TW201904535A - Suction pad - Google Patents

Abstract

In this urine-receiving pad, the area in which elastic members can stretch is reduced and leakages from the side are limited in a boundary region between the area in which the elastic members can stretch and the area in which the elastic members do not stretch, or the like. A urine-receiving pad (1) is equipped with: an absorbent body (2) provided with an absorbent (21); and a pair of leak-preventing walls (40, 40). Each leak-preventing wall is provided with: a base part (41) that is secured to the absorbent body; a first wall part (42) that is connected to and stands up from the base part; a second wall part (43) that is connected to and stands up from the first wall part; a first bonding part (44) that bonds the base part and the first wall part; a second bonding part (45) that bonds the first wall part and the second wall part; and a plurality of elastic members (EL). Each second bonding part includes: a bonding body (45i); and a bonding prolongation (45o) that extends from the bonding body in the longitudinal direction. Each second wall part comprises: a stretch region (SE) in which the elastic members extend in the longitudinal direction; and a non-stretch region (SU) at the outside of each end of the stretch region. The bonding prolongation extends longitudinally towards the inside of the stretch region by a specified length.

Description

Urine suction pad

The present invention relates to a urine suction pad.

A known absorbent article is provided with an absorbent body portion including an absorbent body and a pair of leak-proof walls. The leak-proof wall is to prevent the excretion fluid such as urine from leaking from the widthwise end of the absorbent article, that is, side leakage, and is located at both ends of the absorbent body in the width direction and spans both ends of the lengthwise direction. It extends continuously and stands up to the skin surface of a user. Examples of the absorbent article having such a leak-proof wall include the absorbent article disclosed in Patent Document 1 (Japanese Patent Application Laid-Open No. 2010-094321).

The absorbent article of Patent Document 1 includes an approximately sheet-shaped main body portion in which an absorbent core is disposed between a backing sheet and a top sheet, and a longitudinal direction of the main body portion across both sides of the main body portion. A pair of side lamellas arranged almost full length. The pair of side sheets are each provided with: a band-shaped bonding portion that is a portion on one side of a zigzag line that is provided across the entire length in the longitudinal direction and is bonded to the main body portion; and a side wall portion that is the foregoing A portion on the other side of the zigzag line is folded back toward the outer side in the width direction with an inner end in the width direction perpendicular to the longitudinal direction of the joint portion of the zigzag line toward the outer side in the width direction. It is folded back, and a part is erected from the main body part. The side wall portion includes two side wall end portions which are fixed to the joint portion at both end portions in the longitudinal direction, and continues from the two side wall end portions between the two side wall end portions and from the side wall portion. The zigzag line rises up, and the elastic member which arrange | positions almost the full length of the said lengthwise direction of the said riser, and it shrink | contracts the said riser to form a wrinkle. One of the two side wall end portions includes a portion continuous from the standing portion, the elastic member is disposed, and the joint portion and the main body portion are made non-joined and elastically formed by the elasticity. The half-rising portion which rises from the main body portion and which is lower than the rising portion, and a fixing portion which is adjacent to the outside of the half-rising portion in the width direction and is fixed to the joint portion. According to Patent Document 1, this absorbent article can prevent side leakage from near the end in the longitudinal direction of the absorbent article. [Habitual technical literature] [patent literature]

[Patent Document 1] Japanese Patent Laid-Open No. 2010-094321

[Problems to be Solved by the Invention]

In the absorbent article, in order to further suppress side leakage, a method of raising the leakage prevention wall more appropriately is, for example, a method including increasing the degree of expansion and contraction of the elastic member of the leakage prevention wall. Here, a urine-absorbent pad is different from a sanitary napkin, a fixed diaper, a panty-type diaper, and the like, and includes a wearer that is placed on an outer body that is used repeatedly and is not fixedly worn. In the case where the urine absorbing pad is not fixed to the exterior body, the state (natural state) when the urine absorbing pad is taken out from the packaging box and unfolded is a form at the time of approximately wearing. Therefore, if the degree of expansion and contraction of the elastic member is increased, the absorbent body portion may be excessively contracted in the length direction during wearing, and the absorbent body portion may be easily separated from the skin surface, so that it may not be easily worn properly. In addition, if the shrinkage of the urine absorbing pad in the longitudinal direction is too small, it may be seen, and the user may leave an uneasy impression. In addition, even if the urine absorbing pad used for fixing to the exterior body is improperly fixed, the user's movement may be specific, or when the fixation is detached, it may be difficult to properly wear. This problem also occurs in an absorbent article such as Patent Document 1, and an absorbent article in which a leak-proof wall is provided in a wide range (raised portion and semi-raised portion) in the longitudinal direction as far as possible in order to prevent side leakage.

Here, the present inventors reviewed that by using a technique that may be disadvantageous for preventing side leakage, the elastic member in the leak-proof wall can be narrowed to a stretchable range so that the elastic member does not shrink excessively. A structure that raises the leak-proof wall more appropriately. In this case, it is possible to suppress the absorption body portion from being excessively contracted in the longitudinal direction and the absorption body portion away from the skin surface. In addition, it is possible to suppress the urine absorption pad from becoming smaller in the longitudinal direction.

However, if the range in which the elastic member in the leak-proof wall can be expanded and contracted is narrowed as described above, the width in the longitudinal direction of the area of the absorption main body portion that supports the expansion and contraction of the elastic member in the vicinity of both ends of the elastic member is also narrowed. The area of the absorption main body portion that supports the expansion and contraction of the elastic member corresponds to the boundary area where the elastic member can expand and contract and the boundary area where the elastic member does not exist or does not extend. As a result, a relatively large force is applied to the boundary portion of the absorption body portion, and the boundary portion of the absorption body portion is deformed by being bent from the upper side in the thickness direction to the lower side, that is, from the opposite side of the skin to the non-opposing side of the skin. Deformation of side depressions may occur. In this case, by absorbing the deformation of the boundary portion of the main body portion, deformation occurs in the boundary area of the leak-proof wall, and the force of the leak-proof wall in contact with the skin may be weakened, and there may be a gap between the leak-proof wall and the skin surface. A gap occurs. In addition, the boundary area of the leak-proof wall is an area where the leak-proof wall starts to stand, so the degree of standing is small. As a result, even when the leak-proof wall stands up toward the user's skin surface during wearing, the state where the leak-proof wall and the skin surface are difficult to adhere in the boundary area may occur.

Here, an object of the present invention is to provide a urine absorbing pad, in which a stretchable range of an elastic member in a longitudinal direction is narrow, and a range in which the stretchable range of the elastic member can be suppressed, and a boundary area where the elastic member does not exist or does not expand or contract. In the side leak. [Means to solve the problem]

One aspect (Aspect 1) of the present invention is a urine absorbing pad having a length direction, a width direction, and a thickness direction, the abdomen area, the intertrochanter area, and the back area in the length direction, and an absorber An absorbent body portion; and a pair of leak-proof wall portions which are respectively located at both end portions in the width direction of the absorbent body portion and extend continuously across both end portions in the longitudinal direction; the pair of leak-proof wall portions Respectively, facing the absorption main body portion, at least the outer side end edge in the width direction is a base portion fixed to the absorption main body portion, and is connected to the widthwise inner side end edge in the base portion. A first wall portion which rises toward the opposite side of the skin at the time of wearing; and a second edge portion which is connected to the widthwise outer side edge of the first wall portion and rises toward the opposite side of the skin at the time of wearing A wall portion; and at least in the abdominal region, the base portion and the first wall portion are joined to have a predetermined length in the width direction, and the first portion extends inward from the end edge of the leak-proof wall portion in the length direction. 1 joint portion; and a second joint portion that joins the first wall portion and the second wall portion at least in the abdominal region, and has a predetermined widthwise length, and extends from the end of the leak-proof wall portion in the longitudinal direction. The edge extends toward the inner side, and includes a joining main body portion located on an end edge side of the leak-proof wall portion in the longitudinal direction, and a portion extending from the outer side of the width direction of the joining main body portion toward the longitudinal direction. An engagement extension portion extended on the inner side; and a plan view from the inner edge of the engagement body portion in the abdomen area or the position on the inner side toward the back area in the longitudinal direction. Extending, and a plurality of elastic members arranged side by side in the width direction; and the second wall portion includes: among the plurality of elastic members, the elastic member located in the second wall portion is extended and contracted in the longitudinal direction; Area, and non-stretchable areas located on both outer sides in the longitudinal direction of the telescopic area, the joint extension portion is located on the outer side in the width direction of the telescopic area and faces forward. Longitudinal direction of the inner side is extended a predetermined length in the longitudinal direction.

In the urine absorbing pad of this aspect 1, in the telescopic area of the second wall portion, a plurality of elastic members extend in the longitudinal direction and are arranged side by side in the width direction, and the joint extension portion of the second joint portion is to expand and contract. The portion on the outer side in the width direction of the field has only a fixed length or a semi-fixed length in a predetermined length direction. Therefore, in the telescopic field, the length in the longitudinal direction of the portion on the outer side in the width direction is substantially shorter than the length in the longitudinal direction of the portion on the inner side in the width direction. With this configuration, in the telescopic area of the second wall portion, the outer side portion in the width direction is extended and contracted by a relatively short range in the longitudinal direction, and the inner side portion can be relatively extended in the length direction Long range stretch. Accordingly, the second wall portion can be easily and more appropriately erected in the thickness direction. Furthermore, the joint extension portion of the second joint portion is extended from the non-telescoping area to the telescopic area. With this configuration, it is possible to relatively increase the rigidity in a region extending from the non-telescoping region in the second wall portion to the telescopic region, that is, in the boundary region. With this, even if the deformation of the absorption body portion bent from the upper side to the lower side occurs at the boundary portion corresponding to the boundary area of the absorption body portion, since the deformation of the boundary area of the second wall portion can be suppressed, the leakage prevention wall can be suppressed: The contact force between the skin facing surface of the skin and the skin surface becomes weak, and a gap occurs between the skin facing surface and the skin surface of the second wall portion of the leak-proof wall portion. Therefore, it is possible to suppress the problem in the boundary area. Side drain of fecal fluid. Furthermore, the joint extension portion of the second joint portion is extended from the non-telescoping area to the telescopic area, and the second wall portion is joined to the first wall portion. With this configuration, the surface on the opposite side of the skin of the second wall portion can maintain the surface on the side of the opposite side of the skin of the absorption body portion in the boundary area spanning the non-telescoping area in the second wall portion. Roughly parallel planar shape. Therefore, it is possible to increase the contact accuracy between the skin-opposing surface and the skin surface of the second wall portion. As a result, structurally, in the boundary area where the degree of standing is small, it is assumed that even if the rigidity of the second wall portion is deformed, the force of the leak-proof wall portion to contact the skin surface is weakened, and it is between a part of the skin surface A gap occurs, and since the surface on the opposite side of the skin and the skin surface of the second wall portion are almost in contact with each other, it is possible to prevent the excretory fluid from moving to any of the faces while the excretory fluid crosses the surface. Therefore, it is possible to suppress the side leakage of the excretion fluid in the border area. In this way, in the leak-proof wall portion, it is easy to raise the second wall portion more appropriately to suppress side leakage, and to suppress the occurrence of gaps in the second wall portion, and to easily follow the skin surface, and by raising the second wall The contact accuracy of the skin-to-skin contact between the skin and the skin can further suppress side leakage.

