JP2003038558A - Packing structure of absorbent article - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a packing structure by which an absorbent article which can prevent clothes from being stained by making a structure in which projecting parts such as wing flaps exhibit a leakproof function can be suitably packed. SOLUTION: The packing structure for the absorbent article with projecting parts each projecting sideward on both side parts has the first pressure-sensitive adhesive parts 10 on using face sides facing to the skin on the projecting parts when the projecting parts are developed and the second pressure-sensitive adhesive parts 11B on back face sides except the projecting parts and the projecting parts are folded back to the back face side and packing is performed under a condition where the first pressure-sensitive adhesive parts 10 and the second pressure-sensitive adhesive parts 11B are covered with a covering material 50.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a sanitary napkin,
The present invention relates to a packaging structure for absorbent articles that absorbs and absorbs body fluids such as panty liners, sheets of vaginal discharge, and incontinence pads.

[0002]

2. Description of the Related Art For example, a sanitary napkin is known which has laterally projecting portions, for example, so-called wing flaps, on both sides.

In this type, the wing flaps on both sides are wrapped around the crotch part of the underwear (for example, panties), and the wing flaps are fixed to the outer surface of the underwear by using an adhesive layer provided in advance, This is to prevent the napkin from slipping. It is also known that a pressure-sensitive adhesive layer provided in advance on the back surface of the napkin body (the surface on the side opposite to the use surface) is used to stop the inner surface of the underwear to prevent the displacement.

[0004]

However, it has been found that the wing flap's slippage-preventing effect is not very effective in preventing the slippage due to "wrinkling" of the underwear associated with active exercise.

Further, when menstrual blood flows laterally from the side edge of the napkin, the wing flap is in a state in which the crotch part of the undergarment is rolled up, so that even if the wing flap has a function of preventing the crotch part of the underwear from becoming dirty. It was found that the side leakage prevention effect was not sufficient.

[0006] Therefore, a main object of the present invention is to provide a packaging structure capable of suitably packaging an absorbent article in which an overhanging portion such as a wing flap exhibits a side leakage preventing function.

Still another object is to provide an absorbent article or a packaging structure thereof in which the first adhesive portion and the second adhesive portion can be commonly covered with a coating material, particularly an outer sheet.

Further problems can be inferred from the following explanation.

[0009]

The present invention which has solved the above-mentioned problems is as follows.

<Invention according to claim 1> A packaging structure for absorbent articles having laterally projecting portions on both sides, wherein the projecting portions face the skin when they are in a developed state. A packaging structure for an absorbent article, wherein the absorbent article has an adhesive portion on the side of the use surface, the projecting portion is folded to the back surface side, and the entire absorbent article is wrapped with a covering material.

(Advantageous effects) With regard to the absorbent article according to the present invention, in the overhanging portion thereof, by having the adhesive portion on the side of the use surface (the surface for receiving body fluid) facing the skin when the absorbent article is in the expanded state, for example, As will be described later, the adhesive portion can be adhered to the skin of the inner crotch portion of the crotch thigh base, or to the skin of the front side of the inner crotch portion or the skin of the buttocks to prevent the absorbent article from shifting. Further, when the body fluid tries to laterally leak toward the overhanging portion from the main body side, the overhanging portion is present so as to face the skin, so that the transition to the overhanging portion can be suppressed, and even if it shifts, The transfer of the bodily fluid to the side edge of the overhanging part is prevented, or if the overhanging part has absorbency, the transfer to the side edge is prevented by absorption, etc. It In the absorbent article having such a peculiar structure, it is possible to achieve compactness by folding the overhanging portion to the back surface side, and by covering the entire absorbent article with a covering material, it is hygienic until use. Can be maintained in a state.

<Invention of Claim 2> A packaging structure for an absorbent article having laterally projecting portions on both sides, wherein the projecting portions face the skin when they are in a developed state. Has a first adhesive portion on the use surface side, and has a second adhesive portion on the back surface side excluding the projecting portion,
The absorbent article packaging structure, wherein the projecting portion is folded to the back side and the entire absorbent article is wrapped with a covering material.

(Functions and Effects) By having the first adhesive portion and the second adhesive portion, the effect of preventing misalignment is enhanced.

