TW201938125A - Absorbent article - Google Patents

Abstract

Provided is an absorbent article with which it is possible to suppress discomfort when worn and which can be cleanly discarded using a post-processing tape portion for discarding. The absorbent article (10) comprises: a body region (RA) in which a surface sheet (21), a back sheet (22), and an absorbing core (23) are overlapped; and an extending region (RB) which extends beyond an outer edge of the absorbing core and in which at least the surface sheet and the back sheet are arranged. The extending region has a tape portion (80) which is configured to be foldable so that a non-skin-opposing surface faces a skin-opposing-surface side of the absorbent article, and a non-tape portion (81) that does not constitute the tape portion. The non-skin-opposing surface of the tape portion is configured to be fixedly attachable to at least one of the non-skin-opposing surface in the body region and the non-skin-opposing surface in the non-tape portion.

Description

Absorbent article

The present invention relates to an absorbent article having a post-processing belt portion.

Patent Documents 1 and 2 disclose absorbent articles such as disposable diapers, sanitary napkins, and the like provided with a post-treatment tape portion. The absorbent article of patent document 1 has an adhesive part which fixes an absorbent article to a wearing article, and the back sheet provided with this adhesive part, and a part of back sheet is comprised so that it may peel. When the user wants to discard the absorbent article, the user folds the absorbent article and fixes the peeled part (belt portion) to the adhesive portion, and fixes the absorbent article in a rounded state with the belt portion.

Moreover, the absorbent article of patent document 2 has the adhesive part which fixes an absorbent article to a wearing article, and the back sheet provided with the said adhesive part, and a part of back sheet is extended more outwards in the front-back direction than a sanitary napkin absorbent surface. A band portion for fixing the absorbent article in a rounded state is provided on the absorption surface side of the extended portion.
[Prior technical literature]
[Patent Literature]

[Patent Document 1] Japanese Publication No. 4-114317
[Patent Document 2] Japanese Publication No. 4-35422

The belt part described in patent document 1 is comprised by the peelable part of a back sheet, and this peelable part is superimposed on an absorber. Therefore, in a state where the belt portion has been peeled off, body fluid may leak from the absorbent body, the absorbent material may leak, and the absorbent article may not be cleanly discarded.

Moreover, the band part of patent document 2 is provided in the absorption surface side of the part extended more than the absorption surface of a sanitary napkin. Therefore, the belt portion may come into contact with the skin of the wearer when the absorbent article is worn, which may cause uncomfortable wear.

Therefore, an absorbent article that can suppress discomfort at the time of wear and that is cleanly discarded by a post-treatment belt portion at the time of disposal is desired.

An aspect of the absorbent article has a front-rear direction; a width direction orthogonal to the aforementioned front-rear direction; a body region where the surface sheet, the back sheet, and the absorbent core material overlap; and an extension of the outer edge of the absorbent core material and at least The extension region of the front sheet and the back sheet is disposed, and the extension region is provided with a belt portion that can turn the non-skin facing surface back to a skin facing surface facing the absorbent article; and does not constitute the foregoing The non-belt portion of the belt portion, the non-skin facing surface of the belt portion is configured as at least one of a non-skin facing surface that can be fixedly mounted on the body region and a non-skin facing surface of the non-belt portion.

(1) Outline of the embodiment At least the following matters can be made clearer based on the description in this specification and the drawings.

An aspect of the absorbent article has a front-rear direction; a width direction orthogonal to the aforementioned front-rear direction; a body region where the surface sheet, the back sheet, and the absorbent core material overlap; and an extension of the outer edge of the absorbent core material and at least The extension region of the front sheet and the back sheet is disposed, and the extension region is provided with a belt portion that can turn the non-skin facing surface back to a skin facing surface facing the absorbent article; and does not constitute the foregoing The non-belt portion of the belt portion, the non-skin facing surface of the belt portion is configured as at least one of a non-skin facing surface that can be fixedly mounted on the body region and a non-skin facing surface of the non-belt portion.

When a user disposes, the skin-facing surface of the absorbent article is turned into the inside, and the absorbent article is folded back in a state where the absorbent article is rounded, so that the non-skin-facing surface of the belt may face the absorbent. The skin-facing side of the article (the inner side of the rounded state). By arranging the belt portion on the outside of the rounded portion, the non-skin-facing surface of the rounded portion and the non-skin-facing surface of the belt portion can be arranged to face each other. By fixing the belt portion to the main body region or the non-belt portion, the absorbent article can be rounded and fixed by the belt portion.

The belt portion is provided in an extension region extending more than the absorbent core material. Therefore, the belt portion does not directly affect the absorbent core material, and it is possible to suppress leakage of body fluid from the absorbent core material, overflow of the absorbent material, and the like. In addition, the fixed mounting surface (back sheet) of the belt portion is not intended to face the wearer's skin during use. Therefore, when the absorbent article is worn, it is possible to suppress the discomfort caused by the fixed mounting surface of the belt portion coming into contact with the skin of the wearer. Therefore, it is desirable to suppress the discomfort at the time of wearing, and to discard it cleanly by the post-processing belt portion at the time of disposal.

