Absorbent pad and absorbent pad package

Abstract

To provide a disposable absorbent pad dedicated for absorbent underwear capable of utilizing a water absorption part provided in absorbent underwear such as shorts for urinary incontinence effectively, and complementing an absorption amount of the water absorption part, which is not easily shifted, and can be easily put on and taken off, and to provide an absorbent pad package.SOLUTION: An absorbent pad 10 includes: a liquid permeable top sheet on a skin side; a liquid permeable back sheet positioned on a non-skin side of the top sheet; an absorber disposed between the top sheet and the back sheet; a film sheet 14 provided on a non-skin side surface of the back sheet; and a hook tape 15 provided on a non-skin side surface 14a of the film sheet 14. The film sheet 14 includes an open hole region 18 where a plurality of open holes 17 for permitting liquid permeation are formed, and the open hole region 18 of the film sheet 14 includes at least the center in a width direction of the film sheet 14, and extends in a longitudinal direction.SELECTED DRAWING: Figure 4

Description

[Technical field]

[0001] The present disclosure relates to absorbent pads, particularly for use with absorbent undergarments and the like. [Background technology]

[0002] Absorbent underwear such as incontinence shorts and sanitary shorts have been developed in which a water-absorbent member is attached to cloth underwear by sewing. These absorbent underwear can reduce discomfort when worn by absorbing small amounts of urine and menstrual blood and minimizing liquid return. The following techniques have been disclosed to achieve a more comfortable wearing experience.

[0003] Patent Document 1 discloses shorts for urinary incontinence. The shorts for urinary incontinence are composed of a shorts body and a pad for urinary incontinence. The shorts body is formed by appropriately cutting a fabric such as nylon into a predetermined shape and sewing them together, so that the shorts can be kept in a normal wearing state even when the pad for urinary incontinence absorbs urine. The pad for urinary incontinence includes a waterproof sheet having waterproof properties, a permeable sheet that allows the permeation of moisture from the front side to the back side and suppresses the seepage of moisture from the back side to the front side, and an absorbent water-retaining sheet that is stacked in multiple layers above and below and absorbs and retains urine. The waterproof sheet of the pad for urinary incontinence is sewn to the back side of the crotch part of the shorts body at its entire periphery. The permeable sheet of the pad for urinary incontinence is sewn to an absorbent water-retaining sheet consisting of an upper water-retaining sheet and a lower water-retaining sheet so as to surround the predetermined shape. The wearer's incontinent urine is concentrated in the absorbent water-retaining sheet through the permeable sheet of the urinary incontinence pad, where it is absorbed and retained, and over time gradually seeps out through the sewn parts surrounding the predetermined shape into the absorbent water-retaining sheet outside the predetermined shape. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2020-044206 A Summary of the Invention [Problem to be solved by the invention]

[0005] However, in the urinary incontinence shorts (absorbent underwear) described in Patent Document 1, the urinary incontinence pad (absorbent part) attached to the crotch part of the shorts body cannot absorb urine more than the absorption capacity of the urinary incontinence pad, so urine leakage occurs when the amount of urine is large. In order to supplement the amount of urine absorption, it is possible to wear a disposable incontinence pad on top of the urinary incontinence pad sewn to these urinary incontinence shorts (hereinafter referred to as the "shorts side incontinence pad"). However, the shorts side incontinence pad can only absorb urine that leaks from the disposable incontinence pad to the side, making it difficult to effectively use the shorts side incontinence pad. In addition, if urine leaks outside the disposable incontinence pad, the adhesive strength of the adhesive layer for preventing slippage provided on the back sheet of the disposable incontinence pad weakens, and the disposable incontinence pad may slip or come off from the shorts side incontinence pad. If the disposable incontinence pad slips or comes off from the shorts side incontinence pad, the fit is lost and urine leakage may occur.

[0006] Therefore, the present disclosure aims to provide a disposable absorbent pad and absorbent pad packaging body exclusively for absorbent underwear, which can effectively utilize the absorbent section provided in absorbent underwear such as urinary incontinence shorts while complementing the absorption capacity of the absorbent section, is less likely to slip, and is easy to put on and take off. [Means for solving the problem]

[0007] In order to solve the above problems, the absorbent pad of a first aspect of the present invention comprises a liquid-permeable top sheet on the skin side, a liquid-permeable back sheet located on the non-skin side of the top sheet, an absorbent body arranged between the top sheet and the back sheet, a film sheet provided on the non-skin side of the back sheet, and a hook tape provided on the non-skin side of the film sheet, wherein the film sheet has an aperture area in which a plurality of openings are formed to allow liquid to pass through, and the aperture area of ​​the film sheet includes at least the widthwise centre of the film sheet and extends in the longitudinal direction.

