JP4921337B2 - Absorbent articles - Google Patents

Description

  The present invention relates to an absorbent article used by being fixed to clothes such as underwear via an adhesive portion.

  Conventionally, as a sanitary napkin suitable for long-time use at bedtime or the like, a sanitary napkin provided with a wing portion at the front and a rear flap portion at the rear is known (see Patent Document 1). The napkin having such a configuration can be applied to the underwear via the adhesive portion disposed on the non-skin contact surface (the surface opposite to the surface facing the wearer's skin) of each of the wing portion and the rear flap portion. Used fixed.

In particular, the napkin described in Patent Document 1 has poor fixability to the underwear of the rear flap portion, and there is a problem that the rear flap portion is turned over or twisted during use, causing liquid leakage. In order to enhance the fixing property of the rear flap part, it is effective to bring the adhesive part for fixing the rear flap part as close as possible to the longitudinal side edge of the rear flap part. Is not described.
Further, based on the above knowledge, the rectangular adhesive portion for fixing the rear flap portion is brought close to the longitudinal side edge of the rear flap portion to the extent that the fixing ability to the underwear of the rear flap portion is sufficiently obtained. In the case of the napkin described in Patent Document 1, the top sheet and the back sheet are continuously heat-sealed over the entire periphery thereof, and the entire outer periphery of the napkin has a predetermined width. Therefore, the adhesive portion for fixing the rear flap portion is positioned on the seal portion. However, since the surface of the seal part usually has irregularities and is inferior in smoothness, the adhesive part located on the seal part is easily peeled off and cannot function as an adhesive part.
There has not yet been provided an absorptive article that is excellent in fixation to clothing and that can stably exhibit the liquid leakage effect of the rear flap portion.

JP-A-8-322879

  Accordingly, an object of the present invention is to provide an absorbent article excellent in fixation to clothes.

  The present invention includes a top sheet comprising a skin contact surface, a back sheet comprising a non-skin contact surface, and a vertically long body comprising an absorbent body disposed between both sheets, the top sheet and the back sheet. A part of the outer peripheral edge of the flap portion is formed by overlapping the topsheet and the backsheet. It is a non-heat-sealed part that is not joined by heat treatment, and the other part of the outer peripheral edge part is a heat-sealed part that is joined by heat treatment between both sheets, and the non-heat-sealed part in the flap part On the non-skin contact surface of the formation area of the heat seal part, a non-heat seal part adhesive part for fixing the flap part to clothing is disposed along the non-heat seal part, and the non-heat seal part adhesive part And extending along the outer peripheral edge of the non-heat-sealed portion from the end of the one heat-sealed portion adjacent to the non-heat-sealed portion along which the adhesive portion is located toward the end of the other heat-sealed portion. The above object is achieved by providing an absorbent article that is arranged so as to overlap with a virtual extension line of the heat seal portion.

  The absorptive article of the present invention is excellent in the fixation to clothes, and the back flap part can be stabilized and can exhibit the liquid leakage prevention effect.

  Hereinafter, the absorptive article of the present invention is explained based on the desirable embodiment with reference to drawings. FIG. 1 is a plan view showing a non-skin contact surface side of a sanitary napkin as one embodiment of the present invention, and FIG. 2 is a plan view showing a skin contact surface side of the sanitary napkin shown in FIG. 3 is a schematic cross-sectional view schematically showing a cross section taken along the line I-I shown in FIG. The skin contact surface is a surface directed toward the wearer's skin when the absorbent article is worn, and the non-skin contact surface is directed toward the underwear side (opposite to the wearer's skin) when the absorbent article is worn. It is the surface to be.

