JP2008054958A - Separate packaging structure of absorbent article - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide the separate packaging structure of an absorbent article having flaps, where a one-step opening system is realized for opening the package and resistance is small enough to easily open the package when exfoliating the peel-off materials. <P>SOLUTION: In the separate packaged conditions, wing-like flaps W, W are folded up on the side of a liquid-permeable surface sheet 3. A peel-off material 20 is provided to cover adhesive layers 9, 9 for fixing the main body... and adhesive layers 10, 10 for fixing the wings, and the whole article is packaged with a separate packaging sheet. The peel-off material 20 provided is made of one or a plurality of components and covers the adhesive layers 9, 9 for fixing the main body... and the adhesive layers 10, 10 for fixing the wings. A peel-off material 21 covering the adhesive layer 9, 9... for fixing the main body and the peel-off material 23 covering the adhesive layers 10, 10 for fixing the wings are continuous creeping around the one side end of the absorbent article 1. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an individual packaging structure of an absorbent article provided with a wing-shaped flap that is used so as to be wound around a crotch portion of an undergarment when being fixed to the undergarment.

  Conventionally, as an absorbent article N such as a sanitary napkin, a panty liner, a cage sheet, an incontinence pad, and the like, as shown in FIGS. 2. Description of the Related Art There is known one in which an absorbent body 52 made of cotton-like pulp or the like is interposed between a back sheet 50 and a liquid-permeable surface sheet 51 made of a nonwoven fabric or a permeable plastic sheet.

  As this type of absorbent article N, in order to prevent misalignment in the mounted state, for example, one or a plurality of adhesive layers 53, 53 are formed on the non-skin contact surface side (outer surface), and the napkin body The wing-shaped flaps W, W extending outward are integrally formed on both sides in the longitudinal direction of the wing, and the wing-shaped flaps W, W are adhered to a surface (outer surface) on the liquid-impervious back sheet 50 side. There is one in which the agent layers 54 are provided.

  When the absorbent article N is fixed to the undergarment 30, as shown in FIG. 20, the absorbent article N is locally applied, and the wing-shaped flaps W, W protruding laterally are taken out from the underwear, The wing-shaped flaps W, W are folded at the folding lines RL, RL, and are adhered to the outer surface of the crotch portion of the underwear 30 while winding the crotch portion of the underwear.

On the other hand, when the absorbent article N is individually packaged, as shown in FIG. 21, the wing-shaped flaps W, W are folded to the use surface side (hereinafter sometimes referred to as belly fold for convenience). In order to facilitate the peeling of the release paper, a first embodiment in which an integral release paper that bridges the flaps W and W is disposed and enclosed in an individual bag (for example, see Patent Document 1). In the state where the wing-shaped flaps W, W are folded in the stomach, one end portion is turned to the opposite end portion and the lower surface is turned inside, and the outside of the folded portion is attached to the adhesive layer of one wing W so as to be peelable. And the 2nd mode (for example, refer to patent documents 2) enclosed with an individual bag in the state where the opposite end was pasted up to the adhesion layer of the other wing W, and a liquid-permeable surface sheet, An absorber was interposed between the liquid-impermeable back sheet In an absorbent article formed with wing-shaped flaps that are fixed so that the crotch part of the underwear is wound around the both sides of the body part when worn, the body misalignment of the body part on the surface of the liquid-impervious back sheet side A stop adhesive layer was formed, and a wings-stop adhesive layer was formed on the liquid-impervious back sheet side of the wing-shaped flap, and was formed on the wing-shaped flap in the individually packaged product state. A wing release material that covers the adhesive layer for preventing misalignment is provided, the wing-shaped flap is folded together with the wing release material on the liquid-permeable surface sheet side, and the wing release material is folded on the wing-shaped flap. It extends beyond the position to the surface on the liquid-impervious back sheet side, and the wing release material is directly connected to the individual packaging material on the surface on the liquid-impervious back sheet side. Or in the third embodiment are fixed via the body release material covering the main body displacement preventing pressure-sensitive adhesive layer (for example, see Patent Document 3), etc. are present.
Japanese National Patent Publication No. 5-506799 JP-A-8-117284 JP 2006-55656 A

  However, each of the individual forms according to the first aspect and the second aspect separately includes a release paper for the adhesive layer of the wing-shaped flaps W and W and a release paper for the adhesive layer for preventing the main body from being displaced on the back side of the main body. Therefore, it is necessary to peel off and discard these at least two pieces of release paper, and a one-step opening method (a method for automatically removing the release paper between one opening operation) has been realized. Absent. Further, when opening the individual packaging bag, peeling off the release paper, and attaching the absorbent article N to the underwear, the wing-shaped flaps W and W have folding folds on the back side. , Because it was necessary to expand W, it took time and effort.

