JP2017158654A - Absorbent article - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an absorbent article which comprises a deodorization function and which allows a user to properly grasp a replacement timing.SOLUTION: An absorbent article comprises a longitudinal direction D, a width direction D, and a thickness direction, and comprises a liquid permeable layer 2, a liquid non-permeable layer, and an absorber layer which is disposed between the liquid permeable layer and the liquid non-permeable layer. The absorber layer comprises: width direction diffusion means 16 disposed on outside of a longitudinal direction to an excretion port contact area Tof the absorbent article, extended in a width direction, and diffuses excrement to the width direction; and a deodorant arrangement area Textended in the longitudinal direction and positioned on a center area of the width direction. The width direction diffusion means crosses the deodorant arrangement area. Both end parts of the width direction diffusion means in the width direction are positioned outside of the deodorant arrangement area in the width direction.SELECTED DRAWING: Figure 3

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.

JP 2001-353474 A

  However, in the absorbent article of Patent Document 1, if the deodorizing function is too strong, that is, if the amount of the deodorant is too much, the odor of the excrement does not occur even if the amount of excrement absorbed by the absorbent article increases. . Therefore, a wearer cannot grasp | ascertain replacement time with the odor of an absorbent article, and there exists a possibility of missing an appropriate replacement time. Conversely, if the deodorizing function is too weak, that is, the amount of the deodorant is too small, the excrement starts to smell even if the amount of excrement absorbed by the absorbent article is small. For this reason, when the wearer replaces the absorbent article due to the odor of the absorbent article, there is a possibility that it will be earlier than the appropriate replacement time. In any case, with such an absorbent article, it is difficult for the wearer to accurately grasp the replacement time of the absorbent article with the odor of excrement.

  Then, the objective of this invention is providing the absorbent article which can grasp | ascertain replacement | exchange time exactly, having a deodorizing function.

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 is provided on the outer side in the longitudinal direction with respect to the excretion opening contact area of the absorbent article, extends in the width direction, and excretes in the width direction. A width direction diffusing means for diffusing, and a deodorant arrangement region extending in the longitudinal direction and positioned in a central region in the width direction, wherein the width direction diffusing means intersects with the deodorant arrangement region. And the both ends of the said width direction of the said width direction spreading | diffusion means are the absorbent articles located in the outer side of the said width direction of the said deodorant arrangement | positioning area | region.

Since the present absorbent article is configured as described above, when the amount of excreta absorbed by the absorbent article is small during use of the absorbent article, excrement discharged from the excretion opening is mainly And is absorbed in the absorbent material of the absorbent layer while moving in the longitudinal direction. At this time, since the deodorant is arranged in the deodorant arrangement region along the longitudinal direction in which the excrement moves, the odor of the excrement is absorbed by the deodorant and does not leak to the outside. That is, when the amount of excrement absorbed by the absorbent article is small, leakage of excrement odor does not occur.
On the other hand, when the amount of excreta absorbed by the absorbent article is large, that is, when the time for replacement is approaching, excrement that is not absorbed in the absorbent material of the absorbent layer further moves in the longitudinal direction and diffuses in the width direction. Reach means. A part of the excrement diffuses in the width direction diffusing means toward both ends in the width direction, and the rest moves in the longitudinal direction beyond the width direction diffusing means as it is. At this time, for the excrement moving in the longitudinal direction beyond the width direction diffusing means, the deodorant is disposed in the deodorant disposition area along the longitudinal direction in which the excrement moves. Is absorbed by the deodorant and does not leak to the outside. On the other hand, with respect to excrement that diffuses toward both ends in the width direction in the width direction diffusing means, the odor of the excrement is not so much absorbed by the deodorant and leaks to the outside. The reason is that the amount of excreta that diffuses in the width direction diffusing means toward both ends in the width direction is larger than that in the case of diffusing without passing through the width direction diffusing means, both ends of the width direction diffusing means. Since the portion and the vicinity thereof are regions outside the deodorant arrangement region, the amount of the deodorant is small or zero, and it is separated from the deodorant arrangement region. That is, when the amount of excrement absorbed by the absorbent article is large, odor is generated at both ends of the width direction diffusing means and in the vicinity thereof due to excrement diffused to both ends of the width direction diffusing means. Become. However, since the amount of excrement that reaches the both ends of the width direction diffusing means among the excrement reaching the width direction diffusing means is relatively small, the amount of odor generated is also small. In other words, the wearer can notice the odor, but the absorbent article can emit an odor that the surrounding people cannot notice. In this manner, an absorbent article having a deodorizing function and capable of grasping the replacement time can be obtained.