Furthermore, in another aspect (Aspect 2) of the present invention, with respect to the urine absorbing pad of Aspect 1, the absorbent body has a width of the absorbent body in the area of the interfemoral region when viewed from a plan view. Both end edges in the direction are narrow portions that shrink toward the inner side of the width direction, and the ends of the narrow region on the abdominal region side are positioned in the longitudinal direction in the longitudinal direction of the joint extension portion. The scope of the overlapping fields.

In the urine absorbing pad of the second aspect, the end portion of the narrow portion having a relatively low rigidity in the absorbent body is disposed in a region overlapping the range in the longitudinal direction of the joint extension portion. That is, the end portion of the narrow portion that is easily deformed in the thickness direction is provided at a position corresponding to the joint extension portion. Here, the rigidity of the part joined by the joining extension part in the 2nd wall part is relatively high. Therefore, even if deformation has occurred at the end of the narrow portion, the deformation of the second wall portion can be suppressed, and a gap can be prevented from occurring between the skin-opposing surface and the skin surface of the second wall portion, and the second wall portion can be deformed. The surface on the opposite side of the skin gently deforms along the curved surface of the skin surface.

In a further aspect of the present invention (Aspect 3), in the urine absorbing pad of Aspect 1 or 2, the aforementioned elastic member located in the second wall portion among the plurality of elastic members is the aforementioned The end portion on the side of the abdominal region has a position in the longitudinal direction that is located in a region overlapping the range in the longitudinal direction of the joint extension portion.

In the urine absorbing pad of the third aspect, the end portion located on the abdominal region side of the elastic member in the second wall portion is located in a region overlapping the range in the longitudinal direction of the joint extension portion. Therefore, compared with the case where the end portion of the elastic member is located on the outer side than the joint extension portion in the longitudinal direction, the bending condition can be relatively relaxed when the absorption body portion is bent from the upper side to the lower side in the thickness direction. . Thereby, in the portion which can be bent in the thickness direction of the absorption main body portion, deformation of the second wall portion can be more suppressed, and a gap can be generated between the surface on the skin-opposing surface side of the leak-proof wall (second wall portion) and the skin surface. , The surface on the opposite side of the skin of the second wall portion can be more gently deformed along the curved surface of the skin surface.

In a further aspect of the present invention (Aspect 4), in the urine absorbing pad of any of Aspects 1 to 3, the absorbent body has a surface from the absorbent body in the thickness direction. An opening portion extending inwardly and extending in the longitudinal direction, and at least a part of the opening portion, the position in the longitudinal direction is located in an area overlapping the range in the longitudinal direction of the joint extension portion.

In the urine absorbing pad of this aspect 4, the absorbent body has an opening portion (including a through hole), and at least a part of the opening portion has a position in the longitudinal direction that overlaps with a range in the longitudinal direction of the joint extension portion. field. That is, at least a part of the portion including the opening portion in the absorbent body having low rigidity, easy deformation, and the absorbent body is provided at a position corresponding to the joint extension portion. Here, the rigidity of the part joined by the joining extension part in the 2nd wall part is relatively high. Therefore, even if the portion including the opening portion in the absorbent body is deformed, the deformation of the second wall portion can be suppressed, and a gap between the surface on the skin-opposing surface side of the second wall portion and the skin surface can be suppressed. The surface of the skin facing surface of the 2 wall portion is gently deformed along the curved surface of the skin surface.

In a further aspect of the present invention (Aspect 5), in the urine absorbing pad according to any one of Aspects 1 to 1, the absorbent body includes a plurality of absorbent bodies which are respectively disposed to extend in the longitudinal direction. A pair of embossed portions in the widthwise first area and the widthwise second area that are divided by the central axis in the widthwise direction and are recessed from the opposite side of the skin toward the thickness direction, and the abdomen area side of the lengthwise direction in the embossed portion The position of the end portion in the longitudinal direction is located in a region overlapping the range in the longitudinal direction of the joint extension portion.

In the urine absorbing pad of this aspect 5, the absorbent body includes a pair of embossed portions, and the end portion on the abdomen region side in the longitudinal direction of the embossed portion is located at the position where it is engaged with the extension portion. Areas where the range of the length direction overlaps. That is, compared with the embossed portion, the rigidity is relatively low, the shape is easily deformed, and the portion on the outer side of the end portion in the longitudinal direction of the embossed portion is provided at a position corresponding to the joint extension portion. Here, the rigidity of the part joined by the joining extension part in the 2nd wall part is relatively high. Therefore, the deformation of the second wall portion can be suppressed even if deformation has occurred on the outer side of the end portion in the longitudinal direction of the embossed portion, and the surface on the opposite side of the skin and the skin surface on the second wall portion can be suppressed. When a gap occurs, the surface of the skin facing side of the second wall portion can be gently deformed along the curved surface of the skin surface.

In a further aspect of the present invention (Aspect 6), with respect to the urine absorbing pad of any of Aspects 1 to 5, in the aforementioned telescopic area, the portion on the inner side of the width direction is larger than It is easier to shorten the portion on the outer side in the width direction.

In the urine absorbing pad of the aspect 6, the portion on the inner side in the width direction of the telescopic area is more easily shortened than the portion on the outer side in the width direction. Thereby, the part on the inner side in the width direction in the second wall portion can be easily erected with respect to the part on the outer side in the width direction. Therefore, the second wall portion can be easily erected, and the erected structure can be easily maintained.

In a further aspect of the present invention (Aspect 7), with respect to the urine absorbing pad of any of Aspects 1 to 6, the pair of leak-proof wall portions each has a length along the aforementioned length. The length of the elastic member located on the fixed end portion of the plurality of elastic members, the fixed end portion fixedly engaged with the absorption body portion in a direction and the free end portion opposite to the fixed end portion in the width direction, The length in the direction is longer than the length in the longitudinal direction of the elastic member located on the free end portion side.

In the urine absorbing pad of the seventh aspect, the length of the plurality of elastic members in the longitudinal direction of the elastic member located on the fixed end side is longer than the length of the elastic members located on the free end side. Therefore, in the portion on the outer side in the width direction of the leak-preventing wall portion, the rising structure that is easily generated by the first wall portion and the second wall portion is maintained, and it is possible to more securely protect the outer side facing the width direction. Excretory durability. In addition, in the inner side portion in the width direction of the leak-proof wall portion, the degree of freedom of deformation and movement is high, and the leak-proof wall portion can be easily made dense while following the shape of the user's body (the shape of the intertrochanter portion). Together. Accordingly, the urine absorbing pad can satisfactorily exert the leak prevention function of the leak prevention wall portion.

In a further aspect of the present invention (Aspect 8), with respect to the urine absorbing pad of any one of Aspects 1 to 7, the pair of leak-proof wall portions further includes: Wherein the base portion and the first wall portion are joined to have a predetermined length in the width direction, and extend from the end edge of the leak-proof wall portion toward the inward side in the length direction, and are opposite to the first joint portion in the length direction. The facing third joint portion and the fourth joint portion join the first wall portion and the second wall portion in the back area, and have a predetermined widthwise length, and extend from the leak-proof wall in the length direction. The end edge of the portion extends inwardly and faces the second joint portion in the longitudinal direction, and includes a back joint body portion located on the end edge side of the leak-proof wall portion in the longitudinal direction, and a portion from the back portion. The back joint extension portion of the main body portion extending from the outer side in the width direction toward the inner side in the length direction; the plurality of elastic members are, when viewed from above, in the longitudinal direction from Aforementioned back collar The back edge of the back joint main body portion or the position of the inner side thereof extends toward the abdominal region, and the back joint extension portion faces the outer side of the width direction of the telescopic area toward the outer side. The inner side of the longitudinal direction is extended by a length in a predetermined longitudinal direction.

In the urine absorbing pad of the eighth aspect, with the above-mentioned configuration, even in the back area side, the outer side portion in the width direction can be shortened in the length direction in the telescopic area of the second wall portion. The expansion and contraction expands and contracts an inner side portion from a long range in the longitudinal direction. Accordingly, the second wall portion can be easily and more appropriately erected in the thickness direction. Further, in the back area side, the rigidity of the boundary area can be relatively increased, whereby even if the deformation of the absorption body portion is bent from the upper side to the lower side, the deformation occurs at the boundary portion of the boundary area corresponding to the absorption body portion, because Deformation at the boundary region of the second wall portion can be suppressed, so that the skin contact surface of the leak-proof wall portion can be prevented from weakening the force of contact with the skin surface, and the surface on the skin-opposing surface side of the second wall portion of the leak-proof wall portion can be suppressed. Since a gap occurs between the skin and the skin surface, it is possible to suppress the side leakage of the excretion fluid in the junction area. Furthermore, in the back area, structurally, in the area of a small boundary, it is assumed that even if the rigidity of the second wall portion is deformed, the force of the leak-proof wall portion to contact the skin surface is weakened. A gap has occurred between the skin-opposing surface and the skin surface of the second wall portion, and the skin surface can be prevented from moving toward any one side of the surface while the fluid is crossing the surface. Therefore, it is possible to suppress the side leakage of the excretion fluid in the border area. In this way, in the leak-proof wall portion, not only the abdominal area side, but also the back area side, the second wall portion can be more appropriately erected to easily suppress side leakage, and the occurrence of gaps in the second wall portion can be suppressed. It is easy to follow the skin surface, and by increasing the contact accuracy between the second wall portion and the skin surface, side leakage can be further suppressed.

In a further aspect of the present invention (Aspect 9), in the urine absorbing pad of Aspect 8, the length in the longitudinal direction of the telescopic area is longer than the length of the second joint in the abdominal area. The total length of the length in the longitudinal direction and the length in the longitudinal direction of the fourth joint portion in the back region is smaller.

The urine absorbing pad of this aspect 9 is the length in the longitudinal direction of the telescopic area, and is smaller than the total length of the length of the second joint portion and the length of the fourth joint portion. Therefore, it is possible to suppress excessive contraction of the urine absorbing pad when worn. Furthermore, when the user sleeps in the horizontal direction, since the telescopic area of the second wall portion is supported by an area other than the telescopic area of the second wall portion, the standing shape of the telescopic area can be maintained, so it is difficult for the excretion fluid to exceed the first telescopic area. 2 wall sections.

In a further aspect of the present invention (Aspect 10), with respect to the urine-absorbing pad of any of the above-mentioned aspects 1 to 8, the urine-absorbing pad is folded at a plurality of positions in the longitudinal direction during packaging. Is folded along a fold line extending in the width direction. Among the plurality of fold positions, the fold position on the side of the abdomen region is located inward of the longitudinal direction of the joint extension portion of the second joint portion. The side edge is more inward.

In this urine absorbing pad, the folding position on the most abdominal region side is located on the inner side than the inner side end edge in the longitudinal direction of the joining extension portion of the second joining portion. That is, the folded position does not overlap the first joint portion and the second joint portion. Therefore, when the folded urine absorbing pad is released, the first wall portion and the second wall portion do not form a fold line that easily causes side leakage, and can effectively use the second joint portion (joint extension portion). Side leakage prevention function. [Effect of the invention]

According to the present invention, it is possible to provide a urine absorbing pad with a narrow range of elastic members in the longitudinal direction, and can suppress the range where the elastic members can expand and contract and the sides in the boundary area where the elastic members do not exist or do not extend. leak.

