JP7449807B2 - absorbent articles - Google Patents

Description

The present invention relates to absorbent articles such as sanitary napkins, panty liners, and incontinence pads, and more particularly to absorbent articles in which a lotion layer is provided in a predetermined region of the skin contacting surface.

BACKGROUND ART Absorbent articles coated with lotions have been known for the purpose of preventing skin problems such as itching and rashes on the wearer's skin. For example, in Patent Document 1 below, a hydrophilic agent that makes the top sheet hydrophilic is held in part or the whole of the top sheet, and part or the whole of a pair of three-dimensional gathers and/or a pair of leg gathers, It is disclosed that a skin care agent that is also a water repellent agent that makes the gathers water repellent is retained. Furthermore, Patent Document 2 listed below discloses an absorbent body in which a skin care composition is placed on the cufflinks.

Japanese Patent Application Publication No. 2012-110414 Special Publication No. 2002-509457

In the absorbent articles described in Patent Documents 1 and 2, the skin care agent is applied over almost the entire length of the three-dimensional gathers or leg gathers, so that skin problems for the wearer can be reliably prevented. However, there is a concern that the water-repellent nonwoven fabric forming the gathers becomes hydrophilic due to the application of the skin care agent, which may reduce the absorption performance of the absorbent article.

On the other hand, for wearers who often turn and turn during sleep, three-dimensional gathers that stand up toward the skin are formed on both sides of the skin-contacting surface, and hip joints that extend laterally on both sides of the back of the absorbent article are formed. It has become essential to use sanitary napkins for night use that have a flap for holding. However, when sleeping with this nighttime sanitary napkin on, the unevenness of the surface due to twists and wrinkles of the hip-holding flap and the unevenness of the surface of the skin contact part of the three-dimensional gathers can cause the skin surface to rub, causing itching and irritation of the skin. Skin problems such as these may occur.

Therefore, the main object of the present invention is to provide an absorbent article that prevents skin troubles from occurring without reducing absorption performance.

In order to solve the above problems, as a first aspect, side nonwoven fabrics are disposed on both sides of the skin contacting surface over the entire length in the front and back direction,
The side nonwoven fabric forms a hip-holding flap that extends laterally at the rear of the outer side portion in the width direction of the absorbent article;
An absorbent article characterized in that a lotion layer is provided on the skin-contacting surface of the side nonwoven fabric at the rear of the absorbent article, and the lotion layer is not provided on the side nonwoven fabric and other members in front of this. Goods are provided.

In the first aspect, the lotion layer is provided on the skin-contacting surface of the side non-woven fabric at the rear of the absorbent article, so that the rear part (hip part) where slipping and twisting is likely to occur when tossing and turning during sleep is against the skin. Prevents skin problems caused by rubbing against surfaces. On the other hand, since the lotion layer is not provided on the front part of the side nonwoven fabric and other members (especially the topsheet), the water-repellent side nonwoven fabric becomes hydrophilic by applying the lotion, and the topsheet becomes hydrophilic. can be prevented from decreasing, and the absorbent performance of the absorbent article can be prevented from decreasing.

As a second aspect, the lotion layer is provided on the outer side in the width direction from the fold line where the hip-holding flap is folded back toward the skin contacting surface of the absorbent article when the absorbent article is individually packaged; 2. The absorbent article according to claim 1, wherein a transfer area of the lotion layer when the hip-holding flap is folded back along the fold line is provided on the side nonwoven fabric on the widthwise inner side of the fold line. .

In the second aspect, the lotion layer is provided on the outside in the width direction from the fold line when individually packaged, and the hip hold flap is folded back along the fold line when individually packaged, so that the lotion layer is placed in a position symmetrical to the fold line. A transfer area is formed to which the lotion of the lotion layer is transferred. Therefore, the area where the lotion layer is provided can be minimized, and the lotion can be prevented from adhering to unnecessary areas.

As a third aspect, the side nonwoven fabric forms three-dimensional gathers in which the widthwise inner side portion of the absorbent article stands up toward the skin side of the wearer,
3. In the three-dimensional gather, the lotion layer is provided at a portion of the standing tip side that comes into direct contact with the wearer's skin when worn, and the lotion layer is not provided at the middle portion of the standing position. An absorbent article according to the present invention is provided.

