JP6333300B2 - Absorbent articles - Google Patents

Description

  The present invention relates to an absorbent article.

  Absorbent articles such as light incontinence pads, sanitary napkins, and disposable diapers are used to absorb and retain excretions such as urine and menstrual blood excreted from the wearer. Since the excrement absorbed by the absorbent body of the absorbent article usually emits an unpleasant odor, an absorbent article having a deodorizing function for suppressing the odor has been studied.

  As an absorbent article having a deodorizing function, for example, Patent Document 1 discloses an absorbent article containing a deodorant. This absorbent article contains a deodorant between the top sheet and the absorbent core or in the absorbent core, and the average basis weight of the deodorant is more grooved than the part where the groove is not formed. It has a configuration of being small in the part. In this absorbent article, the deodorant is disposed substantially uniformly except for areas that are affected by pressing or the like.

JP 2001-353174 A

  By the way, in the absorbent article, at the time of use, a portion that is relatively high in the vertical direction and a portion that is relatively low are generated due to deformation during wearing and the posture of the wearer. At this time, since the deodorant is not necessarily strictly fixed to the absorbent article, the position of the deodorant can be moved in accordance with deformation or posture during use. As a result, the deodorant disposed at a relatively high position may move to a relatively low position. In this case, if the deodorant is uniformly arranged in the absorbent layer in advance, a sufficient amount of the deodorant may not be secured at the time of use at a relatively high position.

  Therefore, an object of the present invention is to provide an absorbent article capable of securing an appropriate amount of deodorant in the region where excrement is discharged, regardless of the deformation of the absorbent article or the influence of the posture. It is in.

The absorbent article of the present invention is as follows.
(1) having a longitudinal direction, a width direction, and a thickness direction, and a liquid-permeable layer, a liquid-impermeable layer, and an absorption layer positioned between the liquid-permeable layer and the liquid-impermeable layer The absorbent layer has a deodorant, and includes a deodorant arrangement region including an excretory opening contact area of the absorbent article, and the deodorant is the deodorant. In the cross section along the first direction passing through the excretory opening contact area in the agent placement area, the basis weight of the portion that is relatively high in the vertical direction when the absorbent article is used is at a relatively low position. The absorbent article arrange | positioned in the said deodorant arrangement | positioning area | region so that it may become more than the basic weight of the part which becomes.

  Therefore, the present absorbent article has the above-described configuration, so that a portion at a relatively high position and a portion at a low position in the vertical direction are generated due to deformation during use of the absorbent article and the posture of the wearer. Even if the deodorant moves from the higher part to the lower part, the deodorant only moves from the higher basis weight part to the lower part. The amount can be secured. Here, in the vertical direction, a relatively high position in the cross-section passing through the excretory opening contact area can be said to be a portion that contacts (absorbs) substantially when excrement is excreted. Therefore, it is possible to ensure an appropriate amount of deodorant in the region where excreta is discharged, regardless of the influence of deformation and body posture in the absorption layer.

(2) The absorbent article according to (1) above, wherein the first direction is the width direction.
The absorbent article passes through the excretory opening contact area of the deodorant arrangement region, and when viewed in a cross section along the width direction, it is sandwiched between the bases of the wearer's feet at the time of use. It is deformed so as to have a convex shape on the skin facing surface side. For example, in the vertical direction, the central portion in the width direction is relatively high and the both side portions are relatively low. Therefore, in the absorbent article, in the cross section passing through the excretory opening contact area along the width direction, the portion having a relatively high position has a larger basis weight than the portion having a relatively low position. The odorant is arranged in the deodorant arrangement area. For example, a deodorant is arrange | positioned in a deodorizer arrangement | positioning area | region so that the basic weight of the center part of the width direction may become larger than the basic weight of the part of the both sides. In this absorbent article, when the absorbent article is used, even if the deodorant moves from a relatively high position part, i.e., a convex shape top, to a low position part, i.e., a convex hem, Since the deodorant simply moves from a portion with a large basis weight to a portion with a small basis weight, the amount of the deodorant at a relatively high position can be secured.

(3) The absorption layer includes a bulky portion formed higher in the excretory opening contact region than the peripheral portion, and is relatively high in the vertical direction in the deodorant placement region. The part may be the absorbent article according to the above (1) or (2), which is the bulky part.
The absorbent article can be deformed so as to have a convex shape upward (skin facing surface side) by being sandwiched between the bases of the wearer's legs during use, but the thicker the thickness is, the less the deformation is. It is easily deformed. Accordingly, the thin portion is easily deformed and is directed downward in the vertical direction, and the thick portion is a portion that is relatively high in the vertical direction. Therefore, in this absorbent article, in the cross section along the first direction passing through the excretory opening contact area, the bulky portion where the thickness of the absorbent layer is thicker is larger in weight than the peripheral region where the thickness of the absorbent layer is thin. The deodorant is disposed in the deodorant placement region. In this absorbent article, when the absorbent article is used, even if the deodorant moves from a relatively high part, that is, a thick part to a low part, that is, a peripheral part where the thickness is thin. Since the deodorant simply moves from the high basis weight portion to the low portion, the amount of the deodorant in the central portion can be secured.

(4) The deodorizer further includes a plurality of fixing portions arranged at predetermined intervals on the surface of the liquid impermeable layer opposite to the absorption layer to fix the absorbent article to clothes. In the arrangement area, the part that is relatively high in the vertical direction is any part other than the parts corresponding to the plurality of fixing parts in the deodorant arrangement area, any of (1) to (3) above Or an absorbent article according to any one of the above.
Since each of the plurality of fixing portions is adhered or adhered to clothing such as underwear, the portion corresponding to the fixing portion of the absorbent article has high rigidity by overlapping with the clothing. Here, the absorbent article is compressed from the outer side to the inner side in the width direction by, for example, being sandwiched between the bases of both feet during use. At this time, since the portion corresponding to the fixed portion of the compressed portion of the absorbent article has high rigidity, the portion itself is not compressed in the width direction, and the portion between the two is the skin facing surface side (upward To the side). That is, parts other than the part corresponding to the fixed part are raised in a convex shape. Therefore, the absorbent article has a cross section along the first direction passing through the excretory opening contact area so that the portion other than the portion corresponding to the fixed portion has a larger basis weight than the portion corresponding to the fixed portion. The odorant is arranged in the deodorant arrangement area. By configuring the absorbent article in this manner, when the absorbent article is used, it corresponds to a portion at a relatively high position, that is, a portion at a lower position than the portion corresponding to the fixed portion, that is, the fixed portion. Even if the deodorant moves to the part, the deodorant only moves from the part with a higher basis weight to the lower part, so the amount of the deodorant at the center part can be secured.

(5) The said (1) thru | or (1) thru | or () which the pressing part extended in the said longitudinal direction is formed in the both sides of the said width direction of the part which becomes a relatively high position in the said vertical direction in the said deodorant arrangement | positioning area | region. The absorbent article as described in any one of 4) may be sufficient.
In this absorbent article, since the pressing part is formed on both sides in the width direction of the portion that is relatively high in the vertical direction, the deodorant in the portion that is in the high position is prevented from spreading too much in the width direction. it can. That is, it is possible to prevent a situation where the deodorant spreads too much in the width direction due to the influence of deformation and body posture, and the deodorant in the region where excrement is discharged becomes insufficient. Accordingly, an appropriate amount of deodorant can be ensured in the region where excrement is discharged regardless of the influence of deformation and body posture in the absorption layer.