(2) Longitudinal diffusion means arranged on both outer sides in the width direction with respect to the deodorant arrangement region, extending in the longitudinal direction, and diffusing excrement in the longitudinal direction, The absorbent article described in 1) may be used.
Since the present absorbent article is configured as described above, the amount of excrement absorbed by the absorbent article increases, and excrement has diffused outward in the width direction with respect to the deodorant placement region. Sometimes, the excrement can be diffused in the longitudinal direction, and the amount of excrement can be increased at or near the end of the longitudinal diffusion means. That is, when the replacement time approaches, the amount of excrement can be increased at the end of the longitudinal diffusion means or in the vicinity thereof, and odor can be easily generated.

(3) The absorbent article according to the above (2), wherein the longitudinal direction diffusing means extends outward in the width direction with respect to the excretory opening contact area.
Since the present absorbent article is configured as described above, the amount of excreta absorbed by the absorbent article increases, and excreted outward in the width direction with respect to the excretion opening contact area for discharging excrement. Even when an object diffuses, the excrement can be reliably diffused in the longitudinal direction, and the amount of excrement can be increased at or near the end of the longitudinal diffusion means. That is, when the exchanging time approaches, the amount of excrement can be increased at the end of the longitudinal diffusion means or in the vicinity thereof, and odor can be easily generated while preventing leakage of excrement.

(4) In the above (2) or (3), the longitudinal direction diffusing means extends outside the width direction diffusing means in the width direction and outside the width direction diffusing means in the longitudinal direction. The absorbent article described may be used.
Since this absorbent article is configured as described above, the amount of excrement absorbed by the absorbent article increases, and when excrement diffuses in the longitudinal direction in the longitudinal diffusion means, it spreads in the width direction. The excrement can be diffused outside the longitudinal direction beyond the means. That is, the excrement can be diffused in a place away from the end of the width direction diffusing means. As a result, when the replacement time approaches, the odor can be easily generated while the excrement does not concentrate, that is, the odor does not become extremely strong.

(5) The top sheet extends in the longitudinal direction, and is disposed between the plurality of flanges adjacent to each other at a predetermined interval in the width direction and the adjacent flanges among the plurality of flanges. The absorbent article according to any one of (1) to (4), further including a plurality of grooves extending in a direction.
Since this absorbent article is comprised as mentioned above, excrement can be easily moved to a longitudinal direction along the groin. As a result, when the amount of excrement absorbed by the absorbent article increases, that is, when the replacement time approaches, the excrement is surely guided to the width direction diffusion means, and the width direction of the width direction diffusion means The odor can be reliably generated by sending it from both ends.

(6) In any one of the above (1) to (5), there is no fold for individual packaging between the excretory opening contact area and the excretion opening contact area and the width direction diffusion means. The absorbent article described may be used.
Since the present absorbent article is configured as described above, the folds do not prevent the excrement from diffusing in the longitudinal direction from the excretory opening contact area, and the excrement is more reliably spread in the width direction. Can be supplied to. Thereby, when the amount of excrement absorbed by the absorbent article increases, that is, when the replacement time approaches, the excrement is surely supplied to the width direction diffusion means, and the width direction of the width direction diffusion means By sending it from both ends, odor can be generated reliably.

(7) The absorbent article according to any one of (1) to (6) above, wherein a fold for individual packaging is provided along the width direction at the position of the width direction diffusing means. .
Since the present absorbent article is configured as described above, when the amount of excrement absorbed by the absorbent article increases, the movement of excrement moving in the longitudinal direction by the fold is suppressed, The excrement in the width direction diffusing means can be reliably diffused in the width direction. That is, excrement can be reliably moved to the vicinity of both end portions in the width direction of the width direction diffusing means. Thereby, when the replacement time approaches, it is possible to reliably generate odor.

(8) The leakage prevention wall further includes a leakage prevention wall extending along the longitudinal direction and fixed to the liquid-permeable layer on both outer sides in the width direction with respect to the excretory opening contact area. (1) to (7) extending in the longitudinal direction to the vicinity of the end portion of the absorption layer more than the width direction diffusing means, and located outside the width direction diffusing means in the width direction. The absorbent article as described in any one of (1) may be sufficient.
Since this absorbent article is configured as described above, the amount of excrement absorbed by the absorbent article increases, and excrement diffuses outward in the width direction with respect to the excretion opening contact area, When the leakage barrier is reached, the excrement can be diffused in the longitudinal direction. That is, the excrement can be delivered toward the end of the width direction diffusing means. Thereby, when the replacement time approaches, the amount of excrement in the vicinity of the end of the width direction diffusing means can be increased, and odor can be easily generated.

(9) Any of the above (1) to (8), wherein the width direction diffusion portion is a groove portion extending in the width direction and reaching the absorption layer from the surface of the liquid permeable layer in the thickness direction. Or an absorbent article according to any one of the above.
Since this absorbent article is configured as described above, the excrement can be reliably supplied to both ends in the width direction because the excrement is highly circulated while the structure is simple.

