KR20110023786A - Individually packaged absorbent article - Google Patents

Abstract

PURPOSE: An individual packaging absorbent article is provided, which solidly joints release paper and packing sheet and makes a release paper smoothly released. CONSTITUTION: An individual packaging absorbent article comprises: a packing sheet(10) individually packing a sanitary napkin; a pair of wing dislocation prevention adhesive layers(8); a heap dislocation prevention adhesive layer(9); and a release paper(12) for a wing. The wing dislocation prevention adhesive layer has relatively low adhesion at the front of a sanitary napkin and high adhesion at the rear of the sanitary napkin. In the exterior of the release paper for a wing, an adhesive part is formed.

Description

Individually packaged absorbent articles {INDIVIDUALLY PACKAGED ABSORBENT ARTICLE}

The present invention relates to an individual packaged absorbent article in which the absorbent article is individually wrapped by a packaging sheet.

Conventionally, absorbent articles such as sanitary napkins, panty liners, secretion sheets, and incontinence pads include, for example, an impermeable back sheet made of polyethylene sheet or polyethylene laminate nonwoven fabric, a nonwoven fabric or a porous plastic sheet, or the like. Wing flaps are formed between the liquid-permeable surface sheets by wrapping the crochet portions of the underwear on each side of the main body portion where the absorber made of cotton pulp or the like is interposed between the liquid-permeable surface sheets. It is known that the hip-hold flaps are fixed to the inner surface side of the hip part of the underwear at the time of mounting, respectively, on both side parts of the main body part on the rear side.

In this type of absorbent article, in order to prevent misalignment during the mounting state, for example, one or more rows of pressure-sensitive adhesive layers are formed on the non-skin-contacting surface side (outer surface side of the back sheet) of the body portion. On the back sheet side surface (outer surface) of the wing-shaped flap and the hip hold flap, a wing shift prevention pressure sensitive adhesive layer and a hip shift prevention pressure sensitive adhesive layer are formed, respectively.

In the individual packaging of the absorbent article, the pair of the pressure-sensitive adhesive layer is made of paper or film, with the wing-shaped flaps and the hip hold flaps folded to the use surface side folded back to the liquid-permeable surface sheet side, respectively. The cover sheet is covered with a release paper for wings, and the packaging sheet is disposed on the outer surface side of the absorbent article, and the absorbent article, the release paper and the packaging sheet are folded together in the longitudinal direction, and the side edge portion is heat sealed and opened. The part is fixedly attached by tag tape or the like.

As such individual packaging absorbent articles, various ones have been conventionally proposed, and, for example, Patent Document 1 below discloses a first wing adhesive portion (a wing shift prevention adhesive layer) and a second wing adhesive portion (a hip shift prevention adhesive layer). Adhesive protective sheet (peel release paper for sticking) which can be peeled off together freely has a stretched portion extending out to the leading edge side than the first wing sticking portion located on the leading edge side of the packaging sheet, The packaging part of the absorbent article which has the fixing part which fixes the adhesion part protection sheet to the outer surface of the said packaging sheet is disclosed by the said extension part.

Japanese Patent No. 3685935

However, in the packaging structure of the said patent document 1, since the extension part of the said adhesive part protection sheet (peel release paper for wings) is not adhere | attached to the said 1st wing adhesion part (wing-shift-free adhesive layer), at the time of conveyance at a machine, There was a possibility that the stretched portion was folded, curled or wrinkled, and the fixing portion was not properly formed, and a poor adhesion between the adhesive portion protective sheet and the packaging sheet occurred.

By the way, in the packaging structure of the said patent document 1, since the fixing part fixed with a packaging sheet is formed in the said extension part, it is thought that the adhesive part protection sheet peels gradually from the front side of a wing shift prevention adhesive layer at the time of opening. . However, in general, since the wing shift prevention pressure-sensitive adhesive layer is formed in a rectangular shape, when the adhesive part protection sheet is to be peeled off from the front side of the wing shift prevention pressure-sensitive adhesive layer, the pulling force acts on the wing shift prevention pressure-sensitive adhesive layer. There existed a possibility that the resistive force corresponding to the formation width generate | occur | produces, and a jam will generate | occur | produce at this time and smooth peeling will not be performed. In order to avoid such a problem, when the width | variety of formation of an adhesive layer is narrowed, the adhesive force with respect to shorts will become inadequate and reliable fixing cannot be achieved.

