JP2012205708A - Absorbent article - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an absorbent article capable of improving fitting feeling of a wearer while surely preventing leakage from a rear part of the absorbent article.SOLUTION: A sanitation napkin 1 is provided with a hydrophilic or liquid-absorbing lengthwise separate sheet 100 which is separate from an absorber 40. The thickness of the separate sheet 100 is less than the thickness of the absorber 40. One surface of the separate sheet 100 is separably bonded to the surface on the clothing side of a back surface sheet 30, and the longitudinal direction of the separate sheet 100 is along the longitudinal direction of an absorbent body. The separate sheet 100 includes a separate sheet joining part 120 to be joined with the absorbent body, and the separate sheet 100 is joined with the absorbent body so as to be spread backward from the absorbent body with the separate sheet joining part 120 as a base point.

Description

  The present invention relates to a vertically long absorbent article including an absorbent main body including a liquid-permeable top sheet, a liquid-impermeable back sheet, and an absorbent body provided between the top sheet and the back sheet.

  2. Description of the Related Art Conventionally, in absorbent articles such as sanitary napkins, a shape in which a pair of left and right wing parts is provided at the rear part is widely used. Patent Document 1 discloses that, in an absorbent article provided with such a wing portion, the wing portion has an absorption function, thereby improving leakage prevention from the rear portion of the absorbent article. .

Japanese Patent No. 3548027 (second page, FIGS. 1 and 3)

  The absorbent article described in Patent Document 1 described above is said to be able to enhance the leakage prevention property of body fluid such as menstrual blood from the rear part of the absorbent article by adding an absorption function to the wing part. However, if a wing part is provided in the rear part, the adhesive area between the absorbent article and the undergarment increases in the first place.

  For this reason, the movement of the underwear (underwear stretchability) is transmitted to the absorbent article, and the absorbent article is likely to be twisted. In other words, the absorbent article provided with such a wing part is likely to have a gap between the absorbent article and the skin surface of the wearer, and even if the wing part has an absorption function, as a result, body fluid There is a problem that leaks easily.

  Moreover, when the wide wing part which has an absorptive function is provided in the back part of an absorbent article, there also exists a problem which gives the wearer the feeling and heatiness, and a wearing feeling deteriorates.

  Therefore, the present invention has been made in view of such circumstances, and provides an absorbent article that can improve the wearer's wearing feeling while reliably preventing leakage from the rear part of the absorbent article. Objective.

The first feature of the present invention is a liquid-permeable top sheet (top sheet 20), a liquid-impermeable back sheet (back sheet 30), and an absorption provided between the top sheet and the back sheet. A vertically long absorbent article (absorbent body 15) comprising a body (absorbent body 40) and having an absorbent main body (absorbent body 15) having a longitudinal direction (longitudinal direction L) and a crossing direction (crossing direction W) perpendicular to the longitudinal direction. Sanitary napkins 1),
A vertically long separate sheet (separate sheet 100) that is separate from the absorbent body and has hydrophilicity on the clothing side surface of the back sheet is disposed so as to be peelable along the longitudinal direction, One end in the longitudinal direction of the separate sheet has a separate sheet joint (separate sheet joint 120) to be joined to the absorbent main body, and the thickness (thickness T2) of the separate sheet is The separate sheet is thinner than the absorbent body (thickness T1), and the separate sheet can be deployed rearward from the absorbent main body with the separate sheet joint as a base point, and is opposed to the back sheet. The gist of the surface opposite to the surface of the separate sheet to be formed is to come into contact with the skin of the wearer when the separate sheet is deployed.

  The second feature of the present invention includes a liquid-permeable top sheet, a liquid-impermeable back sheet, and an absorbent body provided between the top sheet and the back sheet, the longitudinal direction and the longitudinal direction. A vertically long absorbent article comprising an absorbent main body having a crossing direction orthogonal to the direction, wherein the absorbent article is separated from the absorbent body on the clothing side surface of the back sheet, and is a vertically long separate article having hydrophilicity. A body sheet is disposed so as to be peelable along the longitudinal direction, and one end portion in the longitudinal direction of the separate sheet has a separate sheet joint portion joined to the absorbent main body, The thickness is thinner than the thickness of the absorber, and the separate sheet can be deployed forward of the absorbent main body with the separate sheet joint as a base point, and the separate sheet facing the back sheet. The surface opposite the surface of the body sheet is the separate sheet. Doo is summarized in that formed so as to be in contact with the skin of the wearer in the deployed state.

