an absorbent article,
The projecting portion has two projecting portions extending in the longitudinal direction as end portions of the projecting portion in the width direction,
It is desirable that the width dimension of the top surface on the skin side of the rear side protruding portion is larger than the width dimension of the top surface on the skin side of the protruding portion.

  According to such an absorbent article, since the width of the skin-side top surface of the rear protruding portion is large, it is easy to set the fold line on the top surface. That is, it becomes easy to set the fold line at a position where the urine leakage due to the fold line can be suppressed, and thereby the degree of freedom in setting the fold line can be improved.

=== This Embodiment ===
FIG. 4 is a schematic plan view showing a state in which the urine absorbing pad 1 as an absorbent article according to the present embodiment is developed on a plane. 5A is a sectional view taken along line AA in FIG. 4, FIG. 5B is a sectional view taken along line BB in FIG. 4, and FIG. 5C is a sectional view taken along line CC in FIG.

As shown in FIG. 4, the urine absorption pad 1 has a longitudinal direction, a width direction, and a thickness direction as three directions orthogonal to each other. And the planar shape prescribed | regulated by the longitudinal direction and the width direction of the urine picking pad 1 has comprised the substantially rectangular shape as an example of vertically long shape.
In the following, with respect to the thickness direction, the side in contact with the human body is also referred to as “skin side”, and the side in contact with underwear is also referred to as “non-skin side”. The longitudinal direction is also referred to as “front-rear direction”, and the width direction is also referred to as “left-right direction”. At the time of mounting on the human body, the front side of the urine collecting pad 1 in the longitudinal direction faces the ventral side of the human body, and the rear side faces the back side of the human body. Moreover, the dimension of the longitudinal direction of the urine picking pad 1 is longer than the dimension of the width direction, and the dimension of the width direction is longer than the dimension of the thickness direction.

<<< Basic configuration of urine removing pad 1 >>>
As shown in FIGS. 4 and 5B, the urine collecting pad 1 has a main body 1s that is attached to the underwear when in use. The main body 1s includes an absorbent core 11 made of a liquid absorbent material that absorbs urine, a liquid-permeable surface sheet 21 that covers the absorbent core 11 from the skin side in the thickness direction, and a non-core core 11. A liquid-impermeable back sheet 31 covering from the skin side.

  The absorbent core 11 is formed by, for example, molding a mixture of liquid absorbent fibers and liquid absorbent granular materials as two types of liquid absorbent materials into a substantially rectangular flat plate shape as an example of a predetermined shape. In this example, pulp fibers are used as the liquid absorbent fibers, and superabsorbent polymers (hereinafter also referred to as SAP) are used as the liquid absorbent granules, but the present invention is not limited to this. For example, cellulose such as cotton, regenerated cellulose such as rayon, semi-synthetic cellulose such as acetate may be used as the former liquid absorbent fiber, and liquid absorbent particles other than SAP may be used as the latter liquid absorbent granular material. A granular material may be used.

  Further, in this example, the liquid absorbent fibers and SAP are mixed at a mixing ratio (weight ratio) of 1: 1, but other mixing ratios may be used, and only one of them is included. You can leave. Further, in addition to the above two kinds of liquid absorbent materials, or in place of one of them, another kind of liquid absorbent material may be mixed. Moreover, in this example, although the absorptive core 11 is not coat | covered with liquid permeable sheets, such as tissue paper, you may coat | cover. Furthermore, although not provided in this example, an appropriate non-woven fabric or tissue paper may be inserted as a liquid-permeable second sheet between the absorbent core 11 and the top sheet 21. Incidentally, as one of the ideas of this embodiment, the shape of the absorbent core 11 can be mentioned, which will be described later.

  As shown in FIGS. 4 and 5B, the top sheet 21 receives urine excreted from the human body, promptly sucks it in the thickness direction, and guides it to the absorbent core 11. For example, the surface sheet 21 is a flat surface of the absorbent core 11. A substantially rectangular sheet larger than the shape is used. For example, a nonwoven fabric such as an air-through nonwoven fabric or a spunbond nonwoven fabric is used as the material of the surface sheet 21, and a thermoplastic resin fiber such as polyethylene or polyethylene terephthalate is used as the constituent fiber of the nonwoven fabric. Moreover, the pressing part E formed by both pressing the surface sheet 21 and the absorptive core 11 together from the skin side of the thickness direction is formed on the skin side surface of the surface sheet 21, thereby the surface sheet 21. And the absorbent core 11 are joined and integrated. In addition, since the formation pattern of this pressing part E also makes one of the devices of this embodiment, this is also mentioned later.

  FIG. 6 shows a schematic plan view of the urine collecting pad 1 as seen from the non-skin side. As shown in FIGS. 6 and 5B, the back sheet 31 is a leak-proof sheet 31 that prevents urine leakage from the non-skin side of the main body 1 s of the urine absorbing pad 1, and the planar shape thereof is the absorbent core 11. It is a substantially rectangular shape that is larger than that. That is, the outer peripheral edge protrudes outward from the absorbent core 11 over the entire circumference. Then, in a state where the absorbent core 11 is placed on the back surface sheet 31, the back surface sheet 31 is joined to the top sheet 21 by heat welding or the like at each end in the longitudinal direction and each end in the width direction, for example. The absorbent core 11 is held between the top sheet 21 and the top sheet 21. Note that the state in which the absorbent core 11 is held between the back sheet 31 and the top sheet 21 corresponds to the main body 1 s of the urine removing pad 1 described above. As a material of the back sheet 31, for example, a film made of a thermoplastic resin such as polyethylene or polyethylene terephthalate is used.

  Further, on the non-skin side surface of the back sheet 31, there are formed anti-slip adhesive portions 33, 33 for attaching the urine collecting pad 1 to the underwear so as not to move. The formation of the anti-displacement adhesive portions 33, 33 is performed, for example, by applying a hot melt adhesive at a predetermined position on the non-skin side surface of the back sheet 31.

  As shown in FIGS. 4 and 5B, the body portion 1s of the urine collecting pad 1 is made to correspond to each end portion in the width direction of the absorbent core 11 for the purpose of preventing urine leakage to the end side in the width direction. A pair of leak-proof wall portions 40, 40 are provided. A pair of leak-proof wall parts 40 and 40 are formed by the side sheets 41 and 41 (equivalent to a sheet-like member) which consist of SMS nonwoven fabric etc. which were water repellent treated, respectively. Each side sheet 41, 41 is provided so as to cover each end portion in the width direction of the surface sheet 21 from the skin side along the longitudinal direction. And it fixes to the surface sheet 21 by the heat welding etc. in the position corresponding to each edge part of the width direction of the absorptive core 11, and, thereby, the base end part 41b is formed. Note that the portion 41f extending from the base end portion 41b to the substantially central side in the width direction is a free end portion 41f, that is, the portion 41f basically serves as the leak-proof wall portion 40. On the other hand, a portion 41 s extending from the base end portion 41 b to the end in the width direction reaches the end edge in the width direction of the urine collecting pad 1, and the portion is overlapped with the top sheet 21 or the back sheet 31. Then, at the same edge, it is joined to the top sheet 21 or the back sheet 31 by heat welding or the like.

  Here, an elastic member 45 such as rubber thread along the longitudinal direction is fixed to the free end portion 41f by a hot melt adhesive in an extended state. Therefore, when the urine absorbing pad 1 is curved in the longitudinal direction so that the topsheet 21 side is the inner peripheral side, the elastic member 45 contracts in the longitudinal direction and the contracting force is applied to the free end portion 41f. The free end portion 41f contracts in the longitudinal direction and stands up from the surface sheet 21, whereby the free end portion 41f functions as the leak-proof wall portion 40. In the example of FIG. 5B, the free end portion 41f and the base end portion 41b are formed of a double-stacked side sheet 41 by folding, and an elastic member 45 is inserted between the double-stacked free end portions 41f. However, it is not limited to this.