  In the case of the individual packaging form according to the third aspect, when the napkin is taken out from the individual packaging bag and the individual packaging sheet is peeled off, the wing-shaped flaps W and W are pulled to the back sheet side by the wing release material and folded in the stomach. The wing-shaped flaps W and W are automatically deployed. Further, although the wing-shaped flaps W and W are unfolded, the wing-shaped flaps W and W are adhered to the anti-displacement adhesive layer formed on the back surface of the main body because the wing-shaped flaps W and W have some creases on the use surface side. Will also disappear. When the individual sheet is peeled off, the release material for the main body is peeled off together with the release material for the wing, so that a complete one-step opening method can be realized, but both sides of the release material for the wing are wing-shaped. Since it is a structure folded to the liquid-permeable surface sheet side together with the flaps W, W, the resistance when peeling the wing release material is large, and the release material may be broken. In addition, there are problems such as a large noise generated during peeling.

  Accordingly, an object of the present invention is to provide an absorbent article having a wing-shaped flap, which realizes a one-step opening method at the time of opening, and has a low resistance when the release material is peeled off and can be easily opened. To provide a structure.

In order to solve the above-mentioned problem, as the present invention according to claim 1, underwear is attached to each side of the main body portion where the absorbent body is interposed between the liquid-permeable top sheet and the liquid-impervious back sheet. A wing-shaped flap that is fixed so as to entrain the crotch portion is formed, a main body slip-preventing adhesive layer is formed on the surface of the main body portion on the liquid-impervious back sheet side, and the wing-shaped flap It is an individual packaging structure of an absorbent article in which a wings-stop adhesive layer is formed on the surface of the liquid-impermeable back sheet side,
The absorbent article is individually packaged, the wing-shaped flap is folded to the liquid-permeable surface sheet side, and a release material is provided to cover the main body slip-off adhesive layer and the wing slip-stop adhesive layer. Packaged by wrapping sheet,
The release material is made of one or a plurality of materials covering the main body anti-slip adhesive layer and the wing anti-slip adhesive layer, and covers the release material covering the main body anti-slip adhesive layer and the wing anti-slip adhesive layer. An individual packaging structure for an absorbent article is provided, wherein the release material is continuous around the one side edge of the absorbent article.

  In the first aspect of the present invention, the release material is made of one or a plurality of materials covering the main body anti-slip adhesive layer and the wing anti-slip adhesive layer, and the release material covers the main body anti-slip adhesive layer. The release material covering the wings-stopping adhesive layer has a continuous structure around the one side edge of the absorbent article.

  Therefore, since the release material covering the main body slip prevention adhesive layer and the release material covering the wing slip prevention adhesive layer are continuous, it is possible to realize a one-step opening method at the time of opening and the main body misalignment. Since the release material covering the fixing adhesive layer and the release material covering the wings prevention adhesive layer are continuous around the one side edge of the absorbent article, the resistance is small when peeling the release material. Thus, it can be opened easily and smoothly, and the amount of release material can be reduced as compared with the case of covering the longitudinal direction of the product.

  As this invention which concerns on Claim 2, the said peeling material consists of one material which covers the said main body slip prevention adhesive layer and a wings slip prevention adhesive layer, and the peeling material which covers the said main body slip prevention adhesive layer is the said. The individual packaging structure of an absorbent article according to claim 1, wherein the absorbent article is continuous around one side edge of the absorbent article and covers the wings-stopping adhesive layer.

  The second aspect of the present invention shows a specific example of the invention according to the first aspect of the present invention, and is a form example in the case where the release material is made of one material.

  According to a third aspect of the present invention, the release material is fixed to the first release material that covers the main body anti-adhesive adhesive layer and the release material for the main body, and surrounds one side edge of the absorbent article. The absorbent article according to claim 1 is provided in combination with a second release material covering the wings-stopping pressure-sensitive adhesive layer.

  The third aspect of the present invention shows a specific example of the invention according to the first aspect of the present invention, and is an embodiment in the case where the release material is composed of two materials.

  As this invention which concerns on Claim 4, while the said peeling material covers the said main body slip prevention adhesive layer, it wraps around the one side edge of the said absorbent article, it continues, and one wings slip prevention adhesive layer is attached. The individual packaging of the absorbent article according to claim 1, comprising a combination of a first release material that covers and a second release material that is fixed to the first release material and covers the other wings-stopping adhesive layer. A structure is provided.