<Invention of Claim 3> The coating material is a single-layer sheet having a releasing property on the surface facing the adhesive portion,
The packaging structure for absorbent articles according to claim 1 or 2, wherein the single-layer sheet wraps the entire absorbent article.

(Functions and Effects) By using a sheet having a releasability on the surface facing the adhesive portion, it is possible to wrap the entire absorbent article while protecting the adhesive portion with a single layer sheet.

<Invention according to claim 4> The covering material comprises a release sheet material which can be peeled off from the adhesive portion, and an outer sheet material outside the release sheet. Packaging structure for goods.

(Function and Effect) The coating material may be an integral one or a single layer sheet as described above, but by making the release sheet and the outer sheet separate, the peculiar materials necessary for them can be used. .

<Invention of Claim 5> The coating material is the first
The adhesive section and the second adhesive section are commonly covered, and each of the adhesive sections has a release sheet material that can be peeled off and an outer sheet material outside the release sheet, and the outer sheet material is the release sheet. 3. The packaging structure for absorbent articles according to claim 2, wherein at least a part thereof is bonded with a bonding force larger than the bonding force between the adhesive portion and the release sheet material.

(Function and Effect) Since the overhanging portion is folded to the back side, the first adhesive portion and the second adhesive portion are
It can be commonly coated with a coating material. In a conventional napkin having a wing flap, it is very unique in the comparison that the release sheet for the adhesive portion of the wing flap and the release sheet for the adhesive portion on the back surface of the main body must be separated from each other. is there. Being able to coat the first adhesive portion and the second adhesive portion with a common coating material not only simplifies the manufacturing process, but also brings a great advantage that the user can perform peeling at once. Further, as a covering material, a release sheet material that is releasable with respect to each adhesive portion and an outer side sheet material on the outside of this release sheet are separately provided, and the outer sheet material is at least a part of the release sheet, By bonding with a bonding force that is greater than the bonding force between the adhesive section and the release sheet material, the outer sheet can be peeled off, so that the release sheet can also be removed from each adhesive section. The absorbent article with all the adhesive parts exposed can be taken out, which is extremely convenient for the user.

<Invention of Claim 6> The coating material is the first
A second release sheet that is a separate body from the first release sheet material that covers the adhesive portion and is removable therefrom, and the first release sheet material that covers the adhesive portion and is removable therefrom. A sheet material and an outer sheet material disposed outside the first release sheet and the second release sheet, the outer sheet material being at least a part of the release sheets and the adhesive portions. 3. The packaging structure for absorbent articles according to claim 2, wherein the absorbent article and the release sheet are joined with a joining force that is greater than the joining force.

(Function and Effect) The release sheet can be a separate body corresponding to each adhesive portion. Of course, the second
When the adhesive part is separated into multiple parts, the second
It is also possible to separate the release sheet for each of the plurality of second adhesive portions. Similarly, it is possible to separate the first release sheet for each first adhesive portion.

<Invention of Claim 7> The absorbent article is folded in the front-rear direction together with the outer sheet material, and one end portion of the outer sheet and the other portion of the outer sheet are temporarily fixed together in the folded state. The packaging structure for absorbent articles according to any one of claims 1 to 6.

(Operation and effect) It becomes a clean product in an individually packaged state.

[0024]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described in more detail with reference to the drawings. In the present invention,
The structure of the absorbent article itself is not limited as long as it has protruding portions that laterally project from the main body portion (the portion that mainly absorbs body fluid and is locally applied). The packaging structure of the present invention will be described with an example of the structure of a sexual article.

[First Embodiment] FIG. 1 is a partially broken development view of a sanitary napkin 1A according to a first embodiment of the present invention, FIG. 2 is a rear view thereof, and an arrow III-III of FIG. Perspective view, FIG. 4 is FIG.
FIG. 4 is a view taken along the line IV-IV of FIG.

The sanitary napkin 1A comprises a liquid-impervious backsheet 2 made of a polyethylene sheet, a polypropylene sheet, etc., a liquid-permeable topsheet 3 that allows permeation of blood, stains and the like to quickly pass through, and both of these sheets 2 , 3 interposed between the absorbent body 4 and the absorbent body 4 made of cotton pulp or synthetic pulp, the crepe paper 5 surrounding the absorbent body 4 for maintaining the shape of the absorbent body 4 and improving the diffusivity, and both side surfaces And side nonwoven fabrics 6 formed along the longitudinal direction, respectively, around the absorbent body 4,
At the upper and lower edges, the outer edges of the liquid-impermeable backsheet 2 and the liquid-permeable topsheet 3 are joined by an adhesive such as hot melt or an adhesive means such as heat seal. The liquid-impervious backsheet 2 extending laterally with respect to the absorber 4 and the side nonwoven fabric 6 are joined by an adhesive such as hot melt or an adhesive means such as heat seal.

