TW201628579A - Absorbent article - Google Patents

Abstract

The present invention provides an absorbent article that can sufficiently and efficiently exhibit the deodorizing function of cyclodextrin and the active ingredient controlled-release function of cyclodextrin complexes. This absorbent article (1) includes a liquid-permeable layer (2), a liquid-impermeable layer (3), an absorption layer that is positioned between the abovementioned layers, and a cyclodextrin-containing layer that is positioned between the absorption layer and the liquid-impermeable layer (3).

Description

Absorbent article

The present invention relates to an absorbent article having an odor suppressing function.

An absorbent article such as a light incontinence pad, a sanitary napkin, or a disposable disposable diaper is used to absorb and retain bodily fluids such as urine and menstrual blood discharged from the wearer. The body fluid absorbed by the absorbent body of the absorbent article usually studies an absorbent article capable of suppressing the odor caused by such body fluid because an unpleasant odor is generated.

In such an absorbent article, Patent Document 1 discloses that a cyclodextrin complex containing at least three components including a cyclodextrin and a cyclodextrin is disposed closer to the body than the absorbent core. An absorbent article among the layers of the surface.

[Advanced technical literature] [Patent Literature]

[Patent Document 1] Japanese Patent Publication No. 2013-545587

However, since the body fluid such as urine discharged from the wearer immediately passes through a layer (for example, a surface sheet or the like) close to the surface of the body of the absorbent article, the absorbent article disclosed in Patent Document 1 is a cyclodextrin. When the cyclodextrin complex is disposed on the surface of the surface of the absorbent article which is close to the surface of the body, the contact time between the cyclodextrin and the cyclodextrin complex and the body fluid cannot be sufficiently obtained, and the battery may not be fully utilized. The cyclodextrin has a deodorizing function and a sustained release function of the active ingredient of the cyclodextrin complex.

In view of the above, it is an object of the present invention to provide an absorbent article which can sufficiently exhibit the sustained release function of the active ingredient of the cyclodextrin and the cyclodextrin complex.

The absorbent article of the present invention comprises: a liquid permeation layer; a liquid impermeable layer; an absorption layer positioned between the two layers; and a cyclodextrin contained between the absorption layer and the liquid impermeable layer Floor.

According to the absorbent article of the present invention, the cyclodextrin contains a layer between the absorbent layer and the liquid impermeable layer, and the body fluid such as urine discharged from the user is absorbed in the absorbent layer through the liquid permeation layer. The body fluid is accumulated by the action of gravity on the lower side portion of the absorbent layer (that is, the portion on the side of the cyclodextrin-containing layer), and the accumulated body fluid is allowed to be accumulated. At least one of the cyclodextrin and the cyclodextrin complex contained in the cyclodextrin-containing layer is contacted for a long time with a large contact area. As a result, the deodorizing function of the cyclodextrin and the sustained release function of the active ingredient (the fragrance to be retained by the cyclodextrin, the deodorant component, and the like) which the cyclodextrin complex has can be sufficiently exhibited. In the absorbent article of the present invention, the "cyclodextrin-containing layer" means a layer containing at least one of a cyclodextrin powder and a cyclodextrin complex described later.

According to the present invention, it is possible to provide an absorbent article which is excellent in performance and has a function of cyclodextrin.

1‧‧‧Light incontinence pads (absorbent articles)

2‧‧‧Surface sheet (liquid permeation layer)

3‧‧‧Inside sheet (liquid impervious layer)

4‧‧‧Cyclodextrin contains an absorbent layer

4'‧‧‧cyclodextrin layer

5‧‧‧ slides

5’‧‧‧ slides

6‧‧‧Absorbing polymer (absorbent material)

7‧‧‧Skin-facing side liquid permeable sheet

7'‧‧‧Non-skin opposing side liquid permeable sheet

8, 8'‧‧‧ side hem sheets

9, 9'‧‧‧ filamentary elastic members

10‧‧‧cyclodextrin coated sheets

11‧‧‧Absorbing polymer configuration area

12‧‧‧Absorbing polymer non-arranged area

13‧‧‧Absorbing polymer non-existing area

14‧‧‧Press trench

15‧‧‧High Density Department

G‧‧‧Binder

T _A ‧‧‧ body fluid absorption area

T _C ‧‧‧cyclodextrin configuration area

T _H ‧‧‧Binder coating area

T _F , T' _F ‧‧‧Spices configuration area

Fig. 1 is a plan view showing a light incontinence pad according to a first embodiment or a second embodiment of the present invention viewed from a surface sheet side in a thickness direction in an unfolded state.

Fig. 2 is an end elevational view, taken along line II-II' of Fig. 1, of the light incontinence pad of the first embodiment of the present invention.

Fig. 3 is a plan view for explaining a body fluid absorption region, a cyclodextrin arrangement region, an adhesive application region, and a fragrance application region in the light incontinence pad of Fig. 1;

Fig. 4 is an end elevational view, taken along line II-II' of Fig. 1, of the light incontinence pad according to the second embodiment of the present invention.

[Formation for carrying out the invention]

Hereinafter, a suitable embodiment of the absorbent article of the present invention will be described in detail with reference to the drawings.

1 is a first embodiment or a second embodiment of the present invention viewed from the surface sheet (liquid permeation layer) side (that is, the skin facing surface side of the wearer) in the expanded state in the thickness direction D _{T .} FIG. 2 is an end view of a section II-II' of the light incontinence pad 1 of FIG. 1 in the light incontinence pad of the first embodiment of the present invention; FIG. 2 is a plan view of the light incontinence pad 1 of the first embodiment of the present invention; Fig. 3 is a plan view for explaining a body fluid absorption region, a cyclodextrin arrangement region, an adhesive application region, and a fragrance application region in the light incontinence pad of Fig. 1; In addition, in the present specification, the "expanded state is viewed from the liquid permeable layer side" as a "top view".

As shown in FIG. 1 and FIG. 3, the incontinence pad 1 according to the first embodiment of the present invention has a rectangular shape extending in the longitudinal direction D _{L and} a short side extending in the wide direction D _W in plan view. The ends of the long direction have an arc-shaped shape. Further, in the present invention, the shape of the absorbent article is not limited to such a shape, and any lengthwise shape may be formed as long as the length dimension of the longitudinal direction D _L is longer than the wide dimension of the wide direction D _W . Shape (for example, rectangle, oval, gourd, etc.).

In the present specification, it may be a direction towards the length _L extends in the longitudinal direction D of the center axis _L of the absorbent article referred to as C direction inner side in the width direction, from the central axis C may be remote from the _L The direction is referred to as the direction of the outer side in the wide direction. Similarly, a direction extending toward the central axis C _W of the wide direction D _W of the absorbent article may be referred to as a direction on the inner side in the long direction, and a direction away from the central axis C _W may be referred to as a long direction. The direction of the outer side of the medium. In the thickness direction D _{T of the} absorbent article, the direction facing the side of the wearer's skin (the side opposite to the skin) can be referred to as the direction of the skin facing surface side, and the orientation and the orientation can be The direction of the opposite side of the wearer's skin facing the side (non-skin opposing side) is called the direction opposite to the skin-facing side.

The absorbent article of the present invention, is shown in Figure 3, in a plan view: a liquid absorbing region T _A, which is D in the width direction _{W is} extending across the absorbent article in the longitudinal direction D _L of the extension of the center axis C _L And extending in the longitudinal direction D _L across a central axis C _W extending in the width direction D _W of the absorbent article; and a region outside the body fluid absorption region. Here, the "body fluid absorption region" refers to a region corresponding to the body fluid discharge position of the wearer when the user wears the absorbent article, and specifically, the type of the absorbent article is discharged in accordance with the wearer. The type of body fluid such as urine, stool, and menstrual blood; the age and sex of the wearer; the position and area where the excretory opening of the wearer abuts; the structure of the absorbent layer, and the like, which are appropriately set according to the type of the absorbent article. Further, the liquid absorbing region T _A usually has a length in the longitudinal direction of about 1/3 or more of the entire length D _L of the absorbent article and about 1/3 or more of the entire length of the absorbent article in the width direction D _W . The length of the width direction. In addition, the "region other than the body fluid absorption region" means a region other than the body fluid absorption region extending from the body fluid absorption region toward the outer side in the longitudinal direction and the wide direction, and the region includes: The area that can absorb the body fluid discharged from the installer and the area that is not the body fluid discharge position of the installer can absorb the body fluid discharged from the installer.