  The fourth aspect of the present invention shows a specific example of the invention according to the first aspect of the present invention, and is an embodiment in the case where the release material is composed of two materials.

  As this invention which concerns on Claim 5, while the said peeling material covers the said 1st peeling material which covers the said wings slip prevention adhesive layer, the said main body slip prevention adhesive layer, and the one side edge of the said absorbent article The individual packaging structure of an absorbent article according to claim 1, comprising a combination of a second release material that wraps around and is connected to the wing release material.

  The present invention according to claim 5 shows a specific example of the invention according to claim 1, and is an embodiment in the case where the release material is composed of three materials.

  As this invention which concerns on Claim 6, the said peeling material adheres to the 1st peeling material which covers the said main body slip prevention adhesive layer, and this 1st peeling material, The one side edge of the said absorbent article is attached. A second release material that wraps around and covers one of the wings-stopping adhesive layers; and a third release material that is fixed to the second release material and covers the other wings-stopping adhesive layer; The individual packaging structure of the absorbent article according to claim 1, comprising the combination of the above.

  The present invention according to claim 6 shows a specific example of the invention according to claim 1, and is an embodiment in the case where the release material is composed of three materials.

  The invention according to claim 7 is characterized in that the release material includes a first release material that covers the main body slip-off adhesive layer, a second release material that covers the wings-stop adhesive layer, and the first release material. The individual packaging structure of an absorbent article according to claim 1, comprising a combination of a third release material and a third release material connecting the second release material and the second release material around one side edge of the absorbent article. Is done.

  The seventh aspect of the present invention shows a specific example of the invention according to the first aspect of the present invention, and is an embodiment in the case where the release material is composed of three materials.

  As the invention according to claim 8, the release material that wraps around the one side edge of the absorbent article is a flexible material selected from the group consisting of a film, a nonwoven fabric, a laminated nonwoven fabric, and a stretchable elastic sheet member The individual packaging structure of the absorbent article according to any one of claims 1 to 7 is provided.

  In the invention described in claim 8, the resistance at the time of peeling can be further reduced by using a highly flexible material as the peeling material that continues around the one side edge of the absorbent article. It becomes possible.

  As an invention according to claim 9, in the wing-shaped flap located on the side opposite to the side to which the release material is connected around the one side edge of the absorbent article, the release material covering the wing-shaped flap is: The individual packaging structure of an absorbent article according to any one of claims 1 to 8, wherein the absorbent article is folded in the vicinity of the other side edge of the absorbent article, and the folded surface is detachably attached to the wings-stop adhesive layer. Provided.

  In the invention according to claim 9, in the wing-shaped flap (referred to as the other-side wing-shaped flap) located on the side opposite to the side to which the release material is connected around the one side edge of the absorbent article, The release material that covers the wing-shaped flap is folded in the vicinity of the other side edge of the absorbent article, and the folded surface is detachably attached to the wings-stopping adhesive layer. When the peeling material covering the side wing-shaped flap is peeled off by the tensile force from the one side wing-shaped flap, the peeling material peels away from the folded state, so that it can be easily peeled with little peeling resistance.

  As described above in detail, according to the present invention, in an absorbent article having a wing-shaped flap, a one-step unsealing method is realized at the time of unsealing, and resistance can be easily unsealed when the release material is peeled off.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a partially broken development view of a sanitary napkin 1 according to the present invention, FIG. 2 is a rear view thereof, and is a view taken along the line III-III of FIG.

  The sanitary napkin 1 includes a liquid-impervious back sheet 2 made of a polyethylene sheet, a polypropylene sheet, etc., a liquid-permeable front sheet 3 that allows permeation of menstrual blood, cages, and the like, and a space between the two sheets 2 and 3. An absorbent body 4 made of cotton-like pulp or synthetic pulp intervening in the sheet, crepe paper 5 surrounding the absorbent body 4 for maintaining the shape and improving the diffusibility of the absorbent body 4, and longitudinally on both sides of the surface. It is comprised from the side nonwoven fabrics 6 and 6 formed along the direction. Around the absorber 4, at the upper and lower edge portions, the outer edge portions of the liquid-impervious back sheet 2 and the liquid-permeable surface sheet 3 are joined by an adhesive such as hot melt or an adhesive means such as heat seal. In addition, the liquid-impervious backsheet 2 and the side nonwoven fabric 6 that extend laterally from the absorbent body 4 at both side edges thereof are joined by an adhesive such as hot melt or an adhesive means such as heat seal. Has been.