  Further, in the schematic plan view of FIG. 7, the base end portion 41b is indicated by hatching, but in this example, the size of the base end portion 41b in the width direction is the front end portion 41b1 in the longitudinal direction and the rear end portion. 41b2 is set to be wide, and on the other hand, the intermediate portion 41b3 between the front end portion 41b1 and the rear end portion 41b2 is set to be narrow so that the center side in the width direction is removed. And by this, the standing height of the leak-proof wall part 40 is preferentially made high in the intermediate part 41b3, and the urine blocking action is optimized, but it is not limited to this. For example, the size in the width direction of the base end portion 41b may be a constant width over the entire length in the longitudinal direction.

  Also, as shown in FIGS. 4, 5A, and 5C, the hot-melt adhesive is such that the front end portion 41fa and the rear end portion 41fb of the free end portion 41f are faced down on the base end portion 41b. For example, the front end portion 41fa and the rear end portion 41fb are non-stand-up portions that do not stand up. Therefore, the contraction force of the elastic member 45 is selectively given only to the intermediate portion 41fm existing between the front end portion 41fa and the rear end portion 41fb of the free end portion 41f, and the intermediate portion 41fm is It shrink | contracts and it stands up as the leak-proof wall part 40. FIG.

  As described above, the basic configuration of the urine absorbing pad 1 according to the present embodiment has been described. However, the urine absorbing pad 1 according to the present embodiment is based on the device made mainly for the absorbent core 11 and is used for urge incontinence. Leakage protection against large volume of urine discharge is enhanced. Further, leakage of urine caused by the folding lines LB1, LB2, LB3 is suppressed based on the device of the positions of the folding lines LB1, LB2, LB3 for folding the urine collecting pad 1 into four at the time of packing. In the following, these two devices will be mainly described. However, as for the improvement of the former leak-proof property, since the device made for the leak-proof wall portion 40 and the device made for the pressing portion E of the surface sheet 21 also contribute effectively, these also explain.

<<< Considerations made on the absorbent core 11 >>>
FIG. 8A is a schematic plan view showing a portion of the urine absorbing pad 1 other than the absorbent core 11 as seen through. 8B and 8C are a BB cross-sectional view and a CC cross-sectional view, respectively, in FIG. 8A, and both drawings show only the absorbent core 11.

  As described above, the planar shape of the absorbent core 11 is substantially rectangular. However, as shown in FIGS. 8A to 8C, the absorbent core 11 has a protruding portion 11P protruding in the skin direction on the skin side surface, and the protruding portion 11P is formed of the absorbent core 11. It is formed continuously over the entire circumference of the outer peripheral edge of the skin side surface. And thereby, the protrusion part 11P is formed in cyclic | annular form so that the center part 11C of the longitudinal direction in the absorptive core 11 may be enclosed.

  Therefore, when a large amount of urine is discharged at a stroke due to urge incontinence or the like, the urine that cannot be absorbed instantaneously by the absorbent core 11 can be effectively dammed by the annular protrusion 11P. That is, urine can be temporarily stored in the space SP11 surrounded by the protruding portion 11P. And by this, it is possible to earn time for the absorption time so that the urine does not leak from the main body portion 1s of the urine collecting pad 1 until the absorbent core 11 has absorbed the urine. Urine leakage from the direction and the width direction can be effectively prevented.

  Moreover, since the protrusion part 11P is formed along the outer periphery part of the absorptive core 11, space SP11 enclosed by the protrusion part 11P is each on the front side and the rear side which are the both sides of the center position CLL of a longitudinal direction, respectively. Widely formed continuously. That is, the space SP11 is continuously present in the absorbent core 11 from the front end portion to the rear end portion in the longitudinal direction. And, after the discharged urine flows through the space SP11, the urine is diffused over a wide range in the longitudinal direction within a relatively short time. Further, after such diffusion, urine is sequentially absorbed by the portion of the absorbent core 11 at the position where it has flowed. Therefore, the area of the absorbent core 11 that can contribute to the absorption of urine as a whole can be increased, and as a result, the amount of absorption per unit time can be increased. Contributes to improved leakage resistance.

  Further, as shown in FIG. 8A, in the annular protrusion 11P, the front half and the rear half in the longitudinal direction have substantially the same shape. Therefore, when attaching the urine collection pad 1 to the underwear, the wearer has mistakenly placed the front side and the rear side of the urine collection pad 1 in the longitudinal direction and attached the urine collection pad 1 in the opposite direction. Even so, based on the substantially symmetrical shape of the protruding portion 11P in the longitudinal direction, the urine removing pad 1 can be worn as it is with the desired leak-proof property without greatly impairing its leak-proof effect. it can. That is, according to the urine removing pad 1, a foolproof effect can also be achieved.

  The protrusion 11P has a pair of first protrusions 11P1 and 11P1 parallel to the longitudinal direction as end portions in the width direction, and is parallel to the width direction as end portions in the longitudinal direction. A pair of second projecting portions 11P2 and 11P2 are arranged in the longitudinal direction. For example, each of the first projecting portions 11P1 and 11P1 has a substantially trapezoidal cross-sectional shape, and the cross-sectional shape is kept constant in the longitudinal direction, and is continuous in parallel with the longitudinal direction. Each of the protruding portions 11P2 and 11P2 also has a substantially trapezoidal cross-sectional shape, and the cross-sectional shape is kept constant in the width direction and is continuous in the width direction.

  Therefore, when the wearer attaches the urine collecting pad 1 to the underwear, even if the wearer is attached to a position shifted in the longitudinal direction from the appropriate position, the pair of first projecting portions 11P1 and 11P1 can play the urine in the width direction. The damming effect is not substantially changed, and thus the expected leakage prevention performance can be achieved even when the position is shifted.

  As described above, the planar shape of the first projecting portion 11P1 is a strip shape parallel to the longitudinal direction, and the planar shape of the second projecting portion 11P2 is a strip shape parallel to the width direction. That is, both the first projecting portion 11P1 and the second projecting portion 11P2 have strip-shaped substantially flat top surfaces 11P1t and 11P2t on the skin side, respectively. Here, the width of each top surface 11P1t and 11P2t The dimension is set to 10 mm or more, for example. And if it sets in this way, the urine which reached | attained to the protrusion part 11P can be blocked reliably. Further, only the second projecting portion 11P2 is set to 10 mm or more, so that bending lines LB1 and LB3 described later can be easily set on the top surfaces 11P2t and 11P2t. That is, it becomes easy to set the fold lines LB1 and LB3 at positions where urine leakage caused by the fold lines LB1 and LB3 can be suppressed, and thus the degree of freedom in setting the fold lines LB1 and LB3 can be improved.

  Further, the protrusion height L11P of the protrusion 11P shown in FIGS. 8B and 8C is desirably set in the range of 0.5 mm to 5 mm, more preferably in the range of 1.5 mm to 3 mm. 2.0 mm is set as a target value. And if it is set to such a range, the problem which may occur when it is less than 0.5 mm, that is, the problem of insufficient space for temporarily storing urine before absorption can be solved, and 5.0 mm The problem which may occur when exceeding, ie, the problem of uncomfortable feeling when contacting the wearer's skin, can be solved.

  Incidentally, in this embodiment, the protrusion height L11P of the protrusion 11P is made constant over the entire circumference of the protrusion 11P. However, the present invention is not limited to this, and the protrusion height L11P of the protrusion 11P depends on the location. May be different. The protrusion height L11P is a height in a no-load state (natural state) where no external force acts on the protrusion 11P. This is the width of the protrusion 11P. The same applies to.

  In some cases, as shown in FIG. 8A, the width dimension of the top surface 11P2t of the second protrusion portion 11P2 may be larger than the width dimension of the top surface 11P1t of the first protrusion portion 11P1. In this way, urine that tends to flow in the longitudinal direction of the urine collecting pad 1 can be reliably dammed up. Further, it becomes easy to set the above-described fold lines LB1 and LB3 on the top surfaces 11P2t and 11P2t, and this also improves the degree of freedom in setting the fold lines LB1 and LB3. In this example, the width of the top surface 11P1t of the first protruding portion 11P1 is 15 mm, and the width of the top surface 11P2t of the second protruding portion 11P2 is 52 mm.