As shown in Fig. 2, the incontinence pad 1 according to the first embodiment of the present invention includes a surface sheet 2 as a liquid permeation layer, which is located on the opposite side of the skin of the wearer in the thickness direction D _T It is formed of any liquid permeable sheet such as a liquid permeable non-woven fabric or a plastic film; and the inner sheet 3 as a liquid permeable layer is placed on the non-skin facing surface side of the wearer, and is liquid-impermeable. any non-woven fabric, plastic film or the like without forming a liquid permeable sheet; S _a sheet as an absorbent absorbing layer, which is located between the inside surface of the sheet 2 and the sheet 3, and with two liquid permeable sheet 7 , 7 '(e.g., an air-woven fabric) comprising absorbent material sandwiched absorbent polymer at least 6; cyclodextrin-containing layer, which is located between the absorbent sheet and the inside sheet S _a 3, and extracted with 2 The carrier sheet 5, 5' formed of a liquid permeable sheet (for example, a thin paper or the like) sandwiches a cyclodextrin containing an absorbent layer containing a mixture of a cyclodextrin and an absorbent polymer and a liquid retaining substance (for example, pulp or the like). 4; a pair of side hem sheets 8 extending in the longitudinal direction, 8', which is formed by folding the laminate from the front sheet to the inner sheet from the outer side in the wide direction, and joining the laminate to the laminate in the width direction. The side edge of the side forms a hem portion as a free end; and the linear elastic members 9, 9' are located near the creases of the pair of side hem sheets 8, 8', and each of the two is disposed at The respective members of the pair of side hem sheets are composed of various members.

In the present embodiment, those functions, the absorbent sheet S _A (absorption layer), having a long absorption of urine discharged from the body fluids repackage and the like to be held is not particularly limited, but is desirable to use a two The liquid permeable sheet such as hot air non-woven fabric is used to sandwich an absorbent material containing at least the above-described absorbent polymer 6. Here, the "absorbent polymer" is a polymer that can absorb and retain water, and examples thereof include a polymer having a three-dimensional network structure in which a water-soluble polymer is moderately crosslinked. Specific examples thereof include starch-based, acrylic-based, and amino acid-based particulate or fibrous polymers. Such an absorbent polymer can also exhibit a deodorizing effect because it absorbs not only water but also an odor formed by an ammonia component or the like.

In addition, as the absorbent polymer, a deodorant component in which the absorbent polymer particles and any deodorant component are integrated may be suitably used, and an absorbent polymer or the like may be used. In addition, the deodorizing component is a component which can remove the odor which causes the odor component by adsorbing an odor component such as ammonia or dimethylamine. Examples of such a deodorizing component include activated carbon; alumina; zeolite; cyclodextrin; and a zeolite substituted with a bactericidal metal cation such as silver or copper, and adhered to the surface of activated carbon or alumina. A sterilizing deodorizing component such as a complex of a fourth-order ammonium salt compound having a bactericidal action; or a combination of two or more of these deodorizing components.

In addition, when the urea contained in the urine is decomposed by the enzyme called urease which is contained in the bacteria in the urine, an ammonia component is generated to generate an ammonia odor, but the above-mentioned bactericidal deodorant component is used as a bacterium in the urine. Since the fungicide acts, it is an advantageous deodorizing component at the point of suppressing the decomposition of urea by the urease described above and preventing the generation of ammonia odor. Moreover, the effect of preventing the generation of such an ammonia odor is also obtained by using a sterilizing agent having the same bactericidal action as the sterilizing deodorizing component, and therefore, for example, by spraying the absorbent polymer particles An aqueous solution of such a bactericide can obtain an absorbing agent in which an absorbing agent is integrated with a sterilizing agent. The absorbing agent containing an absorbing agent can also be suitably used in the present invention.

The deodorant component contains an absorbent polymer and is obtained by mixing and dispersing the absorbent polymer particles and the above-described deodorant component. Further, the deodorant component contains an absorbent polymer, and after the absorbent polymer particles are added with water to form an aqueous gel, the absorbent polymer in a state in which the aqueous gel is mixed and the deodorant component described above are caused. Integration is also available.

In the present invention, the absorbent material in the absorbent sheet S _A (absorption layer) may be used, as long as those containing the absorbent polymer is not particularly limited, except that the absorbent polymer may also comprise a A liquid-retaining substance formed of water-absorbent fibers such as pulp. When the absorbent material contains the absorbent polymer and the water absorbent fiber, the content of the absorbent polymer is the area per unit area of the absorbent layer, and the mass of the water absorbent fiber is in the range of 10 to 90%. Further, in the present invention, the body fluid such as urine discharged from the user is efficiently contacted with the cyclodextrin in the cyclodextrin-containing surface of the absorbent sheet on the non-skin opposing surface side of the absorbent sheet. In view of the above, the absorbent material is preferably a liquid retaining material containing no pulp or the like.

Further, in the liquid the absorbent sheet S _A (absorption layer) may be used as long as it is permeable sheet a liquid permeable sheet resistance is not particularly limited, for example, a jet of non-woven, spun-bonded, stacked nonwoven fabric (e.g., SBS non-woven A hydrophilic non-woven fabric such as tissue paper. From the viewpoint of liquid permeability, the liquid permeable sheet is preferably a gas flow non-woven fabric.

In light incontinence pad 1 according to the present embodiment, the absorbent sheet S _A, is accomplished by the above-described absorbent polymer 6 (absorbent material) and then coated arranged in two liquid-permeable sheet agent G 7, 7' between the two liquid-permeable sheets 7, 7' in the central direction in the wide direction D _W so that the area in which the absorbent polymer is disposed (absorbent polymer arrangement area) 11) After the absorbent polymer is sandwiched between the two liquid permeable sheets 7, 7' in the region adjacent to the both sides of the width direction D _W without the presence of the absorbent polymer, there is no configuration. The regions of the above-mentioned absorbent polymer (absorbent polymer non-arranged regions 12) on the both end sides of the liquid-impermeable sheets 7 and 7' in the wide-width direction D _W are respectively extended along the aforementioned length The folding line of the direction D _L can be folded in the inner side of the wide direction D _W (so-called wrapping). In addition, when the absorbent polymer non-arranged region 12 on the both end sides of the two sheets of the liquid permeable sheets 7 and 7' in the wide direction is folded toward the inner side in the wide direction, Fold in either direction on the opposite side of the skin or on the opposite side of the skin. The respective absorbent polymer non-arrangement regions of the two liquid permeable sheets sandwiching the absorbent polymer are folded in such a manner that the absorbent polymer is difficult to leak from the absorbent sheet, and the absorbent property can be made. The folded portion (folded portion) of the sheet has a four-layer laminated structure and the rigidity is improved. Therefore, even when the absorbent article is attached, the width of the absorbent article is increased by the movement of the wearer's foot or the like. The outer side of D _W is biased, and the aforementioned absorbent sheet is still difficult to deform. As a result, the absorption area of the body fluid such as urine discharged from the wearer can be ensured, and the good absorption performance as an absorbent article can be maintained.

Further, in the absorbent article of the present invention, the absorbent sheet (absorbent layer) is not limited to the above-described aspect, and for example, the absorbent material may be folded by folding one sheet of the liquid-permeable sheet. Or, in a manner of being surrounded by three or more liquid-permeable sheets, the region of the central region is adjacent to the central region of the wide direction and/or the long direction of the liquid-permeable sheet. That is, a region (absorbent material non-arrangement region) in which the absorbent material is not disposed, and a folding line extending in the longitudinal direction and/or the wide direction toward the width direction and/or the inner side in the longitudinal direction Side folding for production.