Hereinafter, the structure of the sanitary napkin 1 will be described in detail.
As the liquid-impermeable back sheet 2, a sheet material having at least water shielding properties such as an olefin resin sheet such as polyethylene or polypropylene is used. In addition, a laminated nonwoven fabric obtained by laminating a nonwoven fabric on a polyethylene sheet or the like, or A nonwoven fabric sheet (in this case, the waterproof film and the nonwoven fabric constitute a liquid-impervious back sheet) can be used after substantially impervious to liquid imperviousness by interposing a waterproof film. In recent years, from the viewpoint of preventing stuffiness, those having moisture permeability tend to be used. This water-impervious and moisture-permeable sheet material is a microporous sheet obtained by melting and kneading an inorganic filler in an olefin resin such as polyethylene or polypropylene to form a sheet, and then stretching in a uniaxial or biaxial direction. It is.

  Next, as the liquid-permeable surface sheet 3, a porous or non-porous nonwoven fabric or a porous plastic sheet is preferably used. Examples of the material fibers constituting the nonwoven fabric include synthetic fibers such as polyethylene or polypropylene, synthetic fibers such as polyester and polyamide, recycled fibers such as rayon and cupra, and natural fibers such as cotton. 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. Of these processing methods, the spunlace method is excellent in terms of flexibility and the spunbond method is excellent in drapeability, and the thermal bond method and air-through method are excellent in terms of being bulky and soft. On the upper surface of the liquid-permeable surface sheet 3, side embosses 7 and 7 are formed along the longitudinal direction on both sides of the blood drainage corresponding site, and arc-shaped embosses 8 and 8 are respectively formed on the front and rear portions. Is formed.

  The absorbent body 4 interposed between the liquid-impervious back sheet 2 and the liquid-permeable top sheet 3 is made of, for example, fluffy pulp and a water-absorbing polymer. The water-absorbing polymer is mixed in the pulp constituting the absorber, for example, as granular powder. Examples of the pulp include chemical fibers obtained from wood, cellulose fibers such as dissolving pulp, and artificial cellulose fibers such as rayon and acetate. It is preferably used in terms of price. When the crepe paper 5 surrounding the absorbent body 4 is provided as in this example, the crepe paper 5 is interposed between the liquid-permeable surface sheet 3 and the absorbent body 4 as a result. The crepe paper 5 which is excellent in diffusing body fluids quickly prevents reversal of menstrual blood and the like.

  On the other hand, side nonwoven fabrics 6 and 6 are provided on both sides of the sanitary napkin 1 along the longitudinal direction and almost the entire length of the napkin 1, respectively. Wing-like flaps W, W are formed by a part of the liquid-impervious back sheet 2 that extends sideways and also extends sideways.

  As the side nonwoven fabric 6, a water-repellent treated nonwoven fabric or a hydrophilic treated nonwoven fabric can be used from the viewpoint of important functions. For example, if importance is placed on functions such as preventing permeation of menstrual blood or vaginal discharge, or enhancing the touch feeling, water repellent treatment coated with silicon, paraffin or alkylchromic chloride water repellent It is desirable to use a nonwoven fabric. Further, if importance is attached to the absorption of menstrual blood and the like in the wing-shaped flaps W, W, a method of polymerizing a compound having a hydrophilic group, for example, an oxidation product of polyethylene glycol, in the process of producing a synthetic fiber, , By treating with a metal salt such as stannic chloride, partially dissolving the surface to make it porous, and depositing metal hydroxides to swell or make the synthetic fiber porous, applying capillary action to make it hydrophilic It is desirable to use a hydrophilic treated non-woven fabric provided with.

  As shown in FIG. 2, the non-skin contact surface of the main body part in which the absorbent body 4 is interposed between the liquid-permeable top sheet 3 and the liquid-impervious back sheet 2 is for fixing to the underwear. A plurality of main body misalignment-adhering adhesive layers 9, 9,... In the illustrated example are formed by an appropriate coating pattern, and these main body misalignment-adhering adhesive layers 9, 9,. It is appropriately covered with a release material 20. In addition, the wings-stopping adhesive layers 10, 10 are formed on the surface of the wing-shaped flaps W, W on the liquid-impermeable back sheet 2 side. It is appropriately covered with a release material 20 described in detail later.

