JP7224270B2 - urine pad - Google Patents

Description

TECHNICAL FIELD The present invention relates to an incontinence pad that is attached to the inner surface of an exterior body such as a diaper or paper pants.

2. Description of the Related Art Incontinence pads are known as absorbent articles that are attached to the inner surface of outer packaging such as diapers and paper pants. The incontinence pad is usually used by attaching it to the inner surface of an exterior body such as a diaper or paper pants, pulling up the exterior body, and bringing the surface of the incontinence pad into close contact with the wearer's crotch. Therefore, in order to prevent the wearer from feeling discomfort or discomfort, there are various technologies for improving the fit to the wearer's crotch region and for preventing leakage of urine discharged from the wearer to the outside. being considered.

In recent years, in addition to these technologies, various types of urine absorption pads have been proposed in consideration of the convenience of the wearer. a first imaginary straight line in the width direction extending in the width direction and positioned between a longitudinal central axis extending in the width direction and one side edge portion in the longitudinal direction in a plan view of an unfolded state; a longitudinal central region extending between a direction center axis and a widthwise second imaginary straight line extending in the widthwise direction and positioned between the direction center axis and the other side edge in the longitudinal direction; a longitudinal first region extending between the widthwise first imaginary straight lines; and a longitudinal second region extending between the other side edge portion and the widthwise second imaginary straight line; Further, after the absorbent article is folded toward the top sheet side along the first imaginary straight line in the width direction, the first longitudinal region and the second longitudinal region are at least partially aligned in the thickness direction. By folding along the widthwise second imaginary straight line so as to overlap and face each other, a foldable state is formed, and the longitudinal direction second region and the longitudinal direction second region are formed in the longitudinal direction first region. The absorbent article is disclosed in which an engaging member is provided on the non-skin-facing surface at a position overlapping in the thickness direction. and a urine absorption pad that is longitudinally folded in three by widthwise second imaginary straight lines (two folding lines extending in the widthwise direction).

Japanese Patent No. 6541633

The three-fold urine absorbing pad of Patent Document 1 has two folding lines extending in the width direction, so that the urine absorbing pad is easily deformed into a shape curved in the longitudinal direction (that is, a substantially U shape). , easily conforms to the shape of the inner surface of the exterior body.
However, in the urine absorbing pad of Patent Literature 1, a gap is likely to occur between the urine absorbing pad and the inner surface of the outer packaging due to the crease of the folding line, and after being attached to the inner surface of the outer packaging such as a diaper or paper pants, When pulling up the body and bringing the surface of the urine absorbing pad into close contact with the crotch of the wearer (hereinafter simply referred to as "when pulling up when wearing"), the above-mentioned fold line serves as a base point for the urine absorbing pad. was bent and turned up from the ends in the longitudinal direction. If the urine absorbing pad is turned over in this way, there is a risk that the wearer will feel a foreign body, or that urine excreted from the wearer will leak out.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a urine absorbing pad that is easily adapted to the shape of the inner surface of an exterior body and that is less likely to be turned up when pulled up when worn.

One aspect (aspect 1) of the present invention comprises a topsheet forming a skin-facing surface, a backsheet forming a non-skin-facing surface, an absorbent body disposed between these sheets, and a non-absorbent absorbent of the backsheet. A urine absorbing pad having a longitudinal direction, a width direction, and a thickness direction, and having an adhesive portion arranged on the surface facing the skin,
The urine absorbing pad has at least two folding lines extending in the width direction in a plan view in an unfolded state,
The at least two fold lines are
a first fold line located closest to one longitudinal edge of the urine absorbing pad;
a second fold line located closest to the other longitudinal edge of the urine absorbing pad;
The urine absorbing pad is characterized in that the adhesive portion is arranged so as to straddle at least each of the first folding line and the second folding line in the longitudinal direction.

Since the urine absorbing pad of aspect 1 has at least two folding lines extending in the width direction, the urine absorbing pad is deformed into a shape curved in the longitudinal direction (that is, substantially U-shaped). It is easy to fit and easily conforms to the shape of the inner surface of the exterior body.
Furthermore, there are two fold lines near the ends in the longitudinal direction, namely, the first fold line closest to one longitudinal edge and the second fold line closest to the other longitudinal edge. By arranging the adhesive part so as to straddle each of the two folding lines in the longitudinal direction, the part having these folding lines can be steadily adhesively fixed to the inner surface of the exterior. In addition, when the pad is lifted up at the time of wearing, it is possible to prevent the urine absorbing pad from bending with these folding lines as a base point and turning up the ends in the longitudinal direction.
Therefore, the urine absorbing pad of aspect 1 easily conforms to the shape of the inner surface of the exterior body, and is less likely to turn over when pulled up when worn.

Further, in another aspect (aspect 2) of the present invention, in the urine absorbing pad of aspect 1, the urine absorbing pad has the first folding line and the second folding line in plan view in an unfolded state. further having at least one folding line extending in the width direction between
The adhesive portion is arranged so as to straddle the at least one folding line in the longitudinal direction.

Since the urine absorbing pad of aspect 2 has at least one folding line between the first folding line and the second folding line, the urine absorbing pad is further curved in the longitudinal direction. Since it is easily deformable, it can more accurately conform to the shape of the inner surface of the exterior body.
Furthermore, the adhesive portion also extends so as to straddle the fold line located between the first fold line and the second fold line in the longitudinal direction, and the portion having the fold line is attached to the interior inner surface of the exterior. Therefore, it is difficult for the part having the folding line to peel off from the inner surface of the outer packaging or to be folded unintentionally due to the crease of the folding line.
As a result, the urine absorbing pad of aspect 2 can more accurately adhere to the wearer's crotch region, and is excellent in comfort and leakage prevention during wear.

In still another aspect (aspect 3) of the present invention, in the urine absorbing pad of aspect 1 or 2, the urine absorbing pad is located at both ends in the width direction and extends in the longitudinal direction. Further a pair of leak-proof wall portions including a pair of side sheets arranged on the skin-facing surface side of the top sheet, and an elastic member fixed to each of the pair of side sheets and extending in the longitudinal direction. has
The adhesive portion may extend in the longitudinal direction to a position on the outer side in the longitudinal direction of the longitudinal fixed end of the elastic member.