[0008] A second aspect of the present invention is an absorbent pad of the first aspect described above, wherein the aperture area of ​​the film sheet has a pair of first areas on both sides of the longitudinal direction and a second area between the pair of first areas, and the aperture diameter of the multiple openings in the aperture area of ​​the film sheet is larger in the pair of first areas than in the second area.

[0009] A third aspect of the present invention is an absorbent pad according to the first or second aspect, wherein the hook tapes are provided on both longitudinal sides of the outer end portions on both widthwise sides of the film sheet.

[0010] A fourth aspect of the present invention is the absorbent pad according to the first aspect or the second aspect, wherein the aperture diameter of the plurality of apertures of the film sheet is not less than 0.3 mm and not more than 1.8 mm.

[0011] A fifth aspect of the present invention is the absorbent pad according to the first aspect or the second aspect, wherein an area ratio of the plurality of apertures to the film sheet is 10% or more and 60% or less.

[0012] A sixth aspect of the present invention is the absorbent pad according to the first aspect or the second aspect, wherein the height of the plurality of apertures in the film sheet is not less than 0.2 mm and not more than 0.7 mm.

[0013] A seventh aspect of the present invention is an absorbent pad packaging body comprising a plurality of absorbent pads of the first aspect or the second aspect described above, stacked together and folded in thirds at two folds along the width direction with the top sheet on the inside, and a packaging bag for packaging the plurality of absorbent pads together. Effect of the Invention

[0014] According to the present disclosure, it is possible to provide a disposable absorbent pad and absorbent pad packaging body exclusively for absorbent underwear, which can effectively utilize the absorbent section provided in absorbent underwear such as urinary incontinence shorts while supplementing the absorption capacity of the absorbent section, is less likely to slip, and is easy to put on and take off. [Brief description of the drawings]

[0015] [Figure 1] 1 is an explanatory diagram showing a state in which an absorbent pad according to an embodiment of the present invention is used. [Diagram 2] 2 is an explanatory diagram showing the crotch portion of the absorbent undergarment of FIG. 1 as viewed from the skin side. FIG. [Diagram 3] 1 is a plan view of an absorbent pad according to an embodiment of the present invention, viewed from the skin side. [Figure 4] FIG. 4 is a plan view of the absorbent pad of FIG. 3, seen from the non-skin side. [Diagram 5] FIG. 4 is a cross-sectional view taken along the line VV in FIG. [Figure 6] FIG. 11 is a plan view showing a modified example of the absorbent pad as viewed from the non-skin side. [Figure 7] FIG. 11 is a plan view showing another modified example of the absorbent pad as viewed from the non-skin side. [Figure 8] 1 is an external perspective view of an absorbent pad packaging body according to an embodiment of the present invention; [Figure 9] FIG. 2 is a schematic diagram showing a state in which a plurality of absorbent pads are folded in three as viewed from the width direction. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0016] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An absorbent pad and an absorbent pad package according to an embodiment of the present invention will now be described with reference to the drawings.

[0017] In this specification, wearing an absorbent pad means a state in which the absorbent undergarment with the absorbent pad attached is worn on the body, regardless of whether the absorbent pad is attached before, during, or after the absorption of bodily fluids. In addition, the "front side" means the direction that is the ventral side of the wearer when the absorbent pad is worn, and the "rear side" means the direction that is the back side of the wearer. In addition, the left-right direction means the left-right direction as seen from the wearer facing forward. In addition, the longitudinal direction of each component of the absorbent pad means the direction along the front and back of the wearer when worn, and is the direction along the arrow X in the figure. In addition, the width direction of each component of the absorbent pad means the direction along the left and right of the wearer when worn, and is the direction along the arrow Y in the figure. In addition, the thickness direction of each component of the absorbent pad means the direction in which each component is layered, and is the direction along the arrow Z in the figure. In addition, the "skin side" means the direction toward the wearer's body when the absorbent pad is worn in the thickness direction, and the "non-skin side" means the direction opposite to the skin side in the thickness direction. Furthermore, bodily fluids refer to liquids discharged from the body to the outside, such as urine, blood, water in loose stools, etc. Furthermore, examples of absorbent pads include products for light incontinence and sanitary napkins, but are not limited to these and may be other absorbent pads.

[0018] [Absorbent underwear] Fig. 1 is an explanatory diagram showing an absorbent pad according to one embodiment of the present invention in use, Fig. 2 is an explanatory diagram showing the crotch portion of the absorbent undergarment in Fig. 1 as viewed from the skin side.

[0019] As shown in Figs. 1 and 2, an absorbent pad 10 according to the present disclosure is a disposable absorbent pad 10 designed specifically for absorbent underwear, attached to absorbent undergarments 1 such as incontinence shorts or sanitary shorts.