  As the pressure-sensitive adhesive that forms the anti-displacement pressure-sensitive adhesive layers 9 and 10, for example, a styrenic polymer, a tackifier, or a plasticizer whose main component is preferably used. Examples of the styrenic polymer include styrene-ethylene-butylene-styrene block copolymers, styrene-butylene-styrene block copolymers, and styrene-isobutylene-styrene copolymers. It may be used or two or more polymer blends. Among these, a styrene-ethylene-butylene-styrene block copolymer is preferable in terms of good thermal stability. As the tackifier and plasticizer, those that are solid at room temperature can be preferably used. Examples of the tackifier include C5 petroleum resins, C9 petroleum resins, dicyclopentadiene petroleum resins, and rosin petroleum resins. Polyterpene resin, terpene phenol resin, etc., and examples of the plasticizer include monomer plasticizers such as trifresil phosphate, dibutyl phthalate, dioctyl phthalate, and polymer plasticizers such as vinyl polymers and polyesters. It is done.

  In order to individually package the sanitary napkin 1 described above, as shown in FIGS. 1 to 5, the wing-shaped flaps W and W are folded to the liquid-permeable surface sheet 3 side, and as the release material 20, The main body misalignment adhesive layer 9, 9 ... and the wing misalignment adhesive layer 10, 10 are made of one or a plurality of materials covering the main body misalignment adhesive layer 9, 9 ... and the wing misalignment. A material in which the release material covering the pressure-sensitive adhesive layers 10 and 10 is continuous around the one side edge of the sanitary napkin 1 is used.

  Specifically, as shown in FIG. 5, the release material 20 includes a main body release material 21 (first release material) that covers the main body displacement prevention adhesive layers 9, 9, and the main body release material 21 ( A second release material 22 that is fixed to the first release material) and is continuous around the one side edge of the napkin 1 and covers one wings-stopping adhesive layer 10, and the second release material. And a third release material 23 which is fixed to 22 and covers the other wings-stopping adhesive layer 10. More specifically, the release material 20 is such that the release material 21 for the main body (first release material) is detachably attached to the main body displacement preventing adhesive layer 9, and the second release material 22 is While being fixed to the outer surface of the release material 21 (first release material) for the main body, it goes around the one side edge of the sanitary napkin 1 and continues to the surface side. Affixed so as to be peelable, one of the third release members 23 is fixed to the outer surface of the second release member 22 and the other is folded inward, and the outer surface of the folded portion is the other wing. Attached to the anti-displacement adhesive layer 10 so as to be peelable. In the drawing, a part of the release material 20 that is fixed so as not to be peeled is indicated by a cross.

  As the release material 20, for example, a release treatment liquid such as a silicone resin, a fluorine resin, or a tetrafluoroethylene resin is applied to or sprayed on the contact surface with respect to the anti-displacement adhesive layers 9 and 10. As described above, the third release material 23 is folded back and attached to the other wings-stopping pressure-sensitive adhesive layer 10 in a peelable manner, so that the release treatment surface can be used. It is possible to prevent the second release material 22 from being on the fixing surface side.

  In the release material 20, the release material (second release material 22 in the embodiment shown in FIG. 5) arranged so as to wrap around the one side edge of the sanitary napkin 1 is opened from the individual packaging state and is an individual packaging material. It is desirable to use a highly flexible film, non-woven fabric, laminated non-woven fabric, and elastic sheet member having elasticity so that the wing flap W can be unfolded smoothly when the film is peeled off. In particular, when using an elastic sheet member having stretchability, when the release material is peeled off, in addition to the acting force given by human, the acting force generates a contracting force on the sheet itself, which facilitates peeling. Will be able to do. It should be noted that the film itself or the nonwoven fabric itself may be used as long as it is easily peelable and does not substantially reduce the adhesive force without special release treatment. Moreover, the peeling process to a peeling material can be given to the whole surface or partially.

  Further, the main body release material 21 (first release material) and / or the third release material 23 is made of a material having rigidity higher than that of the second release material 22, for example, a material such as paper or laminated paper. It is preferable to use it. As a result, when the individual packaging material is peeled off from the individually packaged state, the second release material 22 wrapping around the one side edge of the napkin is flexibly deformed, and the main body release material 21 (first The release material) and the third release material 23 are peeled off without tearing, and smooth opening becomes possible.

  The third release material 23 is a napkin in a wing-shaped flap (referred to as the other-side wing-shaped flap) located on the opposite side to the side to which the release material is connected around the one side edge of the napkin 1. 3rd peeling which covers the said other side wing-like flap by having turned into the form where it turned up near the other side edge of 1 and the return side was stuck to the wings prevention adhesive layer. When the material 23 is peeled off by the tensile force from the one side wing-shaped flap side, the material 23 is peeled so as to be turned up from the folded state.

  Further, it is desirable that the film constituting the release material 20 is not transparent but colored, preferably white, so that the presence or absence of the release material can be easily visually recognized at the time of manufacture.

