Disposable absorbent article and production method

Abstract

To provide a disposable absorbent article to which a flavoring agent can be added easily and which has excellent flavoring agent sustained release property.SOLUTION: There is provided a disposable absorbent article comprising: an absorbent element 50 which has an absorber 56 which is provided in a region including a crotch part M, and a packaging sheet 58 including the absorber 56, the absorbent element having a surface formed of the packaging sheet 58; and a liquid permeable top sheet 30 which is provided so as to cover a front side of the absorbent element 50. On a surface of the absorbent element 50, recess parts 51 are provided in a dispersed state with intervals, or in a state of being continuous in a lattice state. In each of the recess parts 51, illuvium 81 of skin care powder 80 is arranged, and a flavoring agent is included in the illuvium 81.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] This invention relates to disposable absorbent articles such as disposable diapers or sanitary napkins, and methods for manufacturing the same. [Background technology]

[0002] It is known that fragrances are added to disposable absorbent products such as disposable diapers to control odors during or after use, or to provide a pleasant scent before use.

[0003] In odor control, it is desirable for the effect to manifest after excretion. Examples of such products include those that release fragrance from microcapsules (see Patent Document 1) and those that release fragrance when urination is triggered (see Patent Document 2).

[0004] On the other hand, when the purpose is to provide fragrance before use, sustained release is important. Furthermore, when applied to absorbent articles, it is important that the basic performance such as absorption capacity and safety is not compromised, and that the product is simple in order to be manufactured inexpensively and easily. [Prior art documents] [Patent Documents]

[0005] [Patent Document 1] Special Publication No. 11-509455 [Patent Document 2] Japanese Patent Publication No. 2013-177424 [Overview of the project] [Problems that the invention aims to solve]

[0006] Therefore, the main objective of the present invention is to provide a disposable absorbent article that can be given fragrance by a simple method and has excellent sustained-release properties of the fragrance. [Means for solving the problem]

[0007] The following disposable absorbent articles solve the above problems. <First aspect> An absorbent element having an absorbent body provided in a region including the groin area, and packaging paper enclosing the absorbent body, the surface of which is made of the packaging paper, The system comprises a liquid-permeable top sheet provided to cover the front surface of the absorbent element, The surface of the absorbing element is provided with recesses in a pattern that is scattered at intervals or in a continuous grid pattern. The recess contains an aggregate of skincare powder, and the aggregate contains fragrance. A disposable absorbent article characterized by the following features.

[0008] (Effects and Benefits) In this disposable absorbent article, the absorbent element has an aggregate of skincare powder in a recess on its surface (made of packaging paper), and this aggregate contains fragrance. The skincare powder aggregate is a porous aggregate in which many particles are aggregated without a binder, and it has many gaps and a large surface area. Therefore, when fragrance is retained on the surface and in the gaps of the powder in such an aggregate, the release of the fragrance becomes gradual, and the aroma lasts longer. Furthermore, if the skincare powder aggregate is located on the flat surface of the absorbent element, external forces such as skin being pressed against the top sheet surface are easily applied to the aggregate, which may cause the aggregate to collapse and impair its sustained release properties. In contrast, when the aggregate is located in a recess, external forces are less likely to be applied to the aggregate in the recess, so the sustained release properties are less likely to be impaired. Also, many disposable absorbent articles are sold folded so that the top sheet is hidden inside, and the user unfolds the absorbent article to begin use. Therefore, when adopting this product sales format, by placing an aggregate of skincare powder on the surface of the absorbent element, the fragrance is more easily released through the top sheet upon initial use, while less likely to be released before initial use. Furthermore, the skincare powder does not hinder the movement of excretory fluid as it is absorbed into the absorbent material, nor does it adhere to the skin and cause problems.

[0009] <Second aspect> The amount of the skin care powder in the recess is 1 to 10 g / m 2 and the recess is recessed from the surface of the absorption element into the absorption body The disposable absorbent article of the first aspect.

[0010] (Function and effect) By having a sufficient amount of skin care powder in the recess, it becomes easier to maintain the accumulation state of the skin care powder, and the sustained release property is less likely to be impaired. Also, it is preferable that the recess is recessed from the surface of the absorption element into the absorption body because the recess is particularly difficult to collapse.

[0011] <Third aspect> The recess is formed by compressing the absorption element in the thickness direction so as to be recessed from the surface of the absorption element into the absorption body, the recess has a bottom surface and a slope with an upward gradient in a direction away from the edge of the bottom surface, the depth of the bottom surface of the recess is from 1 to 5 mm, the ratio of the bottom surface of the recess to the surface of the absorption element is from 5 to 25%, the ratio of the slope of the recess to the surface of the absorption element is from 9 to 45%, The disposable absorbent article of the first or second aspect.

[0012] (Function and effect) As in this aspect, when the recess is formed so as to be recessed into the absorption body and the depth, the ratio of the bottom surface, and the ratio of the slope of the recess are set, it is preferable because it is easy to create an accumulation state of the skin care powder and easy to maintain that state.

[0013] <Fourth aspect> The recess has a lattice pattern and is formed over the entire front-back direction and the entire width direction of the absorption element, the width of the bottom surface of the recess is from 1 to 10 mm, The dimensions of the unit frame formed by the recess are 10 to 25 mm in both the width direction and the front-to-back direction. A disposable absorbent article of a third nature.

[0014] (Effects and Benefits) When the recesses formed by compression in the thickness direction, extending from the surface of the absorbent element into the absorbent body, are formed in a lattice-like structure as in this embodiment, it is preferable, in particular, because it makes it easier for skincare powders to form and maintain an aggregated state.

[0015] <Fifth aspect> The aforementioned top sheet is a nonwoven fabric, The aforementioned recess is provided in an area that overlaps with the skin contact area that comes into contact with the wearer's skin. At least a portion of the skincare powder is not fixed to the surrounding components and is movable through the top sheet to the front side of the top sheet. The top sheet is bonded to the surface of the absorbent element via a hot melt adhesive, without the need for any other sheets. The adhesive surface between the top sheet and the absorbent element is bonded in a mesh-like pattern with scattered unbonded areas. The skincare powder is placed in the area that overlaps with the non-adhesive portion. A disposable absorbent article in any one of the four embodiments described in the first to fourth descriptions.

[0016] (Effects and Benefits) As in this embodiment, if the skincare powder can move to the surface side of the top sheet by passing through the interfiber gaps of the top sheet, it will adhere to the wearer's skin and exert a skincare effect. That is, when the skincare powder adheres to the skin, it will use capillary action to remove liquids on the skin surface, such as sweat, away from the wearer's skin, making the wearer's skin moderately dry (smooth). In this case, if another sheet is present between the top sheet and the surface of the absorbent element, the movement of the skincare powder toward the top sheet will be inhibited. Also, considering ease of manufacturing, it is desirable to bond the top sheet to the backing material with a hot melt adhesive, but this hot melt adhesive not only blocks the movement of the skincare powder toward the top sheet, but also fixes the skincare powder to the surrounding material during manufacturing. In contrast, as in this embodiment, where there is no other sheet between the top sheet and the surface of the absorbent element, and the top sheet and the absorbent element are bonded together in a mesh pattern, and the skincare powder is placed in the area overlapping with the unbonded portion, it is preferable because the movement of the skincare powder toward the top sheet is not hindered by the other sheet.

[0017] <Sixth aspect> The aforementioned top sheet has a fineness of 1-3 dtex and a basis weight of 10-25 g / m². 2 It is a spunbond nonwoven fabric with a thickness of 0.1 to 0.5 mm. The basis weight of the hot melt adhesive at the bonding surface between the top sheet and the absorbent element is 1-3 g / m². 2 That is, A disposable absorbent article of the fifth aspect.

[0018] (Effects and Benefits) Considering the permeability of the skincare powder mentioned above, the top sheet is preferably a relatively thin nonwoven fabric with sufficient interfiber spacing, as in this embodiment. Furthermore, in this case, it is preferable that the basis weight of the hot melt adhesive is within the range of this embodiment, as this reduces the feeling of stickiness from the hot melt adhesive when the skin touches the product surface.

[0019] <Seventh aspect> The aforementioned wrapping paper has a basis weight of 10-20 g / m². 2 It is crepe paper with a thickness of 0.05-0.2 mm and a crepe content of 10-30%. A disposable absorbent article in any one of the first to sixth embodiments.

[0020] (Effects and Benefits) Crepe paper has a high density, making it difficult for skincare powder to pass through. Furthermore, its surface has numerous fine crepes (crepe-like wrinkles), which helps retain the skincare powder on the absorbent material. Additionally, when creating recessed areas on the absorbent material through embossing, the packaging paper is less likely to tear.

[0021] <Eighth aspect> The 50% diameter of the aforementioned skincare powder is 10-30 μm. The basis weight of the skincare powder on the surface of the absorbent element is 0.2 to 2 g / m². 2 And, The skincare powder is present both inside and outside the recess. A disposable absorbent article in any one of the seven embodiments described in (1) through (7).

[0022] (Effects and Benefits) The particle size distribution and basis weight of the skincare powder are not particularly limited, but are preferably within the range of this embodiment. The 50% diameter (by volume) of the skincare powder is based on JIS Z 8825:2013 and is obtained by measuring the suspension of the skincare powder with a laser diffraction / scattering device.

[0023] <Ninth aspect> The aforementioned skincare powder consists solely of starch particles. A disposable absorbent article in any one of the eight embodiments described in (1) through (8).