In the third aspect, when a lotion layer is provided on the three-dimensional gathers, the lotion layer is provided on the part of the standing end of the three-dimensional gathers that comes into direct contact with the wearer's skin when worn, and is not provided on the middle part of the three-dimensional gathers. That's what I do. Therefore, the inherent water repellency and hydrophilic properties of the side nonwoven fabric are not changed by the lotion layer, and the function of the three-dimensional gathers is prevented from deteriorating.

As a fourth aspect, in the widthwise inner side portion of the side nonwoven fabric, three-dimensional gathers that stand up toward the wearer's skin side are formed at the middle part in the front and back direction, and non-standing portions at both ends in the front and back direction. is formed,
The absorbent article according to any one of claims 1 and 2, wherein the lotion layer is provided on the rear non-standing portion, and the lotion layer is not provided on the three-dimensional gathers.

In the fourth aspect, the lotion layer is not provided in the middle part where the three-dimensional gathers are formed in the front-rear direction among the inner widthwise portions of the side nonwoven fabric where the three-dimensional gathers are formed, and the lotion layer is not provided in the middle part where the three-dimensional gathers are formed. A lotion layer is provided on the standing portion. Therefore, the function of the side nonwoven fabric does not change in the entire three-dimensional gather due to the provision of the lotion layer, and the effect of blocking body fluids can be maintained.

As described in detail above, according to the present invention, it is possible to provide an absorbent article that does not cause skin troubles without reducing absorption performance.

1 is a partially cutaway developed view showing a sanitary napkin 1 according to a first embodiment of the present invention. 2 is a view taken along the line II-II in FIG. 1. FIG. 2 is a view taken along the line III-III in FIG. 1. FIG. 2 is a view taken along the line IV-IV in FIG. 1. FIG. FIG. 3 is a developed view showing a sanitary napkin 1A according to a second embodiment. FIG. 2 is a plan view showing a sanitary napkin 1A with flaps on both sides folded for individual packaging. FIG. 7 is a developed view showing a sanitary napkin 1B according to a third embodiment.

Embodiments of the present invention will be described in detail below with reference to the drawings.

[First form example]
(Basic structure of sanitary napkin 1)
As shown in FIGS. 1 to 4, a sanitary napkin 1 according to a first embodiment of the present invention includes a liquid-impermeable back sheet 2 made of a polyethylene sheet, etc., and a material such as menstrual blood or vaginal discharge (hereinafter referred to as A liquid-permeable surface sheet 3 that allows liquids (collectively referred to as body fluids) to permeate through it quickly, an absorbent body 4 made of cotton-like pulp or synthetic pulp interposed between these two sheets 2 and 3, and a skin-contacting material. A side nonwoven fabric 7 is provided on both sides of the surface side along the front and back direction over almost the entire length, and around the absorbent body 4, the back sheet 2 and the top sheet 3 are provided at the front and rear edges thereof. The outer edges of the back sheet 2 and the back sheet 2 are joined by adhesive such as hot melt, heat sealing, ultrasonic sealing, or other bonding means, and the outer edges of the back sheet 2 and the By joining the side nonwoven fabric 7 with an adhesive such as hot melt, heat sealing, ultrasonic sealing, or other joining means, a flap portion without an absorbent body is formed. In the illustrated example, in order to maintain the shape of the absorbent body 4 and improve its diffusivity, the absorbent body 4 is surrounded by an enveloping sheet 5 made of crepe paper or nonwoven fabric. It does not need to be provided. Further, although not shown, a second sheet made of a hydrophilic nonwoven fabric or the like having substantially the same shape as the top sheet 3 may be provided adjacent to the non-skin side of the top sheet 3.