Thus, the main problem of the present invention is to prevent the release paper from curling up or wrinkles during conveyance in the machine, to securely bond the wing release paper and the packaging sheet, and to release the wing release paper smoothly upon opening. An individual packaged absorbent article is provided.

In order to solve the above problems, the present invention according to claim 1 is fixed to both sides of the main body portion where the absorbent body is interposed between the liquid-permeable surface sheet and the back sheet, respectively, so as to wrap the crotch portion of the underwear at the time of mounting. An absorbent article having a wing-like flap formed thereon and a wing shift prevention pressure-sensitive adhesive layer formed on the rear sheet-side surface of the wing-shaped flap, a packaging sheet for individually packaging the absorbent article, and the wing-shaped flap respectively. An individual packaging absorbent article comprising a release paper for wings that covers a pair of the above-mentioned wing shift prevention pressure-sensitive adhesive layers so that the sheet is folded back to the liquid surface sheet side surface.

The wing shift prevention pressure-sensitive adhesive layer is formed such that the front side of the absorbent article has a relatively low adhesiveness, and the back side has a relatively high adhesiveness,

The outer surface of the release paper for wings is detachably adhered to the outer surface of the package sheet folded in four together with the absorbent article at the time of individual packaging, between the pair of wing misalignment prevention adhesive layers of relatively low adhesiveness. An individual packaged absorbent article is provided, wherein an adhesive portion is formed.

In the invention according to claim 1, the wing shift prevention adhesive layer is formed such that the front side of the absorbent article has a relatively low adhesiveness and the back side has a relatively high adhesiveness, and the outer surface of the release paper for wings is relatively low. An adhesive portion was formed between the pair of the above wing shift preventing pressure-sensitive adhesive layers, which was adhesively attached to the outer surface of the packaging sheet folded into four together with the absorbent article during individual packaging. Thus, since the release paper for wings is bonded by the wing shift prevention adhesive layer which has comparatively low adhesiveness, even when conveyed from a machine, the release paper for wings can be prevented from curling up and generation | occurrence | production of a wrinkle, and the said adhesive part can be prevented. Since it can form correctly, the release paper for wings and a packaging sheet can be reliably adhere | attached.

Moreover, at the time of opening, since peeling of the release paper for wings is performed from the part which has relatively low adhesiveness, smooth peeling of the release paper for wings is attained.

As the present invention according to claim 2, the individual wing-absorbing article according to claim 1 is provided such that the wing shift prevention pressure-sensitive adhesive layer is set so that the adhesiveness is gradually increased from the front side to the rear side of the absorbent article.

The invention according to claim 2 defines a first embodiment of the wing shift preventing pressure-sensitive adhesive layer, and is set so that the adhesiveness is gradually increased from the front side to the rear side of the absorbent article. Thereby, the resistance force accompanying peeling of the release paper for wings increases in steps, and smooth peeling of the release paper for wings becomes possible.

In the present invention according to claim 3, the wing shift preventing pressure-sensitive adhesive layer is formed to have a rectangular first pressure sensitive adhesive portion and a narrower width than the first pressure sensitive adhesive portion, and extends toward the front side of the absorbent article than the first pressure sensitive adhesive portion. It is comprised by the 2nd adhesive part which has a part to become,

On the outer surface of the said release paper for wings, the individual package absorbent article of any one of Claims 1 and 2 in which the said adhesive part is provided between a pair of said 2nd adhesive part extended in front of the said 1st adhesive part is provided. do.