(6) The absorbent layer is disposed between the first absorbent layer disposed on the liquid permeable layer side, the first absorbent layer, and the liquid impermeable layer, and the deodorant disposed. A second absorbent layer including a region, wherein the first absorbent layer comprises an absorbent polymer, the absorbent polymer, the surface of the absorbent polymer on the liquid-permeable layer side, and the second absorbent layer. A liquid permeable sheet sandwiched on the surface of the absorbent layer, wherein the liquid permeable sheet is positioned on both sides in the width direction of the sandwiched part, the sandwiched part sandwiching the absorbent polymer And a non-pinch portion that extends along the longitudinal direction and does not sandwich the absorbent polymer, and the non-pinch portion is folded along a fold line extending along the longitudinal direction. A portion that is relatively high in the vertical direction in the deodorant placement region A portion corresponding to the minute, it may be a absorbent article according to any one of the above (1) to (5).
The end of the liquid permeable sheet is folded and laminated, but the central portion of the liquid permeable sheet is not laminated. Therefore, the edge part of a liquid-permeable sheet has high rigidity compared with a center part. Here, the absorbent article is compressed from the outer side to the inner side in the width direction by, for example, being sandwiched between the bases of both feet during use. At this time, since the end of the liquid permeable sheet has high rigidity among the compressed parts of the absorbent article, the part itself is not compressed in the width direction, that is, the part between the two, that is, the liquid permeable sheet. The center part of the skin is deformed so as to rise to the skin facing surface side (upper side), thereby releasing the compression force. As a result, a convex ridge extending in the longitudinal direction is formed at the central portion (clamping portion) between the end portions (non-clamping portion). Therefore, the present absorbent article includes first and second absorbent layers, and in the first absorbent layer, the liquid-permeable sheet sandwiches the absorbent polymer at the sandwiching portion (center portion), and the absorbent article is disposed on both sides of the sandwiching portion. Deodorized in the deodorant placement area so that the basis weight of the part corresponding to the non-clamping part is larger than that of the part corresponding to the non-clamping part. Agent is placed. With this configuration of the absorbent article, when the absorbent article is used, deodorization is performed from a relatively high position portion, that is, a portion corresponding to the sandwiched portion to a lower position portion, that is, a portion corresponding to the non-nip portion. Even if the agent moves, the deodorant only moves from the high basis weight to the low basis weight, so the amount of the deodorant in the central portion can be secured.

(7) The absorbent layer includes a deodorant-containing absorbent material layer containing the deodorant and an absorbent material, and a top sheet that sandwiches and encloses the deodorant-containing absorbent material layer from both sides in the thickness direction; In any one of the above (1) to (6), further comprising: a lower surface sheet; and an adhesive formed on at least one of the upper surface sheet and the lower surface sheet on the deodorant-containing absorbent layer side. The absorbent article described may be used.
This absorbent article is provided with an adhesive on the top sheet or the bottom sheet of the deodorant-containing layer containing the deodorant in the absorbent layer. Therefore, the deodorant in contact with the adhesive in the deodorant-containing layer is held by the adhesive and hardly moves, and the deodorant not held by the adhesive is also bonded to the deodorant held by the adhesive. The movement is restrained to some extent by friction and friction. As a result, it is possible to prevent the deodorant from moving indefinitely and to move within a predetermined range. Thereby, it becomes possible to ensure an appropriate amount of deodorant in the area where excreta is discharged.

(8) The deodorant is not held on the upper sheet and the lower sheet by the adhesive, the holding deodorant held on at least one of the upper sheet and the lower sheet by the adhesive, The absorbent article according to (7) above, including a non-retaining deodorant disposed so as to be movable between the upper surface sheet and the lower surface sheet.
The absorbent layer of the present absorbent article includes a non-retaining deodorant disposed so as to be movable between the upper sheet and the lower sheet. Therefore, the non-holding deodorant can move according to the movement (or posture) of the absorbent article, that is, according to the movement and posture of the user. For example, when the user lies down sideways, the horizontal portion of the absorbent layer is vertically downward, so that the deodorant can move to the horizontal portion by gravity. As a result, even when the user releases excrement sideways and the excrement is directed to the lower horizontal part by gravity, the deodorant has moved to the horizontal part in advance, so the odor of the excrement Can be reliably suppressed. That is, an appropriate amount of deodorant can be secured in the region where excrement is discharged regardless of the influence of deformation or body posture in the absorption layer.

  ADVANTAGE OF THE INVENTION According to this invention, regardless of the deformation | transformation of an absorbent article, or the influence of a body posture, the absorbent article which can ensure an appropriate amount of deodorant in the area | region where excrement is discharged | emitted can be provided.

It is a top view showing composition of an absorptive article of an embodiment. It is sectional drawing which follows the II-II 'line | wire of FIG. It is a top view for explaining each field of an absorptive article of an embodiment. It is a schematic diagram for demonstrating distribution of the deodorizer of the deodorizer arrangement | positioning area | region in the cross section along the II-II 'line of FIG. It is a schematic diagram for demonstrating the movement of the deodorizer of the absorbent article of embodiment. It is sectional drawing which follows the II-II 'line | wire of FIG. 1 of the absorbent article of other embodiment. It is a top view which shows the structure of the absorbent article of other embodiment. It is sectional drawing which follows the VIII-VIII 'line | wire of FIG. It is a schematic diagram for demonstrating distribution of the deodorizer of the deodorizer arrangement | positioning area | region in the cross section along a VIII-VIII 'line of FIG. It is a schematic diagram for demonstrating the movement of the deodorizer of the absorbent article of embodiment.

  Hereinafter, the absorbent article which concerns on embodiment is demonstrated with reference to drawings. In the present embodiment, a light incontinence pad will be described as an example of an absorbent article. Therefore, in this embodiment, the excrement which is the absorption target of the absorbent article is urine. However, the type and use of the absorbent article of the present invention are not particularly limited, and can be applied to absorbent articles such as panty liners, sanitary napkins, and disposable diapers (tape type, pant type).

1-3 has shown the structure of the absorbent article 1 (light incontinence pad) which concerns on this embodiment. However, FIG. 1 is a plan view showing a configuration of the absorbent article 1 in a developed state. 2 is a cross-sectional view taken along the line II-II ′ of FIG. FIG. 3 is a plan view for explaining each region of the absorbent article 1. The absorbent article 1 has a longitudinal _{D L,} the width direction _{D W} and the thickness direction _{D T,} passes through the center of the width direction _{D W,} and the central axis _{C L} extending in the longitudinal direction _{D L,} a longitudinal direction _{D L} It passes through the center of the further has a central axis C _W extending in the width direction D _W. Further, in FIGS. 1 and 3, the upper side is the front of the absorbent article 1 and the lower side is the rear of the absorbent article 1.

In this specification, a direction toward the central axis C _L, referred to as inner direction in the width direction D _W, the direction away from the central axis C _L, that the outer direction in the width direction D _W. Similarly, the direction toward the central axis C _W, referred to as inner direction in the longitudinal direction D _L, a direction away from the central axis C _W of the outer direction in the longitudinal direction D _L. Further, in the thickness direction _DT of the absorbent article 1, the direction toward the side facing the wearer's skin facing surface (skin facing surface side) is referred to as the skin facing surface direction, and the wearer's skin facing surface The direction toward the side opposite to the side facing the skin (non-skin facing surface side) is referred to as the non-skin facing surface side.

As shown in FIG. 1, the absorbent article 1 of the present embodiment, in plan view, a rectangular longitudinal end edges of which has a short side extending in the long side in the width direction D _W extending in the longitudinal direction D _L arcuate It has a bulging shape. However, the shape of the absorbent article 1 in the present invention is not limited to such a shape, as long as the longer length shape than the width dimension of the longitudinal direction D _L of the length dimension in the width direction D _W, optionally It can be made into the vertically long shape (for example, a rectangle, an ellipse, a bowl shape, etc.).