Normally, if the urine absorbing pad has a pair of leak-proof wall portions that stand up due to the contractile force of such an elastic member, good leak-proof properties can be exhibited, but after being attached to the inner surface of the exterior, The contractile force of the elastic member may cause the urine absorbing pad to shrink inward in the longitudinal direction, making it easier for the ends in the longitudinal direction to turn over. Since the adhesive part extends to a position on the outer side in the longitudinal direction, the portion on which the contractile force of the elastic member acts can be steadily adhesively fixed to the inner surface of the exterior, and the incontinence absorption pad can be steadily adhesively fixed. It is possible to make it difficult to turn over the end of the.

In still another aspect (aspect 4) of the present invention, in the urine absorbing pad according to any one of aspects 1 to 3, in a plan view in an unfolded state, the urine absorbing pad has:
The longitudinal length from the first fold line to the one longitudinal edge of the absorbent body is the longitudinal length from the first fold line to the one longitudinal edge of the urine absorbing pad. longer than half the length of
The longitudinal length from the second fold line to the other longitudinal edge of the absorbent body is the longitudinal length from the second fold line to the other longitudinal edge of the urine absorbing pad. longer than half the length.

In the urine absorbing pad of aspect 4, the longitudinal length from each of the first folding line and second folding line to each edge in the longitudinal direction of the absorber is from each of the first folding line and second folding line. By being longer than half of the longitudinal length to each edge of the urine absorbing pad in the longitudinal direction, the length from each of the first folding line and the second folding line to each edge of the urine absorbing pad in the longitudinal direction To make it more difficult for the ends of the urine absorbing pad to be turned up in the longitudinal direction, because the region in which the absorbent body is arranged (that is, the region with relatively high rigidity) can be secured in the longitudinal direction widely in the region between the two. Even if it is temporarily turned over, it can be made easy to return.

In still another aspect (aspect 5) of the present invention, in the incontinence pad according to any one of aspects 1 to 4, the absorber is positioned at the center in the width direction and the It is characterized by having a deformation guide portion extending in the longitudinal direction.

When the urine absorbing pad of this aspect 5 is pulled up at the time of wearing, the portion where the deformation guide portion extending in the longitudinal direction is set as the base point (that is, the central portion in the width direction) is opposed to the skin. The urine absorbing pad bends in the width direction so as to protrude toward the face side, and the cross-sectional shape in the width direction tends to be deformed into a substantially W-shape, so the center part in the width direction of the urine absorption pad is the wearer's body. It becomes easier to adhere to the crotch area, and a better fit can be exhibited.
Furthermore, since the deformation guide portion extends in the longitudinal direction, urine excreted from the wearer can be diffused in the longitudinal direction along the deformation guide portion, thereby exhibiting better absorption performance. There is also the advantage of being able to

In still another aspect (aspect 6) of the present invention, in the urine absorbing pad of aspect 5, the deformation guide portion and the adhesive portion do not overlap in the thickness direction.

In the urine absorbing pad of Mode 6, the deformation-inducing portion and the adhesive portion do not overlap in the thickness direction, so that the above-described deformation-inducing portion is more likely to cause deformation when the pad is pulled up when worn. As a result, the urine absorbing pad of aspect 6 can more reliably exhibit the effects of the urine absorbing pad of aspect 5 above.

In still another aspect (aspect 7) of the present invention, in the urine absorbing pad according to any one of aspects 1 to 6, the absorber is the central portion in the longitudinal direction of the urine absorbing pad in plan view in an unfolded state. characterized by having a narrow portion having a relatively short width in the width direction.

In the urine absorbing pad of Mode 7, the absorber has the narrow width portion, so that the central portion in the longitudinal direction of the urine absorbing pad can be brought into close contact with the crotch portion of the wearer when worn. Further excellent fit can be exhibited. Furthermore, since the relatively rigid absorber in the urine absorbing pad is less likely to come into contact with the inner portions of the wearer's legs, there is also the advantage that the wearer is less likely to feel a foreign object.

According to the present invention, it is possible to provide an incontinence pad that easily conforms to the shape of the inner surface of the exterior body and that is less likely to turn over when pulled up when worn.

FIG. 1 is a plan view of an unfolded urine absorbing pad 1 according to an embodiment of the present invention, viewed from the topsheet 2 side in the thickness direction. FIG. 2 is a plan view of the urine absorbing pad 1 unfolded and viewed from the back sheet 3 side in the thickness direction. FIG. 3 is an explanatory diagram schematically showing how the urine absorbing pad 1 is folded along the first folding line L ₁ to the third folding line L ₃ . FIG. 4 is a diagram schematically showing how the urine absorbing pad 1 is attached to the inner surface of the exterior body 10. As shown in FIG. 4(a) is a side view, and FIG. 4(b) is a view from the direction of arrow V in FIG. 4(a) (that is, from above). FIG. 5 is a plan view of the incontinence absorbing pad 1 unfolded and viewed in the thickness direction from the side of the back sheet 3, showing the positional relationship between the elastic member 6 and the adhesive portion 7. As shown in FIG. FIG. 6 is a perspective view schematically showing a state in which the urine absorbing pad 1 is deformed from the deformation guide portion 43 extending in the longitudinal direction L so that the central portion in the width direction is deformed so as to protrude toward the skin facing surface. is.

(Various definitions)
BEST MODE FOR CARRYING OUT THE INVENTION Preferred embodiments of the urine absorbing pad of the present invention are described in detail below with reference to the drawings. In this specification, unless otherwise specified, "an object placed on a horizontal surface in an unfolded state (for example, a urine absorbing pad, an absorbent, etc.) Viewing in the thickness direction of an object from the top sheet side or the back sheet side in the case of a pad is simply referred to as "planar view."

Various directions and the like used in this specification are as follows unless otherwise specified.
As used herein, the term “longitudinal direction” refers to the “long direction of the length of a vertically long object (e.g., an unfolded urine absorption pad, absorbent body, etc.) in plan view”, and the term “width direction” refers to "The direction of the short length of a vertically elongated object in plan view" is referred to, and the "thickness direction" refers to the "perpendicular direction to the object placed on the horizontal surface in the unfolded state", and these longitudinal directions , the width direction and the thickness direction are orthogonal to each other.

