JP3744925B2 - Disposable urine pad - Google Patents

Description

  The present invention relates to a disposable urine collection pad for treating excreted body fluid.

  WO 93/09739 discloses a sanitary napkin having an elastic stretchable flap. This napkin has a first elastic stretchable flap that forms a side edge of the napkin, and a second elastic stretchable flap that is located on the inner surface side of the napkin and can stand upward from the liquid absorbent core. . The first flap is formed by superimposing and bonding a liquid-permeable top sheet covering the core and a liquid-impervious back sheet on the outside of the side edge of the core. A first elastic member extends between the sheets in an extended state in the longitudinal direction of the flap. The second flap is formed by a sheet bonded to the upper surface of the top sheet, and the sheet is folded at the free edge portion having elasticity, and the second elastic member is interposed between the folded sheets. Is extended in the longitudinal direction of the second flap. When the napkin is worn, the first and second flaps come into contact with the wearer's skin while elastically expanding and contracting.

  In the known napkin, the free edge portion of the first flap is a portion obtained by cutting the overlapping front and back sheets so that the napkin takes a required shape, and forms a part of the outline of the napkin. The first elastic member is disposed in the vicinity of the free edge along the free edge and imparts stretchability to the free edge. When the napkin is worn, the free edge portion of the first flap, that is, the cut surface of the front and back sheets, may be irritating to the wearer's skin because it is not rounded. In addition, since the first elastic member acts to increase the rigidity of the free edge portion, the first elastic member further increases the stimulation by the cut and causes the wearing feeling of the napkin to deteriorate.

  In addition, the free edge of the second flap is formed of a second elastic member and a sheet bent so as to wind the second elastic member, and the second elastic member and this sheet are integrated into the skin of the wearer. May come into contact with the bite. Therefore, this 2nd flap becomes another cause which worsens the wearing feeling of a napkin.

  This invention makes it the subject to relieve the irritation | stimulation to the skin by an elastic elastic flap in a disposable urine collection pad.

  The present invention for solving the above-described problems is directed to a main body that has a contact surface with respect to the skin and a non-contact surface on the back side of the skin, and is capable of absorbing and holding body fluid between the two surfaces. It is a disposable urine collecting pad provided with side flaps positioned on both sides of the body and leakproof flaps positioned on both sides of the main body.

In such a urine collection pad, the present invention is characterized in that the side portion and the leak-proof flap have a width direction and a vertical direction, and sandwich the same along the side edge of the main body so as to face the surface of the main body. And a series of sheets bent so as to be divided into a first part and a second part respectively positioned on the back side, and the first part of the sheet located on the front side of the main body is While joining to the front surface side, almost the whole area of the second portion of the sheet located on the back surface side of the main body is bonded to the back surface side of the main body and extends outward from the side edge of the main body. The side flaps having an annular edge are formed, the first portions in the width direction are folded over and are not joined to the surface side of the main body located on the surface side of the main body, and the inner surfaces facing each other Has an annular edge formed by joining together The leakage prevention flap is formed, and an elastic member for elastically expanding and contracting each of the side portion and the leakage prevention flap is provided in the inside of the annular edge and extends in the length direction of the annular edge. , At least 1 mm apart and joined from the top edge of each annular edge to each side edge and each base edge side of the leak-proof flap, and the main body has both side edges and both edges, and these side edges and edges. The edges have corners intersecting each other, and the corners are formed as inclined edges .

  The present invention includes the following embodiments.

  The maximum dimension of the separation of the elastic member is 20 mm.

  Fasteners are provided along the edge of the back surface of the main body, and both end portions of the fastener are located at the corners of the main body.

  The disposable urine collection pad according to the present invention forms a side portion having an annular edge and a leak-proof flap, and an elastic member for elasticizing the flap in the annular edge is provided near the base edge of the flap. When the annular edge comes into contact with the skin, the annular edge is deformed to provide a cushioning effect, and the annular edge is pressed against the skin by the action of the elastic member to press the urine collecting pad. The problem of worsening the wearing feeling can be solved.