The invention according to claim 3 defines a configuration according to a more specific first embodiment as the wing shift prevention pressure-sensitive adhesive layer, which is formed with a rectangular first pressure-sensitive adhesive portion and a narrower width than the first pressure-sensitive adhesive portion, A first pressure sensitive adhesive part comprising a second pressure sensitive adhesive part having a portion extending toward the front side of the absorbent article, wherein the outer surface of the release paper for wings is disposed between a pair of the second pressure sensitive adhesive parts extending forward than the first pressure sensitive adhesive part. The adhesive portion is formed.

In the present invention according to claim 4, the individual wing-absorbing article according to claim 1 is provided such that the wing misalignment pressure-sensitive adhesive layer is set to gradually increase in adhesiveness from the front side to the back side of the absorbent article.

The invention according to claim 4 defines a second embodiment of the wing shift preventing pressure-sensitive adhesive layer, and is set such that the adhesiveness gradually increases from the front side to the rear side of the absorbent article. Thereby, the resistance force accompanying peeling of the release paper for wings increases gradually, and smooth peeling of the release paper for wings becomes possible.

As the present invention according to claim 5, a hip hold flap is formed at both side portions of the main body portion behind the wing flap, respectively, which is fixed to the inner surface side of the hip part of the underwear at the time of mounting, and the wing flap and the hip are formed. The individual package absorbent article according to any one of claims 1 to 4, which is individually packaged in a state where the holding flaps are folded back to the liquid-permeable surface sheet side surface, respectively.

The invention according to claim 5 is a case of an absorbent article in which hip flaps are formed on both side portions of the main body portion behind the wing flap.

In the present invention according to claim 6, a hip shift prevention pressure-sensitive adhesive layer is formed on the back sheet side surface of the hip hold flap, and a pair of the wing shift prevention pressure-sensitive adhesive layer and the hip shift prevention pressure-sensitive adhesive layer are integrally formed by a release paper for wings. There is provided an individual packaged absorbent article according to claim 5 which is covered to be peelable.

According to the sixth aspect of the invention, a hip shift prevention pressure-sensitive adhesive layer is formed on the rear sheet side surface of the hip hold flap. In this case, the release paper for wings peels integrally a pair of said wing shift prevention adhesive layer and a hip shift prevention adhesive layer in the state which folded the said wing shape flap and the hip hold flap to the said liquid-permeable surface sheet side surface, respectively. It is arrange | positioned so that it may cover.

As described in detail above, according to the present invention, the release paper is prevented from being curled up and dried or wrinkles occur during conveyance in the machine, so that the wing release paper and the packaging sheet are firmly adhered to each other, and the wing release paper is smooth at the time of opening. It is possible to provide an individual packaged absorbent article which is to be peeled off easily.

1 is a partially broken development view showing a sanitary napkin 1 according to the present invention.
2 is a plan view showing the individual packaging tips of the sanitary napkin 1.
3 is a view seen from the direction of the arrow III-III of FIG.
4: (A)-(C) is an individual packaging flowchart of the individual packaging sanitary napkin N. FIG.
FIG. 5: is a perspective view which shows the individual wrapping state of the individual wrapping sanitary napkin N. FIG.
6 is a relative positional relationship diagram between the bonding portion 13 and the wing misalignment prevention adhesive layer 8.

DETAILED DESCRIPTION OF THE INVENTION

EMBODIMENT OF THE INVENTION Hereinafter, embodiment of this invention is described in detail, referring drawings.

[Structure Example of Physiological Napkin 1]