The structure and materials of the sanitary napkin 1A will be described in more detail below. The liquid-impervious backsheet 2 is a sheet material having at least water-blocking property such as olefin resin sheet such as polyethylene or polypropylene. In addition to this, a laminated non-woven fabric in which a non-woven fabric is laminated on a polyethylene sheet or the like, or a non-woven fabric sheet (in this case, a waterproof film and a non-woven fabric) with a waterproof film interposed to ensure substantially liquid impermeability And constitutes a liquid-impervious backing sheet) and the like. In recent years, from the viewpoint of preventing stuffiness, a material having moisture permeability tends to be used. As the water-impermeable / moisture-permeable sheet material, after the inorganic filler is melt-kneaded in an olefin resin such as polyethylene or polypropylene to form a sheet,
A microporous sheet obtained by stretching in a uniaxial or biaxial direction.

Next, as the liquid-permeable surface sheet 3, a perforated or non-perforated nonwoven fabric, a porous plastic sheet or the like is preferably used. As the material fibers constituting the non-woven fabric, for example, synthetic fibers such as olefins such as polyethylene or polypropylene, polyesters, polyamides, etc., regenerated fibers such as rayon or cupra, natural fibers such as cotton, etc. can be used. A nonwoven fabric obtained by an appropriate processing method such as a lace 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 excellent in flexibility and drapability, and the thermal bond method is excellent in bulkiness and softness. In the illustrated example, the liquid-permeable surface sheet 3 has a two-layer structure including a porous plastic sheet 3A on the front surface side and a hydrophilic non-woven fabric 3B on the back surface side.

When the above-mentioned two-layered sheet is used as the liquid permeable surface sheet 3, menstrual blood, scents and the like (hereinafter collectively referred to as body fluid) are quickly absorbed. , The surface that comes into contact with the skin has excellent dry touch. In this case, like this example,
If the crepe paper 5 surrounding the absorbent body 4 is provided and, as a result, the crepe paper 5 is interposed between the liquid-permeable surface sheet 3 and the absorbent body 4, the crepe paper 5 having excellent absorbency can be used for the body fluid. And to prevent the menstrual blood from returning.

On the other hand, on the upper surface of the liquid-permeable surface sheet 3, side embosses 7, 7 are formed substantially along the longitudinal direction on both side portions straddling the blood discharge corresponding site, and arcuate shapes are formed on the front and rear portions, respectively. Embosses 8 and 8 are formed.

The absorber 4 interposed between the liquid-impermeable backsheet 2 and the liquid-permeable topsheet 3 is made of, for example, fluff pulp and water-absorbing polymer. The water-absorbent polymer is mixed in the pulp constituting the absorber as, for example, granular powder. Examples of the pulp include chemical pulp obtained from wood, cellulose fibers such as dissolving pulp, and rayon, and those comprising artificial cellulose fibers such as acetate, and softwood pulp having a longer fiber length than hardwood pulp has a function and It is preferably used in terms of price.

In the unfolded state of the sanitary napkin 1A, side nonwoven fabrics 6, 6 are provided on both sides of the front surface along the longitudinal direction and over substantially the entire length of the absorbent article. At the same time, a part of the side nonwoven fabrics 6 and 6 is laterally extended, and a part of the liquid impermeable backsheet 2 is laterally extended, and the side nonwoven fabrics are laterally extended. The wing-shaped overhanging portions W, W are formed by joining the portion and the liquid-impermeable backsheet portion with a hot melt adhesive or the like, and the wing-like overhanging portions W, W are provided on the surface of the liquid-permeable topsheet 3 side. The first adhesive portion 10,
10 are formed.