  According to the features of the present invention, it is possible to provide an absorbent article that can improve the wearer's wearing feeling while reliably preventing leakage from the rear part of the absorbent article.

1 is a plan view of the back side (clothing side) of a sanitary napkin 1 according to an embodiment of the present invention. FIG. 3 is a plan view of the surface side (skin contact surface side) of the sanitary napkin 1 according to the embodiment of the present invention. It is sectional drawing of the sanitary napkin 1 along the F3-F3 line | wire of FIG. It is sectional drawing of the sanitary napkin 1 along the F4-F4 line | wire of FIG. It is sectional drawing of the sanitary napkin 1 along the F5-F5 line | wire of FIG. FIG. 3 is a plan view of the back side (clothing side) of the sanitary napkin 1 when the separate sheet 100 according to the embodiment of the present invention is deployed. FIG. 3 is a plan view of the surface side (skin contact surface side) of the sanitary napkin 1 when the separate sheet 100 according to the embodiment of the present invention is deployed.

  Next, an embodiment of an absorbent article according to the present invention will be described with reference to the drawings. In the following description of the drawings, the same or similar parts are denoted by the same or similar reference numerals. However, it should be noted that the drawings are schematic and ratios of dimensions and the like are different from actual ones.

  Accordingly, specific dimensions and the like should be determined in consideration of the following description. Moreover, the part from which the relationship and ratio of a mutual dimension differ also in between drawings may be contained.

(1) Structure of absorbent article First, with reference to FIGS. 1-5, the structure of the sanitary napkin 1 which comprises an absorbent article in this embodiment is demonstrated.

  FIG. 1 is a plan view of the back side (clothing side) of the sanitary napkin 1. FIG. 2 is a plan view of the sanitary napkin 1 on the surface side (skin contact surface side). 3 to 5 are sectional views of the sanitary napkin 1. Specifically, FIG. 3 is a cross-sectional view of the sanitary napkin 1 taken along line F3-F3 in FIG. 4 is a cross-sectional view of the sanitary napkin 1 taken along line F4-F4 of FIG. FIG. 5 is a sectional view of the sanitary napkin 1 taken along line F5-F5 in FIG.

  As shown in FIGS. 1 to 5, the sanitary napkin 1 includes an absorbent body 15 (see FIG. 3) including a top sheet 20, a back sheet 30, and an absorbent body 40. The absorbent body 15 has a longitudinal direction L and a crossing direction W orthogonal to the longitudinal direction L on the plane of the absorbent body 15.

  The top sheet 20 is a liquid-permeable sheet that allows passage of body fluid such as menstrual blood. As the surface sheet 20, for example, a porous or non-porous nonwoven fabric or a porous plastic sheet can be used.

  The back sheet 30 is a liquid-impermeable sheet that does not transmit body fluid. As the back sheet 30, a hydrophobic nonwoven fabric, a water-impermeable plastic film, a laminate sheet of a nonwoven fabric and a water-impermeable plastic film, and the like can be used. Alternatively, as the back sheet 30, an SMS nonwoven fabric sandwiched between a melt-blown nonwoven fabric with high water resistance or a strong spunbond nonwoven fabric may be used.

  The absorber 40 is provided between the top sheet 20 and the back sheet 30, and absorbs body fluid and the like. As the absorbent body 40, a material composed of fluffy pulp or air laid nonwoven fabric and a superabsorbent polymer can be used. Examples of fluffy pulp include artificial cellulose fibers such as chemical pulp, cellulose fibers, rayon and acetate. As an airlaid nonwoven fabric, the nonwoven fabric which fixed the pulp and the synthetic fiber by heat sealing | fusion or the binder is mentioned. Examples of the superabsorbent polymer include starch-based, acrylic acid-based, and amino acid-based particulate or fibrous polymers.

  The sanitary napkin 1 includes a pair of wings 45 extending in the crossing direction W (width direction) from the absorbent body 15. The wing 45 is folded back to the clothing (underwear) side. On the back side (clothing side) of the wing 45, a pair of adhesive portions 50 that adhere to the undergarment are formed. Further, the sanitary napkin 1 is formed with a pair of adhesive portions 60 that adhere the back sheet 30 to the crotch portion (predetermined portion) of the clothes (underwear) so as to be peelable. The adhesive portion 60 is formed on the clothing side surface of the back sheet 30.