The sanitary napkin 1 which concerns on this invention is an impermeable back sheet 2 which consists of a polyethylene sheet, a polypropylene sheet, etc., the permeable surface sheet 3 which permeate | transmits acupuncture points, secretions, etc. quickly, The back sheet 2 is provided at both side edges in the longitudinal direction of the main body portion composed of an absorbent element 6 including an absorbent body 4 composed of planar pulp, synthetic pulp, or the like interposed between these two sheets 2, 3. ) And wing-shaped flaps (W, W) which protrude laterally from the bonding portion of the sheet and the surface sheet (3), and are fixed by wrapping the crochet portion of the underwear at the time of mounting, and the rear side thereof. In the longitudinal both side edges of the main body portion of the main body portion of the main body portion of the main body portion of the main body portion of the main body portion of the body portion of the underwear, A flap for holding the heap that (W _B, W _B) are formed. Moreover, you may form side nonwoven fabric along the longitudinal direction, respectively in the surface both sides, In this case, the said wing-shaped flaps W and W and the hip-holding flaps W _B and W _B are the back sheet 2 And the bonded portion of the side nonwoven fabric. Moreover, it is also possible to form a three-dimensional gather by the said side nonwoven fabric. In addition, the absorbent element 6 may include a crepe paper 5 surrounding the absorbent body 4 for maintaining the shape of the absorbent body 4 and improving the diffusibility.

Wing misalignment prevention adhesive layers 8 and 8 are formed in the surface (back surface) of the back sheet 2 side of the wing-shaped flaps W and W, and the hip-hold flaps W _B and W _B The hip shift prevention adhesive layers 9 and 9 are formed in the surface (back surface) of the back sheet 2 side. Further, on the back side of the main body portion having the absorbent element 6 interposed between the surface sheet 3 and the back sheet 2, a plurality of rows in the illustrated example, three rows in the illustrated example, by an application pattern suitable for fixing to the undergarment. Main body shift prevention adhesive layers 7 and 7 are formed.

In the present invention, in particular, the wing shift preventing pressure-sensitive adhesive layer 8 is formed so that the front side of the sanitary napkin 1 has a relatively low adhesiveness and the back side has a relatively high adhesiveness. This wing shift prevention adhesive layer 8 is explained in full detail in a later paragraph.

Hereinafter, the structure of the sanitary napkin 1 will be described in more detail.

As the back sheet 2, a sheet material having at least water repellency, such as an olefin resin sheet such as polyethylene or polypropylene, is used. In addition, a laminated nonwoven fabric laminated with a nonwoven fabric or the like, or waterproof Substantially impermeable liquid is ensured through the film, and then a nonwoven sheet (in this case, an impervious backing sheet is formed of a waterproof film and a nonwoven fabric) can be used. In recent years, the thing which has moisture permeability from the viewpoint of preventing dampness tends to be used. This water- and moisture-permeable sheet | seat material is a microporous sheet obtained by melt-kneading an inorganic filler in olefin resins, such as polyethylene and a polypropylene, and shape | molding a sheet, and extending | stretching to the uniaxial or biaxial direction.

Subsequently, the surface sheet 3 is preferably a porous or non-porous nonwoven fabric, a porous plastic sheet, or the like. Examples of the material fibers constituting the nonwoven fabric include synthetic fibers such as olefins such as polyethylene or polypropylene, polyesters, and polyamides, as well as regenerated fibers such as rayon and cupra, and natural fibers such as cotton. It is possible to use a nonwoven fabric obtained by a suitable processing method such as a spunlace method, a spunbond method, a thermal bond method, a melt blown method, a needle punch method, or the like. Among these processing methods, the spunlace method is excellent in that it is rich in flexibility and drape, and the thermal bond method is excellent in that it is bulky and soft.

The absorber 4 interposed between the back sheet 2 and the surface sheet 3 is made of, for example, fluff pulp and an absorbent polymer. The said water absorbent polymer is mixed in the pulp which comprises an absorber as a particulate powder, for example. Examples of the pulp include cellulose fibers such as chemical pulp and dissolved pulp obtained from wood, and artificial cellulose fibers such as rayon and acetate. Coniferous pulp having a longer fiber length than hardwood pulp is preferable in terms of function and price. Is used. As in the present example, when the crepe paper 5 surrounding the absorber 4 is formed, the crepe paper 5 is interposed between the surface sheet 3 and the absorber 4 as a result, so that the water absorbent 4 is excellent. The crepe paper 5 diffuses the body fluid rapidly, and prevents the menstrual blood and the like from flowing back.