[0024] (Effects and Benefits) Skincare powders may be mixtures of multiple powders, but those consisting solely of starch particles tend to aggregate easily, and the gaps between these aggregates are also minute, resulting in particularly excellent fragrance retention.

[0025] <Tenth aspect> An absorbent element having an absorbent body provided in a region including the groin area, and packaging paper enclosing the absorbent body, the surface of which is made of the packaging paper, A method for manufacturing an absorbent article comprising: a liquid-permeable top sheet provided to cover the front side of the absorbent element; A step of forming the absorbing element having recesses on its surface in a pattern that is scattered at intervals or a continuous grid pattern, The step of spraying a suspension mixture of fragrance, skincare powder, and water onto the surface of the absorbent element having the recess, before attaching the top sheet, By drying the surface of the absorbent element, the aggregate of the skincare powder and the fragrance contained therein remain in the recess. A method for manufacturing disposable absorbent articles, characterized by the following:

[0026] (Effects and Benefits) The aforementioned aggregate of skincare powders and disposable absorbent articles containing fragrances can be manufactured by this simple method. [Effects of the Invention]

[0027] According to the present invention, fragrances can be added using a simple method, and the fragrance exhibits excellent sustained release properties. [Brief explanation of the drawing]

[0028] [Figure 1] This is a plan view showing the inner surface of a pant-type disposable diaper in its unfolded state. [Figure 2] This is a plan view showing the outer surface of a pant-type disposable diaper in its unfolded state. [Figure 3] This is a cross-sectional view of section 2-2 in Figure 1. [Figure 4] This is a cross-sectional view of section 3-3 in Figure 1. [Figure 5] (a) A cross-sectional view of line 4-4 in Figure 1, and (b) a cross-sectional view of line 5-5 in Figure 1. [Figure 6] This is a perspective view of a pull-up type disposable diaper. [Figure 7] This is a plan view showing the outer surface of the interior unit in its deployed state, along with the outline of the exterior unit. [Figure 8] This is a plan view showing the surface of the absorbent material along with the outline of the packaging paper. [Figure 9] This is a cross-sectional view of the absorption element. [Figure 10] This is a plan view of the absorption element. [Figure 11] This is a magnified view of the main part of the surface of the absorption element. [Figure 12] This is a plan view showing another example of an absorber. [Figure 13] This is a cross-sectional view showing the absorbent element before it is wrapped in packaging paper. [Figure 14] This is a cross-sectional view showing the absorbent element after it has been wrapped in packaging paper, but before the compression portion is formed. [Figure 15] This is a plan view of the absorption element. [Figure 16] This is a photograph of the surface of the wrapping paper. [Modes for carrying out the invention]

[0029] The following describes a disposable absorbent article, specifically a pant-type disposable diaper, with reference to the attached drawings. Each adjacent component in the thickness direction is fixed or joined as necessary, in the same manner as known diapers, even in areas other than the fixing or joining portions described below. The dotted pattern in the cross-sectional view indicates adhesives such as hot-melt adhesives used as fixing or joining means. Hot-melt adhesives can be applied by known methods such as slot application, continuous linear or dotted bead application, spiral, Z-shaped, or wavy (regular or irregular) spray application, or pattern coating (transfer of hot-melt adhesive using a relief printing method). Alternatively, or in conjunction with these methods, hot-melt adhesive can be applied to the outer surface of the elastic component to fix it to the adjacent component. Examples of hot-melt adhesives include EVA-based, adhesive rubber-based (elastomer-based), polyolefin-based, and polyester / polyamide-based adhesives, but they are not particularly limited in their use. As fixing or joining means for joining each component, material welding methods such as heat sealing or ultrasonic sealing can also be used. In areas where liquid permeability in the thickness direction is required, adjacent components in the thickness direction are fixed or joined in an intermittent pattern. For example, when such intermittent fixing or joining is performed with hot melt adhesive, intermittent pattern coating such as spiral, Z-shaped, or wavy can be suitably used. When coating an area exceeding the coating width of a single nozzle, intermittent pattern coating such as spiral, Z-shaped, or wavy can be performed with or without gaps in the width direction. As a joining means for joining each component, material welding methods such as heat sealing or ultrasonic sealing can also be used.

[0030] Furthermore, in the following description, known nonwoven fabrics can be used as appropriate depending on the part and purpose. The constituent fibers of the nonwoven fabric can be selected without particular limitation, including, for example, polyolefin-based fibers such as polyethylene or polypropylene, polyester-based fibers, polyamide-based fibers, etc. (including single-component fibers as well as composite fibers such as core-sheath fibers), regenerated fibers such as rayon and cupro, and natural fibers such as cotton, and these can also be used in mixtures. To increase the flexibility of the nonwoven fabric, it is preferable to use crimped fibers as constituent fibers. In addition, the constituent fibers of the nonwoven fabric may be hydrophilic fibers (including fibers that have become hydrophilic due to a hydrophilizing agent), hydrophobic fibers, or water-repellent fibers (including fibers that have become water-repellent due to a water-repellent agent). Furthermore, nonwoven fabrics are generally classified according to the length of the fibers, the sheet formation method, the fiber bonding method, and the lamination structure into short fiber nonwoven fabrics, long fiber nonwoven fabrics, spunbond nonwoven fabrics, meltblown nonwoven fabrics, spunlace nonwoven fabrics, thermal bond (air-through) nonwoven fabrics, needle punch nonwoven fabrics, point bond nonwoven fabrics, and laminated nonwoven fabrics (including SMS nonwoven fabrics and SMMS nonwoven fabrics, etc., which have a meltblown layer sandwiched between spunbond layers), and any of these nonwoven fabrics can be used.

[0031] Figures 1 to 6 show an example of a pant-type disposable diaper. This pant-type disposable diaper comprises a rectangular front outer body 12F that forms the front waist area and a rectangular rear outer body 12B that forms the rear waist area, and an inner body 200 provided inside the outer bodies 12F and 12B so as to extend from the front outer body 12F through the crotch area M to the rear outer body 12B. The sides of the front outer body 12F and the sides of the rear outer body 12B are joined to form a side seal 12A, so that the openings formed by the front and rear ends of the outer bodies 12F and 12B become a waist opening WO through which the wearer's waist passes, and the parts enclosed by the lower edges of the outer bodies 12F and 12B and the side edges of the inner body 200 on both sides in the width direction become leg openings LO through which the legs pass. The inner body 200 is the part that absorbs and retains excrement such as urine, and the outer bodies 12F and 12B are the parts that support the inner body 200 against the wearer's body. Furthermore, the symbol Y represents the total length of the diaper in its unfolded state (the length in the front-to-back direction from the edge of the waist opening WO of the front panel F to the edge of the waist opening WO of the back panel B), and the symbol X represents the total width of the diaper in its unfolded state.

[0032] This pant-type disposable diaper has a waist area T defined as a front-to-back range with side seals 12A (a front-to-back range from the waist opening WO to the upper end of the leg opening LO), and an intermediate area L defined as a front-to-back range of the part that forms the leg opening LO (between the front-to-back range of the front body F with side seals 12A and the front-to-back range of the back body B with side seals 12A). The parts of the front outer body 12F and the back outer body 12B located in the waist area T, that is, the front waist area and the back waist area, can be conceptually divided into a "waist area" W that forms the edge of the waist opening and a "lower waist area" U which is the part below the waist area. Typically, if there are boundaries within the front and rear waist circumferences where the stretch stress in the width direction WD changes (for example, where the thickness or elongation rate of the elastic member changes), the waist portion W extends from the boundary closest to the waist opening WO. If there are no such boundaries, the waist extension portion 12E that extends beyond the absorbent body 56 or inner lining 200 toward the waist opening WO becomes the waist portion W. These lengths in the front-to-back direction vary depending on the size of the product and can be determined as appropriate. For example, the waist portion W can be 15-40 mm, and the lower waist portion U can be 65-120 mm. On the other hand, both side edges of the intermediate region L are constricted in a U-shape or curved shape to follow the circumference of the wearer's legs, and this is where the wearer's legs are inserted. As a result, the unfolded pant-type disposable diaper has an overall hourglass shape.

[0033] (Interior structure) The inner lining 200 can take any shape, but in the illustrated example it is rectangular. As shown in Figures 3 to 5, the inner lining 200 comprises a top sheet 30 that faces the body, a liquid-impermeable sheet 11, and an absorbent element 50 interposed between them, and is the main body responsible for the absorption function. Reference numeral 40 indicates an intermediate sheet (second sheet) provided between the top sheet 30 and the absorbent element 50 in order to quickly transfer liquid that has permeated the top sheet 30 to the absorbent element 50, and reference numeral 60 indicates riser gathers 60 that extend from both sides of the inner lining 200 to contact the wearer's legs in order to prevent excrement from leaking out on both sides of the inner lining 200.

[0034] (Top sheet) The top sheet 30, when unfolded, is exposed on the surface of the article and has a skin contact area that comes into contact with the wearer's skin. For example, in the illustrated example, the portion of the top sheet 30 that is covered by the rising gathers 60 when unfolded is not a skin contact area; rather, the area located between the rising gathers 60 is the skin contact area.

[0035] The top sheet 30 is permeable to liquids and can be made of, for example, a perforated or non-perforated nonwoven fabric or a perforated plastic sheet. The top sheet 30 may consist of a single sheet or a laminated sheet obtained by bonding two or more sheets together. Similarly, the top sheet 30 may consist of a single sheet or two or more sheets in the planar direction.

[0036] Both sides of the top sheet 30 may be folded back to the back at the side edges of the absorption element 50, or they may be left unfolded and protrude laterally beyond the side edges of the absorption element 50.