Formation of the absorptive core 11 which has such a protrusion part 11P is based on the basis weight (g / m < ² >) of the liquid absorptive material which is the constituent material of the core 11, and the position on the skin side surface of the absorptive core 11 It is realized by making it differ according to. That is, on the plane whose thickness direction is the normal line direction, the basis weight distribution pattern is such that the basis weight at the position having the protruding portion 11P is larger than the basis weight at the position having no protruding portion 11P. The absorbent core 11 is formed by laminating liquid absorbent materials in the thickness direction based on this distribution pattern.

  And if it is formed in this way, the amount of swelling after absorbing urine will be larger at the position having the protruding portion 11P than at the position surrounded by the protruding portion 11P, which is the position not having the protruding portion 11P. . Therefore, even after the absorption of the urine, the position having the protruding portion 11P protrudes larger toward the skin side, and thereby the space SP11 surrounded by the protruding portion 11P can be maintained in a wide state. As a result, even when urine is discharged next time, urine that cannot be absorbed instantaneously by the absorbent core 11 can be temporarily stored in the space SP11 without any problem.

  Here, desirably, the basis weight of the position having the protrusion 11P is set to 1.2 to 4.0 times the basis weight of the position not having the protrusion 11P. And if it is set in this way, the following problems can be effectively avoided. First, in the case of less than 1.2 times, it becomes difficult to ensure a large protrusion height L11P of the protruding portion 11P and it becomes difficult to achieve sufficient leakage prevention, and when it exceeds 4.0 times Causes a problem that the difference in rigidity between the position having the protruding portion 11P and the position not having the protruding portion 11P is increased, and it becomes easy to feel uncomfortable when the urine collecting pad 1 is worn. If it is set to 2 to 4.0 times, these problems can be avoided.

By the way, in terms of specific numerical values, for example, the basis weight of the position having the protruding portion 11P is set in a range of 550 to 850 (g / m ² ), and the basis weight of the position not having the protruding portion 11P is It is set in the range of 200 to 500 (g / m ² ).

<<< Consideration of position of folding lines LB1, LB2, LB3 for folding in four >>>
As described above, the urine collecting pad 1 is folded in four so that the skin side surface is on the inner peripheral side for the purpose of reducing the dimension in the longitudinal direction during packaging. FIG. 9A is a schematic side view of the urine collecting pad 1 in a quadruple state. FIG. 9B is a schematic plan view of the urine collecting pad 1 showing the positions of the fold lines LB1, LB2, LB3 set in the main body 1s for folding in four.

  As shown in FIG. 9B, on the skin side surface of the main body 1s, linear folding lines LB1, LB2, LB3 along the width direction for folding the urine collecting pad 1 into four in the longitudinal direction are arranged in the longitudinal direction. Is set to one position. One of the three fold lines LB1, LB2, and LB3 is set at a position in front of the center position CLL in the longitudinal direction of the main body 1s, and the three fold lines LB1, One fold line LB1 of LB2 and LB3 is set at a position on the rear side of the center position CLL in the longitudinal direction of the main body 1s.

  Hereinafter, the rear fold line LB1 is also referred to as “first fold line LB1”, and the front fold line LB3 is also referred to as “third fold line LB3”. The remaining one fold line LB2 is located between the first fold line LB1 and the third fold line LB3 in the longitudinal direction. The fold line LB2 is also referred to as a “second fold line LB2”. .

  In the following description, the second projecting portion 11P2 positioned on the front side of the pair of second projecting portions 11P2 and 11P2 arranged in the longitudinal direction in relation to the projecting portion 11P of the absorbent core 11 is referred to as “front projecting portion 11P2”. Also, the second projecting portion 11P2 located on the rear side is also referred to as a “rear projecting portion 11P2”.

Here, as shown in FIG. 9B, in this embodiment, as a device for the position of the fold lines LB1, LB2, and LB3, the first fold line LB1 is behind the front edge 11P2ea in the rear protruding portion 11P2. It is provided at the side position. More specifically, the first fold line LB1 is provided on the substantially flat top surface 11P2t of the rear protruding portion 11P2. Therefore, at least for the first fold line LB1, the protruding portion 11P cannot be divided so that the space SP11 surrounded by the protruding portion 11P of the absorbent core 11 communicates with the outside. Details are as follows.
First, based on the bending at the first fold line LB1, even if the first fold line LB1 is a starting point and the projecting portion 11P is divided at the position, the groove-shaped divided portion D1 is generated. The dividing portion D1 occurs in the rear protruding portion 11P2 of the protruding portion 11P. And here, this rear side protrusion part 11P2 is the protrusion part 11P2 extended in the width direction as the edge part of the rear side of the longitudinal direction among the protrusion parts 11P. Therefore, even if the groove-shaped dividing portion D1 along the width direction is generated with respect to the rear side protruding portion 11P2, and the same divided portion D1 divides the rear side protruding portion 11P2 in the longitudinal direction, the divided portion Since D1 does not communicate with the space SP11 surrounded by the protruding portion 11P, the dividing portion D1 cannot be a flow path that connects the space SP11 surrounded by the protruding portion 11P and the outside. Thus, urine does not leak from the divided portion D1, and therefore, at least only the first fold line LB1 cannot be a starting point of urine leakage. Therefore, it is possible to reduce urine leakage caused by the fold lines LB1, LB2, and LB3 related to the four-fold as a whole.

Further, in the present embodiment, in the main body 1s, the range Ab between the front edge portion 11P2ea of the rear protruding portion 11P2 and the predetermined position Pb on the front side of the edge portion 11P2ea is not at all. The fold lines LB1, LB2, and LB3 are not provided. Specifically, in this example, the predetermined position Pb is set near the center position CLL in the longitudinal direction of the main body. A second fold line LB2 is set at a position slightly ahead of the predetermined position Pb. However, any fold line LB1 is in the range Ab between the predetermined position Pb and the edge 11P2ea. , LB2, LB3 are not set. Therefore, in the range Ab, a groove-shaped dividing portion that is a starting point of urine leakage is not formed, and urine leakage in the range Ab is reliably prevented. For example, urine discharged from the front part of the main body 1s flows backward on the skin side surface of the absorbent core 11, and is stopped by the rear protruding part 11P2 and stays in the vicinity of the edge part 11P2ea. However, in this respect, the fold lines LB1, LB2, and LB3 that are the starting points of urine leakage are not set in the above-described range Ab in front of the edge portion 11P2ea. Therefore, it is effectively prevented that urine that is blocked by the rear protruding portion 11P2 and stays in the vicinity of the edge portion 11P2ea leaks from the rear to the outside. This also contributes effectively to the reduction of urine leakage caused by the fold lines LB1, LB2, LB3 associated with the four-fold as a whole.

In this example, as described above, the predetermined position Pb is set in the vicinity of the center position CLL of the main body 1s, but the present invention is not limited to this. For example, the predetermined position Pb may be an intermediate position between the edge portion 11P2ea and the central position CLL, or the range between the edge portion 11P2ea and the central position CLL may be divided into three or four equal parts in the longitudinal direction. It is also possible to select one of several positions such as a plurality of equal parts and set it as the predetermined position Pb. However, as the predetermined position Pb is closer to the front edge 11P2ea of the rear protruding portion 11P2, the urine staying in the vicinity of the edge 11P2ea is more likely to leak from the fold line LB2, so that it is desirable. The predetermined position Pb may be set at a position away from the edge 11P2ea to the front side.