  As shown in FIG. 6, the individual packaging method has a width that is narrower than the developed width of the napkin 1 (distance between the tips of the wing-shaped flaps W and W), and is smaller than the folded state of the wing-shaped flaps W and W. Using a wide individual sheet 14 having a predetermined length, the napkin 1 is placed on the individual sheet 14 so that at least one short side 14b of the individual sheet 14 is positioned outside one of the front and rear ends of the napkin 1. And the individual sheet 14 and the release material 20 are firmly fixed with a hot melt adhesive or the like.

  Then, if the napkin rear end side is folded at the fold line α position, the napkin front end side is folded at the fold line β position, and as shown in FIG. 14a is sealed by a single or combination of appropriate sealing means such as embossing, heat fusion, and adhesive. Moreover, the front-rear direction edge 14b of the individual packaging sheet 14 is preferably sealed with a tab tape 15 after being joined with an adhesive.

  In the case of such an individual absorbent article, as shown in FIG. 8, when the napkin 1 is taken out from the individual packaging bag and the individual packaging sheet 14 is peeled off, the release materials 22, 23 covering the wingsling prevention adhesive layers 10, 10. However, since it continues around the one side edge of the sanitary napkin 1, the resistance is low when the release material is peeled off, and it can be opened easily and smoothly. Moreover, since the main body release material 21 (first release material) is also peeled off when the individual sheet 14 is peeled off, a complete one-step opening method can be realized.

[Other forms of individual structure of absorbent article]
Next, another example of the individual structure of the absorbent article will be described in detail.

(First Embodiment <Aspect with One Release Material>)
As shown in FIGS. 9 and 10, the release material 20 according to the first embodiment of the present invention is a single sheet that covers the main body displacement prevention adhesive layers 9, 9... And the wing displacement prevention adhesive layers 10, 10. The release material that covers the main body anti-slipping adhesive layers 9, 9... And the release material that covers the wings anti-slip adhesive layers 10, 10 wrap around one side edge of the sanitary napkin 1. It is continuous.

  In Example 1 shown in FIG. 9, the release material 20 is a single material 24 that is detachably attached to the main body anti-slip adhesive layers 9, 9... And the wing anti-slip adhesive layers 10 and 10. The release material part covering the main body anti-slipping adhesive layers 9, 9... And the release material part covering the wings anti-slip adhesive layers 10, 10 wrap around one side edge of the sanitary napkin 1. While being continuous, a folding part is provided so that the release material can be easily peeled off at the wings prevention adhesive layer 10 portion on the wraparound side.

  Also in Example 2 shown in FIG. 10, the release material 20 is a single material 24 that is detachably attached to the main body anti-slip adhesive layers 9, 9... And the wing anti-slip adhesive layers 10, 10. The release material part covering the main body anti-slipping adhesive layers 9, 9... And the release material part covering the wings anti-slip adhesive layers 10, 10 wrap around one side edge of the sanitary napkin 1. The release material that is continuous and covers the wings-preventing adhesive layers 10 and 10 is folded inward at the other side edge of the sanitary napkin 1, and the outer surface of the folded part is the wings-preventing adhesive. The layers 10 and 10 are pasted so as to be peelable.

(Second embodiment <a mode of two release materials>)
As the release material 20 according to the second embodiment of the present invention in which the release material is a combination of two sheets, for example, as shown in FIGS. 11 to 14, for the main body covering the main body displacement prevention adhesive layers 9, 9. A release material (first release material) and a second release material that is fixed to the release material for main body, wraps around one side edge of the absorbent article, and covers the wings-stopping adhesive layers 10 and 10. A mode (Example 1) corresponding to claim 3 comprising a release material, covering the main body misalignment-adhering adhesive layer, continuously surrounding one side edge of the absorbent article, and one wings misalignment The aspect corresponding to this 4 which consists of the 1st peeling material which covers a stop adhesive layer, and the 2nd release material which adheres to this 1st release material and covers the said other wings prevention adhesive layer. (Example 2) Furthermore, the peeling for wings which covers a wings prevention adhesive layer And a main body release material that covers the main body misalignment-preventing pressure-sensitive adhesive layer and is connected to the wing release material around the one side edge of the absorbent article. (Example 3) can be mentioned.

  In Example 1 shown in FIG. 11, the main body release material 21 (first release material) covering the main body displacement prevention adhesive layers 9, 9... And the main body release material 21 (first release material). It is fixed to the sanitary napkin 1 and is continuous with the one side edge of the sanitary napkin 1, and is composed of a combination with a second release material 25 that covers the wings-stopping adhesive layers 10 and 10. The second release material 25 is folded inward at the other side edge of the sanitary napkin 1, and the outer surface of the folded portion is attached so as to be peelable across the wings-stopping adhesive layers 10 and 10. Has been.