  The details of the disposable urine collection pad according to the present invention will be described with reference to the accompanying drawings.

  FIG. 1 is a view showing a state in which a urine collecting pad 1 as an embodiment of the present invention is attached to a diaper cover 2 which is an example of clothes. The diaper cover 2 is a laminate of a nonwoven fabric inner sheet 3 and a plastic film outer sheet 4, and includes a front waistline region 6, a back waistline region 7, and both these regions 6, 7. Crotch region 8 located. At the edges of the front and rear waist regions 6 and 7 extending in the waist direction, the waist elastic members 11 and 12 are between the inner and outer surface sheets 3 and 4 and attached to at least one inner surface of these sheets 3 and 4 in an extended state. ing. At the side edge portion extending in the front-rear direction of the crotch region 8, the leg-hole elastic member 13 is located between the inner and outer surface sheets 3, 4 and is joined to at least one inner surface of these sheets 3, 4 in an extended state. A tape fastener 15 extends outward from the side edge of the rear waist region 7. The fastener 15 is composed of a hook member of a mechanical fastener composed of a loop member and a hook member. When the diaper cover 2 is worn, the fastener 15 is attached to the outer surface sheet 4 in the front waistline region 6. It fastens to the target tape 16 made of the loop member.

  The urine collecting pad 1 can be attached to and detached from the inner surface of the diaper cover 2, and a pair of side edges 17 extending in the longitudinal direction in the drawing in parallel to each other in the front and rear waist regions 6 and 7 around the crotch region 8. In the front and rear waist regions 6 and 7, a pair of end edges 18 (see FIG. 2) that extend in the lateral direction in the figure parallel to each other in the waist direction and intersect the pair of side edges 17 at the corners of the pad 1. And an inclined edge 19 extending between the end of the side edge 17 and the end of the end edge 18 so as to form the four corners 21 of the pad 1. A leak-proof flap 20 extending between the pair of end edges 18 in parallel with the side edges 17 is formed inside the side edges 17.

  2, 3, 4, and 5 are a front view, a rear view, and a front view of the urine collection pad 1 removed from the diaper cover 2, and a cross-sectional view and a front view along the center line IV-IV that bisects the length of the pad 1. It is a VV line sectional view of a figure. The pad 1 has a liquid-permeable surface sheet 22 that comes into contact with the wearer's skin, a liquid-impermeable back sheet 23 located on the back side of the surface sheet 22, and a body fluid-absorbing sheet interposed between the two sheets 22 and 23. It has a main body 5 composed of a core 24 and is formed symmetrically with respect to a center line C-C extending in the longitudinal direction by dividing the width into two.

  The core 24 has a pair of side edges 24A extending in parallel in the vertical direction, a pair of end edges 24B extending in parallel in the horizontal direction, and the ends of the side edges 24A so that the width of the core 24 is narrowed. And an inclined edge 24C that extends while inclining slightly toward the inside of the core 24 and is connected to the end of the end edge 24B. The central portion in the longitudinal direction of the side edge 24A is curved inward, and the entire core 24 has an hourglass shape.

  The top sheet 22 is inclined while slightly curving from the end of the side edge 22A at the corner portion 21 and a side edge 22A extending linearly in the vertical direction along the side edge 24A of the core 24, an end edge 22B extending in the horizontal direction. And an inclined edge 22C connected to the end of the end edge 22B.

  The back sheet 23 is substantially the same shape and size as the top sheet 22, and includes a side edge 23 </ b> A linearly extending along the side edge 24 </ b> A of the core 24, an end edge 23 </ b> B extending in the lateral direction, and a corner 21. And the inclined edge 23C extending from the side edge 23A while being slightly curved and connected to the end of the end edge 23B. The front and back sheets 22 and 23 extend outward from each of the curved portion 24D, the end edge 24B, and the inclined edge 24C of the side edge 24A of the core 24 and overlap with each other via a hot melt adhesive (not shown). By joining together, a side flap 10A extending in the lateral direction from the main body 5 and an end flap 10B extending in the vertical direction are formed.