(10) The liquid impermeable layer further includes a pair of fixing portions that extend in the longitudinal direction on the surface opposite to the absorption layer and are arranged at a predetermined interval across the center point in the width direction. The absorbent article described in the above (9) may be used.
Since the present absorbent article is configured as described above, each fixing portion is adhered to the underwear, so that portions corresponding to the pair of fixing portions in the absorbent article have high rigidity by overlapping with the underwear. Become. Here, at the time of use of an absorbent article, the part which faces a wearer's buttocks in the absorbent article is compressed from the outer side to the inner side in the width direction by being sandwiched between the bases of both feet. At this time, the portion corresponding to the pair of fixed portions among the portions facing the collar portion has high rigidity, so the portion itself is not compressed in the width direction, and the portion between the two (the central point in the width direction) (Corresponding to the portion) is raised to the skin facing surface side (upper side), thereby releasing the compressive force. As a result, a convex collar portion extending in the longitudinal direction is formed between portions corresponding to the pair of fixing portions. By this buttocks, excrement can move reliably in the longitudinal direction.

  ADVANTAGE OF THE INVENTION According to this invention, the absorbent article which can grasp | ascertain replacement | exchange time exactly can be provided, providing a deodorizing function.

Drawing 1 is a top view showing composition of an absorptive article concerning an embodiment. 2 is a cross-sectional view taken along the line II-II ′ of FIG. Drawing 3 is a top view for explaining each field of an absorptive article concerning an embodiment. FIG. 4 is a schematic diagram for explaining the distribution of the deodorant in the deodorant arrangement region in the cross section taken along the line II-II ′ in FIG. 1. Drawing 5 is a mimetic diagram for explaining the function of the width direction diffusion means of the absorptive article concerning an embodiment. Drawing 6 is a mimetic diagram for explaining the function of the longitudinal direction diffusion means and width direction diffusion means of an absorptive article concerning an embodiment. FIG. 7 is a cross-sectional view taken along the line II-II ′ of FIG. 1 of an absorbent article according to another 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 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. Moreover, in the thickness direction _DT of the absorbent article 1, the direction toward the side facing the wearer's skin (the side facing the skin) is referred to as the direction facing the skin and facing the wearer's skin. The direction toward the opposite side (non-skin facing surface side) to the side to be performed is referred to as the non-skin facing surface side direction.

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 in which liquid-permeable holes are formed, and 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 'composed of two liquid-permeable sheets (example: tissue).

  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 the packaging sheet 30 via a separator when the absorbent article 1 is individually packaged, and the absorbent article 1 is reattached to a wearer's underwear when the absorbent article 1 is used. Fix it.

The absorbent article 1, in plan view as shown in FIG. 3, in a substantially central region, 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 that can correspond to the position of the wearer's excretion opening when the wearer wears the absorbent article, that is, the wearer's excretion opening can contact. Refers to the area, the type of absorbent article, specifically the type of absorbent article depending on the type of excrement such as urine, feces, menstrual blood discharged from the wearer, age and sex of the wearer It is an area set appropriately for each. In the present embodiment, excretory opening contact region T _S is a long rectangular shape in the longitudinal direction D _L shown in FIG. 3, the compression grooves, such as width direction diffusing means 16 and longitudinal diffusion means 14 described later The inner area. Incidentally, excretory opening contact region T _S is typically the longitudinal length of about one third of the total length of the longitudinal direction D _L of the absorbent article about the entire width D _W of the absorbent article 1 / 3 length in the width direction. 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. The central region of the excretory opening contact region T _S, bulk part higher than the peripheral portion of the absorbent layer, i.e. may have bulky portion is provided. In that case, the thickness of the bulky portion in the thickness direction _DT is thicker than the thickness of the peripheral portion.

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 arrangement 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 preferably a region extending to the D _L.

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). it is extended in the longitudinal direction D _L, a region located in the central region in the width direction D _W. 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 particular, in the present embodiment, the width direction D _W, easy contact with the first absorbent article 1 is excrement of the wearer, i.e. the range supply amount of excrement is often provided with a deodorant arrangement area T _C Yes.

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. Accordingly, the deodorant arrangement region T _C relatively large basis weight of deodorant, relatively small basis weight of deodorant in the both outer sides of the width direction D _W deodorant arrangement area T _C . In other words, the basis weight of the deodorant at any position of deodorant arrangement region T _C is deodorant at any position in both outward in the width direction D _W deodorant arrangement area T _C Less than the basis weight. Therefore, deodorant arrangement area T _C is relatively large basis weight of deodorant can be said that the region in plan view which is disposed on the surface of the carrier sheet 5 '.

The dimensions of the width direction D _W deodorant arrangement area T _C is not particularly limited smaller than the dimension in the width direction D _W in the width direction diffusing means 16 to be described later, the type (illustrated absorbent article 1: the absorption It is appropriately set according to the type of excrement of the subject, the volume of excreta that can be absorbed, and the like. Preferably, likely first contact with the absorbent article 1 is excrement of the wearer in the width direction D _W, that is, large supply amount of excrement, the inner side than the range in the width direction D _W of the excretory opening contact region T _S Range. Accordingly, the basis weight BW _TH as a boundary between the inside and outside of the deodorant arrangement area T _C is also set. The dimensions of the width direction D _W deodorant arrangement area T _C is typically less than 1/2 of the dimension of the width direction D _W in the width direction diffusing means 16 include a value less than its dimensions.

