JP3776014B2 - Absorbent article and manufacturing method thereof - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to absorbent articles such as sanitary napkins, panty liners, incontinence pads, etc. for absorbing menstrual blood, cages, and the like, and more particularly, in absorbent articles having hip hold flaps on both sides of the rear fold. Further, the present invention relates to an absorbent article that has an after-leakage prevention effect by providing the hip-hold flap portion with an absorption function.
[0002]
[Prior art]
Conventionally, as an absorbent article such as a panty liner, sanitary napkin, incontinence pad, a liquid-impervious back sheet such as a polyethylene sheet or a polyethylene sheet-laminated nonwoven fabric, and a liquid-permeable top sheet such as a nonwoven fabric or a liquid-permeable plastic sheet There is known an intervening absorber made of cotton-like pulp or the like.
[0003]
In recent years, various products according to the amount of body fluid and the wearing time zone have been proposed for the absorbent article. For example, in a sanitary napkin for night use, the hip side is completely held in addition to the wing-shaped flaps provided on both sides in the longitudinal direction of the napkin in order to more firmly fix the undergarment and prevent back leakage. In order to do this, there are some which have flaps (hereinafter referred to as hip-hold flaps) that extend to the sides on both sides of the rear side.
[0004]
Specifically, as shown in FIG. 9 and FIG. 10, the absorbent article (sanitary napkin) has a liquid-impervious back sheet 52 made of a polyethylene sheet or the like and a permeate that allows menstrual blood or the like to permeate rapidly. Liquid top sheet 53, absorbent body 54 made of cotton-like pulp or synthetic pulp interposed between both sheets 52, 53, and a pair of left and right three-dimensional gathers BS, BS provided on both sides of the surface The outer edge of the liquid-impervious back sheet 52 and the liquid-permeable top sheet 53 at the front and rear edges of the absorber 54 is an adhesive such as hot melt or heat. The liquid-impermeable back sheet 52 which is bonded by an adhesive means such as a seal and extends to the side of the absorbent body 54 at both side portions (side flap portions), and the three-dimensional gather B Are bonded to each other by an adhesive such as hot melt, or an adhesive means such as heat seal, and project laterally by the laminated sheet portion of the liquid-impermeable back sheet 52 and the side nonwoven fabric 55. The wing-shaped flaps W and W are formed, and the hip-hold flaps HF and HF are formed on the rear side portion.
[0005]
The adhesive layers 56, 57,... Are provided on the outer surface side of the wing-shaped flaps W, W and the hip-hold flaps HF, HF, and in order to attach the sanitary napkin 50 to the underwear, the sanitary napkin 50 is used. The wing-shaped flaps W, W that project to the side and project outward from the underwear, turn back at the fold lines RL, RL at the flap base end, and wrap around the crotch portion of the underwear while wrapping the crotch portion of the underwear (See FIG. 11).
[0006]
[Problems to be solved by the invention]
As described above, the hip-hold flaps HF and HF are constituted by a two-layer sheet in which the side nonwoven fabric 55 and the liquid-impervious back sheet 52 are bonded together, and basically have no absorption function such as menstrual blood. Due to the structure, the leakage preventing effect was insufficient when there was a body fluid that leaked from the absorbent body 54 or exuded through the liquid-permeable top sheet 53.
[0007]
Japanese Patent Application Laid-Open No. 2000-189459 proposes an absorbent article in which a wing absorber is provided in the hip-hold flaps HF and HF. Specifically, in this publication, a hydrophilic nonwoven fabric having substantially the same shape as the liquid-impervious backsheet on its upper surface side after the wing absorber is disposed on the hip-hold flaps HF and HF of the liquid-impervious backsheet. The absorbent article according to the first aspect, in which an absorbent unit whose outer periphery is covered with a liquid-permeable nonwoven fabric is disposed and fixed on the upper surface side, and the main body absorbent body and the wing absorbent body are arranged in parallel. And an absorbent article according to a second embodiment in which a separating member made of a sheet such as a hydrophobic nonwoven fabric or foam is interposed between the absorbent bodies and the absorbent bodies are partitioned.
[0008]
Certainly, if the wing absorber is provided, the absorption capacity in the hip-hold flaps HF and HF portions will increase dramatically, but in the case of the absorbent article according to the first aspect, Since the wing absorbent body having a high rigidity exists on the lower layer side of the absorbent body, there is a problem in that a sense of incongruity is felt at the bottom of the buttocks, and the fit property is impaired. Moreover, in the case of the absorbent article which concerns on a 2nd aspect, although a main body absorber and a wing-like absorber are arranged in parallel and there is no part where absorbers are laminated, since both absorbers are separated completely Further, since menstrual blood or the like absorbed by the main body absorbent only diffuses to the rear side of the main body absorber, there is a problem that the liquid absorption capability of the rear side portion tends to be insufficient.