As shown in FIG. 2, the absorbent article 1 of the present embodiment includes a top sheet 2 (liquid permeable layer), a back sheet 3 (liquid impermeable layer), and between the top sheet 2 and the back sheet 3. An absorbent layer including an absorbent sheet S _A1 (first absorbent layer) and a deodorant-containing layer S _A2 (second absorbent layer). The top sheet (liquid permeable layer) 2 is a liquid permeable sheet located on the skin facing surface side of the wearer in the thickness direction _DT . Examples of the surface sheet 2 include any liquid-permeable sheet such as a liquid-permeable nonwoven fabric or woven fabric, a synthetic resin film having liquid-permeable holes formed therein, or a composite sheet thereof. The back sheet 3 (liquid impermeable layer) is a liquid impermeable sheet located on the non-skin facing surface side of the wearer. Examples of the back sheet 3 include any liquid-impermeable sheet such as a liquid-impermeable nonwoven fabric and a synthetic resin film, a composite sheet of a nonwoven fabric and a synthetic resin film, and an SMS nonwoven fabric. The absorbent sheet S _A1 (first absorption layer) is a layer having liquid absorbing performance and liquid holding performance, preferably having deodorizing performance, located between the top sheet 2 and the back sheet 3. In this embodiment, the absorbent sheet S _A1 has a configuration in which an absorbent material including the absorbent polymer 6 is sandwiched between two liquid-permeable sheets 7 and 7 ′ (example: air-through nonwoven fabric). The deodorant-containing layer S _A2 (second absorption layer) is a layer having liquid absorption performance, liquid retention performance, and deodorization performance, which is located between the absorbent sheet S _A1 and the back sheet 3. In this embodiment, the deodorant-containing layer S _A2 includes a deodorant-containing absorbent material layer 4 including a deodorant (eg, cyclodextrin), a mixture of an absorbent polymer and a liquid-retaining substance (eg, pulp). Is sandwiched between carrier sheets 5 and 5 '(upper sheet and lower sheet) made of two liquid-permeable sheets (example: tissue). In the absorbent article 1 of the present embodiment, the arrangement position of the absorbent sheet S _A1 is not particularly limited as long as it is between the top sheet 2 and the deodorant-containing layer S _A2, and the deodorant-containing layer S _The absorbent sheet S _A1 may be omitted if the liquid absorption performance, liquid retention performance, and excretion diffusion performance of _A2 are sufficient.

As shown in FIG. 2, the absorbent article 1 of the present embodiment further includes a pair of side gather sheets 8a and 8a ′, an exterior sheet 8b, linear elastic members 9 and 9 ′, and fixing portions 33 and 33. And. A pair of side gathers sheet 8a, 8a 'are arranged so as to cover the both surfaces in the width direction D _W at the surface sheet 2, a leakproofness wall extending in the longitudinal direction D _L. The pair of side gather sheets 8a and 8a 'are folded so as to be able to stand upright on the surfaces on both sides in the width direction _DW of the top sheet 2, and free ends so that the inner edges of the width direction _DW form a gather portion. It is said that. Linear elastic members 9, 9 'includes a pair of side gathers sheet 8, 8' in the vicinity of the free end of a linear elastic body extending along a longitudinal direction D _L. Two linear elastic members 9 and 9 'are disposed on each of the pair of side gather sheets 8 and 8', and contract the edges of the pair of side gather sheets 8 and 8 '. The exterior sheet 8b is bonded to the non-skin facing surface side of the back sheet 3, and is bonded to the pair of side gather sheets 8a and 8a ′ at the peripheral edge portion. Fixing portions 33 and 33, on the opposite side of the absorbent layer in the outer sheet 8b, it is an elongated rectangular adhesive tape joined along the longitudinal direction D _L. The fixing portions 33 and 33 fix the absorbent article 1 to a packaging sheet (not shown) via a separator when the absorbent article 1 is individually packaged, and the absorbent article 1 is worn by the wearer when the absorbent article 1 is used. Re-fix to underwear.

The absorbent article 1, as shown in FIG. 3, in plan view, substantially at the center of the region, and has a excretory opening contact region T _S. Excretory opening contact region T _S is configured to extend across the central axis C _L in the width direction D _W, it extends across the central axis C _W in the longitudinal direction D _L. In the present embodiment, the center in the width direction D _W of the excretory opening contact region T _S is approximately overlaps with a central axis C _L, the longitudinal direction D _L the center of the substantially overlaps the central axis C _W. Here, the “excretion opening contact area” is an area corresponding to the position of the wearer's excretion opening when the wearer wears the absorbent article, that is, an area where the wearer's excretion opening can contact. Depending on the type of absorbent article, specifically, the type of excreta such as urine, feces, menstrual blood discharged from the wearer, age and sex of the wearer, etc. This area is set as appropriate. In this embodiment, a long rectangular shape in the longitudinal direction D _L. Incidentally, excretory opening contact region T _S, as an example, a region inside the compressing portion 14 to be described later, for example, a longitudinal length of about one third of the total length of the longitudinal direction D _L of the absorbent article, The absorbent article has a width direction length of about 1/3 of the entire length in the width direction _DW of the absorbent article. Excrement, if discharged from the excretion portion of the wearer are first absorbed mainly in the absorbent article 1 in the excretory opening contact region T _S, then predominantly longitudinal direction D while being absorbed in the surface sheet 2 and the absorbent layer _Diffuses to _L.

Further, as shown in FIG. 3, the absorbent article 1 of this embodiment, the deodorizing agent-containing layer S _A2 has in plan view, extend in the longitudinal direction D _L and the width direction D _W of the absorbent article 1 adhesive and coating area T _H which have a deodorant arrangement area T _C extending longitudinally D _L and the width direction D _W. However, both edges _{E LC} in the lengthwise direction _{D L} deodorant depositing area _{T C,} 'both edges _{E WC} in _{the LC} and the width direction _{D W,} E' E _WC in the longitudinal direction of the respective adhesive coating region _{T H} both edges _{E LH} in D _L, 'both edges _{E WH} in _LH and a width direction _{D W,} E' E than _WH, positioned inside in the longitudinal direction _{D L} and the width direction _{D W.}

Here, the “adhesive coating region” refers to an adhesive for adhering the deodorant-containing absorbent layer 4 in the deodorant-containing layer S _A2 to the carrier sheet 5 and / or the carrier sheet 5 ′. 5 and / or an area in a plan view applied to the carrier sheet 5 ′. Specifically, it is a region extending in the longitudinal direction D _L and the width direction D _W of the absorbent article 1. Its shape is optional, in the present embodiment, the edge _{E LH} longitudinal _{D L,} 'edge _{E WH} of _LH and the width direction _{D W,} E' E is the longitudinal opposite edges of the rectangle and a _WH It has an arcuate shape. In the present embodiment, the adhesive application region _TH is formed on the carrier sheet 5 ′. The adhesive coated regions T _H, from the viewpoint of efficiency of contact with the discharged excrement and deodorants from the wearer, as shown in FIG. 3, in plan view, the longitudinal direction D _L of the absorbent article longitudinal across the central axis C _L across the width direction D _W with extending the width direction D _W, the central axis C _W extending in the width direction D _W of the absorbent article in the longitudinal direction D _L extending region extending to D _L is preferred.

The “deodorant placement region” means a region in a plan view in which a deodorant having a predetermined basis weight or more is placed on the surface of the carrier sheet 5 ′ (deodorant holding sheet). Is a region extending in the longitudinal direction _DL and the width direction _DW . The shape is arbitrary, but in the present embodiment, it has an elongated rectangular shape having end edges E _LC and E ′ _{LC in} the longitudinal direction D _L and end edges E _WC and E ′ _{WC in the} width direction D _W. ing. The deodorant arrangement area T _C, from the viewpoint of improvement of contact efficiency between been excrement and deodorants discharged from the wearer, as shown in FIG. 3, in plan view, longitudinal of the absorbent article with extending the width direction D _W across the central axis C _L extending in the direction D _L in the width direction D _W, the central axis C _W extending in the width direction D _W of the absorbent article across the longitudinal direction D _L preferably a region extending in the longitudinal direction D _L. Further, in this embodiment, substantially overlap the center in the width direction D _W deodorant arrangement area T _C is the central axis C _L, the center of the longitudinal direction D _L is substantially overlaps the central axis C _W. In other words, in the excretory opening contact region T _S and deodorant arrangement area T _C, the center of the central and longitudinal D _L in the width direction D _W overlap each. Thereby, it is possible to reliably guide the exudates discharged from the excretion portion deodorant arrangement area T _C.