Further, in this example, as shown in FIG. 9A, the folding order when folding the urine absorbing pad 1 into four is first folded at the first folding line LB1, and then folded at the second folding line LB2. Finally, the order is to bend along the third fold line LB3. That is, it is first bent along the first fold line LB1.
Therefore, the first fold line LB1 is easily bent sharply. As a result, the wrinkles are strongly generated at the position of the first fold line LB1. May occur. However, even if the groove-shaped dividing portion D1 is greatly generated at the position, as described above with reference to FIG. 9B, the dividing portion D1 cuts and communicates the space SP11 surrounded by the protruding portion 11P with the outside. Not what you want. Therefore, the leakage resistance of the protrusion 11P is not greatly reduced by bending the first fold line LB1 first.
On the other hand, the fold lines LB2 and LB3 other than the first fold line LB1, that is, the second fold line LB2 and the third fold line LB3 are bent after the first fold line LB1. As a result, in the urine collecting pad 1 in the four-fold state, the second and third fold lines LB2 and LB3 are located on the outer peripheral side with respect to the first fold line LB1, and thus the first fold line LB1. It is bent more gently than the bending. Therefore, wrinkles are generated weakly at the second and third fold lines LB2 and LB3. As a result, the divided portions D2 and D3 generated when the urine collecting pad 1 is deployed are relatively light. Therefore, even if the divided portions D2 and D3 communicate the space SP11 surrounded by the protruding portion 11P with the outside, it does not cause a large urine leak. As a result, urine leakage due to the fold lines LB1, LB2, and LB3 related to the four fold as a whole can be effectively reduced.

Incidentally, in the example of FIG. 9B, the third fold line LB3 cannot be the starting point of urine leakage. That is, the third fold line LB3 is provided at a position on the front side of the main body portion 1s with respect to the rear edge portion 11P2eb of the front side protruding portion 11P2, and more specifically, substantially flat on the front side protruding portion 11P2. Provided on the top surface 11P2t. Therefore, for the same reason that the first fold line LB1 provided on the top surface 11P2t of the rear protruding portion 11P2 cannot be the starting point of urine leakage, the third fold line LB3 also has urine leakage. It cannot be the starting point. Therefore, only the second fold line LB2 can be a starting point of urine leakage, but the division of the protrusion 11P caused by the second fold line LB2 (that is, the division of the first protrusions 11P1 and 11P1) As described above, it becomes mild and does not cause large urine leakage.
In addition to this, in this example, as shown in FIG. 9B, the second fold line LB2 is located on the rear side of the center position CLL in the longitudinal direction. Therefore, even if the first projecting portion 11P1 which is the projecting portion 11P is divided forward and backward at the position of the second fold line LB2, the position is from the expected urination position to be set at the front portion of the main body 1s. It is relatively far away. Therefore, it does not lead to large urine leakage.

  Further, in the present embodiment, the first fold line LB1 is provided on the top surface 11P2t of the rear protruding portion 11P2, but this is not a limitation. That is, in some cases, the first fold line LB1 may be located on the rear side of the rear protruding portion 11P2 in the main body 1s. If this is done, the first fold line LB1 is not formed in the rear protruding portion 11P2. Therefore, the groove-shaped dividing portion D1 is generated in the rear protruding portion 11P2 due to the first fold line LB1. Completely prevented. Therefore, since the rear protruding portion 11P2 can contact the buttocks of the human body with the substantially flat top surface 11P2t without the groove-shaped dividing portion D1, the occurrence of a gap with the buttocks is effectively prevented. The rear protruding portion 11P2 can reliably dam the staying urine and reliably prevent leakage to the outside.

  Further, as described above, in the example of FIG. 9B, the third fold line LB3 is provided on the top surface 11P2t of the front projecting portion 11P2, but this is not a limitation. That is, depending on the case, the 3rd bending line LB3 may be located in the front side rather than the front side protrusion part 11P2. If this is done, the third fold line LB3 is not formed in the front protruding portion 11P2. Therefore, it is completely possible that the groove-shaped dividing portion D3 is generated in the front protruding portion 11P2 due to the third fold line LB3. Is prevented. Therefore, since the front protruding portion 11P2 can contact the lower abdomen of the human body with the substantially flat top surface 11P2t without the groove-shaped dividing portion D3, the occurrence of a gap between the lower abdomen is effectively prevented, As a result, the front protruding portion 11P2 can reliably dam the staying urine and reliably prevent leakage to the outside.

  By the way, referring to FIG. 4 before, “an intermediate portion 41fm of the free end portion 41f related to the leakage preventing wall portion 40 located between the front end portion 41fa and the rear end portion 41fb is raised by the elastic member 45. It functions as the leak-proof wall 40 ”. In the above example, when the longitudinal ranges corresponding to the rear end portion 41fb, the intermediate portion 41fm, and the front end portion 41fa are the rear range Rb, the intermediate range Rm, and the front range Ra, respectively, Although the first fold line LB1 is included in the intermediate range Rm, this point is preferably included in the rear range Rb as shown in the schematic plan view of FIG.

And if it is made like this, since bending at the 1st bending line LB1 at the time of wearing the urine picking pad 1 is suppressed, the problem which may occur when bending is tight, ie, 1st bending line LB1. In this position, a problem can be effectively prevented that a large gap is formed between the heel portion of the human body and leakage resistance is lowered. Details are as follows.
First, in the intermediate portion 41fm, which is a raised portion of the free end portion 41f related to the leak-proof wall portion 40 in FIG. 10, the moment arm increases due to the standing. Therefore, a bending moment for bending the main body 1s toward the skin side in the thickness direction is strongly generated in the intermediate portion 41fm based on the contraction force of the elastic member 45. Therefore, if the first fold line LB1 is included in the standing range Rm, the first fold line LB1 is bent at a tight angle.
However, with regard to this point, in the configuration of FIG. 10, the first fold line LB1 is included in the rear range Rb. In the rear range Rb, the free end portion 41f is the main body portion 1s. The base end portion 41b is bonded and fixed to the base end portion 41b with a hot melt adhesive or the like. For this reason, in the same range Rb, the contraction force of the elastic member 45 is exclusively received by the main body 1s. Therefore, in the rear side range Rb, the contraction force directly acting from the elastic member 45 to the free end portion 41f is very small. Thus, at the position of the first fold line LB1, the free end portion 41f is a non-standing portion. And if it does not stand up, said moment arm will not increase. Therefore, a bending moment is not so much generated at the position of the first fold line LB1, and as a result, the situation where the first fold line LB1 is forcibly bent based on the elastic member 45 is effectively prevented. As a result, the vicinity of the first fold line LB1 can be deformed flexibly so as to conform to the shape of the corresponding heel part of the human body, and can be brought into close contact with the heel part, thereby the same at the position of the first fold line LB1. The gap between the heel part is reduced, and leakage prevention can be enhanced.

  Furthermore, in the example of FIG. 10, the third fold line LB3 is a predetermined range Aa on the front side in the longitudinal direction of the main body 1s, and includes the front protruding portion 11P2 and continues from the front protruding portion 11P2. Although it is included in Aa (corresponding to the third range), it is preferable that the third fold line LB3 is further included in the intermediate range Rm (corresponding to the second range). This is the case in the example of FIG.

  If this is the case, at the position of the third bend line LB3, the contraction force acts strongly from the elastic member 45 of the free end portion 41f that stands, and the moment arm increases due to the standing. Based on the above, a bending moment for bending the main body 1 s toward the skin side in the thickness direction acts strongly at the same position. Therefore, the main body 1s is easily bent toward the skin at the third fold line LB3. And thereby, the part behind the third fold line LB3 in the main body 1s is in close contact with the wearer's crotch with almost no gap, while the front side of the third fold line LB3 in the main body 1s. Can be closely attached to the lower abdomen of the wearer with almost no gap. Therefore, urine leakage from the front side in the longitudinal direction can be effectively prevented.

<<< About device made | formed with respect to leak-proof wall part 40 >>>
As shown in FIG. 7, the standing start position 41be at which the leakage preventing wall portion 40 starts to rise from the top sheet 21 is the width of the edge 41be on the center side in the width direction among the base end portions 41b according to the leakage preventing wall portion 40. Here, in this embodiment, as a device related to the leak-proof wall portion 40, the standing start position 41be is set to a position corresponding to the first protruding portion 11P1 of the protruding portion 11P of the absorbent core 11. It is set. Specifically, the base end portion 41b of the leak-proof wall portion 40 is fixed to the topsheet 21 while aligning the standing start position 41be on the top surface 11P1t of the first projecting portion 11P1. And if it does in this way, the leak-proof wall part 40 and the 1st protrusion part 11P1 will mutually cooperate, and it can function as a high dam, Thereby, the leak-proof property of the width direction can be improved more. .