Further, in this specification, "the axis located in the center of the longitudinal object in the width direction and extending in the longitudinal direction" is referred to as "the center axis in the width direction _CL ", and "the center of the longitudinal object in the longitudinal direction". The "axis located and extending in the width direction" is referred to as the "longitudinal central axis _CW ". In this connection, "relatively proximal to the longitudinal center axis _CW in the longitudinal direction of the elongated object" is referred to as "longitudinal inner side", and "longitudinal side of the elongated object". In the direction, "relatively distal to the longitudinal center axis _CW " is referred to as "longitudinal outer side". Similarly, "relatively proximal to the width direction center axis _CL in the width direction of the vertically elongated object" is referred to as "the inner side in the width direction", and "in the width direction of the vertically elongated object, The "distal side relative to the widthwise center axis _CL " is referred to as the "widthwise outer side".

Further, in this specification, unless otherwise specified, in the thickness direction of the incontinence pad, "relatively proximal to the wearer's skin surface when the incontinence pad is worn" is defined as the "skin-facing surface." The "non-skin facing side" refers to the "relative distal side with respect to the skin surface of the wearer when the incontinence absorbing pad is worn". In relation to this, in the urine absorption pad, the two surfaces of the skin-facing side and the non-skin-facing side facing each other in the thickness direction are referred to as the skin-facing side and the non-skin-facing side, respectively. In a constituent member such as a sheet or an absorbent body, the two surfaces, the skin facing side and the non-skin facing side facing each other in the thickness direction, are referred to as the skin facing side surface and the non-skin facing side surface, respectively.

[Urine absorption pad]
As shown in FIGS. 1 and 2, an incontinence pad 1 according to an embodiment of the present invention has a vertically elongated substantially rectangular outer shape having a longitudinal direction L and a width direction W in a plan view. there is In addition, the outer shape of the urine absorbing pad 1 is not limited to such an aspect, and any shape (for example, oval, hourglass, gourd, etc.) according to various applications and usage conditions, as long as it is vertically long. shape, etc.) can be adopted.

In the thickness direction of the urine absorbing pad 1, the liquid-permeable surface sheet 2 forming the skin-facing surface of the urine absorbing pad 1 and the back sheet 3 forming the non-skin-facing surface of the urine absorbing pad 1 are formed. , an absorbent body 4 arranged between these sheets, and an adhesive portion 7 arranged on the non-skin facing surface side of the back sheet 3 as a basic configuration.

In addition, in the urine absorbing pad 1 described above, as shown in FIG. 1 , the surface facing the skin of the surface sheet 2 is positioned at both ends in the width direction W of the urine absorbing pad 1 and extends in the longitudinal direction L. and a plurality of elastic members 6 fixed to each of the pair of side sheets 5, 5 and extending in the longitudinal direction L. It also has a part. Such a pair of leak-proof wall portions is such that when the urine absorbing pad 1 is attached to the inner surface of the exterior (that is, when the urine absorbing pad 1 is curved in the longitudinal direction L), the elastic member 6 is attached to the pair of side sheets 5, 5. are contracted in the longitudinal direction L to raise the widthwise inner side edge portions of the pair of side sheets 5, 5, thereby forming a pair of leakproof walls.

As shown in FIGS. 1 and 2, the urine absorbing pad 1 has an edge E1 on one side in the longitudinal direction L of the urine absorbing pad 1 and an edge _E1 on the other side in the longitudinal direction L in a plan view of the unfolded state. Three folding lines extending in the width direction W for folding the urine absorbing pad 1 in the longitudinal direction L between the edge _E2 , that is, one side edge _E1 in the longitudinal direction L of the urine absorbing pad 1 A first folding line _L1 at the closest position, a second folding line _L2 at a position closest to the other side edge _E2 in the longitudinal direction L of the urine absorbing pad 1, and a position between these folding lines and a first region _A1 defined by one side edge _E1 in _the longitudinal direction L and the first fold line _L1 , and the first fold A second area _A2 defined by the line _L1 and the third folding line _L3 ; a third area _A3 defined by the third folding line _L3 and the second folding line _L2 ; It has a fourth area _A4 defined by the two-fold line _L2 and the other side edge _E2 in the longitudinal direction L.

The incontinence pad 1 having such three fold lines has a third region A3 _and a fourth region _A4 bordering on the second fold line _L2 from the unfolded state as shown in FIG. 3(a). After being folded in the longitudinal direction L so that the skin-facing surfaces of are opposed to _each other, from that state, as shown in _FIG . Bend in the longitudinal direction L so that the surface and the skin-facing surface of the second region _A2 face each other (in other words, the skin-facing faces of the second region _A2 and the third region _A3 face each other) Further, from this state, as shown in FIG. 3C, the skin-facing surface of the first region _A1 and the non-skin-facing surface of the third region _A3 face each other across the first folding line _L1 . By being folded in the longitudinal direction L as shown in FIG. 3D, it can be folded into a compact form.

In addition, since the urine absorbing pad 1 has at least two folding lines extending in the width direction W, as shown in FIG. It is easy to deform into a shape that is curved in the longitudinal direction L (that is, substantially U-shaped), and it is easy to match the shape of the inner surface of the exterior body 10 .
In particular, the urine absorbing pad 1 described above further has the third folding line _L3 between the first folding line _L1 and the second folding line _L2 , so that the urine absorbing pad 1 can extend in the longitudinal direction. Since it is easier to deform into a shape that is curved in an L shape, it can more accurately conform to the shape of the inner surface of the exterior body 10 .

In addition, in the urine absorbing pad 1 described above, the third folding line _L3 is positioned at the central portion in the longitudinal direction of the urine absorbing pad 1 as shown in FIG. As a result, as shown in FIGS. 4(a) and 4(b), when the urine absorbing pad 1 is attached to the inner surface of the exterior body 10, the surface sheet is folded along the third folding line _L3 located in the central portion in the longitudinal direction. While bending the urine absorption pad 1 in the longitudinal direction L so that the 2 is on the inside (see FIG. 4(a)), the third folding line _L3 is used as a positioning mark (see FIG. 4(b)). , the urine absorbing pad 1 can be adhesively fixed to the inner surface of the exterior body 10, so that the urine absorbing pad 1 can be easily attached to an appropriate position on the inner surface of the exterior body 10. - 特許庁

Here, in the present specification, the term “longitudinal central portion” means that the distance in the longitudinal direction _L from the longitudinal central axis CW extending in the width direction W is the distance in the urine absorbing pad 1 from the longitudinal central axis _CW . means a portion within 15% of the total length of the The same applies to the central portion in the width direction.