[0020] The absorbent undergarment 1 comprises an underwear body 2 that constitutes the outer shape of the underwear, and an absorbent water-absorbing member (water-absorbing section) 3 that is fixedly provided (for example, sewn) on the skin side of the crotch part (sometimes called the crotch) of the underwear body 2. The underwear body 2 is formed of fabric (for example, nylon, cotton, etc.), elastic member (rubber, etc.), etc. The water-absorbing member 3 may be, for example, a water-absorbing sheet mainly made of highly absorbent polymers, etc., disposed between a liquid-permeable sheet on the skin side and a liquid-impermeable sheet on the non-skin side. In other words, the absorbent undergarment 1 is an underwear that has a predetermined amount of water absorption due to the water-absorbing member 3. Note that the absorbent undergarment 1 may at least comprise the underwear body 2 that can be worn by a wearer, and the water-absorbing member (water-absorbing section) 3 that is fixedly provided on the crotch part of the underwear body 2. The shape of the absorbent undergarment 1 is not particularly limited, but examples include a shorts type and a boxer shorts type.

[0021] [Absorbent pad] Fig. 3 is a plan view of an absorbent pad according to one embodiment of the present invention, as viewed from the skin side. Fig. 4 is a plan view of the absorbent pad of Fig. 3, as viewed from the non-skin side. Fig. 5 is a cross-sectional view taken along the line VV in Fig. 3. Fig. 6 is a plan view showing a modified absorbent pad, as viewed from the non-skin side. Fig. 7 is a plan view showing another modified absorbent pad, as viewed from the non-skin side. Note that Fig. 5 omits the illustration of channel embossing. In the modified examples of Figs. 6 and 7, the same reference numerals as in this embodiment are used for the same members as in this embodiment.

[0022] The absorbent pad 10 is an article that is attached to the skin side of the water-absorbent member 3 of the absorbent undergarment 1 to absorb bodily fluids (see Figs. 1 and 2). That is, the absorbent pad 10 is used by overlapping the skin side of the water-absorbent member 3 of the absorbent undergarment 1 from the skin side, and complements the absorption capacity of the water-absorbent member 3.

[0023] 3 to 5, in this embodiment, an hourglass-shaped absorbent pad 10 will be described, but there is no particular limitation on the shape of the absorbent pad 10. For example, the absorbent pad 10 may be substantially rectangular as shown in FIG. 6, or may be oval or the like.

[0024] 3 to 5, the absorbent pad 10 comprises a liquid permeable top sheet 11, a liquid permeable back sheet 12, an absorbent body 13 disposed between the top sheet 11 and the back sheet 12, a film sheet 14 provided on the non-skin side of the back sheet 12, and a hook tape 15 provided on the non-skin side of the film sheet 14. Furthermore, the absorbent pad 10 may comprise left and right three-dimensional gathers 16 in addition to the top sheet 11 etc. as in this embodiment.

[0025] (Absorbent pad dimensions) The longitudinal dimension (longest dimension; the same applies below) L1 of the absorbent pad 10 is preferably 140 mm or more and 400 mm or less. The widthwise dimension W1 of the absorbent pad 10 is preferably 50 mm or more and 180 mm or less. By adjusting the dimensions of the absorbent pad 10 within the above ranges, it is possible to obtain an absorbent pad 10 suitable for light incontinence products and sanitary napkins.

[0026] (Top sheet) The top sheet 11 is a sheet that is positioned on the skin side when worn, and is formed from a liquid-permeable substrate that allows bodily fluids to move to the absorbent 13. Examples of substrates include nonwoven fabrics such as air-through nonwoven fabrics, thermal bond nonwoven fabrics, and spunbond nonwoven fabrics, and composite nonwoven fabrics in which thermal bond and spunbond are laminated. The top sheet 11 may be embossed or perforated on the surface in order to improve liquid permeability. As a method for carrying out such embossing or perforation, any known method may be used without limitation. In order to reduce irritation to the skin, the top sheet 11 may contain lotion, antioxidant, anti-inflammatory component, pH adjuster, antibacterial agent, moisturizer, etc.

[0027] (Back seat) The back sheet 12 is a sheet located on the non-skin side of the absorbent body 13 when worn, and is formed from a liquid-permeable substrate capable of transferring bodily fluids from the absorbent body 13 side to the non-skin side. That is, the back sheet 12 is located on the non-skin side of the top sheet 11. Examples of substrates for the back sheet 12 include nonwoven fabrics such as air-through nonwoven fabrics, thermal bond nonwoven fabrics, and spunbond nonwoven fabrics, and composite nonwoven fabrics in which thermal bond / spunbond are laminated. The back sheet 12 may be formed from the same substrate as the top sheet 11.

[0028] (Absorbent) As shown in Figures 3 and 5, the absorbent 13 is a portion capable of absorbing and retaining bodily fluids, and is disposed between the top sheet 11 and the back sheet 12. Examples of the absorbent 13 include a fluff absorbent containing absorbent fibers as a base material and a superabsorbent polymer (hereinafter sometimes referred to as "SAP") supported on the absorbent fibers, and an SAP sheet in which SAP particles are fixed between liquid-absorbent sheets. Among these, from the viewpoint of achieving a thinner shape, it is particularly preferable that the absorbent 13 is an SAP sheet in which SAP particles are fixed between two liquid-absorbent sheets that are fluffless hydrophilic nonwoven fabrics with a hot melt adhesive or the like.