According to an ideal aspect, in the extension region, a tear portion extending in a direction from an outer edge of the absorbent article to an inside of the absorbent article is provided.

By partially tearing the extension area by the tear portion, the torn portion can be used as a band portion.

According to an ideal aspect, the tear portion extends from an outer end located on the outer edge of the absorbent article to an inner end edge located on the inner side of the absorbent article, and the inner end edge ends in the extended region. .

The torn portion ends in the extended region and does not reach the body region where the absorbent core material is arranged. Therefore, even if the entire area of the tear portion is cut, the belt portion does not directly affect the absorbent core material, and it is possible to suppress leakage of body fluid from the absorbent core material, overflow of the absorbent material, and the like.

According to an ideal aspect, a pair of the tearing portions are provided, and the pair of tearing portions are disposed at intervals in an orthogonal direction orthogonal to an extending direction in which the tearing portion extends.

By partially tearing the extension area by the tear portion, the portion held by the pair of tear portions can be used as a band portion.

According to an ideal aspect, the tear portion extends from a first outer end edge located on an outer edge of the absorbent article to a second outer end edge located on an outer edge of the absorbent article.

By tearing with the tear portion, the belt portion can be cut from the non-belt portion. Therefore, there are few restrictions on the mounting position of the belt portion when discarded, and the belt portion can be fixed to a place where the absorbent article can be easily mounted in a state where the absorbent article is rounded.

According to an ideal aspect, at least one of the front sheet and the back sheet of the extension region is a sheet material including fibers, and the tear portion is along an orientation direction of the fibers.

According to such a configuration, when the cutting is performed by the tear portion, the tear portion easily extends along the orientation of the fiber, and it is easy to dispose the belt portion and discard it.

According to an ideal aspect, the extended region is provided with a hip flap located more rearward than a center in the front-back direction of the absorbent article, and the tear portion is provided on the hip flap.

Hip flaps are set to cover the sides of the buttocks, and body fluids are not easily attached directly. By providing a tear portion in the hip flap, when the extended area is torn by the tear portion, the body fluid can be prevented from adhering to the hand.

According to an ideal aspect, the extension region has a convex portion protruding toward the outside of the absorbent article, and the belt portion is constituted by the convex portion.

The convex portion is a portion that protrudes toward the outside of the absorbent article in the extended area, and is easily folded back to the area adjacent to the convex portion. The user can fix the belt portion to the body region or the extended region by folding the convex portion back, and the absorbent article can be rounded and fixed by the belt portion.

According to an ideal aspect, the convex portion has a reduced diameter portion in which the width of the convex portion is made shorter.

The reduced-diameter portion easily becomes a base point for turning back when the belt portion is turned back. It becomes easy for a user to turn back the belt part by a convex part.

According to an ideal aspect, a tear portion extending in a direction connecting the root and base portions of the convex portions is formed in the extension region.

By tearing with the tear portion, the distance between the root and base portions of the band portion can be shortened. The base portion of the convex portion is a portion that becomes a base point and twists when the band portion is folded back. By shortening the distance between the root and base portions, the twisted area becomes shorter when the belt portion is turned back, and it becomes easier to turn back. Moreover, a tear part is provided so that a base part may be connected, and a band part can be cut | disconnected. Therefore, there are few restrictions on the mounting position of the belt portion when discarded, and the belt portion can be fixed to a place where the absorbent article can be easily mounted in a state where the absorbent article is rounded.

According to an ideal aspect, the protruding length of the protrusions is longer than the distance connecting the roots and bases of the protrusions.

The base portion of the convex portion is a portion that becomes a base point when the band portion is folded back and is twisted or torn. Since the distance connecting the root portions is short, the area to be twisted or the area torn by the tear portion becomes shorter when the belt portion is folded back, making it easier to use the belt portion.

According to an ideal aspect, the non-skin facing surface side of the belt portion is provided with an adhesive portion for fixing the absorbent article to a wearing article.

The adhesive portion of the belt portion is used to fix the belt portion to the main body region or the extended region, thereby maintaining the state in which the absorbent article is rounded.

According to an ideal aspect, there is an adhesive portion for fixing the absorbent article to the wearing article, and the adhesive portion is disposed on the non-skin facing surface side of the absorbent article and is not disposed on the absorbent article. Face facing the side.

Since the adhesive part is not arrange | positioned on the skin facing surface side of an absorbent article, an adhesive part will not face the skin at the time of wearing. Therefore, it is possible to suppress the discomfort caused by the adhesive portion of the absorbent article coming into contact with the skin of the wearer.