[0037] It is desirable to fix the top sheet 30 to the adjacent component on the back side using a joining method that involves material welding, such as heat sealing or ultrasonic sealing, or by hot melt adhesive, in order to prevent misalignment with the component on the back side. In the illustrated example, the top sheet 30 is fixed to the surface of the intermediate sheet 40 and the surface of the part of the packaging paper 58 that is located on the front side of the absorbent 56 by hot melt adhesive applied to its back surface.

[0038] (Intermediate sheet) To quickly transfer the liquid that has permeated through the top sheet 30 to the absorbent material, an intermediate sheet (also called a "second sheet") can be provided, which has a faster liquid permeation rate than the top sheet 30. This intermediate sheet is intended to quickly transfer the liquid to the absorbent material, enhance the absorption performance of the absorbent material, and prevent the "backflow" phenomenon of absorbed liquid from the absorbent material. The intermediate sheet can also be omitted.

[0039] Examples of intermediate sheets include materials similar to the top sheet 30, spunlace nonwoven fabric, spunbond nonwoven fabric, SMS nonwoven fabric, pulp nonwoven fabric, a pulp and rayon mixed sheet, point bond nonwoven fabric, or crepe paper. Air-through nonwoven fabric is particularly preferred due to its bulkiness. For air-through nonwoven fabric, it is preferable to use a core-sheath composite fiber, in which case the resin used for the core may be polypropylene (PP), but polyester (PET), which has high rigidity, is preferred. The basis weight is 17-80 g / m². 2 Preferably, 25-60 g / m 2 This is more preferable. The thickness of the raw fibers for the nonwoven fabric is preferably 2.0 to 10 dtex. In order to make the nonwoven fabric bulky, it is also preferable to use off-center fibers without a core in the center, hollow fibers, or off-center and hollow fibers as all or part of the mixed fibers of the raw fibers.

[0040] The intermediate sheet is shorter than the width of the absorbent body 56 and is positioned in the center, but it may extend across the entire width. The length of the intermediate sheet in the front-to-back direction may be the same as the total length of the diaper, the same as the length of the absorbent element 50, or it may be within a short length range centered on the area that receives liquid.

[0041] To prevent misalignment of the intermediate sheet relative to the component on the back side, it is desirable to fix it to the component adjacent to the back side using a joining method that involves material welding, such as heat sealing or ultrasonic sealing, or by using a hot melt adhesive. In the illustrated example, the intermediate sheet is fixed to the surface of the portion of the packaging paper 58 that is located on the front side of the absorbent 56 by a hot melt adhesive applied to its back side.

[0042] (Liquid-impermeable sheet) The material of the liquid-impermeable sheet 11 is not particularly limited, but examples include plastic films made of polyolefin resins such as polyethylene and polypropylene, laminated nonwoven fabrics with a plastic film on the surface of a nonwoven fabric, and laminated sheets made by layering and bonding a nonwoven fabric to a plastic film. It is preferable to use a material that is both liquid-impermeable and breathable for the liquid-impermeable sheet 11, as this is preferred from the viewpoint of preventing stuffiness. As a breathable plastic film, a microporous plastic film obtained by kneading an inorganic filler into a polyolefin resin such as polyethylene or polypropylene, forming a sheet, and then stretching it in a uniaxial or biaxial direction is widely used. In addition to the above, nonwoven fabrics using microdenier fibers, nonwoven fabrics whose leak-proof properties are enhanced by reducing the voids in the fibers through the application of heat or pressure, and sheets that are made impermeable to liquids without using plastic films, such as those coated with superabsorbent resins, hydrophobic resins, or water-repellent agents, can also be used as impermeable sheets 11. However, it is desirable to use a resin film in order to obtain sufficient adhesive strength when bonding with the cover nonwoven fabric 13, which will be described later, via a hot-melt adhesive.

[0043] The liquid-impermeable sheet 11 is designed to fit behind the absorbent element 50, as shown in the figure. In addition, to enhance leak prevention, it can be extended around both sides of the absorbent element 50 to the sides of the top sheet 30 of the absorbent element 50. The width of this extended portion should be approximately 5 to 20 mm on each side.

[0044] (Absorption element) The absorbent element 50 comprises an absorbent body 56 and a wrapping paper 58 that encloses the entire absorbent body 56.

[0045] (Absorbent) The absorbent material 56 is a mixture and aggregate of pulp fibers and superabsorbent polymer particles. The fiber basis weight is, for example, 100 to 450 g / m². 2 It can be considered to be of a certain degree.

[0046] Superabsorbent polymer particles include "powders" in addition to "particles". As superabsorbent polymer particles, those used in this type of disposable diaper can be used as they are. For example, it is desirable that the proportion of particles remaining on the sieve after sieving (shaking for 5 minutes) using a 500 μm standard sieve (JIS Z8801-1:2006) is 30% by weight or less, and it is also desirable that the proportion of particles remaining on the sieve after sieving (shaking for 5 minutes) using an 180 μm standard sieve (JIS Z8801-1:2006) is 60% by weight or more.

[0047] As the material of the superabsorbent polymer particles, it can be used without particular limitation, but those with a water absorption of 40 g / g or more are suitable. As superabsorbent polymer particles, there are those such as starch-based, cellulose-based, and synthetic polymer-based. For example, starch-acrylic acid (salt) graft copolymers, saponified products of starch-acrylonitrile copolymers, cross-linked products of sodium carboxymethyl cellulose, and acrylic acid (salt) polymers can be used. As the shape of the superabsorbent polymer particles, usually used powdery or granular ones are suitable, but other shapes can also be used.

[0048] As superabsorbent polymer particles, those with a water absorption rate of 70 seconds or less, particularly 40 seconds or less, are preferably used. If the water absorption rate is too slow, so-called reverse flow, where the liquid supplied into the absorber 56 flows back out of the absorber 56, is likely to occur.

[0049] Also, as superabsorbent polymer particles, those with a gel strength of 1000 Pa or more are preferably used. Thereby, even when a bulky absorber 56 is used, the stickiness after liquid absorption can be effectively suppressed.

[0050] The basis weight of the superabsorbent polymer particles can be appropriately determined according to the absorption amount required for the use of the absorber 56. Therefore, although it cannot be generally stated, it can be set to 50 - 350 g / m 2 If the basis weight of the polymer is less than 50 g / m 2 it becomes difficult to ensure the absorption amount. If it exceeds 350 g / m 2Beyond a certain point, the effect saturates.

[0051] The ratio of fibers to superabsorbent polymer particles in the absorbent material 56 is not particularly limited, but if the weight ratio of fibers to superabsorbent polymer particles is 50:50 to 20:80, a thinner absorbent material 56 can be made when comparing materials with the same area and absorption capacity. In this case, the thickness 56t of the absorbent material 56 is not particularly limited, but can be 3 to 15 mm.

[0052] The absorbent material 56 may be provided in the area including the crotch area M, but in typical products, it is preferable that it extends across both the front and rear sides of the crotch area M. In the case of a pant-type disposable diaper like the one in this example, it is preferable that the absorbent material 56 extends to the periphery of the inner lining 200 or its vicinity in the front-to-back direction LD and the width direction WD. Reference numeral 56X indicates the total width of the absorbent material 56.

[0053] To ensure sufficient absorption in the groin area M, the absorbent body 56 is preferably roughly rectangular in shape, as shown in the example in Figure 8. Furthermore, to improve the fit in the groin area M, as shown in the example in Figure 12(a), the width of the absorbent body 56 in the groin area M can be made narrower than its front and rear sides, creating a constricted shape. In this case, to ensure sufficient absorption in the groin area M, the width n1 of the narrowest part of the absorbent body 56 in the groin area M is preferably 0.85 times or more the total width 56X of the absorbent body 56.

[0054] The crotch area M refers to the area of ​​the front-to-rear LD having the constricted portion 56n, if the absorbent body 56 has the constricted portion 56n described later; if the absorbent body 56 does not have the constricted portion 56n but its outer shape in the deployed state has a constricted portion as shown in the illustrated example, it refers to the area of ​​the front-to-rear LD having this constricted portion (in the illustrated example, between the front outer body 12F and the rear outer body 12B); and if neither constricted portion exists, it refers to the part located in the center of the front-to-rear LD, where the dimension of the front-to-rear LD is 20-30% of the total length of the product. The parts extending forward and backward from the crotch area M become the front part and the rear part, respectively.

[0055] (Low-profile section) The absorbent material 56 may be continuous with almost the same thickness throughout and without irregularities, or it may have an elongated low-weight portion 56L extending in the front-to-back direction LD, as shown in the illustrated example. The low-weight portion 56L refers to a portion with less weight and does not include a portion where the weight does not change but is compressed in the thickness direction, such as the recess 51 described later. The low-weight portion 56L can also be a slit that penetrates in the thickness direction, but it is preferable to have a recess with a small accumulation of pulp fibers and superabsorbent polymer particles, as shown in the illustrated example, because it is easier to ensure the amount of absorption. This recess may be formed on the surface or the back surface of the absorbent material 56. By providing such a low-weight portion 56L in the absorbent material 56, the bending of the absorbent material 56 along the low-weight portion 56L is promoted, improving the fit of the absorbent element 50 in the crotch area M. The total basis weight of pulp fibers and superabsorbent polymer particles in the low basis weight section 56L should be less than the total basis weight of pulp fibers and superabsorbent polymer particles in the parts other than the low basis weight section 56L. For example, it can be 0.1 to 0.5 times the total basis weight of pulp fibers and superabsorbent polymer particles in the parts other than the low basis weight section 56L.