In the present embodiment, in the absorbent article 1, the deodorant in the deodorant-containing layer _SA2 is partially bonded to the carrier sheet 5 ′ (lower surface sheet) with an adhesive, and in a plan view. Te, both edges _{E LC} in the lengthwise direction _{D L} deodorant arrangement area _{T C,} 'both edges _{E WC} in _{the LC} and the width direction _{D W,} E' E _WC is, the longitudinal direction of the respective adhesive coating region _{T H} both edges _{E LH} in D _L, 'both edges _{E WH} in _LH and a width direction _{D W,} E' E than _WH, has a structure positioned on the inner side in the longitudinal direction _{D L} and the width direction _{D W.} Therefore, in the part where the deodorant is held on the carrier sheet 5 ′ by the adhesive, the deodorant in the deodorant-containing absorbent layer 4 is difficult to move in the surface direction of the carrier sheet 5 ′. On the other hand, in a portion where the deodorant is not held by the adhesive on the carrier sheet 5 ′, in addition to not being in contact with the adhesive, the deodorant-containing absorbent layer 4 has a configuration (described later) and the like. The deodorizer in the odorant-containing absorbent layer 4 can move to a certain extent in the surface direction of the carrier sheet 5 ′. That is, a part of the deodorant is intentionally arranged to be movable depending on the configuration of the deodorant-containing absorbent layer 4 and the like. However, both edges _{E LC} in the lengthwise direction _{D L} deodorant arrangement area _{T C,} 'both edges _{E WC} in _{the LC} and the width direction _{D W,} E' E with adhesive located outside each than _WC, than It is difficult to move to the outside. Further, the movement of the deodorant that is not held on the carrier sheet 5 ′ by the adhesive is restricted to some extent by the binding or friction with the deodorant held on the carrier sheet 5 ′ by the adhesive. Accordingly, the absorbent article 1 of this embodiment, the deodorant deodorant in containing layer S _A2, while movably held, fastened generally to adhesives coated region T _H defined by an adhesive and you can keep, deodorant can be prevented from unevenly distributed beyond the deodorant arrangement area T _C. That is, the deodorant can be moved within a predetermined range while preventing the deodorant from moving without limit. Thereby, it becomes possible to secure an appropriate amount of deodorant in a necessary place, that is, in an area where excrement is discharged.

Figure 4 is a schematic diagram for explaining the distribution of deodorant arrangement area T _C of the deodorant in a cross section taken along line II-II 'of FIG. 1 of the absorbent article 1. The horizontal axis indicates the position of the absorbent article 1 in the width direction _DW , the vertical axis indicates the basis weight of the deodorant, and the curve BW is a curve indicating the distribution of the basis weight of the deodorant. In this embodiment, a deodorant is arrange | positioned on carrier sheet 5 'surface so that distribution of the basic weight of a deodorizer may become the curve BW shown in FIG. However, the curve BW is a convex curve on with a peak in the central region of deodorant arrangement area T _C (region including the central axis C _L). The materials other than the deodorant in the deodorant-containing layer S _A2 are almost the same regardless of the location. Curve BW, for example, a peak in the region including the central axis C _L, curve line symmetrical substantially bell-shaped or substantially trapezoidal in the width direction D _W a central axis C _L as a reference, and the like. Thus, in the central region of deodorant arrangement area T _C relatively large basis weight of deodorant, the end regions of the deodorant arrangement area T _C relatively small basis weight of deodorant. In other words, the basis weight of the deodorant at any position in the central region of deodorant arrangement area T _C is deodorant at any position at both ends in the region of deodorant arrangement area T _C Less than the basis weight. Therefore, deodorant arrangement area T _C is deodorant relatively large basis weight in the central region, deodorant relatively small basis weight end regions, respectively on the surface of the carrier sheet 5 ' It can be said that it is the area | region in planar view arrange | positioned.

Next, an example of a change in the first direction of the basis weight distribution of the deodorant at the predetermined position in the longitudinal direction D _L of deodorant arrangement area T _C. Here, the change of the basic weight of the deodorant in the cross section along the II-II 'line of FIG. 1 is demonstrated as an example. That is, the predetermined position is the position of intersection of the central axis C _W and the central axis C _L, the first direction is the width direction D _W. FIG. 5 is a schematic diagram for explaining an example of the movement of the deodorant of the absorbent article 1 according to the embodiment, and the basis weight of the deodorant in the cross section taken along the line II-II ′ in FIG. 1. It shows a change. However, Fig.5 (a) shows distribution of the basic weight of the deodorizer before using the absorbent article 1 (when unused), and is substantially the same as FIG. FIG. 5B shows the basis weight distribution of the deodorant while the absorbent article 1 is being deformed when the absorbent article 1 is used (at the start of use). FIG.5 (c) shows distribution of the basic weight of a deodorant in the middle of using the absorbent article 1 (at the time of use). In addition, the vertical direction toward the drawing is the vertical direction, and the basis weight of the deodorant is represented by the thickness of the figure in the drawing.

As shown in FIG. 5 (a), in the time it not used, in the width direction D _W deodorant arrangement area T _C, basis weight QM0 of deodorant in the central region of the end regions of both sides of the central region vanishing The deodorant is arranged in advance so as to be larger than the basis weight QE0 of the odorant (as shown in FIG. 4). In this case, there is a relationship of approximately QM0 >> QE0. Subsequently, as shown in FIG. 5B, when the wearer wears the absorbent article 1 on the underwear, for example, the absorbent article 1 is sandwiched between the roots of the wearer's legs. Accordingly, in the width direction D _W, is convex to the skin-facing surface side in a middle region, ridge extending in the longitudinal direction D _L is deformed so as to form. As a result, in the vertical direction, the central region is a relatively high position, and both end portions are relatively low positions. Here, the deodorant which is not held on the carrier sheet 5 ′ by the adhesive in the deodorant-containing absorbent material layer 4 can move to a certain extent in the surface direction of the carrier sheet 5 ′. . Therefore, the central region has a relatively high position and both end regions have relatively low positions, so that the deodorant in the central region has a relatively low position in the vertical direction due to gravity, that is, both end regions. Will be moved to. Therefore, the basis weight of the deodorant in the central region decreases to QM1 (<QM0), and the basis weight of the deodorant in both end regions increases to QE1 (> QE0). However, QM1> QE1. Further, as shown in FIG. 5 (c), in use, for example, the absorbent article 1 is further moved to the skin facing surface side in the central region in the width direction _DW due to movement or vibration of the base of the wearer's feet. It is deformed to have a convex shape. As a result, in the vertical direction, the central region is at a relatively higher position, and both end regions are at a relatively lower position. Along with this, the deodorant in the central region is further moved to a relatively low position in the vertical direction, that is, both end regions due to gravity. That is, the basis weight of the deodorant in the central region is reduced to QM2 (<QM1), and the basis weight of the deodorant in both end regions is increased to QE2 (> QE1). However, QM2≈QE2.

In this way, when the absorbent article 1 has a relatively high position and a low position in the vertical direction due to deformation during use of the absorbent article 1 or movement of the wearer, The deodorant moves from the higher position to the lower position. Therefore, in the absorbent article 1, the basis weight of the deodorant at a relatively high position is set in advance to be larger than the basis weight of the deodorant at a relatively low position. As a result, even if the deodorant moves from a relatively high position part to a low position part, only the deodorant moves from a part with a high basis weight to a part with a small basis weight. The amount of deodorant at can be secured. That is, by attaching a distributed basis weight of deodorant deodorant arrangement area T _C prior to use, by deformation and the wearer's movements during use, that uneven basis weight of deodorant occurs Can be suppressed. Here, in the vertical direction, a relatively high position in section through the excretory opening contact region T _S is generally first contacted (absorbed) can be referred to locations when the excrement is excreted. Therefore, it is possible to ensure an appropriate amount of deodorant in the region where excreta is discharged, regardless of the influence of deformation and body posture in the absorption layer.

Here, as the absorbent article 1 that is convex with respect to the skin facing surface when the wearer wears the absorbent article 1 on the underwear, for example, a light incontinence pad for women, a panty liner, and a sanitary Napkin etc. are mentioned. In these cases, it is preferable to arrange the deodorant in the deodorant arrangement area T _C having a basis weight distribution of deodorant described in FIG. That is, the distribution is a distribution in which the basis weight of the deodorant is relatively high in the central region, and the basis weight of the deodorant is relatively low in both end regions. For example, an upward convex curved distribution having a peak in the central region, specifically, a substantially bell-shaped or trapezoidal curved distribution. In addition, when a plurality of convex ridges are formed on the skin facing surface side, the distribution of the deodorant may be the above-mentioned convex distribution for each ridge.