Hereinafter, preferred embodiments of the absorbent article of the present invention will be described in detail with reference to the drawings. In addition, in this specification, unless otherwise stated, "an object to be placed on a horizontal surface in an unfolded state (example: absorbent article, absorbent body portion, absorbent body, etc., the same below) from above in the vertical direction The side (the surface sheet side when the object is an absorbent article or an absorbent body portion) is referred to as the thickness direction of the object, and is simply referred to as "viewed from above." Here, the "expanded state" means a state where an object placed on a horizontal plane is extended along a horizontal plane, and further, an extended state is released from the extended state (example: the object is made of an elastic member) Wait for a certain degree of contraction, etc.), is called "natural state."

The various directions and the like used in this specification are as follows unless otherwise stated. "Longitudinal direction" means "a direction in which the length of a vertically long object when viewed from the top", and "widthwise direction" means "a direction in which the length of a vertically long object when viewed from the top is short (width direction)", The "thickness direction" means "a direction perpendicular to an object placed on a horizontal plane in an expanded state". These longitudinal directions, width directions, and thickness directions have a relationship of perpendicularly crossing each other. The longitudinal direction, width direction, and thickness direction of the absorbent article correspond to the longitudinal direction, width direction, and thickness direction of the absorbent body portion and the absorbent body constituting the absorbent article, respectively. Further, the "dotted line located in the center of the object in the longitudinal direction and extending in the width direction" is referred to as "the longitudinal axis C _W ". The "relatively proximal side with respect to the central axis C _W in the longitudinal direction" is referred to as the "inner side in the longitudinal direction", and the "relatively far side with respect to the central axis C _W in the longitudinal direction" is the "outer side in the longitudinal direction"". Similarly, the "dotted line located in the center of the object in the width direction and extending in the length direction" is referred to as the "width-direction central axis C _L ". The "width direction central axis C _L opposite the proximal side," referred to as "width direction inner side", the "width direction central axis C _L opposite distal side" referred to as "width direction outer side ". The "area corresponding to the abdomen of the user when the absorbent article is worn in the longitudinal direction of the absorbent article, the absorbent body portion, or the absorbent body" is referred to as the "abdominal area". "A region corresponding to the user's back to hips when the absorbent article is worn in the longitudinal direction of the absorbent article, the absorbent body portion, or the absorbent body" is referred to as a "back region". The "area between the abdomen area and the back area in the lengthwise direction of the absorbent article or the absorbent body portion, which corresponds to the user's intersegmental portion when the absorbent article is worn" is referred to as the "interstitial area" . Here, "when wearing" means a period of time (a period of wearing) when the absorbent article is worn by the user (that is, a point at which a usable state is formed). In the absorbent article, in the thickness direction of the absorbent body or the absorbent body, "the skin surface of the user is relatively near the side when the absorbent article is worn" is referred to as "skin-facing side", and " When the absorbent article is worn, the user's skin side is relatively far side "is called" non-skin opposite side ". In addition, the "skin-facing surface" and "non-skin-facing surface" of the absorbent article and various constituent members (examples: absorbent body, surface sheet, absorbent body, back sheet, side sheet, etc.), They are also called "skin-facing side" and "non-skin-facing side".

FIG. 1 is a plan view of a urine suction pad 1 according to an embodiment of the present invention in a developed state. FIG. 2 to FIG. 6 are end views in a natural state of a cross section taken along line II-II to VI-VI in FIG. 1 of the urine absorbing pad 1, respectively. FIG. 7 is a perspective view of the urine absorbing pad 1. FIG. As shown in FIG. 1, the urine absorbing pad 1 according to an embodiment of the present invention has a shape including a longitudinally long outer shape and a longitudinal direction L and a width direction W when viewed from above. substantially central portion (i.e., portion a _C field portion corresponding to the crotch) is an external shape having a width direction W toward the inner side of the smaller shrinkage of approximately sand clock shape. In the present invention, the shape of the outer shape of the absorbent article is not limited to this aspect, and if the length dimension in the longitudinal direction L is longer than the width dimension in the width direction W, it can be used for various applications, etc. Arbitrary vertical shapes (examples: rectangular, oval, oval, gourd, etc.). The lengthwise direction L, the widthwise direction W, and the thickness direction T of the urine absorbing pad 1 are similarly used for each member constituting the urine absorbing pad 1.

As shown in FIG. 1, the urine absorbing pad 1 of this embodiment is composed of an absorbent body portion 2 and a pair of side sheets 4 and 4 (leak-proof wall portions). The absorptive body portion 2 includes an abdomen area A _F , an interfemoral area A _C, and a back area A _B in the longitudinal direction L, and includes an absorber 21. The pair of side sheets 4 and 4 are located at both end portions in the width direction W of the absorption body portion 2 and extend continuously across both end portions in the longitudinal direction L. In this case, both end edges of the longitudinal direction L in the interfemoral region A _C are positions where the absorptive body portion 2 of the abdominal region A _F and the back region A _B begin to narrow in the width direction W. The ratio of the lengths in the abdomen area A _F , the interfemoral area A _C, and the back area A _B in the longitudinal direction can be variously changed according to the age and gender of the user, and examples include 25 to 35:30 to 40:35 to 45.

As shown in FIGS. 1 to 6, the absorbent body portion 2 includes a liquid-permeable surface sheet 22 on the skin-opposing surface side and a liquid-impermeable surface on the skin-opposing surface side in the thickness direction T. The back sheet 23 and the absorbent body 21 which are located between these sheets can absorb and hold the excretion liquid such as urine. The absorber 21 in this embodiment includes a first absorbent layer 21A on the skin-opposing surface side and a second absorbent layer 21B on the non-skin-opposing surface side. The absorbing body portion 2 is configured to be absorbed and held by the absorbent body 21 while permeating liquid such as urine discharged from the user in the thickness direction T.

The pair of side sheets 4, 4 (leak-proof wall portions) are facing the absorption body portion 2 on the skin-opposing surface side of the absorption body portion 2 (the surface sheet 22) as shown in Figs. 1 to 6. Yes, both ends in the width direction W of the absorption main body portion 2 are continuously extended across both ends in the length direction L (that is, the belly region side end portion and the back region side end portion in the length direction L). Configuration. Furthermore, each of the pair of side sheets 4 and 4 has a free end portion located on the inner side of the width direction W of the absorption body portion 2 and having a surface on the side opposite to the skin of the absorption body portion 2 that is not joined; and A fixed end portion of the outer side in the width direction W of the absorbent body portion 2 that is in contact with a surface on the skin-opposing surface side of the absorbent body portion 2. The pair of side sheets 4 and 4 are the end edges of the inner side of the width direction W when the urine absorbent pad 1 is worn (that is, the inner side end edges of the width direction W). ) Are a pair of leak-proof wall portions 40 and 40 that stand up toward the skin-opposing surface side and form a leak-proof wall functioning as a leak-proof wall that can prevent side leakage of fecal fluid such as urine discharged from the user.

As shown in FIG. 1, the pair of side sheets 4 and 4 are in the vicinity of the inner side end edge in the width direction W, and a plurality of elastic members EL are arranged along the length direction L. The elastic member EL shrinks the pair of side sheets 4, 4 and further the urine absorbing pad 1 in the longitudinal direction L, and promotes the rising of the inner side edge of each of the pair of side sheets 4, 4 in the width direction W. . In the present embodiment, the plurality of elastic members EL are respectively formed in a pair of leak-proof wall portions 40 and 40 and extend in the longitudinal direction L from a plan view, and the free end and the fixed end in the width direction W Departments are arranged side by side. The plurality of elastic members EL are arranged in the longitudinal direction at the substantially central portions of the pair of leak-proof wall portions 40 and 40, and specifically include the interfemoral portion from the inner side end of the approximate abdominal area A _F The range from the partial area A _C to the end on the inner side of the back area A _B. However, the elastic member EL means a portion having elastic force in the elastic member and a portion connected to the portion having elastic force, but the portion having no elastic force is not included in the elastic member EL. For example, a portion having no elasticity can be fixed to a sheet by, for example, an adhesive, and the portion cannot be stretched. In this embodiment, two elastic members EL1 and EL1 are disposed on the inner side of each pair of leak-proof wall portions 40 and 40 in the width direction W, and one elastic member EL is disposed on the outer side. Two elastic members EL2 and EL2 are arranged between the two elastic members EL3.

In the urine absorbing pad 1 of this embodiment, a pair of leak-proof wall portions 40 and 40 formed by a pair of side sheets 4 and 4 are provided as shown in Figs. 2 to 6 respectively. : Base portion 41, first wall portion 42, and second wall portion 43. The base portion 41 faces the absorbent body portion 2 and is fixed to the absorbent body portion 2 at least on the outer side end edge in the width direction W. The first wall portion 42 is connected to the skin-opposite side of the base portion 41 and the inner side end edge in the width direction W of the base portion 41 and rises toward the skin-opposite side when wearing (specifically, the length L The inner side part stands up toward the opposite side of the skin). The second wall portion 43 is connected to the skin-opposing surface side of the first wall portion 42 and the outer side end edge in the width direction W of the first wall portion 42 and rises toward the skin-opposing surface side when worn (specifically, In other words, the part on the inner side in the longitudinal direction L stands up toward the opposite side of the skin).

The pair of leak-proof wall portions 40 and 40 include the first joint portion 44 and the second at least in the abdominal area A _F (preferably also in the back area A _B ), as shown in FIG. 1 and FIG. 5, respectively.接 部 45。 The joint portion 45. In the present embodiment, the first joint portion 44 is a portion that joins the base portion 41 and the first wall portion 42 (specifically, the outer side portion in each longitudinal direction L of the base portion 41 and the first wall portion 42 is joined). ) Has a predetermined widthwise length, and extends inward in the lengthwise direction L from the edge of the leak-proof wall portion 40. The second joining portion 45 joins the first wall portion 42 and the second wall portion 43 (specifically, the outer side portion in each longitudinal direction L of the first wall portion 42 and the second wall portion 43 is joined. ) Has a predetermined widthwise length, and extends inward in the lengthwise direction L from the edge of the leak-proof wall portion 40. In this embodiment, the end edge on the outer side of each length direction L of the first joining portion 44 and the second joining portion 45, that is, the end edge in the length direction L of the leak-proof wall portion 40 is the length of the side sheet 4. The edge in the direction L.

The second joint portion 45 includes a joint body portion 45 _i and a joint extension portion 45 _O. The joint body portion 45 _i is a portion on the edge side of the leak-proof wall portion 40 in the longitudinal direction L. Engaging the extended portion 45 _O, outer side engaging part 45 _i the widthwise direction W of the body portion, the end edge to the inner side L of the longitudinal direction of the longitudinal direction of the body from the engagement portion 45 _i of the inner side of the L The inter-strand area A _C is extended by a length in a predetermined length direction up to a halfway position. For the length in the width direction of the joint body portion 45 _i (that is, the width direction length on the outer side of the length direction L in the second joint portion 45), the width direction length of the joint extension portion 45 _O (that is, the second joint portion 45) The ratio of the length in the width direction on the inner side in the longitudinal direction L) is, for example, 30% to 70%. By being in this range, the function of the joint extension portion 45 _O such as improving the rigidity of the second wall portion 43 can be fully exerted. The ratio of the width direction length of the second wall portion 43 to the width direction length of the second joint portion 45 (that is, the width direction length of the joint body portion 45 _i ) may be, for example, 30% to 80%. With this range, the function of the second joint portion 45 can be fully exerted. This case, joining the longitudinal direction 45 _O extended portion L of the inner side edge 45E _O, is located more than the engagement length direction of the body portion 45 _i of the inner side edge L of 45E _i greater longitudinal direction L of the inner side .