  Examples of the adhesive part 50 and the adhesive part 60 include styrene-isoprene-styrene block copolymer (SIS), styrene-butadiene-styrene block copolymer (SBS), and styrene-ethylene-butylene-ethylene copolymer (SEBS). The hot-melt pressure-sensitive adhesive can be used.

  Further, a round seal portion 80 is formed at the rear end portion of the absorbent body 15 along the outer edge portion of the topsheet 20 and the outer edge portion of the backsheet 30. The topsheet 20 and the backsheet 30 are joined together. Is done. In the present embodiment, the round seal portion 80 constitutes a main body joint portion. Similarly, a round seal portion 90 in which the top sheet 20 and the back sheet 30 are joined is formed at the front end of the absorbent body 15.

  Next, the separate sheet 100 that is a characteristic part of the sanitary napkin 1 will be described. The separate sheet 100 is a vertically long sheet having hydrophilicity (or liquid absorbability). The separate sheet 100 is configured as a separate body separated from the absorber 40. The separate sheet 100 is made of a sheet material that can hold and absorb excretion (liquid) such as menstrual blood, is bulky, and has little chemical irritation. For example, as the separate sheet 100, the same material as that of the top sheet 20 can be used. Alternatively, the same material as that of the absorber 40 may be used as the separate sheet 100.

  One surface of the separate sheet 100, specifically, the surface facing the back sheet 30 when the separate sheet 100 is in a non-deployed state is formed so as to be detachably adhered to the clothing side surface of the back sheet 30. The In the present embodiment, a release sheet portion 150 that adheres to the adhesive portion 60 so as to be peelable is formed on the one surface of the separate sheet 100. That is, the separate sheet 100 can be detachably adhered to the clothing side surface of the back sheet 30 by the adhesive section 60 and the release sheet section 150 formed on the separate sheet 100.

  As the release sheet portion 150, at least the contact surface with the adhesive portion 60 is peeled off, and polypropylene, polyester, polyethylene, polyvinyl alcohol or nonwoven fabric having a thickness of 5 μm to 50 μm, or a composite material thereof may be used. preferable. Examples of the release treatment include applying a release treatment agent to the entire surface of the release sheet 150 or attaching a release tape.

  As the release agent component of the release treatment agent or the release tape, a silicone resin type, a fluorine resin type or an octadecyl isocyanate type is preferable. In particular, in the release treatment, it is preferable to apply a silicone resin release material and heat dry it, or spray it with a spray to form a thin film. In view of the fact that the release sheet portion 150 also functions as a leak-proof function for the separate sheet 100 and a feeling of wearing (use feeling), a paper-based material is not preferable as the release sheet portion 150.

  The longitudinal direction of the separate sheet 100 is along the longitudinal direction L of the absorbent body 15. A part of the separate sheet 100 in the longitudinal direction has a separate sheet joint 120 (see FIGS. 2 and 5) joined to the absorbent body 15. Specifically, the separate sheet 100 is joined to the absorbent body 15 so that the separate sheet joining portion 120 can be deployed rearward of the absorbent body 15 with the separate sheet joining portion 120 as a base point. That is, in the separate sheet 100, the surface opposite to the surface of the separate sheet 100 facing the back sheet 30 is in contact with the wearer's skin when the separate sheet 100 is deployed.

  In addition, the back means the direction which becomes a wearer's hip side when the sanitary napkin 1 is worn. On the other hand, the front means a direction that becomes the wearer's ventral side when the sanitary napkin 1 is worn.

  The separate sheet joining portion 120 is formed inside the absorbent body 15 relative to the round seal portion 80, that is, closer to the center of the absorbent body 15 than the round seal portion 80. More specifically, the separate sheet joining portion 120 is formed inside the rear end portion 40a of the absorber 40.

  In addition, a male member 110a of a mechanical fastener 110 that is engaged with a rear portion (predetermined portion) of a crotch portion of clothing (underwear) is provided on the free end 100fe side of the separate sheet 100 as a base point with the separate sheet joint portion 120. It is done. As the mechanical fastener 110, a rib structure part formed integrally with a tape-like part extruded from a thermoplastic synthetic resin such as polypropylene is subjected to a treatment such as cutting or cutting, and a hook part (male) is formed on the surface of the tape-like part. A member on which the member 110a) is formed can be used. The cross-sectional shape of the hook part is not particularly limited, but it is preferable to round the top of the head part or to have a tapered shape in order to reduce the risk of damaging the wearer's skin.