[0009]
On the other hand, these absorbent articles have a more complicated structure than the conventional structure, which increases the number of manufacturing processes and requires significant changes to the current production line, resulting in deterioration in production efficiency and changes in the production line. In addition, there are problems such as requiring a large capital investment.
[0010]
Accordingly, a first problem of the present invention is that, in an absorbent article in which hip hold flaps are formed on both sides of the rear fold, when the absorbent sheet-like member is provided on the hip hold flap, a sense of incongruity is felt at the bottom of the buttocks. The body fluid absorbed by the absorbent body of the main body is diffused not only in the rear side but also in the lateral direction to enhance the body fluid absorption retention capacity and ensure rear leakage. An object of the present invention is to provide an absorbent article that can be prevented.
[0011]
Next, a second problem is to provide a manufacturing method capable of efficiently manufacturing an absorbent article without requiring a large equipment change in providing an absorbent sheet-like member on the hip hold flap. It is in.
[0012]
[Means for Solving the Problems]
In order to solve the first problem, according to the first aspect of the present invention, an absorbent body is interposed between the liquid-permeable top sheet and the liquid-impermeable back sheet, and the rear part is a hip-hold on both side parts. In the absorbent article in which the flap for use is formed and the sheet-like absorbent member is disposed in the hip-hold flap portion,
The sheet-like absorbent member is disposed on both sides with an interval between the inner edges being at least 30 mm apart in the width direction of the absorbent article, and the inner end region of each sheet-like absorbent member is the above-mentioned There is provided an absorbent article characterized in that the absorbent article and the sheet-like absorbent member are joined to each other so as to allow diffusion of body fluids.
[0013]
The present invention according to claim 2 provides the absorbent article according to claim 1, wherein the sheet-like absorbent member is divided into two absorbent sheet pieces by cutting along the longitudinal direction of the absorbent article. Is done.
[0014]
As the present invention according to claim 3, the outer edge of the sheet-like absorbent member is located at least 3 mm or more inside the outer edge of the absorbent article. Is provided.
[0015]
In order to solve the second problem, the present invention according to claim 4 is the method for manufacturing an absorbent article according to any one of claims 1 to 3, wherein the liquid-impermeable back sheet is used in an assembly line. In the transport line to supply
Cutting the continuous strip-shaped sheet-shaped absorbent member into the cutting step, and cutting the sheet-shaped absorbent member respectively disposed on both sides into a shape joined without a gap;
A separation step of separating the two cut sheet-shaped absorbent members into a predetermined separation width in the conveying process;
After assembling the absorbent article after the sheet-like absorbent member is integrally provided on the liquid-impervious backsheet by the adhesion step of adhering the two separated sheet-like absorbent members to the liquid-impervious backsheet Provided is a method for manufacturing an absorbent article, characterized by being supplied to a line.
[0016]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
[0017]
1 is a developed view of a sanitary napkin 1 according to the present invention, FIG. 2 is a view taken along the line II-II in FIG. 1, and FIG. 3 is a view taken along the line III-III in FIG.
[0018]
The sanitary napkin 1 includes a liquid-impervious back sheet 2 made of a polyethylene sheet, a liquid-permeable top sheet 3 that allows permeation of menstrual blood, cages, and the like, and an intervening sheet between the sheets 2 and 3. Absorbent body 4 made of cotton-like pulp or synthetic pulp, etc., crepe paper 5 surrounding the absorbent body 4 for maintaining the shape of the absorbent body 4 and improving diffusibility, and substantially side edges of the absorbent body 4 The absorbent body is mainly composed of a pair of left and right three-dimensional gathers BS and BS provided with a portion as a standing base end and projecting to the surface side in a predetermined section in the front-rear direction at least from the blood outlet corresponding portion. 4, the outer edges of the liquid-impervious backsheet 2 and the liquid-permeable topsheet 3 are joined at the front and rear end edges thereof by an adhesive such as hot melt or an adhesive means such as heat seal. The liquid-impervious backsheet 2 extending laterally from the absorbent body 4 at both side edges and the laterally extending sheet portion of the side nonwoven fabric 7 forming the three-dimensional gather BS are hot-melted. Wing-like flaps W and W that are bonded to each other by an adhesive such as an adhesive or heat seal, and project laterally by the laminated sheet portion of the liquid-impermeable back sheet 2 and the side nonwoven fabric 7 are formed. , Hip-hold flaps HF and HF are formed in a portion located on the rear side of this.