The leak-proof flap 20 is formed of a sheet such as a nonwoven fabric or a plastic film, preferably a liquid-impervious sheet, more preferably a gas-impermeable liquid-impervious sheet 26, and there is no particular limitation on the length thereof. In the illustrated example, it extends in the longitudinal direction along the side edge 17 of the pad 1 and reaches an end edge 18 and an inclined edge 19. The sheet 26 used for the flap 20 is sandwiched between the side edges 17 of the main body, and is folded so as to be divided into a first portion and a second portion, respectively, located on the front surface side and the back surface side of the main body. A series of sheets, and on the surface side of the pad 1, the top sheet 22 is bonded to the top sheet 22 through a hot melt adhesive 27 at a corner bonding area 51 and a central bonding area 52 indicated by hatching (FIG. 2, 4), on the back side of the pad 1, almost the entire second portion is joined to the back sheet 23 through a hot melt adhesive 27 in a joining region 28 indicated by hatching (see FIGS. 3 and 4). . Further, the sheet 26 is folded and overlapped on the inner surface side of the sheet 26 along a folding line 39 extending in the longitudinal (length) direction on the surface side of the pad 1, and the sheets 26 are joined by the hot melt adhesive 30 </ b> A. And the annular edge 40A of the leak-proof flap 20 whose section exhibits an annular shape is formed.

  In the annular edge portion 40A, which is a free edge of the leak-proof flap 20, a first elastic member 34 for extending and contracting the elastic flap is extended between the sheets 26 and extends in the longitudinal direction. The two end portions are joined to the sheet 26 continuously or intermittently via a hot melt adhesive (not shown). The first elastic member 34 may be immediately inside the folding line (top edge) 39, but is separated from the folding line 39 by a dimension P as shown in the example, and the dimension P is at least 1 mm. It is desirable that the thickness is in the range of 1 to 20 mm.

  Further, the sheet 26 is folded and overlapped along the side edge 17 of the pad 1, and the sheets 26 are joined to each other by the hot melt adhesive 30B to form the annular edge 40B of the side flap 10A having an annular cross section. is doing.

  Between the sheets 26 of the side flap 10A, a second elastic member 36 for extending and contracting the flap in the longitudinal direction is located, and a hot melt adhesive (not shown) is provided on the inner surface of the sheet 26. ) Are joined continuously or intermittently. The second elastic member 36 is separated from the side edge (top edge) 17 by a dimension R, and the separation dimension R is at least 1 mm, preferably in the range of 1 to 20 mm. The second elastic member 36 is disposed so as to face the curved portion 24D so that a gather can be formed on the side flap 10A located outside the curved portion 24D of the core 24.

  As shown in FIG. 3, on the back side of the pad 1, a rectangular fastener 31 is provided inside each end edge 24 </ b> B of the core 24. The fastener 31 is used for removably fixing the pad 1 to the inner surface of the diaper cover 2, and either a hook member or a loop member forming a mechanical fastener, an adhesive tape, or the like is used for this. Is done. The fastener 31 is attached to the back sheet 23 with a hot-melt adhesive or a pressure-sensitive adhesive so that the end portion 32 extending in the lateral direction of the pad 1 is positioned at the corner portion 21 of the pad 1.

  When the diaper cover 2 integrated with the pad 1 is worn and bent in the front-rear direction as shown in FIG. 1, the pad 1 is also bent and the first and second elastic members 34 and 36 of the pad 1 contract. When the first elastic member 34 contracts, the leak-proof flap 20 rises with the central joint area 52 as the base edge as shown by a two-dot chain line in FIG. The pocket 20A to be formed is formed. For example, the annular edge portion 40A of the leak-proof flap 20 abuts on the groin portion of the wearer. When the second elastic member 36 contracts, a gather is generated between the annular edge 40B of the side flap 10A and the base edge along the curved portion 24D of the core 24, and the gather is a wearer of the pad 1. It touches while stretching and contracting around the skin, for example, around the legs.