[0029] Examples of hydrophilic nonwoven fabrics that form the liquid absorbent sheet include air-through nonwoven fabrics, point-bonded nonwoven fabrics, spunbonded nonwoven fabrics, meltblown nonwoven fabrics, and composite nonwoven fabrics such as spunbonded / meltblown and spunbonded / meltblown / spunbonded laminates. Air-through nonwoven fabrics are particularly preferred.

[0030] The superabsorbent polymer is not particularly limited as long as it can absorb body fluids and prevent backflow, and examples thereof include polyacrylates, polyaspartates, (starch-acrylic acid) graft copolymers, (acrylic acid-vinyl alcohol) copolymers, (isobutylene-maleic anhydride) copolymers, and saponification products thereof. Among these, from the viewpoint of absorption amount per weight, polyacrylates are preferred, polyacrylic acid alkali metal salts are more preferred, and polyacrylate sodium is even more preferred. The superabsorbent polymers can be used alone or in combination of two or more.

[0031] In this embodiment, the absorbent body 13 is an SAP sheet, but is not limited to this and may be, for example, a fluff absorbent body, a laminate of multiple SAP sheets, or a laminate of a fluff absorbent body and an SAP sheet.

[0032] (Cover sheet) The absorbent body 13 may have a cover sheet (not shown) that wraps the absorbent body 13 in order to prevent leakage of SAP particles from the absorbent body 13 and to stabilize the shape of the absorbent body 13. The base material of the cover sheet may be any material that has hydrophilic properties, and examples of such base materials include hydrophilic nonwoven fabrics such as tissue, absorbent paper, airlaid nonwoven fabric, and spunbond nonwoven fabric. Among these, spunbond nonwoven fabric is preferable. In addition, when a plurality of cover sheets are provided, the base materials of the plurality of cover sheets may be the same or different. In addition, an ADL layer may be provided between the top sheet 11 and the cover sheet to quickly capture and distribute body fluid from the cover sheet side to the absorbent body 13 side.

[0033] (3D gathers) The left and right three-dimensional gathers 16 are fixed to the skin side of the top sheet 11 along the longitudinal direction near both ends in the width direction of the absorbent pad 10 in order to prevent lateral leakage of bodily fluids excreted by the wearer. The three-dimensional gathers 16 include a water-repellent and / or waterproof sheet member 16a and an elastic stretchable member 16b.

[0034] The sheet member 16a is a water-repellent and / or waterproof sheet, and is made of, for example, a nonwoven fabric. As the nonwoven fabric for the sheet member 16a, any water-repellent and / or waterproof (liquid-impermeable) nonwoven fabric made of hydrophobic fibers can be used without any particular limitation, and examples thereof include spunbond nonwoven fabric, meltblown nonwoven fabric, and composite nonwoven fabric (SMS nonwoven fabric) which is a spunbond nonwoven fabric / meltblown nonwoven fabric / spunbond nonwoven fabric laminate. In this embodiment, the sheet member 16a has outer ends (fixed ends) in the width direction fixed to the vicinity of both ends in the width direction of the back sheet 12, a middle portion in the width direction fixed to the vicinity of both ends in the width direction of the top sheet 11, and an inner end in the width direction is a free end having uprightness.

[0035] The elastic stretchable member 16b is disposed in the longitudinal direction near the free end (the other end) of the sheet member 16a, imparting upstanding property to the free end and enabling the free end of the sheet member 16a and its neighboring area to be deformed to fit the wearer's body shape. As the elastic stretchable member 16b, for example, a thread-, string- or band-shaped member made of natural rubber, synthetic rubber, polyurethane or the like can be appropriately used.

[0036] (Film sheet) As shown in Figs. 4 and 5, the film sheet 14 is a sheet including a liquid-impermeable substrate (resin film) and is provided so as to cover the entire area of ​​the non-skin side surface 12a of the back sheet 12 from the non-skin side. The film sheet 14 is formed from a material such as a resin film or a composite sheet obtained by laminating a resin film and a nonwoven fabric. Examples of the resin film include films of polyester, polyvinyl alcohol, polyethylene, polypropylene, etc., and composite films of polyethylene and polypropylene. Among these, the film sheet 14 is preferably formed from a breathable polyethylene film. In addition, the nonwoven fabric in the case where the film sheet 14 is a composite sheet obtained by laminating a resin film and a nonwoven fabric is not particularly limited in the manufacturing method, and examples thereof include composite nonwoven fabrics obtained by laminating a plurality of the same and / or different nonwoven fabrics, such as spunbond nonwoven fabric, meltblown nonwoven fabric, spunbond nonwoven fabric / meltblown nonwoven fabric, spunbond nonwoven fabric / meltblown nonwoven fabric / spunbond nonwoven fabric, and composite materials thereof.