[0056] The low-weight portion 56L may extend linearly along the front-to-back direction LD, as long as it is elongated in the front-to-back direction LD, or it may be curved so as it is positioned laterally towards both sides of the front-to-back direction LD, as shown in the illustrated example. The front and rear ends of the low-weight portion 56L can be shaped as appropriate. For example, they may be straight as shown in the example in Figure 12(a), curved (e.g., semi-circular) as shown in the example in Figure 8, or, although not shown, the corners at both ends may be rounded and the middle section straight. The width m1 of the low-weight portion 56L can be determined as appropriate. For example, it can be 0.04 to 0.1 times the width n1 of the narrowest part of the crotch area M of the absorbent body 56 (meaning the total width 56X in the case of a rectangle). The width m1 of the low-weight portion 56L may be constant in its length direction or may vary. The dimensions and arrangement of the low-weight portion 56L in the front-to-back direction LD can be determined as appropriate. For example, the dimension m2 of the front-to-back LD of the low-weight portion 56L can be 50-120%, more preferably 50-80%, of the dimension of the front-to-back LD of the crotch portion M. Furthermore, even if the low-weight portion 56L is contained within the range of the crotch portion M, it may extend to the front, back, or both front and back sides of the crotch portion M.

[0057] The low-profile sections 56L can be provided in various ways, such as in the examples shown in Figures 8 and 12(a), with one on each side of the width direction WD in the crotch area M and one in the center of the width direction WD, or in the example shown in Figure 12(b), with only one on each side of the width direction WD in the crotch area M, or, although not shown, with only one in the center of the width direction WD in the crotch area M.

[0058] (recess) The surface of the absorption element 50 is provided with recesses 51 in the form of a continuous grid pattern as shown in Figures 3, 4, 9 to 11, or in the form of a scattered pattern with gaps between them as shown in Figure 15.

[0059] The recess 51 is preferably located in a position that overlaps with the skin contact area. In this case, it can be formed over the entire front-to-back LD and width WD of the absorbing element 50, as in the example shown in Figure 10, or it can be provided only in a part of the area, such as on both the front and rear sides or just one side of the crotch area M, as in the example shown in Figure 15.

[0060] The shape and dimensions of the recess 51 can be determined as appropriate, but from the viewpoint of making it easier to create and maintain the accumulation state of the skincare powder 80 described later, it is preferable that the recess 51 has a bottom surface 51d and an inclined surface 51s that slopes upward in the direction away from the edge of the bottom surface 51d, as shown in Figure 9. It is preferable that the inclined surface 51s gradually becomes gentler as it moves away from the edge of the bottom surface 51d, as shown in the illustrated example, but the inclination may also be constant. The depth 51h of the recess 51 is preferably 1 to 5 mm, and particularly preferably 2 to 5 mm. Furthermore, the ratio of the bottom surface of the recess 51 to the surface of the absorbent element 50 is preferably 5 to 25%, and the ratio of the inclined surface 51s of the recess 51 to the surface of the absorbent element 50 is preferably 9 to 45%. The dimensions of the narrowest part of the recess 51 are preferably 1 to 10 mm, and particularly preferably 1 to 5 mm. When the recesses 51 are formed in a pattern of scattered recesses, the area of ​​the bottom surface of the recesses 51 can be determined as appropriate, for example, 5 to 15 mm. 2 This can be done. The shape of the bottom surface of the recess 51 can be one or more types selected from appropriate shapes such as circles, ellipses, polygons, rectangles, and rounded rectangles (two parallel lines of equal length and two semicircles). Patterns in which the recesses 51 are scattered at intervals include not only regular patterns such as staggered or matrix patterns, but also irregular patterns such as grid patterns (see Figure 15).

[0061] Preferably, the recess 51 extends from the surface of the absorbent element 50 into the absorbent body 56, but it may also be provided only in the packaging paper 58 without forming a recess in the absorbent body 56. The recess 51 extending from the surface of the absorbent element 50 into the absorbent body 56 can be formed by compressing the absorbent element in the thickness direction, for example, using embossing with or without heating. In particular, it is preferable to provide the recess 51 in a continuous grid pattern by such processing, and to set the width direction WD dimension 51x of the unit frame 51f consisting of the recess 51 to about 10 to 25 mm, and the front-to-back direction LD dimension 51y of the unit frame 51f to about 10 to 25 mm, as this makes it easier for the skincare powder to form and maintain an aggregated state. In this case, the pulp fibers and superabsorbent polymer particles constituting the absorbent body 56 are constrained within the unit frame 51f consisting of the recess 51 (see Figure 11), so that the absorbent body 56 does not wrinkle or crack. In particular, when the aforementioned low-weight portion 56L is present, the portion of the absorber 56 located to the side of the low-weight portion 56L is prone to warping and cracking. However, if the recesses 51 are provided in a continuous grid pattern over at least the entire region SR (see Figure 8) to the side of the low-weight portion 56L, this can be effectively suppressed.

[0062] When recesses 51 are provided in a grid pattern, the width 51w of the groove-shaped recesses 51 (the width of the bottom of the recess formed in the absorption element 50) can be determined as appropriate, but is usually about 1 to 10 mm, particularly preferably 1 to 5 mm, and more preferably 1 to 3 mm.

[0063] When the recess 51 is formed by compression, the thickness 51t of the recess 51 can be determined as appropriate, but it is generally preferable that it be 15 to 35% of the maximum thickness 50t of the absorption element 50.

[0064] The shape of the unit frame 51f is not particularly limited, and in addition to a roughly square as shown in the illustrated example, it may also be a roughly rhombic (excluding squares), a roughly rectangular, roughly square, roughly triangular, or other polygonal shape. Furthermore, as long as the recesses 51 are arranged in a grid pattern, it may include unit frames 51f of different shapes.

[0065] One preferred pattern for the grid-like recesses 51 is a diagonal grid pattern consisting of a first portion 51a extending in a direction inclined 40 to 50° clockwise with respect to the front-rear direction LD in a plan view, and a second portion 51b extending in a direction inclined 40 to 50° counterclockwise with respect to the front-rear direction LD in a plan view, as shown in the example in Figures 10 and 11. In this case, the shape of the unit frame 51f is approximately rhombic.

[0066] The dimensions of the unit frame 51f can be determined as appropriate, but it is preferable that there are three or more rows of unit frame 51L in the width direction WD in which complete unit frames 51f are repeated in the front-rear direction LD. In particular, when a low-weight portion 56L is provided, it is preferable that the dimensions of the unit frame 51f are such that there are two or more rows of unit frame 51L in the width direction WD in which complete unit frames 51f are repeated in the front-rear direction LD in at least a part to the side of the low-weight portion 56L. This results in excellent fit and shape retention of the absorption element 50 in the portion to the side of the low-weight portion 56L.

[0067] (wrapping paper) While not specifically limited to wrapping paper 58, it typically has a basis weight of 10-20 g / m². 2 Crepe paper with a thickness of approximately 0.05 to 0.2 mm can be suitably used.

[0068] The packaging structure of the packaging paper 58 can be determined as appropriate, but from the viewpoint of ease of manufacturing and preventing leakage of highly absorbent polymer particles from the front and rear edges, it is preferable to wrap it in a cylindrical shape so as to surround the front and back surfaces and both sides of the absorbent 56, with its front and rear edges protruding from the front and rear of the absorbent 56, and to join the overlapping portions of the wrapped paper and the protruding portions using joining means such as hot melt adhesive or material welding.

[0069] The shape retention of the absorbent element 50 due to the lattice-shaped recesses 51 formed by compression depends on the shape retention of the recesses 51 themselves, and the shape retention of the recesses 51 themselves depends on the bonding strength between the packaging paper 58 and the absorbent 56 in the recesses 51 and the shape retention of the absorbent 56 itself. When the packaging paper 58 and the absorbent 56 are bonded together using hot melt adhesives HM1 and HM2 (see Figures 13 and 14), more hot melt adhesives HM1 and HM2 than usual are required to sufficiently maintain the bonding strength between the packaging paper 58 and the absorbent 56 and the shape retention of the absorbent 56 itself, due to the increase in surface area caused by the formation of the recesses 51. Therefore, the bonding strength between at least the side of the absorbent 56 with the recesses 51 and the inner surface of the packaging paper 58 should be 5.0 to 20.0 g / m². 2 Especially 7.5~15.0 g / m 2 It is preferable that they are bonded via hot melt adhesives HM1 and HM2.

[0070] For example, as shown in the illustrated example, when a depression 51 is formed on the surface of the absorbent 56, the above-mentioned amount of hot melt adhesive HM can be achieved by providing two layers of hot melt adhesive HM1 and HM2 on both sides of the surface of the absorbent 56 in the width direction WD, with a width that includes at least the entire region SR to the side of the low basis weight portion 56L. In such a structure, as shown in Figure 13, the first hot melt adhesive HM1 is applied to the inner surface of the unfolded packaging paper 58 over almost the entire surface facing the absorbent 56, and then the absorbent 56 with a pre-formed low basis weight portion 56L is placed in the middle of the width direction WD of the first hot melt adhesive HM1 on the packaging paper 58 to bond the back surface of the absorbent 56 to the packaging paper 58 via the first hot melt adhesive HM1, and then the second hot melt adhesive HM2 is applied over almost the entire surface of the absorbent 56, as shown in Figure 14. As shown, the portion of the packaging paper 58 that extends beyond the absorbent material 56 on both sides is folded back onto the surface of the absorbent material 56, and the surface of the absorbent material 56 and the folded portion of the packaging paper 58 are bonded together via the first hot melt adhesive HM1 and the second hot melt adhesive HM2, while the overlapping portion of the packaging paper 58 is bonded together via the first hot melt adhesive HM1. After that, as shown in Figure 9 (hot melt adhesives HM1 and HM2 are not shown), a recess 51 is formed by embossing.