According to an ideal aspect, the belt portion is provided closer to the outer side of the front-rear direction than the body region.

When the absorbent article is rounded in the front-rear direction, the outer edge of the front-back direction of the absorbent core material is exposed on the surface after being rounded. Since the belt portion is arranged at the exposed portion, the user can easily recognize the belt portion and can maintain the state in which the absorbent article is rounded by the belt portion.

(2) Structure of Absorbent Article Hereinafter, an absorbent article according to an embodiment will be described with reference to the drawings. The absorbent article may be an absorbent article such as a sanitary napkin, a pad, a breast milk pad, an incontinence pad for adults, a fecal pad, or a sweat-absorbent sheet. The absorbent article may be an article used by being mounted on the inside of a wearing article such as underwear.

In the following drawings, the same or similar parts are assigned the same or similar symbols. However, the drawing is for illustration, please note that the ratio of each size may be different from the real thing. Therefore, specific dimensions and the like should be judged with reference to the following description. In addition, there may be cases where the drawings are different from each other in terms of dimensional relationships, ratios, and the like.

FIG. 1 is a plan view of the absorbent article 10 according to the first embodiment as viewed from the skin-facing side. FIG. 2 is a plan view of the absorbent article 10 according to the first embodiment as viewed from the non-skin-facing side. Here, the "skin-facing side" corresponds to the side of the skin facing the wearer during use. [Non-skin-facing side] corresponds to the side facing the wearer's skin during use. Fig. 3 is a perspective view of the absorbent article in a state after being wound in the front-rear direction.

The absorbent article 10 has a front-back direction L and a width direction W. The front-rear direction L refers to a direction extending from the front side (abdominal side) of the wearer to the back side (back side), or a direction extending from the back side of the wearer to the front side. The width direction W is a direction orthogonal to the front-rear direction L.

The absorbent article 10 includes a surface sheet 21 facing the wearer's skin, a back surface sheet 22 facing the wearer's skin on the opposite side, and an absorbent core material 23 disposed between the surface sheet 21 and the back sheet 22. The surface sheet 21 faces the skin of the wearer during use. The back sheet 22 faces the wearer's skin on the opposite side during use. The absorbent core material 23 is an absorbent material containing an absorbent body fluid, and it extends along the front-back direction L of an absorbent article. At least one of the front sheet and the back sheet may be a sheet material containing fibers. Moreover, at least a part of the non-skin-facing surface of the back sheet may function as a band portion, or may be formed of a film.

The absorbent article 10 has: a body region RA where the top sheet 21, the back sheet 22, and the absorbent core material 23 overlap; and an outer edge extending beyond the outer edge of the absorbent core material 23, and at least the top sheet 21 and the back sheet 22 are arranged The extended area RB. The main body region RA may be located at the center of the absorbent article 10 in the width direction W and at the center of the absorbent article 10 in the front-rear direction L. The extension region RB may be located further outside than the outer edge of the body region RA. In the extension region RB, the absorbent core material 23 in the main body region RA may not be arranged. In FIG. 2, the main body region RA and the extended region RB are shown with different oblique lines. Further, the extension region RB may partially have an absorption portion different from the absorption core material 23 of the main body region RA. In this case, the absorbent core material 23 of the main body region RA and the absorbent portion of the extended region RB are separated from each other and do not communicate with each other. In addition, it is preferable that the absorption portion is separated from the tear portion described later and is not connected.

The surface sheet 21 may be constituted by a single sheet provided on the entire absorbent article including the main body region RA and the extended region RB, or may be formed by the first surface sheet and the first sheet disposed in the main body region RA. A composite sheet formed on the second surface sheet of the extended region RB. In this case, it is preferable that the first surface sheet is a hydrophilic fiber, and the second surface sheet is preferably water-repellent. The first surface sheet ensures the aspiration of body fluids. In addition, the body fluid does not easily adhere to the second surface sheet, so that the belt portion 80 is less likely to be soiled. That is, it is preferable that the surface sheet of at least the belt portion 80 disposed in the extension region RB has water repellency.

The absorbent article 10 may include a flap 40 and a hip flap 50. The flap 40 is folded back toward the non-skin-facing side of the crotch portion of the wearing article when in use. The hip flaps 50 are located behind the flaps 40 and swell in the width direction W. The hip flap 50 is a part which swells in the width direction W toward the outer side than the outer edge of the absorbent core material 23. At least a part of the hip flaps 50 is located more rearward than the center in the front-rear direction of the absorbent article 10. The flaps 40 and the hip flaps 50 may be provided in the extension region RB.