  In Examples 2 and 3 shown in FIGS. 12 to 13, first, the release material 20 shown in FIG. 12 covers the main body displacement prevention adhesive layers 9, 9, and one side edge of the sanitary napkin 1. And a first release material 26 covering one wings prevention adhesive layer 10, and a first release material 26 fixed to the first release material 26 and covering the other wings prevention adhesive layer 10. It consists of a combination with two release materials 27. In the second release material 27, the surface to be fixed with the first release material 26 is a folded surface, so that the release treatment surface does not become the side to be fixed to the first release material 26. Yes.

  The release material 20 shown in FIG. 13 covers the main body anti-slipping pressure-sensitive adhesive layers 9, 9... And continues around the one side edge of the sanitary napkin 1. Although the point which consists of the 1st peeling material 26 to cover and the 2nd peeling material 28 which adheres to this 1st peeling material 26 and covers the other said wings prevention adhesive layer 10, is the same, The second release material 28 has a release surface on the fixing surface side to the first release material 26 by making the other adhesive surface of the wings-stopping adhesive layer 10 a folded surface. It is supposed not to be.

  In Example 4 shown in FIG. 14, the release material 20 covers the first release material 29 that covers the wings prevention adhesive layer 10, 10 and the main body prevention adhesive layer 9, 9. The sanitary napkin 1 is composed of a combination with a second release material 30 that goes around one side edge of the sanitary napkin 1 and is connected to the first release material 29.

(Third embodiment <a mode of three stripping materials>)
As the release material 20 according to the third embodiment of the present invention, in which the release material is a combination of three sheets, as shown in FIGS. 15 to 17, in addition to the release material 20 shown in FIGS. The main body release material 21 (first release material) covering the adhesive layers 9, 9,..., The second release materials 32-34 covering the wing anti-adhesive layers 10, 10, and the main body release material. 21 (first release material) and the second release material 32 to 34 are combined with a third release material 31 that wraps around and connects one side edge of the sanitary napkin 1. is there. In addition, each aspect shown by FIGS. 15-17 has only a difference in the folding method of the 2nd peeling materials 32-34. In Example 1 shown in FIG. 15, the second release material 32 is folded in a C shape, and in Example 2 shown in FIG. 16, the second release material 33 is folded in an S shape. In Example 3 shown in FIG. 4, the second release material 34 is folded in a Z-shape.

[Other examples]
(1) In the above embodiment, the release material 20 is composed of the adhesive layer 9, 9... And the wing for preventing the main body from slipping, in connection with the napkin formed with the wing-shaped flap that is fixed so as to wind the crotch portion of the underwear. It is made of one or a plurality of materials that cover the anti-slipping adhesive layers 10, 10, and includes a release material that covers the main body anti-slip adhesive layers 9, 9. The napkin has a continuous configuration that wraps around one side edge of the napkin, but the night sanitary napkin has second wing-shaped flaps called hip-holds on both sides of the napkin on the rear side. There is something to have. The present invention can be similarly applied to the second wing-shaped flap.

It is a partial fracture development view of sanitary napkin 1 concerning the present invention. FIG. It is the III-III arrow directional view of FIG. It is a top view which shows the folding procedure of a wing-shaped flap. It is the cross-sectional view (VV arrow line view of FIG. 4). It is a perspective view which shows the individual packaging procedure. It is a perspective view which shows an individual packaging state. It is a perspective view which shows the opening procedure. 1A and 1B show a first embodiment of the first embodiment of the present invention, in which FIG. 1A is a schematic cross-sectional view, and FIG. Example 2 which shows Example 2 which concerns on the 1st form example of this invention, (A) is a schematic diagram of a cross section, (B) is a schematic diagram which shows the partially expanded state. Example 1 which shows Example 1 which concerns on the 2nd form example of this invention, (A) is a schematic diagram of a cross section, (B) is a schematic diagram which shows the partially expanded state. Example 2 which concerns on the 2nd form example of this invention is shown, (A) is a schematic diagram of a cross section, (B) is a schematic diagram which shows the partially expanded state. Example 3 which concerns on the 2nd form example of this invention is shown, (A) is a schematic diagram of a cross section, (B) is a schematic diagram which shows the partially expanded state. Example 4 which concerns on the 2nd form example of this invention is shown, (A) is a schematic diagram of a cross section, (B) is a schematic diagram which shows the partially expanded state. Example 1 which shows Example 1 which concerns on the 3rd form example of this invention, (A) is a schematic diagram of a cross section, (B) is a schematic diagram which shows the partially expanded state. Example 2 which concerns on the 3rd form example of this invention is shown, (A) is a schematic diagram of a cross section, (B) is a schematic diagram which shows the partially expanded state. Example 3 which concerns on the 3rd form example of this invention is shown, (A) is a schematic diagram of a cross section, (B) is a schematic diagram which shows the partially expanded state. It is an expanded view of the conventional sanitary napkin N. FIG. FIG. It is a top view which shows the folding procedure of the conventional wing-shaped flaps W and W. FIG.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Sanitary napkin, 2 ... Liquid impervious back sheet, 3 ... Liquid permeable top sheet, 4 ... Absorber, 5 ... Crepe paper, 6 ... Side nonwoven fabric, 9 ... Main body slip prevention adhesive layer, 10 ... Wing Anti-displacement pressure-sensitive adhesive layer, 14 ... Individual sheet, 20 ... Release material, W ... Wing flap