  The napkin 1 according to the first embodiment includes a top sheet 2 that forms a skin contact surface, a back sheet 3 that forms a non-skin contact surface, and a liquid-retaining longitudinal absorption disposed between both sheets 2 and 3. It has a vertically long main body 5 having a body 4 and a flap portion composed of a portion extending from the outer peripheral edge of the absorbent body 4 of the topsheet 2 and backsheet 3 and has a substantially vertically long shape. ing. The top sheet 2 is composed of a liquid permeable central sheet 2a and water-repellent side sheets 2b and 2b joined in a state of being partially overlapped on both the left and right sides in the longitudinal direction, and the central sheet 2a and the side sheets 2b Are joined by a joining line 2X extending in the longitudinal direction of the main body.

  The napkin 1 is arranged in order from the front end 1a in the longitudinal direction toward the rear end 1c, a front part A arranged at a position closer to the wearer's abdomen at the time of wearing, and an excretion part facing part disposed to face the liquid excretion part of the wearer. B and a rear portion C arranged at a position close to the wearer's back. The boundary between the excretory part facing part B and the rear part C in the first embodiment lies in the substantially central part of the napkin 1 in the longitudinal direction.

  As described above, the top sheet 2 and the back sheet 3 extend from the outer peripheral edge of the absorber 4 to form a flap portion. In the present embodiment, the top sheet 2 and the back sheet 3 have the same shape and substantially the same dimensions, and the both sheets 2 and 3 are overlapped at the flap portion. An outer peripheral edge portion of the flap portion forms an outline in a plan view of the napkin 1. The flap portion includes a pair of end flap portions extending outward from the longitudinal front and rear ends of the absorbent body 4 and a pair of side flap portions extending outward from the left and right side edges of the absorbent body 4 in the longitudinal direction. It consists of. The napkin 1 has a vertically long main body 5 at the center portion in the width direction, and has a pair of side flap portions on both left and right sides in the longitudinal direction of the main body 5.

  The flap portion has a pair of wing portions 6, 6 and a pair of rear flap portions 7, 7 extending on the left and right sides in the longitudinal direction of the main body 5, and the rear flap portion 7 is longer than the wing portion 8 in the main body longitudinal direction. Located behind. More specifically, the side flap portion protrudes greatly outward in the width direction of the napkin 1 at the excretory portion facing portion B, whereby a pair of wing portions 6, 6 are provided on the left and right sides of the main body 5. Is extended. In addition, the side flap portion projects greatly outward in the width direction of the napkin 1 also in the rear portion C located behind the excretory portion facing portion B. The rear flaps 7 and 7 are extended. Both the wing part 6 and the rear flap part 7 are part of the side flap part (flap part).

On the non-skin contact surface of the wing portion 6, a front adhesive portion 8 that fixes the wing portion 6 to clothing such as underwear is disposed. On the non-skin contact surface of the rear flap portion 7, the rear flap portion 7 A rear adhesive portion 9 is provided to fix the garment to the clothes. The front adhesive portion 8 and the rear adhesive portion 9 both have a vertically long rectangular shape, and are arranged such that the longitudinal direction thereof coincides with the longitudinal direction of the main body.
When the napkin 1 is fixed to the clothing, the wing portion 6 is folded back to the back sheet 3 side and is adhesively fixed to the non-skin contact surface of the clothing via the front adhesive portion 8. When the napkin 1 is fixed to the clothes, the rear flap portion 7 is not folded back to the main body 5 side, and the non-skin contact surface is widened (a state extended to the side of the main body 5). It is adhesively fixed on the skin contact surface of the clothing via the adhesive portion 9.
In addition, the main body longitudinal direction is a direction parallel to the direction along the long side of the vertically long main body 5, and the main body width direction is a direction orthogonal to the main body longitudinal direction.

A part of the outer peripheral edge of the flap (the outer peripheral edge of the napkin 1) is non-heated, as shown in FIGS. 1 and 2, in which the overlapping topsheet 2 and backsheet 3 are not joined by heat treatment. The other portion of the outer peripheral edge portion is a heat seal portion 20 in which the sheets 2 and 3 are joined by heat treatment.
In 1st Embodiment, a part of outer peripheral part of each of a pair of rear part flap parts 7 and 7 which is a part of said side flap part is the non-heat-sealing part 21, and the outer periphery of the said side flap part The other part of the part and the outer peripheral edge of the end flap part are the heat seal part 20.