[0071] (A collection of skincare powders) As shown in Figures 3, 4, and 9, an aggregate 81 of skincare powder 80 is contained within the recess 51 on the surface of the absorbent element 50, and this aggregate 81 contains fragrance. For clarity, the skincare powder in the figures is exaggerated and shown in a large size. The skincare powder aggregate 81 is a porous aggregate formed by the aggregation of numerous skincare powders 80 without a binder, and has many gaps and a large surface area. Therefore, if fragrance is retained on the powder surface and in the gaps within such an aggregate 81, the release of the fragrance will be slowed down, and the aroma will last longer. Furthermore, if the skincare powder aggregate 81 is located on the flat surface of the absorbent element 50, external forces such as skin being pressed against the surface of the top sheet 30 are easily applied to the aggregate 81, and in such cases, the aggregate 81 may collapse, impairing its sustained release properties. In contrast, if the aggregate 81 is placed within the recess 51, external force is less likely to be applied to the aggregate 81 within the recess 51, thus the sustained release property is less likely to be impaired. Also, many disposable diapers are sold folded so that the top sheet 30 is hidden inside, and users unfold the disposable diaper to begin use. Therefore, when adopting this product sales format, by placing the aggregate 81 of skincare powder 80 on the surface of the absorbent element 50, the fragrance is more easily released through the top sheet 30 when use begins, and less likely to be released before use begins. Furthermore, the skincare powder 80 does not hinder the movement of excretory fluid when it is absorbed into the absorbent body 56, nor does it adhere to the skin and cause problems.

[0072] Any known powder can be used as the skincare powder 80, such as baby powder, body powder, or face powder. The composition of the skincare powder 80 is not particularly limited, but it is preferable to include 80% by weight or more of one or more powder components selected from, for example, talc, starch (potato starch, corn starch, sweet potato starch, tapioca starch, sago starch, rice starch, amaranth starch, etc., but corn starch is particularly preferred), kaolin, calcium carbonate, magnesium carbonate, titanium dioxide, magnesium stearate, bentonite, and silica. In particular, it is preferable for the skincare powder to consist only of single particles that are nearly spherical and of almost the same size, such as starch particles, as this makes it easier to aggregate and the gaps in the aggregate 81 become minute, resulting in excellent fragrance retention. When using multiple types of powder components, it is preferable to include approximately 80-96% by weight of talc and approximately 1-10% by weight of corn starch as the powder components. Furthermore, it is preferable that some or all of the skincare powder 80 consists of porous particles such as porous starch particles.

[0073] The 50th percentile diameter (median diameter) of skincare powder 80 is preferably 10 to 30 μm, and more preferably 15 to 20 μm. The 50th percentile diameter (volume basis) of skincare powder 80 is based on JIS Z 8825:2013 and is obtained by measuring the suspension of skincare powder 80 with a laser diffraction / scattering device (for example, a laser diffraction particle size distribution analyzer SALD-200V ER manufactured by Shimadzu Corporation). The 10th percentile diameter (volume basis) of skincare powder 80 is preferably 5 to 10 μm. The 90th percentile diameter (volume basis) of skincare powder 80 is preferably 60 to 80 μm.

[0074] The fragrance contained in the aggregate 81 of the skincare powder 80 may be either a natural fragrance or a synthetic fragrance, but it is preferable to use a liquid fragrance that is formulated to have a masking effect on the odor of excrement (an effect that counteracts or overcomes the odor, making it less noticeable) and especially a harmonizing effect (an effect that harmonizes with the odor, making it less unpleasant). Specific examples of fragrances include natural extracts such as agave, benzoin, sea urchin, clove oil, galbanum, jasmine absolute, labtanum, mate tea, melilot, mimosa, musk tonkin, myrrh, oakmoss or moss de chaine, frankincense, angelica tree, orris, patchouli, rosemary oil, sandalwood oil, vetiver oil, and violet leaf absolute; various synthetic fragrances such as higher alcohols, aldehydes, benzaldehyde, benzoic acid, cinnamic acid, cinnamaldehyde, cinnamic alcohol, coumarin, esters, indole, ketones, salicylic acid and related compounds, terpenoids, vanillin, or mixtures of two or more of these, but are not limited to these. Commercially available fragrances can be widely used. It is preferable to use fragrances that are highly volatile.

[0075] Furthermore, the aggregate 81 of the skincare powder 80 may contain, as trace elements, one or more components selected from oily moisturizers and powder scattering inhibitors such as olive oil, squalane, lanolin derivatives, and medium-chain triglyceride (MCT); astringents such as aluminum chlorohydrate powder and zinc oxide powder; preservatives such as parahydroxybenzoic acid esters; bactericides such as benzalkonium chloride, benzethonium chloride, and isopropylmethylphenol; aqueous moisturizing components such as plant extracts; deodorizing components such as green tea extract; anti-inflammatory agents such as glycyrrhizinate and allantoin; and various dyes.

[0076] This disposable diaper can be manufactured by forming an absorbent element 50 having a recess 51, and before covering the front side of the absorbent element 50 with another material (top sheet 30 in the illustrated example), spraying a suspension of fragrance, skincare powder 80, and water onto the surface of the absorbent element 50 by spraying or the like, and then drying the surface of the absorbent element 50 (absorbed and evaporated by the absorbent material 56). In other words, a large amount of the suspension sprayed onto the surface of the absorbent element 50 is supplied into the recess 51, and the suspension that adheres to the outside of the recess 51 flows down into the recess 51. As a result, a large amount of suspension is supplied into the recess 51, and after drying, the skincare powder 80 aggregate 81 and the fragrance contained therein remain in the recess 51. Figure 16 is a photograph of the surface of a packaging paper 58 having a recess 51 manufactured by this method, where the white area is the skincare powder 80 and its aggregate, and the black area is the packaging paper.

[0077] The skincare powder 80 may be present throughout the width direction WD of the absorbent element 50, or it may be present only in the middle portion excluding both ends of the width direction WD, as shown by the dashed lines in Figures 10 and 15. The skincare powder 80 may be present throughout the front-to-back direction LD of the absorbent element 50, as shown by the dashed lines in Figure 10, or it may be present only in a part of the region, such as on both the front and back sides or one side of the groin area M, as shown by the dashed lines in Figure 15.

[0078] The skincare powder 80 and its aggregates 81 may be present almost entirely within the recesses 51 on the surface of the absorbent element 50, but for ease of manufacture, they may be present both inside and outside the recesses 51. Furthermore, it is preferable that the skincare powder aggregates 81 are distributed over almost all (e.g., 80% or more of the area) of the recesses 51 located in the skincare powder 80 attachment area, but they may be distributed only in part. If the recesses 51 have a certain area and length, a single recess 51 having skincare powder aggregates 81 may have the skincare powder aggregates 80 distributed in layers throughout its entirety, or there may be parts where the skincare powder 80 is not present (i.e., the aggregates may be present in a patchy or intermittent manner). In particular, it is preferable that the skincare powder aggregates 81 are formed at least in the corners of the recesses 51, as this makes it easier to maintain the aggregated state of the skincare powder 80.

[0079] The amount of skincare powder 80 used can be determined as appropriate, but typically the basis weight of skincare powder 80 on the surface of the absorption element 50 is 0.2 to 2 g / m². 2 Degree, especially 0.2-1 g / m 2 It is preferable that the amount is within a certain range. Also, the amount of skincare powder 80 in the recess 51 is 1 to 10 g / m². 2 Degree, especially 1-5 g / m 2 It is preferable that the amount is within a certain range. Having a sufficient amount of skincare powder 80 in the recess 51 makes it easier to maintain the aggregated state of the skincare powder 80, and the sustained release properties are less likely to be impaired.

[0080] If the skincare powder 80 can pass through the fiber gaps of the top sheet 30 and move to the front surface of the top sheet 30, it will adhere to the wearer's skin and exert a skincare effect. That is, when the skincare powder 80 adheres to the skin, it will use capillary action to remove liquids on the skin surface, such as sweat, away from the wearer's skin, making the wearer's skin moderately dry (smooth). In this case, if another sheet is present between the top sheet 30 and the surface of the absorbent element 50, the movement of the skincare powder 80 into the top sheet 30 will be inhibited. Also, considering ease of manufacturing, it is desirable to bond the top sheet 30 to the back side material with a hot melt adhesive HM, but this hot melt adhesive HM not only blocks the movement of the skincare powder 80 into the top sheet 30, but also fixes the skincare powder 80 to the surrounding material during manufacturing. Therefore, as shown in the illustrated example, it is preferable not to interpose another sheet between the top sheet 30 and the surface of the absorbent element 50. Furthermore, it is preferable that the adhesive surface between the top sheet 30 and the absorbent element 50 is bonded in a mesh pattern with scattered non-adhesive areas, and that the skincare powder 80 is contained in at least the area where the recess 51 and the non-adhesive areas overlap, so that the movement of the skincare powder 80 into the top sheet 30 is not hindered by other sheets.

[0081] As a mesh pattern with scattered non-adherent areas, known regular or irregular patterns such as spiral patterns can be used. Adhesion of such mesh patterns can be performed using, for example, Nordson's CF nozzle or Summit nozzle (spiral pattern), Signature spray nozzle (irregular fibrous pattern), or Suntool's ZIP nozzle (Z-shaped pattern), spiral nozzle (spiral pattern), etc.