When the absorbent sheet produced in this way is placed on the lower side (non-skin-facing side) of the surface sheet as the liquid-permeable sheet, the body fluid such as urine discharged from the wearer passes through the surface sheet. The absorbent polymer in the absorbent sheet immediately absorbs the odor together with the body fluid such as urine. Further, at this time, when the absorbent polymer is swollen and the thickness of the absorbent sheet is increased, even when the body pressure due to the weight of the wearer or the like is applied to the absorbent article, the absorbent polymer after swelling is as The pressure buffer layer functions in a manner such that it is difficult for the body fluid absorbed by the absorbent polymer to reflow to the surface sheet (liquid permeation layer). In addition, since the body fluid passes through the absorbent sheet by the action of gravity, it is possible to sufficiently ensure that the cyclodextrin which is in contact with the non-skin opposing surface side of the absorbent sheet contains the cyclodextrin in the absorbent layer. Moreover, if the body fluid stays in the suction for a long time In the case where the body fluid is diffused in a wide range in the direction of the surface of the absorbent sheet, the body fluid can be brought into contact with the cyclodextrin from a wider range. As a result, the cyclodextrin contains a deodorizing function of the cyclodextrin in the absorbent layer and a sustained release function of the active component of the cyclodextrin complex, which is more efficient and more effective. Its play.

And, FIG. 2 and FIG. 3, a light incontinence pad 1 according to the present embodiment, the folded portions are at both ends in the edge side of the absorbent sheet S _A D _W is the width direction is, in extending Each of the areas (the fragrance application areas T _F and T' _F ) in the longitudinal direction D _L sandwiched between the two liquid permeable sheets 7 and 7 ′ is coated with a liquid fragrance. By applying a liquid fragrance at such a position, the liquid fragrance does not come into contact with a hot-melt type adhesive or the aforementioned absorbent polymer for fixing the absorbent sheet to the light incontinence pad 1 described above. Therefore, the adhesion of the aforementioned adhesive agent or the absorption property of the aforementioned absorbent polymer is not lowered, and the aromatic action by the liquid fragrance can be exerted. Further, by applying a liquid fragrance at a position away from the cyclodextrin in the cyclodextrin-containing layer, the liquid fragrance is hardly adsorbed by the uncased cyclodextrin, and the aroma of the liquid fragrance can be made. The role does play. Further, the liquid fragrance used in the absorbent article of the present invention is not particularly limited, and any liquid fragrance known in the art such as a natural flavor or a synthetic flavor can be used. However, if the absorbent article is considered to be suitable for the human body, It is ideal for using natural flavors from plants.

In the absorbent article of the present invention, the aforementioned absorbent property is disposed The position of the sheet (absorbent layer) is not particularly limited as long as it is located between the cyclodextrin-containing layers of the surface sheet. For example, other positions on the non-skin opposing surface side of the cyclodextrin-containing layer may be disposed. Absorbent sheet.

As shown, a light incontinence pad patterns 12 of the present embodiment, the absorbent polymer arranged in the region S _A is the absorbent sheet, the absorbent polymer located in the skin facing side of the liquid-permeable sheet 7 The adhesive G for fixing the absorbent polymer is intermittently applied to the liquid permeable sheet 7' positioned on the non-skin opposing surface side of the absorbent polymer 6, respectively. The application form of the adhesive G is not particularly limited as long as the adhesive G is applied intermittently, and for example, it may extend in the longitudinal direction of the liquid permeable sheets 7 and 7' and be arranged in the width direction. The linear form of the plurality of strips may extend in a linear form in which a plurality of the longitudinal directions of the liquid-permeable sheets 7 and 7' are arranged in the longitudinal direction, or may be in the form of a plurality of dots. Further, the adhesive G is not particularly limited, and for example, a hot melt type adhesive or the like can be used.

The absorbent polymer arranged in the region of the absorbent sheet S _A, G so adhesive is intermittently applied to the case, the discharged lighter incontinence pad 1 repackage the body fluid such as urine does not pass through the coating liquid part G of the adhesive sheet 7, an absorbent in the absorbent polymer is fixed to the inside of the absorbent sheet S 6 _a is absorbed, so it will not hinder the absorbent sheet S _a, can inhibit the absorptive sheet S _a The movement of the absorbent polymer 6 therein.

Further, as shown in Fig. 2, the adhesive G in the light incontinence pad 1 of the present embodiment is applied to the liquid permeable sheet 7 located on the skin facing surface side of the absorbent polymer 6. The position of the agent G and the position of the adhesive G applied to the liquid-permeable sheet 7' on the non-skin opposing surface side of the absorbent polymer 6 are applied so as not to overlap each other in the thickness direction D _T . Each sheet of the liquid permeable sheets 7, 7'. When the adhesive agent G is applied as described above, since a gap is hard to be formed between the liquid permeable sheet 7 and the liquid permeable sheet 7', it is possible to reduce the occurrence of odor generated by holding body fluid such as urine in the gap. Furthermore, there is no absorbent polymer in the absorbent sheet S _A 6 absorbed body fluids such as urine, because the agent portion may then G permeable sheet 7 'is not coated by the fluid out of the absorbent sheet S _a non-skin contact surface side, it can be described later together with the cyclodextrin in the odor absorbing layer containing the absorbent sheet S _a flowing fluid caused by the causes of the bodily fluid.

Light incontinence pad according to the present embodiment, an absorbent sheet S _A 1, for example the skin in the liquid permeable sheet 7 'of the surface of the opposite side (above), except a region to be described later is formed outside of the press grooves 14, The adhesive G is applied intermittently, and the absorbent polymer is placed in a region where the adhesive G is intermittently applied, and then the surface is coated on the non-skin opposing surface (underside) intermittently. The liquid permeable sheet 7 of the cloth adhesive G is joined, and finally obtained by folding the above-mentioned absorbent polymer non-arrangement region 12.

The absorbent sheet thus obtained S _A in a plan view, in a region where the liquid-permeable sheet 7 'of the grooves 14 of the press, since there is no adhesive coating fixing the absorbent polymer with G 6, so that the The absorbent sheet S _A is an absorptive polymer non-existing region 13 having a partially absorptive polymer 6 in the absorbent polymer disposing region 11 . Further, the range of the absorptive polymer non-existing region 13 may be appropriately set depending on the form of the press-groove groove 14 to be formed, but may be set to be a predetermined size (for example, 2 to 5 mm) from the peripheral edge of the press-groove groove. The extension of the foreign party is ideal.

Further, light incontinence pad 1 according to the present embodiment, the surface sheet having the facing surface of skin 2 to at least the interior of the absorbent sheet S _A press grooves 14, the press grooves 14 are formed in a plan view In the aforementioned absorbent polymer non-existing region 13. The pressurizing strip groove 14 can be formed into a surface sheet 2 (liquid permeation layer) by heat embossing from the skin facing surface side of the surface sheet 2 in the absorbent polymer non-existing region 13 in a plan view, and absorbable. The sheet S _A (absorbent layer), the cyclodextrin-containing layer, and the inner sheet (liquid impermeable layer) are superposed. Further, at the lower portion (non-skin opposing surface side portion) of the bottom portion of the presser groove 14, a high-density portion 15 having a fiber density higher than that of the periphery is formed by pressing.

Since the pressurizing strip groove is formed in a non-existing region of the absorbent polymer, it is possible to prevent breakage of the surface sheet due to the interposition of the absorbent polymer during pressing. Further, since the high-density portion having a higher fiber density than the periphery is formed in the lower portion of the bottom portion of the press groove, the body fluid such as urine flowing into the press groove can be made more porous by the high-density portion. rapidly down side (non-skin facing surface side), while the lower side may be a cyclodextrin (for non-skin facing side) of the absorbent sheet S _a (absorption layer) containing layer is performed more efficiently The absorption of the body fluid and the adsorption of the odor caused by the body fluid.

Further, the press groove groove may be formed from the skin facing surface of the surface sheet 2 to the inside of the cyclodextrin-containing layer to be described later; The carrier sheet 5' on the back sheet side of the cyclodextrin-containing layer was formed. When the pressurizing strip groove is formed in this way, the body fluid such as urine discharged from the installer can be quickly moved to the cyclodextrin-containing layer, and it is difficult to cause a gap or a twist between the layers constituting each layer of the absorbent article.