  The heat seal portion 20 is a portion in which at least one of the top sheet 2 and the back sheet 3 that overlap each other is melted by heat treatment and has adhesiveness, and the sheets 2 and 3 are joined by the adhesive force of the sheet itself. . Therefore, the heat seal part 20 does not contain any other adhesive component other than the two sheets 2 and 3 such as an adhesive. The heat treatment can be performed, for example, according to a known heat sealing method.

  On the other hand, the non-heat seal portion 21 is a portion where the overlapping top sheet 2 and back sheet 3 are joined without using the heat treatment (heat seal method). , 3 are bonded via an adhesive component such as an adhesive. Such a configuration of the non-heat seal portion 21 is that the non-heat seal portion 21 is formed in a portion where the force acting on the napkin is small when the napkin is worn, and is formed between the seal portions having high strength against peeling. Designed as a premise. The non-heat seal part 21 is the same as the heat seal part 20 in that the top sheet 2 and the back sheet 3 that are overlapped are joined, but is different from the heat seal part 20 in that it includes an adhesive component. The non-heat seal part 21 is, for example, a method in which a hot-melt adhesive is applied to the top sheet 2 and / or the back sheet 3 in a spiral shape, a bead shape, a film shape, or the like; It can be formed by a method in which a film material having a melting temperature lower than that of both sheets 2 and 3 is disposed between the back sheet 3 and the film material is fused to both sheets 2 and 3.

  In addition, the heat seal part 20 is usually non-heated while embossing or the like is imparted to its front and back surfaces for the purpose of preventing peeling of the seal part or reducing hardness when using a napkin. As described above, since the sealing portion 21 is bonded and fixed between sheets of an adhesive material, the front and back surfaces are not given any uneven shape, or only a very fine uneven shape is given, and the front and back surfaces are substantially Flat. Therefore, in the outer peripheral edge portion of the flap portion, when the concave and convex shapes are given to the outer surfaces of the top sheet 2 and the back sheet 3 that are bonded to each other, the concave and convex portion is the heat seal portion 20, A portion where the front and back surfaces of the peripheral edge portion are substantially flat is the non-heat seal portion 21.

  As one of the features of the present invention, as shown in FIGS. 1 and 4, on the non-skin contact surface of the formation region of the non-heat seal portion 21 in the flap portion, along the non-heat seal portion 21, A non-heat seal portion adhesive portion for fixing the flap portion to clothing such as underwear is disposed, and this non-heat seal portion adhesive portion is adjacent to the non-heat seal portion 21 along which the non-heat seal portion adhesive portion is located. It overlaps with the virtual extension line 22 of the heat seal part 20 that extends along the outer peripheral edge of the non-heat seal part 21 from the end part (seal end part) 20a of the heat seal part 20 toward the other seal end part 20b. It is mentioned that it is arranged. In the first embodiment, the rear adhesive portion 9 disposed in the rear flap portion 7 is the non-heat seal portion adhesive portion disposed along the non-heat seal portion 21 of the rear flap portion 7.

  In this way, a part of the outer peripheral edge of the napkin 1 is used as the non-heat seal portion 21, and the rear adhesive portion 9 is arranged so as to overlap the virtual extension line 22 of the heat seal portion 20 along the non-heat seal portion 21. As a result, the fixation of the outer peripheral edge portion of the rear flap portion 7 that tends to be a starting point of turning and twisting of the rear flap portion 7 when the napkin 1 is worn increases, and the liquid leakage prevention effect by the rear flap portion 7 is stably provided. It can be demonstrated. Further, as described above, since the outer surface of the non-heat seal portion 21 is substantially flat and has no unevenness, the rear adhesive portion 9 is firmly fixed to the outer surface, and the rear flap portion 7. Hard to peel off. On the other hand, when the adhesive portion is disposed on the outer surface of the heat seal portion 20 having the unevenness on the outer surface, the adhesive force of the adhesive portion to the outer surface is reduced, so that the adhesive portion is attached to the outer surface when the napkin is worn. There is a risk of peeling from.