<<< About the device made | formed with respect to the pressing part E of the surface sheet 21 >>>
As described above with reference to FIG. 4, a pressing portion E is formed on the skin side surface of the topsheet 21 from which both the topsheet 21 and the absorbent core 11 are pressed together from the skin side in the thickness direction. Has been. And in this embodiment, in the center part 1sCw of the width direction of the part enclosed by the protrusion part 11P of the absorptive core 11 among the main-body parts 1s of the urine picking pad 1, it is 1st as a kind of said compression part E. The pressing part E1 is formed on the straight line along the longitudinal direction. For example, in the example of FIG. 4, the 1st pressing part E1 has several (three) groove part H1, H1, H1 long in a longitudinal direction, and each groove part H1 is between the groove parts H1 adjacent to a longitudinal direction. Are formed in a state of being spaced apart from each other. The groove H1 is formed on each of the front and rear portions of the center line CLL so as to sandwich the longitudinal center line CLL of the body portion 1s of the urine absorbing pad 1.

  And if such 1st pressing part E1 is formed, the force F which faced the center side of the width direction like the crotch force from the wearer who mounted | weared the underwear will be the urine picking pad 1 from the both sides of the width direction. 11, the main body 1 s of the urine removing pad 1 is non-skinned at a substantially central position in the width direction with the first pressing portion E1 as a folding point, as shown in the schematic perspective view of FIG. 11. The space SP11 (FIGS. 8A to 8C) surrounded by the projecting portion 11P can be enlarged by bending so as to be dented to the side. As a result, urine can be temporarily stored more reliably in the space SP11.

  Here, desirably, as in the example of FIG. 4, a pair of second pressing parts E2 and E2 are formed side by side in the width direction at each end in the longitudinal direction of the part surrounded by the protruding part 11P. And it is good for each 2nd pressing part E2 to be provided so that it may go to the end side from the center side of a width direction as it goes to the end side from the center side of a longitudinal direction. In addition, in this example, the 2nd pressing part E2 is formed in the form of one continuous groove part over the full length.

  And if such 2nd pressing part E2 is formed, under the effect | action to the main-body part 1s of said crotch tightening force F, 2nd pressing part E2 cooperates with the above-mentioned 1st pressing part E1. Thus, the main body 1s is deformed into a cup shape as shown in FIG. That is, the central portion 1sC in both the longitudinal direction and the width direction of the main body portion 1s is indented toward the non-skin side. As a result, the central portion 1sC is separated from the crotch, but the portions other than the central portion 1sC, that is, the end portions 1sLe, 1sLe in the longitudinal direction and the end portions 1sWe in the width direction of the main body portion 1s, About 1 sWe, it will be in the state closely_contact | adhered between a wearer's lower abdomen, buttocks, and crotch, respectively. That is, the main body 1s defines a substantially closed space in cooperation with the crotch. Therefore, it is possible to reliably temporarily store urine in an amount that the absorbent core 11 cannot instantaneously absorb due to urge incontinence or the like in the space.

Incidentally, the reason why the main body 1s is likely to be cup-shaped as shown in FIG. 11 based on the first pressing part E1 and the second pressing part E2 is as follows.
First, when a force F (FIG. 4) directed from the wearer's crotch toward the center in the width direction acts on the main body 1s of the urine collecting pad 1 attached to the underwear from both sides in the width direction, it is shown in FIG. Thus, the main body 1s is valley-folded so as to be recessed toward the non-skin side at the center portion 1sC in the width direction due to the first pressing portion E1.
On the other hand, a pair of second squeezing parts E2 and E2 are provided in each part on the end side in the longitudinal direction from the central part 1sC, but the pair of second squeezing parts E2 and E2 are substantially the same. Based on the V-shape, the distance between the second pressing parts E2 and E2 gradually opens toward the end in the longitudinal direction. Therefore, in these each part, the influence of the valley fold resulting from the 1st pressing part E1 is gradually relieved as it goes to the end side of a longitudinal direction, and this is longer than a pair of 2nd pressing part E2, E2. The end portions 1sLe and 1sLe, which are portions on the end side in the direction, have a planar shape substantially along a plane defined by the longitudinal direction and the width direction. And as a result, about the portions other than the central portion 1sC, that is, the end portions 1sLe, 1sLe in the longitudinal direction of the main body portion 1s and the end portions 1sWe, 1sWe in the width direction, the wearer's lower abdomen, buttocks, The main body 1s is deformed into a shape away from the crotch with respect to the center 1sC while closely contacting the crotch. That is, the main body 1s has a cup shape.

  Although not shown in detail in FIGS. 4 and 11, the groove part H1 of the first pressing part E1 and the groove part of the second pressing part E2 each have a deep part and a shallow part having different depths. doing. However, it is not limited to this. That is, the depth of the groove portion may be constant over the entire length. Moreover, depending on the case, the 1st pressing part E1 and the 2nd pressing part E2 may be formed in the several island-shaped dent part, Furthermore, the shape of the bottom face of each dent part is circular or a rectangle. May be.

<<< About manufacturing method of urine absorption pad 1 >>>
Such a urine absorption pad 1 is manufactured by, for example, the following method using an appropriate manufacturing apparatus.
First, the absorptive core 11 is produced | generated with a fiber stacking apparatus. Specifically, the fiber stacking apparatus includes, for example, a suction belt conveyor that conveys an object to be conveyed while adsorbing an object to be conveyed with the upper surface serving as a conveying surface, and a rotating drum that is disposed above and rotates.

  The rotating drum has a dent portion on the outer peripheral surface, and the dent portion has an adsorption function for adsorbing the liquid absorbent material. Further, a deeper dent is formed on the bottom of the dent corresponding to the protrusion 11P of the absorbent core 11 described above. Therefore, the absorbent core 11 having the above-described annular protrusion 11P is generated by adsorbing and depositing the liquid absorbent material sprayed from an appropriate duct with the dents on the outer peripheral surface adsorbed thereon. And the produced | generated absorptive core 11 is sent to the downstream of a conveyance direction with a suction belt conveyor.

  At a predetermined position on the downstream side in the transport direction, the continuous body of the top sheet 21 assembled with the continuous body of the pair of side sheets 41 merges from above. That is, the continuous body of each side sheet 41 is fixed by thermal welding or the like on both sides in the width direction of the continuous body of the top sheet 21, and the continuous body of each side sheet 41 is already in an extended state. Elastic members 45, 45... Are fixed. And the absorptive core 11 will be in the state covered by the continuous body of such a surface sheet 21 from upper direction. And after that, this absorptive core 11 and the surface sheet 21 are united and conveyed by the conveyance direction, and are sent to the embossing roll apparatus of the downstream of a conveyance direction by this.

  The embossing roll device has, for example, a pair of rotating upper and lower rolls, and an outer peripheral surface of the upper roll is provided with a protruding portion having a shape corresponding to the pressing portion E such as the first pressing portion E1. Therefore, when passing through the embossing roll device, the squeezed portion E is formed on both the continuous body of the topsheet 21 and the absorbent core 11 and is further sent downstream in the transport direction.

At a predetermined position on the downstream side in the conveying direction, the continuous body of the back sheet 31 joins from below. Then, by placing the continuous body of the top sheet 21 on the continuous body of the back sheet 31 via the absorbent core 11, the absorbent core is interposed between the continuous body of the top sheet 21 and the continuous body of the back sheet 31. 11 is inserted and sent to the downstream round seal device in this state.
By the way, at this time, the hot melt adhesive has already been applied to the non-skin side surface of the back sheet 31, and thereby the anti-slip adhesive portions 33, 33 have been formed. Further, for the purpose of protecting the adhesiveness of the slip-preventing adhesive portions 33, 33, the adhesive portions 33, 33 are covered with a protective sheet such as a release sheet.