The thickness T2 of the separate sheet 100 is thinner than the thickness T1 of the absorber 40 (see FIG. 3). That is, the absorption performance of the separate sheet 100 is lower than the absorption performance of the absorber 40. In addition, the thickness of the absorber 40 and the separate sheet 100 is obtained by sandwiching a portion to be measured by the thickness measuring instrument in a state where the thickness is extended to the product length and the product width (that is, a flat state so as not to cause wrinkles). taking measurement. As a usable measuring apparatus, for example, a PEACOCK thickness gauge (JB) can be used. The load at the time of thickness measurement is 2.8 g / cm ² (actual data, measured without a spring), and the disk of the thickness gauge has a diameter of 20 mm.

  Further, the width W2 of the separate sheet 100 along the intersecting direction W is greater than the width W1 of the narrowest portion of the absorber 40 along the intersecting direction W (the center position in the longitudinal direction L of the absorber 40 shown in FIG. 3). Is too narrow.

  The length of the separate sheet 100 in the longitudinal direction L is preferably 50% to 100%, more specifically 60% to 90% of the length of the sanitary napkin 1 in the longitudinal direction. If it is less than 50%, the adhesion area to the crotch portion of the underwear will be small, so the sanitary napkin 1 cannot be sufficiently adhered to the body side and may cause leakage. That is, since the adhesion area to the underwear of the separate sheet 100 is small, the separate sheet 100 is likely to be twisted or misaligned due to movement at the time of attachment. On the other hand, if it exceeds 100%, it will be longer than the sanitary napkin 1, which makes production very difficult.

  The width of the separate sheet 100 in the cross direction W is preferably 30% to 100%, more specifically 50% to 90% of the width of the sanitary napkin 1 in the cross direction W. If it is smaller than 30%, the adhesion area to the crotch portion of the underwear becomes small, which may cause leakage as described above. On the other hand, if it exceeds 100%, it becomes wider than the sanitary napkin 1, which makes production very difficult.

(2) Shape of absorbent article when separate sheet is deployed Next, with reference to FIGS. 6 and 7, the shape of sanitary napkin 1 (absorbent article) when the separate sheet 100 is deployed. explain. FIG. 6 is a plan view of the back side (clothing side) of the sanitary napkin 1 when the separate sheet 100 is deployed. FIG. 7 is a plan view of the surface side (skin contact surface side) of the sanitary napkin 1 when the separate sheet 100 is developed.

  As shown in FIGS. 6 and 7, the separate sheet 100 can be deployed rearward of the absorbent body 15 with the separate sheet joint 120 as a base point. Specifically, the release sheet portion 150 of the separate sheet 100 adhered to the adhesive portion 60 is peeled off from the adhesive portion 60, and the separate sheet 100 is attached to the sanitary napkin 1 with the separate sheet joining portion 120 as a base point. Can be deployed backwards.

  A male member 110a of the mechanical fastener 110 is provided on the free end 100fe side of the separate sheet 100, and the male member 110a is locked to a wearer's clothes (underwear).

  In this way, when the separate sheet 100 is deployed behind the sanitary napkin 1, the separate sheet 100 has hydrophilicity or liquid absorbability, and thus the area that absorbs body fluid such as menstrual blood by the sanitary napkin 1 Will increase.

  The sanitary napkin 1 according to the present embodiment includes a pair of wings 45. However, when the separate sheet 100 is not deployed, the sanitary napkin 1 is different from the pair of wings 45 (specifically, the adhesive portion 50). In order to avoid interference with the body sheet 100, the pair of wings 45 are folded back toward the top sheet 20, and the adhesive portion 50 formed on the pair of wings 45 is covered with a separate release sheet (not shown). Preferably.

  As described above, according to the sanitary napkin 1, the thickness T2 of the separate sheet 100 is thinner than the thickness T1 of the absorbent body 40, and the width W2 of the separate sheet 100 is along the intersecting direction W. Narrower than the width W1 of the absorber 40. The separate sheet 100 is independent from the absorber 40 as a separate body. For this reason, even if the sanitary napkin 1 is twisted after absorption of body fluids, the separate sheet 100 continues to be in close contact with the body and does not generate leakage from behind the sanitary napkin 1. Further, since the separate sheet 100 has a small area covering the body, the feeling of wearing is good, and stuffiness or the like hardly occurs.