  The virtual extension line 22 is a region sandwiched between these two extension lines when the inner peripheral edge 20s and the outer peripheral edge 20t of the heat seal part 20 are extended along the outer peripheral edge of the non-heat seal part 21, respectively. . Therefore, the width of the virtual extension line 22 is equal to the shortest distance between these two extension lines.

  At least a part of the non-heat seal portion adhesive portion (rear adhesive portion 9) from the viewpoint of further improving the fixing property of the rear flap portion 7 to the clothes is the outer periphery of the napkin 1 (in this embodiment, the heat seal portion 20). The same as the outer peripheral edge 20t) is preferably within 5 mm in the width direction of the main body and within the width of the virtual extension line 22, and preferably within 3 mm and within the width of the virtual extension line 22. More preferably.

  Further, the shortest distance between the non-heat seal portion adhesive portion (rear adhesive portion 9) and each of the seal end portions 20a and 20b adjacent to the non-heat seal portion 21 where the non-heat seal portion adhesive portion is disposed. La and Lb are each preferably 3 mm or more, more preferably 1 to 2 mm, from the viewpoint of minimizing the non-adhesive surface between the top sheet 2 and the back sheet 3. The shortest distances La and Lb may be the same or different.

  The length L of the non-heat seal portion 21 along the longitudinal direction of the main body is preferably 10 to the length of the napkin 1 along the longitudinal direction of the main body (the shortest distance between the front end 1a and the rear end 1c). 17%, more preferably 12 to 15%. The length L is preferably 20 to 60 mm, more preferably 35 to 50 mm.

  In the first embodiment, in addition to the configuration of the rear flap portion 7 as described above, there is a rear adhesive portion 9 on a virtual straight line Y1 that bisects the front adhesive portion 8 in the body width direction. . As described above, since the front adhesive portion 8 and the rear adhesive portion 9 are on the same straight line along the longitudinal direction of the main body, when the napkin 1 is manufactured, the coating (transfer) of both the adhesive portions 8 and 9 is performed one time. This makes it possible to use a single coating facility in one operation, increasing the productivity of napkins.

From the viewpoint of making the above-described effect (improvement of productivity) more reliable, a virtual straight line Y1 that bisects the front adhesive portion 8 in the body width direction and a virtual that bisects the rear adhesive portion 9 in the body width direction. The shortest distance from the straight line Y2, that is, the shift amount in the main body width direction of both virtual straight lines Y1 and Y2, is preferably within 7 mm, and more preferably within 5 mm. In the first embodiment, the shortest distance between the virtual lines Y1 and Y2 is 0 mm.
Further, from the viewpoint of further improving productivity and fixing of the napkin to clothes, the tangent line Y3 of the side edge near the outer peripheral edge of the napkin 1 in the front adhesive portion 8 and the outside of the napkin 1 in the rear adhesive portion 9 are used. The shortest distance between the tangent line Y4 on the side edge closer to the peripheral edge, that is, the amount of deviation in the body width direction of both tangent lines Y3 and Y4 is preferably within 7 mm, more preferably within 5 mm. In the first embodiment, the shortest distance between both tangent lines Y3 and Y4 is 0 mm.