Hereinafter, the structure of the sanitary napkin 1 will be explained in more detail.
For the back sheet 2, a sheet material such as polyethylene that has at least water-blocking properties is used, but from the viewpoint of preventing stuffiness, it is desirable to use a sheet material that has moisture permeability. This water-blocking and moisture-permeable sheet material is made by melt-kneading an inorganic filler into an olefin resin such as polyethylene or polypropylene, forming a sheet, and then stretching the sheet in a uniaxial or biaxial direction. A sheet is preferably used. One or more adhesive layers (not shown) are formed on the non-skin side (outer surface) of the back sheet 2 along the front-back direction of the napkin, and fix the sanitary napkin 1 to underwear when worn on the body. It looks like this. As the back sheet 2, a polylaminated nonwoven fabric made by laminating a plastic film and a nonwoven fabric may be used.

Next, as the top sheet 3, a perforated or non-perforated nonwoven fabric, a porous plastic sheet, or the like is preferably used. The material fibers constituting the nonwoven fabric can be synthetic fibers such as olefins such as polyethylene or polypropylene, polyesters, and polyamides, recycled fibers such as rayon and cupro, and natural fibers such as cotton. A nonwoven fabric obtained by an appropriate processing method such as a method, a spun bond method, a thermal bond method, a melt blown method, or a needle punch method can be used. Among these processing methods, the spunlace method is superior in that it has high flexibility and drapability, and the thermal bond method is superior in that it is bulky and has high compression recovery properties. When a large number of through holes are formed in the top sheet 3, body fluids are quickly absorbed, resulting in excellent dry touch properties. The fibers of the nonwoven fabric may be either long fibers or short fibers, but it is preferable to use short fibers to give the texture of toweling. Further, in order to facilitate embossing, it is preferable to use olefin fibers such as polyethylene or polypropylene having a relatively low melting point. Further, composite fibers such as core-sheath type fibers, side-by-side type fibers, and split type fibers, which have a core of fibers with a high melting point and a sheath of fibers with a low melting point, can also be suitably used.

The absorbent body 4 interposed between the back sheet 2 and the top sheet 3 is made of, for example, cotton-like pulp and a water-absorbing polymer. The water-absorbing polymer is mixed into the pulp constituting the absorbent body, for example, in the form of granular powder. Examples of the pulp include chemical pulps obtained from wood, cellulose fibers such as dissolving pulp, and those made of artificial cellulose fibers such as rayon and acetate. Softwood pulps with longer fiber lengths have better functionality and properties than hardwood pulps. It is suitable for use in terms of price. The basis weight of the absorbent body 4 is preferably 100 to 750 g/m ² , preferably 200 to 700 g/m ² . However, when providing the middle high part 6 described later, the surrounding area other than the middle high part 6 is 100 to 480 g/m ² (basis weight of the absorbent body 4), and the middle high part 6 is 200 to 750 g/m ² (the middle high part 6 and the absorbent body 4) is preferable.

Further, the absorbent body 4 may be mixed with synthetic fibers. The synthetic fibers can be, for example, polyolefins such as polyethylene or polypropylene, polyesters such as polyethylene terephthalate or polybutylene terephthalate, polyamides such as nylon, and copolymers of these. A mixture may also be used. Further, composite fibers such as core-sheath type fibers, side-by-side type fibers, split type fibers, etc., which have a core of fibers with a high melting point and a sheath of fibers with a low melting point, can also be used. In the case of hydrophobic fibers, it is desirable that the synthetic fibers be surface-treated with a hydrophilic agent so that they have an affinity for body fluids.

On the skin side of the absorbent body 4, a mid-high portion 6 of the absorbent body is formed which is thickened toward the skin side. The absorbent body 4 and the mid-high portion 6 may be manufactured separately and then laminated in an assembly process, or may be integrally formed by three-dimensionally stacking the absorbent body. Alternatively, a two-stage stacked structure may be adopted in which the middle and high portions 6 are stacked on the upper stage of the absorbent body 4.