[0037] From the viewpoint of making it easy to distinguish the front and back of the absorbent pad 10, the film sheet 14 is preferably a color different from that of the top sheet 11, or a pattern or design is preferably printed on the film sheet 14. This makes the film sheet 14 stand out, so that the user can easily recognize the non-skin side of the absorbent pad 10 by visually checking the film sheet 14.

[0038] (Open pore area) 4 and 5, the film sheet 14 has an open area 18 (the area between two dashed two-dot lines A in FIG. 4) in which a plurality of openings 17 that allow liquid to permeate (pass through) are formed over the entire area. The open area 18 of the film sheet 14 is an area in which a plurality of openings 17 are formed in a predetermined pattern, and includes at least the center of the width of the film sheet 14 and extends in the longitudinal direction. The width dimension W2 of the open area 18 is not particularly limited, but is preferably 50% or more and 100% or less of the width dimension W1 of the absorbent pad 10.

[0039] In this embodiment, the film sheet 14 has an aperture region 18 located at the center in the width direction, and left and right non-aperture regions 19 (regions on the outer side in the width direction than two dashed double-dot lines A in FIG. 4) located on both sides of the aperture region 18 in the width direction. In the aperture region 18 of this embodiment, a plurality of apertures 17 having the same aperture diameter r are arranged at the same density. The left and right non-aperture regions 19 are regions in which no apertures 17 are formed and do not allow liquid to pass through, and are provided symmetrically at the outer end in the width direction of the film sheet 14 and extend in the longitudinal direction. The left and right non-aperture regions 19 preferably extend from one end to the other end in the longitudinal direction of the absorbent pad 10. In addition, when the left and right non-aperture regions 19 are provided, the width dimension W3 of the left and right non-aperture regions 19 is preferably 10% or more and 25% or less.

[0040] (opening diameter) The aperture diameter r of the plurality of apertures 17 is preferably 0.3 mm or more and 1.8 mm or less. If the aperture diameter r of the apertures 17 is less than 0.3 mm, bodily fluids are less likely to move from the absorbent pad 10 to the water-absorbent member 3 side of the absorbent undergarment 1. On the other hand, if the aperture diameter r of the apertures 17 exceeds 1.8 mm, the adhesive strength with the hook tape 15 described below decreases. The lower limit of the above range of the aperture diameter r of the apertures 17 is more preferably 0.5 mm. The upper limit of the above range of the aperture diameter r of the apertures 17 is more preferably 1.3 mm.

[0041] (Area ratio of open holes) The area ratio of the multiple openings 17 to the film sheet 14 (hereinafter, sometimes simply referred to as "area ratio of the openings 17") is preferably 10% or more and 60% or less. The area ratio of the openings 17 is calculated by the formula: ((sum of areas of the multiple openings 17) / (total area of ​​the film sheet 14)×100). If the area ratio of the openings 17 is less than 10%, bodily fluids tend to be less likely to move from the absorbent pad 10 to the water-absorbent member 3 of the absorbent undergarment 1. On the other hand, if the area ratio of the openings 17 exceeds 60%, when bodily fluids move from the absorbent pad 10 to the absorbent undergarment 1, they move to the water-absorbent member 3 of the absorbent undergarment 1 with insufficient diffusion in the XY plane, and therefore the performance of the water-absorbent member 3 may not be fully exhibited. The lower limit of the above range of the area ratio of the openings 17 is more preferably 20%. The upper limit of the above range of the area ratio of the openings 17 is more preferably 50%.

[0042] (Aperture height) The height of the multiple openings 17 is preferably 0.2 mm or more and 0.7 mm or less. The height of the openings 17 is synonymous with the thickness of the film sheet 14. If the height of the openings 17 is less than 0.2 mm, when bodily fluids move from the absorbent pad 10 to the absorbent undergarment 1, the bodily fluids move to the absorbent member 3 of the absorbent undergarment 1 without sufficient diffusion in the XY plane, and the performance of the absorbent member 3 may not be fully exhibited. On the other hand, if the height of the openings 17 exceeds 0.7 mm, the film sheet 14 becomes rigid and the wearing comfort is deteriorated. The lower limit of the above range of the height of the openings 17 is more preferably 0.3 mm. The upper limit of the above range of the height of the openings 17 is more preferably 0.6 mm.

[0043] In this embodiment, the film sheet 14 is provided with the left and right non-perforated regions 19, but the present invention is not limited to this. For example, as shown in Fig. 6, the film sheet 14 may have the entire perforated region 18 without providing the left and right non-perforated regions 19.