4 and 5 described above, the width direction _DW has been described as an example of the first direction. However, the present invention is not limited to this example, and the first direction may be another direction. It may be not only one direction but also a plurality of directions. Examples of other directions, during use of the absorbent article 1 (start), the absorbent article 1 is a convex skin-facing surface side in a middle region of the longitudinal direction D deodorant arranged in _L region T _C, The case where it deform | transforms so that the wrinkles extended in the width direction _DW may be mentioned. In this case, the longitudinal direction D relatively increased basis weight of deodorant in the central region of the _L, is relatively small basis weight on both sides of the end regions in deodorant of the central region of the longitudinal direction D _L . Examples of multiple directions, the excretion within the contact region T _S of the absorbing layer, the bulky portion of the substantially elliptical shape and the like may provided, for example. Such a bulky portion is generally mountain-shaped, and the cross section in any direction is convex toward the skin facing surface, and the first direction can be said to be omnidirectional.

In the absorbent article 1 of the present embodiment, the deodorant-containing absorbent layer 4 of the deodorant deodorant-containing layer S _A2 is held in the carrier sheet 5 'by an adhesive a deodorant (retention deodorizing Agent) and a deodorant (non-retained deodorant) that is not held on the carrier sheet 5 ′ by the adhesive. In the deodorant-containing absorbent layer 4 held and included by the carrier sheet 5 (upper sheet) and the carrier sheet 5 ′ (lower sheet), the non-retaining deodorant is the carrier sheet 5 (upper sheet). And the carrier sheet 5 ′ (lower surface sheet) so as to be movable, and the deodorant-containing layer S _A2 can be moved as shown in FIG. 5 and FIG. Thus, as a method of arrange | positioning some deodorizers so that a movement is possible, the following method is mentioned, for example. That is, compared with the normal case where the movement of the deodorant is not intended, the adhesive amount and the application area of the adhesive on the carrier sheet 5 ′ are reduced, and the gap in the application pattern is increased. Deodorant-containing absorption, such as reducing the basis weight of liquid-retaining substances other than the deodorant in the deodorant-containing absorbent material layer 4 or increasing the basis weight of the deodorant A method of increasing the relative density of the deodorant of the material layer 4, a method of making the particles of the deodorant easy to move, such as reducing the particle size of the particulate deodorant or smoothing the surface, Combinations of these are included.

  Thereby, the non-holding deodorant can move according to the movement (or posture) of the absorbent article 1, that is, according to the movement and posture of the user. For example, when the user lies down sideways, the horizontal portion of the absorbent layer is vertically downward, so that the deodorant can move to the horizontal portion by gravity. As a result, even when the user releases excrement sideways and the excrement is directed to the lower horizontal part by gravity, the deodorant has moved to the horizontal part in advance, so the odor of the excrement Can be reliably suppressed. That is, an appropriate amount of deodorant can be secured in the region where excrement is discharged regardless of the influence of deformation or body posture in the absorption layer.

In this case, in the process of manufacturing the absorbent article 1, in the step of disposing the deodorant deodorant arrangement area T _C, the basis weight of the deodorant in the deodorant arrangement area T _C is in Figure 4 of the The deodorant is placed on the carrier sheet 5 ′ so as to have the described basis weight distribution of the deodorant. As the placement method, for example, along the width direction D _W, disposed respectively deodorant supply pipe deodorant arrangement area T _C and for regions on both sides, extinguishing of deodorant arrangement area T _C There is a method of increasing the supply amount of the deodorant in the odorant supply pipe and decreasing the supply amount of the deodorant in the deodorant supply pipes for the regions on both sides thereof. Alternatively, for example, from above the area of the carrier sheet 5 'surfaces deodorant arrangement area T _C, by supplying a vigorously deodorant at a preset momentum or energy, the deodorant arrangement area T _C while depositing the deodorant, deodorant top of the deposited deodorant and a method to make spread to both sides in the width direction D _W in and deodorant arrangement area T _C collapse.

In the absorbent article 1 of the present invention, the structure of the deodorant arrangement area T _C and the adhesive coating regions T _H is not limited to the above-described configuration. For example, deodorant arrangement area _{T C} lengthwise direction _D across the _L edge _{E LC,} E _'LC or width direction _{D W} both edges in _{E WC,} E' one of _WC is, adhesive coated area _{T H} both edges _{E LH} in the longitudinal direction, 'both edges _{E WH} in _LH or width direction _{D W,} E' E than _WH, may have a structure positioned on the inner side in the longitudinal direction _{D L} or width direction _{D W} . Also in the absorbent article having such a structure, it is possible to keep a certain degree of deodorant deodorant-containing layer to the adhesive coated area T _H defined by adhesive, deodorant Can be sufficiently prevented from becoming unevenly distributed.

Furthermore, the absorbent article 1 of this embodiment is the same as the absorbent layer (absorbent sheet S _A1 and deodorants containing layer S _A2), greater than the peripheral portion bulk of the absorbent layer to the excretory opening contact region T _S portion That is, you may provide the bulky part (not shown). Bulky unit to a position corresponding to the excretory opening, for example, formed in a central region of the excretory opening contact region T _S. The bulky portion is formed on at least one of the absorbent sheet _SA1 and the deodorant-containing layer _SA2 . The bulky portion is formed thicker than the peripheral portion in the thickness direction _DT . Here, the absorbent article 1 is deformed so as to have a convex shape upward (skin facing surface side) by being sandwiched between the bases of the wearer's legs during use. The thicker the portion, the harder it is to deform, and the thinner the portion, the easier it is to deform. And since the absorbent article 1 of this embodiment has a thick bulky part, the bulky part is not deformed, the peripheral part of the bulky part is deformed and faces vertically downward, and has a generally convex shape. It becomes. That is, it can be said that the bulky portion is a portion that is relatively high in the vertical direction during use. Therefore, in this case, it is preferable to arrange the deodorant so that the basis weight of the bulky portion is larger than the basis weight of the peripheral portion. Thereby, it is possible to ensure an appropriate amount of deodorant in the region where excrement is discharged, regardless of the influence of deformation or posture in the absorption layer.

Moreover, the absorbent article 1 of this embodiment is provided with the pressing part 14, as shown in FIG. Compressing portion 14 is located outside the width direction D _W against excretion opening contact region T _S, it extends in the longitudinal direction D _L. Compressing portion 14 suppresses diffusion of excrement in the width direction D _L, it diffuses longitudinally D _L. In the present embodiment, pressing portion 14 is a compression grooves formed by embossing, are extended on both outer sides of the excretory opening contact region T _S in the width direction D _W. Further, in the present embodiment, compression section 14 (compressed groove) is a groove extending from the surface of the surface sheet 2 in the thickness direction D _T to the inside of the absorbent sheet S _A1, the lower portion of the bottom of the compressed groove ( A non-skin facing surface side portion) is formed with a high-density portion 15 having a fiber density higher than that of the surroundings by pressing. In addition, the pressing part 14 (squeezing groove | channel) may be a groove | channel which reaches to the inside of the deodorant content layer _SA2 , for example, the carrier sheet 5, from the surface of the surface sheet 2 to thickness direction _DT .

In the absorbent article 1 Thus, the central region in the width direction D _W, i.e. on both outer sides in the width direction D _W in areas of relatively high position in the vertical direction, reaches the interior of the deodorizing agent-containing layer S _A2 When the pressing part 14 (squeezing groove | channel) is formed, it can prevent that the deodorizer of the part which becomes a high position spreads too much in the width direction _DW . That is, it is possible to prevent a situation where the deodorant spreads too much in the width direction _DW due to the influence of deformation and body posture, and the deodorant in the region where excreta is discharged becomes insufficient. Thereby, it is possible to ensure an appropriate amount of deodorant in the region where excrement is discharged, regardless of the influence of deformation or posture in the absorption layer.