The absorbent article 10 has an excretory opening facing area S1 facing the excretory opening (for example, the vaginal opening) of the wearer during use. The excretory opening facing region S1 is a region arranged under the wearer's crotch, that is, a region arranged between the feet of the wearer, and corresponds to a region where the absorbent core material 23 exists. Furthermore, in the absorbent article 10 having the flaps 40, the excretory opening facing area S1 is the area between the flaps 40, which corresponds to the area where the absorbent core material 23 exists.

As shown in FIG. 2, the absorbent article 10 includes adhesive portions 42, 52, and 70 provided on the non-skin facing surface side of the back sheet 22. The adhesive portions 42, 52, and 70 are regions provided with an adhesive for fixing the absorbent article 10 to a wearing article. The adhesive part includes: a main body adhesive part 70, a flap adhesive part 42 and a flap adhesive part 52. The adhesive portion may be disposed on the non-skin facing surface side of the absorbent article, and may not be disposed on the skin facing surface side of the absorbent article. Since the adhesive part is not arrange | positioned on the skin facing surface side of an absorbent article, an adhesive part will not face the skin at the time of wearing. Therefore, it is possible to suppress the discomfort caused by the adhesive portion of the absorbent article coming into contact with the skin of the wearer.

The absorbent article 10 can be fixed to a wearing article such as intimate clothing by the adhesive portions 42, 52, and 70 provided on the non-skin-facing surface side of the back sheet 22. In addition, by using the adhesive portions 42, 52, and 70, in a state where the absorbent article 10 is wound after the absorbent article 10 is used, a belt portion 80 described later can be fixed to maintain the wound state. Therefore, the adhesive portions 42, 52, and 70 can be used for both of the purpose of fixing to clothing and the purpose of fixing the post-processing belt portion 80.

The main body adhesive portion 70 is provided in a region overlapping the absorbent core material 23 in the thickness direction of the absorbent article 10, that is, in the main body region RA. The main body adhesive portion 70 preferably extends continuously or intermittently from at least the drain-portion-facing area S1 toward the rear of the absorbent article 10. The main body adhesive portion 70 extends in the front-rear direction L, and a plurality of the adhesive portions 70 are provided in the width direction W at intervals. In other forms, the main body adhesive portion 70 may extend in the width direction W, and a plurality of the adhesive portions 70 may be provided at intervals in the front-rear direction.

The fin-adhesive portion 42 is provided on the fin 40. The flap 40 is folded back toward the wearing article of the wearer during use, and is attached to the non-skin-facing surface side of the wearing article via the flap attachment portion 42. The flap adhesive portion 52 is provided on the hip flap piece 50. The fin adhesion portion 42 and the flap adhesion portion 52 are provided in the extension area RB.

The absorbent article 10 may have a crease extending in the width direction W. In the example shown in FIGS. 1 and 2, the crease of the absorbent article 10 includes a first crease F1, a second crease F2, and a third crease F3. The first crease F1 is a crease closest to the leading edge E1 of the absorbent article 10. The second crease F2 is a crease closest to the rear end edge E2 of the absorbent article 10. The third crease F3 is arranged between the first crease F1 and the second crease F2. Furthermore, four or more creases may be provided. The crease is a line for folding the absorbent article 10 with the skin-facing side of the absorbent article as the inside when packaging the absorbent article.

An example of the specific structure of the absorbent article of this embodiment is shown. The surface sheet is composed of a hot air nonwoven fabric (PE / PET) having a basis weight of 30 g / m ² . A second sheet may be provided between the surface sheet and the absorbent core material. The second sheet may be made of the same material as the surface sheet. The side sheet may be arranged on the outside of the main body portion in the widthwise direction without the surface sheet. As the side sheet, an SMS nonwoven fabric (PP) having a basis weight of 13 g / m ² can be used. The absorbent material of the absorbent core material can be composed of conifer kraft pulp and a superabsorbent polymer. The ratio of the weight of the superabsorbent polymer to the weight of the entire absorbent material was 10%. The basis weight of the absorbent core material in the area including the drain opening facing area S1 is configured to be higher than the basis weight of the surrounding absorbent core material. The basis weight of the absorbent core material in the area including the drain opening facing area S1 may be 950 g / m ² , and the basis weight of the surrounding absorbent core material may be 300 g / m ² . The back sheet can be composed of a polyethylene film (non-ventilated form) having a basis weight of 23.5 g / m ² . The absorbent article may be formed with a press section that presses the surface sheet and the absorbent core material in the thickness direction. The main body adhesive portion is composed of a rubber-based hot-melt adhesive. The main body adhesive part has a basis weight of 27 g / m ^{2, and the main} body adhesive part can be provided with six spaces in the width direction. The length in the width direction of each body adhesive portion is 5 mm, and the length in the front-rear direction of each body adhesive portion is 320 mm. The length of the absorbent article in the front-back direction is 420 mm, and the length of the absorbent article in the width direction is 200 mm. The non-skin-facing surface of the post-treatment belt portion may be composed of a polyethylene film having a basis weight of 35 g / m ² . The length of the belt portion in the longitudinal direction is 45 mm, and the length of the belt portion in the short side direction is 25 mm.