At least on both sides of the area corresponding to the body fluid discharge part H, embossed parts 10 are formed in an appropriate planar shape and are recessed from the skin-contacting surface side of the topsheet 3 toward the non-skin side. In the illustrated example, there are embossed portions 10A extending in the front-rear direction of the napkin on both sides of the region corresponding to the wearer's body fluid discharge portion H, and a substantially crescent-shaped flat surface that bulges forward in the widthwise central portion in front of the embossed portions 10A. An embossed part 10B that extends in the napkin front-rear direction, and an embossed part 10C that extends in the front-rear direction of the napkin on both sides of the area corresponding to the wearer's buttocks behind the embossed part 10A, and an embossed part 10C that extends rearward in the widthwise central part of the napkin. An embossed portion 10D having a bulging curved shape is provided.

In the illustrated example, the width of the top sheet 3 is slightly longer than the width of the absorbent core 4, as shown in the cross-sectional views of FIGS. The outer side is a side nonwoven fabric 7 different from the top sheet 3, specifically, an appropriate repellent fabric depending on the purpose of preventing menstrual blood, vaginal discharge, etc. from penetrating, or increasing the texture. A side nonwoven fabric 7 made of a nonwoven fabric material subjected to water treatment or hydrophilic treatment is provided. The side nonwoven fabric 7 may be made of natural fibers, synthetic fibers, recycled fibers, or the like and formed by an appropriate processing method, but it is preferable to eliminate stiffness and prevent stuffiness. Therefore, it is best to use a nonwoven fabric with a low basis weight and breathability. Specifically, it is desirable to use a nonwoven fabric with a basis weight of 13 to 23 g/ ^m2 , and to reliably prevent the permeation of body fluids, silicone-based, paraffin-based, alkylchromic chloride-based water repellents, etc. are used. A water-repellent nonwoven fabric coated with is preferably used.

As shown in FIGS. 2 to 4, the side nonwoven fabric 7 is adhesively bonded with an adhesive such as hot melt from a predetermined inner position to the outer edge of the back sheet 2 at a portion outside the middle portion in the width direction. The laminated sheet portions of the side nonwoven fabric 7 and the back sheet 2 form flap portions on both sides of the absorbent body 4 in which the absorbent body 4 is not interposed. This flap part forms a pair of left and right wing-shaped flaps W, W at a position on the side of the absorber that corresponds to the body fluid discharge part H of the wearer, and a hip-holding flap W at a position closer to the buttocks (rear side) than this. _B and form W _B. Adhesive layers (see 8a and 8b in FIG. 6) are provided on the outer surfaces of these wing-shaped flaps W, W and hip-holding flaps _WB , _WB , respectively, so that when worn on the shorts, the wing-shaped flaps W. , W is folded back to the opposite side (back sheet 2 side) at the base end fold line RL (see Fig. 1), wrapped around the crotch part of the shorts and fastened, and the hip-holding flap W _B is It is designed to attach to the inside of the shorts. In the present sanitary napkin 1, as long as at least the hip-holding flap _WB is provided, the wing-shaped flap W is optional and may not be provided in particular.

On the other hand, the inner side portion of the side nonwoven fabric 7 is folded back almost double, and one or more pieces are fixed at both ends or at appropriate positions in the front and back direction at the middle part in the front and back direction inside this double sheet. In the illustrated example, three thread-like elastic elastic members 9, 9, . . . are arranged in an extended state. At the front and rear ends of this double sheet portion, as shown in FIG. 4, the non-standing portions 7b are folded outward once and laminated to form non-standing portions 7b bonded to the absorbent body 4 side. As a result, as shown in FIGS. 2 and 3, the arrangement range of the filamentous elastic stretchable members 9 in the front-rear intermediate portion becomes a three-dimensional gather BS that stands up on the skin side due to the contractile force of the filamentous elastic stretchable members 9. , BS are formed in left and right pairs. The thread-like elastic stretchable members 9... are the upright tip of the three-dimensional gathers BS, the folded part obtained by folding the double sheet part outward once (near the edge 7a of the side nonwoven fabric 7 on the inner side of the napkin), and these parts. One each is arranged in the middle part, and no one is arranged in the lower side in the standing direction. The outer surface of the folded portion of the double sheet portion on which the filamentous elastic stretchable members 9 are arranged comes into close contact with the wearer's skin when the sanitary napkin 1 is worn.