Moreover, the absorbent article 1 of this embodiment is provided with the some fixing | fixed part 33 arrange | positioned at predetermined intervals, in order to fix the absorbent article 1 to clothing as shown in FIG. Examples of the fixing portion 33 include an adhesive and a pressure-sensitive adhesive sheet. When the absorbent article 1 is individually packaged, the absorbent article 1 is detachably fixed to a substantially rectangular packaging sheet (not shown) by the plurality of fixing portions 33 and is packaged by the packaging sheet. However, the packaging sheet has a peeling sheet (not shown) in each of the portions that are in contact with the plurality of fixing portions 33, and the absorbent article 1 is fixed to the packaging sheet so as to be peelable. Thereby, the absorbent article 1 is peeled from the packaging sheet at the time of use, and is re-fixed to the wearer's clothes by the plurality of fixing portions 33. The absorbent article 1 of this embodiment, on the opposite side of the surface and the deodorizing agent-containing layer S _A2 of the outer covering sheet 3, the longitudinal direction D _L extending in the width direction D _W center point (or center axis C _L ) With a pair of fixing portions 33 arranged at a predetermined interval.

In the absorbent article 1 having such a configuration, each fixing portion 33 is adhered to a wearer's clothes, for example, underwear, and therefore, the portions corresponding to the pair of fixing portions 33 in the absorbent article 1 are in close contact with the underwear. To have higher rigidity. Here, when the absorbent article 1 is used, the portion of the absorbent article 1 that faces the wearer's buttocks is sandwiched between the bases of both feet, and is compressed from the outer side to the inner side in the width direction _DW . At this time, the portion corresponding to the pair of fixing portions 33 among the portions facing the collar portion has high rigidity, and therefore the portion itself is not compressed in the width direction _DW , and is a portion between the pair of fixing portions 33. (width corresponds to a portion on the central axis C _L direction D _W) that bulges convexly skin-facing surface side (upper side), and relief compressive forces. As a result, while the portion corresponding to the pair of fixing portions 33, convex ridge extending in the longitudinal direction D _L is formed. That is, it can be said that a portion between the pair of fixing portions 33 is a portion that is relatively high in the vertical direction during use. Therefore, in this case, the basis weight of the deodorant at a portion corresponding to between the pair of fixing portions 33, that is, at a portion other than the portion corresponding to the pair of fixing portions 33 is the portion corresponding to the pair of fixing portions 33. to be greater than the basis weight of the deodorant, it is preferable to arrange the deodorant deodorant arrangement area T _C. Thereby, an appropriate amount of deodorant can be secured in the region where excrement is discharged regardless of the influence of deformation and body posture in the absorption layer.

Incidentally, the absorbent article 1 in the longitudinal direction D located outside the _L, may further include a compressing portion that extends in the width direction D _W against excretion opening contact region T _S. Compressing portion is a groove extending from the surface of the surface sheet 2 in the thickness direction D _T to the inside of the absorbent sheet S _A1 or deodorant containing layer S _A2, it is formed by embossing. Such compression unit (compression groove), as well as to suppress diffusion of excrement in the longitudinal direction D _L, diffuses in the width direction D _L. Central area in the longitudinal direction D _L, i.e. on both outer sides in the longitudinal direction D _L in areas of relatively high position in the vertical direction, compressing portion 14 to reach the inside of the deodorizing agent-containing layer S _A2 (compressed groove) is formed if it is, it can prevent the deodorant of areas of high position is too spread in the longitudinal direction D _L. That can prevent the deodorant due to the influence of deformation or posture is too wide in the longitudinal direction D _L, deodorant discharged the region of excrement is insufficient. Thereby, it is possible to ensure an appropriate amount of deodorant in the region where excrement is discharged, regardless of the influence of deformation or posture in the absorption layer.

In the absorbent article 1 of the present embodiment, the absorbent sheet S _A1 can be produced by the following method. First, between the two liquid-permeable sheets 7 and 7 ′ between the two liquid-permeable sheets 7 and 7 ′ coated with the adhesive G, the above-described absorbent polymer 6 (absorbent material). Arrange in the central area in the width direction. Next, two absorbent polymers 6 are placed so that the absorbent polymer 6 does not exist in regions adjacent to both sides in the width direction of the region where the absorbent polymer 6 is disposed (absorbent polymer placement region 11). It is sandwiched between the liquid permeable sheets 7 and 7 '. Thereafter, the regions where the absorbent polymer 6 on both side edges in the width direction of the two liquid-permeable sheets 7 and 7 'are not disposed (absorbent polymer non-arranged region 12) are respectively folded lines extending in the longitudinal direction. Fold along the width direction (so-called forehead winding). The absorbent sheet S _A1 is thus formed.

In addition, when folding the absorbent polymer non-arrangement region 12 on both side edges in the width direction _DW of the two liquid-permeable sheets 7 and 7 'inside the width direction _DW , the skin facing surface side or the non-skin facing surface You may fold in any direction of the side. By folding the absorbent polymer non-arranged regions 12 of the two liquid-permeable sheets 7 and 7 'sandwiching the absorbent polymer 6 in this manner, the absorbent polymer 6 is difficult to leak from the absorbent sheet S _A1. At the same time, the folded portion (folded portion) of the absorbent sheet S _A1 has a four-layer laminated structure, thereby increasing the rigidity. Here, the absorbent article 1 is compressed from the outer side to the inner side in the width direction _DW by being sandwiched between the bases of both feet during use. At this time, since the folding part has high rigidity among the parts to be compressed of the absorbent article 1, the part itself is not compressed in the width direction _DW , that is, the part between the two, that is, the absorbent sheet S _A1 . The center part is deformed so as to rise to the skin facing surface side (upper side), thereby releasing the compressive force. As a result, a convex ridge extending in the longitudinal direction is formed at the central portion (clamping portion) between the end portions (non-clamping portion). That is, it can be said that the convex collar is a portion that is relatively high in the vertical direction during use. Therefore, in this case, the basis weight of the deodorant of the deodorant-containing layer S _A2 corresponding to the sandwiched portion (convex ridge) is larger than the basis weight of the deodorant corresponding to the non-nip portion. It is preferable to arrange a deodorant in Thereby, it becomes possible to ensure an appropriate amount of deodorant in the area where excreta is discharged.

Next, the material of the absorbent sheet S _A1 (first absorption layer) in the present embodiment will be described. First, in the absorbent material including the absorbent polymer 6, the absorbent polymer 6 is not particularly limited as long as it is a polymer that can absorb and retain water. For example, a water-soluble polymer is appropriately crosslinked. And polymers having a three-dimensional network structure. Specific examples include starch-based, acrylic acid-based, and amino acid-based particulate or fibrous polymers. Since such an absorptive polymer absorbs not only water but also an odor composed of an ammonia component or the like, a deodorizing effect can be exhibited. Further, as the absorbent polymer 6, a deodorant component-containing absorbent polymer in which absorbent polymer particles and an arbitrary deodorant component are integrated can be suitably used. The deodorant component means a component that can eliminate odors caused by these odor components by adsorbing odor components such as ammonia and dimethylamine. Examples of such deodorizing components include activated carbon; alumina; zeolite; cyclodextrin; zeolite substituted with bactericidal metal cations such as silver and copper, and quaternary ammonium having a bactericidal action on the surface of activated carbon, alumina, and the like. Bactericidal deodorant component such as a complex to which a salt compound is attached; a bactericide-containing absorbent polymer that disinfects bacteria that decomposes urea in the urine to produce an ammonia component; or two or more of these deodorant components Combinations are mentioned. The absorbent material is not particularly limited as long as it contains the absorbent polymer 6 described above, and may include a liquid-retaining substance composed of water-absorbing fibers such as pulp in addition to the absorbent polymer 6. Further, the liquid permeable sheets 7 and 7 ′ are not particularly limited as long as they are liquid permeable sheets. For example, hydrophilic such as air-through nonwoven fabric, spunbond, laminated nonwoven fabric (for example, SBS nonwoven fabric), tissue, etc. Nonwoven fabrics can be used.