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 is relatively large in the deodorant arrangement area T _C, deodorants the basis weight in the widthwise direction D _W outside of the arrangement region T _C is such that relatively small, the deodorant is disposed on the carrier sheet 5 '. As the placement method, for example, along the width direction D _W, disposed respectively deodorant supply tube and for the region of its opposite sides for deodorant arrangement area T _C, for deodorant arrangement area T _C There is a method of increasing the supply amount of the deodorant in the deodorant supply pipe and decreasing the supply amount of the deodorant in the deodorant supply pipe 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.

Moreover, the absorbent article 1 is further provided with the width direction diffusion means 16, as shown in FIG. Width direction diffusing means 16 is positioned outside the longitudinally D _L against excretory opening contact region T _S, which extends in the width direction D _W, excrement coming infiltrates into the inside in the width direction D _W Spread. Width direction diffusing means 16, to diffuse the excrement that diffuse topsheet 2 and absorbent layer (absorbent sheet S _A1 and deodorants containing layer S _A2) Medium longitudinally D _L in the width direction D _W There is no particular limitation as long as it has a possible structure. In the present embodiment, the width direction diffusing means 16 are compressed groove, in the longitudinal direction D _L is formed on both outer sides of the excretory opening contact region T _S, excretory opening contact both end portions in the width direction D _W It is located on the outer side than the frequency T _S. Moreover, in this embodiment, the width direction diffusion means 16 (squeezing groove) is a groove that reaches the inside of the deodorant-containing layer _SA2 , for example, the carrier sheet 5 from the surface of the surface sheet 2 in the thickness direction _DT , Formed by embossing. Making the depth of the groove to reach the carrier sheet 5 is preferable in that the absorbent material is not leaked from the deodorant-containing absorbent layer 4 while enhancing the function of the width direction diffusing means 16. Moreover, in this embodiment, the high density part 15 whose fiber density is higher than the periphery is formed in the lower part (non-skin opposing surface side part) of the bottom part of a pressing groove by compression. In addition, the groove | channel which reaches the inside of absorbent sheet _SA1 from the surface of the surface sheet 2 in the thickness direction _DT may be sufficient as the width direction spreading | diffusion means 16 (squeezing groove).

As shown in FIG. 3, the absorbent article 1, the width direction diffusing means 16 intersects the deodorant arrangement area T _C. Then, both end portions in the width direction D _W in the width direction diffusing means 16 is positioned outside in the width direction D _W deodorant arrangement area T _C. Such a width direction diffusing means 16 has the following functions.

Figure 5 is a schematic diagram for explaining the function of the absorbent deodorant of the article 1 arrangement area T _C and the width direction diffusing means 16. When the absorbent article 1 is used, the absorbent article 1 is sandwiched between the bases of both feet and compressed from the outer side to the inner side in the width direction DW, and thus has a ridge shape convex to the skin facing surface side extending in the longitudinal direction DL. Form. Therefore, when the amount of exudates absorbent article 1 is absorbed is small, has been excrement 20 discharged from the excretion portion X is mainly diffused in the longitudinal direction D _L, and penetrate in the thickness direction D _T Then, it is absorbed by the absorbent sheet S _A1 and the deodorant-containing layer S _A2 . At this time, the longitudinal direction D _L along with deodorant deodorant disposed on deodorant arrangement area T _C-containing layer S _A2 that moving waste 20 is relatively large, the excrement 20 Odor is absorbed by the deodorant. Furthermore, if the absorbent polymer 6 of the absorbent sheet S _A1 contains a deodorizing component, the odor of the excreta 20 is also absorbed by the deodorizing component. Therefore, when the amount of excrement absorbed by the absorbent article 1 is small, the odor of the excrement does not diffuse to the outside.

However, when the amount of excrement absorbed by the absorbent article 1 increases, the excrement 20 is hardly absorbed by the absorbent sheet S _A1 and the deodorant-containing layer S _A2 near the excretion opening X. Therefore excrement 20 further diffuses longitudinally D _L, will reach a width direction diffusing means 16. Among the excreta 20, some excreta 20 a diffuses in the width direction diffusing means 16 toward both ends of the width direction _DW , and the remaining excrement 20 b directly exceeds the width direction diffusing means 16. It diffuses longitudinally _{D L.} At this time, the excrement 22 diffused in the longitudinal direction D _L exceeds the width direction diffusing means 16, move deodorant disposed longitudinally D deodorant arranged along the _L region T _C to waste 22 As a result, the odor of the excrement 22 is absorbed by the deodorant and does not leak to the outside. On the other hand, the excrement 20a to diffuse toward the width direction diffusing means 16 to both end portions in the width direction D _W, a large amount of concentrated excrement 20a is at both ends in the width direction D _W in the width direction diffusing means 16 reservoir, and, because of relatively small amounts of both end portions remote from deodorant arrangement area T _C deodorant in the width direction D _W in the width direction diffusing means 16, the odor of excreta 20a is deodorants Can not be absorbed by the water and leaks to the outside. Therefore, when the amount of excrement absorbed by the absorbent article 1 is large, the odor of excrement diffuses from the both ends of the width direction diffusing means 16 and the vicinity thereof.