As shown in FIGS. 2 and 3 in the above embodiment, the cross-sectional shape of the three-dimensional gathers BS is formed into a substantially doglegged cross-sectional shape that is bent once at the middle part in the upright direction, but when the three-dimensional gathers BS is bent twice It is possible to widely adopt a known form, such as a substantially Z-shaped cross section or a linear shape without a bent portion. However, the section of the three-dimensional gathers BS that is bent once or twice or more at the middle part in the standing direction so that the part that contacts the skin at the standing end of the three-dimensional gathers BS forms a clear surface with a predetermined width It is preferable to have a Z-shape and to have a structure in which thread-like elastic elastic members 9 are arranged at least on both sides of the folded portion on the upright tip side that becomes the skin contact surface. As a result, the skin-contacting portion of the upright tip of the three-dimensional gathers BS is formed into a planar shape having a predetermined width, so that the region in which the lotion layer 11, which will be described later, is arranged can be clarified.

(lotion layer)
In this sanitary napkin 1, a lotion layer 11 is provided on the skin-contacting surface of the side nonwoven fabric 7 at the rear of the napkin, and the lotion layer 11 is not provided on the side nonwoven fabric 7 and other members in front of this. . The lotion layer 11 protects the skin from irritation caused by contact with the side nonwoven fabric 7, and is made of a lotion that is retained by being applied to the surface of the side nonwoven fabric 7 that is in direct contact with the wearer's skin. has been done.

The "other members" include all members constituting the sanitary napkin 1 other than the side nonwoven fabric 7, and particularly include the top sheet 3 that covers the skin side of the absorbent core 4. In addition, the fact that the lotion layer 11 is not provided means that the lotion is not applied at all, or that when the lotion is applied to the lotion layer 11, the lotion is slightly scattered or protrudes around the lotion layer 11. This concept also includes a case where the lotion is attached with a much smaller basis weight than the applied basis weight of the retained lotion.

The lotion preferably has a composition containing glycerin as a main component. By using glycerin as the main component, it has excellent moisturizing and lubricating effects. Particularly preferred is one containing 70 to 90% by weight of glycerin and 10 to 30% by weight of water. In this way, a lotion that is mainly composed of glycerin and contains an appropriate amount of water is not only preferable as a moisturizer when transferred to the skin, but also retains water as bound water in the glycerin (glycerin has extremely high water retention properties). It is preferable because it is hard to rot (high) and is not perishable. That is, from this point of view, when using a lotion containing water, it is necessary to contain a large amount of glycerin to ensure a sufficient surface moisture content (for example, 3 to 10%) and to lower the water activity value of the lotion. , for example, 0.8 or less, more preferably 0.3 to 0.7, particularly preferably 0.3 to 0.5, the growth of microorganisms is suppressed even without containing preservatives, and the storage stability is good. In addition, the moisturizing effect when transferred to the skin is also high.

The lotion may contain one or more additives selected from the group of emulsifiers, phosphate esters, paraffins, and surfactants. As the surfactant, nonionic surfactants including ether type nonionic surfactants and EO/PO type surfactants are preferred. In order to improve the shelf life of the product, the lotion may contain a preservative, but since the lotion is transferred to the skin and moisturizes the skin, it is desirable not to contain a preservative.

The method of applying the lotion may be either a non-contact method such as a spray method or a contact method such as a slot method. In addition, gravure coating or flexo coating using printing technology may be used.

The applied basis weight of the lotion in the lotion layer 11 (the basis weight of the lotion applied area) is preferably 1 to 15 g/m ² , preferably 2 to 10 g/m ² . In the case of providing the transfer area 12 described in the second embodiment example below, the application weight to the lotion layer 11A is 2 to 30 g/m ² , preferably 4 g/m 2 , taking into account the amount of transfer to the transfer area 12 . ~20g/m ² is desirable.