The plurality of elastic members EL have, in a plan view, one end portion in the length direction L, which is an end edge 45E _i on the inner side of the joint body portion 45 _i in the abdomen area A _F in the length direction L or Its inner side position. The other end in the longitudinal direction L is located at a predetermined position in the back region A _B.

The second wall portion 43 includes a stretchable stretchable area S _E extending in the longitudinal direction L and non-stretchable non-stretchable areas S _U located on both sides of the stretchable area S _E in the longitudinal direction L. The stretchable area S _E and the non-stretchable area S _U are formed in the longitudinal direction L by the elastic members EL1, EL2 and the second joint portion 45 of the second wall portion 43 among the plurality of elastic members EL. That is, the telescopic area S _E is an area that can be extended and contracted in the longitudinal direction by disposing the elastic member EL in the longitudinal direction L. On the other hand, in the non-stretchable area S _U , the elastic member EL is not disposed in the longitudinal direction L, and / or the elastic member EL is disposed in the longitudinal direction L, but is fixed by a joint portion such as an adhesive. Field that is not scalable. However, in a non-scalable area, it is preferable to expand and contract only an area less than 5% of the original length for an area with a lower degree of expansion and contraction under the same load than in a scalable area.

In the second wall portion 43 and the further leak-proof wall portion 40, the area extending from the non-telescoping area S _U across the telescopic area S _E is a boundary area where the degree of expansion and contraction changes drastically, so it is called a boundary area B _A. Here, the boundary area B _A is a predetermined ratio of the length in the longitudinal direction of the telescopic area _SE on the inner and outer sides of the longitudinal direction L based on the boundary between the non-telescopic area _SU and the telescopic area _SE . Range of length. The range of the boundary area B _{A is} in the range of 5 to 20% of the length in the longitudinal direction of the stretch area S _E in this embodiment. In other words, the boundary area B _A ranges from the boundary between the non-stretchable area S _U and the stretchable area S _E to the non-stretchable area S _U side with a length of 5 to 20%, and the stretchable area S _E side is 5 to 20% length range. The portion corresponding to the absorbing body portion 2 in the boundary area B _A , that is, the boundary portion, is a portion that supports the expansion and contraction of the elastic member EL near the both ends of the elastic member EL. Therefore, a large force is applied to the boundary portion of the absorbing body portion 2 by the expansion and contraction of the elastic member EL, that is, the extension of the expansion and contraction area _SE .

In this embodiment, the joint extension portion 45 _O is extended from the outer side portion of the second joint portion 45 in the width direction W toward the inner side in the length direction L, that is, from the non-stretchable area S _U ( The joint body portion 45 _i ) is extended across the telescopic area _SE . In other words, the joint extension portion 45 _O is extended in the boundary area B _A. In the present embodiment, the joint extension portion 45 _O is an outer side in the width direction W in the telescopic area _SE and is extended toward the inner side in the length direction L by a length in a predetermined length direction. However, the length in the predetermined length direction is a length in the length direction from the inner side end edge 45E _{i of the} joining main body portion 45 _{i to} the end edge of the boundary area B _A in the telescopic area _SE . The edge of the boundary area B _A in S _E exceeds the length of the inner side. In this embodiment, among the lengths in the predetermined length direction, the length in the telescopic area _SE is 5 to 20% of the length in the longitudinal direction of the telescopic area _SE , and is preferably a length in the range of 10 to 15%. If the length in the predetermined length direction is within this range, the function of the joint extension portion 45 _O such as improving the rigidity of the second wall portion 43 can be fully exerted. In the present embodiment, the elastic member EL2 of the second wall portion 43 among the plurality of elastic members EL overlaps with the engaging extension portion 45 _O protruding in the longitudinal direction L. However, the engagement extension portion 45 _O, it is not necessary to fix the elastic member EL to become completely unable to completely retractable state, telescopically some extent, it can be said semi-fixed condition may be. In the telescopic area _SE , the length in the longitudinal direction of the portion on the inner side in the width direction W is longer than the length in the longitudinal direction of the portion on the outer side in the width direction W.

As shown in FIG. 1, the absorber 21 is arrange | positioned in the absorber main-body part 2 from the top view. Specifically, the abdomen region side edge 21E ₂ (preferably the back region side edge 21E ₁ ) in the longitudinal direction L of the absorber 21 is also located in the joint body portion 45 i of the second joint portion 45. The inner side end edge 45E _i on the innermost side in the length direction L is more on the outer side in the length direction L. Moreover, both end edges in the width direction W of the absorber 21 (that is, one side end edge 21E ₃ and the other side end edge 21E ₄ in the width direction W) are in the abdominal area A _F (preferably also on the back). The area A _B ) is located on the outer side in the width direction W than the inner side end edge in the width direction W of the base portion 41.

Next, the operation of the urine absorbing pad 1 will be described with reference to FIGS. 1 to 7. FIG. 7 is a perspective view of the urine absorbing pad 1. FIG. In the urine absorbing pad 1, in the telescopic area S _{E of} the second wall portion 43, a plurality of elastic members EL1 and EL2 extend in the longitudinal direction L and are arranged side by side in the width direction W, and the second wall portion 43 The joint extension portion 45 _O fixes the portion on the outer side of the width direction W of the telescopic area S _E only in a predetermined length direction or is semi-fixed. Therefore, in the telescopic area _SE , the length in the longitudinal direction of the portion on the outer side in the width direction W is substantially shorter than the length in the longitudinal direction of the portion on the inner side in the width direction W. With this configuration, in the telescopic area S _{E of} the second wall portion 43, the outer side portion in the width direction W can be extended and contracted by a short range in the longitudinal direction L, so that the inner side portion can be in the longitudinal direction L. Stretched by a long range. This makes it possible to easily raise the second wall portion 43 in the thickness direction T. Furthermore, the joint extension portion 45 _{O of} the second joint portion 45 is extended from the non-stretchable area S _U on the abdominal area A _F side across the stretchable area S _E on the interfemoral area area A _C side. With this structure, the area where the joint extension portion 45 _O in the second wall portion 43 exists, that is, from the non-stretchable area S _{U to} the stretchable area S _E area, that is, the boundary area B _A , can be relatively rigid. To improve. As a result, as shown in FIG. 7, even if the deformation of the absorbent body portion 2 from the upper side to the lower side in the thickness direction T is caused by the boundary portion corresponding to the boundary area B _A of the absorbent body portion 2, the second Deformation of the boundary area B _A of the wall portion 43. Therefore, it is possible to suppress a decrease in the force of the skin-facing surface of the leak-proof wall portion 40 coming in contact with the skin surface, and a gap between the surface of the skin-facing surface side of the second wall portion 43 of the leak-proof wall portion 40 and the skin surface. Therefore, it is possible to suppress the side leakage of the excretory fluid P in the junction area B _A. Further, the joint extension portion 45 _{O of} the second joint portion 45 is extended from the non-stretchable area S _U on the abdominal area A _F side across the stretch area S _E on the interfemoral area area A _C side, and the second wall The portion 43 is joined to the first wall portion 42. With this configuration, as shown in FIG. 3, in the boundary area B _A in the second wall portion 43, the surface on the skin-opposing surface side of the second wall portion 43 can be maintained to be opposite to the skin absorbing the body portion 2. The surface on the surface side has a substantially parallel planar shape. Therefore, it is possible to increase the contact accuracy between the skin-opposing surface and the skin surface of the second wall portion 43. As a result, structurally, the boundary area B _A with a small degree of standing up is assumed that even if the rigidity of the second wall portion 43 is deformed, the force of the leak-proof wall portion 40 in contact with the skin becomes weak, and the skin contacted with a part of the skin. A gap occurs between the faces, and since the surface on the opposite side of the skin and the skin surface of the second wall portion 43 are almost in contact with each other, as shown in FIG. Move anywhere on the face. Thus, it is possible to suppress side leakage of excretions of the boundary field B _A. In this way, in the leakage prevention wall portion 40, it is easy to raise the second wall portion 43 more appropriately to prevent side leakage, suppress the occurrence of the gap of the second wall portion 43, and easily follow the skin surface. The contact accuracy of the wall portion 43 in contact with the skin surface can further suppress side leakage.

Further, in the urine absorbing pad 1 of the present embodiment, it is preferable that the pair of leak-proof wall portions 40 and 40 also include first joint portions in the back region A _B and the abdomen region A _F , respectively. 44 and the second joint portion 45 have the same configuration. That is, the pair of leak-proof wall portions 40 and 40 are respectively in the abdominal region A _F , and further include a third joint portion (hereinafter, referred to as “third joint portion 44”) similar to the first joint portion 44, And a fourth joint portion (hereinafter, referred to as a "fourth joint portion 45") similar to the second joint portion 45. The third joining portion 44 joins the base portion 41 and the first wall portion 42 in the back area A _B and has a predetermined widthwise length. The third joining portion 44 extends inward from the end edge of the leak-proof wall portion 40 in the longitudinal direction L. , Facing the first joint portion in the abdominal area A _F and the longitudinal direction L. The fourth joining portion 45 joins the first wall portion 42 and the second wall portion 43 in the back area A _B and has a predetermined widthwise length, and faces inward from the end edge of the leak-proof wall portion 40 in the length direction L. It extends on the side and faces the second joint portion 45 of the abdominal area A _F in the longitudinal direction L. The fourth joint portion 45 is a portion including the back joint body portion 45 _i located on the edge side of the leak-proof wall portion 40 in the longitudinal direction L and the outer side of the width direction W of the main body portion 45 _i joined from the back. The back joint extension portion 45 _O extended toward the inner side of the length direction L is extended. The plurality of elastic members EL are, in a plan view, the end edges 45E _{i of} the inner side of the main body portion 45 _i from the back in the back region A _B in the longitudinal direction L or the positions on the inner side thereof are directed toward the abdomen region A. _F extends. Further, the back joint extension portion 45 _O is extended on the outer side in the width direction W of the telescopic area S _E on the back area A _B side toward the inner side in the length direction L, and is extended by a length in a predetermined length direction.