Next, the belt portion 80 will be described in detail. The belt portion 80 is configured to be fixed to the wrapped absorbent article when the absorbent article 10 is discarded to maintain the wound state of the absorbent article 10. The extension region RB is provided with a belt portion 80 and a non-belt portion 81. The belt portion 80 is configured such that the non-skin facing surface (the surface on which the back sheet 22 and the adhesive portion are provided) that can be turned back into the belt portion 80 faces the skin facing surface side of the absorbent article 10. The state in which the non-skin-facing surface of the belt portion 80 is turned toward the skin-facing surface side of the absorbent article 10 is a state before the folding-back, and the surface sheet 21 and the back sheet 22 of the belt portion 80 face the opposite side.

In a state where the belt portion 80 has been folded back, the back sheet 22 of the belt portion, the surface sheet 21 of the non-folded non-belt portion 81, and the surface sheet 21 of the main body region RA can be disposed toward the skin facing surface side. The non-belt portion 81 is a portion that is not folded back by the folding of the belt portion 80.

The non-skin facing surface of the band portion 80 is configured as at least one of a non-skin facing surface that can be fixedly attached to the body region RA and a non-skin facing surface of the non-band portion 81. The non-skin facing surface of the belt portion 80 may be fixed to the non-skin facing surface of the main body region RA, or may be fixed to the non-skin facing surface of the non-strip portion 81, or may be fixedly mounted to the main body region RA. Both the non-skin facing surface and the non-skin facing surface of the non-belt portion 81.

As shown in FIG. 3, the non-skin-facing surface of the belt portion 80 can be directed toward the absorbent body by folding the belt-side portion of the absorbent article in a state in which the skin-facing surface of the absorbent article 10 is inside. The skin-facing side of the article (the inner side of the rounded state). By disposing the band portion 80 on the outside of the rounded portion, the non-skin facing surface of the rounded portion and the non-skin facing surface of the band portion 80 can be arranged to face each other. In this state, by fixing the belt portion 80 to the main body region RA or the non-belt portion 81, the absorbent article can be rounded and fixed by the belt portion 80.

The belt portion 80 is provided in an extension region RB that extends beyond the absorbent core material. Therefore, the belt portion does not directly affect the absorbent core material, and it is possible to suppress leakage of body fluid from the absorbent core material, overflow of the absorbent material, and the like. In addition, the fixed mounting surface (not the skin-facing surface) of the band portion faces the skin of the wearer when used. Therefore, when the absorbent article is worn, it is possible to suppress the discomfort caused by the fixed mounting surface of the belt portion coming into contact with the skin of the wearer. Therefore, it is desirable to suppress the discomfort at the time of wearing, and to discard it cleanly by the post-processing belt portion at the time of disposal.

The structure in which the belt portion 80 is fixed to the body region RA may be a body adhesive portion 70. Alternatively, the non-skin-facing surface side of the band portion 80 is provided with an adhesive portion for fixing the absorbent article 10 to the wearing article. Specifically, the band portion 80 is fixedly attached to the main body region RA by the fin adhesion portion 42 or the flap adhesion portion 52 of the band portion 80. By fixing the band portion 80 to the main body region RA by the adhesive portion of the band portion 80, a state in which the absorbent article 10 is rounded can be maintained. In addition, the structure in which the belt portion 80 is fixed to the non-belt portion 81 may be a fin-adhesive portion 42 or a flap-adhesive portion 52. As another form, a fixed attachment means such as a hook member may be provided in the band portion 80, and the band portion 80 may be fixedly attached to the main body region RA or the non-belt portion 81 by the fixed attachment means.

A tear portion 85 may be provided at a boundary between the belt portion 80 and the non-belt portion 81. The tear portion 85 allows the user to easily tear the extended region RB. The extension area RB is partially torn by the tear portion 85, and this torn portion can be used as the band portion 80. Specific examples of the structure of the tear portion 85 include a perforation line, a weak portion having a lower strength than the surroundings, and combinations thereof. The punched wire has openings of the front sheet 21 and the back sheet 22 that penetrate the extended region RB. In addition, the fragile portion includes, for example, a portion where the basis weight is reduced by expanding a material such as the surface sheet 21 constituting the extension region RB. The rear sheet 22 is not provided with an opening, and the surface sheet 21 is provided with an intensity. Lower surrounding areas, and areas where the strength of the material is reduced by heat and pressure by means such as embossing.