[0019]
Hereinafter, the structure of the sanitary napkin 1 will be described in detail.
As the liquid-impervious backsheet 2, a sheet material having at least water shielding properties such as polyethylene is used. The water- and moisture-permeable sheet material is a microporous material obtained by melting and kneading an inorganic filler in an olefin-based resin such as polyethylene or polypropylene to form a sheet, and then stretching in a uniaxial or biaxial direction. A sheet is preferably used. One or a plurality of adhesive layers (not shown) are formed on the non-use side (outer surface) of the liquid-impermeable back sheet 2 so as to fix the sanitary napkin 1 to the underwear when worn on the body. It has become.
[0020]
Next, the liquid-permeable top sheet 3 is preferably a porous or non-porous nonwoven fabric or a porous plastic sheet. As the material fibers constituting the nonwoven fabric, in addition to olefins such as polyethylene or polypropylene, polyesters, polyamides, and other synthetic fibers, regenerated fibers such as rayon and cupra, and natural fibers such as cotton can be used. A nonwoven fabric obtained by an appropriate processing method such as a method, a spun bond method, a thermal bond method, a melt blown method, or a needle punch method can be used. Among these processing methods, the spunlace method is excellent in terms of flexibility and drapeability, and the thermal bond method is excellent in terms of being bulky and soft. When a large number of through holes are formed in the liquid permeable top sheet 3, menstrual blood, venom, etc. (hereinafter collectively referred to as body fluid) are quickly absorbed, and the dry touch property is excellent. It will be a thing.
[0021]
The absorbent body 4 is not particularly limited as long as it can absorb and retain bodily fluids. Usually, a fluffy pulp mixed with a water-absorbing polymer powder is preferably used from the viewpoint of the absorption function and cost. The absorbent body 4 is preferably surrounded by crepe paper 5 to maintain its shape. The surface of the liquid-permeable top sheet 3 is provided with a plurality of embosses 6a to 6c for holding the absorbent body, causing the liquid-permeable top sheet to bulge tightly on the surface side, and containing the absorbed body fluid.
[0022]
On the other hand, the width dimension of the liquid-permeable top sheet 3 is slightly longer than the width of the absorbent body 4 and covers the absorbent body 4 as shown in the cross-sectional views of FIGS. The three-dimensional gathered BS is configured by using a side nonwoven fabric 7 different from the liquid-permeable top sheet 3. The side nonwoven fabric 7 has a water-repellent material itself or a silicon-based, paraffin-based, alkylchromic chloride-based water repellent, etc. in order to prevent body fluids such as menstrual blood and vaginal discharge from flowing out to the side. A non-woven fabric material subjected to an appropriate water-repellent treatment such as coating is used.
[0023]
As shown in FIGS. 2 and 3, the side nonwoven fabric 7 has an outer portion from the intermediate portion in the width direction from the inner position of the absorbent body 4 to slightly beyond the absorbent side edge to the outer edge of the liquid-impermeable backsheet 2. A pair of left and right wings are adhered to the absorbent body side position substantially corresponding to the body fluid discharge port by the laminated sheet portion of the side nonwoven fabric 7 and the liquid-impermeable back sheet 2. The flaps W, W are formed, and the hip-hold flaps HF, HF are formed at the rear side position. These wing-shaped flaps W, W and hip-hold flaps HF, HF are each provided with an adhesive layer 10..., As shown in FIG. Is folded back to the opposite side by a folding line RL, and is wound around the crotch portion of the shorts and fastened.
[0024]
On the other hand, the inner part of the side nonwoven fabric 7 is folded back almost double, and inside the double sheet, both ends or a suitable position in the longitudinal direction is fixed to the middle part in the height direction. Are disposed on the upper portion of the thread-like elastic stretchable member 8 in a state where two thread-like elastic stretchable members 9, 9 in the illustrated example are fixed at both ends or at appropriate positions in the longitudinal direction. It is installed. As shown in FIG. 3, the double sheet portion is bonded to the absorbent body 4 side in a state of being folded and laminated in a Z-shaped cross section so that the portion where the thread-like elastic elastic member 8 is disposed is arranged. As the bending point, solid gathers BS and BS standing on the surface side are formed while forming a pocket with an opening facing inward in a cross-sectional shape.