  Thus, the absorbent article 1 does not diffuse the odor of the excrement to the outside when the amount of excrement absorbed by the absorbent article 1 is small, that is, when it is not time to replace the absorbent article 1, When the amount of excrement absorbed by the absorbent article 1 is large, that is, when it is time to replace the absorbent article 1, the odor of the excrement can be diffused to the outside. Therefore, it is possible to obtain the absorbent article 1 having the deodorizing function and capable of grasping the replacement time.

Moreover, excreta 20 has been reached in the width direction diffusing means 16, and excrement 20b for diffusing longitudinally D _L exceeds the width direction diffusing means 16, and excrement 20a diffusing into both end portions in the width direction diffusing means 16 Divided into Therefore, since the amount of the excrement 20a that becomes the source of the leaking odor is reduced, the amount of the generated odor is also reduced. In other words, although the absorbent article 1 can be noticed by the wearer, it can emit a weak odor that cannot be noticed by surrounding people. Therefore, it is possible to obtain the absorbent article 1 that is provided with a deodorizing function and that only the wearer can grasp the replacement time.

In the present embodiment, the absorbent article 1 has the deodorant in the deodorant-containing layer partially bonded to the carrier sheet 5 ′ with an adhesive, and the deodorant is disposed in plan view. both edges _{E LC} in the lengthwise direction _{D L} of the region _{T C,} E 'both edges _{E WC} in _{the LC} and the width direction _{D W,} E' _WC is, both edges in the longitudinal direction _{D L} of each adhesive coated area _{T H} E _It has a structure located inside in the longitudinal direction D _L and the width direction D _W from both end edges E _WH and E ′ _{WH in the LH} , E ′ _LH 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 ′. Further, in a portion where the deodorant is not held on the carrier sheet 5 ′ by the adhesive, the deodorant in the deodorant-containing absorbent layer 4 can move to a certain extent in the surface direction of the carrier sheet 5 ′. although, 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. Accordingly, the absorbent article 1 of the present embodiment can keep the deodorant deodorant in containing layer S _A2 in adhesives coated region T _H defined by adhesive, deodorant Can be effectively prevented from becoming unevenly distributed.

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.

Moreover, in this embodiment, the absorbent article 1 is provided with the longitudinal direction diffusion means 14, as shown in FIG. Longitudinal diffusion means 14, with respect deodorant arrangement area T _C, preferably located outside the width direction D _L against excretory opening contact region T _S, in the longitudinal direction D _L, preferably the width direction It extends outside the diffusing means 16. Longitudinal diffusion unit 14 serves to prevent diffusion of excrement in the width direction D _L, to diffuse the excrement in the longitudinal direction D _L. Longitudinal diffusion unit 14, thereby diffusing the excrement that diffuse topsheet 2 and absorbent layer (absorbent sheet S _A1 and deodorants containing layer S _A2) Medium in the width direction D _W in the longitudinal direction D _L There is no particular limitation as long as it has a possible structure. In the present embodiment, the longitudinal diffusing means 14 are compression grooves, on both the outside in the width direction D deodorant arrangement area in _W T _C and excretory opening contact region T _S, and, in the width direction diffusing means 16 It extends outside. Moreover, in this embodiment, the longitudinal direction diffusion means 14 (squeezing groove) is a groove that reaches the inside of the deodorant-containing layer _SA2 , for example, the carrier sheet 5 from the surface of the surface sheet 2 in the thickness direction _DT , Formed by embossing. Setting the depth of the groove to reach the carrier sheet 5 is preferable in that the absorbent material is not leaked from the deodorant-containing absorbent layer 4 while enhancing the function of the longitudinal diffusion means 14. Moreover, in this embodiment, the high density part 15 whose fiber density is higher than the periphery is formed in the lower part (non-skin opposing surface side part) of the bottom part of a pressing groove by compression. In addition, the groove | channel which reaches the inside of absorbent sheet _SA1 from the surface of the surface sheet 2 to the thickness direction _DT may be sufficient as the longitudinal direction spreading | diffusion means 14 (squeezing groove).