Further, in the surface sheet (liquid permeation layer), irregularities such as embossing may be imparted in addition to the above-described press strip groove. When such unevenness is imparted to the surface sheet, since the contact area between the wearer's skin and the discharged body fluid can be reduced, the skin such as rash is likely to occur.

In the light incontinence pad 1 of the present embodiment, the cyclodextrin-containing layer is formed by bonding at least a part of the cyclodextrin containing the cyclodextrin in the absorber layer 4 to a non-skin opposing surface of the cyclodextrin. The carrier sheet 5' (cyclodextrin-retaining sheet) on the side, and includes a hot-melt type adhesive which continuously or intermittently extends along the longitudinal direction D _{L of} the light incontinence pad 1 (absorbent article), and further, The cyclodextrin-containing layer has an adhesive application region T _H extending in the longitudinal direction D _L and the wide direction D _W of the light incontinence pad 1 and a region in which the cyclodextrin is disposed, in a plan view. And a cyclodextrin disposition region T _C extending in the longitudinal direction D _L and the wide direction D _W to form both end edges E _LC in the longitudinal direction D _L of the cyclodextrin disposition region T _C , Both ends E _WC and E' _{WC of the} E' _LC and the aforementioned wide direction D _W are respectively opposite end edges E _LH and E' _LH in the longitudinal direction D _L of the above-described adhesive application region T _H . E _WH both edges and the width direction of D _W, E _'WH is located more near the inner side in the longitudinal direction and the width direction D _L D _W.

Here, the term "adhesive application region" as used herein means a region in a plan view in which an adhesive is applied, specifically, in the longitudinal direction D _L and the width direction D of the absorbent article. The region extending in the _W region is defined by two longitudinal imaginary straight lines which are connected to each other along the longitudinal direction D _L on both sides of the longitudinal direction D _L and which are located on the outer side in the width direction D _W . then the region of the end of the agent; and 2, respectively, along the width direction by the width direction D _W D _W at both sides of the width direction and connected to each of the imaginary line around the longitudinal direction on the outer most D _L The area of the end of the adhesive on the square side. Further, in FIG. 3, the two long-direction imaginary straight lines and the two wide-width imaginary straight lines are only the portions (line segments) in which the adhesive application region T _H is partitioned, and the adhesive-coated regions T _H are respectively used. Both end edges E _WH and E' _{WH in the} wide direction D _W and the both end edges E _LH and E' _{LH in the} long direction D _L are indicated.

The adhesive application region T _{H is} viewed from the viewpoint of the contact efficiency between the body fluid discharged from the installer and the cyclodextrin, and is viewed in a plan view and spans the absorbent article in the width direction D _{W .} The central axis C _L extending in the longitudinal direction D _L extends in the wide direction D _W and the central axis C _W extending in the longitudinal direction D _W of the absorbent article in the longitudinal direction D _L Further, a region extending in the longitudinal direction D _L is preferably a region overlapping the body fluid absorption region T _{A of the} absorbent article, and a region including the body fluid absorption region T _A is more preferable.

In the present specification, the term "cyclodextrin-arrangement region" means a region in which a cyclodextrin is disposed on the surface of the cyclodextrin-retaining sheet in a plan view, and specifically, in the longitudinal direction D _L And a region extending in the wide direction D _W , that is, two long-distance imaginary straight lines connected in the longitudinal direction D _L on both sides of the longitudinal direction D _L are located in the width direction D _W a region of the end portion of the cyclodextrin on the outer side; and two imaginary straight lines extending in the width direction D _W on both sides of the wide direction D _W , surrounding the long direction D The area of the end of the cyclodextrin on the outermost side of _L. In addition, in FIG. 3, the two imaginary straight lines in the longitudinal direction and the two imaginary straight lines in the wide-width direction are only the portions (line segments) in which the cyclodextrin disposition region T _C is partitioned, respectively, as the cyclodextrin disposition region T _C Both end edges E _WC and E' _WC in the wide direction D _W and both end edges E _LC and E' _LC in the longitudinal direction D _L are indicated.

The cyclodextrin disposition region T _{C is a} cross-sectional view in the wide direction D _W as viewed from a viewpoint of improving the contact efficiency between the body fluid discharged from the installer and the cyclodextrin. The central axis C _L extending in the longitudinal direction D _L of the absorbent article extends in the wide direction D _W and extends in the longitudinal direction D _L across the central axis of the absorbent article in the width direction D _W The region where C _W extends in the longitudinal direction D _L is preferably a region overlapping the body fluid absorption region T _{A of the} absorbent article, and is preferably a region including the body fluid absorption region T _A . When the cyclodextrin arrangement region T _C is a region containing the body fluid absorption region T _A of the absorbent article, the body fluid such as urine discharged from the wearer easily comes into contact with the cyclodextrin, and the cyclodextrin can be more reliably exhibited. It has a deodorizing function and a slow release function of spices.

In the present embodiment, the light incontinence pad 1 is a cyclodextrin in a cyclodextrin-containing layer, and is partially bonded to a carrier sheet 5' (cyclodextrin-retaining sheet) formed by a thin paper or the like by the above-mentioned adhesive. And, in a plan view, both end edges E _LC , E′ _LC in the long direction D _L of the cyclodextrin arrangement region T _C and the both end edges E _WC , E in the aforementioned width direction D _{W 'WC,} respectively than that of the both edges and then E _LH T _H of the application region in the longitudinal direction, E' and E _{WH LH} both edges of the width in the direction D _W, E 'in the _long-WH Since the direction D _L and the wide direction D _W are located closer to the inner side, the cyclodextrin contains the absorber layer in the portion where the cyclodextrin is held in the carrier sheet 5' by the above-mentioned adhesive. The cyclodextrin in 4 is difficult to move toward the surface of the carrier sheet 5', and the cyclodextrin contains the absorber layer 4 in a portion where the cyclodextrin is not held by the carrier sheet 5'. The cyclodextrin inside can be moved to a certain extent in the direction of the surface of the carrier sheet 5', but by being disposed separately than the cyclodextrin _LC domain both edges E T _C D _L of the longitudinal direction of, E 'and both edges of the _LC in the width direction D _W E _WC, E' _WC is located closer to the outer side of the adhesive, it It is difficult to move to the outside side. Thus, a light incontinence pad 1 according to the present embodiment, the cyclodextrin can contain cyclodextrin-based layer is retained within the inner then followed by the application region T _H, and may be effective in the prevention of specified The offset of the cyclodextrin. As a result, the light incontinence pad 1 of the present embodiment can reliably contact the body fluid such as urine discharged from the wearer with the cyclodextrin, so that the deodorizing function of the cyclodextrin can be stinky. The slow release function of the active ingredient such as the adsorption function of the gas component and the fragrance can be stably and fully exerted.

Further, the light incontinence pad 1 of the present embodiment has the both end edges E _LC and E' _LC in the longitudinal direction D _L of the cyclodextrin disposition region T _C and the width direction D _W both edges E _WC, E _'WC, respectively, and then both edges than the E _LH T _H of the application region in the longitudinal direction, E' _LH D _W and the width direction of both edges E _WH, E' _{WH is a structure} in which the longitudinal direction D _L and the wide direction D _W are located on the inner side. However, the absorbent article of the present invention is not limited to such a structure, and includes the cyclodextrin disposition region. Any of the two end edges E _LC , E′ _LC in the long axis direction D _L of T _C or both end edges E _WC and E′ _{WC in} the above-described wide direction D _W is larger than the above-described adhesive application region T E _LH on both end edges of the longitudinal direction _H, 'E _{WH LH} or both edges of the width in the direction D _W, E' E _WH more in the longitudinal direction is located in the D _L or the width direction D _W The configuration on the square side is sufficient. Even the absorbent article having such a configuration, still within the cyclodextrin cyclodextrin-containing layer, followed by a certain extent retained by the application region followed by the T _H, can be sufficiently prevented under a cyclodextrin agent Fine offset.