[0025]
In the sanitary napkin 1, as shown in FIG. 1 and FIG. 3, a side extending sheet portion of the side nonwoven fabric 7 and a liquid-impermeable back sheet 2 on the hip-hold flaps HF and HF portions. The sheet-like absorbent members 11 and 11 are provided between the side extending sheet portions. As this sheet-like absorbent member 11, for example, a material made only of pulp fibers or a mixture of pulp fibers and chemical fibers can be used, but crepe paper made only of pulp fibers is used from the viewpoint of cost. Is desirable.
[0026]
The sheet-like absorbent members 11, 11 are disposed on both sides such that the distance D between the inner end edges 11 a, 11 a is at least 30 mm apart in the width direction of the absorbent article 1. The inner end regions of the members 11 and 11 are disposed so as to overlap the lower surface side of the absorber 4 side portion, and the absorber 4 and the sheet-like absorbent member 11 are joined in a state allowing diffusion of body fluid. . In this way, the sheet-like absorbent members 11 and 11 are arranged apart from each other, and at least the portion corresponding to the bottom of the buttocks is made the absorbent body 4 alone, whereby the rigidity can be minimized. As a result, there is no sense of incongruity in the buttocks when worn, and the fit is good. Further, since the absorbent body 4 and the sheet-like absorbent member 11 are joined in a state in which the liquid can be diffused, the body fluid absorbed by the absorbent body 4 also diffuses to the sheet-like absorbent member 11 side. The body fluid absorption capacity at the rear portion can be increased. In addition, when the space | interval D of inner edge 11a, 11a of the sheet-like absorption members 11 and 11 is less than 30 mm in the width direction of the absorbent article 1, the sheet-like absorption member 11 exists in the hollow part of the buttocks. Will feel uncomfortable.
[0027]
In this case, the pair of left and right sheet-like absorbent members 11 and 11 are each divided into two absorbent sheet pieces by cutting along the longitudinal direction of the absorbent article 1 according to the manufacturing method described later. Is desirable. Furthermore, since the side nonwoven fabric 7 and the liquid-impermeable back sheet 2 are heat-sealed at the outer edge of the hip-hold flaps HF and HF, if the sheet-like absorbent member 11 is present in this heat seal, the sheet shape is formed by heat sealing. Since the absorbent member 11 is solidified and feels uncomfortable, the outer edge of the sheet-like absorbent member 11 is positioned at least 3 mm or more inside (reference numeral S) from the outer edge of the absorbent article. desirable.
[0028]
On the other hand, the sheet-like absorbent member 11 receives a large bending stress or shearing stress from the heel portion, and at the same time, if the rigidity is too high, the skin feels uncomfortable and impairs the wearability. Therefore, a material with proper hardness (deformation resistance) against pure bending and shearing and its recoverability should be used.
[0029]
As one specific example of the deformation resistance and its recovery property, the deformation performance value with respect to pure bending by a pure bending tester (manufactured by Kato Tech Co., Ltd.) is 2.94 mN · cm 2 / cm 2 or less, preferably 1. It is preferably 96 mN · cm 2 / cm or less and having a deformation performance value against shearing by a tensile shear tester (manufactured by Kato Tech Co., Ltd.) of 80 N / m · deg or less, preferably 50 N / m · deg or less. used. When the deformation performance value with respect to the pure bending exceeds 2.94 mN · cm 2 / cm and / or when the deformation performance value with respect to shear exceeds 80 N / m · deg, the hardness may be felt at the time of wearing, and an uncomfortable feeling may be given. Become.
[0030]
The pure bending tester is a tester for simulating softness-hardness that humans feel when bending an object in a curved shape, and can measure bending hardness and bend recovery. . In the test, a test piece is sandwiched between chucks, bent so as to reciprocate once with a sensitivity of 2 × 1 (force gauge 20 g / V) and a maximum bending curvature of ± 2.5 cm ⁻¹ , and the bending curvature is 0.5 to 1.5 ( The slope value (B value) in the range of cm ⁻¹ ) is used as an index value, and the larger the B value, the harder and less deformable it is (see FIG. 4).
[0031]
On the other hand, the tensile shear tester is a tester for simulating the softness-hardness felt when a human moves an object, and is capable of measuring the ease of misalignment, recoverability against misalignment, and the like. In the test, hold the test piece with the chuck and continue to apply the tension of W = 10gf / cm in the length direction, so as to make one reciprocation with a sensitivity of 2 × 5 (force gauge 4g / V) and maximum angle ± 2deg. It is deformed in the shear direction, and the slope value (G value) in the range of the shear angle of 0.2 to 0.4 (degree) is used as an index value. The smaller this G value, the higher the shear deformability. (See FIG. 5).
