JPH0727537U - Sanitary napkin packaging structure - Google Patents

Abstract

(57) [Abstract] [Purpose] It is not necessary to discard the release paper, and the sanitary napkin is provided with an adhesive layer having a sufficient tack force against shorts at the time of use, and the adhesive layer is used for packaging materials. (EN) Provided is a packaging structure for a sanitary napkin, which is also excellent in peelability and in which the release paper does not fly out of the packaging material. [Composition] A sanitary napkin and a wrapping material, and an adhesive layer provided on the non-skin contact surface of the sanitary napkin and a release paper fixed to the inner surface of the wrapping material are removably adhered. The sanitary napkin is folded in its longitudinal direction to form a bent portion, and a take-out opening formed by opening the packaging material along the side edge in the longitudinal direction or along the bent portion. A plurality of release papers are provided on at least one surface of the inner surface from the outlet to the opposite side, and the end of each release paper on the outlet side is inside the packaging material. The packaging structure of the sanitary napkin fixed on the surface.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a sanitary napkin packaging structure that does not require disposal of release paper and has sufficient tack force for shorts.

[0002]

[Prior art]

 Usually, a sanitary napkin is provided with an adhesive for fixing the napkin to shorts and for preventing the slippage during use, and a release paper for protecting the sanitary napkin. In this case, since it is necessary to peel off and discard the release paper before use, it is troublesome to dispose of the release paper, and when it is discarded in the toilet bowl, there is a problem that the toilet bowl is clogged.

Therefore, various technologies related to the packaging structure of a sanitary napkin having no release paper have been proposed, and specifically, the following are listed. A package for a biologic napkin, which comprises an adhesive layer of a sanitary napkin directly contacting a polyolefin film (Japanese Utility Model Publication No. 59-9615). A package (Japanese Utility Model Publication No. 59-25371) in which a sanitary napkin is individually packaged by a wrapping material made of a water-soluble film and having a release layer at a portion in contact with the adhesive layer of the sanitary napkin. A packaging body in which the adhesive layer of the sanitary napkin is exposed from the open end of the pocket portion of the packaging material, and the non-adhesive layer of the packaging material is fixed to the adhesive layer on the upper surface of the pocket portion (Actual Development No. 57). -34211). A packaging material that has a peeling treatment part at the part that contacts the adhesive part of the sanitary napkin seals four sides of two sheets and provides perforations for opening. (Kaisho 58-179120). A sanitary napkin package comprising a multi-layer resin film having a releasable layer in a portion abutting the pressure-sensitive adhesive layer of the sanitary napkin as a packaging material (Japanese Utility Model Publication No. 63-71025). A packaging material for a napkin, which is a film made of a resin mainly composed of an olefin polymer and a silicone copolymer (Japanese Utility Model Publication No. 35724/1990). A packaging material for napkins, in which a peeling area coated with silicone and a sealing area capable of heat-sealing are formed (Japanese Utility Model Publication No. 4-11324). 1) A napkin-wrapped body with blades, in which the flap was used as a protective member for covering and protecting the pressure-sensitive adhesive of the sanitary napkin (Japanese Utility Model Publication No. 3-46316). 2) In a packaging structure of a napkin with wings, a packaging structure in which a release paper is provided to protect the adhesive layer of the flap portion (Japanese Utility Model Laid-Open No. 2-17127). 3) A sanitary napkin package in which a flap and an adhesive layer of the absorbent main body are coated with a double-sided release paper in a napkin with blades (Jitsukai Sho 63-186645 publication). 1) A packaging structure of a napkin in which a sanitary napkin is packaged with a release-treated packaging material (JP-A-3-176376). 2) A packaging structure in which the release paper and the packaging material are fixed so that the release paper is peeled off at the same time when the napkin is taken out of the bag (Japanese Utility Model Laid-Open No. 1-1509919). 3) A napkin packaging structure in which a release paper is sandwiched between the mouths of packaging materials, and at the same time when the bag is opened, the release paper is peeled off from the adhesive portion (Japanese Utility Model Publication No. 60-79421). 4) A packaging structure capable of automatically peeling the release paper by opening the packaging material and taking out the sanitary napkin (Japanese Utility Model Publication No. 58-58029 and Japanese Utility Model Publication No. 4-120733).