As the side non-woven fabric 6, a water-repellent treated non-woven fabric or a hydrophilic treated non-woven fabric can be used from the viewpoint of important functions. For example, if importance is attached to functions such as preventing the penetration of menstrual blood and vaginal discharge, or enhancing the feeling of touch, a water-repellent treatment coated with a silicone-based, paraffin-based, or alkylchromic chloride-based water repellent. If a non-woven fabric is used and the absorbability of menstrual blood and the like in the wing-shaped overhanging portions W, W is emphasized, polymerization is carried out by coexisting a compound having a hydrophilic group, for example, an oxidation product of polyethylene glycol, in the production process of synthetic fibers. The synthetic fiber is swollen or porous by treatment with a metal salt such as stannous chloride, partially dissolving the surface to make it porous and depositing metal hydroxide, and applying the capillary phenomenon. A hydrophilic non-woven fabric that has been made hydrophilic is used. For the purpose of the present invention, it is desirable to use a hydrophilic treated nonwoven fabric as the side nonwoven fabric 6.

The side nonwoven fabric 6 may be made of natural fiber, synthetic fiber, regenerated fiber or the like by a suitable processing method, but preferably the basis weight is suppressed and the breathability is reduced. It is better to use a non-woven fabric.

As shown in FIG. 3, the inner side of the side nonwoven fabric 6 has a predetermined width S ₁ inside the side edge of the absorbent body 4.
Are overlapped with each other, and the inner side is a few mm on the side edge
The width S ₂ does not adhere to the liquid-permeable surface sheet 3 and shows a certain degree of erection inwardly and obliquely upward. As a result, even when the surface of the liquid-permeable topsheet 3 has a high viscosity, the inner edge side edge portion (S ₂ portion) showing the above-mentioned standing upright serves as an obstacle for preventing menstrual blood and the like. As a result, side leakage is prevented, and menstrual blood and foreign matter absorbed by the absorbent body 4 by the side nonwoven fabric 6 are prevented from permeating to the outside than the side portions of the absorbent body 4 and are prevented from seeping out. It is supposed to do.

<Packaging Structure Example> Now, the packaging structure example according to the present invention will be described in detail. As shown in FIG. 2, the non-use side (back surface) of the liquid-impermeable backsheet 2 is shown in FIG. , A plurality of second adhesive portions 11A, 11B are formed by an appropriate application pattern for fixing to the shorts, and in an unused product state, for example, as shown in FIG. 5 to FIG. With the W folded on the back side, the first adhesive portion 10 and the second adhesive portion 11A,
11B as a component of the covering material 50 that covers 11B in common,
For example, the surface facing the back surface is covered with a release sheet material 51 such as a release paper or a plastic sheet treated with silicon.

The covering material 50 includes, in addition to the release sheet material 51,
The outer sheet material 52 on the outer side is included. Outer sheet material 52
Is made of a material such as a plastic sheet or preferably a non-woven fabric having a good feel to the touch, and the hot-melt adhesive agent is used in at least a part of the release sheet 51, in the embodiment, in the intermediate portion and in three regions before and after the longitudinal direction. It is substantially non-separable by the joint portion 53 such as.
The joining force by the joining portion 53 is larger than the joining force between the first adhesive portion 10 and the second adhesive portions 11A and 11B and the release sheet material 51.

Therefore, at the time of packaging, the sanitary napkin 1A is covered with the release sheet material 51 (see FIG. 6) while the wing-shaped overhanging portions W, W are folded to the back surface side (see FIG. 6), and the joint portion 53 is interposed. Then, the outside is covered with a large outer sheet material 52 having the outer shape of the sanitary napkin 1A (see FIG. 5). Further, as shown in FIG. 7, the sanitary napkin 1A is folded in the front-rear direction together with the outer sheet material 52, and is folded into, for example, three folds, and one end portion of the outer sheet 52, for example, the outer sheet 52 facing the front end portion. Other parts are temporarily fixed. Temporary fixing is, for example, a fastening tape 5 having a base fixed to one end of the outer sheet 52.
The adhesive layer 54a formed on the inner surface of the protruding portion 4 of FIG. 4 can be adhered to the outer surface of the rear side outer sheet 52 that is folded first. Further, the temporary fixing can be performed by heat welding the outer surface of the outer sheet 52 on the rear side and the inner surface of one end of the outer sheet 52.

Further, the side portions of the folded outer sheet 52 can be sealed to each other by a sealing means, for example, a heat seal portion 55.