  The round seal device has, for example, a pair of rotating upper and lower rolls, and a protrusion having a shape corresponding to the contour shape of the urine removing pad 1 is provided on the outer peripheral surface of the upper roll. Therefore, when passing through the round seal device, both the continuous body of the top sheet 21 and the continuous body of the back sheet 31 correspond to the end portions in the longitudinal direction and the end portions in the width direction of the urine collecting pad 1. They are joined to each other by heat welding or the like. As a result, a continuous body of the urine removing pad 1 is generated, and the continuous body of the urine collecting pad 1 is further sent to the die cutter device on the downstream side in the transport direction.

  The die cutter device has a pair of rotating rolls, and an outer peripheral surface of one of the rolls has a punching blade having a shape corresponding to the contour shape of the urine collecting pad 1. Therefore, when the continuous body of the urine removing pad 1 passes through the die cutter device, the urine absorbing pad 1 is individually punched out of the continuous body of the urine collecting pad 1 by the punching blade, and thereby the urine collecting pad is cut into a single sheet. Pad 1 is generated.

Finally, the single-cut urine collecting pad 1 is folded in four, but the urine collecting pad 1 is transported in a so-called longitudinal flow before the four-fold. That is, the urine collecting pad 1 is transported with the longitudinal direction thereof facing the transport direction. Therefore, as a preliminary process for the quarter-folding process, first, the transport mode of the urine removing pad 1 is changed to the lateral flow transport. That is, the urine absorbing pad 1 is rotated by 90 ° so that the width direction faces the transport direction. Such 90 ° rotation processing is performed by a rotating drum device having a rotatable holding pad on the outer peripheral surface. Then, the urine collecting pad 1 changed to the transverse flow conveyance by the 90 ° rotation of the holding pad is delivered to the suction belt conveyor while being conveyed in the transverse flow.
Here, on the conveyor, folding plates are arranged corresponding to the folding lines LB1, LB2, LB3 of the urine removing pad 1, respectively, and when passing through these folding plates, each folding plate sequentially Folding lines LB1, LB2, and LB3 are folded, and as a result, urine collecting pad 1 is folded into four.

  By the way, although the explanation is omitted here, immediately before this four-folding process, the continuous body of the packaging sheet is joined so that the urine collecting pad 1 is covered with the continuous body of the packaging sheet from the non-skin side surface. The urine collecting pad 1 is folded into four with the above folding plates together with the continuous body of the packaging sheet. After that, it is sent to the end seal device downstream in the transport direction.

  The end seal device has a pair of rotating rolls, and a protrusion is provided on the outer peripheral surface of one of the rolls. And, when the portion between the urine removing pads 1 and 1 of the continuous body of the packaging sheet passes through the end seal device, the portion is sandwiched and thermally welded by the protrusions, thereby A partition part is formed in the part between urine picking pads 1 and 1, and as a result, each urine picking pad 1 will be in the state accommodated in the continuous body of the packaging sheet. Then, it is sent to the end cut device downstream in the transport direction.

  The end cut device has a pair of rotating rolls, and a cutter blade is provided on the outer peripheral surface of one of the rolls. Therefore, when passing through the end seal device, the continuous body of the packaging sheet is divided by the partition portion, which is a portion thermally welded by the end seal device, so that the urine collecting pad 1 in a four-fold state is individually provided. The individual package body of the urine collecting pad 1 which is packaged is generated.

<<< Regarding Modifications of Urine Collection Pad 1 >>>
FIG. 12 is an explanatory diagram of a urine absorption pad 1 according to a modification of the present embodiment. 12 is a view corresponding to the BB cross-sectional view in FIG.
The structure of the absorbent core 11 of the above-described embodiment is a single-layer structure having only one absorbent core 11, but the structure of the absorbent core 11 of this modification is shown in FIG. As shown, it is different in that it has a two-layer structure in which two absorptive cores 11, 11 as examples are superimposed in the thickness direction. In addition, points other than this are substantially the same as the above-mentioned embodiment. Therefore, below, the same code | symbol is attached | subjected about the same structure as the above-mentioned embodiment, and the description is abbreviate | omitted.

  As shown in FIG. 12, the planar shapes of the two absorbent cores 11 and 11 are substantially the same, and both absorbent cores 11 and 11 are thick over the entire circumference of the outer peripheral edge portion. It has an annular protrusion 11P that protrudes toward the skin side in the vertical direction. And the two absorptive cores 11 and 11 are overlap | superposed in the thickness direction, aligning so that a mutual outer periphery part may overlap. In addition, when coat | covering with liquid permeable sheets, such as tissue paper, these two absorptive cores 11 and 11 are covered by the same sheet in the state which overlapped.

  And according to this modification, the uncomfortable feeling by the protrusion part 11P at the time of wear can also be suppressed, ensuring the liquid absorption capacity | capacitance of the protrusion part 11P high. Details are as follows. When the protruding height L11P of the protruding portion 11P is high, the wearer tends to feel uncomfortable because the protruding portion 11P hits the wearer's crotch. On the other hand, if the protrusion height L11P of the protrusion 11P is lowered, the liquid absorption capacity of the protrusion 11P may be reduced. Here, only the absorbent core 11 located on the most skin side hits the crotch when worn. Therefore, if the protruding height L11P of the protruding portion 11P of each of the absorbent cores 11 and 11 is reduced to, for example, half, the two absorbent cores 11 and 11 having a reduced protruding height L11P are overlapped in the thickness direction. In addition, while maintaining the liquid-absorbable capacity generally determined by the total value of the protrusion heights L11P of the protrusions 11P and 11P, the discomfort between the crotches generally determined by the protrusion height L11P of the protrusion 11P of one absorbent core 11 is suppressed. can do.

  Incidentally, in this modified example, the basis weight distribution pattern of the liquid absorbent material is the same between the two absorbent cores 11, 11. However, the present invention is not limited to this, and may be different depending on circumstances. . Also, the protrusion height L11P of the protrusion 11P is the same between the two absorbent cores 11 and 11, but is not limited to this, and may be different depending on circumstances. Further, three or more absorbent cores 11 may be overlapped in the thickness direction.

=== Other Embodiments ===
As mentioned above, although embodiment of this invention was described, said embodiment is for making an understanding of this invention easy, and is not for limiting and interpreting this invention. Further, the present invention can be changed or improved without departing from the gist thereof, and needless to say, the present invention includes equivalents thereof. For example, the following modifications are possible.

  In the above-described embodiment, the urine collecting pad 1 is described as an example of an absorbent article that is used while attached to underwear. However, the present invention is not limited to this. For example, a sanitary napkin that absorbs menstrual blood instead of urine may be used.

  In the above-described embodiment, the three fold lines LB1, LB2, and LB3 are exemplified as the plurality of fold lines, and thus the urine collecting pad 1 is folded in four. However, the present invention is not limited to this. That is, it may be folded in half with only one folding line, may be folded in three with two folding lines, or may be folded with four or more folding lines.

  In the above-described embodiment, as shown in FIGS. 8A to 8C, the absorbent core 11 has the protruding portion 11P that protrudes toward the skin side in the thickness direction along the outer peripheral edge portion of the skin side surface. , But not limited to this. For example, as shown in FIGS. 13A to 13C, the protruding portion 11 </ b> P may be formed in an annular shape at a slightly central position in the width direction and the longitudinal direction from the outer peripheral edge portion of the skin side surface of the absorbent core 11. Incidentally, FIG. 13A is a schematic plan view showing the urine absorption pad 1 other than the absorbent core 11 in a perspective view, and FIGS. 13B and 13C are cross-sectional views taken along line BB and C in FIG. 13A, respectively. It is -C sectional drawing, and is a figure which shows only the absorptive core 11. FIG.

  In the above-described embodiment, as illustrated in FIG. 8A, the shape of the absorbent core 11 is a substantially rectangular flat plate shape, that is, the planar shape of the absorbent core 11 is a rectangular shape, but is not limited thereto. For example, as shown in FIGS. 13A to 13C, the planar shape may be a substantially hourglass shape.