Moreover, you may mix synthetic fiber with the said absorber 4. The synthetic fibers may be, for example, polyolefins such as polyethylene or polypropylene, polyesters such as polyethylene terephthalate or polybutylene terephthalate, polyamides such as nylon, and copolymers thereof, and the like. What mixed these 2 types may be sufficient. Moreover, composite fibers, such as a core sheath type fiber, a side by side type | mold fiber, and a split type fiber which made the fiber with high melting | fusing point the core and the low melting point fiber as the core, can also be used. In the case of hydrophobic fibers, the surface-treated with a hydrophilizing agent is preferably used so that the synthetic fibers have affinity for body fluids.

As an adhesive which forms the said anti-deviation adhesive layer 7, 8, 9, for example, a styrene-based polymer, a tackifier, and a plasticizer are preferably used as main components. Examples of the styrene polymers include styrene-ethylene-butylene-styrene block copolymers, styrene-butylene-styrene block copolymers, styrene-isobutylene-styrene copolymers, and the like. 2 or more types of polymer blends may be sufficient. Among these, styrene-ethylene-butylene-styrene block copolymer is preferable at the point that thermal stability is favorable. Moreover, as said tackifier and plasticizer, a solid thing can be used preferably at normal temperature, As a tackifier, C5 type petroleum resin, C9 type petroleum resin, dicyclopentadiene type petroleum resin, rosin type petroleum Resins, polyterpene resins, terpene phenol resins, and the like. Examples of the plasticizer include polymer plasticizers such as vinyl polymers and polyesters, in addition to monomer plasticizers such as triphenyl phosphate, dibutyl phthalate, and dioctyl phthalate. Can be mentioned.

[Individual packaging structure of physiological napkin 1]

Next, the individual packaging structure of the sanitary napkin 1 is explained in detail based on FIG. 2 and FIG.

The said individually packaged sanitary napkin N can peel the said sanitary napkin 1, the packaging sheet 10 which individually wraps this sanitary napkin 1, and the said main body shift prevention adhesive layer 7 and the covering body release paper (11), the wing-like flaps (W, W) and the flap for heap hold (W _B, W _B) of each of the top sheet (3) folded toward the surface using fold back to side of the side It consists of the release paper 12 for wings which covers a pair of wing shift prevention adhesive layer 8 and hip shift prevention adhesive layer 9 so that peeling is integrally possible.

As shown in FIG. 2, the said packing sheet 10 is larger than the width dimension of the napkin 1 in the state which folded the wing-shaped flap W and the hip hold flap W _B of both sides to the use surface side, Moreover, it is a rectangular sheet with the dimension extended to the outer side slightly rather than the front edge of the sanitary napkin 1. Moreover, about the back side of the sanitary napkin 1, you may form shorter than the rear edge of the sanitary napkin 1, but when folded, the sanitary napkin 1 is about to be covered by the packaging sheet 10. As shown in FIG. Length is needed.

As the packaging sheet 10, a nonwoven fabric, paper or plastic film or the like can be used as a material, but it is preferable to use a nonwoven fabric having high flexibility.

As for the said release paper 11 for main bodies, and the release paper 12 for wings, the contact surface with the adhesive layers 7, 8, and 9 is mold-released, respectively. This mold release treatment is performed only on the contact surfaces of the pressure-sensitive adhesive layers 7, 8, and 9, and the surface bonded to the packaging sheet 10 on the opposite side ensures adhesiveness with the packaging sheet 10. Do not perform any processing. The mold release treatment can be used, for example, by coating a mold release treatment liquid such as silicone resin, fluorine resin, or tetrafluoroethylene resin or spray coating. Moreover, even if it does not perform a mold release process in particular, as long as it does not cause the fall of adhesive force substantially, a film itself may be sufficient and a nonwoven fabric itself may be sufficient.

As the release paper 11 for the main body and the release paper 12 for the wing, a material such as a plastic film can be used in addition to the paper.