By tearing the extended region RB through the tearing portion 85, the belt portion 80 and the non-belt portion 81 are cut, and the belt portion 80 is configured to fold back the non-belt portion 81. In FIG. 1, the belt portion 80 is indicated by oblique lines. The tear portion 85 of this embodiment extends in a direction from the outer edge 10E of the absorbent article toward the inside of the absorbent article 10. The outer end edge 851 of the tear part 85 reaches the outer edge 10E of the absorbent article 10, and the inner end edge 852 of the tear part 85 ends in the extension area RB. That is, the inner end edge 852 of the tear portion 85 is separated from the main body region RA in a plan view. The tear portion 85 terminates in the extended region RB and does not reach the main body region RA where the absorbent core material 23 is disposed. Therefore, even if the entire region of the tearing portion 85 is cut, the band portion 80 does not directly affect the absorbent core material 23, and it is possible to suppress leakage of body fluid from the absorbent core material 23 and overflow of the absorbent material.

The band portion 80 is a region held by the tear portion 85 and the outer edge 10E of the absorbent article. The band portion 80 can also be folded back using the inner end edge 852 of the tear portion 85 as a base point. The turning-back base point is an imaginary line FL1 extending from the inner end edge 852 of the tear portion 85 to the outer edge 10E of the absorbent article. It should be noted that the imaginary line FL1 is shifted in accordance with the user's turning state, and is not limited to the position shown in FIG. 1.

The tear portion 85 is oriented along the fibers in at least one of the front sheet 21 and the back sheet 22. Sheets having fibers such as a non-woven fabric are easily torn along the direction in which the fibers are oriented. When cutting is performed by the tear part 85, the tear part easily extends along the orientation of the fiber, and the band part 80 can be easily disposed and discarded.

The tear portion 85 is provided on the hip flap 50. The belt portion 80 is a hip flap provided on the rear side of the center of the absorbent article 10 in the front-rear direction L. In addition, at least a part of the buttock flap 50 and the tearing portion 85 may be located more rearward than the center of the front-back direction L of the absorbent article 10, and the entire buttock flap 50 may not be located in the front-back direction L of the absorbent article 10. The center is farther back. In general, when a user rounds up the absorbent article 10, it starts from the front end edge E1 or from the rear end edge E2 of the absorbent article 10 toward the front-rear direction L. Among them, about 80% of the users are rounded from the leading edge E1 of the absorbent article 10. Therefore, it is preferable that the band portion 80 is provided in a region located on the rear side with respect to the center of the front-rear direction L. The buttock flaps 50 are arranged to cover the sides of the buttocks, and body fluids are not easily attached directly. By providing the tear portion 85 in the hip flap 50, when the extended region RB is torn by the tear portion 85, the body fluid can be prevented from adhering to the hand. At least a part of the belt portion 80 is disposed across the rear end edge of the absorbent core material 23 or on a rear side of the rear end edge of the absorbent core material.

It is desirable that the belt portion 80 is provided on the rear side of the second crease F2 on the rearmost side among the first crease F1 to the third crease F3. As described above, about 80% of the users roll the absorbent article 10 after use from the front side. By providing the belt portion 80 on the rear side than the second crease F2, more users can be rounded up from the front edge E1 of the absorbent article 10, and the winding end portion can be wound by the belt portion 80. Be fixed.

Next, an absorbent article according to another embodiment will be described. In the following description, the same reference numerals are used for the same portions as those in the above-mentioned embodiment, and descriptions thereof are omitted. FIG. 4 is a plan view of the skin-facing surface side of the absorbent article 10A of Modification 1. FIG.

The belt portion 80 of the absorbent article 10A of the first modification is configured to be detachable from the non-belt portion 81. The tear portion 85 extends from the first outer edge 851A located on the outer edge 10E of the absorbent article to the second outer edge 851B located on the outer edge of the absorbent article. By tearing with the tearing portion 85, the belt portion 80 can be cut from the non-belt portion 81. In the state where the band portion 80 is cut, the non-skin facing surface turned back to the band portion 80 faces the skin facing surface side of the main body region RA. Therefore, by cutting the belt portion 80, there are fewer restrictions on the mounting position of the belt portion 80 when discarded, and it is possible to fix the belt portion 80 to a place where the absorbent article 10A is rounded and easily attached.

The tear portion 85 extends in the width direction W on the rear side from the main body region RA. When the absorbent article is rounded in the front-rear direction, a region further behind than the main body area is exposed on the surface in a state of being rounded. Since the belt portion is arranged at the exposed portion, the user can easily recognize the belt portion and can maintain the state in which the absorbent article is rounded by the belt portion.

Moreover, as another form, the tear part 85 may be located in the width direction outer side rather than the main body area RA, and may be along the front-back direction. In this other aspect, the first outer end edge 851A and the second outer end edge 851B of the tear portion 85 may be provided on the hip flap 50 or on the flap 40.