FIG. 6 is a schematic diagram for explaining the functions of the longitudinal direction diffusion means 14 and the width direction diffusion means 16 of the absorbent article 1. When the amount of excretion absorbed by the absorbent article 1 increases when the absorbent article 1 is used, the width direction D _{W of the} deodorant arrangement region T _C (and / or the excretion opening contact region T _S ). The excrement 23 is diffused also on both outer sides of the gas, and enters the longitudinal diffusion means 14 to become excrement 24. In this case, the excrement 24 is diffused in the longitudinal direction D _L, by discharging the excrement 25 from the end portion in the longitudinal direction diffusing means 14, the amount of excrement 25 in the vicinity of the end portion of the longitudinal diffusion means 14 Can do a lot. That is, when the exchanging time is approaching while preventing leakage of excrement in the width direction, the amount of excrement is increased at the end of the longitudinal diffusion means 14 or in the vicinity thereof, and odor is easily generated. it can.

In particular, the absorbent article 1 of the present embodiment, the longitudinal diffusing means 14 is outside the width direction diffusing means 16 in the width direction D _W, so as to extend outward in the width direction diffusing means 16 in the longitudinal direction D _L Yes. Thereby, it is possible to diffuse the excrement 25 outward in the longitudinal direction D _L exceeds the width direction diffusing means 16. That is, the excrement 25 can be diffused in a place away from the end of the width direction diffusing means 16. Since the influence of the excrement 22a from the end portion of the width direction diffusing means 16 is small at a place away from the end portion of the width direction diffusing means 16, that is, the amount of excrement supplied is small, the absorbent sheet S _A1 or The deodorizing effect by deodorant content layer _SA2 can be anticipated to some extent. Therefore, when the replacement time approaches, excretion does not concentrate, that is, the odor can be easily generated while preventing the odor from becoming extremely strong.

Moreover, as shown in FIG. 1, 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. 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 the substantially rectangular packaging sheet 30 by the plurality of fixing portions 33 and is packaged by the packaging sheet 30. However, the packaging sheet 30 has a release sheet (not shown) at each portion in contact with the plurality of fixing portions 33, and the absorbent article 1 is fixed to the packaging sheet 30 so as to be peelable. Thereby, the absorbent article 1 is peeled from the packaging sheet 30 at the time of use, and is re-fixed to the wearer's clothes by the plurality of fixing portions 33. In this embodiment, the absorbent article 1, on the opposite side of the surface and the deodorizing agent-containing layer S _A2 of the outer sheet 8b, extend longitudinally D _L, the center point in the width direction D _W (or center axis C _L ) is provided 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. (corresponding to a portion on the central axis C _L in the width direction D _W) is that rise on the skin facing side, which 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. This ridge, excrement excreted from the excretion portion can be moved more surely to the longitudinal direction D _L.

As shown in FIG. 1, when the absorbent article 1 and the packaging sheet 30 are individually packaged, the absorbent article 1 is fixed to the packaging sheet 30 and extends in parallel with the width direction _DW. Is folded with the absorbent article 1 facing inward. Multiple polyline FLV are arranged at predetermined intervals in the longitudinal direction D _L. In the present embodiment, the plurality of fold lines FLV are two fold lines FLV1 and FLV2 in order from the front side of the absorbent article 1, and are folded in order of the position of the fold line FLV1 and the position of the fold line FLV2, and fixed by the tape 32. .

At this time, as shown in FIG. 1, the absorbent article 1 of the present embodiment, between the excretory opening contact region T _S and excretory opening contact region T _S and the width direction diffusing means 16, pieces by polygonal line FLV No folds for packaging. Therefore, when the excrement is diffused in the longitudinal direction D _L from excretory opening contact region T _S, will not be disturbed by folds from reaching the width direction diffusing means 16. Therefore, excrement can be more reliably supplied to the width direction diffusing means 16. As a result, when the amount of excreta absorbed by the absorbent article 1 increases, that is, when the replacement time is approaching, the excrement is reliably supplied to the widthwise diffusing means 16 to reliably generate odor. Can be made.

Moreover, as shown in FIG. 1, the absorbent article 1 of this embodiment has the crease | fold for individual packaging by the broken line FLV in the position of the width direction spreading | diffusion means 16 along the width direction _DW . Thereby, it is possible by suppressing the movement of the excrement to be moved in the longitudinal direction D _L, to reliably spread in the width direction of the excrement in the lateral direction diffusing means 16 by the width direction diffusing means 16 and the fold. That is, the movement of the excrement in the width direction _DW of the width direction diffusing means 16 can be promoted, and the excrement can be reliably moved near both ends. Thereby, when the replacement time approaches, it is possible to reliably generate odor.

Moreover, as shown in FIG.1 and FIG.2, since the absorbent article 1 of this embodiment is equipped with a pair of side gather sheet | seats 8 and 8 ', the quantity of the excretion which the absorbent article 1 is absorbing. is increased, when the excrement to the outside in the width direction D _W against excretion opening contact region T _S is diffused, reaching the pair of side gathers sheet 8, 8 ', the excrement in the longitudinal direction D _L Can be diffused. That is, the excrement can be delivered toward the end of the width direction diffusing means 16. Thereby, when the replacement time approaches, the amount of excrement in the vicinity of the end of the width direction diffusing means can be increased, and odor can be easily generated.