In such a packaging structure, a user who purchases the product grasps the protruding portion of the fastening tape 54 of the individual bag and peels it off. At this time, the heat seal part 55 is peeled off. At the same time, the release sheet material 51 joined via the joining portion 53 is also peeled off, and the first adhesive portion 10 and the second adhesive portions 11A and 11B are exposed.

As shown in FIG. 8, the user applies the sanitary napkin 1A locally and adheres it to the undergarment S via the first adhesive portion 10, and the wing-shaped overhanging portion W protruding laterally, As for W, this is taken out from the underwear, and the wing-shaped overhanging portions W, W are adhered to the skin at the base of the crotch and thigh. As a result, the sanitary napkin 1A can be surely prevented from being displaced by the first adhesive portion 10 formed on the non-use surface side and the wing-shaped overhanging portions W, W directly adhered to the skin. Even if a large amount of menstrual blood or the like is discharged to the sanitary napkin 1A and side leakage occurs and may reach the wing-shaped overhanging parts W, W, the menstrual blood, etc., may contact the wing-shaped overhanging parts W, W and the skin. There is no need to worry about soiling the underwear and clothing as it travels between them and does not come into contact with underwear and clothing.

Here, another example of the packaging form will be described.
In the above example, the covering material 50 is separated from the release sheet material 51 and the outer sheet material 52, but as shown in FIGS. 9 and 16, a single (single layer) sheet material 50A may be used. That is, as the single sheet material 50A, siliconized release paper, poly-laminated nonwoven fabric, plastic sheet, or the like is used, and the release surface is provided with the first adhesive portion 10 and the second adhesive portion.
The adhesive parts 11A and 11B can be covered with a mask.

On the other hand, the first adhesive portion 10 and the second adhesive portion 11
Although A and 11B are covered with a common sheet, for example, as shown in FIG. 15, the first release sheet 51 is separately provided.
It can be covered with A and the second release sheet 51B.

On the other hand, although not shown, the first release sheet 51A and the second release sheet 51B are joined together, and on the other hand, desirably, the outer release sheet and the outer sheet 52 are joined together, and the other It is possible to adopt a mode in which it is not joined to the release sheet. Also in this case, when the outer sheet 52 is peeled off, one release sheet and the other release sheet can be peeled together.

Further, it is not necessary to fold, and when folding, three-fold as well as two-fold or more folds can be performed.

As the pressure-sensitive adhesive for forming the pressure-sensitive adhesive layers 11A and 11B, for example, one having a styrene polymer, a tackifier or a plasticizer as a main component is preferably used. Examples of the styrene-based polymer include styrene-
Examples of the ethylene-butylene-styrene block copolymer, styrene-butylene-styrene block copolymer, styrene-isobutylene-styrene copolymer,
Only one of these may be used, or a blend of two or more may be used. Of these, a styrene-ethylene-butylene-styrene block copolymer is preferable because it has good thermal stability. As the tackifier and the plasticizer, those solid at room temperature can be preferably used. Examples of the tackifier include C5 petroleum resin, C9 petroleum resin, dicyclopentadiene petroleum resin and rosin petroleum resin. , Polyterpene resin, terpene phenolic resin, and the like, and in the plasticizer, for example,
In addition to monomer plasticizers such as triflesyl phosphate, dibutyl phthalate and dioctyl phthalate, polymer plasticizers such as vinyl polymers and polyesters can be mentioned.

As the pressure-sensitive adhesive forming the pressure-sensitive adhesive portion 10, an appropriate material that does not irritate the skin or has little skin irritation can be selected.

(Form Examples of Other Absorbent Articles)

As described above, in the present invention, the absorbent article is not limited to the form as long as the absorbent article has the protruding portions on both sides, which are projected laterally.
Some other examples are given below. Also in these examples, the packaging structure described above can be applied as it is.

By the way, in the present invention, since the wing-shaped overhanging portions W, W are directly adhered to the skin, there is a fear of stuffiness caused by sweat or the like and discomfort caused by adhesion. Therefore, as shown in FIG. 10, the side nonwoven fabrics 6 in the wing-shaped overhanging portions W and W portions are corrugated to reduce stuffiness due to a large number of corrugated spaces and to reduce the adhesive area and the corrugation. By allowing a slight displacement by the portion (standing portion), discomfort to the skin due to adhesion can be eliminated.