As described above, in the incontinence pad 1 of the present embodiment, the cyclodextrin-containing layer has the carrier sheet 5, 5' formed by the two liquid-permeable sheets, and contains the cyclodextrin and the aforementioned absorption. The cyclodextrin of the mixture of the polymer and the liquid retaining substance contains the structure of the absorbent layer 4, but the absorbent article of the present invention is not limited to the above structure. For example, the cyclodextrin-containing layer may be a mixture of a cyclodextrin of any form such as a powder or the like, and a liquid permeate together with the above-mentioned absorbent polymer and/or the liquid retaining substance, if necessary, The sheet is folded and sandwiched, or is surrounded by three or more liquid permeable sheets, or one liquid permeable sheet (ring) as in the second embodiment to be described later. The dextrin-coated sheet is composed of a non-skin facing surface. Moreover, when a plurality of liquid-permeable sheets are used as a carrier sheet, the same type of liquid-permeable sheet may be used for each liquid-permeable sheet, or a different type of liquid-permeable sheet may be used.

In the present invention, the liquid-permeable sheet used for the carrier sheet may be any sheet-like fibrous structure such as a nonwoven fabric (including a tissue) or a woven fabric made of an aggregate of fine fibers such as pulp. The basis weight of the fiber structure is not particularly limited, but is, for example, from 1 to 50 g/m ² , preferably from 5 to 30 g/m ² , from the viewpoint of liquid permeability or prevention of outflow of cyclodextrin, and the like. Ideally 10~20g/m ² .

Further, the fiber structure can penetrate the body fluid discharged from the wearer and has a degree that the cyclodextrin does not flow out of the cyclodextrin-containing layer between the constituent fibers of the fiber structure (for example, The interfiber distance is preferably smaller than the particle diameter of the cyclodextrin powder described later. For example, the fiber structure having a fiber-to-fiber distance of 1 to 300 μm is 90% or more of the total fiber structure, and the fiber-to-fiber distance of 10 to 150 μm is preferably 90% or more of the total fiber. Construct.

Here, the fiber-to-fiber distance of the fiber structure is measured by a mercury porosimetry (JIS R 1655), and can be measured using a mercury porosimeter (manufactured by Shimadzu Corporation). In the mercury intrusion method, when mercury is pressed between the constituent fibers of the fiber structure as the object to be measured, the pressure applied to the mercury and the space between the constituent fibers extruded into the fiber structure are measured. Information about the structure of the aforementioned fiber structure can be obtained by the volume of mercury inside.

Specifically, the fiber-to-fiber distance of the fiber structure can be measured by using a mercury porosimeter in accordance with the following procedure.

1) The fiber structure of the object to be measured was cut into 24 mm × 15 mm to prepare a sample for measurement. Three samples were made for this measurement sample.

2) The sample for measurement is placed in a sample cell of a mercury porosimeter (manufactured by Shimadzu Corporation), and the pressure applied to the mercury is slowly changed while measuring The volume of mercury (i.e., the pore volume) in the space between the constituent fibers (i.e., the pores) of the fiber structure is extruded. Further, the measurement was carried out in an environment of 22 ° C and 65% RH.

3) Calculating the pore diameter D (μm) of the pores (that is, the interfiber distance (μm) of the fiber structure) according to the following formula (1), and the relationship between the pore diameter D and the pore volume is the pore diameter Obtained by the distribution curve of D (differential, integral curve). Further, various measurement conditions in the following formula (1) are such that the surface tension of mercury is 0.483 N/m, the contact angle is 130°, and the mercury pressure is 0 to 414 MPa (absolute pressure).

[Number 1] D=-4 γ cos θ /P. . . (1) (wherein D represents the pore diameter (inter-fiber distance), γ represents the surface tension of mercury, θ represents the contact angle, and P represents the pressure.)

4) Based on the obtained distribution curve of the pore diameter D, the ratio of the volume of the pores having the pore diameter D of 1 to 300 μm (or 10 to 150 μm) to the total volume of the pores having the pore diameter D of 0 to 500 μm was calculated.

5) The above operations 2) to 4) are performed 3 times, and the obtained volume is obtained. The average value of the ratio is regarded as the ratio (%) of the interfiber distance of 1 to 300 μm (or 10 to 150 μm).

Further, in the light incontinence pad 1 of the present embodiment, the cyclodextrin-containing layer is a cyclodextrin containing the cyclodextrin in the absorbent layer 4 and a non-skin opposing surface disposed on the cyclodextrin. The carrier sheet 5' formed by the thin tissue on the side is partially joined by the above-mentioned adhesive. However, in the absorbent article of the present invention, the bonding state of the cyclodextrin and the carrier sheet (liquid permeable sheet) is The cyclodextrin may be bonded to the liquid permeable sheet disposed on the side opposite to the skin of the cyclodextrin, or the cyclodextrin may be separately disposed. The liquid permeable sheet on both the skin facing surface side and the non-skin opposing surface side of the cyclodextrin is joined.

Here, the cyclodextrin is a cyclic oligosaccharide in which a glucopyranose unit is linked by α-1,4 bonding, and generally, a glucopyranose unit contained in one molecule of a cyclodextrin The number is 6 for α-cyclodextrin, 7 for β-cyclodextrin, and 8 for γ-cyclodextrin. The cyclodextrin may be composed of other molecules (for example, an active ingredient such as a fragrance or a deodorant component, an odor component of excrement, etc.) on the inside of the ring structure due to the presence of moisture or the like, and may be Other molecules in the cage are released as the environment changes. The cyclodextrin used in the absorbent article of the present invention is not particularly limited, and may be chemically modified (for example, in addition to α-, β-, γ-cyclodextrin, and/or a mixture of these. Alpha-, β-, γ-cyclodextrin and/or mixtures of these, and the like. Further, in the absorbent article of the present invention, "cyclodextrin" includes unfed. In addition to the cyclodextrin, a cyclodextrin or the like which retains various active ingredients such as perfumes is also included.

In the absorbent article of the present invention, it is preferred to use a cyclodextrin which is a cyclodextrin which is a mixture of a natural flavor or a synthetic flavor. The cyclodextrin which retains such a fragrance has a function of slowly releasing the fragrance retained by the cyclodextrin by contact with a body fluid such as urine discharged from the wearer, and thus The fragrance to be released can cover the odor of the body fluid, and the odor component such as the ammonia component contained in the body fluid can be adsorbed by the unfrozen cyclodextrin released after the fragrance. Therefore, when a cyclodextrin which retains such a flavor is used, it is possible to effectively suppress an odor generated by a body fluid such as urine discharged from an installer.

In addition, the fragrance to be held by the cyclodextrin is not particularly limited, and any of natural flavors such as natural flavors and synthetic flavors conventionally known can be used. However, if the absorbent article is applied to the human body, natural use from plants is used. Spices are ideal. Further, the fragrance held by the cyclodextrin is preferably the same component as the above-mentioned liquid fragrance. When the fragrance is the same component, even if the body fluid such as urine discharged from the wearer comes into contact with the cyclodextrin which retains the fragrance, the fragrance is released from the cyclodextrin, and the fragrance is not produced by each fragrance. The different fragrances are mixed with each other to cause a change in the fragrance, and, in turn, there is no unpleasant fragrance due to the mixture of the plurality of fragrances. Even when the body fluid such as urine is discharged from the wearer, in addition to the fragrance due to the liquid fragrance, the fragrance derived from the fragrance released by the cyclodextrin occurs, so that the fragrance diffused from the absorbent article It is reinforced to more strongly cover the odor when the body fluid is discharged.

Furthermore, in the absorbent article of the present invention, if the unfed cyclodextrin (the cyclodextrin which does not retain the fragrance) is used together with the cyclodextrin which retains the fragrance, the cyclodextrin which retains the fragrance described above is used. The effect can also ensure a certain amount of un-caged cyclodextrin in the absorbent article, so that the adsorption of the odor component caused by the unfed cyclodextrin can be more reliably exhibited, and Increase the deodorizing effect of the absorbent article. The unbound cyclodextrin is preferably used in a ratio of 5 to 50% by mass based on the total amount of the cyclodextrin to be used. In addition, the cyclodextrin which retains the fragrance includes, in addition to the caged complex which is contained in the inner side of the ring structure of the cyclodextrin molecule, and contains various intermolecular forces or intermolecular interactions. The cyclodextrin molecule and the fragrance are combined.