In the urine absorbing pad 1 described above, the adhesive portion 7 extends in the longitudinal direction L along each of the first folding line L ₁ , the second folding line L ₂ and the third folding line L ₃ as shown in FIG. arranged to straddle.
The urine absorbing pad 1 has two folding lines near the ends in the longitudinal direction, that is, the first folding line _L1 closest to one side edge _E1 in the longitudinal direction L and the other side end in the longitudinal direction L. By arranging the adhesive part 7 so as to straddle each of the two folding lines of the second folding line _L2 closest to the edge _E2 in the longitudinal direction L, the portion having these folding lines can be steadily adhesively fixed to the inner surface of the exterior body 10, so that when the urine absorbing pad 1 is pulled up at the time of attachment, the urine absorbing pad 1 is bent with these folding lines as a base point, and the end in the longitudinal direction L is not turned over. can be made less likely to occur.
Therefore, the urine absorbing pad 1 easily conforms to the shape of the inner surface of the exterior body 10, and is less likely to be turned over when pulled up at the time of attachment.

Furthermore, in the urine absorbing pad 1 described above, the adhesive portion 7 extends in the longitudinal direction L also with respect to the third folding line _L3 located between the first folding line _L1 and the second folding line _L2 . Since the portion extending across the third folding line _L3 can be steadily adhesively fixed to the inner surface of the exterior body 10, the crease of the third folding line _L3 causes the third folding line L3 to be fixed. The portion having the folding line _L3 is less likely to be peeled off from the inner surface of the exterior body 10 or to be unintentionally bent. As a result, the urine absorbing pad 1 described above can be brought into close contact with the wearer's crotch area more accurately, and is excellent in comfort and leakage prevention during wear.

Further, as shown in FIGS. 1 and 2, the above-described incontinence pad 1 extends from the first folding line _L1 to the one side edge 41 in the longitudinal direction L of the absorber 4 in a plan view in an unfolded state. The length in the longitudinal direction, that is, the distance _d11 between the first folding line _L1 and the imaginary line _EA1 passing through one side edge 41 in the longitudinal direction L of the absorbent body 4 is from the first folding line _L1 to Longer than half of the longitudinal length _d12 to one side edge _E1 in the longitudinal direction L of the urine absorbing pad 1, and the other side in the longitudinal direction L of the absorber 4 from the second folding line _L2 The length in the longitudinal direction up to the edge 42, that is, the distance _d21 between the second folding line _L2 and the imaginary line _EA2 passing through the edge 42 on the other side in the longitudinal direction L of the absorbent body 4 is the second folding It is longer than half the longitudinal length _d22 from the line L2 to the other side edge _E2 of the urine absorbing pad ₁ in the longitudinal direction L.
Thus, in the urine absorbing pad 1, the longitudinal length from each of the first folding line _L1 and the second folding line _L2 to each edge in the longitudinal direction L of the absorber 4 is equal to the first folding line L. _{The first} and second folding lines L1 and the second folding lines L1 and _L2 are longer than half of the longitudinal length from each of the first and second folding lines L2 to each end edge of the urine absorbing pad ₁ in the longitudinal direction L. In the region between each of _L2 and each edge of the urine absorbing pad 1 in the longitudinal direction L, a region in which the absorbent body 4 is arranged (that is, a relatively rigid region) is secured widely in the longitudinal direction L. As a result, it is possible to make the ends of the urine absorbing pad 1 in the longitudinal direction L less likely to be turned up, and even if they are temporarily turned up, they can be easily returned.

In the present invention, the folded form of the urine absorbing pad, the position of each folding line, the number of folding lines, etc. are not limited to those of the above-described embodiment as long as the effects of the present invention are not hindered.
For example, the urine absorbing pad of the present invention is folded in the longitudinal direction L so that the skin-facing surfaces of the third region and the fourth region are opposed to each other across the second folding line from the unfolded state, and is folded in the first fold. After being folded in the longitudinal direction L so that the skin-facing surface of the first region and the skin-facing surface of the second region face each other across the line, the first region and the fourth region bordering on the third folding line are folded in the longitudinal direction L so that the non-skin-facing surfaces of the second and third regions face each other (in other words, the skin-facing faces of the second and third regions face each other) so that they can be folded compactly. good too.
Also, with respect to the folding lines, as long as there are at least two folding lines (that is, the first folding line and the second folding line) extending in the width direction, the above-described folding lines can be achieved within a range that does not hinder the effects of the present invention. It may have a third folding line or other folding lines (that is, four or more folding lines in total).

Hereinafter, various constituent members of the urine absorbing pad of the present invention will be described in further detail using the urine absorbing pad 1 of the above-described embodiment.

[Adhesive part]
In the urine absorbing pad 1, the adhesive portion 7 for adhesively fixing the urine absorbing pad 1 to the inner surface of the exterior body 10 such as a disposable diaper, as shown in FIG. are arranged in the form of six stripes extending continuously in the longitudinal direction L and lined up in the width direction W at predetermined intervals.

In addition, since a release sheet (not shown) for protecting the adhesive portion 7 is usually attached to the surface of the adhesive portion 7, when attaching the urine absorbing pad 1 to the inner surface of the exterior body 10, First, the urine absorbing pad 1 can be adhesively fixed to the inner surface of the exterior body 10 by pressing the adhesive portion 7 against the inner surface of the exterior body 10 after peeling off the release sheet.

In addition, the adhesive portion 7 extends continuously in the longitudinal direction L as described above, and extends across each of the first folding line, the second folding line, and the third folding line in the longitudinal direction L. there is
In the urine absorbing pad of the present invention, other arrangement forms are not particularly limited as long as the adhesive portion is arranged so as to straddle at least each of the first folding line and the second folding line in the longitudinal direction L. For example, , the adhesive portion does not have to straddle, in the longitudinal direction L, folding lines other than the first folding line and the second folding line (for example, the third folding line, etc.).