  Further, since the separate sheet 100 is provided with the mechanical fastener 110, the separate sheet 100 is not easily peeled off from the clothes (underwear) even with various movements of the wearer, and the separate sheet 100 keeps in close contact with the body. After attaching the absorbent body 15 to the underwear using the adhesive portion 60, the adhesive portion 60 and the separate sheet 100 are used to further lock the mechanical fastener 110 to the underwear by pulling up the separate sheet 100 separately. The sanitary napkin 1 is sufficiently brought into close contact with the body due to the lifting effect of the sanitary napkin 1 by means of this, so that leakage of bodily fluids such as menstrual blood can be more reliably suppressed. In addition, even if the body fluid that could not be processed by the absorbent body 15 is transmitted to the body groove and flows backward (hip side), the separate sheet 100 is in close contact so as to protect the body groove, There is no leakage from around the thigh. That is, according to the sanitary napkin 1, it is possible to improve the wearing feeling of the wearer while reliably preventing leakage from the rear part of the sanitary napkin 1.

  In the case of absorbent articles such as sanitary napkins that abut from the excretion part of the wearer to the hip part, which is used when the usage time is long, such as when the amount of body fluid excreted is large or at night, In use at bedtime, the relatively viscous body fluid excreted from the excretion part of the wearer spreads to the hip part through the skin of the wearer, and leakage tends to occur in the rear part of the absorbent article. The cause of this leakage is that the absorbent article cannot adhere to the complex uneven shape of the wearer's body, a gap is formed between the absorbent article and the wearer's skin, and body fluid moves while passing through this gap It is. According to the sanitary napkin 1 according to the present embodiment, the separate sheet 100 is a sheet that is thinner than the absorbent body 40, and therefore can easily follow the movement of the body, and as described above, such a conventional absorbent article. Can solve the problems that have.

  Further, according to the sanitary napkin 1, the separate sheet 100 adheres to the back sheet 30 so as to be peelable, and the absorbent body can be deployed rearward from the absorbent body 15 with the separate sheet joint 120 as a base point. It is joined to the main body 15. Since the configuration is very simple in this way, mass production with a production machine is very easy. Furthermore, when the separate sheet 100 is not deployed, the size of the sanitary napkin 1 is compact, which is convenient for packaging and transportation.

  Furthermore, according to the sanitary napkin 1, since the wearer only has to peel off the separate sheet 100 from the back sheet 30 and fix it to the clothes, the sanitary napkin 1 can be easily attached. In addition, since the adhesive portion 60 and the mechanical fastener 110 are sufficiently firmly fixed to the clothes, the separate sheet 100 is peeled off from the clothes (underwear) even if a force that separates the sanitary napkin 1 from the clothes is applied. It is also suppressed. Furthermore, in the case of an adhesive, when the underwear is wet, there is a problem that the separate sheet 100 is difficult to adhere to the underwear. However, according to the mechanical fastener 110, the separate sheet 100 is surely secured even in such a case. Can be fixed to underwear.

(3) Other Embodiments As described above, the contents of the present invention have been disclosed through the embodiments of the present invention. However, it is understood that the description and drawings constituting a part of this disclosure limit the present invention. Should not. From this disclosure, various alternative embodiments, examples, and operational techniques will be apparent to those skilled in the art.

  For example, in the above-described embodiment, the separate sheet bonding portion 120 is formed inside the absorbent body 15 with respect to the rear end portion 40a of the absorber 40, but the separate sheet bonding portion 120 is not necessarily the absorber. For example, it may not be formed inside the absorbent body 15 from the rear end portion 40a of the 40, and may be formed inside the absorbent body 15 from the round seal portion 80, for example. Alternatively, the separate sheet joining portion 120 may be formed at a position overlapping the round seal portion 80 as long as it is inside the rear end of the absorbent body 15.

  In the above-described embodiment, the separate sheet 100 is provided with the mechanical fastener 110. However, the mechanical fastener 110 is not necessarily provided. In the above-described embodiment, the release sheet portion 150 is formed on the separate sheet 100. However, a separate release sheet may be interposed between the separate sheet 100 and the adhesive portion 60.

  In the embodiment described above, the width W2 of the separate sheet 100 was narrower than the width W1 of the absorber 40 along the intersecting direction W. However, as described above, the width W2 may be the same as the width W1. Good.