With the above-mentioned configuration, in this urine absorbing pad 1, not only the abdomen area A _F side but also the back area A _B side, in the telescopic area S _{E of} the second wall portion 43, the width W The part on the square side is stretched from the short range in the length direction L, and the part on the inner side is stretched from the long range in the length direction L. Accordingly, the second wall portion 43 can be easily and more appropriately erected in the thickness direction T. In addition, the rigidity of the junction area B _A can be relatively increased on the back area A _B side, thereby absorbing the deformation of the body portion 2 that is bent from the upper side to the lower side in the thickness direction T even if it is corresponding to the absorption body portion 2. _A boundary portion of the boundary area B _A is generated, and deformation of the boundary area B _A of the second wall portion 43 can still be suppressed. With this, it is possible to suppress the skin contacting surface of the leak-proof wall portion 40 from weakening the force of contact with the skin surface, and the occurrence between the surface of the skin-opposing surface side of the second wall portion 43 of the leak-proof wall portion 40 and the skin surface. gap, can be suppressed from leaking sideways of excretion art B _a solution of the boundary. Further, in the back area A _B , a small boundary area B _{A is} erected structurally. It is assumed that even if the rigidity of the second wall portion 43 is deformed, the force of the leak-proof wall portion 40 to contact the skin is weakened. A gap occurs between a part of the skin surface and the surface on the skin-opposing side of the second wall portion 43 and the skin surface are almost in contact with each other. Therefore, it is possible to prevent any of the excretory fluid from facing the surface while the excretory fluid crosses the surface. Move around. Thus, it is possible to suppress side leakage of excretions of the boundary field B _A. In this way, in the leak prevention wall portion 40, not only the abdominal area A _F side but also the back area A _B side, it is easy to raise the second wall portion 43 more appropriately to prevent side leakage, and to suppress the second wall portion 43. The occurrence of the gap is easy to follow the skin surface, and by increasing the contact accuracy of the second wall portion 43 and the skin surface, the side leakage can be further suppressed.

Hereinafter, various members constituting the absorbent article of the present invention will be described in more detail using the urine absorbing pad 1 of the above-mentioned embodiment.

<Absorbent body part> In the urine absorbing pad 1 according to an embodiment of the present invention, as shown in FIG. 1, the absorbent body part 2 has a vertically long shape that becomes a shape of the urine absorbing pad 1 when viewed from a plan view. The shape (that is, the portion corresponding to the interstrand region A _C in the length direction L is an approximately sand-clock-shaped outer shape that narrows toward the inner side in the width direction W). Moreover, in the present invention, the shape of the outer shape of the absorbing body portion is not limited to that of this embodiment, and if the length dimension in the longitudinal direction is a long shape longer than the width dimension in the width direction, it can be used for various purposes, etc. Use any shape (such as rectangle, oval, gourd, etc.). Further, in the present invention, various sizes such as the length in the longitudinal direction, the length in the width direction, and the length (thickness) in the thickness direction of the absorbent main body portion are such that the absorbent main body portion has a predetermined absorptivity and flexibility, and is suitable for the body shape of the user The suitability and the like are not particularly limited, and any size can be adopted according to the size and sex of the wearer, the absorption target, the use, and the like.

As shown in FIG. 1 to FIG. 6, the main absorbent body portion 2 is a main constituent member in the thickness direction T and includes a liquid-permeable surface sheet 22 on the skin-opposing surface side and a non-skin-opposing surface side. Liquid-impermeable back sheet 23, and an absorbent body including two layers of absorbent layers (first absorbent layer 21A and second absorbent layer 21B) located between these sheets and capable of absorbing and retaining excretory fluid such as urine. twenty one. In this embodiment, the absorbent body portion 2 is further provided with a liquid-impermeable backing film 24 on the skin-facing side of the back sheet 23 (between the absorber 21 and the back sheet 23).

Hereinafter, the various constituent members of the absorbent body portion 2 that can be used in the urine absorbing pad 1 of the present invention will be described in more detail using the above-mentioned embodiments.

[Surface Sheet] In the above-mentioned embodiment, the surface sheet 22 disposed on the skin-opposing surface side of the absorption body portion 2 is as shown in Figs. The lengthwise direction of the abdomen region side end portion extends across the back region side end portion and spans from the vicinity of one side end edge 21E ₃ of the width direction W of the absorbent body 21 in the absorption body portion 2 to the other side end edge. 21E ₄ extends in the vicinity and has a shape of a substantially rectangular outer shape with a lengthwise length in the longitudinal direction L as a whole. The size and shape of the surface sheet are not particularly limited as long as they can cover most of the surface on the skin-opposing surface side of the absorber (for example, 50% of the surface area on the skin-opposing surface side of the absorber). Any size and shape can be adopted for various applications. In the above-mentioned embodiment, as shown in FIG. 1 to FIG. 6, the surface sheet 22 is arranged in the thickness direction T of the absorption body portion 2 so as to face the skin that can directly contact the skin surface of the user. The surface side may be constituted by a liquid-permeable sheet in which excretion fluid such as urine discharged from a user is rapidly moved toward the absorber 21 disposed on the non-skin-facing side of the surface sheet 22.

In the present invention, a liquid-permeable sheet that can be used as a surface sheet is not particularly limited as long as it has various properties (such as liquid permeability and muscle feel, softness, strength, etc.) that can be used as a surface sheet of an absorbent article. For example, non-woven fabrics such as breathable non-woven fabrics, spunbond non-woven fabrics, and point-bonded non-woven fabrics, and fiber-based sheets such as woven fabrics can be optimally used; opening films having a plurality of openings applied to the resin film. The above-mentioned fibrous sheet may be subjected to a hydrophilization treatment with a surfactant. Among such liquid-permeable sheets, it is preferable to use a fiber-based sheet from the viewpoint of excellent liquid-permeability, flexibility, and strength, and it is more preferable to use a nonwoven fabric such as a breathable nonwoven fabric and a spunbond nonwoven fabric. In addition, when the above-mentioned fiber-based sheet is used as the surface sheet, the constituent fibers are not particularly limited. For example, olefin-based resins such as polyethylene and polypropylene can be used. Polyethylene terephthalate and polylactic acid can be used. A resin fiber composed of a thermoplastic resin such as a polyester resin and the like. These resins may be used alone or in combination of two or more kinds of resins. The structure of the resin fibers is not particularly limited, and for example, composite fibers such as core-sheath fibers, special-shaped cross-section fibers, and three-dimensional crimped fibers may be used. Furthermore, the above-mentioned resin fiber is subjected to, for example, a treatment using a surfactant and a hydrophilizing agent (for example, mixing of a surfactant toward the inside of the fiber, application of a surfactant toward the surface of the fiber, etc.) It may include any additives such as a deodorant and an antibacterial agent. These additives may be used alone or in combination of two or more types of additives.

In the present invention, the basis weight of the liquid-permeable sheet that can be used as the surface sheet is not particularly limited as long as it has predetermined liquid permeability, flexibility, and strength, for example, in the range of 5 g / m ² to 100 g / m ² It is preferably within a range of 10 g / m ² to 50 g / m ² . The thickness of the liquid-permeable sheet is not particularly limited as long as the liquid-permeable sheet functions as a surface sheet of an absorbent article, and any thickness may be adopted in accordance with the desired liquid-permeability, flexibility, strength, and the like. In addition, the structure of the liquid-permeable sheet that can be used as the surface sheet is not particularly limited as long as it has predetermined liquid permeability, flexibility, and strength, and can be optimally used, for example, in a person having a slightly flat structure and on the skin. The surface on the opposite side has an uneven structure or the like.

[Back Sheet] In the above-mentioned embodiment, the back sheet 23 disposed on the non-skin-facing side of the absorption body portion 2 is as shown in Figs. 1 to 6, and the absorption body portion 2 is viewed from a plan view. The belly region side end portion in the longitudinal direction L in the middle extends across the back region side end portion and extends from one side end portion in the width direction W of the absorption body portion 2 across the other side end portion. In addition, the back sheet 23 has a shape that is the same as the overall length of the overall absorption body portion 2 (that is, the portion corresponding to the interstrand region A _C in the length direction L is an approximation that is narrower toward the inner side of the width direction W. The shape of the sand-clock-shaped profile). In the absorbent article of the present invention, the size and shape of the back sheet are not particularly limited as long as they can cover at least the surface on the non-skin facing side of the absorbent body. Any size and shape can be adopted according to various applications and the like. By. Moreover, in the above-mentioned embodiment, as shown in FIG. 1 to FIG. 6, the back sheet 23 is arranged on the non-skin facing surface side of the thickness direction T of the absorption main body portion 2 and will be removed from the user. A functional liquid-impermeable sheet having a function of preventing leakage of excreted liquid such as urine and the like to the outside.

In the present invention, a liquid-impermeable sheet that can be used as a back sheet has various characteristics that can be used as a back sheet of an absorbent article (examples: liquid-impermeable and softness, strength, preferably air permeability, etc.) It is not particularly limited, and for example, resin films such as polyethylene and polypropylene; non-woven fabrics laminated with resin films; non-woven fabrics such as hydrophobic non-woven fabrics and laminated non-woven fabrics (examples: SMS non-woven fabrics) can be optimally used. In the case where the above-mentioned nonwoven fabric is used as the back sheet, the type of the nonwoven fabric is not particularly limited, and any nonwoven fabric such as a spunbonded nonwoven fabric, a point-bonded nonwoven fabric, a meltblown nonwoven fabric, and an SMS nonwoven fabric can be used. Furthermore, the constituent fibers of such a non-woven fabric are also not particularly limited. For example, polyolefin resins such as polyethylene and polypropylene; and thermoplastic resins such as polyester resins such as polyethylene terephthalate can be used. Resin fibers made of resin. These resins may be used alone or in combination of two or more kinds of resins. The structure of the resin fibers is not particularly limited, and various composite fibers such as core-sheath fibers may be used.

In the present invention, the basis weight of the liquid-impermeable sheet (such as a non-woven fabric) that can be used as the back sheet is not particularly limited as long as it has a predetermined liquid-impermeable (leak-proof) property and strength, for example, 5 g / m ^{It is} in the range of ² to 100 g / m ² , and preferably in the range of 10 g / m ² to 50 g / m ² . The thickness of the liquid-impermeable sheet is not particularly limited as long as the liquid-impermeable sheet can function as a back sheet of an absorbent article, and can correspond to the desired liquid-impermeable and softness, strength, and ventilation. Use arbitrary thickness.

Further, in the above-mentioned embodiment, as shown in FIGS. 2 to 6, the skin-facing side of the back sheet 23 (between the absorber 21 and the back sheet 23) is disposed to have substantially the same as the back sheet 23. The size and shape of the liquid-impermeable backing film 24. Such a backing film 24 is made of a thermoplastic resin film such as polyethylene, and similar to the back sheet 23, it prevents the passing of excretion liquid such as urine discharged from the user, so that the excretion liquid does not face the user. Dressed for waiting for the leaked functional person. In addition, if the absorbent article is provided with such a lining film, leakage of excretion fluid such as urine can be more effectively suppressed. Such a lining film is not an essential constituent element in the absorbent article of the present invention, so the present invention An absorbent article may be provided without such a lining film.