  In the above-described embodiment, as illustrated in FIGS. 8B and 8C, the cross-sectional shapes of the first protruding portion 11P1 and the second protruding portion 11P2 related to the protruding portion 11P of the absorbent core 11 are substantially trapezoidal, Not limited to this. For example, it may be a substantially rectangular shape or a substantially square shape, or may have a shape other than these.

  In the above-described embodiment, the pair of first projecting portions 11P1 and 11P1 is formed in a linear shape parallel to the longitudinal direction, but is not limited thereto. That is, it may be a shape in which the position in the width direction changes according to the position in the longitudinal direction, such as a curved shape.

  In the above-described embodiment, the front-side protruding portion 11P2 and the rear-side protruding portion 11P2 that are the pair of second protruding portions 11P2 and 11P2 are formed in a linear shape parallel to the width direction, but are not limited thereto. That is, it may be a shape in which the position in the longitudinal direction changes according to the position in the width direction, such as a curved shape.

  In the above-described embodiment, the pair of second projecting portions 11P2 and 11P2, that is, the front projecting portion 11P2 and the rear projecting portion 11P2 have the same shape. Also good.

In the above-described embodiment, the first fold line LB1 is illustrated as an example of a fold line provided at a position behind the front edge 11P2ea in the rear protruding portion 11P2. As shown in FIG. 9B, the first fold line LB1 is provided on the top surface 11P2t of the rear protruding portion 11P2 as an example of the rear side position. The condition of “provided at a position behind the front edge 11P2ea of the rear protruding portion 11P2” was satisfied. However, in this example, the cross-sectional shape of the rear protruding portion 11P2 has a substantially trapezoidal shape, and as shown in FIG. 8C, the top surface 11P2t is an upper bottom provided in the substantially trapezoidal shape. It corresponds to the upper base which is the smaller side of both of the bottom and bottom. Therefore, there are two candidates for the front edge 11P2ea in this case depending on the way of viewing. That is, the first candidate 11P2ea1 is on the skin side (upper bottom side) in the thickness direction, and the second candidate 11P2ea2 is on the non-skin side (lower bottom side) in the thickness direction.
Therefore, here, the front edge 11P2ea will be described. When there are a plurality of candidates for the front edge 11P2ea, in a broad sense, the edge located on the front side is the front side. Corresponds to the edge 11P2ea. Therefore, as in the example of FIG. 8C above, in a broad sense, the rear side protruding portion 11P2 has a substantially trapezoidal cross-sectional shape and the top surface 11P2t is a substantially trapezoidal shape. The edge portion 11P2ea2 on the non-skin side (lower bottom side) in the thickness direction, which is the second candidate, is regarded as the front edge portion 11P2ea. And in that case, what is necessary is just to provide the 1st bending line LB1 in the position of the back side rather than the edge part 11P2ea2 in the said non-skin side. For example, the first trapezoidal slope portion of FIG. 8C, that is, the slope portion between the non-skin side (lower bottom side) edge 11P2ea2 and the skin side (upper bottom side) edge 11P2ea1 The fold line LB1 may be set.
However, in some cases, the front edge 11P2ea may be defined narrowly as follows. That is, when there are a plurality of candidates for the front edge 11P2ea, the edge 11P2ea1 located on the rear side may correspond to the front edge 11P2ea. In the case of such a narrow definition, since the first fold line LB1 is set at a position on the rear side of the edge portion 11P2ea1 located on the rear side, urine leakage caused by the first fold line LB1. Can be prevented more reliably.

  The definition in the broad sense and narrow sense described with respect to the front edge portion 11P2ea of the rear protruding portion 11P2 is the same in the case of the installation position of the third fold line LB3 in FIG. 9B. That is, with respect to the third fold line LB3, when there are a plurality of candidates for the rear edge 11P2eb in the front protruding portion 11P2, the edge located on the rear side in the broad sense is This corresponds to the rear edge 11P2eb, and in a narrow sense, the edge located on the front side corresponds to the rear edge 11P2eb.

In the example of FIG. 9B, since the rear protruding portion 11P2 is linear along the width direction, the front edge 11P2ea of the rear protruding portion 11P2 is also linear along the width direction. Therefore, with respect to the position in the longitudinal direction, the position of the front edge portion 11P2ea has not changed substantially over the entire width in the width direction, but in some cases, the position of the front edge portion 11P2ea may be changed to the position in the width direction. It is also possible to change in the longitudinal direction accordingly. For example, as shown in FIG. 14, when the shape of the rear protruding portion 11P2 viewed from the skin side in the thickness direction is a substantially arc shape with the central portion in the width direction protruding rearward, The position of the edge portion 11P2ea changes in the longitudinal direction according to the position in the width direction. Here, in this case, “the position on the rear side in the longitudinal direction in the main body portion 1s relative to the front edge portion 11P2ea” according to claim 1 is, of course, “from the entire front edge portion 11P2ea. Also means “rear position”. Therefore, for example, in the case of the arc shape of FIG. 14, the first fold line LB1 is provided at a position behind the edge 11P2eac at the center portion in the width direction that protrudes most rearward.
This also applies to the third fold line LB3. That is, “the position on the front side in the longitudinal direction in the main body 1s than the rear edge 11P2eb” according to claim 7 naturally means “the position on the front side of the entire rear edge 11P2eb”. Is the meaning.

1 Urine pad (absorbent article), 1s body part,
1sCw center,
1sC center, 1sLe end, 1sWe end,
11 Absorbent core, 11C center part,
11P protrusion,
11P1 first protruding portion, 11P1t top surface,
11P2 second projecting part (rear projecting part, front projecting part),
11P2ea Front edge in the rear protruding part,
11P2eac Edge at the center in the width direction,
11P2ea1 first candidate edge, 11P2ea2 second candidate edge,
11P2eb Rear edge of the front protruding portion, 11P2t top surface,
21 Top sheet, 31 Back sheet,
33 Adhesive part for slip prevention,
40 Leak-proof wall,
41 side sheet (sheet-like member),
41b base end, 41b1 front end, 41b2 rear end, 41b3 middle part,
41be edge (standing start position),
41f free end part, 41fa front end part, 41fb rear end part, 41fm middle part,
41s part,
45 elastic member,
Aa predetermined range (third range), Ab range,
D1 part, D2 part, D3 part,
E pressing part,
E1 1st pressing part, E2 2nd pressing part, H1 groove part,
Pb predetermined position,
Ra front range, Rb rear range, Rm intermediate range (second range),
CLL longitudinal center line (longitudinal center position), CLW width center line,
LB1 first fold line, LB2 second fold line, LB3 third fold line,
SP11 space,

Claims (8)