[0044] In the present embodiment, a plurality of apertures 17 having the same aperture diameter r are arranged in the aperture region 18 of the film sheet 14, but the present invention is not limited thereto. A plurality of apertures 17 may be arranged in the entire aperture region 18 in a form in which apertures 17 having various aperture diameters are mixed, or an area in which the aperture diameters of the apertures 17 are different may be provided in the aperture region 18. For example, as shown in FIG. 7, the aperture region 18 of the film sheet 14 may have a pair of first regions 18a on both sides in the longitudinal direction (areas outside the two two-dot chain lines B in FIG. 7 in the longitudinal direction) and a second region 18b between the pair of first regions 18a (area between the two two-dot chain lines B in FIG. 7). The aperture diameters r of the apertures 17 provided in the pair of first regions 18a and second regions 18b are different from each other. Specifically, a plurality of apertures 17a having a predetermined aperture diameter r1 are uniformly provided in the pair of first regions 18a, and a plurality of apertures 17b having an aperture diameter r2 smaller than the predetermined aperture diameter r1 are uniformly provided in the second region 18b. That is, the aperture diameter r of the plurality of apertures 17 in the aperture region 18 of the film sheet 14 is larger in the pair of first regions 18a than in the second region 18b.

[0045] (Hook Tape) 4 and 5, the hook tape 15 is a strip-shaped member having a plurality of hooks (not shown) and is provided on the non-skin side 14a of the film sheet 14, enabling the absorbent pad 10 to be attached to the skin side of the water-absorbent member 3 of the absorbent undergarment 1. In other words, the hook tape 15 is a tape that can be attached and detached to the skin side of the water-absorbent member 3 of the absorbent undergarment 1. As the hook tape 15, a tape that is generally used to fasten the waist of a tape-fastened diaper can be applied. There is no particular limitation on the size of the hook tape 15.

[0046] The hook tapes 15 are preferably provided on both longitudinal sides of the outer ends on both sides in the width direction of the film sheet 14. In this embodiment, a total of four hook tapes 15, two on each side, are provided on both longitudinal ends of the left and right non-perforated regions 19 of the film sheet 14. The hook tapes 15 are fixed to the non-skin side surface 14a of the film sheet 14. The multiple hook tapes 15 are preferably provided symmetrically in the width direction of the absorbent pad 10. Note that, in this embodiment, four hook tapes 15 are provided, but the present invention is not limited thereto. For example, a pair of hook tapes 15 may be provided on both width directions of the absorbent pad 10 and extending along the longitudinal direction.

[0047] (Channel embossing) As shown in Fig. 3, at least one pair of channel embossments 20 may be provided on the skin side of the absorbent pad 10. The pair of channel embossments 20 are disposed on both sides in the width direction of the absorbent pad 10, extend in the longitudinal direction, and are provided from the top sheet 11 to the absorbent body 13. The pair of channel embossments 20 have a shape in which the central portion in the longitudinal direction is convex toward the center in the width direction. Two or more pairs of channel embossments 20 may be provided.

[0048] [Absorbent pad packaging] Fig. 8 is an external perspective view of an absorbent pad package according to one embodiment of the present invention. Fig. 9 is a schematic diagram showing a state in which a plurality of absorbent pads are folded in three and viewed from the width direction. Fig. 8 also shows a schematic view of a plurality of absorbent pads 10 inside. Fig. 9 shows two absorbent pads 10 stacked on top of each other in a folded state, but the number of absorbent pads 10 packaged in the packaging bag 101 is not limited to two.

[0049] 8, an absorbent pad packaging body 100 according to one embodiment of the present invention includes a plurality of the above-mentioned absorbent pads 10 and a packaging bag 101 for collectively packaging the plurality of absorbent pads 10. The absorbent pad packaging body 100 of this embodiment has a substantially hexahedral shape in a state in which the plurality of absorbent pads 10 are packaged in the packaging bag 101.

[0050] (packaging bag) The packaging bag 101 is a bag-shaped member that packages a plurality of absorbent pads 10, and is made of a sheet-shaped member. The packaging bag 101 is not particularly limited, but is preferably made of a soft resin material such as PE (Polyethylene), PET (Polyethylene terephthalate), PP (Polypropylene), or PS (Polystyrene).

[0051] (multiple absorbent pads) As shown in Fig. 8, the absorbent pads 10 are folded in thirds and stored in a packaging bag 101. Note that, in Fig. 8, the absorbent pads 10 are stacked in the horizontal direction in the drawing in two layers, one above the other, but the stacking manner is not limited to this.

[0052] As shown in Fig. 9, the absorbent pads 10 in the packaging bag 101 are stacked on top of each other in a state where they are folded in thirds with the top sheet 11 on the inside at two folds a1 and a2 (see Fig. 3) along the width direction. Note that the folds a1 and a2 refer to the bent parts that are generated as a result of folding the absorbent pad 10, and are not limited to the parts that have been processed to make them easier to fold.