Moreover, the tag tape 15 is formed in the substantially center of the short edge of the said packaging sheet 10. As shown in FIG. The tag tape 15 is a member made of paper, plastic film, or the like, the proximal end of which is adhered to the packaging sheet 10 in a non-peelable manner, and an adhesive layer that is peelable is formed on the protruding portion, An adhesive gripping portion is formed.

On the outer surface of the said release paper 12 for wings, the adhesive part 13 adhere | attached non-peelable to the outer surface of the said packaging sheet 10 at the time of individual packaging is formed in the predetermined position.

[Individual packing order]

The procedure of individually wrapping the sanitary napkin 1 mentioned above is demonstrated.

First, the non-release processing surface side (outer surface side) of the main body release paper 11 is adhere | attached non-peelable to the said packaging sheet 10, and the mold release process surface (inner surface side) of this main body release paper 11 is peeled off. ), The sanitary napkin 1 is disposed on the upper surface of the packaging sheet 10 so that the anti-deviation adhesive layer 7 abuts.

Next, as shown in FIG. 2, wing-shaped flaps W and W and hip-holding flaps W _B and W _B on both sides are respectively based on the outer vicinity of the both edges of the absorbing element 6. And return to the surface on the side of the surface sheet 3. As a result, the pair of wing shift preventing pressure-sensitive adhesive layers 8 and 8 and the pair of hip shift prevention pressure-sensitive adhesive layers 9 and 9 are disposed almost adjacent to the surface, respectively.

When the flaps W and W _B of both sides are folded to the use surface side, a pair of wing shift prevention pressure-sensitive adhesive layers 8 and 8 and hip shift prevention pressure-sensitive adhesive layers 9 and 9 are integrally formed of one sheet of release paper for wings. It covers so that exfoliation is possible by (12).

And it peels off the outer surface of the packaging sheet 10 at the time of individual packaging, between the pair of said wing | flush shift prevention adhesive layers 8 and 8 which became relatively low adhesiveness on the outer surface of the said release paper 12 for wings. An adhesive portion 13 is formed which is impossible to bond (see Fig. 2).

In the packaging procedure of the sanitary napkin 1, as shown in FIG. 4A, the rear end portion of the hip shift prevention pressure-sensitive adhesive layer 9 of the napkin 1 is folded by the folding line L ₁ . Fold to the surface side together.

Then, as shown in Fig. 4 (B), and fold the front side with the rear end portion and the package sheet 10 in the folded napkin (1) by the folding line L ₁ by the folding line L ₂ of the napkin central portion. At this time, the adhesive 13 is in the folding is impossible to peel the outer surface of the folded package sheet 10 by the line L _1.

After that, as shown in FIG. 4 (C), the front end portion of the napkin 1 is folded together with the packaging sheet 10 by the folding line L ₃ , and the tag tape 15 formed at the short edge is formed into the packaging sheet ( As shown in FIG. 5, the open side edge portions 10a and 10a of the packaging sheet 10 are embossed, pressed, heated and fused, adhesives, etc. The containment is carried out by using appropriate containment means alone or in combination to complete the package sanitary napkin N in the form of an individually packaged product.

At the time of opening, it grasps the holding part of the said tag tape 15, and expands the front part of the napkin 1, and then catches the front part of the napkin 1 and pulls it to a development direction, and from the release paper 11 for main bodies While peeling off the main body shift prevention adhesive layer 7, the wing shift prevention adhesive layer 8 and the hip shift prevention adhesive layer 9 are peeled off from the release paper 12 for wings.

At this time, the wing shift prevention adhesive layer 8 is formed so that the front side of the napkin 1 has a relatively low adhesiveness, and the back side has a relatively high adhesiveness, and the said adhesion part 13 prevents a pair of wing shift | deviation. Since it is formed between the relatively low adhesive parts of the adhesive layer 8, even when conveying from a machine, the wing release paper 12 can be prevented from being curled up and a wrinkle generate | occur | producing, and the said adhesive part (13) can be formed correctly, and the wing release paper 12 and the packaging sheet 10 can be reliably adhere | attached. At the time of opening, peeling of the release paper 12 for wings is made from the front side which has relatively low adhesiveness, and smooth peeling is attained.