[0082] Considering the retention and permeability of the aforementioned skincare powder 80, the top sheet 30 is preferably a relatively thin nonwoven fabric with sufficient interfiber spacing, for example, with a fineness of 1-3 dtex and a basis weight of 10-25 g / m². 2A spunbond nonwoven fabric with a thickness of 0.1 to 0.5 mm can be suitably used. In this case, if the basis weight of the hot melt adhesive HM is too high, the stickiness of the hot melt adhesive HM will be easily felt when the skin touches the surface of the product. Therefore, the basis weight of the hot melt adhesive HM at the bonding surface between the top sheet 30 and the absorbent element 50 should be 1 to 3 g / m². 2 It is preferable that the nonwoven fabric used for the top sheet 30 is a point-bonded nonwoven fabric in which heat-sealed portions are scattered at intervals, because this stabilizes the density of the fibers and stabilizes the retention and permeability of the skincare powder 80.

[0083] Since the surface of the absorbent element 50 is formed by the packaging paper 58, it is preferable to use packaging paper 58 that is impermeable to the skincare powder 80 and has excellent retention properties for the skincare powder 80. Such packaging paper 58 has a basis weight of 10-20 g / m². 2 Examples of crepe paper include those with a thickness of approximately 0.05 to 0.2 mm and a crepe ratio of approximately 10 to 30%. Crepe paper has a high density and is not only impermeable to skincare powder 80, but also has the advantage of having many fine crepes (crepe-like wrinkles) on its surface, which makes it easier for skincare powder 80 to be retained on the absorbent element 50. Preferably, the crepes are dry crepes that are produced when a dry fiber web is peeled off from a Yankee dryer or the like in the dryer part using a doctor's knife or the like. The crepe ratio of the crepe paper is not particularly limited, but it is preferably 20 to 25% from the viewpoint of preventing the penetration of skincare powder 80. The crepe ratio can be calculated by ((peripheral speed of the dryer during papermaking) - (peripheral speed of the reel)) / (peripheral speed of the dryer during papermaking) × 100.

[0084] (Rising Gather) The rise-up gather 60 has a rise-up portion 68 that rises from the side of the inner lining 200, and this rise-up portion 68 contacts the wearer's groin, legs, and buttocks to prevent leakage from the sides. In the illustrated example, the rise-up gather 60 has the base portion 60B rising diagonally toward the center in the width direction, and the tip portion 60A rising diagonally toward the outside in the width direction from the middle portion, but it is not limited to this, and can be modified as appropriate, such as having the entire garment rising toward the center in the width direction.

[0085] More specifically, the rise-up gather 60 in the illustrated example is made by folding a strip-shaped gather sheet 62, which has a length equal to the front-to-back length of the interior body 200, in the width direction WD at the tip and overlapping it in two. Multiple elongated gather elastic members 63 are fixed between the folded portion and the sheet in the vicinity therein, extended along the longitudinal direction and spaced apart in the width direction WD. The base end of the rise-up gather 60, located opposite the tip (the end opposite the folded portion of the sheet in the width direction WD), is a root portion 65 fixed to the side of the interior body 200, and the portion other than this root portion 65 is a main body portion 66 (the portion on the folded portion side) extending from the root portion 65. The main body portion 66 has a root side portion 60B that extends towards the center in the width direction, and a tip side portion 60A that is folded back at the tip of the root side portion 60B and extends outward in the width direction. Furthermore, while both ends of the main body portion 66 in the front-rear direction are fixed to the side surface of the top sheet 30 in a collapsed state as collapsed portions 67, the middle portion in the front-rear direction located between these is an unfixed upright portion 68, and a gathered elastic member 63 is fixed in an extended state to at least the tip of this upright portion 68 along the front-rear direction LD.

[0086] In the rise-up gather 60 configured as described above, the rise-up portion 68 rises up so as to come into contact with the skin, as indicated by the arrows in Figure 3, due to the contraction force of the gather elastic member 63. In particular, if the base portion 65 is located on the back side of the inner body 200, the rise-up portion 68 stands up so as to open outward in the width direction in the crotch area and its vicinity, so that the rise-up gather 60 comes into contact with the legs over a wider surface, improving the fit. The base portion 65 can also be fixed to the front side of the inner body 200, for example, to the surfaces on both sides of the top sheet 30.

[0087] In a bending structure like the lifting gather 60 in the illustrated example, where the main body portion 66 consists of a base portion 60B extending towards the center in the width direction and a tip portion 60A that is folded back at the tip of the base portion 60B and extends outward in the width direction, the tip portion 60A and the base portion 60B are joined in a collapsed state at the collapsed portion 67, and the base portion 60B is joined to the top sheet 30 in a collapsed state. For joining the opposing surfaces at the collapsed portion 67, at least one of hot melt adhesives applied by various methods and material welding means such as heat sealing or ultrasonic sealing can be used. In this case, the joining of the base portion 60B and the top sheet 30 and the joining of the tip portion 60A and the base portion 60B may be performed by the same means or by different means. For example, it is preferable to join the base portion 60B and the top sheet 30 using a hot melt adhesive, and to join the tip portion 60A and the base portion 60B by material welding.

[0088] As the gathered sheet 62, flexible, uniform, and opaque nonwoven fabrics such as spunbond nonwoven fabric (SS, SSS, etc.), SMS nonwoven fabric (SMS, SSMMS, etc.), and meltblown nonwoven fabric can be suitably used, and may be treated with a water-repellent coating such as silicone as needed. In this case, the fiber weight of the nonwoven fabric should be 10-30 g / m². 2 It is preferable to keep it to a certain extent. Although not shown in the diagram, a waterproof film can also be interposed between the two folded gathered sheets 62.

[0089] As the gathered elastic member 63, a thread elastic or the like can be used. When using spandex thread elastic, the thickness is preferably 470 to 1240 dtex, and more preferably 620 to 940 dtex. The elongation rate of the gathered elastic member 63 when attached is preferably 150 to 350%, and more preferably 200 to 300%. The number of gathered elastic members 63 is preferably 2 to 6, and more preferably 3 to 5. The spacing between the gathered elastic members 63 is appropriately 3 to 10 mm. With this configuration, the gathered elastic member 63 can easily make contact with the skin over a wider area. The gathered elastic member 63 may be placed not only at the tip but also at the base.

[0090] In the raised portion 68 of the raised gather 60, at least one of the following methods can be used to bond the inner and outer layers of the gather sheet 62 and to fix the gathered elastic member 63 sandwiched between them: hot melt adhesive applied by various methods and fixing means such as heat sealing or ultrasonic sealing. Bonding the entire inner and outer layers of the gather sheet 62 would impair flexibility, so it is preferable that the parts of the gathered elastic member 63 other than the bonded portion are not bonded or are weakly bonded. In the illustrated example, hot melt adhesive is applied only to the outer surface of the gathered elastic member 63 using an application means such as a comb gun or Surewrap nozzle, and the member is sandwiched between the inner and outer layers of the gather sheet 62. This structure ensures that the gathered elastic member 63 is fixed to the inner and outer layers of the gather sheet 62 and fixed between the inner and outer layers of the gather sheet 62 using only the hot melt adhesive applied to the outer surface of the gathered elastic member 63.

[0091] Similarly, for fixing the fallen portion 67, at least one of the following methods can be used: hot melt adhesive applied using various methods, and material welding such as heat sealing or ultrasonic sealing.

[0092] (Side flaps) As shown in Figures 1 to 4, side flaps 70 extending laterally from the absorber 56 are provided on both sides of the interior body 200, and it is preferable that a side expansion region SG that expands and contracts in the front-rear direction is formed on these side flaps 70. The side flap 70 in the illustrated example has one or more elongated side elastic members 73 provided along the front-rear direction LD and spaced apart from each other, a first sheet layer 71 facing the outside of the side elastic members 73, and a second sheet layer 72 facing the inside of the side elastic members 73.

[0093] The sheet material forming the first sheet layer 71 and the second sheet layer 72 is not particularly limited, and an appropriate nonwoven fabric can be selected, such as the nonwoven fabric that can be used in the aforementioned rise-up gather 60 or the aforementioned exterior body 12F, 12B. In the illustrated example, as will be described later, the gathered sheet 62 of the rise-up gather 60 is extended to form the first sheet layer 71 and the second sheet layer 72. In this case, the front and rear ends of the side flap 70 coincide with the front and rear ends of the rise-up gather 60 (i.e., the front and rear ends of the interior body 200 in this case).

[0094] The side elastic members 73 are not particularly limited, and elongated elastic members similar to the gathered elastic members 63 described above can be used. The elongation rate of the side elastic members 73 in the installed state is preferably 150 to 350%, and more preferably 200 to 270%. The number of side elastic members 73 is preferably 2 to 16, and more preferably 6 to 10. The spacing between the side elastic members 73 is appropriately 5 to 10 mm.

[0095] The side elastic member 73 is fixed to the first sheet layer 71 and the second sheet layer 72. Various methods of application can be used to bond the first sheet layer 71 and the second sheet layer 72, and to fix the side elastic member 73 sandwiched between them. Hot melt adhesive HM can be applied using various methods, and fixing means such as heat sealing or ultrasonic sealing can be used to weld the material. If the bonding area between the first sheet layer 71 and the second sheet layer 72 is large, flexibility will be impaired, so it is preferable that the parts of the side elastic member 73 other than the bonded parts are not bonded or are weakly bonded. In the illustrated example, hot melt adhesive HM is applied only to the outer circumferential surface of the side elastic member 73 using an application means such as a comb gun or a Surewrap nozzle, and the side elastic member 73 is sandwiched between the first sheet layer 71 and the second sheet layer 72. This structure is such that the side elastic member 73 is fixed to the first sheet layer 71 and the second sheet layer 72, and fixed between the first sheet layer 71 and the second sheet layer 72, using only the hot melt adhesive HM applied to the outer circumferential surface of the side elastic member 73.