Further, the topsheet 2 of the present embodiment preferably has a ridge-furrow structure (uneven structure) extending along the longitudinal direction D _L. That is, the surface sheet 2 is extended in the longitudinal direction D _L, a plurality of ridges adjacent to each other at a given distance in the width direction D _W and (convex portion), between the ridge portion adjacent one of the plurality of ridges in is preferably provided with a plurality of grooves extending in the longitudinal direction D _L and (recess), and. Thereby, since the surface sheet 2 has a ridge-furrow structure extended in the longitudinal direction D _L, excrement and can be easily moved longitudinally along the ridges groove. As a result, when the amount of excrement absorbed by the absorbent article 1 increases, that is, when the replacement time approaches, the excrement is reliably guided to the width direction diffusing means 16 and the width direction diffusing means 16 It is possible to reliably generate odor by sending it from both ends of the width direction _DW .

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 contain a liquid-retaining substance composed of water-absorbing fibers such as pulp in addition to the absorbent polymer 6. it can. When the absorbent material includes the absorbent polymer 6 and the water absorbent fiber, the content of the absorbent polymer 6 is in the range of 10 to 90% of the mass of the water absorbent fiber per unit area of the absorbent layer. Is within. In the present embodiment, as will be described later, the second absorbent layer S _A2 located on the non-skin facing surface side of the first absorbent layer S _A1 contains cyclodextrin as a deodorant. Therefore, from the viewpoint of efficiently contacting the cyclodextrin with excrement such as urine discharged from the wearer, the absorbent material preferably does not contain a liquid-holding substance such as pulp.

  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. From the viewpoint of liquid permeability, the liquid-permeable sheet is preferably an air-through nonwoven fabric.

In the absorbent article 1 (light incontinence pad) 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.

Incidentally, when folding the absorbent polymer blank region 12 across edge in the width direction D _W of the two liquid-permeable sheet 7, 7 'on the inner side in the width direction D _W is skin-facing side or 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 . By compressing the central portion so that it rises to the skin side (upper side), the compressive force is released. 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). Thereby, the excrement excreted from the excretion portion, the central portion of the raised absorbent sheet S _A1, i.e. can be more easily diffused in the longitudinal direction D _L along the deodorant arrangement area T _C.

Further, as shown in FIGS. 2 and 3, the absorbent article 1 of this embodiment is the same as the folds of the both end edge in the width direction D _W of the absorbent sheet S _A1, 2 sheets of liquid-permeable sheet 7, 7 'longitudinal D _L extending in the area between (perfume coating region T _F, T' _F) to one each or any of the liquid perfume is applied. By applying the liquid fragrance at such a position, even if the odor is diffused, it can be masked, and the wearer can notice the odor, but the surrounding people cannot notice it.

In this embodiment, the position at which the absorbent sheet S _A1 is disposed in the absorbent article 1 is not particularly limited as long as it is between the top sheet 2 and the deodorant-containing layer S _A2, and further, the deodorant-containing layer. the position of the non-skin facing side of the S _A2 may be disposed another absorbent sheet. Further, if the liquid absorption performance, liquid retention performance, and excrement diffusion performance of the deodorant-containing layer S _A2 are desired performance, the absorbent sheet S _A1 may be omitted.

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. When a plurality of liquid permeable sheets are used as the carrier sheet, the liquid permeable sheets may be the same type of liquid permeable sheets or different types of liquid permeable sheets. 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 invention, the bonding form of the deodorant and the carrier sheet deodorant-containing layer S _A2 (liquid-permeable sheet) is not limited to the above embodiment, for example, the deodorant The deodorant may be bonded to a liquid-permeable sheet disposed on the skin-facing surface side of the deodorant, and the deodorizer is on the skin-facing surface side and the non-skin-facing surface side of the deodorant. You may respectively join with the liquid-permeable sheet | seat arrange | positioned at both.

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. In the absorbent article of the present invention, “cyclodextrin” includes cyclodextrin retaining various active ingredients in addition to non-inclusion cyclodextrin.

  The form of cyclodextrin used in the absorbent article of the present invention is not particularly limited, and various forms can be used. Dispersibility, ease of handling during production, urine discharged from the wearer, etc. From the standpoint of improving the contact efficiency with the excreta, it is preferably used as a cyclodextrin powder whose particle size is adjusted with a binder such as maltocyclodextrin, pullulan or gum arabic.