[Embodiment example of the wing shift prevention adhesive layer 8]

As described above, the wing shift preventing pressure-sensitive adhesive layer 8 is formed such that the front side of the sanitary napkin 1 has a relatively low adhesiveness and the back side has a relatively high adhesiveness. The form example of the said wing | shift shift prevention adhesive layer 8 for forming in this way is explained in full detail based on FIG. 2 and FIG. Here, FIG. 6 shows a pair of wing misalignment prevention adhesive layers 8 in a state where the wing-shaped flaps W and the hip-hold flaps W _B are folded to the use surface side folded back to the surface sheet 3 side, respectively. 8) is a plan view showing the relative positional relationship between the bonding portion 13.

First, as a 1st aspect example, as shown to FIG. 2 and FIG. 6 (A), it sets so that adhesiveness may become step by step toward the back side from the front side of the sanitary napkin 1. More specifically, as shown in FIG. 2, it is formed to be spaced apart from the rectangular first pressure sensitive adhesive portion 8A and the side portion thereof, and is formed to have a narrower width than the first pressure sensitive adhesive portion 8A. It consists of the 2nd adhesive part 8B which has the part extended to the front side of the sanitary napkin 1 rather than the adhesive part 8A. Thereby, with respect to the front-back direction of the sanitary napkin 1, it has comparatively low adhesiveness in the area | region of the 2nd adhesive part 8B extended ahead of the 1st adhesive part 8A, and the 1st adhesive part ( It has relatively high adhesiveness in the region of 8A). In addition, in the example shown, the said 2nd adhesive part 8B is inside of the 1st adhesive part 8A in the state which folded the flap parts of both sides to the use surface side (in the state which developed the flap part, 1st adhesive part 8A). 1 is disposed on the outer side (see FIG. 1) of the first adhesive portion 8A in the state where the flap portion is folded toward the use surface side (inside the first adhesive portion 8A in the expanded state). You may also In the illustrated example, the second pressure sensitive adhesive portion 8B is spaced apart from the side of the first pressure sensitive adhesive portion 8A and formed over the entire length of the first pressure sensitive adhesive portion 8A. It may be formed so that it may be spaced apart in the arbitrary width direction position of the front).

In addition, as said 1st aspect example, as shown to FIG. 6 (A), you may make it the shape which made the above-mentioned 1st adhesive part 8A and 2nd adhesive part 8B connect. Here, the relatively low adhesive narrow portion extending toward the front side of the napkin 1 may be formed inward with respect to the width direction as in the illustrated example, but if it is the front side of the wing shift prevention adhesive layer 8, the center portion It can be formed in arbitrary width direction positions, such as the outer side. In addition, although not shown in figure, you may form as the narrow part extended to the front side in step shape which expanded the width stepwise from the front side of the napkin 1 toward the back side.

Next, as a 2nd aspect example, as shown to FIG. 6 (B)-(D), it sets so that adhesiveness may become gradually high toward the back side from the front side of the napkin 1. More specifically, as shown in Fig. 6 (B), a right triangle shape in which the formation width of the pressure-sensitive adhesive layer is gradually expanded from the inside toward the outside, and the formation width of the pressure-sensitive adhesive layer gradually toward both sides as shown in (C). As shown to (D), the isosceles triangle shape which extended | stretched was made into the trapezoid shape which expanded the formation width of an adhesive layer gradually from inside to outside in a predetermined length.

By the way, as shown to FIG. 2 and FIG. 6, it is preferable to form the said adhesion part 13 in close proximity to the inner edge of the part which became the comparatively low adhesiveness of the wing | shift shift prevention adhesive layer 8, and wing You may form the part which became the comparatively low adhesiveness of the shift | offset | difference prevention adhesive layer 8 across. Thereby, the tension | pulling force at the time of pulling out and peeling off the peeling paper 12 for wings at the time of opening is easy to be applied directly to the wing | flush shift prevention adhesive layer 8, and smooth peeling is attained.