[0096] In the illustrated example, the sheet material forming the first sheet layer 71 and the sheet material forming the second sheet layer 72 are folded back at the side edges of the side flap 70, and this folded portion is fixed (sealed) to the back surface of the liquid-impermeable sheet 11. This fixing can be done using hot-melt adhesive HM as shown in the illustrated example, or by welding the materials together.

[0097] The side flaps 70 can be omitted.

[0098] (Exterior) The outer garments 12F and 12B, as shown in the illustrated example, consist of a rectangular front outer garment 12F which constitutes at least the torso portion of the front body F, and a rectangular rear outer garment 12B which constitutes at least the torso portion of the rear body B. The front outer garment 12F and rear outer garment 12B may not be continuous at the crotch and may be separated in the front-to-back direction LD (two-part outer garment type), or they may be continuous from the front to the back (one-piece outer garment type), although this is not shown. In the two-part outer garment type, the separation distance 12d in the front-to-back direction can be, for example, about 40-60% of the total length Y. In the illustrated example, the lower edges of the front outer garment 12F and rear outer garment 12B are straight lines along the width direction WD, but at least one of the lower edges of the front outer garment 12F and rear outer garment 12B may be curved to follow the leg circumference.

[0099] In a two-part outer casing type disposable diaper, the inner casing 200 is exposed between the front outer casing 12F and the rear outer casing 12B. Therefore, to prevent the liquid-impermeable sheet 11 from being exposed on the back surface of the inner casing 200, it is preferable that the back surface of the inner casing 200 is provided with a cover nonwoven fabric 13 extending from between the front outer casing 12F and the inner casing 200 to between the rear outer casing 12B and the inner casing 200. The inner and outer surfaces of the cover nonwoven fabric 13 can be bonded to opposing surfaces via hot-melt adhesive. The nonwoven fabric used for the cover nonwoven fabric 13 can be appropriately selected from the same material as that used for the outer casings 12F and 12B. Although not shown in the figures, the outer casing may extend continuously from the front body F to the back body B, passing through the crotch area. In this case, the outer casing will have a portion corresponding not only to the waist area T but also to the intermediate area L.

[0100] The front outer casing 12F and the rear outer casing 12B have a front waist portion and a rear waist portion that constitute the waist region T. In the examples shown in Figures 1 and 2, the front outer casing 12F and the rear outer casing 12B have the same dimensions in the front-rear direction LD, and neither the front outer casing 12F nor the rear outer casing 12B has a portion corresponding to the intermediate region L. However, as shown in Figure 7, the front-rear dimension of the rear outer casing 12B is longer than that of the front outer casing 12F, and the front outer casing 12F does not have a portion corresponding to the intermediate region L, but the rear outer casing 12B may have a buttock cover portion C extending from the waist region T towards the intermediate region L. Although not shown, the front outer casing 12F may also be provided with an inguinal cover portion extending from the waist region T towards the intermediate region L.

[0101] As shown in Figures 4 and 5, the outer casings 12F and 12B are formed by joining an outer sheet layer and an inner sheet layer adjacent to the outside and inside of the elastic members 16-19, respectively, using joining means such as hot melt adhesive or welding. The outer sheet layer and the inner sheet layer can be formed from two sheet materials 12S and 12H as shown in the illustrated example, or from a single sheet material. For example, in the latter case, the inner sheet layer and the outer sheet layer are formed in part or all of the outer casings 12F and 12B by the inner and outer portions of a single sheet material that is folded back at the edge of the waist opening WO (which may also be the edge on the crotch side). The illustrated example is the former example, where the sheet material 12S forming the outer sheet layer in the lower part of the waist wraps around the waist opening WO side of the sheet material 12H forming the inner sheet layer in the lower part of the waist and is folded back inwards, and this folded portion 12r extends to cover the end of the inner casing 200 on the waist opening WO side. On the other hand, in the waist area, the folded portion 12r is an inner sheet layer adjacent to the inside of the elastic member.

[0102] The outer casings 12F and 12B incorporate elastic members 16-19 to improve the fit around the wearer's waist, forming an elastic stretch region A2 that stretches elastically in the width direction WD as the elastic members 16-19 expand and contract. In this stretch region A2, the outer casings 12F and 12B contract as the elastic members contract in their natural length state, forming wrinkles or folds. When stretched in the longitudinal direction of the elastic members, they can be stretched to a predetermined elongation rate without wrinkles. As elastic members 16-19, in addition to elongated elastic members such as thread elastic (illustrated example), known elastic members such as strip-shaped, mesh-shaped, or film-shaped members can be used without particular limitation. Synthetic rubber or natural rubber may be used as elastic members 16-19.

[0103] To describe the elastic members 16-19 in the illustrated example in more detail, multiple waist elastic members 17 are attached to the waist portion W of the outer bodies 12F and 12B at intervals in the front-rear direction so as to be continuous throughout the width direction WD. Furthermore, one or more of the waist elastic members 17 located in the region adjacent to the lower waist portion U may overlap with the inner body 200, or they may be provided on both sides in the width direction, excluding the central portion in the width direction that overlaps with the inner body 200. The waist elastic members 17 have a thickness of 155-1880 dtex, particularly around 470-1240 dtex (in the case of synthetic rubber; in the case of natural rubber, the cross-sectional area is 0.05-1.5 mm²). 2 Especially 0.1~1.0mm 2 It is preferable to provide 2 to 15 strands, particularly 4 to 10 strands, of elastic thread (of a certain thickness) at intervals of 2 to 12 mm, especially at intervals of 3 to 7 mm, and the resulting elongation rate of the waist portion W in the width direction WD is preferably 150 to 400%, particularly 220 to 320%. Furthermore, it is not necessary to use elastic members of the same thickness or have the same elongation rate throughout the entire front-to-back direction LD of the waist portion W; for example, the thickness and elongation rate may differ in parts.

[0104] Furthermore, multiple waist-lower elastic members 16 and 19, made of elongated elastic material, are attached to the waist-lower portion U of the outer casings 12F and 12B at intervals in the front-to-back direction, forming a waist-lower expansion region (a region having waist-lower elastic members 16 and 19). The waist-lower elastic members 16 and 19 have a thickness of 155 to 1880 dtex, particularly around 470 to 1240 dtex (in the case of synthetic rubber; in the case of natural rubber, the cross-sectional area is 0.05 to 1.5 mm²). 2 Especially 0.1~1.0mm 2 It is preferable to provide about 5 to 30 strands of elastic thread (of a certain thickness) at intervals of 1 to 15 mm, particularly 3 to 8 mm, and the resulting elongation rate of the width direction WD of the lower waist U is preferably 200 to 350%, particularly 240 to 300%. Furthermore, it is not necessary to use elastic members of the same thickness or have the same elongation rate throughout the entire front-to-back direction LD of the lower waist U; the thickness and elongation rate may differ in parts.

[0105] When elastic members 16 and 19 are provided in the front-to-back range having an absorbent 56, as shown in the illustrated example below the waist U, it is preferable that, in order to prevent contraction of the absorbent 56 in the width direction WD in part or all of the area, the middle part in the width direction including part or all of the portion overlapping the absorbent 56 in the width direction WD is designated as a non-stretchable region A1, and both sides of it in the width direction are designated as stretchable regions A2 (in the illustrated example, this becomes the stretchable region below the waist). The width direction dimensions of the stretchable regions A2 provided on both sides of the width direction of the non-stretchable region A1 are made substantially constant in the front-to-back direction LD as shown in the illustrated example, or they can be changed in the front-to-back direction LD, although this is not shown. Furthermore, the width direction WD dimensions of the stretchable regions A2 provided on both sides of the width direction WD of the non-stretchable region A1 are made substantially the same for the front body F and the back body B, or they can be different.

[0106] Such an expandable region A2 and a non-expandable region A1 can be constructed by attaching elastic members 16-17,19 between the inner sheet layer and the outer sheet layer, and then finely cutting the elastic members 16,19 by pressurizing and heating or cutting at one point or almost the entire widthwise middle of the region that will become the non-expandable region A1, thereby retaining elasticity in the expandable region A2 while eliminating elasticity in the non-expandable region A1. In this way, an unnecessary elastic member 18 that does not substantially contribute to the formation of elasticity will remain in the non-expandable region A1.

[0107] The sheet materials 12S and 12H forming the inner and outer sheet layers can be used without particular limitations, but nonwoven fabric is preferred. When using nonwoven fabric, the basis weight per sheet should be 10 to 30 g / m². 2 It is preferable to keep it to a certain extent.

[0108] The elastic members 16-19 can be fixed to the outer casings 12F and 12B by known methods. The inner sheet layer and the outer sheet layer can also be joined to each other by known methods. For example, in the portions of the outer casings 12F and 12B that have elastic members 16-19, hot melt adhesive HM can be applied only to the outer circumferential surfaces of the elastic members 16-19 using an application means such as a comb gun or a Surewrap nozzle, and then sandwiched between the inner and outer sheet layers. This allows the elastic members 16-19 to be fixed to the inner and outer sheet layers, as well as the inner and outer sheet layers, using only the hot melt adhesive HM applied to the outer circumferential surfaces of the elastic members 16-19.