Claims (9)

Wing-like flaps are formed on both sides of the body part where the absorbent body is interposed between the liquid-permeable top sheet and the liquid-impervious back sheet so that the crotch part of the underwear is fixed when worn. In addition, a main body slip-off adhesive layer is formed on the surface of the main body portion on the liquid-impervious back sheet side, and a wing slip-off adhesive layer is formed on the surface of the wing-shaped flap on the liquid-impervious back sheet side. Is an individual package structure of the absorbent article formed with
The absorbent article is individually packaged, the wing-shaped flap is folded to the liquid-permeable surface sheet side, and a release material is provided to cover the main body slip-off adhesive layer and the wing slip-stop adhesive layer. Packaged by wrapping sheet,
The release material is made of one or a plurality of materials covering the main body anti-slip adhesive layer and the wing anti-slip adhesive layer, and covers the release material covering the main body anti-slip adhesive layer and the wing anti-slip adhesive layer. An individual packaging structure of an absorbent article, wherein the release material is continuous around the one side edge of the absorbent article.   The release material is made of one material that covers the main body anti-slip adhesive layer and the wing anti-slip adhesive layer, and the release material that covers the main body anti-slip adhesive layer covers one side edge of the absorbent article. The individual packaging structure of the absorbent article according to claim 1, which wraps around and covers the wings prevention adhesive layer.   The release material is fixed to the release material for the main body, the first release material that covers the main body anti-slip adhesive layer, and continues around the one side edge of the absorbent article. The individual packaging structure of an absorbent article according to claim 1, comprising a combination with a second release material covering the pressure-sensitive adhesive layer.   The release material covers the main body misalignment-adhering adhesive layer, continues around the one side edge of the absorbent article, and a first exfoliation material that covers one wing misalignment-adhering adhesive layer, and this The individual packaging structure of an absorbent article according to claim 1, comprising a combination with a second release material that is fixed to the first release material and covers the other wings-stopping adhesive layer.   The release material covers a first release material that covers the wings prevention adhesive layer, and covers the main body prevention adhesive layer, and wraps around one side edge of the absorbent article and the wing release material. The individual packaging structure of an absorbent article according to claim 1, comprising a combination with a second release material to be connected.   The release material is fixed to the first release material covering the main body anti-slipping adhesive layer, and is continuously attached around the one side edge of the absorbent article. 2. The combination of a second release material covering the anti-slipping adhesive layer and a third release material fixed to the second release material and covering the other wing anti-adhesive layer. Individual packaging structure of absorbent articles.   The release material includes a first release material that covers the main body anti-slip adhesive layer, a second release material that covers the wing anti-slip adhesive layer, the first release material, and the second release material. The individual packaging structure of an absorbent article according to claim 1, comprising a combination with a third release material that wraps around and connects one side edge of the absorbent article.   The release material that wraps around the one side edge of the absorbent article is made of a flexible material selected from the group consisting of a film, a nonwoven fabric, a laminated nonwoven fabric, and an elastic sheet member having elasticity. Item 8. An individually structured absorbent article according to any one of Items 1 to 7. In the wing-shaped flap located on the side opposite to the side to which the release material is connected around the one side edge of the absorbent article, the release material covering the wing-shaped flap is the other side edge of the absorbent article The individual packaging structure of an absorbent article according to any one of claims 1 to 8, wherein the absorbent article is folded in the vicinity and its folded surface is detachably attached to the wings-stopping adhesive layer.

Images