[0032]
On the other hand, the side nonwoven fabric 7 covering the surface side of the sheet-like absorbent member 11 is configured using a non-woven fabric material having water repellency in order to prevent body fluids such as menstrual blood and vaginal discharge from flowing out to the side. However, when the water repellency is high, body fluid leaking outside the three-dimensional gather BS cannot be absorbed by the sheet-like absorbent member 11 in the hip-hold flaps HF and HF. Therefore, it is necessary to allow the permeation of body fluid to some extent while having water repellency.
[0033]
Accordingly, the side nonwoven fabric 7 in the sanitary napkin 1 is a water-repellent nonwoven fabric having a water pressure resistance test value (low water pressure test-hydrostatic pressure method) according to JIS L1092 of 40 mm to 160 mm, preferably 50 to 70 mm. In addition, the sheet-like absorbent member having a Krem water absorption according to JIS P8141 of 5 mm to 50 mm, preferably 15 to 20 mm is used.
[0034]
When the water pressure resistance test value of the side nonwoven fabric 7 is less than 40 mm, the body fluid is not leak-proof and the body fluid cannot be blocked by the three-dimensional gather BS. Further, when the water pressure resistance test value exceeds 160 mm, the liquid permeability is poor and the body fluid cannot pass through the side nonwoven fabric 7, and the meaning of disposing the sheet-like absorbent member 11 is substantially lost. Non-woven fabrics having such physical properties, in other words, non-woven fabrics having both liquid permeability and non-liquid permeability, are air-through non-woven fabrics which are fused only at the locations where the fibers are in contact with each other and have a large inter-fiber distance. Most preferred. More specifically, it is desirable to use an air-through nonwoven fabric prepared with a basis weight of 18 to 30 g / m ² , and silicon-based, paraffin-based, and alkylchromic chloride-based repellent materials to prevent permeation of body fluids with certainty. A water-repellent treated non-woven fabric coated with a liquid agent is preferably used.
[0035]
Further, when the sheet-like absorbent member 11 has a Klem water absorption of less than 5 mm, the absorption speed is poor and the body fluid reverts. Further, when the water absorption by Klem exceeds 50 mm, there is a concern that the side nonwoven fabric 7 and the liquid-impervious backsheet 2 may ooze out due to high diffusibility.
[0036]
By the way, when joining the side nonwoven fabric 7 and the liquid-impermeable back sheet 2 in the hip-hold flaps HF and HF, methods such as hot melt adhesive, ultrasonic bonding, and emboss bonding are appropriately employed. Hot melt adhesive is preferable from the viewpoints of performance and operability. Of these hot melt adhesives, hydrophilic hot melt adhesives are preferred. According to the hydrophilic hot melt adhesive, since the water contact angle (°) is small, the body fluid does not have a polka dot shape, and the body fluid easily passes through the side nonwoven fabric 7. Moreover, it is desirable that the coating method is applied in a spiral shape so as not to obstruct the passage of body fluid from the surface.
[0037]
Next, in the method for manufacturing the sanitary napkin 1 described above, as shown in the exploded view of FIG. 6, the sheet-like absorbent members 11 and 11 are integrally provided in advance on the liquid-impervious backsheet 2 side. After that, it is desirable to assemble the napkin 1.
[0038]
Specifically, as shown in FIG. 7, a hot melt adhesive was applied to a predetermined portion of the backsheet 2 by a coater 17 in a conveyance line for supplying the liquid-impermeable backsheet 2 to the assembly line. Then, after adhering the sheet-like absorbent members 11 and 11 to the back sheet 2 at the transfer roll 16 site via the direction changing roll 18A, the sheet is sent to the next assembly step via the direction changing roll 18B.