[0109] (Interior body fixing part) The interior body 200 can be fixed to the exterior bodies 12F and 12B by joining means such as heat sealing or ultrasonic sealing, which involve material welding, or by using a hot-melt adhesive. In the illustrated example, the interior body 200 is fixed to the inner surfaces of the exterior bodies 12F and 12B via a hot-melt adhesive applied to the back surface of the interior body 200, that is, in this case, the back surface of the liquid-impermeable sheet 11 and the base portion 65 of the rising gather 60. The interior body fixing portion 20 that fixes the interior body 200 to the exterior bodies 12F and 12B can be provided over almost the entire area where the two overlap, as shown in Figure 2, and can also be provided in the portion excluding both ends in the width direction of the interior body 200.

[0110] <Explanation of terms used in the specification> The following terms in this specification shall have the meanings set forth below, unless otherwise specified in this specification.

[0111] "Front-to-back direction" refers to the direction indicated by the symbol LD in the diagram (vertical direction), and "width direction" refers to the direction indicated by WD in the diagram (left-to-right direction). The front-to-back direction and the width direction are orthogonal to each other.

[0112] "Front side" refers to the side that is closer to the wearer's skin when worn, while "back side" refers to the side that is further away from the wearer's skin when worn.

[0113] "Front side" refers to the side that is closer to the wearer's skin when worn, while "back side" refers to the side that is further away from the wearer's skin when worn.

[0114] • "Elongation rate" refers to the value relative to the natural length, which is set at 100%. For example, an elongation rate of 200% is equivalent to an elongation ratio of 2.

[0115] The "gel strength" is measured as follows: 49.0 g of artificial urine (a mixture of urea: 2 wt%, sodium chloride: 0.8 wt%, calcium chloride dihydrate: 0.03 wt%, magnesium sulfate heptahydrate: 0.08 wt%, and deionized water: 97.09 wt%) is mixed with 1.0 g of superabsorbent polymer and stirred with a stirrer. The resulting gel is left in a constant temperature and humidity chamber at 40°C × 60% RH for 3 hours, then returned to room temperature, and the gel strength is measured using a card meter (I.techno Engineering: Curdmeter-MAX ME-500).

[0116] "Weight" is measured as follows: After pre-drying the sample or test piece, leave it in a test room or apparatus under standard conditions (temperature 23±1°C, relative humidity 50±2%) to reach a constant weight. Pre-drying means bringing the sample or test piece to a constant weight in an environment of 100°C. Note that pre-drying is not necessary for fibers with an official moisture content of 0.0%. Using a sample-taking template (100mm x 100mm), cut out a sample measuring 100mm x 100mm from the test piece that has reached a constant weight. Measure the weight of the sample, multiply it by 100 to calculate the weight per square meter, and this is the weight.

[0117] The "thickness" of thick members such as the absorber 56, absorbent element 50, and the bottom of the recess 51 is measured using a thickness measuring instrument (Peacock, dial thickness gauge, model H (measurement range 0-10 mm, measurement area diameter 10 mm circular terminal, measuring force approximately 1.7 N, pressure approximately 21.7 KPa)) manufactured by Ozaki Seisakusho Co., Ltd., with the sample and the thickness measuring instrument held horizontally.

[0118] The "thickness" of thin sheets such as nonwoven fabrics is measured using an automatic thickness measuring instrument (KES-G5 handy compression measurement program) with a load of 0.098 N / cm². 2 , and pressure area: 2cm 2 Automatic measurement is performed under these conditions.

[0119] • Water absorption is measured according to JIS K7223-1996 "Test method for water absorption of superabsorbent polymers".

[0120] The water absorption rate shall be the "time to the endpoint" when 2 g of superabsorbent polymer and 50 g of physiological saline solution are used in the JIS K7224-1996 "Test method for water absorption rate of superabsorbent polymers".

[0121] "Deployed state" refers to a state in which the body is unfolded flat without any contraction (including contraction due to elastic members, etc.) or slack.

[0122] Unless otherwise specified, the dimensions of each part refer to the dimensions in the unfolded state, not the natural length state.

[0123] Unless otherwise specified, the tests and measurements shall be conducted in a test room or apparatus under standard conditions (temperature 23±1°C, relative humidity 50±2%). [Industrial applicability]

[0124] While the present invention is particularly suitable for pant-type disposable diapers in that solving the aforementioned problems is especially important, it can be used for all types of disposable absorbent articles, including tape-type disposable diapers, pad-type disposable diapers, and sanitary napkins. [Explanation of Symbols]

[0125] 11...Liquid impermeable sheet, 12A...Side seal, 12B...Rear outer casing, 12E...Waist extension, 12F,12B...Outer casing, 12F...Front outer casing, 12S,12H...Sheet material, 13...Cover nonwoven fabric, 16,19...Waist lower elastic member, 17...Waist elastic member, 18...Unnecessary elastic member, 20...Inner casing fixing part, 200...Inner casing, 30...Top sheet, 40...Intermediate sheet, 50...Absorbing element, 51...Recess, 51d...Bottom surface, 51f...Unit frame, 51s...Slope, 56...Absorbing material, 56L...Low basis weight part, 58...Wrapping paper, 60...Upright gather, 60A...Tip side part, 60B...Base side part, 62...Gathered sheet T, 63...Gathered elastic member, 67...Folded portion, 68...Standing portion, 70...Side flap, 71...First sheet layer, 72...Second sheet layer, 73...Side elastic member, 80...Skin care powder, 81...Accumulated material, A1...Non-stretchable area, A2...Stretchable area, B...Back body, C...Buttocks cover portion, F...Front body, HM...Hot melt adhesive, HM1...First hot melt adhesive, HM2...Second hot melt adhesive, L...Intermediate area, LD...Front-to-back direction, LO...Leg opening, M...Crotch area, SG...Side stretchable area, SR...Lateral area, T...Waist area, U...Lower waist portion, W...Waist portion, WD...Width direction, WO...Waist opening.

Claims

1. an absorbent element having an absorbent body provided in a region including a crotch region and a wrapping paper wrapping the absorbent body, the surface of which is made of the wrapping paper; a liquid-permeable top sheet provided to have a portion covering the front side of the absorbent element; the absorbent element has recesses on its surface in a spaced apart or continuous grid pattern; The recess has an accumulation of skin care powder, and the accumulation contains a fragrance. A disposable absorbent article characterized by:

2. The amount of the skin care powder in the recess is 1 to 10 g / m 2 and The recessed portion is recessed from the surface of the absorbent element to the absorbent body. The disposable absorbent article of claim 1.

3. The recess is formed by compressing the absorbent element in a thickness direction so as to be recessed from the surface of the absorbent element into the absorbent body, The recess has a bottom surface and a slope that slopes upward in a direction away from the edge of the bottom surface, The depth of the bottom surface of the recess is 1 to 5 mm, the ratio of the bottom surface of the recess to the surface of the absorbent element is 5 to 25%; The proportion of the slope of the recessed portion on the surface of the absorbent element is 9 to 45%.

3. The disposable absorbent article according to claim 1 or 2.

4. The recesses are formed in a grid pattern over the entire front-rear direction and the entire width direction of the absorbent element, The width of the bottom surface of the recess is 1 to 10 mm, The width and front-rear dimensions of the unit frame formed by the recess are each 10 to 25 mm.

4. The disposable absorbent article of claim 3.

5. the top sheet is a nonwoven fabric, The recess is provided in an area overlapping a skin contact area that contacts the wearer's skin, at least a portion of the skin care powder is not fixed to a surrounding member and is able to pass through the top sheet and move to the front side of the top sheet; the top sheet is adhered to the surface of the absorbent element via a hot melt adhesive without any other sheet therebetween; The adhesive surfaces of the top sheet and the absorbent element are bonded in a net-like pattern with non-adhesive portions scattered therebetween, The skin care powder is disposed in an area overlapping the non-adhesive portion. The disposable absorbent article according to any one of claims 1 to 4.

6. The top sheet has a fineness of 1 to 3 dtex and a basis weight of 10 to 25 g / m 2 , a spunbond nonwoven fabric having a thickness of 0.1 to 0.5 mm; The basis weight of the hot melt adhesive on the adhesive surface between the top sheet and the absorbent element is 1 to 3 g / m 2 That is, 6. The disposable absorbent article of claim 5.

7. The wrapping paper has a basis weight of 10 to 20 g / m 2 , a thickness of 0.05 to 0.2 mm, a crepe paper having a crepe rate of 10 to 30%, The disposable absorbent article according to any one of claims 1 to 6.

8. The 50% diameter of the skin care powder is 10 to 30 μm, The basis weight of the skin care powder on the surface of the absorbent element is 0.2 to 2 g / m 2 and The skin care powder is present both inside and outside the recesses. The disposable absorbent article according to any one of claims 1 to 7.

9. The skin care powder consists of starch particles only. The disposable absorbent article according to any one of claims 1 to 8.

10. an absorbent element having an absorbent body provided in a region including a crotch region and a wrapping paper wrapping the absorbent body, the surface of which is made of the wrapping paper; A liquid-permeable top sheet provided to have a portion covering the front side of the absorbent element, forming the absorbent element having recesses on its surface in either a spaced apart pattern or a continuous grid pattern; Before attaching the top sheet, a suspension containing a fragrance, a skin care powder, and water is sprayed onto the surface of the absorbent element having the recesses, the surface of the absorbent element is dried, and the accumulation of the skin care powder and the fragrance contained therein are left in the recesses. A method for manufacturing a disposable absorbent article.

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