An absorbent article used to be attached to underwear to absorb excretory fluid, and having a thickness direction, a width direction, and a longitudinal direction,
The main body of the absorbent article has an absorbent core containing a liquid absorbent material,
The absorbent core has a protruding portion that protrudes toward the skin side on the surface facing the skin side in the thickness direction,
The projecting portions are formed in an annular shape surrounding the longitudinal central portion of the absorbent core, and two projecting portions extending in the width direction as end portions of the longitudinal direction of the projecting portions. Have
The main body portion is a fold line for reducing the size of the absorbent article in the longitudinal direction, and a surface of the absorbent article facing the skin side is an inner peripheral side. The fold line along the width direction for folding the absorbent article is set at at least one position in the longitudinal direction;
When one projecting portion of the two projecting portions is a front projecting portion and the other projecting portion is a rear projecting portion,
At least one fold line among the fold lines is provided at a position on the rear side in the longitudinal direction of the main body portion rather than an edge on the front side in the longitudinal direction in the rear side protruding portion ,
The main body portion is attached to the underwear while the front side in the longitudinal direction corresponds to the abdomen side of the wearer and the rear side corresponds to the back side,
A leak-proof wall portion is provided along the longitudinal direction on the surface of the main body portion facing the skin side in the thickness direction,
The leak-proof wall portion is formed by a sheet-like member provided along the longitudinal direction, and an elastic member fixed to the sheet-like member in an extended state in the longitudinal direction,
When the elastic member contracts from the stretched state, the sheet-like member contracts in the longitudinal direction and rises from the surface of the main body by the contracting force applied to the sheet-like member.
The contraction force is applied to the sheet-like member over the entire length of the second range in the longitudinal direction, and is applied to the sheet-like member in a range on the rear side in the longitudinal direction with respect to the second range. The magnitude of the contracted force being made smaller than the second range;
When the fold line provided at a position on the rear side in the longitudinal direction from the edge is the first fold line,
The absorbent article, wherein the first fold line is included in the range on the rear side . The absorbent article according to claim 1,
When the fold line is set at a plurality of positions in the longitudinal direction and the fold line provided at a position on the rear side of the longitudinal direction from the edge is the first fold line,
When the absorbent article is bent based on the fold lines at the plurality of positions, the first fold line is a fold line that is bent first among the fold lines at the plurality of positions. Absorbent article. An absorbent article used to be attached to underwear to absorb excretory fluid, and having a thickness direction, a width direction, and a longitudinal direction,
The main body of the absorbent article has an absorbent core containing a liquid absorbent material,
The absorbent core has a protruding portion that protrudes toward the skin side on the surface facing the skin side in the thickness direction,
The projecting portions are formed in an annular shape surrounding the longitudinal central portion of the absorbent core, and two projecting portions extending in the width direction as end portions of the longitudinal direction of the projecting portions. Have
The main body portion is a fold line for reducing the size of the absorbent article in the longitudinal direction, and a surface of the absorbent article facing the skin side is an inner peripheral side. The fold line along the width direction for folding the absorbent article is set at at least one position in the longitudinal direction;
When one projecting portion of the two projecting portions is a front projecting portion and the other projecting portion is a rear projecting portion,
At least one fold line among the fold lines is provided at a position on the rear side in the longitudinal direction of the main body portion rather than an edge on the front side in the longitudinal direction in the rear side protruding portion,
The main body portion is attached to the underwear while the front side in the longitudinal direction corresponds to the abdomen side of the wearer and the rear side corresponds to the back side,
A leak-proof wall portion is provided along the longitudinal direction on the surface of the main body portion facing the skin side in the thickness direction,
The leak-proof wall portion is formed by a sheet-like member provided along the longitudinal direction, and an elastic member fixed to the sheet-like member in an extended state in the longitudinal direction,
When the elastic member contracts from the stretched state, the sheet-like member contracts in the longitudinal direction and rises from the surface of the main body by the contracting force applied to the sheet-like member.
The contraction force is applied to the sheet-like member over the entire length of the second range in the longitudinal direction,
The third range of the main body portion in the longitudinal direction, including the front protruding portion and continuing from the front protruding portion, includes at least one fold line of the fold lines. And
The absorbent article, wherein the fold line included in the third range is included in the second range. An absorbent article used to be attached to underwear to absorb excretory fluid, and having a thickness direction, a width direction, and a longitudinal direction,
The main body of the absorbent article has an absorbent core containing a liquid absorbent material,
The absorbent core has a protruding portion that protrudes toward the skin side on the surface facing the skin side in the thickness direction,
The projecting portions are formed in an annular shape surrounding the longitudinal central portion of the absorbent core, and two projecting portions extending in the width direction as end portions of the longitudinal direction of the projecting portions. Have
The main body portion is a fold line for reducing the size of the absorbent article in the longitudinal direction, and a surface of the absorbent article facing the skin side is an inner peripheral side. The fold line along the width direction for folding the absorbent article is set at at least one position in the longitudinal direction;
When one projecting portion of the two projecting portions is a front projecting portion and the other projecting portion is a rear projecting portion,
At least one fold line among the fold lines is provided at a position on the rear side in the longitudinal direction of the main body portion rather than an edge on the front side in the longitudinal direction in the rear side protruding portion,
When a fold line provided at a position on the rear side in the longitudinal direction in the main body portion than the edge portion is a first fold line,
The absorbent article, wherein the first fold line is located on the rear side in the longitudinal direction with respect to the rear projecting portion. An absorbent article used to be attached to underwear to absorb excretory fluid, and having a thickness direction, a width direction, and a longitudinal direction,
The main body of the absorbent article has an absorbent core containing a liquid absorbent material,
The absorbent core has a protruding portion that protrudes toward the skin side on the surface facing the skin side in the thickness direction,
The projecting portions are formed in an annular shape surrounding the longitudinal central portion of the absorbent core, and two projecting portions extending in the width direction as end portions of the longitudinal direction of the projecting portions. Have
The main body portion is a fold line for reducing the size of the absorbent article in the longitudinal direction, and a surface of the absorbent article facing the skin side is an inner peripheral side. The fold line along the width direction for folding the absorbent article is set at at least one position in the longitudinal direction;
When one projecting portion of the two projecting portions is a front projecting portion and the other projecting portion is a rear projecting portion,
At least one fold line among the fold lines is provided at a position on the rear side in the longitudinal direction of the main body portion rather than an edge on the front side in the longitudinal direction in the rear side protruding portion,
When a fold line provided at a position on the rear side in the longitudinal direction in the main body portion than the edge portion is a first fold line,
The absorbent article, wherein the first fold line is located at the rear protruding portion. An absorbent article used to be attached to underwear to absorb excretory fluid, and having a thickness direction, a width direction, and a longitudinal direction,
The main body of the absorbent article has an absorbent core containing a liquid absorbent material,
The absorbent core has a protruding portion that protrudes toward the skin side on the surface facing the skin side in the thickness direction,
The projecting portions are formed in an annular shape surrounding the longitudinal central portion of the absorbent core, and two projecting portions extending in the width direction as end portions of the longitudinal direction of the projecting portions. Have
The main body portion is a fold line for reducing the size of the absorbent article in the longitudinal direction, and a surface of the absorbent article facing the skin side is an inner peripheral side. The fold line along the width direction for folding the absorbent article is set at at least one position in the longitudinal direction;
When one projecting portion of the two projecting portions is a front projecting portion and the other projecting portion is a rear projecting portion,
At least one fold line among the fold lines is provided at a position on the rear side in the longitudinal direction of the main body portion rather than an edge on the front side in the longitudinal direction in the rear side protruding portion,
At least one fold line among the fold lines is provided at a position on the front side in the longitudinal direction in the main body portion rather than an edge on the rear side in the longitudinal direction in the front protruding portion. Absorbent article. The absorbent article according to claim 6 ,
When a fold line provided at a position on the front side in the longitudinal direction in the main body portion than the edge portion is a third fold line,
The absorbent article, wherein the third fold line is located on the front side in the longitudinal direction with respect to the front protruding portion. An absorbent article used to be attached to underwear to absorb excretory fluid, and having a thickness direction, a width direction, and a longitudinal direction,
The main body of the absorbent article has an absorbent core containing a liquid absorbent material,
The absorbent core has a protruding portion that protrudes toward the skin side on the surface facing the skin side in the thickness direction,
The projecting portions are formed in an annular shape surrounding the longitudinal central portion of the absorbent core, and two projecting portions extending in the width direction as end portions of the longitudinal direction of the projecting portions. Have
The main body portion is a fold line for reducing the size of the absorbent article in the longitudinal direction, and a surface of the absorbent article facing the skin side is an inner peripheral side. The fold line along the width direction for folding the absorbent article is set at at least one position in the longitudinal direction;
When one projecting portion of the two projecting portions is a front projecting portion and the other projecting portion is a rear projecting portion,
At least one fold line among the fold lines is provided at a position on the rear side in the longitudinal direction of the main body portion rather than an edge on the front side in the longitudinal direction in the rear side protruding portion,
The projecting portion has two projecting portions extending in the longitudinal direction as end portions of the projecting portion in the width direction,
The absorbent article, wherein the width dimension of the skin-side top surface of the rear-side protruding part is larger than the width dimension of the skin-side top surface of the protruding part.

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