  In 1st Embodiment, the non-heat-sealing part 21 is not distribute | arranged to the wing part 6, and it covers the perimeter of the outer periphery part of the site | part (excretion part opposing part B) in which a pair of wing parts 6 and 6 exist. The heat seal part 20 is arranged. The width of the heat seal portion 20 stabilizes the bonding strength between the sheets 2 and 3 by preventing the occurrence of breakage or the like when the front sheet 2 and the back sheet 3 are bonded by heat treatment (heat sealing method). At the same time, the thickness is preferably 2 to 7 mm, more preferably 4 to 6 mm, from the viewpoint of preventing the heat seal portion 20 from being hardened due to the improvement in bonding strength per unit width of the heat seal portion 20. Moreover, the heat seal part 20 in the wing part 6 also has an effect of functioning as a handle (a grip part when gripping the wing part 6) when the wing part 6 is fixed to underwear such as shorts or removed from the underwear. Have.

  In the first embodiment, as shown in FIG. 1, a main body adhesive portion 10 that fixes the main body 5 to clothing is arranged on the non-skin contact surface of the main body 5 along the main body longitudinal direction. The main body adhesive portion 10 has a vertically long rectangular shape, and is arranged at the center in the width direction of the main body 5 with its longitudinal direction coinciding with the longitudinal direction of the main body. The length in the longitudinal direction of the main body adhesive portion 10 is preferably 60 to 90% with respect to the total length in the longitudinal direction of the napkin 1, and the length in the width direction of the main body adhesive portion 10 is in the width direction of the absorbent body 4. The length (maximum width) is preferably 50 to 80%.

  It is preferable that the end portion of the main body adhesive portion 10 near the napkin rear end 1c and the end portion of the rear adhesive portion 9 near the napkin rear end 1c are substantially in the same position in the main body longitudinal direction. Here, “substantially in the same position” means tangent lines X9, X10 parallel to the body width direction with respect to the rear ends 9c, 10c of the rear adhesive portion 9 and the main body adhesive portion 10 near the napkin rear end 1c. Is the shortest distance between these tangent lines X9 and X10, that is, the amount of deviation of the tangent lines X9 and X10 in the longitudinal direction of the main body is within 5 mm.

  As described above, the rear end 9c of the rear adhesive portion 9 and the rear end 10c of the main body adhesive portion 10 are substantially in the same position in the longitudinal direction of the main body, thereby improving the fixability of the napkin 1 to clothes and being used. Will be less likely to be twisted or displaced. If the rear end 9c of the rear adhesive portion 9 is located behind the rear end 10c of the main body adhesive portion 10 by a predetermined distance or more, the main body 5 may be twisted or displaced when the napkin 1 is worn. If the rear end 9c of the part 9 is in front of the main body adhesive part 10 at a predetermined distance from the rear end 10c, the fixability to the underwear of the rear flap part 7 may be lowered.

  As the top sheet 2 constituting the skin contact surface, the back sheet 3 constituting the non-skin contact surface, and the absorbent body 4, various types conventionally used in the technical field can be used without particular limitation. . As the surface sheet 2, various liquid-permeable sheet materials, such as a nonwoven fabric and an apertured film, can be used, for example. The back sheet 3 may be liquid-impermeable or liquid-permeable, for example, a resin film that does not have moisture permeability, a resin film that has micropores and has moisture permeability, a nonwoven fabric such as a water-repellent nonwoven fabric, and the like. A laminate with this sheet can be used. As the absorbent body 4, a fiber assembly made of hydrophilic fibers such as defibrated pulp, or a structure in which a superabsorbent polymer is held thereon can be used. Moreover, as a pressure-sensitive adhesive for forming the pressure-sensitive adhesive portions 8, 9, and 10, for example, a hot melt adhesive can be used.