The form of the cyclodextrin to be used in the absorbent article of the present invention is not particularly limited, and various forms can be used. However, from the viewpoints of dispersibility, ease of handling during production, and improvement of body fluids such as urine discharged from the wearer. From the viewpoint of contact efficiency and the like, it is preferred to use a bond of maltodextrin cyclodextrin, amylopectin, gum arabic or the like to adjust the particle size of the cyclodextrin powder. The particle diameter of the cyclodextrin powder is not particularly limited, and may be, for example, about 5 μm to 300 μm, preferably 10 μm to 100 μm, but has a carrier sheet (liquid permeable sheet) adjacent to the cyclodextrin. The fiber structure of the fiber structure has a particularly large particle diameter. If the particle diameter of the cyclodextrin powder is larger than the fiber distance between the fiber structures constituting the carrier sheet, it is possible to prevent the cyclodextrin powder from passing through the cyclodextrin between the constituent fibers of the fiber structure. Since the contained layer flows out, the cyclodextrin can stabilize the sustained release function of the active ingredient of the deodorizing function, the fragrance, and the like, and It is fully utilized.

In addition, the particle diameter of the above-mentioned cyclodextrin powder can be dry laser diffraction by, for example, a laser diffraction/scattering particle size distribution measuring apparatus (for example, Microtrac MT3300EXII manufactured by Nikkiso Co., Ltd.). Determined by law. The dry laser diffraction scattering method is characterized in that the sample is dispersed by air while the sample is irradiated with laser light, and the particle diameter distribution of the volume reference is measured from the diffraction pattern, and in this specification, The median diameter (D50) obtained from the particle diameter distribution described above is used as the particle diameter of the powder particles. The specific measurement conditions caused by the dry laser diffraction scattering method are as follows.

Number of measurements: 1 time

Measurement time: 10 seconds

Dispersion pressure: 100kPa

Particle penetration: penetration

Particle refractive index: 1.81

Particle shape: non-spherical

Solvent: Air (Air)

Solvent refractive index: 1.00

Measuring range: 0.243~2000μm

Further, the cyclodextrin powder may be a cyclodextrin which retains an unbindered cyclodextrin or a fragrance, and may contain a small amount of a cyclodextrin which retains any active component such as a deodorant component. Any functionality of fine, and/or bonded or absorbent components (such as pulp or absorbent polymer), adsorbent components (such as zeolite, silicone, activated carbon, etc.) Component (for example, 10% by mass or less). Examples of the active ingredient include a deodorant component, an antibacterial component, and the like which have been conventionally known. Such a cyclodextrin which retains an active ingredient is contained in addition to a caged complex which contains the aforementioned active ingredient on the inner side of the cyclic structure of the cyclodextrin molecule, and includes various intermolecular forces or intermolecular forces. The cyclodextrin molecule is combined with the aforementioned active component by interaction or the like.

The cyclodextrin (that is, the cyclodextrin complex) which retains the above-mentioned active ingredient has a slow release of cyclodextrin by contact with moisture contained in a body fluid such as urine discharged from the wearer. The active ingredient retained maintains the function of the aforementioned active ingredient. Such a cyclodextrin complex can be easily obtained by, for example, adding a fragrance or an active ingredient to a solution containing an uncased cyclodextrin and stirring and mixing it. Further, the presence or absence of the cyclodextrin cage can be confirmed by elemental analysis using X-ray or the like.

In the light incontinence pad 1 of the present embodiment, the cyclodextrin-containing layer contains the above-mentioned cyclodextrin, and the mixture of the above-mentioned absorbent polymer and the liquid-retaining substance (for example, pulp), the cyclodextrin-containing absorbent layer 4, which is a carrier sheet 5, 5' formed of two liquid-permeable sheets (for example, tissue paper) on the skin-facing side and the non-skin-facing side of the cyclodextrin-containing absorbent layer 4 Further, the cyclodextrin contains at least a part of the cyclodextrin in the absorbent layer 4, and is held by the cyclodextrin-containing absorbent layer 4 by a hot-melt type adhesive. The surface of the carrier sheet 5' (cyclodextrin-retaining sheet) on the non-skin-opposed side is on the surface opposite to the skin side. If the cyclodextrin-containing layer is constructed as such, When the body fluid such as urine discharged by the user reaches the cyclodextrin-containing layer, the body fluid migrates to the lower side of the cyclodextrin-containing absorbent layer 4 by the action of gravity (non-skin opposing side) The portion is retained in the portion, so that the state in which the body fluid retained in the portion is easily contacted with the cyclodextrin held on the surface of the skin opposite surface side of the carrier sheet 5' can be formed, and the cyclodextrin can be obtained. The sustained release function of the active ingredient such as deodorizing function and fragrance can be exhibited more efficiently and effectively.

The cyclodextrin-containing layer of this type is obtained by using a cyclodextrin containing a mixture of the above-mentioned cyclodextrin and the above-mentioned absorbent polymer and the above liquid-retaining substance, and a heat-fusible type. The agent is obtained by bonding to two carrier sheets 5, 5'. Specifically, the carrier sheet 5' (cyclodextrin-holding sheet) made of a thin paper or the like is placed on the side of the wearer's skin facing side, and the carrier sheet is placed. 5' is carried out in a stationary state or on one side, and the adhesive is applied along a direction corresponding to the longitudinal direction D _L of the light incontinence pad 1 on the surface of the carrier sheet 5' on the skin facing surface side. And a cyclodextrin disposing project, wherein the cyclodextrin is disposed on at least the surface of the adhesive agent in the adhesive application region T _{H to} which the adhesive agent is applied; and the cyclodextrin contains the absorbent material The layer forming process is a mixture of an absorbent polymer and a liquid retaining substance (for example, pulp), and at least the above-mentioned adhesive agent and the aforementioned ring paste disposed in the adhesive application region T _H of the carrier sheet 5'. On the surface of the fine surface, the cyclodextrin-containing absorbent layer 4 is formed; and the carrier sheet is disposed on the surface of the cyclodextrin-containing absorbent layer 4 on the skin-facing side, with or without an adhesive. By arranging the carrier sheet 5, the above can be obtained. The cyclodextrin contains a layer.

In the cyclodextrin disposition process, the method of disposing the cyclodextrin on the surface of the adhesive which has been applied to the carrier sheet is not particularly limited, and the state of the above-mentioned powder ore can be maintained directly. The arrangement may be carried out by dispersing it in a state of a dispersion medium (for example, polysiloxane oil, mineral oil, etc.), or may be dissolved in a solvent (for example, propylene glycol, dipropylene glycol, and 1,3-butylene glycol). It is disposed in a state of a solution of a glycol such as a glycol or an ester-based organic solvent such as triethyl citrate or diethyl phthalate.

Further, in the cyclodextrin disposition project, the means for disposing the cyclodextrin is not particularly limited. For example, non-contact or contact coating may be used, and spray or plural stripe or Ω may be used. It is applied in a form. The cyclodextrin may be applied without any gap in the cyclodextrin disposition region T _C in a plan view, or a plurality of regions having no cyclodextrin present in the cyclodextrin disposition region T _C (ie, a ring) may be formed. The dextrin is coated in a manner that does not exist in the area. In particular, the cyclodextrin disposition region T _C contains an overlap region overlapping the body fluid absorption region T _{A of the} absorbent article, and it is preferable to form a plurality of cyclodextrin non-existing regions in the overlap region. When such a cyclodextrin-free region is formed, the region can function as a passage for bodily fluids such as urine discharged from the wearer. Therefore, the body fluid is not hindered by the cyclodextrin-containing absorbent layer. Soaked into the thickness direction D _{T of the} absorbent article. As a result, the absorbent article of the present invention exhibits a deodorizing function and excellent absorption performance.