Further, as shown in FIGS. 2 and 3, the absorbent article 1 of this embodiment, the folds of the both end edge in the width direction D _W of the absorbent sheet S _A1, perfumes coating region extending in the longitudinal direction D _L T _F and T ′ _F are provided, and even if the odor is diffused, it can be masked by the scent.

In the absorbent article 1 of this invention, the structure of deodorant content layer _SA2 is not limited to the above-mentioned structure. For example, the deodorant-containing layer S _A2 may be formed by sandwiching a single liquid-permeable sheet together with an absorbent polymer and / or a liquid-retaining substance in any form of cyclodextrin such as a granular material, or Surround it with three or more liquid-permeable sheets, or cover it from the non-skin-facing surface side with one liquid-permeable sheet (cyclodextrin-coated sheet) as in other embodiments described later. Can be configured. As the liquid permeable sheet used for the carrier sheet in the present invention, for example, any sheet-like fiber structure such as a nonwoven fabric (including a tissue) made of an aggregate of fine fibers such as pulp and a woven fabric can be used.

Further, in the absorbent article 1 of the present embodiment, the deodorant contained in the deodorizing agent-containing absorbent layer 4 of the deodorant-containing layer S _A2, include materials containing deodorant component. The deodorant component means a component that can eliminate the odor caused by these odor components by adsorbing odor components such as ammonia and dimethylamine. Examples of such deodorizing components include activated carbon; alumina; zeolite; cyclodextrin; zeolite substituted with bactericidal metal cations such as silver and copper, and quaternary ammonium having a bactericidal action on the surface of activated carbon, alumina, and the like. Bactericidal deodorant component such as a complex to which a salt compound is attached; a bactericide-containing absorbent polymer that disinfects bacteria that decomposes urea in the urine to produce an ammonia component; or two or more of these deodorant components Combinations are mentioned. In particular, cyclodextrin is preferable in terms of deodorizing performance.

  Here, cyclodextrin is a cyclic oligosaccharide in which glucopyranose units are linked by α-1,4 bonds. The cyclodextrin used in the absorbent article of the present invention is not particularly limited, and is chemically modified (for example, methylated or acetylated) in addition to α-, β-, γ-cyclodextrin and / or a mixture thereof. Α-, β-, γ-cyclodextrin and / or a mixture thereof can be used. The form of cyclodextrin used in the absorbent article of the present invention is not particularly limited, and various forms can be used. From the viewpoint of dispersibility and ease of handling during production, the particle size is reduced with a binder. It is preferable to use it as a cyclodextrin powder adjusted to the above.

Such a deodorant-containing layer S _A2 is a hot-melt adhesive comprising the deodorant-containing absorbent material layer 4 containing the cyclodextrin as a deodorant and a mixture of an absorbent polymer and a liquid-retaining substance. It can be obtained by using an agent and joining the two carrier sheets 5, 5 ′. Specifically, with the carrier sheet 5 ′ (deodorant holding sheet) made of tissue or the like facing up on the surface facing the wearer's skin, the carrier sheet 5 ′ is stationary or being conveyed, an adhesive coating step of coating along a direction corresponding to the adhesive on the surface of the skin-facing surface side of the carrier sheet 5 'in the longitudinal direction D _L of the absorbent article 1, a cyclodextrin, adhesive coating and Engineering has been at least deodorant arrangement step of arranging on the surface of the adhesive of the adhesive coated area T _H, the absorbent polymer and the liquid retention material: a mixture of (exemplified pulp), the carrier sheet 5 ' at least the adhesive and by arranging on the surface of the cyclodextrin, the deodorant-containing absorbent layer forming step of forming a 4 deodorant-containing absorbent layer in the adhesive coated area T _H in, deodorants On the skin facing surface side of the contained absorbent layer 4 In addition, the above-described deodorant-containing layer S _A2 can be obtained by the carrier sheet arranging step of arranging the carrier sheet 5 with or without an adhesive.

Next, another embodiment will be described. In the present embodiment, differences from the embodiment described with reference to FIGS. 1 to 5 will be mainly described. FIG. 6 is a cross-sectional view taken along the line II-II ′ of FIG. 1 in the absorbent article 1 of another embodiment. The absorbent article 1 according to this embodiment has the same configuration as that of the embodiment described with reference to FIGS. 1 to 5 except for the following. That is, the layer containing the deodorant (exemplary: cyclodextrin) (in the above embodiment, the deodorant-containing absorbent material layer 4) is the deodorant layer 4 ′ composed of only the deodorant, At least a part of the deodorant is held on the surface (holding surface) on the non-skin-facing surface side of the liquid-permeable sheet 7 ′ located between the surface sheet 2 and the deodorant layer 4 ′, and the liquid is permeable. The absorbent sheet 7 ′ absorbs the absorbent material together with the liquid permeable sheet 7 that is disposed on the skin-facing surface side of the absorbent material while holding the absorbent material such as the absorbent polymer 6 on the surface opposite to the retaining surface. The sheet S _A1 is formed, and the deodorant is coated from the non-skin facing surface side by the deodorant coating sheet 10 made of a liquid-permeable sheet such as a tissue (that is, the deodorant). The content layer S _A2 includes the deodorant layer 4 ′ and the deodorant coating sheet 10).

  In the absorbent article 1 of the present embodiment, since the layer containing the deodorant (example: cyclodextrin) is composed of only the deodorant, excrement such as urine discharged from the wearer is deodorant. The thickness of the layer containing the deodorant can be reduced, and any product design such as thinning according to the amount of absorption can be realized.

Next, still another embodiment will be described. In the present embodiment, differences from the embodiment described with reference to FIGS. 1 to 5 will be mainly described. 7-8 has shown the structure of the absorbent article 1a (light incontinence pad (for men)) according to this embodiment. However, FIG. 7 is a plan view showing a configuration of the absorbent article 1a in a developed state. FIG. 8 is a sectional view taken along line VIII-VIII ′ of FIG. The absorbent article 1a according to the present embodiment has the same configuration as that of the embodiment described with reference to FIGS. 1 to 5 except for the following. That is, making the shape of men, the peak of the basis weight of the deodorant is not on the central axis C _L (described later), it is, to have no absorbent sheet in the absorbent layer. However, the absorptive article 1a of this embodiment may be provided with an absorptive sheet like the embodiment explained using the above-mentioned FIGS.

Figure 9 is a schematic diagram for describing the distribution of the deodorant deodorant arrangement area T _C in a cross section taken along line VIII-VIII 'of FIG. 7 of the absorbent article 1. The horizontal axis indicates the position of the absorbent article 1 in the width direction _DW , the vertical axis indicates the basis weight of the deodorant, and the curve BW is a curve indicating the distribution of the basis weight of the deodorant. In this embodiment, a deodorant is arrange | positioned on carrier sheet 5 'surface so that distribution of the basic weight of a deodorizer may become the curve BW shown in FIG. However, the curve BW has a respective peak to the end regions between the end portions and the central axis C _L of deodorant arrangement area T _C, that is, a curve having two peaks. The materials other than the deodorant in the deodorant-containing layer S _A2 are almost the same regardless of the location. Therefore, the basis weight of the deodorant is near the peak of the end regions of the deodorant arrangement area T _C is relatively large, the basis weight of the deodorant in the central area of deodorant arrangement area T _C is relatively small. Therefore, deodorant arrangement area T _C is deodorant relatively large basis weight on both ends regions, deodorant relatively small basis weight in the central region, each on the surface of the carrier sheet 5 ' It can be said that it is the area | region in planar view arrange | positioned.