[Absorbent Body] In the above-mentioned embodiment, the absorbent body 21 is an abdominal area A _F (specifically, the lengthwise direction L) in the longitudinal direction L of the absorbent body portion 2 as seen from a plan view as shown in FIG. 1. Near the end of the abdomen area side) extends across the back area A _B (specifically, near the end of the back area side in the length direction L). Further, the absorbent body 21 spans the widthwise second area A _W2 from the widthwise first area A _W1 (specifically, near the one side end portion in the width direction W) of the width direction W of the absorption body portion 2 ( Specifically, it is extended in the width direction W near the other end portion). On the whole, the absorber 21 has a shape that is long in the longitudinal direction L, and the portion of the interstrand region A _C corresponding to the longitudinal direction L is narrowly contracted toward the inner side of the width direction W and has an approximately sand-clock-shaped outer shape. . Further, in the absorbent article of the present invention, the size and shape of the absorbent body are not limited to those in this embodiment, and at least the length dimension in the longitudinal direction spans the back region from the abdominal region in the longitudinal direction of the absorbent body portion. If the shape is long, it can be used in any length (for example, rectangular, oval, gourd, etc.) for various applications. In the above embodiment, the absorber 21 is arranged between the top sheet 22 and the back sheet 23 in the thickness direction T of the absorber main body 2 as shown in FIGS. 1 to 6 (specifically, Between the surface sheet 22 and the lining film 24), a two-layer absorbent layer (i.e., the first absorbent layer 21A and the second absorbent layer) that functions to absorb and retain the excretion fluid of the user such as urine passing through the surface sheet 22 21B).

These two absorbent layers are a first absorbent layer 21A disposed relatively on the skin-opposite surface side and a second absorbent layer 21B disposed relatively on the skin-opposite surface side within the absorbent body portion 2, The above-mentioned absorbent body 21 is formed as an integrated body by being joined by an arbitrary joining means (not shown) such as a thermal fusion adhesive. Among the two absorbent layers constituting the absorbent body 21, the first absorbent layer 21A is an abdomen area A _F in the longitudinal direction L of the absorbent main body portion 2 (specifically, the abdomen side in the longitudinal direction L) when viewed from above. Near the end) extends across the back region A _B (specifically, near the back-side end in the longitudinal direction L). Further, the first absorbing layer 21A spans the widthwise second area A from the widthwise first area A _W1 (specifically, near the end on one side of the width direction W) of the width direction W of the absorption body portion 2. _W2 (specifically, near the other end portion in the width direction W) extends. As a whole, the first absorbing layer 21A has an approximately sand-clock-shaped outer shape having a portion that is long in the length direction L and corresponds to the interstrand region A _C in the length direction L and is narrower toward the inner side of the width direction W. Shaped absorbent member. In this embodiment, the first absorbing layer 21A has a shape that forms the outer shape of the absorbing body 21 when viewed from above.

On the other hand, the second absorbent layer 21B crosses the back region A from the abdominal region A _F in the longitudinal direction L of the absorber main body portion 2 (specifically, near the end on the abdominal side in the longitudinal direction L) in a plan view. _B (specifically, near the back-side end in the longitudinal direction L). However, in the width direction W, both end edges of the width direction W are located at both end edges (the one side end edge 21E ₃ and the other side in the width direction W) of the first absorption layer 21A in the width direction W. The end edge 21E ₄ ) extends further inward in the width direction W. As a whole, the second absorbing layer 21B is composed of an absorptive member having a long approximately rectangular outer shape in the longitudinal direction L. By forming the second absorbent layer 21B disposed on the opposite non-skin facing surface side in this way, it is difficult for the user to perceive a step difference in the edge portion of the width direction W of the first absorbent layer 21A and the second absorbent layer 21B. .

In the present invention, the absorptive member that can be used as the first and second absorbent layers constituting the above-mentioned absorbent body is not particularly limited as long as it can absorb and retain excretory fluid such as urine, and it can be used in the art Arbitrary absorbent member. As such an absorbent member, for example, an absorbent core composed of an arbitrary absorbent material, a core wrap sheet such as a tissue paper having hydrophilicity, or the like can be used. Furthermore, for the absorbent material constituting the above-mentioned absorbent core, for example, hydrophilic fibers, superabsorbent copolymers, and the like can be used. More specifically, cellulose fibers such as pulverized pulp, cotton, rayon, and acetate can be used. ; Granules and the like composed of a superabsorbent copolymer such as a sodium acrylate copolymer. These absorbent materials may be used alone or in combination of two or more types of absorbent materials. The first absorption layer and the second absorption layer may use an absorbent member having the same configuration, or may use absorbent members having different configurations.

Moreover, in the above-mentioned embodiment, as shown in FIGS. 1 to 3, the first absorbing layer 21A includes, in a plan view, at least a central portion (that is, a portion facing the width direction W) of the interstrand region A _C in the width direction W. A portion where the central axis C _L in the width direction extending in the longitudinal direction _L overlaps), the through hole 21A _S penetrating the first absorption layer 21A in the thickness direction T. Further, as shown in FIGS. 1 to 2, the second absorption layer 21B also overlaps the through-hole 21A _{S of the} first absorption layer 21A in the thickness direction T at the center portion in the width direction W of the interstrand region A _C. It has a smaller size and shape than the through holes 21A _S when viewed from above, and includes a through hole 21B _S that penetrates the second absorption layer 21B in the thickness direction T. These through-holes 21A _S and 21B _S communicate with each other in the thickness direction T, and penetrate the absorber 21 in the thickness direction T as a whole, and the through-holes formed in the thickness direction T have stepwise different through-hole areas. If the absorber is provided with such a through hole, absorption of the excretory fluid in the thickness direction T can be promoted, so that it can exhibit more excellent absorption performance (especially, absorption speed).

In the urine absorbing pad 1 of this embodiment, the absorbent body 21 does not need to be composed of the two-layered absorbent layer as in the above embodiment, and the absorbent body 21 is composed of an absorbent member having a single-layer structure. Alternatively, it may be composed of an absorbent member having a multilayer structure of three or more layers. The basis weight, thickness, etc. of the absorbent member that can be used as the absorbent layer constituting the absorbent body 21, as long as the absorbent member has various functions (e.g., absorbency, flexibility) that can function as the absorbent body 21 of the urine absorbing pad 1. Etc.) are not particularly limited, and arbitrary basis weights and thicknesses can be used.

Furthermore, in the above-mentioned embodiment, the absorbent body 21 is in the abdominal area A _F and the back area A _B , and has both end edges in the width direction W of the absorbent body 21 (that is, one side end edge 21E _{3 in the} width direction W). And the other side end edge 21E ₄ ) is partially disposed on the outer side in the width direction W than the outer side end edge in the width direction W of the second joint portion 45 of the pair of leak-proof wall portions. . When the absorbent body 21 is so disposed, when the user sleeps in the lateral direction (that is, the excretion liquid discharged from the user is easily directed to the direction of gravity (specifically, the outer side of the width direction W of the absorbent body portion 2) In the case of flow), the excretion fluid flowing toward the outer side in the width direction W can be absorbed by the absorbent body 21, and the side leakage of the excretion fluid can be prevented more reliably.

[Embossing Section] In the above-mentioned embodiment, the absorber 21 has the width direction first area A _W1 and the width direction that are respectively arranged in the width direction central axis C _L extending in the length direction L. The second area A _W2 is a pair of embossed portions 3 and 3 that are recessed from the opposite side of the skin in the thickness direction T. Such a pair of embossed portions 3 and 3 each have a linear shape in plan view extending in the longitudinal direction L in the interstrand region A _C as shown in FIG. 1. The thickness direction T is recessed from the opposite side of the skin, and the two absorption layers (the first absorption layer 21A and the second absorption layer 21B) of the absorber 21 are integrated by pressing. The embossed portion 3 can be formed by pressing the first absorbing layer 21A and the second absorbing layer 21B from the opposite side of the skin in the thickness direction T by using any embossing processing means with or without heating.

Further, in this embodiment, the pair of embossed portions 3 and 3 has a width direction length from the embossed portion 3 to an inner side end edge in the width direction W of the base portion 41, and a width of the first wall portion 42. The total length of the directional length and the widthwise length of the second wall portion 43 is longer than the widthwise central axis C _L to the embossed portion 3 (specifically, the widthwise center line of the embossed portion 3). The length in the width direction is longer. When the pair of embossed portions 3 and 3 are arranged in this way, the pair of embossed portions 3 and 3 serve as starting points for bending, and the widthwise central portion extending along the widthwise central axis C _L of the absorbent body 21 faces skin-facing surface side of the projection (i.e., along the longitudinal direction of the cross-sectional shape of the central axis C becomes approximately _W is W-shape) so that the absorbent body 21 is easily deformed, and said leakage preventing wall portions 40, 40 of a pair of standing height, is Since the protruding height is higher than the widthwise central portion protruding toward the skin facing surface side, the skin facing surface in the widthwise central portion of the absorbent body 21 can be brought into close contact with or close to the intertrochanter portion of the user. The excretion fluid discharged by the user is easily absorbed by the absorbent body 21, and side leakage of the excretion fluid can be prevented more reliably. In addition, if such a pair of embossed portions 3 and 3 can be used as the starting point of bending of the absorbent body 21, the effects other than the above embodiment can be achieved in the same manner. Therefore, in the present invention, the pair of embossed portions 3 and 3 is not limited to the case where the two absorption layers (the first absorption layer 21A and the second absorption layer 21B) are integrated as in the embodiment described above. For example, the surface sheet 22 and the two-layer absorption layer may be integrally formed.

Moreover, in the present invention, the shape of the embossed portion 3 in a plan view is not particularly limited. In addition to the linear shape of the embodiment described above, any shape such as a wavy shape, a wavy shape, a curved shape, or a zigzag shape may be used. . In this embodiment, the embossing portion 3 is not required.

<Leak-proof wall portion> In the urine absorbing pad 1 of the above-mentioned embodiment, a pair of leak-proof wall portions 40 and 40 are located across both ends of the absorbent body portion 2 in the width direction W, respectively. A pair of side sheets 4 and 4 are formed in which both ends of the longitudinal direction L extend continuously. Further, in such a pair of side sheets 4, 4 are arranged in the vicinity of the inner side end edge portion in the width direction W, and five of the pair of side sheets 4, 4 can be contracted in the longitudinal direction L, respectively. Elastic member EL.

Hereinafter, various constituent members which can form a pair of leak-proof wall portions 40 and 40 in the urine absorbing pad 1 of the present invention will be described in further detail.

[Side Sheet] In the above-mentioned embodiment, the pair of side sheets 4, 4 are on the skin-opposing surface side of the absorption body portion 2 (more specifically, the skin-opposing surface side of the surface sheet 22), and are disposed on Both ends of the absorbent body portion 2 in the width direction W. When the urine absorbing pad 1 is worn, the inner side edge in the width direction W can be used as a leak-proof wall. A long pair of band-shaped liquid-impermeable sheets is formed.

In the present invention, the belt-like liquid-impermeable sheet that can be used as a side sheet has various characteristics that can be used as a side sheet of an absorbent article (for example, liquid-impermeable property and muscle feel, softness, strength ( In particular, the strength when wet), etc.) are not particularly limited, and for example, a hydrophobic non-woven fabric (such as having or being rendered hydrophobic, a spunbond non-woven fabric, a point-bonded non-woven fabric, an SMS non-woven fabric, etc.) can be used; Translucent synthetic resin film; laminates of these, etc.

The shape, basis weight, and thickness of the strip-shaped liquid-impermeable sheet that can be used as a side sheet are not particularly limited as long as they do not hinder the effects of the present invention, and can correspond to the desired liquid-impermeable and muscular feel. , Softness, etc. adopt any shape, basis weight, thickness, etc.

In the present invention, a bonding means for forming the above-mentioned first and second bonding portions can be used. There is no particular limitation as long as the effects of the present invention are not hindered. For example, a heat-fusion type adhesive can be used. Arbitrary joining means such as adhesive means such as welding, welding means such as ultrasonic welding.