Moreover, in the absorbent article of the present invention, the amount of the cyclodextrin to be applied is not particularly limited, and can be appropriately set in accordance with desired deodorizing performance, absorption performance, and the like. For example, it can be set as one absorbent article per one. It is 20mg~100mg. In addition, the cyclodextrin is arranged to be absorbed in a plan view from the viewpoint of increasing the chance of contact between the body fluid such as urine discharged by the wearer and the cyclodextrin. It is desirable that the sexual article contains the region of the body fluid absorption region T _A .

In the present embodiment, the cyclodextrin-containing layer in the cyclodextrin-containing layer contains the absorber layer 4, and contains a mixture of a cyclodextrin and the above-mentioned absorbent polymer and the liquid-retaining substance, and functions as an absorbent layer. In the present embodiment, the cyclodextrin contains an absorbent layer, and is not particularly limited as long as it has a cyclodextrin-containing absorbent layer. However, the cyclodextrin contains an absorbent layer and contains a cyclodextrin. Ideal for blends with absorbent polymers and pulp. When such a pattern is used as the cyclodextrin-containing absorbent layer, in the cyclodextrin-containing absorbent layer, the pulp collection system acts to bring the body fluid to the cyclodextrin-containing absorbent layer. Since the cyclodextrin is diffused in a wide range in the absorbing material layer by the capillary phenomenon, the body fluid can be absorbed and held in a wide range of places in the cyclodextrin-containing absorbing material layer, and is excellent as an absorbent article. In addition, since the body fluid can be absorbed and held in the cyclodextrin-containing absorbent layer, the body fluid can be retained even when the amount of body fluid such as urine discharged from the wearer is large. The cyclodextrin contains a body fluid inside the absorbent layer, and it is possible to surely contact the cyclodextrin in the cyclodextrin-containing absorbent layer over a long period of time.

Further, the cyclodextrin contains an absorber layer, and the absorption The content of the polymer and the liquid retaining substance is not particularly limited, but is preferably 60 parts by mass or less and 40 parts by mass or more per 100 parts by mass of the total. When the content of the absorbent polymer is 60 parts by mass or less, the body fluid which is in contact with the cyclodextrin can be easily present in the cyclodextrin. When the amount of the liquid-retaining substance is 40 parts by mass or more, the amount of the liquid-retaining substance is increased by a capillary phenomenon of the liquid-retaining substance, so that the body fluid can be easily diffused over a wide range. The body fluid is in contact with the aforementioned cyclodextrin in a relatively wide range.

In the light incontinence pad 1 of the present embodiment, the cyclodextrin contains the absorbent layer 4, and the cyclodextrin contains at least a part of the cyclodextrin in the absorbent layer 4 by a hot-melt type adhesive and the carrier. In the absorbent article of the present invention, the adhesive for the cyclodextrin and the cyclodextrin-retaining sheet is not particularly limited, and any conventionally known one can be used. The adhesive.

Further, in the incontinence pad 1 of the present embodiment, the adhesive agent is stretched in the longitudinal direction D _L between the carrier sheet 5' (cyclodextrin-retaining sheet) and the cyclodextrin-containing absorbent layer 4; At the same time, they are arranged in a plurality of rows in the aforementioned width direction D _W . When the adhesive is disposed in this manner, a region where the adhesive is not present (that is, a region where the adhesive is not present) is formed in the adhesive application region T _H in a plan view, and the region is used as the urine discharged from the installer. Since the body fluid acts as a passage, the body fluid is not blocked by the adhesive, and the non-skin pair in the thickness direction D _T can be diffused in the longitudinal direction D _{L of the} cyclodextrin retaining sheet. When the body fluid is permeated from the skin-facing side of the cyclodextrin-preserving sheet to the non-skin opposing surface side, the body fluid is soaked while being spread toward the surface of the cyclodextrin sheet. The body fluid which is diffused in the direction in which the cyclodextrin is held in the sheet can be brought into contact with the cyclodextrin in a wide range. As a result, the absorbent article of the present invention has excellent absorption performance as an absorbent article, and at the same time, the deodorizing function and the sustained release function of the fragrance of the cyclodextrin can be more effective and more effective. .

In the light incontinence pad 1 of the present embodiment, the application form of the adhesive is not particularly limited, and for example, it may be linear, wave-shaped, spiral, zigzag, or Ω-like in plan view. It is applied in any form such as a line or a broken line; a dot shape; a geometric pattern such as a lattice shape. And, engaging the cyclodextrin with cyclodextrin holding the adhesive sheet is used, in a top view the bonding agent can also be present without a gap in the application region followed by T _H, in the planar form (so-called Fully applied), coated on the aforementioned cyclodextrin-retaining sheet. When the adhesive is applied in such a form as a whole, the adhesive is interposed between the constituent fibers of the fiber structure constituting the cyclodextrin-retaining sheet to fill the voids in the fiber structure, and thus the cyclodextrin has been used. The cyclodextrin held by the sheet is prevented from penetrating the liquid permeable sheet and flowing out of the cyclodextrin-containing layer, and the strength of the liquid permeable sheet is increased, so that it is not easily broken when it is used. It is also difficult to produce heat shrinkage. As a result, since the absorbent article of the present invention can stably maintain the structure of the contained layer in the cyclodextrin-containing layer, the deodorizing function and the sustained release of the fragrance of the cyclodextrin in the cyclodextrin-containing layer can be obtained. The function is more stable and more effective. Further, in the second embodiment to be described later, the cyclodextrin is an absorbent article which is bonded to the sheet on the side opposite to the skin surface of the cyclodextrin, as described above, if the above-mentioned adhesive is comprehensive When it is applied to the cyclodextrin-retaining sheet, it is unsatisfactory because the cyclodextrin is prevented from maintaining the liquid permeability of the sheet because of the adhesive.

Further, in the absorbent article of the present invention, the amount of the adhesive to be applied is not particularly limited, and can be appropriately set in accordance with desired adhesive strength, liquid permeability, deodorizing performance, etc., and can be, for example, 1 to 40 g/ m ² , the ideal system is 2 to 20 g/m ² , and more preferably 4 to 10 g/m ² .

Next, a second embodiment of the present invention will be described in detail with reference to the drawings. Fig. 1 is a plan view of a light incontinence pad according to a first embodiment of the present invention, and is a plan view of a light incontinence pad according to a second embodiment of the present invention. 4 is an end view of a light incontinence pad according to a second embodiment of the present invention taken along line II-II' of FIG. 1. The light incontinence pad 1 according to the second embodiment has a cyclodextrin-containing layer (in the first embodiment, the cyclodextrin contains the absorbent material layer 4), and is a cyclodextrin composed only of cyclodextrin. a fine layer 4'; at least a portion of the cyclodextrin is held on the non-skin opposing surface side of the liquid permeable sheet 7' between the surface sheet 2 and the cyclodextrin layer 4' (maintained In the liquid-permeable sheet 7', the absorbent material such as the absorbent polymer 6 is held on the surface opposite to the holding surface, and is disposed on the skin-facing side of the absorbent material. the liquid-permeable sheet 7, together form a absorbent sheet S _a (absorption layer); and the cyclodextrin is a cyclodextrin, etc. tissue by liquid cover sheet 10 formed between the permeable sheet, and the non-skin The opposing side is covered (that is, the cyclodextrin-containing layer contains the cyclodextrin layer 4' and the cyclodextrin-coated sheet 10), and has the same configuration as that of the above embodiment.

In the light incontinence pad 1 of the present embodiment, the layer containing the cyclodextrin is composed only of the cyclodextrin cyclodextrin, so that the body fluid such as urine discharged from the user can be brought into contact with the cyclodextrin. When the chance is increased, the thickness of the layer containing the cyclodextrin can be made thin, and any product design such as thinning can be realized in accordance with the amount of absorption.