Further, menstrual blood or the like has a wing-shaped protrusion W,
It is desirable to surely absorb and hold the menstrual blood when flowing between W and the skin. Therefore, as shown in FIG. 11, in the wing-shaped overhanging portions W, W, a thin absorber 12 such as an air-laid is interposed between the liquid-impermeable backsheet 2 and the side nonwoven fabric 6. Good. In this case, the thickness of the absorber is preferably 1 mm or less. Further, crepe paper or the like may be used as the absorber 12.

Further, the side nonwoven fabric is a stretchable side nonwoven fabric, specifically, a nonwoven fabric composed of long fibers made of an elastic resin material such as polyurethane which is easily reversibly plastically deformed, or is stretched. Although the fiber diameter of the fiber itself does not change, a zigzag or spiral crimp is formed, and when the crimp is stretched, a non-woven fabric or the like is used that exhibits stretchability. By using a stretchable plastic film as the liquid back sheet 2, the wing-shaped overhanging portions W, W are given elasticity so that the wing-like overhanging portions W, W follow the movement of the body, and the wing-like overhanging portions W, W are also formed. The discomfort caused by directly adhering to the skin may be eliminated.

[Second embodiment]

FIG. 12 is a partially exploded development view of the sanitary napkin 1B according to the second embodiment of the present invention.

The basic structure is similar to that of the first embodiment, but in the sanitary napkin 1B of the second embodiment, a stretchable side nonwoven fabric is used as the side nonwoven fabric 6, while the impermeable fabric is used. The liquid back sheet 2 has sheet ends 2a, 2a at positions slightly beyond the side edges of the absorbent body 4 on both sides of the absorbent article, and a part of the side nonwoven fabric 6 is formed on the liquid impermeable back sheet 2. By extending laterally beyond the sheet end 2a, the wing-shaped overhanging portions W, W are formed, and the adhesive layers 10, 10 are formed on the surface of the wing-like overhanging portions W, W on the liquid permeable surface sheet 3 side. Are formed. Note that the non-woven fabric portion of the wing-shaped overhanging portion W may be corrugated.

By constructing the wing-shaped overhanging portions W, W from the stretchable nonwoven fabric, it becomes possible to easily follow the movement of the body, and the wing-like overhanging portions W, W are directly attached to the skin to give a feeling of strangeness. Will be largely eliminated, and high breathability will be secured.

In the sanitary napkin 1B, when the wing-shaped overhanging portion W is pulled out of the shorts, the tensile force is transmitted from the wing-like overhanging portion W to the side nonwoven fabric 6 and the side nonwoven fabric 6 is not contacted. Separation from the liquid-permeable backsheet 2 may occur. In order to prevent this, the liquid impermeable backsheet 2 and the side nonwoven fabric 6 are fixed to each other at a position outside the side edge of the absorber by a linear heat seal 9 along the longitudinal direction. This linear heat seal 9 is approximately 1 / the length of the napkin product.
It is desirable to form over a length range of 5 or more. Since other structures are the same as those of the first embodiment,
The same reference numerals are given and the description is omitted.

The example of the sanitary napkin having the wing-shaped overhangs W and W on both sides has been described above in detail. The present invention, as shown in FIG. 14, shows that the buttocks are located on the rear side. The same can be applied to the night sanitary napkin 1C having the side protrusions W _B and W _B. That is, wing-shaped projecting portion W, to form a pressure-sensitive adhesive layer 10, 10 on the surface of the liquid-permeable surface sheet 3 side of the W, the surface of the liquid-permeable surface sheet 3 side of the buttocks side projecting portion W _B the adhesive layer 13 is formed on the mounting said wing-shaped projecting portion W, as well as adhesion to the skin of the root portion of the crotch thigh W, adhering to the buttocks side projecting portion W _B buttocks skin To do so.

[0059]

As described above in detail, according to the present invention, in an absorbent article having side projections on both sides, the absorbent article can be prevented from being displaced, and the side leakage prevention effect is high. Even if side leakage such as menstrual blood occurs, it is possible to obtain a suitable packaging structure in an absorbent article that has advantages such as not soiling underwear and clothes. Other effects are as described in the column of effects.

[Brief description of drawings]

FIG. 1 is a sanitary napkin 1A according to a first embodiment of the present invention.
FIG.