  As described above, the annular edge 40A of the leak-proof flap 20 and the annular edge 40B of the side flap 10A have an annular cross section, and the first and second elastic members 34 and 36 have the annular edge 40A. , 40B is separated from the top edges 39 and 17, so when these flaps 20, 10A come into contact with the skin, the sheet 26 swells as indicated by the one-dot chain line in FIG. 4 at each annular edge 40A, 40B. By being deformed so as to be crushed, the first and second elastic members 34 and 36 can be prevented from biting into the skin. Since the first and second elastic members 34 and 36 are joined to the sheet 26 at both ends and do not move within the annular edges 40A and 40B, the first and second elastic members 34 and 36 do not depend on the wearing state of the pad 1. Biting of the members 34 and 36 can be prevented.

  FIG. 6 is a drawing similar to FIG. 4 showing an example of the embodiment of the present invention. In the urine collecting pad 1, the back sheet 23 extends to the side longer than the top sheet 22 to form the side flap 110A, and the leak-proof flap 120 is formed by the sheet 26 joined to the upper surface of the side flap 110A. ing. As described above, the side flap 110A and the leak-proof flap 120 of the urine collecting pad 1 may be formed of different sheet materials. However, in any case, the side flaps 110A and the leak-proof flap 120 have an annular cross section of the annular edge portions 140A and 140B.

  It is preferable to use a flexible nonwoven fabric having a smaller basis weight than the side flaps 10A and 110A for the leak-proof flaps 20 and 120 located on the surface side of the urine collecting pad 1.

  In this invention, the joining of the members by the hot melt adhesive can be replaced with welding or other joining means. The present invention can be applied to diapers, training pants, sanitary napkins, and panty liners in addition to urine collection pads.

The perspective view of the disposable urine collection pad attached to the diaper cover. The partial fracture front view of a urine collection pad. The partial fracture rear view of a urine pad. The figure which shows the IV-IV line | wire cut surface of FIG. The figure which shows the VV line | wire cut surface of FIG. Drawing similar to FIG. 4 which shows an example of an embodiment.

Explanation of symbols

1 Urine pad 5 Main body 10A, 110A Side flap 17 Top edge (side edge or folding line)
20,120 Leakproof flap 26 Sheet 34 Elastic member 36 Elastic member 39 Top edge (folding curve)
40A, 140A annular edge 40B, 140B annular edge

Claims (3)

A main body having a contact surface against the skin and a non-contact surface on the back side thereof, capable of absorbing and holding bodily fluid between the both surfaces, side flaps positioned on both sides of the main body, and both side portions of the main body In a disposable urine pad with a leak-proof flap located on each of the
The side part and the leak-proof flap have a width direction and a longitudinal direction, sandwiching the side part along the side edge of the main body, and being positioned on the front side and the back side of the main body, respectively, a first part and a second part Consisting of a series of sheets folded to be divided into
The first portion of the sheet located on the front surface side of the main body is joined to the front surface side of the main body, and the almost entire second portion of the sheet located on the back surface side of the main body is on the back surface side of the main body. The side flap having an annular edge is formed by extending outward from the side edge of the main body,
The first portion in the width direction, which is located on the surface side of the main body and not joined to the surface side of the main body, is folded and joined to the inner surface side along a folding line extending in the longitudinal direction. The leak-proof flap having an annular edge is formed,
An elastic member for expanding and contracting each of the side portion and the leakage-proof flap is provided inside the annular edge portion, and extends in the length direction of the annular edge portion, and the top edge of each annular edge portion. From at least 1 mm apart and joined to each side edge and each base edge side of the leak-proof flap,
The urine absorbing pad, wherein the main body has both side edges and both end edges and corners at which the side edges and end edges intersect with each other, and the corner parts are formed as inclined edges . The urine collecting pad according to claim 1, wherein a maximum dimension of the separation of the elastic member is 20 mm . The urine collecting pad according to claim 1 or 2 , wherein fasteners are provided on the back surface of the main body along an edge thereof, and both end portions of the fastener are located at the corners of the main body .

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