In addition, as shown in FIG. 1, the urine absorbing pad 1 described above is arranged on the surface of the surface facing the skin of the top sheet 2 so as to be positioned at both ends in the width direction W and extend in the longitudinal direction L. It further has a pair of leakage preventing walls including a pair of side sheets 5, 5 and an elastic member 6 fixed to each of the pair of side sheets 5, 5 and extending in the longitudinal direction L. The adhesive portion 7 extends in the longitudinal direction to a position on the outer side in the longitudinal direction from the longitudinal fixed end of the elastic member 6, as shown in FIG.
5, one end portion of the adhesive portion 7 in the longitudinal direction L is located longitudinally outward of an imaginary line 61 extending in the width direction W and including one fixed end of the elastic member 6. Further, the other side end of the adhesive portion 7 in the longitudinal direction L is also longitudinally outward of an imaginary line 62 that includes the other side fixed end of the elastic member 6 and extends in the width direction W. located in

Normally, if the urine absorbing pad has a pair of leak-proof wall portions that stand up due to the contractile force of such an elastic member, good leak-proof properties can be exhibited, but after being attached to the inner surface of the exterior, The contractile force of the elastic member may cause the urine absorbing pad to shrink inward in the longitudinal direction, making it easier for the ends in the longitudinal direction to turn over. Since the adhesive portion 7 extends to a position on the outer side in the longitudinal direction, the portion on which the contractile force of the elastic member 6 acts can be steadily adhesively fixed to the inner surface of the exterior. It is possible to make it difficult for the ends in the longitudinal direction L to be turned over.

In addition, in the urine absorbing pad 1 described above, the adhesive portion 7 is arranged in a region that overlaps with the absorbent body 4 in the thickness direction in a plan view of the unfolded state, as shown in FIG. They are arranged on both sides of a widthwise central axis _CL extending in the longitudinal direction L.
When the adhesive portion 7 is arranged in the region overlapping the absorber 4 in the thickness direction and is arranged on both sides of the width direction central axis line _CL extending in the longitudinal direction L, the absorber 4 and the adhesive portion 7 are arranged on both sides thereof. The overlapping portions in the thickness direction can be steadily adhered and fixed along the shape of the inner surface of the outer body 10, and the wearer's legs and buttocks do not move alternately from side to side while wearing the outer body 10. However, since it easily deforms along with the movement of the outer body 10, the urine absorbing pad 1 is less likely to be turned over or peeled off during wear.

As the adhesive that can be used for such an adhesive portion 7, any adhesive known in the art can be adopted. ), styrene-isoprene-styrene (SIS) and other pressure-sensitive adhesives mainly composed of styrene-based copolymers can be used.

In the urine absorbing pad of the present invention, the arrangement amount, arrangement shape, etc. of the adhesive portion are not particularly limited as long as the effects of the present invention are not impaired. For example, it can be arranged in the longitudinal direction L in an arbitrary linear form such as one or a plurality of linear (stripe), dotted, curved, zigzag, or the like. Further, the adhesive portion may extend continuously in the longitudinal direction L as described above, or may extend intermittently.

In the present invention, various dimensions (e.g., length in the longitudinal direction, length in the width direction, etc.) and basis weight of the adhesive portion are not particularly limited as long as they do not impede the effects of the present invention. Arbitrary dimensions, basis weight, and the like can be adopted in consideration of ease of fixation, fit, and the like.

[Top sheet]
As shown in FIGS. 1 and 2, the surface sheet 2 in the urine absorbing pad 1 described above extends from one side edge E1 in the longitudinal direction L of the urine absorbing pad ₁ to the other side edge in a plan view of the unfolded state. It has an elongated outer shape extending over the edge _E2 and extending from near one side edge in the width direction W of the urine absorbing pad 1 to near the other side edge. The surface sheet 2 is arranged on the side facing the skin in the thickness direction of the urine absorbing pad 1, and forms a contact surface that can come into contact with the wearer's skin, that is, the skin facing surface of the urine absorbing pad 1. It is composed of a permeable sheet-like member.

As shown in FIGS. 1 and 2, the topsheet 2 has a size slightly larger in the longitudinal direction L and the width direction W than the absorber 4 arranged on the non-skin facing side of the topsheet 2. A pair of side sheets 5, 5 are joined to the skin-facing surfaces of both ends in the width direction W. As shown in FIG.

The liquid-permeable sheet-like member that can be used as the topsheet 2 is not particularly limited as long as it has various properties (for example, liquid-permeability, texture, flexibility, strength, etc.) that can be used as the topsheet of the urine absorbing pad. Instead, nonwoven fabrics such as air-through nonwoven fabrics, spunlace nonwoven fabrics, spunbond nonwoven fabrics, point-bond nonwoven fabrics, and arbitrary liquid-permeable sheet-like members such as porous resin films can be used.

When a nonwoven fabric is used as the surface sheet, the nonwoven fabric may have a single-layer structure or a multi-layer structure of two or more layers. The type of fibers constituting such a nonwoven fabric is not particularly limited, and examples thereof include hydrophilic fibers such as cellulosic fibers and thermoplastic resin fibers subjected to hydrophilic treatment. These fibers may be used alone, or two or more types of fibers may be used in combination.

Cellulosic fibers that can be used as constituent fibers of the nonwoven fabric include, for example, natural cellulose fibers (eg, vegetable fibers such as cotton), regenerated cellulose fibers, purified cellulose fibers, semi-synthetic cellulose fibers, and the like.
Examples of thermoplastic resin fibers that can be used as constituent fibers of nonwoven fabrics include olefin resins such as polyethylene (PE) and polypropylene (PP), polyester resins such as polyethylene terephthalate (PET), and polyamides such as 6-nylon. Fibers made of known thermoplastic resins such as system resins can be mentioned. These resins may be used alone, or two or more kinds of resins may be used in combination.

The structure of the liquid-permeable sheet-like member used as the surface sheet 2 is not particularly limited as long as it does not impede the effects of the present invention. It may have a concave-convex structure (for example, a concave-convex structure with a wavy cross-sectional shape, a ridged groove structure, or the like) having convex portions and concave portions. When the liquid-permeable sheet-shaped member has such an uneven structure, each of the plurality of protrusions in the uneven structure has a hollow internal structure even if it has a solid internal structure. may be

The surface of the surface facing the skin of the surface sheet 2 may be coated with an arbitrary agent such as a plant-derived extract or a skin care agent, and the non-skin facing surface of the surface sheet 2 may be coated with a predetermined liquid. An intermediate sheet having diffusibility and liquid permeability may be arranged.

In the present invention, the outer shape, various dimensions, basis weight, etc. of the topsheet are not particularly limited as long as it can be used as the topsheet of the urine absorbing pad, and the desired liquid permeability, touch, flexibility, strength, etc. can be obtained. An arbitrary shape, various dimensions, basis weight, etc. can be adopted according to the requirements.