[0004]

[Problems to be solved by the device]

 However, the above-mentioned package has the following problems. In the above-mentioned package, since the wrapping material for wrapping the napkin is a single film, the peeling property becomes low with time, and the wrapping material stretches or tears when the napkin is taken out. If the thickness of the film is increased in order to suppress this, not only the cost will be increased, but also the film itself will be hard and the package cannot be easily opened. In the above-mentioned package, the film strength is low, and there is a problem that it stretches or tears when peeling the packaging material, and if the peeling degree of the film is increased to solve such a problem, The water solubility of the film is impaired and the toilet bowl becomes clogged when it is discarded. In the above package, since the adhesive layer can be provided only on a part of the napkin, the fixability of the napkin during use is poor. In the above-mentioned package, perforations are provided, but since air easily enters from the perforations and the package expands, it is difficult to carry or open. In the above and above packaging, since the content or copolymer of the peeling substance such as silicone resin is used as the thermoplastic resin, the peeling substance bleeds out and the peeling degree becomes unstable due to temperature and humidity. It is easy to get into a state. Further, a region where the peeling force is partially reduced occurs on the peeling surface, and in some cases, the film does not peel off. Further, the bleed-out peelable substance often migrates to the adhesive surface, and it is difficult to maintain the peeling stability with time in any environment. The above packaging has the same problems as above, and since it uses a film in which a peelable area and a sealable area are set in advance, a heat seal layer is provided and the product must be placed at a fixed position. Need to be packaged, which is inferior in economic efficiency and productivity. In the packaging body of 1) above, release paper is still required for the adhesive layer of the absorbent main body, and in the packaging structure of 2) above, the release paper for the adhesive layer of the flap portion. Both of them have not solved the above-mentioned problems caused by the release paper. Further, in the packaging body of 3) above, since the adhesive layers of both the flap and the absorbent body are covered with the double-sided release paper, the above-mentioned problem with the release paper has not been solved. In the packaging structures of 1) and 2) above, the napkin cannot be immediately taken out from the wrapping material because the wrapping material is opened and peeled off so that one end of the wrapping material is peeled off. Similarly, in the packaging structure of 3) above, the napkin cannot be taken out immediately because the napkin and the release paper are peeled off after pulling the release paper exposed from the opening of the packaging material to open it. In the packaging structure of 4) above, since the napkin is pulled out from the front end or the rear end of the napkin and the napkin is in the unfolded form, it cannot be immediately taken out from the packaging material with the napkin folded. Also, since the release paper will fly out of the packaging material, the release paper must be discarded or stored by repacking it in the packaging material.

That is, the above-mentioned structure of the package has both the peelability between the adhesive layer provided on the sanitary napkin and the release layer provided on the package, and the tack force of the adhesive layer against shorts. There is a problem that it cannot be satisfied with sufficient practicality.

Therefore, it is an object of the present invention that the release paper does not need to be discarded, and the sanitary napkin is provided with an adhesive layer having a sufficient tack force against shorts during its use, and Another object of the present invention is to provide a packaging structure for a sanitary napkin which has excellent releasability with respect to the packaging material and in which the release paper does not fly out of the packaging material.

[0007]

[Means for Solving the Problems]

 As a result of earnest studies to solve the above problems, the present inventors have found that the above object can be achieved by using a plurality of release papers and fixing a specific position of the release papers to the packaging material. Heading The present invention has been completed.

That is, the present invention comprises a sanitary napkin and a packaging material for packaging the sanitary napkin, and an adhesive layer provided on a non-skin-contacting surface of the sanitary napkin and an inner surface of the packaging material. In a packaging structure for a sanitary napkin, which is detachably adhered with a release paper, the sanitary napkin is folded in the longitudinal direction to form a bent portion, and An outlet for the sanitary napkin formed by opening the packaging material is provided along the side edge or the bent portion, and the release paper is at least the inner surface of the packaging material. On one surface, a plurality of discharge sheets are arranged from the outlet to the opposite side of the outlet, and the end of each release paper on the outlet side is fixed to the inner surface of the packaging material. Sanitary napkin packaging structure Is provided.