In the embodiment shown in FIG. 1, the lotion layer 11 is provided over almost the entire skin-contacting surface of the side nonwoven fabric 7 from the center in the front-rear direction to the rear end of the sanitary napkin 1. In the three-dimensional gathers BS, the folded portion outward in the width direction of the double sheet portion on which the three thread-like elastic elastic members 9 are arranged is the surface that comes into close contact with the wearer's skin when worn on the standing tip side. The lotion layer 11 is provided on the surface facing the skin. Further, the hip-holding flap _WB is provided on the skin-contacting surface of the side nonwoven fabric 7.

As shown in FIG. 1, the lotion layer 11 is preferably provided on the rear side of the sanitary napkin 1, which includes exactly half the position in the front-back direction of the sanitary napkin 1. That is, the front end of the lotion layer 11 is located on the rear side including exactly half the position in the front-back direction of the sanitary napkin 1, more preferably at the exactly half position, and preferably The rear end of the sanitary napkin 1 is preferably located near the rear end of the sanitary napkin 1 in the case of a second embodiment described below. Since the rear part of the sanitary napkin 1 is prone to twisting or slipping when worn and the skin is likely to be rubbed, the provision of the lotion layer 11 can protect the skin from damage caused by rubbing.

The lotion layer 11 is provided only on the rear portion of the side nonwoven fabric 7, and is not provided on the front portion of the side nonwoven fabric 7 or other members constituting the sanitary napkin 1, particularly the top sheet 3. The rear part of the sanitary napkin 1 is the part that is interposed between the body (buttocks) and the futon when sleeping on the back and tends to feel stiff or uncomfortable, and the skin side is the part of the sanitary napkin 1 that tends to feel stiff or uncomfortable when sleeping on the back. This is the area where the protrusions come into contact with the skin and are likely to cause skin problems such as itching and rashes. Therefore, in this sanitary napkin 1, the lotion layer 11 is provided only in the rear part of the sanitary napkin 1, which is the cause of such skin troubles, so that the skin can be protected from chafing and the like. In particular, since the hip-holding flap W _B is made of a laminated sheet of the back sheet 2 and the side nonwoven fabric 7 without the intervening absorbent body 4, the stiffness of the back sheet 2 is directly absorbed without going through the bulky absorbent body 4. Since this is a region where the skin is easily transmitted, providing the lotion layer 11 in this region greatly contributes to the effect of preventing skin troubles.

On the other hand, since the lotion layer 11 is not provided in the front of the sanitary napkin 1, the absorption and diffusion of body fluids in and around the area corresponding to the body fluid discharge part is not inhibited by the lotion layer 11. Body fluid absorption performance can be maintained. Furthermore, since the lotion layer 11 is not provided on any member other than the side nonwoven fabric 7, especially on the topsheet 3, there is no fear that the lotion layer 11 will reduce the hydrophilicity of the topsheet 3, and the body fluid absorption performance can be maintained.

In the three-dimensional gathers BS, as shown in FIG. 3, the lotion layer 11 is provided in the part of the standing tip side that comes into direct contact with the wearer's skin when worn, and the lotion layer 11 is provided in the middle part of the standing up position. Preferably, it is not provided. By providing the lotion layer 11 on the side nonwoven fabric 7, there is a risk that the inherent properties of the nonwoven fabric such as water repellency and hydrophilicity may change (for example, a water repellent nonwoven fabric may become hydrophilic due to the lotion layer 11). Since the lotion layer 11 is not provided in the upright intermediate portion of the three-dimensional gathers BS to be blocked, the original function of the nonwoven fabric can be exhibited, and the function of the three-dimensional gathers can be prevented from deteriorating. The portion on the upright tip side of the three-dimensional gathers BS on which the lotion layer 11 is provided is the portion of the three-dimensional gathers BS that directly contacts the wearer's skin surface when worn, and in the embodiment shown in FIG. , refers to the folded portion of the double sheet portion where the three thread-like elastic elastic members 9... are arranged.

[Second form example]
Next, a sanitary napkin 1A according to a second embodiment of the present invention will be described based on FIGS. 5 and 6. In the sanitary napkin 1A of the second embodiment, the points that are different from the sanitary napkin 1 of the first embodiment described above will be explained, and the same points as the sanitary napkin 1 of the first embodiment will be denoted by the same reference numerals in the drawings. The explanation will be omitted.