FIG. 5 is a plan view of the skin-facing surface of the absorbent article 10B according to the second modification. The absorbent article 10B of the second modification has a pair of tearing portions 85. The pair of tear portions 85 are arranged at intervals in an orthogonal direction orthogonal to the extending direction in which the tear portions 85 extend. Specifically, the tear portion 85 extends in the front-rear direction L, and is arranged at intervals in the width direction W. By partially tearing the extension region RB with the tearing portion 85, a portion held by the pair of tearing portions 85 can be used as the band portion 80. In another aspect, the pair of tearing portions 85 may extend in the width direction W, and may be arranged at intervals in the front-rear direction L.

The outer end edges 851 of the pair of tearing portions 85 are consistent with the outer edge 10E of the absorbent article 10, and the inner end edges 852 are all terminated in the extended area RB. An imaginary line FL2 connecting the inner end edges 852 of the pair of tearing portions 85 to each other serves as a turning-back base point of the band portion.

FIG. 6 is a plan view of the skin facing surface side of the absorbent article 10C of the third modification. The band portion 80 of the absorbent article 10C according to the third modification is configured by a convex portion 82. The extension region RB has a convex portion 82 that projects toward the outside of the absorbent article 10 in a plan view. The convex portion 82 is a portion that bulges toward the outside of the absorbent article. The convex portion 82 has a pair of base portions 83 that become one of the bulging base points. The pair of root bases 83 includes a first base 831 and a second base 832. The convex portion 82 is a portion located on the outer side from the imaginary line FL3 connecting the base portions 83 (the first base portion 831 and the second base portion 832) to each other.

By twisting the convex portion 82 with the base portion 83 as a base point, the user can turn the non-skin facing surface of the convex portion 82 toward the skin facing surface side of the absorbent article 10. The convex part 82 is a part which protrudes toward the outer side of the absorbent article 10 in the extension area RB, and is easy to fold back to the area | region adjacent to the convex part 82. The user fixes the non-skin facing surface of the band portion 80 to the non-skin facing surface of the main body region RA or the non-skin facing surface of the non-strip portion 81 by folding the convex portion 82 back, and can absorb the absorbency The article 10 is rounded and fixed by the band portion 80.

Further, in the extension region RB, a tear portion 85 extending in a direction connecting the base portions 83 to each other may be formed. The tear portion 85 may extend from at least one of the root base portions 83 to the other root base portion 83. The tearing portion 85 may not reach from the other base portion 83 from the one base portion 83. By tearing with the tearing portion 85, the distance between the base portions can be shortened. The base portion of the convex portion is a portion that becomes a base point and twists when the band portion is folded back. By shortening the distance between the root and base portions, the width of the twisted region becomes shorter when the belt portion is folded back, and it becomes easier to turn back.

The protruding length L82 of the protrusion 82 is longer than the distance G82 that connects the base portions 83 of the protrusion 82 to each other. The distance G82 connecting the root bases 83 to each other is a distance from an imaginary line FL3 connecting the first base 831 to the second base 832. The protruding length L82 is the distance between the imaginary line FL3 along the straight line orthogonal to the imaginary line FL3 and the front end of the convex portion 82. The front end of the convex portion 82 is the outer edge of the convex portion 82. The base portion 83 of the convex portion 82 is a portion that becomes a base point and is torn or torn when the band portion 80 is folded back. Since the distance connecting the base portion 83 is short, the area to be twisted when the band portion 80 is folded back or the region torn by the tear portion 85 is shortened, making it easier to use the band portion 80.

Moreover, as another form, the tear part 85 can also be provided so that the base part 83 may be connected with each other. By cutting the extension region RB with the tear portion, the band portion 80 can be cut from the non-band portion 81. Therefore, there are fewer restrictions on the mounting position of the belt portion 80 when discarded, and the belt portion 80 can be fixed to a place where the absorbent article can be easily mounted in a state where the absorbent article is rounded.

FIG. 7 is a plan view of the skin-facing surface of the absorbent article 10D according to the fourth modification. The belt portion 80 of the absorbent article 10D according to the fourth modification is configured by a convex portion 82. The convex portion 82 has a reduced diameter portion 84 having a shorter width than the convex portion 82. The reduced-diameter portion 84 is configured such that the length in the width direction (direction orthogonal to the protruding direction) of the convex portion 82 is shorter than a portion adjacent to the protruding direction. Specifically, in a configuration in which the convex portion 82 protrudes in the front-rear direction L, the length in the width direction W of the convex portion 82 is shorter than a portion adjacent to the front-rear direction L. The reduced-diameter portion 84 easily becomes a base point for turning back, and it becomes easy for a user to turn back the belt portion through the convex portion 82. Furthermore, in the belt portion 80 having the reduced-diameter portion 84, the reduced-diameter portion easily becomes a base point for folding back. Therefore, a tearing portion 85 may be provided in the reduced diameter portion 84.