FIG. 2 is a rear view of the same.

FIG. 3 is a view taken along the line III-III in FIG.

FIG. 4 is a view taken along the line IV-IV of FIG.

FIG. 5 is a view from the use surface side in a state where the packaging is unfolded and unfolded.

FIG. 6 is a view from the back surface side in the state where the packaging is unfolded and unfolded and the outer sheet material is omitted.

FIG. 7 is a schematic side view of a packaged state.

FIG. 8 is a schematic view showing a wearing state diagram of the sanitary napkin 1A.

FIG. 9 is a schematic side view of a state in another packaging form.

FIG. 10 is an enlarged cross-sectional view of a main part showing another formation mode view of the wing-shaped overhanging portion W.

FIG. 11 is an enlarged cross-sectional view of an essential part showing another formation mode view of the wing-shaped overhanging portion W.

FIG. 12 is a sanitary napkin 1 according to a second embodiment of the present invention.
It is a partial fracture development view of B.

13 is a view taken along line XII-XII in FIG.

FIG. 14 is a development view showing another example of the sanitary napkin according to the present invention.

FIG. 15 is a view from the back side illustrated in another state in which the packaging is unfolded and unfolded and the outer sheet material is omitted according to another example.

FIG. 16 is a perspective view of another packaging form example.

[Explanation of symbols]

1A to 1C ... Sanitary napkin, 2 ... Liquid impermeable back sheet, 3 ... Liquid permeable top sheet, 3A ... Porous plastic sheet, 3B ... Hydrophilic non-woven fabric, 4 ... Absorber, 5 ... Crepe paper, 6 ... side nonwoven, 10, 11, 13 ... adhesive layer, W ... wing-shaped projecting portion, W _B ... buttocks side projecting portion

Continued front page    F term (reference) 3E067 AA12 AB71 BA31A BB14A                       BB25A CA24 EA06 GD08                 4C003 DA06 EA03 EA04 GA08 HA05                 4C098 AA09 CC01 CE08 CE14 DD10                       DD12 DD24 DD25 DD26 DD28                       DD30

Claims (7)

[Claims] 1. A packaging structure for an absorbent article, which has bulged portions that project laterally on both sides, wherein the bulged portion has an adhesive portion on the side of the use surface facing the skin when the bulged portion is in a developed state. The packaging structure for an absorbent article, wherein the overhanging portion is folded to the back surface side, and the entire absorbent article is wrapped with a covering material. 2. A packaging structure for an absorbent article, which has bulging portions that project laterally on both sides, wherein the bulging portion has a first surface on the side of the use surface facing the skin when the bulging portion is in a deployed state. An adhesive part is provided, and a second adhesive part is provided on the back surface side excluding the projecting part, the projecting part is folded to the back surface side, and the entire absorbent article is wrapped with a covering material. Absorbent article packaging structure. 3. The coating material according to claim 1, wherein the surface facing the adhesive portion is a single layer sheet having releasability, and the single layer sheet wraps the entire absorbent article. Packaging structure for absorbent articles. 4. The packaging structure for absorbent articles according to claim 1 or 2, wherein the covering material comprises a release sheet material that is removable from the adhesive portion and an outer sheet material outside the release sheet. 5. The coating material covers the first adhesive portion and the second adhesive portion in common, and comprises a release sheet material that is releasable from each adhesive portion and an outer sheet material outside the release sheet. Have,
The packaging structure for absorbent articles according to claim 2, wherein the outer sheet material is joined to the release sheet at least in part with a joining force greater than the joining force between the adhesive portion and the release sheet material. 6. A first release sheet material which covers a first adhesive portion and is releasable therefrom, and a first release sheet which covers a second adhesive portion and is releasable therefrom. A second release sheet material separate from the sheet material, and an outer sheet material arranged outside the first release sheet and the second release sheet, wherein the outer sheet material is each release sheet. 3. The packaging structure for absorbent articles according to claim 2, wherein at least a part thereof is bonded with a bonding force larger than the bonding force between the adhesive parts and the release sheet materials. 7. The absorbent article is folded together with the covering material in the front-rear direction, and one end portion of the covering material and the other portion of the outer sheet are temporarily fixed together in the folded state. The packaging structure for absorbent articles according to item 1.