Further, in the incontinence pad 1 of the present embodiment, at least a part of the cyclodextrin is held by a non-skin pair of the liquid permeable sheet 7' located between the surface sheet and the cyclodextrin layer 4'. The liquid-permeable sheet 7' on the surface of the surface of the liquid-permeable sheet 7' is provided on the surface opposite to the holding surface (that is, the surface on the skin-facing surface side) to retain the absorbability of the absorbent polymer 6 or the like. material, with the skin being disposed in the absorbent materials of the liquid-permeable sheet 7 opposite surface side, the absorbent sheet formed of S _a (absorption layer) together. With this configuration when the light incontinence pad 1, when the body fluid such as urine discharged from the wearer reaches the loaded absorbent sheet S _A, because the fluid migration under the action of gravity in the absorbent sheet to the S _A portion side (non-skin facing surface of the side) and is retained in this portion, thus remaining in the side portion of the body fluids to the surface direction of the absorbent sheet S _a diffusion to the side of the liquid-permeable sheet 7 'slowly impregnated The body fluid can be brought into contact with the cyclodextrin held on the non-skin opposing side of the liquid permeable sheet 7' in a wide range. As a result, the sustained release function of the active component such as deodorizing function or fragrance contained in the cyclodextrin can be exhibited more efficiently and more effectively.

Further, in the second embodiment of a light incontinence pad 1, the absorbent sheet S _A, may be based of the above-described first embodiment, and a light incontinence pad 1. The absorbent sheet was produced in the same manner. Then in the second embodiment, based on the skin surface of the absorbent sheet S _A on the opposite side (i.e., liquid-absorptive sheet constituting the non-skin facing side of the permeable sheet holding surface 7 ') on Applying a hot-melt type adhesive to the direction corresponding to the longitudinal direction D _{L of} the light incontinence pad 1 and then at least in the adhesive application region T _{H to} which the adhesive has been applied The cyclodextrin layer 4' is formed on the surface of the adhesive, thereby forming a cyclodextrin layer 4'. Further, the cyclodextrin layer 4' is coated with a cyclodextrin-coated sheet 10 formed of a liquid-permeable sheet. , whereby the obtained absorbent sheet has been engaged with the S _a, containing the cyclodextrin and the cyclodextrin-containing absorbent material layer 4 and the covering sheet 10 cyclodextrins containing layer.

In the light incontinence pad 1 of the present embodiment, the cyclodextrin held by the liquid permeable sheet 7' is a cyclodextrin-coated sheet 10 formed of a liquid permeable sheet such as a thin paper. Since the non-skin opposing surface is covered, the cyclodextrin can be accurately held on the holding surface of the liquid permeable sheet 7', and the deodorizing function of the cyclodextrin, the active ingredient of the fragrance, and the like can be released. Can be played stably.

In the present embodiment, the cyclodextrin-coated sheet 10 is preferably the same material as the carrier sheet of the light incontinence pad 1 of the above-described first embodiment, that is, a fiber structure such as a tissue. If you use this As the cyclodextrin-coated sheet 10, the body fluid reaching the cyclodextrin-coated sheet 10 can be diffused in the direction of the surface of the cyclodextrin-coated sheet 10, so that the body fluid can be located as described above. The cyclodextrin on the opposite side of the skin of the cyclodextrin-coated sheet 10 is in contact in a wide range of areas. Further, when the above-mentioned fiber structure is used as the cyclodextrin-coated sheet 10, the fiber structure has a degree that the cyclodextrin does not pass between the constituent fibers of the fiber structure (for example, the above cyclodextrin) The particle size of the powder is also small. The distance between the fibers is ideal.

The present invention is applicable to various types of absorbent articles such as sanitary pads, sanitary napkins, disposable disposable diapers, and the like, in addition to the incontinence pads which are applied to the above-described respective embodiments. . In addition, the absorbent article of the present invention is not limited to the above-described embodiments, and may be appropriately combined and changed without departing from the spirit and scope of the invention. In addition, in this specification, the ordinal numbers of "first", "second", etc. are used only to distinguish the items to which the ordinal number is given, and do not mean the order, priority, importance, etc. of each item. .

1‧‧‧Light incontinence pads (absorbent articles)

2‧‧‧Surface sheet (liquid permeation layer)

3‧‧‧Inside sheet (liquid impervious layer)

4‧‧‧Cyclodextrin contains an absorbent layer

5‧‧‧ slides

5’‧‧‧ slides

6‧‧‧Absorbing polymer (absorbent material)

7‧‧‧Skin-facing side liquid permeable sheet

7'‧‧‧Non-skin opposing side liquid permeable sheet

8, 8'‧‧‧ side hem sheets

9, 9'‧‧‧ filamentary elastic members

11‧‧‧Absorbing polymer configuration area

12‧‧‧Absorbing polymer non-arranged area

13‧‧‧Absorbing polymer non-existing area

14‧‧‧Press trench

15‧‧‧High Density Department

G‧‧‧Binder

T _C ‧‧‧cyclodextrin configuration area

T _H ‧‧‧Binder coating area

T _F , T' _F ‧‧‧Spices configuration area

S _A ‧‧‧Absorbable flakes

Claims (8)

An absorbent article comprising: a liquid permeation layer; a liquid impermeable layer; an absorption layer positioned between the two layers; and a cyclodextrin-containing layer positioned between the absorption layer and the liquid impermeable layer In the absorbent article, the absorbent layer has a long direction, a wide direction, and a thickness direction, and includes: an absorbent polymer; a liquid permeable sheet that holds the absorbent polymer; and the absorbent polymer is fixed. An adhesive for the liquid permeable sheet; and a fragrance present in the end portion of the absorbent layer in the wide direction, wherein the absorbing layer is formed by sandwiching the absorbent polymer with the liquid permeable sheet Formed in the thickness direction, and has an absorbent polymer disposing region existing in a central region in the wide direction, and an absorbent polymer non-arrangement region adjacent to the wide absorbent region in the absorbent polymer disposing region. The liquid permeable sheet is formed by folding the folding line in the longitudinal direction toward the inner side in the width direction in the non-arranged region of the absorbent polymer. Further, between the folding line and the end portion in the width direction of the liquid permeable sheet, the fragrance is present in a region sandwiched by the liquid permeable sheet in the thickness direction, and the adhesive is intermittently And applied to the liquid permeable sheet, and applied to a position of the liquid permeable sheet on the skin facing surface side of the absorbent polymer; and applied to the non-skin opposing surface of the absorbent polymer The position of the liquid permeable sheet on the surface side is applied to the liquid permeability without overlapping with each other in the thickness direction. sheet. The absorbent article according to claim 1, wherein the absorbent layer does not contain pulp fibers. The absorbent article according to claim 1 or 2, wherein the absorbent layer has an absorbent polymer which is absent from the absorbent polymer in the absorbent polymer arrangement region in plan view. In the presence region, the absorbent article has a press strip groove that reaches at least the inside of the absorbent layer from the skin facing surface of the liquid permeation layer, and the press strip groove is formed in the non-existing region of the absorbent polymer in plan view. The absorbent article according to claim 1 or 2, wherein the cyclodextrin-containing layer comprises: a cyclodextrin complex formed from a cyclodextrin which retains a fragrance; and does not retain the aforementioned fragrance Cyclodextrin. The absorbent article according to claim 1 or 2, wherein the cyclodextrin-containing layer comprises a cyclodextrin powder and an absorbent material, and the cyclodextrin powder comprises a cyclodextrin. At least one of a refined and a cyclodextrin complex. The absorbent article according to claim 5, wherein the absorbent material is a mixture of an absorbent polymer and a liquid retaining substance, and the absorbent polymer and the liquid retaining substance are each A total of 100 parts by mass is contained in an amount of 60 parts by mass or less and 40 parts by mass or more. An absorbent article according to claim 5, wherein The cyclodextrin-containing layer further includes: the cyclodextrin powder and the cyclodextrin which are located between the absorbent material and the liquid impermeable layer and which retain at least a part of the cyclodextrin powder Keep the sheets. The absorbent article according to the first or second aspect of the invention, wherein the cyclodextrin-containing layer comprises: a cyclodextrin powder comprising at least one of a cyclodextrin and a cyclodextrin complex. And a cyclodextrin-coated sheet positioned between the cyclodextrin powder and the liquid impermeable layer and covering the cyclodextrin powder, at least a portion of the cyclodextrin powder being fixed at The aforementioned absorbent layer.