Further, in the above-mentioned embodiment, the inner side end edge in the longitudinal direction L of the first joint portion 44 extends linearly along the width direction W. As described above, when the inner side end edge in the longitudinal direction L of the first joint portion 44 extends linearly along the width direction W, the inner side end edge in the longitudinal direction L of the first joint portion 44 is used as a starting point. The rising structure of the raised first wall portion 42 and the second wall portion 43 is easy to stabilize, and the functions of the above-mentioned second wall portion 43 can be more effectively exhibited.

[Elastic member] In the above-mentioned embodiment, the pair of side sheets 4 and 4 are, as shown in FIG. 1, the pair of side sheets 4 near the inner side edge of the width direction W, respectively. The four elastic members EL that are contracted in the longitudinal direction L and promote the erection of the inner side end edge in the width direction W are arranged along the longitudinal direction L.

In the present invention, the plurality of elastic members EL arranged on the pair of side sheets 4 and 4 are absorbent body portions 2 that can be oriented toward the unfolded state (specifically, the pair of side sheets 4 and 4 are directed toward The material that absorbs the main body 2) The contraction force in the longitudinal direction L is not particularly limited. For example, rubber threads and flat rubber made of natural rubber; urethane, ethylene-vinyl acetate copolymer (EVA), and the like can be used. The thermoplastic elastomer is an arbitrary elastic member such as a linear or band-shaped former.

The size and shape of the elastic member EL that can be used in the urine absorbing pad 1 of the present invention are not particularly limited as long as the absorbent body portion 2 in a state where the permeation-side sheet 4 is unfolded can be contracted in the longitudinal direction L. The use, size, and the like of the sheet 1 are of an arbitrary size and shape. Such a size and shape is, for example, a length in the longitudinal direction of the elastic member EL, which is 1/4 or more, preferably 1/3 or more of the total length of the urine absorbing pad 1. The fineness is preferably in the range of 200 dtex to 800 dtex. It is in the range of 300dtex to 700dtex. In addition, the number of elastic members EL is not particularly limited as long as the absorption body portion in a state where the permeate-side sheet is unfolded can be contracted in the longitudinal direction. The elastic members can be arranged in a pair of leak-proof wall portions, one and two. Any number, such as three or more.

In the urine absorbing pad 1 of the present embodiment, the absorbent body 21 in a preferred aspect is, in a plan view, in the inter-strand region A _C , and has both ends in the width direction W of the absorbent body 21 (that is, the width direction). The one end edge 21E ₃ and the other end edge 21E ₄ ) of W are narrow portions 25 that contract toward the inner side of the width direction W. The position of the longitudinal direction L of the abdominal region A _F side of the narrowed portion 25 is a region overlapping the range of the longitudinal direction L of the joint extension portion 45 _O. The case according to the present embodiment, since the narrow space between portion 25 and crotch portion Field A _C is almost the same, the end portion A _F side of the abdomen field 25 of the narrow portion is an end portion A _F side of the abdomen art crotch A _C unit area.

With the above configuration, in the urine absorbing pad 1, the end portion of the narrow portion 25 that is easily deformed in the thickness direction T is provided at a position corresponding to the joint extension portion 45 _O. Here, the rigidity of the portion of the second wall portion 43 to which the extension portion 45 _{O is} joined is relatively high. Therefore, even if deformation has occurred at the end of the narrow portion 25, deformation of the second wall portion 43 can be suppressed, and a gap can be prevented from occurring between the surface on the skin-opposing surface side of the second wall portion 43 and the skin surface. Thereby, the surface of the skin facing surface of the second wall portion 43 can be gently deformed along the curved surface of the skin surface. Further, if the absorbent body 21 has the shape of the narrow portion 25, the influence of the rigidity generated by the absorbent body 21 in the interstrand region A _C is small. The deformation and movement of the pair of leak-proof wall portions 40 and 40 described above are small. The degree of freedom becomes higher. Therefore, when the user wears the urine absorbing pad 1, the pair of leak-proof wall portions 40 and 40 described above can be closely adhered while following the shape of the user's body (the shape of the intertrochanter part). Therefore, the urine absorbing pad 1 provided with the absorber 21 having such an external shape is difficult to form a gap between the user's body (inter-strand portion) and a pair of leak-proof wall portions 40 and 40, so It is possible to more reliably prevent side leakage of the excretion fluid.

In the urine absorbing pad 1 of this embodiment, in a preferable aspect, the end portion of the abdominal region A _F side of the elastic members EL1 and EL2 of the second wall portion 43 among the plurality of elastic members EL has a length direction L is located at a position range 45 _O engaging the longitudinal direction L of the extended portion of the areas of overlap. With the above configuration, in the present urine absorbing pad 1, compared with a case where the ends of the elastic members EL1 and EL2 are located on the outer side than the joint extension portion 45 _O in the longitudinal direction L, the main body portion is absorbed. 2 or when the absorber 21 is bent in the thickness direction T from the upper side to the lower side, the bending condition can be relatively relaxed. Thereby, in the portion where the thickness direction of the absorption body portion 2 is bendable, the deformation of the second wall portion 43 can be further suppressed, and the skin-opposing surface and the skin surface of the second wall portion 43 of the leak-proof wall portion 40 can be more suppressed. A gap occurs, and the surface of the skin facing side of the second wall portion 43 can be gently deformed along the curved surface of the skin surface.

In the urine absorbing pad 1 of the present embodiment, the absorbent body 21 having a preferable aspect has an opening portion (through through extending from the surface of the absorbent body 21 inward in the thickness direction T and extending in the longitudinal direction L) At least one of the hole 21A _S and the through hole 21B _S ). And, those having at least part of the opening, the longitudinal direction L in a position which is located in the field and scope of engaging the longitudinal direction of the extended portion 45 _O L overlap.

With the above-mentioned configuration, in the urine absorbing pad 1, at least a part of the portion including the opening (at least one of the through-hole 21A _S and the through-hole 21B _S ) in the absorbent body 21 is low in rigidity and easily deformed. It is provided at a position corresponding to the joint extension portion 45 _O. Here, the rigidity of the portion of the second wall portion 43 to which the extension portion 45 _{O is} joined is relatively high. Therefore, even if the partial deformation including the opening portion in the absorber 21 has occurred, the deformation of the second wall portion 43 can be suppressed, and a gap can be prevented from occurring between the surface on the skin-opposing surface side of the second wall portion 43 and the skin surface. Therefore, the surface of the skin facing side of the second wall portion 43 can be gently deformed along the curved surface of the skin surface.

In the urine absorbing pad 1 of this embodiment, in a preferred aspect, the end portion of the abdomen area A _F side in the length direction L in the embossing portion 3 is located at the position of the length extension L in the engagement extension portion 45 A range where the range of the length direction L of _O overlaps. With the above-mentioned configuration, in the present urine absorbing pad 1, compared with the embossed portion 3, the rigidity is relatively low, and it is easy to deform. The end portion of the embossed portion 3 in the longitudinal direction L is provided on the outer side. At the position corresponding to the joint extension 45 _O. Here, the rigidity of the portion where the joint extension portion 45 _{O of} the second wall portion 32 is joined is relatively high. Therefore, even if deformation has occurred at the portion on the outer side of the end in the longitudinal direction L of the embossed portion 3, the deformation of the second wall portion 43 can be suppressed, and the surface on the skin-opposing surface side of the second wall portion 43 can be suppressed. And skin gaps. Thereby, the surface of the skin facing surface of the second wall portion 43 can be gently deformed along the curved surface of the skin surface.

In the urine absorbing pad 1 of the present embodiment, in a preferable aspect of the telescopic area S _E , the portion on the inner side of the width direction W is shorter than the portion on the outer side of the width direction W. For example, the elastic member EL in the telescopic area _SE can be formed shorter (smaller) than the elastic member EL2 on the inner side in the width direction W than the elastic member EL2 on the outer side in the width direction W. With the above-mentioned configuration, in the urine absorbing pad 1, the portion on the inner side in the width direction W of the second wall portion 43 can be easily erected to the portion on the outer side in the width direction. Therefore, the second wall portion 43 can be easily erected, and the erected structure can be easily maintained.

In the urine absorbing pad 1 of this embodiment, in a preferred aspect, the pair of leak-proof wall portions 40 and 40 each have a fixed end portion which is joined to the absorption body portion 2 along the longitudinal direction L, and is located at a width In the direction W, the free end portion is opposite to the fixed end portion and is not engaged with the absorption body portion 2. The plurality of elastic members EL has a length in the longitudinal direction of the elastic member EL3 located on the fixed end side, which is longer than a length of the elastic member EL1 located on the free end side. With the above-mentioned configuration, in the urine absorbing pad 1 in the portion on the outer side in the width direction W of the leak-proof wall portion 40, it is easy to maintain the first wall portion 42 and the second wall portion 43. The upright structure can further ensure the durability against the excretory fluid facing the outer side in the width direction W. In addition, in the inner side portion in the width direction W of the leakage preventing wall portion 40, the degree of freedom of deformation and movement is high, and the leakage preventing wall portion 40 can easily follow the shape of the user's body (the shape of the intertrochanter portion). ) One side is tight. Accordingly, the present urine absorbing pad 1 can satisfactorily exert the leakage preventing function of the leakage preventing wall portion 40.

In the urine absorbing pad 1 of this embodiment, in a preferred aspect, the length in the longitudinal direction of the telescopic area _SE is longer than the length in the longitudinal direction of the second joint portion 45 in the abdominal area A _F and the back area A The total length of the length in the longitudinal direction of the fourth joint portion 45 in _B is smaller. By having the above-mentioned structure, the present urine absorbing pad 1 can be prevented from shrinking excessively when worn. Furthermore, when the user sleeps in the horizontal direction, since the area other than the telescopic area S _E of the second wall portion 43 supports the telescopic area S _{E of} the second wall portion 43, the standing shape of the telescopic area S _E can be maintained. It is difficult for the excretory fluid to surpass the second wall portion 43.

In the urine absorbing pad 1 of this embodiment, in a preferred aspect, the urine absorbing pad 1 is folded from a plurality of fold positions in the length direction L along a fold line extending in the width direction W when it is packed. In addition, among the plural folding positions, the folding position on the side of the most abdominal area A _F is located on the inner side than the inner edge of the longitudinal direction L of the joining extension portion 45 _O of the second joining portion 45. That is, the folded position does not overlap the first joint portion 44 and the second joint portion 45. With the above-mentioned configuration, when the folded urine absorbing pad 1 is released, the first wall portion 42 and the second wall portion 43 do not form a fold line that is easily generated by side leakage, and can effectively display the second joint portion. 45 (joint extension 45 _O ) side leakage prevention function.