The napkin 1 according to the first embodiment is used by being fixed to an undergarment through an adhesive portion in the same manner as this type of sanitary napkin having a wing portion and a rear flap portion.
According to the napkin 1 of 1st Embodiment, the back adhesion part 9 (non-heat seal part adhesion part) which fixes the rear flap part 7 to clothes is a virtual extension line of the heat seal part 20 along the non-heat seal part 21. 22 is arranged so as to overlap with the rear flap portion 7 and the clothes are firmly fixed via the back adhesive portion 9, and the rear flap portion 7 is effectively prevented from being turned or twisted. As a result, liquid leakage from the back of the body is effectively prevented. Further, the rear adhesive portion 9 has poor surface smoothness, and this type of adhesive portion does not overlap with the heat seal portion 20 which is difficult to adhere, and is adhered to the rear flap portion 7 with sufficient adhesive force. There is little possibility that peeling occurs between the rear adhesive portion 9 and the rear flap portion 7.
Further, as described above, when the rear adhesive portion 9 is arranged on the virtual straight line Y1 that bisects the front adhesive portion 8 in the body width direction, the coating (transfer) process of both adhesive portions 8 and 9 is simplified. To improve productivity.

  FIG. 5 shows a view corresponding to FIG. 1 of the second embodiment of the present invention (a plan view showing a surface on the back sheet side of the sanitary napkin). In the second embodiment, components different from those of the first embodiment described above will be mainly described, and components similar to those of the first embodiment will be denoted by the same reference numerals and description thereof will be omitted. The description of the first embodiment described above is applied as appropriate to components that are not particularly described in the second embodiment.

The longitudinal rear end 1c in the first embodiment described above is convexly curved outward in the longitudinal direction of the napkin 1 in plan view (see FIG. 1), whereas the second embodiment shown in FIG. The shape of the rear end 1c in the longitudinal direction of the napkin 1 in a plan view is a straight line that is substantially parallel to the main body width direction. As shown in FIG. 5, such a configuration in the second embodiment has an end portion 10 c near the rear end 1 c of the main body adhesive portion 10 and an end portion 9 c near the rear end 1 c of the rear adhesive portion 9 in the longitudinal direction of the main body. While having the effect that it is easy to make it the same position, there exists an effect that the back adhesion part 9 is easy to arrange | position close to the rear end 1c. By arranging the rear adhesive portion 9 close to the rear end 1c, the adhesiveness to the underwear of the rear flap portion 7 is further enhanced.
Further, in the second embodiment, a plurality of (two in FIG. 5) main body adhesive portions 10 having a rectangular shape are arranged at predetermined intervals in the main body width direction with the longitudinal direction thereof aligned with the main body longitudinal direction. Yes.
According to the second embodiment, the same effect as that of the first embodiment can be obtained.

As mentioned above, although this invention was demonstrated based on the preferable embodiment, this invention is not restrict | limited to the said embodiment.
For example, in the embodiment, the non-heat seal portion 21 is not disposed on the wing portion 6 and the front adhesive portion 8 disposed on the wing portion 6 is not the non-heat seal portion adhesive portion. The adhesive portion 8 may be the non-heat seal portion adhesive portion. That is, in the said embodiment, it replaces with the back adhesion part 9 as the said non-heat seal part adhesion part, and the front adhesion part 8 is good also as the said non-heat seal part adhesion part, and the front adhesion part 8 and back Both of the adhesive portions 9 may be the non-heat seal portion adhesive portion. When the front adhesive portion 8 is the non-heat seal portion adhesive portion, the front adhesive portion 8 (non-heat seal portion adhesive portion) substantially corresponds to the width of the heat seal portion 20 from the longitudinal side edge of the main body of the wing portion 6. Preferably, they are formed at positions separated by a distance. This separation distance can function as a handle (gripping part) when gripping the wing part 6.

  Further, a non-heat seal portion 21 is arranged on the end flap portion (a flap portion extending outward from the longitudinal front and rear ends of the absorber 4), and the virtual seal of the heat seal portion 20 is provided along the non-heat seal portion 21. The non-heat seal portion adhesive portion may be disposed so as to overlap the extension line 22.

Moreover, in the said embodiment, although the surface sheet 2 consisted of the center sheet | seat 2a and the side part sheet | seats 2b and 2b joined in the state which overlapped with the longitudinal direction left and right both sides, A top sheet made of a continuous sheet may be used. In short, any surface sheet may be used as long as it can constitute the skin contact surface of the sanitary napkin.
Moreover, although the sanitary napkin was mentioned as one of the application examples of the absorbent article of this invention, For example, it can apply also to a panty liner, a light incontinence liner, etc.
All the parts of only the one embodiment described above can be used together as appropriate.