Such a deodorant-containing layer _SA2 is a hot-melt type absorbent material layer 4 containing the above-described cyclodextrin as a deodorant and a mixture of an absorbent polymer and a liquid-retaining substance. It can be obtained by bonding to two carrier sheets 5, 5 ′ using an adhesive. 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 a deodorant arrangement step of arranging on the surface of at least the adhesive of Engineering adhesives coated region T _H, the mixture of the absorbent polymer and the liquid retaining material (e.g., pulp, etc.), the carrier sheet 5 ' at least by placing the adhesive and cyclodextrin on the surface, a deodorant-containing absorbent layer forming step of forming a 4 deodorant-containing absorbent layer of the adhesive coated area T _H in, deodorants The skin facing surface side of the contained absorbent layer 4 The above-described deodorant-containing layer S _A2 can be obtained by the carrier sheet disposing step of disposing the carrier sheet 5 with or without an adhesive on the surface.

In the absorbent article of the present invention, the coating amount of cyclodextrin is not particularly limited and can be appropriately set according to the desired deodorizing performance, absorbent performance, etc. For example, per absorbent article It can be 20 mg to 100 mg. Further, the cyclodextrin absorbs excrement of the absorbent article in a plan view as shown in FIG. 3 from the viewpoint of increasing the contact opportunity between excrement such as urine discharged from the wearer and cyclodextrin. it is preferably arranged a region T _a to the containing region.

Next, another embodiment will be described. In the present embodiment, differences from the above embodiment will be mainly described. FIG. 7 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 above-described embodiment 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.

In the absorbent article 1 of the present embodiment, the absorbent sheet _SA1 can be produced in the same manner as the absorbent sheet in the absorbent article 1 of the above embodiment. Then, in the present embodiment, the non-skin facing side of the absorbent sheet S _A1 the surface (i.e., the absorption of the non-skin facing side that constitutes the sheet S _A1 liquid-permeable holding surface of the sheet 7 ') above a was coated along a direction corresponding to a hot-melt adhesive in the longitudinal direction D _L of the absorbent article 1, at least the adhesive of the adhesive the adhesive is applied the coating region T _H The deodorant layer 4 ′ is formed by disposing a deodorant on the surface of the deodorant. Further, the deodorant coating sheet 10 made of a liquid permeable sheet is coated on the deodorant layer 4 ′. Thereby, it joined to the absorbent sheet S _A1 was, it is possible to obtain the deodorant containing layer S _A2 containing the deodorant-containing absorbent layer 4 and deodorant cover sheet 10.

  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 14 longitudinally diffusing means 16 widthwise spreading means T _S excretory opening contact region T _C deodorant arrangement area T _H adhesive coated areas

JP 2001-353174 A

Claims (10)

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 is positioned on the outer side in the longitudinal direction with respect to the excretory opening contact area of the absorbent article, extends in the width direction, and spreads the excrement in the width direction. A deodorant arrangement region extending in the longitudinal direction and positioned in the central region in the width direction,
The width direction diffusing means intersects the deodorant arrangement region,
Both ends in the width direction of the width direction diffusing means are located outside the width direction of the deodorant arrangement region,
Absorbent article. Longitudinal diffusing means disposed on both outer sides in the width direction with respect to the deodorant arrangement region, extending in the longitudinal direction, and diffusing excrement in the longitudinal direction.
The absorbent article according to claim 1. The longitudinal diffusion means is extended outward in the width direction with respect to the excretory opening contact area.
The absorbent article according to claim 2. The longitudinal direction diffusing means extends outside the width direction diffusing means in the width direction and outside the width direction diffusing means in the longitudinal direction.
The absorbent article according to claim 2 or 3. The liquid permeable layer extends in the longitudinal direction, and between the plurality of flanges adjacent to each other at a predetermined interval in the width direction, and the longitudinal direction between the adjacent flanges of the plurality of flanges. A plurality of grooves extending to
The absorbent article as described in any one of Claims 1 thru | or 4. There is no fold for individual packaging between the excretory opening contact area and the excretion opening contact area and the width direction diffusion means,
The absorbent article as described in any one of Claims 1 thru | or 5. At the position of the width direction diffusing means, it has a fold for individual packaging along the width direction,
The absorbent article as described in any one of Claims 1 thru | or 6. Further provided on both outer sides in the width direction with respect to the excretory opening contact area, further comprising a leak-proof wall extending along the longitudinal direction and fixed to the liquid-permeable layer,
The leak-proof wall extends in the longitudinal direction to the vicinity of the end of the absorption layer rather than the width direction diffusing means, and is positioned outside the width direction diffusing means in the width direction.
The absorbent article as described in any one of Claims 1 thru | or 7. The width direction diffusing means is a groove extending in the width direction and reaching the absorption layer from the surface of the liquid permeable layer in the thickness direction.
The absorbent article as described in any one of Claims 1 thru | or 8. Further provided on the surface of the liquid-impermeable layer opposite to the absorbing layer is a pair of fixing portions that extend in the longitudinal direction and are arranged at a predetermined interval across the center point in the width direction.
The absorbent article according to claim 9.

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