[0053] Next, a method of folding the absorbent pad 10 will be described. When folding the absorbent pad 10, first, one side in the longitudinal direction of the absorbent pad 10 (the lower side in FIG. 3) is folded back toward the other side (the upper side in FIG. 3) up to the front of the end of the other side so that the top sheet 11 is on the inside. In this state, the one side in the longitudinal direction of the absorbent pad 10 is folded back along one fold a1. Next, the other side in the longitudinal direction of the absorbent pad 10 is folded back toward the one side so as to overlap the part folded back in the previous step, so that the top sheet 11 is on the inside (the state shown in FIG. 9). In this state, the one side of the absorbent pad 10 is folded back along one fold a1, and the other side is folded back along the other fold a2. 9, the hook tape 15 on one side of the absorbent pad 10 folded in three faces the top sheet 11 or the three-dimensional gathers 16 on the other side and engages the top sheet 11 or the three-dimensional gathers 16. Also, as shown in Fig. 9, the hook tape 15 on the other side of the absorbent pad 10 folded in three is exposed toward the outside (upper side in Fig. 9) and faces and abuts against the non-skin side 14a of the film sheet 14 of another absorbent pad 10 layered on the absorbent pad 10.

[0054] The absorbent pad 10 configured as described above has a hook tape 15 on the non-skin facing side, so that it is less likely to slip when placed over the water-absorbent member 3 of the absorbent undergarment 1, and can be easily attached to and detached from the absorbent undergarment 1.

[0055] In addition, since the top sheet 11 is provided with an absorbent body 13 on the non-skin side, by using the absorbent pad 10 by overlapping it with the water-absorbing member 3 of the absorbent underwear 1, discharged body fluids can first be absorbed by the absorbent body 13 of the absorbent pad 10.

[0056] In addition, since the absorbent pad 10 is provided with a liquid-permeable back sheet 12, when the absorbent pad 10 is used overlapping the water-absorbent member 3 of the absorbent undergarment 1, when the absorbent body 13 of the absorbent pad 10 absorbs enough body fluids and reaches the upper limit of the absorption amount, the overflowing body fluids pass from the absorbent body 13 through the back sheet 12 and move to the film sheet 14 side. The film sheet 14 has an open area 18 in the center in the width direction, in which a plurality of openings 17 that allow the passage of liquids are formed, so that the body fluids that have passed through the liquid-permeable back sheet 12 pass through the openings 17 in the open area 18 of the film sheet 14 and move to the water-absorbent member 3 of the absorbent undergarment 1. In this way, the body fluids on the absorbent pad 10 side can pass through the openings 17 in the back sheet 12 and the film sheet 14 and move to the water-absorbent member 3 side of the absorbent undergarment 1, so that the absorption amount of the water-absorbent member 3 of the absorbent undergarment 1 is complemented by the absorption amount of the absorbent body 13, and the water-absorbent member 3 provided in the absorbent undergarment 1 can be effectively utilized.

[0057] Therefore, according to this embodiment, it is possible to provide a disposable absorbent pad 10 and absorbent pad packaging 100 exclusively for absorbent underwear, which can effectively utilize the absorbent member 3 provided in absorbent undergarments 1 such as urinary incontinence shorts while supplementing the absorption capacity of the absorbent member 3, and which is less likely to slip and is easy to put on and take off.

[0058] In addition, since the film sheet 14 is provided on the non-skin side of the absorbent pad 10, when the absorbent pad 10 is folded in thirds as described above, the hook tape 15 exposed on the outside of the absorbent pad 10 faces and abuts against the film sheet 14 of another absorbent pad 10 stacked on the absorbent pad 10. In other words, the multiple absorbent pads 10 stacked in a state folded in thirds are not locked to each other by the hook tape 15. Therefore, when one absorbent pad 10 is removed from the absorbent pad packaging 100, it is possible to prevent other absorbent pads 10 from being unintentionally removed together with the absorbent pad 10.

[0059] Furthermore, by providing left and right non-perforated regions 19 in film sheet 14, body fluids that have permeated back sheet 12 from absorbent pad 10 can be transported through apertures 17 in perforated regions 18 on the inner side in the width direction of film sheet 14 to the water-absorbent member 3 side of absorbent undergarment 1. In this way, when body fluids move from absorbent pad 10 to absorbent undergarment 1, the body fluids move from perforated regions 18 on the inner side in the width direction of film sheet 14 to absorbent undergarment 1 side, but do not move from left and right non-perforated regions 19 to absorbent undergarment 1 side, so that leakage of body fluids to the outside in the width direction of absorbent pad 10 (side leakage) can be suppressed.

[0060] Furthermore, by providing the hook tape 15 on the outer end portions on both sides of the film sheet 14 in the width direction, it is possible to prevent the hook tape 15 from restricting the movement of bodily fluids from the open area 18 on the inner side of the film sheet 14 in the width direction.