[Other Forms]

(1) Although the front side of the sanitary napkin 1 has relatively low adhesiveness and the back side has relatively high adhesiveness with respect to the wing shift prevention adhesive layer 8 in the said aspect example, this wing shift prevention adhesive layer In addition to (8), also in the hip shift prevention adhesive layer 9, you may form so that the front side of the sanitary napkin 1 may have relatively low adhesiveness, and the back side may have relatively high adhesiveness.

(2) In the above embodiment, the absorbent article is folded by folding into four, but the packaging sheet 10 is extended outward from the rear end of the sanitary napkin 1, and the inner surface of the extended packaging sheet 10 is attached to the adhesive portion. It may be made to adhere to (13), and it may be folded by folding in three.

One … Sanitary napkin
2 … Back sheet
3…. Surface sheet
4 … Absorber
5 ... Crepe paper
6 ... Absorption element
7 ... Body shift prevention adhesive layer
8 … Wing misalignment prevention adhesive layer
8A. First adhesive part
8B. 2nd adhesive part
9 ... Hip misalignment prevention adhesive layer
10 ... Packing sheet
11 ... Release paper for the body
12 ... Release paper for wing
13 ... Adhesive
15 ... Tag tape
N… Individually packaged sanitary napkin
W… Wing Shape Flap
W _B … Flap for hip hold

Claims (6)

Wing flaps are formed between the liquid permeable front sheet and the back sheet, respectively, on both sides of the main body portion having the absorbent body interposed therebetween so as to wrap the crotch portion of the underwear at the time of mounting, and further, the flap of the wing flap A pair of absorbent articles in which a wing shift prevention adhesive layer is formed on the back sheet side, a packaging sheet for individually packaging the absorbent articles, and the wing-shaped flaps are folded to the liquid-permeable surface sheet-side surface, respectively. As an individual packaging absorbent article which consists of a release paper for wings which covers the said wing | shift shift prevention adhesive layer so that peeling is possible,
The wing shift prevention pressure-sensitive adhesive layer is formed such that the front side of the absorbent article has a relatively low adhesiveness, and the back side has a relatively high adhesiveness,
The outer surface of the release paper for wings is detachably adhered to the outer surface of the package sheet folded in four together with the absorbent article at the time of individual packaging, between the pair of wing misalignment prevention adhesive layers of relatively low adhesiveness. Individually packaged absorbent article, wherein the adhesive portion is formed. The method of claim 1,
The said wing | wound shift prevention adhesive layer is set so that adhesiveness may become high step by step toward the back side from the front side of the said absorbent article. The method according to claim 1 or 2,
The wing shift prevention pressure-sensitive adhesive layer is a second pressure-sensitive adhesive part having a rectangular first pressure-sensitive adhesive part, a width narrower than the first pressure-sensitive adhesive part, and a portion extending toward the front side of the absorbent article than the first pressure-sensitive adhesive part. Composed,
An outer packaging absorbent article according to claim 1, wherein the adhesive portion is formed between a pair of the second adhesive portions extending in front of the first adhesive portion. The method of claim 1,
The said wing | wound shift prevention adhesive layer is set so that adhesiveness may become gradually high toward the back side from the front side of the said absorbent article. The method according to any one of claims 1 to 4,
Hip-side flaps are formed on both side portions of the main body portion behind the wing-shaped flaps, respectively, which are fixed to the inner surface side of the hip part of the underwear at the time of mounting, and the wing-shaped flaps and the hip-holding flaps are respectively formed. Individually packaged absorbent article packaged individually with the liquid surface sheet side folded back. The method of claim 5, wherein
Individual packaging in which a hip shift prevention pressure sensitive adhesive layer is formed on the back sheet side surface of the hip hold flap, and a pair of the wing shift prevention pressure sensitive adhesive layer and the hip shift prevention pressure sensitive adhesive layer are integrally covered with a release paper for wing. Absorbent articles.

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