FIG. 1 is a plan view showing a surface (non-skin contact surface) on the back sheet side of a sanitary napkin according to a first embodiment of the present invention. FIG. 2 is a plan view showing a surface (skin contact surface) of the sanitary napkin shown in FIG. 1 on the surface sheet side. FIG. 3 is a schematic cross-sectional view schematically showing a cross section taken along line II shown in FIG. FIG. 4 is an enlarged plan view showing an essential part (non-seal part) of FIG. 1 in an enlarged manner. FIG. 5 is a view corresponding to FIG. 1 of the second embodiment of the present invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Sanitary napkin 2 Top sheet 3 Back sheet 4 Absorber 5 Main body 6 Wing part 7 Rear flap part 8 Front adhesion part 9 Back adhesion part (non-heat seal part adhesion part)
DESCRIPTION OF SYMBOLS 10 Main body adhesion part 20 Heat seal part 20a, 20b End part (seal end part) of heat seal part
21 Non-heat seal part 22 Virtual extension line A of heat seal part Front part B Excretion part opposing part C Rear part Y1 Virtual straight line which bisects the front adhesive part in the body width direction

Claims (5)

Longitudinal main body comprising a front sheet constituting a skin contact surface, a back sheet constituting a non-skin contact surface, and an absorber disposed between both sheets, and the top sheet and the absorber of the back sheet An absorbent article having a flap portion composed of an extended portion from the outer peripheral edge of the
A part of the outer peripheral edge part of the flap part is a non-heat seal part where the overlapping top sheet and back sheet are not joined by heat treatment, and the other part of the outer peripheral part is both It is a heat seal part where the sheets are joined by heat treatment,
On the non-skin contact surface of the formation area of the non-heat seal part in the flap part, a non-heat seal part adhesive part for fixing the flap part to clothing is disposed along the non-heat seal part,
The non-heat seal portion adhesive portion is formed from the end portion of one of the heat seal portions adjacent to the non-heat seal portion along which the adhesive portion is located toward the end portion of the other heat seal portion. An absorbent article that extends along the outer peripheral edge of the heat seal portion and overlaps with a virtual extension line of the heat seal portion. The flap portion has a pair of wing portions and a pair of rear flap portions extending on the left and right sides in the longitudinal direction of the main body, and the rear flap portion is located rearward in the main body longitudinal direction with respect to the wing portion. ,
A front adhesive portion that fixes the wing portion to the clothing is disposed on the non-skin contact surface of the wing portion, and a rear side that fixes the rear flap portion to the clothing on the non-skin contact surface of the rear flap portion Adhesive part is arranged,
At least a part of the outer peripheral edge portion of the rear flap portion is the non-heat seal portion, and the rear adhesive portion is the non-heat seal portion adhesive disposed along the non-heat seal portion of the rear flap portion. The absorbent article according to claim 1, which is a part.   The absorptivity according to claim 1 or 2, wherein a shortest distance between the non-heat seal portion adhesive portion and an end portion of the heat seal portion adjacent to the non-heat seal portion along which the adhesive portion is along is 3 mm or more. Goods.   The absorptive article according to claim 2 or 3 with which said back adhesion part exists on an imaginary straight line which bisects said front adhesion part in the body width direction.   A main body adhesive portion for fixing the main body to clothing is disposed on the non-skin contact surface of the main body along the longitudinal direction of the main body, and a rear end portion of the main body adhesive portion near the rear end of the absorbent article, The absorbent article according to any one of claims 2 to 4, wherein a rear end portion of the rear adhesive portion near the rear end of the absorbent article is substantially in the same position in the longitudinal direction of the main body.

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