[Back sheet]
As shown in FIG. 2, the back sheet 3 of the urine absorbing pad 1 described above extends from one side edge E1 to the other side edge _E2 in the longitudinal direction L _of the urine absorbing pad 1 in plan view in the unfolded state. It has a longitudinally long outer shape that extends across the urine absorbing pad 1 and extends from one side edge to the other side edge in the width direction W of the urine absorbing pad 1 . As shown in FIG. 2, the back sheet 3 is arranged on the non-skin facing side in the thickness direction of the urine absorbing pad 1, forms the non-skin facing surface of the urine absorbing pad 1, and serves as an absorber. It is composed of a liquid-impermeable sheet-like member that prevents urine that has passed through 4 from leaking out of the urine absorbing pad 1 .

An adhesive portion 7 for adhesively fixing the urine absorbing pad 1 to the inner surface of the outer package 10 is arranged on the non-skin-facing surface of the backsheet 3 .

The liquid-impermeable sheet-like member that can be used as the backsheet 3 is not particularly limited as long as it can prevent permeation of urine excreted from the wearer. Polyolefin resin fiber, polyester resin fiber, various composite fibers such as core-sheath type composite fibers, etc.); porous or non-porous hydrophobic thermoplastic resins such as PE and PP A known liquid-impermeable sheet-like member such as a resin film of the above; a laminate obtained by bonding a nonwoven fabric to the resin film; a laminated nonwoven fabric such as an SMS nonwoven fabric.
A leak-proof sheet formed of a thermoplastic resin film such as polyethylene may be arranged on the side of the back sheet 3 facing the skin.

In the present invention, the outer shape, various dimensions, basis weight, etc. of the backsheet are not particularly limited as long as they can be used as the backsheet of the urine absorption pad, and are determined according to the desired leakproof performance, breathability, strength, etc. Any shape, various dimensions, basis weight, etc. can be adopted.

[Absorber]
As shown in FIGS. 1 and 2, the absorber 4 in the urine absorbing pad 1 described above is arranged in one direction in the longitudinal direction L with the central portion in the longitudinal direction of the urine absorbing pad 1 as the center in a plan view of the unfolded state. It extends over a wide area in _the longitudinal direction L from the first region _A1 near the side edge _E1 to the fourth region _A4 near the other side edge E2, and also in the width direction W It has a vertically elongated outer shape that extends over a wide range from near one side edge to near the other side edge.

The absorber 4 is disposed between the topsheet 2 and the backsheet 3 in the thickness direction of the urine absorbing pad 1, and is capable of absorbing and holding the wearer's urine permeating through the topsheet 2. It is formed by a water absorbing member.
The absorbent body 4 is bonded to the topsheet 2 on the skin-facing side and the backsheet 3 on the non-skin-facing side by any adhesive such as a hot-melt adhesive.

The absorbent member that can be used as the absorber 4 is not particularly limited as long as it can absorb and retain urine excreted from the wearer, and a known absorbent member in the art can be adopted. Examples of such water-absorbent members include at least one absorbent core made of a predetermined water-absorbent material and covered with a hydrophilic core wrap sheet such as tissue.
Here, examples of the water-absorbent material constituting the absorbent core include hydrophilic fibers and superabsorbent polymers. More specifically, pulverized pulp, cotton, rayon, cellulose-based fibers such as acetate; granules composed of superabsorbent polymers such as sodium acid copolymers; mixtures of any combination thereof;
In the urine absorbing pad 1 described above, the absorbent body 4 is composed of an absorbent core made of a water absorbent material and a core wrap sheet covering it.

In the urine absorbing pad 1 described above, as shown in FIGS. 1 and 2, the absorber 4 is located in the center in the width direction and extends in the longitudinal direction L in a plan view of the unfolded state. Alternatively, it has a unique structure having a deformation guide portion 43 formed of a non-penetrating slit portion and a narrow portion 44 having a relatively short width direction length at the longitudinal central portion of the urine absorbing pad 1 .
Since the urine absorbing pad 1 is provided with the absorber 4 having such a deformation guide portion 43, the deformation guide portion extending in the longitudinal direction L as shown in FIG. With 43 as a base point, the urine absorbing pad 1 is bent in the width direction W so that the portion (that is, the central portion in the width direction) where the deformation induction portion 43 is formed protrudes toward the skin facing surface side, and the width direction W Since the cross-sectional shape is easily deformed into a substantially W-shape, the central portion in the width direction of the urine absorbing pad 1 is easily brought into close contact with the crotch portion of the wearer, and a better fit can be exhibited.
Furthermore, since the deformation guide portion 43 described above extends in the longitudinal direction L, urine excreted from the wearer can be diffused in the longitudinal direction L along the deformation guide portion 43, which is more excellent. There is also an advantage that absorption performance can be exhibited.

Moreover, in the urine absorbing pad 1 described above, as shown in FIG. 2, the deformation guide portion 43 and the adhesive portion 7 do not overlap in the thickness direction.
If the deformation guide portion 43 and the adhesive portion 7 do not overlap in the thickness direction in this manner, the above-described deformation by the deformation guide portion 43 is more likely to be obtained when the adhesive portion 7 is lifted up at the time of attachment, so the above effect is achieved. The effect, that is, the function and effect that the central portion in the width direction of the urine absorbing pad 1 can be easily brought into close contact with the crotch portion of the wearer, and a better fit can be exhibited more reliably.

Furthermore, in the urine absorbing pad 1, the deformation guide portion 43 is positioned between the _first folding line _L1 and the second folding line _L2 as shown in FIG. It extends in the longitudinal direction L so as to straddle.
When the deformation guide portion 43 extends in the longitudinal direction L in this manner, the portion in which the deformation guide portion 43 is formed, that is, the central portion in the longitudinal direction L and the width direction W can be more accurately positioned in the crotch portion of the wearer. Since it can be brought into close contact with the body, it is possible to exhibit even better fit. In addition, since the deformation guide portion 43 does not extend in the longitudinal direction L so as to straddle the first fold line _L1 and the second fold line _L2 , the urine excreted from the wearer is deformed. Even if the urine spreads in the longitudinal direction L along the portion 43, the urine is leaked from the outer side in the width direction of the urine absorbing pad 1 along the creases of the first folding line _L1 and the second folding line _L2 . There is also an advantage that it is difficult for things to happen.