[0061] Furthermore, by providing the hook tape 15 on both longitudinal sides of the film sheet 14, the amount of hook tape 15 can be reduced while the absorbent pad 10 can be attached to the absorbent undergarment 1, unlike the case where a long hook tape is provided in the longitudinal direction.

[0062] 7, a pair of first regions 18a on both sides in the longitudinal direction and a second region 18b between the pair of first regions 18a are provided in the perforated region 18 of the film sheet 14, and the aperture diameter of the apertures 17 in the pair of first regions 18a is made larger than the aperture diameter of the apertures 17 in the second region 18b, thereby controlling the movement of bodily fluids toward the water-absorbent member 3 of the absorbent undergarment 1. Specifically, unlike the case where the aperture diameter of the apertures 17 in the perforated region 18 is made uniform, the amount of bodily fluids that move from the first regions 18a on both sides in the longitudinal direction of the perforated region 18 toward the absorbent undergarment 1 can be increased. This makes it possible to prevent bodily fluids from concentrating in the longitudinal center portion of the water-absorbent member 3 of the absorbent undergarment 1, and makes effective use of the regions on both sides in the longitudinal direction of the water-absorbent member 3 of the absorbent undergarment 1.

[0063] Furthermore, by providing at least one pair of channel embossments 20, the liquid diffusibility on the surface of the top sheet 11 and inside the absorbent body 13 is improved, thereby improving the absorption rate and suppressing deterioration in wearing comfort. Furthermore, by forming the longitudinal center portion of the pair of channel embossments 20 into a shape that is convex toward the widthwise center, it is possible to diffuse body fluids from the central portion of the absorbent pad 10, where body fluids tend to concentrate, to both sides in the longitudinal direction.

[0064] In the absorbent pad packaging 100 configured as described above, a plurality of absorbent pads 10 are stacked in a state where they are folded in three with the top sheet 11 on the inside. The hook tape 15 on one side of the absorbent pad 10 folded in three faces the top sheet 11 on the other side and locks the top sheet 11, so that the absorbent pad 10 can be maintained in a state where it is folded in three. As described above, the stacked absorbent pads 10 are not locked to each other by the hook tape 15, so that when one absorbent pad 10 is removed from the absorbent pad packaging 100, it is possible to prevent other absorbent pads 10 from being unintentionally removed together with the absorbent pad 10.

[0065] Although the present invention has been described based on the above embodiment, the present invention is not limited to the contents of the above embodiment, and can be modified as appropriate without departing from the scope of the present invention. In other words, all other embodiments, examples, and operational techniques made by those skilled in the art based on this embodiment are naturally included in the scope of the present invention. [Explanation of symbols]

[0066] 1:Absorbent underwear 3: Water-absorbing material (water-absorbing part) 10: Absorbent pad 11: Top sheet 12: Back seat 12a: Non-skin side of back sheet 13: Absorbent 14: Film sheet 14a: Non-skin side of film sheet 15: Hook tape 17: Open hole 18: Open hole area 18a:First area 18b:Second area 100: Absorbent pad packaging 101: Packaging bag

Claims

1. A liquid-permeable top sheet on the skin side; A liquid-permeable back sheet located on the non-skin side of the top sheet; an absorbent body disposed between the top sheet and the back sheet; A film sheet provided on the non-skin side of the back sheet; A hook tape is provided on the non-skin side of the film sheet, the film sheet has an aperture region in which a plurality of apertures that allow liquid to pass through are formed; The aperture region of the film sheet includes at least the center of the film sheet in the width direction and extends in the longitudinal direction. An absorbent pad characterized by:

2. The aperture region of the film sheet has a pair of first regions on both sides in a longitudinal direction and a second region between the pair of first regions, The aperture diameter of the plurality of apertures in the aperture region of the film sheet is larger in the pair of first regions than in the pair of second regions.

2. The absorbent pad according to claim 1.

3. The hook tapes are provided on both ends in the longitudinal direction of the outer ends of the film sheet in the width direction.

3. The absorbent pad according to claim 1 or 2.

4. The aperture diameter of the plurality of apertures in the film sheet is 0.3 mm or more and 1.8 mm or less.

3. The absorbent pad according to claim 1 or 2.

5. The area ratio of the plurality of apertures to the film sheet is 10% or more and 60% or less.

3. The absorbent pad according to claim 1 or 2.

6. The height of the plurality of apertures in the film sheet is 0.2 mm or more and 0.7 mm or less.

3. The absorbent pad according to claim 1 or 2.

7. a plurality of absorbent pads, each of which is the absorbent pad according to claim 1 or 2, folded in thirds at two folds along the width direction with the top sheet on the inside and stacked together; and a packaging bag for packaging the plurality of absorbent pads together. An absorbent pad package comprising:

Images