  In the embodiment described above, the pair of wings 45 is provided, but the pair of wings 45 may not necessarily be provided.

  In the embodiment described above, the separate sheet 100 is based on the separate sheet joint 120, and is located behind the absorbent main body, that is, in the direction that becomes the wearer's hip side when the sanitary napkin 1 is worn. Although the separate sheet 100 is configured to be deployable, the separate sheet 100 has the separate sheet joint 120 as a starting point and is positioned forward of the absorbent main body, that is, when the sanitary napkin is worn. You may be comprised so that it can expand | deploy in the direction used as a side. According to such a sanitary napkin 1, it is possible to suppress leakage of body fluid such as menstrual blood when the wearer goes to bed lying down. Even in this case, the shape of the sanitary napkin can be the same as the shape shown in FIGS. That is, the shape may be such that “front” and “back” shown in FIG.

  In the embodiment described above, the sanitary napkin 1 has been described as an example. However, the scope of application of the present invention is not limited to the sanitary napkin, and may be, for example, a panty liner (orimono sheet), an incontinence pad, or the like. .

  As described above, the present invention naturally includes various embodiments that are not described herein. Therefore, the technical scope of the present invention is defined only by the invention specifying matters according to the scope of claims reasonable from the above description.

1… Sanitary napkin
15 ... Absorber body
20 ... Surface sheet
30 ... Back sheet
40 ... absorber
40a… Rear end
45 ... Wing
50… Adhesive part
60… Adhesive part
80, 90… Round seal
100 ... Separate sheet
100fe ... free end
110 ... Mechanical fasteners
110a… Male member
120… Separate sheet joint
150 ... Release sheet

Claims (6)

Absorption having a cross direction perpendicular to the longitudinal direction and the longitudinal direction, including a liquid-permeable top sheet, a liquid-impermeable back sheet, and an absorber provided between the top sheet and the back sheet A vertically long absorbent article comprising a sex body,
On the clothing side surface of the back sheet, a vertically separate sheet that is separate from the absorber and has hydrophilicity is disposed so as to be peelable along the longitudinal direction,
One end part in the longitudinal direction of the separate sheet has a separate sheet joint part joined to the absorbent main body,
The thickness of the separate sheet is thinner than the thickness of the absorber,
The separate sheet can be developed rearward from the absorbent main body with the separate sheet joint as a base point, and the surface opposite to the surface of the separate sheet facing the back sheet is the separate sheet. An absorptive article formed so that a body sheet may be in contact with a wearer's skin in the state where it was developed. Absorption having a cross direction perpendicular to the longitudinal direction and the longitudinal direction, including a liquid-permeable top sheet, a liquid-impermeable back sheet, and an absorber provided between the top sheet and the back sheet A vertically long absorbent article comprising a sex body,
On the clothing side surface of the back sheet, a vertically separate sheet that is separate from the absorber and has hydrophilicity is disposed so as to be peelable along the longitudinal direction,
One end part in the longitudinal direction of the separate sheet has a separate sheet joint part joined to the absorbent main body,
The thickness of the separate sheet is thinner than the thickness of the absorber,
The separate sheet is expandable forward from the absorbent main body with the separate sheet joint as a base point, and the surface opposite to the surface of the separate sheet facing the back sheet is the separate sheet. An absorptive article formed so that a body sheet may be in contact with a wearer's skin in the state where it was developed.   The absorbent article according to claim 1 or 2, wherein a width of the separate sheet along the intersecting direction is narrower than a width of the absorbent body along the intersecting direction. On the clothing side surface of the back sheet, an adhesive part is formed to adhere the back sheet to a predetermined part of the clothes so as to be peelable,
The absorbent article according to claim 1 or 2, wherein a release sheet portion that is detachably adhered to the adhesive portion is formed on one surface of the separate sheet.   The absorbent article according to claim 4, wherein a male member of a mechanical fastener that is locked to a predetermined part of clothing is provided on a free end side of the separate sheet that is a base point of the separate sheet joint portion. The rear end portion of the absorbent main body is formed with a main body joining portion in which the topsheet and the backsheet are joined along the outer edge portion of the topsheet and the outer edge portion of the backsheet,
The absorbent article according to claim 1 or 2, wherein the separate sheet joint portion is formed inside the absorbent main body with respect to the main body joint portion.

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