The shape of the deformation-inducing portion 43 is not particularly limited as long as it can promote the above-described deformation of the absorbent body 4 and thus the urine absorbing pad 1. In addition to the above-described penetrating or non-penetrating slit portion, for example, water-absorbing A low basis weight portion obtained by reducing the basis weight of a flexible material, and a compressed portion obtained by compressing the absorbent body in the thickness direction by embossing or the like can be employed.

In addition, in the urine absorbing pad of the present invention, since it is not an essential constituent element for the absorbent body to have a deformation-inducing portion, the absorbent body has, for example, a substantially uniform basis weight as a whole, and It may have a structure in which both surfaces on the non-skin facing side are substantially flat.

Further, in the urine absorbing pad 1, the absorber 4 has the narrow portion 44 having a relatively short width in the central portion in the longitudinal direction of the urine absorbing pad 1, as described above.
When the absorber 4 has such a narrow portion 44, the central portion in the longitudinal direction of the urine absorbing pad 1 can be brought into close contact with the crotch portion of the wearer when worn. It is possible to demonstrate fit. Furthermore, since the relatively rigid absorbent body 4 in the urine absorbing pad 1 is less likely to come into contact with the inner portions of the wearer's legs, there is also the advantage that the wearer is less likely to feel a foreign object.

In addition, in the urine absorption pad of the present invention, since it is not an essential constituent element for the absorbent body to have a narrow width portion, the absorbent body has a structure in which, for example, the length in the width direction is constant in the longitudinal direction. may

In the present invention, the planar view shape, various dimensions, basis weight, etc. of the absorbent are not particularly limited as long as they can be used as an absorbent for a urine absorbing pad, and are determined according to desired absorption performance, flexibility, strength, etc. Any shape (eg, rectangular, elliptical, hourglass, etc.), various dimensions, basis weight, etc. can be employed.
Further, the position where the absorbent is arranged is not particularly limited as long as it includes the central portion in the longitudinal direction of the urine absorbing pad. may be

[Side seat]
In the urine absorbing pad 1 described above, the pair of side sheets 5, 5 are arranged at both ends in the width direction W of the urine absorbing pad 1 at positions on the side of the surface facing the skin of the top sheet 2, as shown in FIG. When the urine absorbing pad 1 is attached to the inner surface of the exterior body 10 (that is, when the urine absorbing pad 1 is curved in the longitudinal direction L), it is fixed to each of the pair of side sheets 5, 5 and is attached to the longitudinal direction. A pair of elastic members 6 extending in the longitudinal direction L can be contracted in the longitudinal direction L by the plurality of elastic members 6 extending in the direction L, and the edges on the inner side in the width direction can stand up to form a pair of leakproof walls. It is composed of a strip-shaped liquid-impermeable sheet.
Each of the pair of side sheets 5, 5 extends from one _side edge E1 to the other side edge _E2 in the longitudinal direction L of the urine absorbing pad 1 in plan view.

Each of the pair of side sheets 5, 5 has an outer side edge in the width direction W of the back sheet 3 with an arbitrary bonding means (not shown) such as a hot-melt adhesive. While it is joined to the end to form a fixed end, the inner side end in the width direction W is not joined to any sheet-like member and forms a free end.
In each of the pair of side sheets 5, 5, an elastic member 6 such as rubber thread is arranged along the longitudinal direction L, as shown in FIG.

The strip-shaped liquid-impermeable sheet that can be used as the side sheet 5 is particularly limited as long as it has various properties (for example, liquid impermeability, touch, flexibility, strength, etc.) that can be used as the side sheet of the urine absorbing pad. For example, hydrophobic non-woven fabrics (e.g., spunbond non-woven fabrics, point-bond non-woven fabrics, SMS non-woven fabrics, etc. having hydrophobicity or hydrophobicity), liquid-impermeable synthetic resin films, and these A laminate or the like can be used.

The external shape, basis weight, thickness, etc. of the strip-shaped liquid-impermeable sheet that can be used as the side sheet are not particularly limited as long as they do not impair the effects of the present invention, and depending on the desired liquid-impermeability, texture, flexibility, etc. Any shape, basis weight, thickness, etc. can be adopted.

In addition, in the urine absorbing pad of the present invention, provision of such side sheets is not an essential component, so the urine absorbing pad does not have to be provided with side sheets.

(elastic member)
In addition, in the urine absorbing pad 1 described above, as shown in FIG. Three elastic members 6 (six in total) are arranged along the longitudinal direction L to promote the erection of the inner edge.

The elastic member 6 arranged on each of the pair of side sheets 5, 5 extends longitudinally to the urine absorbing pad 1 through the pair of side sheets 5, 5 in the unfolded state, and further through the pair of side sheets 5, 5. It is not particularly limited as long as it can impart a contractile force of L, for example, thread rubber or flat rubber made of natural rubber; Any resilient member may be used, such as those molded into a .

The dimensions, shape, and number of the elastic members 6 are such that the pair of side sheets 5, 5 in the unfolded state and the contractile force in the longitudinal direction L can be imparted to the urine absorbing pad 1 via the pair of side sheets 5, 5. For example, the longitudinal length of the elastic member 6 is 1/2 or more, preferably 2/3, of the longitudinal length (total length) of the urine absorbing pad 1 as a whole. 200dtex to 800dtex, preferably 300dtex to 700dtex can be adopted as the fineness of the elastic members 6, and the number of the elastic members 6 can be , may be arranged one by one in each of the pair of side sheets 5, 5, or may be arranged by two or three or more.

[Round seal part]
As shown in FIGS. 1 and 2, the urine absorbing pad 1 described above is intermittently arranged along the outer peripheral edge of the urine absorbing pad 1 in plan view, and the urine absorbing pad 1 is formed by embossing or the like. It has a round seal portion that is compressed in the thickness direction.
As shown in FIGS. 1 and 2, such a round seal portion includes a pair of first seal portions 81, 81 formed to extend in the longitudinal direction L at both ends in the width direction of the first region _A1 , A pair of second seal portions 82 formed to extend in the longitudinal direction L from the third region _A3 to the fourth region _A4 at both ends in the width direction of the third region A3 _and the fourth region A4 _; 82, a third seal portion 83 formed at one end in the longitudinal direction L of the urine absorbing pad 1, and a fourth seal portion 84 formed at the other end in the longitudinal direction L. there is

In the incontinence pad of the present invention, the configuration of the round seal portions, that is, the arrangement of the seal portions is not limited to such an aspect, but the incontinence pad has at least the first region and the fourth region in the width direction. It is preferable to have round seal portions at both ends.
When the urine absorbing pad has such a round seal portion, it is possible to improve the rigidity of both width direction end portions where there is no absorber (that is, the rigidity is relatively low). In this case, it is possible to further prevent the urine absorbing pad from being turned over or peeled off.
Furthermore, when the round seal portions are not arranged at least at the widthwise end portions of the central portion in the longitudinal direction of the urine absorbing pad, the highly rigid seal portions are less likely to come into contact with the inner portions of the wearer's legs. There is also the advantage that it is possible to make it difficult for the user to feel a foreign object.