In the sanitary napkin 1A of the second embodiment, as shown in FIGS. 5 and 6, when individually packaging the sanitary napkin 1A, the hip-holding flap W _B is placed on the skin-contacting surface of the sanitary napkin 1A. The lotion layer 11A is provided on the outside in the width direction from the folding line L, _which is folded back along the folding line L. A transfer area 12 of the lotion layer 11 is provided. In the sanitary napkin 1A, the lotion is applied only to the lotion layer 11A, and the lotion applied to the lotion layer 11A is folded back against the fold line L by folding back the hip-holding flap _WB when individually packaged. The image is transferred to a line-symmetrical position.

It is preferable that the lotion layer 11A is formed in the shape of a long band (rectangular shape) in the napkin front-rear direction having a predetermined width from just outside the fold line L, so that the transfer area 12 is also formed immediately outside the fold line L. The napkin is formed into a long strip (rectangular shape) in the longitudinal direction of the napkin and has a predetermined width from the inside. As shown in FIG. 6, the lotion layer 11A may be provided in the area where the skin-contacting surfaces of the side nonwoven fabrics 7 face each other when the hip-holding flap _WB is folded back along the folding line L. For example, the shape is not limited to the above-mentioned rectangular shape, but may be formed in any arbitrary shape, for example, the edges of the sanitary napkin 1A in the front and back direction may be formed in a shape that follows the shape of the outline of the sanitary napkin 1A.

In the sanitary napkin 1A according to the second embodiment, the lotion in the lotion layer 11A provided on the hip-holding flap _WB is transferred by folding back the hip-holding flap _WB when individually packaged. The application area can be minimized, and the lotion can be prevented from adhering to unnecessary areas. In particular, when applying a lotion by spray, there is a tendency for the lotion to scatter to the surroundings as it is a non-contact type. However, in this embodiment, the lotion layer 11A is applied only to the hip-hold flap _WB , and the surface Since the lotion is not directly applied to the three-dimensional gathers BS portion adjacent to the sheet 3, and the lotion of the lotion layer 11A is transferred and retained, it is possible to almost eliminate the scattering of the lotion onto the top sheet 3. can. In addition, since the lotion layer 11A is provided in the area where the skin-contacting surfaces of the side nonwoven fabric 7 face each other when the hip-holding flap _WB is folded back along the fold line L, the sanitary napkin 1A is individually packaged. Therefore, even when folded into a small size, the lotion can be prevented from adhering to members other than the side nonwoven fabric 7, such as the top sheet 3 and the back sheet 2, and there is no possibility of adversely affecting the absorption performance of the sanitary napkin 1A.

The separation distance between the lotion layer 11A and the fold line L in the napkin width direction is preferably 0 (no separation) so that the lotion layer 11A and the transfer area 12 are continuously provided, but it is preferable that the separation distance is 10 mm or less. They may be separated within a range.

Further, as shown in FIG. 5, the separation distance C in the napkin width direction between the transfer area 12 and the napkin inner edge 7a of the side nonwoven fabric 7 may be omitted; It is preferable to form a gap such that the lotion agent in the lotion layer 11A can be prevented from spilling out to the topsheet 3 side even when pressurized by folding during individual packaging. This separation distance C can be, for example, 1 to 10 mm.

In order to individually package the sanitary napkin 1A, as shown in _FIG . A flap release sheet 13 is disposed to integrally cover the adhesive layers 8a and 8b, and a release sheet (not shown) for the main body covers the adhesive layer (not shown) provided on the non-skin side of the back sheet 2 of the main body portion. A packaging sheet (not shown) formed with a size slightly larger than the sanitary napkin 1A is placed on the outer surface of the release sheet for the main body, and together with the packaging sheet, a plurality of sanitary napkins 1A are placed in the front-rear direction, Preferably, the packaging sheet is folded into four parts and both sides of the opened packaging sheet are heat-sealed, and the unsealed end is secured with tape or the like.