[0039]
The supply of the sheet-like absorbent members 11 and 11 is first arranged on both sides by passing the continuous belt-like sheet-like absorbent member 12 between the cutter roll 13 and the anvil-cum-use vacuum roll 14 facing each other. The formed sheet-like absorbent members 11, 11 are cut into a shape joined without a gap (cutting step). The cut sheet-shaped absorbing members 11 and 11 are conveyed by an anvil / vacuum roll 14 and transferred to the next widening drum 15. In the widening drum 15, as shown in FIG. 8, in the course of carrying in the circumferential direction, the carriages 19 and 19 for sucking and holding the sheet-like absorbing member 11 are guided by cams (not shown) and moved in the separating direction. As a result, the two cut sheet-shaped absorbent members 11 and 11 are separated by a predetermined separation width (separation step), and a predetermined interval is provided between the sheet-shaped absorbent members 11 and 11 arranged in the flow direction. The transfer sheet 16 is adhered to the back sheet 2 (adhesion process). In addition, you may make it provide the space | interval provision of the flow direction with respect to the said sheet-like absorption member 11 by supplying the said continuous strip-shaped sheet-like absorption member 12 intermittently to a cutting process.
[0040]
As described above, by providing the sheet-like absorbent members 11 and 11 in advance integrally with the backsheet 2 before supply to the assembly line, it is necessary to change equipment on the assembly line of the sanitary napkin. Therefore, it becomes possible to efficiently manufacture the sanitary napkin 1 according to the present invention.
[0041]
【The invention's effect】
As described above, according to the absorbent article according to the present invention, in the absorbent article in which the hip-hold flaps are formed on both sides of the rear part, the hip-hold flap is provided with the absorbent sheet-like member. In addition to improving the ability to absorb and retain body fluids by diffusing body fluids absorbed by the absorbent body of the main body not only in the rear side but also in the lateral direction. It is possible to reliably prevent the rear leakage.
[0042]
Moreover, according to the manufacturing method which concerns on this invention, when providing an absorption sheet-like member in the said flap for hip-holds, it becomes possible to manufacture an absorbent article efficiently, without requiring a big equipment change here.
[Brief description of the drawings]
FIG. 1 is a development view of a sanitary napkin 1 according to the present invention.
FIG. 2 is a transverse cross-sectional view (a view taken along the line II-II in FIG. 1).
FIG. 3 is a cross-sectional view (a view taken along the line III-III in FIG. 1).
FIG. 4 is a graph showing an example of measurement results of a pure bending test.
FIG. 5 is a graph showing an example of measurement results of a tensile shear test.
6 is an exploded view of the sanitary napkin 1. FIG.
7 is a schematic diagram of equipment for cutting and adhering a continuous strip-shaped absorbent member 12 to the back sheet 2. FIG.
FIG. 8 is an isolation diagram of the sheet-like absorbing members 11, 11 in the widening drum 15.
FIG. 9 is a development view of a conventional sanitary napkin.
10 is a cross-sectional view thereof (a view taken along line XX in FIG. 9).
FIG. 11 is a perspective view showing a mounted state of the napkin.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Sanitary napkin, 2 ... Impervious back sheet, 3 ... Liquid permeable top sheet, 4 ... Absorber, 5 ... Crepe paper, 7 ... Side nonwoven fabric, 11 ... Sheet-like absorbent member, BS ... Three-dimensional gather, W ... Wing flap, HF ... Hip hold flap

Claims (4)

An absorbent body is interposed between the liquid-permeable top sheet and the liquid-impermeable back sheet, and a hip-hold flap is formed on both sides of the rear fold, and a sheet-like absorption is formed on the hip-hold flap portion. In the absorbent article in which the member is disposed,
The sheet-like absorbent member is disposed on both sides with an interval between the inner edges being at least 30 mm apart in the width direction of the absorbent article, and the inner end region of each sheet-like absorbent member is the above-mentioned An absorbent article, wherein the absorbent article and the sheet-like absorbent member are joined to each other so as to allow diffusion of body fluid. The absorbent article according to claim 1, wherein the sheet-like absorbent member is divided into two absorbent sheet pieces by cutting along the longitudinal direction of the absorbent article. The absorbent article according to any one of claims 1 and 2, wherein an outer edge of the sheet-like absorbent member is located at least 3 mm inside an outer edge of the absorbent article. It is a manufacturing method of the absorptive article according to any one of claims 1 to 3, In the conveyance line for supplying the impermeable back sheet to an assembly line,
Cutting the continuous strip-shaped sheet-shaped absorbent member into the cutting step, and cutting the sheet-shaped absorbent member respectively disposed on both sides into a shape joined without a gap;
A separation step of separating the two cut sheet-shaped absorbent members into a predetermined separation width in the conveying process;
After assembling the absorbent article after the sheet-like absorbent member is integrally provided on the liquid-impervious backsheet by the adhesion step of adhering the two separated sheet-like absorbent members to the liquid-impervious backsheet A method for producing an absorbent article, characterized by being supplied to a line.

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