The dimensions, shape, arrangement, etc., of the individual seal portions that make up the round seal portion are not particularly limited as long as they do not hinder the effects of the present invention. Placement position can be adopted.

In addition, in the urine absorbing pad of the present invention, since having such a round seal portion is not an essential component, the urine absorbing pad does not have to have a round seal portion.

The urine absorbing pad of the present invention is not limited to the above-described embodiments, and can be appropriately combined, substituted, modified, etc. without departing from the scope and spirit of the present invention. In this specification, the ordinal numbers such as "first" and "second" are for distinguishing the matters to which the ordinal numbers are attached, and mean the order, priority, importance, etc. of each matter. not something to do.

REFERENCE SIGNS LIST 1 urine absorbing pad 2 top sheet 3 back sheet 4 absorbent body 5 side sheet 6 elastic member 7 adhesive portion A ₁ first area A ₂ second area A ₃ third area A ₄ fourth area E ₁ one longitudinal end Edge E ₂ Other side edge in longitudinal direction L ₁ First folding line L ₂ Second folding line L ₃ Third folding line

Claims (7)

A topsheet forming a skin-facing surface, a backsheet forming a non-skin-facing surface, an absorbent body disposed between these sheets, and an adhesive disposed on the non-skin-facing surface of the backsheet. A urine absorbing pad having a longitudinal direction, a width direction and a thickness direction, comprising:
The urine absorbing pad has at least two folding lines extending in the width direction in a plan view in an unfolded state,
The at least two fold lines are
a first fold line located closest to one longitudinal edge of the urine absorbing pad;
a second fold line located closest to the other longitudinal edge of the urine absorbing pad;
The adhesive portion is arranged to straddle at least each of the first folding line and the second folding line in the longitudinal direction,
The urine absorption pad comprises a pair of side sheets arranged on the surface of the surface sheet facing the skin so as to extend in the longitudinal direction and at both ends in the width direction, and the pair of side sheets. and a resilient member fixed to each of the and extending in the longitudinal direction.
The adhesive portion extends in the longitudinal direction to a position on the outer side in the longitudinal direction of the longitudinal fixed end of the elastic member,
The absorbent body has a deformation guide portion positioned in the center in the width direction and extending in the longitudinal direction in a plan view of the unfolded state,
The urine absorbing pad has a third folding line extending in the width direction between the first folding line and the second folding line in a plan view in an unfolded state, and further has a third folding line extending in the width direction between the first folding line and the second folding line. A first area defined by the side edge and the first fold line, a second area defined by the first fold line and the third fold line, and the third fold line and the second fold. and a fourth region defined by the second fold line and the other side edge in the longitudinal direction,
In a plan view of an unfolded state, the deformation guide portion does not straddle the first fold line and the second fold line in the second region and the third region, and does not cross the third fold line. characterized by extending in the longitudinal direction so as to straddle,
The urine absorbing pad. A topsheet forming a skin-facing surface, a backsheet forming a non-skin-facing surface, an absorbent body disposed between these sheets, and an adhesive disposed on the non-skin-facing surface of the backsheet. A urine absorbing pad having a longitudinal direction, a width direction and a thickness direction, comprising:
The urine absorbing pad has at least two folding lines extending in the width direction in a plan view in an unfolded state,
The at least two fold lines are
a first fold line located closest to one longitudinal edge of the urine absorbing pad;
a second fold line located closest to the other longitudinal edge of the urine absorbing pad;
The adhesive portion is arranged to straddle at least each of the first folding line and the second folding line in the longitudinal direction,
The urine absorption pad comprises a pair of side sheets arranged on the surface of the surface sheet facing the skin so as to extend in the longitudinal direction and at both ends in the width direction, and the pair of side sheets. and a resilient member fixed to each of the and extending in the longitudinal direction.
The adhesive portion extends in the longitudinal direction to a position on the outer side in the longitudinal direction of the longitudinal fixed end of the elastic member,
The urine absorbing pad has a third folding line extending in the width direction between the first folding line and the second folding line in a plan view in an unfolded state, and further has a third folding line extending in the width direction between the first folding line and the second folding line. A first area defined by the side edge and the first fold line, a second area defined by the first fold line and the third fold line, and the third fold line and the second fold. and a fourth region defined by the second fold line and the other side edge in the longitudinal direction,
At least in the first region and the fourth region, characterized by having round seal portions at both ends in the width direction,
The urine absorbing pad. The urine absorbing pad further has at least one folding line extending in the width direction between the first folding line and the second folding line in a plan view in an unfolded state,
The urine absorbing pad according to claim 1 or 2 , wherein the adhesive portion is arranged so as to straddle the at least one folding line in the longitudinal direction. In a plan view in an unfolded state, the urine absorbing pad is:
The longitudinal length from the first fold line to the one longitudinal edge of the absorbent body is the longitudinal length from the first fold line to the one longitudinal edge of the urine absorbing pad. longer than half the length of
The longitudinal length from the second fold line to the other longitudinal edge of the absorbent body is the longitudinal length from the second fold line to the other longitudinal edge of the urine absorbing pad. 4. The urine absorbing pad according to any one of claims 1 to 3 , characterized in that the length is longer than half of the width. The incontinence pad according to claim 1 , wherein the deformation guide portion and the adhesive portion do not overlap in the thickness direction. 6. The absorbent according to any one of claims 1 to 5 , wherein the absorber has a narrow portion having a relatively short width in a central portion in the longitudinal direction of the urine absorbing pad in plan view in an unfolded state. The urine absorbing pad according to any one of the items. 3. The urine absorbing pad according to claim 2 , wherein said round seal portions are not arranged at least at both width direction end portions of said urine absorbing pad in its central portion in the longitudinal direction.

Images