[Third form example]
Next, a sanitary napkin 1B according to a third embodiment of the present invention will be described based on FIG. 7. In the sanitary napkin 1B of the third embodiment, points different from the sanitary napkin 1 of the first embodiment described above will be explained, and the same points as the sanitary napkin 1 of the first embodiment will be denoted by the same reference numerals in the drawings. The explanation will be omitted.

In the sanitary napkin 1B of the third embodiment, as shown in FIG. 7, a lotion layer 11B is provided on the hip-holding flap _WB , and a double sheet folded portion of the side nonwoven fabric 7 on the inner side in the width direction of the napkin. In this case, the lotion layer 11B is provided on the non-standing portion 7b at the rear end, and the lotion layer 11B is not provided on the three-dimensional gathers BS at the intermediate portion in the front-rear direction. Since body fluids may adhere to the three-dimensional gathers BS, it is undesirable for the function of the side nonwoven fabric 7 to change due to application of lotion, and the effect as a three-dimensional gathers BS is more reliable by not applying lotion. It is thought that the leakage prevention effect will be enhanced.

The lotion layer 11B provided on the hip holding flap _WB is also provided at the rear of the sanitary napkin 1B, specifically at the rear of the center of the sanitary napkin 1B in the front-rear direction and adjacent to the three-dimensional gathers BS. However, in order to prevent the lotion of the lotion layer 11B from being transferred to the three-dimensional gathers BS due to the three-dimensional gathers BS falling down to the outside when worn, the non-standing portion 7b located behind the three-dimensional gathers BS is The lotion layer 11B may be provided only in the adjacent portion.

When providing the lotion layer 11B on the non-upright portion 7b, it is preferable to apply the lotion to the same area as the adhesive application area for adhering the side nonwoven fabric 7 to the absorbent body 4 side of the non-upright portion 7b.

[Other form examples]
In the above embodiment, the three-dimensional gathers BS that stand up toward the skin of the wearer are formed by the inner portion of the side nonwoven fabric 7, but the three-dimensional gathers BS may not be provided. That is, the inner side portion of the side nonwoven fabric 7 may be joined to the topsheet 3 over the entire length. In this case, the thread-like elastic stretchable members 9 are also not arranged.

1, 1A, 1B...Sanitary napkin, 2...Back sheet, 3...Top sheet, 4...Absorber, 5...Encapsulating sheet, 6...Middle and high part, 7...Side nonwoven fabric, 9...Filiform elastic elastic member, 10... Embossed part, 11/11A/11B...Lotion layer, 12...Transfer area

Claims (4)

Side nonwoven fabrics are arranged on both sides of the skin-contacting surface over the entire length in the front and back direction,
The side nonwoven fabric forms a hip-holding flap that extends laterally at the rear of the outer side portion in the width direction of the absorbent article;
An absorbent article characterized in that a lotion layer is provided on the skin-contacting surface of the side nonwoven fabric at the rear of the absorbent article, and the lotion layer is not provided on the side nonwoven fabric and other members in front of this. Goods. The lotion layer is provided on the outside in the width direction from the fold line in which the hip-holding flap is folded toward the skin-contacting surface of the absorbent article when individually packaging the absorbent article, and the lotion layer is provided on the outside in the width direction from the fold line. The absorbent article according to claim 1, wherein the inner side nonwoven fabric is provided with a transfer area of the lotion layer when the hip-holding flap is folded back along the fold line. The side nonwoven fabric forms a three-dimensional gather in which the inner side portion in the width direction of the absorbent article stands up toward the skin side of the wearer,
3. In the three-dimensional gather, the lotion layer is provided at a portion of the standing tip side that comes into direct contact with the wearer's skin when worn, and the lotion layer is not provided at the middle portion of the standing position. The absorbent article described in . In the widthwise inner side portion of the side nonwoven fabric, three-dimensional gathers that stand up toward the wearer's skin are formed at the middle portion in the front and back direction, and non-standing portions are formed at both ends in the front and back direction, respectively.
3. The absorbent article according to claim 1, wherein the lotion layer is provided in the rear non-standing portion, and the lotion layer is not provided in the three-dimensional gathers.

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