As mentioned above, although this invention was demonstrated in detail using the said embodiment, this invention is not limited to a person skilled in the art by the embodiment described in this specification. The present invention can be implemented with various modifications and changes without departing from the technical idea and scope of the present invention as defined by the description in the scope of the patent application. Therefore, the description purpose of this specification is for illustration, and is not intended to limit the present invention. For example, the belt portion 80 of the embodiment and the modification may have a tear portion or a convex portion.

Furthermore, all the contents of Japanese Patent Application No. 2017-252511 filed on December 27, 2017 are referred to in this specification.

[Industrial availability]

It is possible to provide an absorbent article which can suppress discomfort at the time of wearing, and can be cleanly discarded by a post-processing belt portion when discarded.

10, 10A, 10B, 10C, 10D‧‧‧ absorbent articles

21‧‧‧ surface sheet

22‧‧‧ back sheet

23‧‧‧ Absorbent core material

80‧‧‧ Belt Department

81‧‧‧Non-band

82‧‧‧ convex

83‧‧‧ root

84‧‧‧ Reduced diameter

85‧‧‧Tear

RA‧‧‧Body area

RB‧‧‧Extended area

L‧‧‧ forward and backward

W‧‧‧Width direction

FIG. 1 is a plan view of the absorbent article according to the embodiment as viewed from the skin-facing side.

Fig. 2 is a plan view of the absorbent article according to the embodiment as viewed from the non-skin-facing side.

Fig. 3 is a perspective view of the absorbent article in a state after being wound in the front-rear direction.

FIG. 4 is a plan view of the absorbent article according to the first modification as viewed from the skin-facing side.

FIG. 5 is a plan view of the absorbent article according to the second modification as viewed from the skin-facing side.

FIG. 6 is a plan view of the absorbent article according to Modification 3 as viewed from the skin-facing side.

FIG. 7 is a plan view of an absorbent article according to Modification 4 as viewed from the skin-facing side.

Claims (14)

An absorbent article comprising: front-back direction; A width direction orthogonal to the aforementioned front-rear direction; The body area where the topsheet, backsheet and absorbent core material overlap; and It is more extended than the outer edge of the absorbent core material, and at least the extended areas of the surface sheet and the back sheet are arranged, The extension area is provided with: a band portion constituting a non-skin facing surface that can be turned back to a skin facing surface facing the absorbent article; and a non-belt portion that does not constitute the aforementioned belt portion, The non-skin facing surface of the band portion is configured as at least one of a non-skin facing surface that can be fixedly mounted on the body region and a non-skin facing surface of the non-band portion. The absorbent article according to the first patent application scope, wherein the extension region is provided with a tear portion extending from an outer edge of the absorbent article to an inner side of the absorbent article. For example, in the absorbent article according to the second patent application range, wherein the tear portion extends from the outer end of the outer edge of the absorbent article to the inner end edge of the inner side of the absorbent article, The inner edge of the preface ends in the aforementioned extension area. For example, if the absorbent article according to item 2 or 3 of the patent application scope, wherein the aforementioned tearing portions are provided in a pair, The pair of tearing portions are arranged at intervals in an orthogonal direction orthogonal to an extending direction in which the tearing portion extends. For example, in the absorbent article according to the second scope of the application, the tear portion extends from the first outer edge of the outer edge of the absorbent article to the second outer edge of the outer edge of the absorbent article. . For example, if the absorbent article according to item 2 or 3 of the patent application scope, wherein at least one of the front sheet and the back sheet of the extended region is a sheet containing fibers, The tear portion is along the orientation direction of the fiber. For example, if the absorbent article in the scope of patent application No. 2 or 3 is provided, in the aforementioned extension region, a hip flap located further behind the center of the absorbent article in the front-rear direction, The tear portion is provided on the hip flap. For example, in the absorbent article according to the first patent application range, wherein the extended region has a convex portion protruding toward the outside of the absorbent article, The belt portion is configured by the convex portion. For example, in the absorbent article of the eighth aspect of the patent application, the convex portion is a reduced-diameter portion having a shorter width than the convex portion. For example, in the absorbent article according to claim 8 of the patent application scope, a tear portion extending in a direction connecting the base portions of the convex portions to each other is formed in the extension region. For example, in the absorbent article of the eighth aspect of the patent application, the protruding length of the protrusion is longer than the distance connecting the root and the base of the protrusion. According to the absorbent article according to any one of claims 1 to 3, the non-skin facing surface side of the belt portion is provided with an adhesive portion for fixing the absorbent article to a wearing article. For example, if the absorbent article according to any one of claims 1 to 3 includes an adhesive portion for fixing the absorbent article to a wearing article, The said adhesive part is arrange | positioned on the non-skin facing surface side of the said absorbent article, and is not arrange | positioned on the skin facing surface side of the said absorbent article. For example, the absorbent article according to any one of claims 1 to 3, wherein the belt portion is provided on an outer side closer to the front-rear direction than the body region.