Next, an example of a change in the first direction of the basis weight distribution of the deodorant at the predetermined position in the longitudinal direction D _L of deodorant arrangement area T _C. Here, as an example, the change in the basis weight of the deodorant in the cross section along the line VIII-VIII ′ in FIG. 7 will be described. That is, the predetermined position is the position of intersection of the central axis C _W and the center axis C _L, the first direction is the width direction D _W. FIG. 10 is a schematic diagram for explaining an example of the movement of the deodorant of the absorbent article 1a according to the embodiment, and the basis weight of the deodorant in the cross section taken along the line VIII-VIII ′ of FIG. It shows a change. However, Fig.10 (a) shows the distribution of the basic weight of the deodorizer before using the absorbent article 1a (when unused), and is substantially the same as FIG. FIG.10 (b) shows distribution of the basic weight of the deodorizer in the middle of deforming the absorbent article 1a when using the absorbent article 1a (at the start of use). FIG.10 (c) shows the distribution of the basic weight of a deodorant in the middle of use (at the time of use) of the absorbent article 1a. In addition, the vertical direction toward the drawing is the vertical direction, and the basis weight of the deodorant is represented by the thickness of the figure in the drawing.

As shown in FIG. 10 (a), at the time of non-use, in the width direction D _W deodorant arrangement area T _C, basis weight QM0 of deodorant in the central region of the end regions of both sides of the central region vanishing A deodorant is arranged in advance so as to be less than the basis weight QE0 of the odorant (as shown in FIG. 9). In this case, there is a relationship of approximately QM0 << QE0. Subsequently, as shown in FIG. 10B, when the wearer (male) wears the absorbent article 1a on the underwear at the start of use, the absorbent article 1a wraps the wearer's penis and scrotum. Thereby, in the width direction _DW , it deform | transforms so that the recessed part which becomes a recessed may be formed in the skin opposing surface side in a center area | region. As a result, in the vertical direction, the central region is a relatively low position, and both end portions are relatively high positions. Here, as described above, the deodorant that is not held on the carrier sheet 5 ′ by the adhesive in the deodorant-containing absorbent material layer 4 can move to a certain extent in the surface direction of the carrier sheet 5 ′. It is like that. Therefore, the central region is at a relatively low position, and the both end regions are at a relatively high position, so that the deodorant in the both end regions is relatively low in the vertical direction by gravity, that is, the central region. Will be moved to. Therefore, the basis weight of the deodorant in the central region is increased to QM1 (> QM0), and the basis weight of the deodorant in both end regions is decreased to QE1 (<QE0). However, QE1> QM1. Furthermore, as shown in FIG. 10C, when in use, for example, the absorbent article 1 has a further concave shape on the skin facing surface side in the central region in the width direction _DW due to movement or vibration of the wearer's body. It is transformed to become. As a result, in the vertical direction, the central region is at a relatively higher position, and both end regions are at a relatively lower position. Along with this, the deodorant in the both end regions moves further to a relatively low position in the vertical direction, that is, the central region due to gravity. That is, the basis weight of the central region deodorant is increased to QM2 (> QM1), and the basis weight of the deodorant in both end regions is decreased to QE2 (<QE1). However, QM2≈QE2.

  In this case as well, the basis weight of the deodorant is increased in advance in the relatively high part than in the relatively low part. Therefore, even if a movable non-retaining deodorant moves from a relatively high position part to a low position part, the deodorant only moves from a part with a high basis weight to a part with a small basis weight. It is possible to secure the amount of the deodorant at the high position. Therefore, it is possible to ensure an appropriate amount of deodorant in the region where excrement is discharged, regardless of the deformation of the absorbent layer and the influence of the posture.

Here, the light incontinence pad for men, a disposable diaper, etc. are mentioned as the absorbent article 1 which becomes a concave state with respect to the skin opposing surface side when a wearer wears the absorbent article 1 in underwear. In these cases, it is preferable to arrange the deodorant in the deodorant arrangement area T _C having a basis weight distribution of deodorant described in FIG. That is, the distribution is a distribution in which the basis weight of the deodorant is relatively low in the central region, and the basis weight of the deodorant is relatively high in both end regions.

  Moreover, the absorption layer of the absorbent article shown in the above embodiments includes a movable non-retaining deodorant. Therefore, the non-holding deodorant can move according to the movement (or posture) of the absorbent article, that is, according to the movement and posture of the user. For example, when the user lies down sideways, the horizontal portion of the absorbent layer is vertically downward, so that the deodorant can move to the horizontal portion by gravity. As a result, even when the user releases excrement sideways and the excrement is directed to the lower horizontal part by gravity, the deodorant has moved to the horizontal part in advance, so the odor of the excrement Can be reliably suppressed. Further, for example, when the user gets up, the central portion of the absorption layer is vertically downward, so that the deodorant can move to the central portion by gravity. As a result, even if the user gets up from the side and releases the excrement, and the excrement is directed to the lower central part by gravity, the deodorant has moved to the central part in advance, so the excrement The odor can be reliably suppressed. That is, an appropriate amount of deodorant can be secured in the region where excrement is discharged regardless of the influence of deformation or body posture in the absorption layer.

  The absorbent article of the present invention is not limited to the above-described embodiments, and can be appropriately combined and changed within a range not departing from the object and spirit of the present invention.

DESCRIPTION OF SYMBOLS 1 Absorbent article 2 Top sheet (liquid permeable layer)
3 Back sheet (liquid impervious layer)
4 deodorant-containing absorbent layer T _S excretory opening contact region T _C deodorant arrangement area T _H adhesive coated areas

Claims (8)

An absorption having a longitudinal direction, a width direction, and a thickness direction, comprising a liquid permeable layer, a liquid impermeable layer, and an absorbent layer positioned between the liquid permeable layer and the liquid impermeable layer. A sex product,
The absorbent layer has a deodorant and includes a deodorant arrangement region including an excretory opening contact region of the absorbent article,
The deodorant has a basis weight of a portion that is relatively high in the vertical direction when the absorbent article is used in a cross section along the first direction passing through the excretory opening contact area in the deodorant arrangement region. Arranged in the deodorant arrangement region so that the amount is larger than the basis weight of the portion that is relatively low position,
Absorbent article. The first direction is the width direction.
The absorbent article according to claim 1. The absorbent layer includes a bulky portion formed in the excretory opening contact area higher than the peripheral portion,
In the deodorant arrangement region, the portion that is relatively high in the vertical direction is the bulky portion,
The absorbent article according to claim 1 or 2. A plurality of fixing portions arranged at predetermined intervals to fix the absorbent article to clothes on the surface of the liquid impermeable layer opposite to the absorbent layer;
In the deodorant placement region, the portion that is relatively high in the vertical direction is a portion other than the portion corresponding to the plurality of fixed portions in the deodorant placement region.
The absorbent article as described in any one of Claims 1 thru | or 3. On both sides of the width direction of the portion that is relatively high in the vertical direction in the deodorant arrangement region, a pressing portion extending in the longitudinal direction is formed,
The absorbent article as described in any one of Claims 1 thru | or 4. The absorbing layer is
A first absorbent layer disposed on the liquid permeable layer side;
A second absorbent layer disposed between the first absorbent layer and the liquid impermeable layer and including the deodorant placement region;
The first absorption layer includes
An absorbent polymer;
A liquid permeable sheet that sandwiches the absorbent polymer between the liquid permeable layer side surface and the second absorbent layer side surface of the absorbent polymer,
The liquid permeable sheet is:
A sandwiching portion for sandwiching the absorbent polymer;
A non-nipping portion that is located on both outer sides of the holding portion in the width direction, extends along the longitudinal direction, and does not sandwich the absorbent polymer;
The non-pinch portion is folded along a fold line extending along the longitudinal direction;
The portion that is relatively high in the vertical direction in the deodorant arrangement region is a portion corresponding to the holding portion,
The absorbent article as described in any one of Claims 1 thru | or 5. The absorbing layer is
A deodorant-containing absorbent layer comprising the deodorant and an absorbent material;
An upper sheet and a lower sheet that sandwich and contain the deodorant-containing absorbent layer from both sides in the thickness direction;
An adhesive formed on at least one of the top sheet and the bottom sheet on the deodorant-containing absorbent layer side,
The absorbent article as described in any one of Claims 1 thru | or 6. The deodorant is
A holding deodorant held on at least one of the top sheet and the bottom sheet by the adhesive;
A non-holding deodorant disposed so as to be movable between the upper sheet and the lower sheet without being held by the upper sheet and the lower sheet by the adhesive,
The absorbent article according to claim 7.

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