Furthermore, in the urine absorbing pad 1 of the above-mentioned embodiment, five (plural) elastic members EL respectively disposed on a pair of leak-proof wall portions (side sheets) are as shown in FIG. 1. The length in the longitudinal direction of the elastic member EL located on the outer side in the width direction W is formed longer than the length in the longitudinal direction of the elastic member EL located on the inner side in the entire width direction W. As described above, if the length in the longitudinal direction of the elastic member EL positioned on the outer side of the width direction W is longer than the length of the longitudinal direction of the elastic member EL positioned on the inner side of the width direction W, it is possible to prevent leakage in a pair. In the outer side portion of the wall portions 40 and 40 in the width direction W, it is easy to maintain the standing structure generated by the first wall portion 42 and the second wall portion 43, and it is possible to further ensure that the outer side facing the width direction W The durability of the excretory fluid. In particular, the elastic member EL3 of the first wall portion 42 makes it easier to maintain the first wall portion 42 and the second wall portion in the outer side portion of the pair of leak-proof wall portions 40 and 40 in the width direction W. The rising structure by the wall portion 43 can further suppress the phenomenon of falling down toward the outside in the width direction W.

Further, in the above embodiment, the absorbent body 21, as is shown in FIG. 1, comprising: A _F in the abdomen in the art absorber 21 in the width direction W of the length of the longest part of the wide width portion is 21M, and The length in the width direction W of the absorber 21 at the boundary between the abdominal area A _F and the interfemoral area A _C is longer than the width direction W of the wide portion 21M (that is, the width direction of the absorber 21 in the abdominal area A _F The maximum length of W) is smaller than the narrow width portion 21N, and this narrow width portion 21N overlaps the above-mentioned narrowed area in a plan view. As described above, the length of the width direction W of the absorbent body 21 in the boundary portion between the abdominal area A _F and the interfemoral area area A _C is smaller than the maximum length of the width direction W of the absorber 21 in the abdominal area A _F. In the case of the narrow portion 21N, the rigidity of the urine absorbing pad 1 having a portion having the width of the narrow portion 21N is relatively reduced. Therefore, when the urine absorbing pad 1 is worn, the urine absorbing pad 1 has the width described above. The portion of the narrow portion 21N serves as a starting point to dent the surface on the opposite side of the skin and easily bend it. In addition, such a urine absorbing pad 1 is viewed from above. Since the narrow width portion 21N overlaps the contraction area described above, when the urine absorbing pad 1 is worn, the abdominal area A _{F with} large curvature and the interfemoral portion are worn. The boundary portion of the area A _C (that is, the portion where the narrow width portion 21N overlaps with the thickness direction T) and the skin-opposing surface side of the second wall portion 43 of the leak-proof wall portion are as shown in FIG. 7 and can be maintained In a state of a planar shape that is substantially parallel to the surface on the skin-opposing surface side of the absorption main body portion 2, the leak-preventing wall portion described above easily rises toward the skin-opposing surface side. As a result, the urine-absorbent pad 1 can more surely ensure the leak-proof wall portion of the portion with a large curvature (that is, the boundary portion between the abdominal area A _F and the intergranular area A _C ) when worn, and the skin of the user. The surface contact area (in other words, it is difficult to form a gap between the leak-proof wall portion and the skin surface of the user), it is possible to further reliably prevent side leakage of the excretion liquid.

The urine absorbing pad 1 of the present invention is not limited to the above-mentioned embodiments, and can be appropriately combined, substituted, changed, and the like within a range that does not deviate from the purpose and spirit of the present invention. In the present specification, the serial numbers such as "first" and "second" are only used to distinguish the users who are assigned serial numbers, and they do not mean the order, priority, and importance of each item.

1‧‧‧ urine suction pad

2‧‧‧ Absorbing body part

3‧‧‧Embossing Department

4‧‧‧ side sheet

21‧‧‧ Absorber

21A‧‧‧The first absorption layer

21A _S ‧‧‧through hole

21B‧‧‧Second absorption layer

21B _S ‧‧‧through hole

21E ₁ ‧‧‧ side edge of back area

21E ₂ ‧‧‧Side edge of abdominal area

21E ₃ ‧‧‧One side edge

21E ₄ ‧‧‧ the other side edge

21M‧‧‧Wide width

21N‧‧‧Narrow width

22‧‧‧ surface sheet

23‧‧‧ back sheet

24‧‧‧lining film

25‧‧‧Narrow section

32‧‧‧ the second wall

40‧‧‧Leak-proof wall

41‧‧‧ base

42‧‧‧ the first wall

43‧‧‧ the second wall

44‧‧‧ the first joint

45‧‧‧ 2nd joint

45E _i ‧‧‧Inner side end edge

45E _o ‧‧‧Inner side edge

45 _i ‧‧‧Joint body

45 _O ‧‧‧Joint Extension

S _E ‧‧‧ Telescopic Field

S _U ‧‧‧ Non-Telescopic Field

EL‧‧‧ Elastic member

EL1‧‧‧ Elastic member

EL2‧‧‧Elastic member

EL3‧‧‧ Elastic member

L‧‧‧ length direction

P‧‧‧Excretion

A _B ‧‧‧Back Area

A _C ‧ ‧ ‧ Intersectoral sector

A _F ‧‧‧ Abdominal area

A _W1 ‧‧‧Width 1st Field

A _W2 ‧‧‧Width 2nd Area

B _A ‧‧‧ Junction Area

C _L ‧‧‧Width central axis

C _W ‧‧‧ length central axis

T‧‧‧thickness direction

W‧‧‧Width direction

[FIG. 1] A plan view of a urine absorbing pad 1 according to an embodiment of the present invention in a developed state.第 [FIG. 2] An end view of the urine suction pad 1 in a natural state in a cross section taken along a line II-II in FIG. 1.第 [FIG. 3] End view of the urine suction pad 1 in the natural state in the cross section taken along the line III-III in FIG.第 [FIG. 4] End view of the urine suction pad 1 in a natural state in a cross section taken along line IV-IV in FIG. 1.第 [FIG. 5] End view of the urine suction pad 1 in the natural state in the cross section taken along the line V-V in FIG.第 [FIG. 6] End view of the urine suction pad 1 in the natural state in the cross section taken along the line VI-VI in FIG.第 [FIG. 7] A perspective view of the urine suction pad 1.

Claims (10)

A urine-absorptive pad comprising: an absorptive body portion having a length direction, a width direction, and a thickness direction, the abdomen area, the intertrochanter area, and the back area in the length direction, and an absorbent body; and The two end portions in the width direction are a pair of leak-proof wall portions extending continuously across the two end portions in the length direction; The pair of leak-proof wall portions each include: 面对 facing the absorption body portion, At least the outer end edge in the width direction is fixed to the base portion of the absorbent body portion; and the first end portion connected to the inner side end edge in the width direction in the base portion is raised to the opposite side of the skin when worn. A first wall portion; and a second wall portion connected to the outer side end edge in the width direction of the first wall portion and standing toward the opposite side of the skin when worn; and at least in the abdominal area, The base portion and the first wall portion are joined and have a predetermined widthwise length, and extend inward from the end edge of the leak-proof wall portion in the lengthwise direction. The first joint portion and the second joint portion join the first wall portion and the second wall portion at least in the abdominal region, and have a predetermined length in the width direction, and extend from the leak-proof wall in the length direction. The end edge of the portion extends toward the inner side, and includes a joint body portion located on the end edge side of the leak-proof wall portion in the longitudinal direction, and a portion from the outer side in the width direction of the joint body portion toward the aforementioned portion. A joint extension portion extended on the inner side in the longitudinal direction; and a plan view in the longitudinal direction from an end edge of the inner side of the joint main body portion in the abdominal region or a position on the inner side thereof toward A plurality of elastic members extending in the back region and arranged side by side in the width direction; the second wall portion includes: among the plurality of elastic members, the elastic members located in the second wall portion are directed in the longitudinal direction; The extended telescopic area and the non-telescopic areas located on both outer sides in the longitudinal direction of the telescopic area, the joint extension section is a part of the telescopic area. The outer side in the width direction and the inner side toward the length direction are extended by a length in a predetermined length direction. For example, the urine absorbing pad according to the first patent application range, wherein: the absorbent body is viewed from above. In the area of the interfemoral part, both end edges in the width direction of the absorbent body face the width direction. The narrow portion contracted on the inner side, the end portion of the narrow region on the abdominal region side, the position in the longitudinal direction is a region overlapping the range in the longitudinal direction of the joint extension portion. For example, the urine absorbing pad according to item 1 or 2 of the patent application scope, wherein: 的 an end of the plurality of elastic members located on the abdominal region side among the elastic members of the second wall portion, and the position in the longitudinal direction thereof; It is an area | region which overlaps with the range of the said longitudinal direction of the said joint extension part. For example, the urine absorbing pad according to the first patent application range, wherein: the absorbent body has an opening portion extending from the surface of the absorbent body inward in the thickness direction and extending in the length direction, and the opening portion At least a part of the position in the longitudinal direction is located in a region overlapping the range in the longitudinal direction of the joint extension portion. For example, the urine absorbing pad according to item 1 of the patent application range, wherein the aforesaid absorbent body includes a first area in the width direction and a second area in the width direction that are respectively arranged by a widthwise central axis extending in the lengthwise direction. A pair of embossed portions that are recessed from the opposite side of the skin in the thickness direction, the end of the embossed portion in the lengthwise direction on the abdomen area side, the position in the lengthwise direction is located to extend from the joint The area where the range of the longitudinal direction of the part overlaps. For example, in the urine absorbing pad of the first scope of the patent application, in the aforementioned telescopic field, the portion on the inner side of the width direction is shorter than the portion on the outer side of the width direction. For example, the urine absorbing pad of the first patent application range, wherein the pair of leak-proof wall portions each has a fixed end portion that is joined to the absorption body portion along the length direction, and is located in the width direction. On the opposite side of the fixed end portion, the free end portion that is not joined to the absorption body portion, the length of the elastic member on the fixed end side of the plurality of elastic members is longer than the length of the elastic member on the fixed end side. The length of the elastic member in the longitudinal direction is longer. For example, the urine absorbing pad of the first patent application scope, wherein: the pair of leak-proof wall portions further includes: in the back area, the base portion and the first wall portion are joined to each other and have a predetermined width direction A length of the third joint portion extending inward from the end edge of the leak-proof wall portion inward in the longitudinal direction and facing the first joint portion in the longitudinal direction; and a fourth joint portion on the back In the field, the first wall portion and the second wall portion are joined to have a predetermined length in the width direction, and extend inward from the end edge of the leak-proof wall portion in the longitudinal direction to the second joint portion. The longitudinal direction facing each other includes a back joint main body portion located on an end edge side of the leak-proof wall portion in the longitudinal direction, and a portion from the outer side of the width direction of the back joint main body portion toward the length. The back joint extension portion extended on the inner side in the direction; The plurality of elastic members are connected from the back portion in the back region in the length direction from a plan view. The end edge or the position of the inner side of the main body portion extends toward the abdomen area. The back joint extension portion is on the outer side of the width direction of the telescopic area and faces inward of the length direction. The square side is extended by a length in a predetermined length direction. For example, the urine-absorbing pad of the eighth aspect of the patent application, wherein the length in the longitudinal direction of the telescopic area is a ratio of the length in the longitudinal direction of the second joint portion in the abdominal area and the length in the back area. The total length of the fourth joint portion in the longitudinal direction is smaller. For example, in the urine absorption pad of the first patent application range, When the urine absorption pad is packed, it is folded from a plurality of fold positions in the length direction and along a fold line extending in the width direction, and the plurality of fold positions Among them, the most folded position on the abdominal region side is located on the inner side than the end edge in the longitudinal direction of the joint extension portion of the second joint portion.