[0009]

[Action]

 The packaging structure of the present invention comprises a sanitary napkin folded in the longitudinal direction and wrapped with a packaging material, and the adhesive layer of the sanitary napkin is detachably attached to a release paper fixed to the packaging material. Has been done. Before the sanitary napkin is used (at the time of storage), the adhesive layer provided on the sanitary napkin is entirely protected by a release paper fixed to the packaging material. When the sanitary napkin is used, the packaging material is opened, and the sanitary napkin is taken out from the sanitary napkin taking-out port formed thereby, whereby the adhesive layer and the release paper are separated. The sanitary napkin with the adhesive layer exposed can be attached to the shorts, and the release paper does not stay inside the packaging material and fly outside.

[0010]

【Example】

 Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings, but the present invention is not limited thereto.

FIG. 1 (A) is a perspective view showing an embodiment of a packaging structure for a sanitary napkin according to the present invention, and FIG. 1 (B) is an I-I of the packaging structure shown in FIG. 1 (A). ′ Is a cross-sectional view, FIG. 2 is a bottom view of the sanitary napkin shown in FIG. 1, and FIG. 3 is a perspective view of the packaging material shown in FIG. 4 (A) is a perspective view showing a mode in which the packaging structure shown in FIG. 1 is opened and the sanitary napkin is taken out, and FIG. 4 (B) is the packaging structure shown in FIG. 4 (A). 5A is a cross-sectional view taken along the line II ′ of FIG. 5, and FIG. 5A is a perspective view showing a state in which the packaging structure shown in FIG. 1 is opened and the sanitary napkin is completely taken out, and FIG. 5B is a cross-sectional view taken along the line II ′ of the packaging structure shown in FIG.

A sanitary napkin packaging structure 1 of the present embodiment shown in FIGS. 1A and 1B includes a sanitary napkin 10 and a packaging material 20 for packaging the sanitary napkin 10. An adhesive layer 16 provided on the skin contact surface 12 and a release paper 21 fixed on the inner surface of the packaging material 20 are detachably adhered. The sanitary napkin 10 is folded in the longitudinal direction to form a bent portion 17, and the packaging material 20 is opened along the longitudinal side edge 18 of the sanitary napkin 10. An outlet 26 for the sanitary napkin 10 is provided, and the release paper 21 is directed from the outlet 26 to the opposite side of the outlet 26 on one surface of the inner surface of the packaging material 20. And the end 27 of each release paper 21 on the side of the outlet 26 is fixed to the inner surface of the packaging material 20.

More specifically, the packaging structure 1 for a sanitary napkin according to this embodiment has two folds that divide the sanitary napkin 10 in the longitudinal direction into a front portion 13, a central portion 14 and a rear portion 15 into three substantially equal parts. In the part 17, the rear part 15 and the front part 13 are arranged in this order in the sanitary napkin 10 that is folded in three on the skin contact surface 11 side of the central part 14 so that the adhesive layer 16 contacts the release paper 21. The packaging material 20 is packaged so as to be in contact with each other, and both side edge portions 24 and edge portions 25 (see FIG. 3) of the packaging material 20 are fixed. Here, the front part 13 is a part located in the front direction of the user when the sanitary napkin is used. Further, both side edge portions 24 and edge portions 25 of the packaging material 20 are joined by heat sealing, and the take-out port 26 is formed along one longitudinal edge 18 of the sanitary napkin. A perforation 23 is provided for this purpose.

The sanitary napkin 10 packaged by the packaging structure of the present invention has an adhesive layer 16 on the front portion 13 of the non-skin contact surface 12, as shown in FIG. In the sanitary napkin 10, the skin contact surface 11 is formed of a liquid-permeable sheet material, and the non-skin contact surface 12 is formed of a liquid-impermeable sheet material. A normal sanitary napkin having a liquid-retaining absorber between the surface 11 and the non-skin contact surface 12.

The adhesive layer 16 is applied to the non-skin contact surface 12 with a pressure sensitive adhesive, or is applied to a peeling-treated packaging film and then transferred onto the non-skin contact surface 12. And the like. In any of the above methods, it is desirable that the area of the adhesive is smaller than that of the release paper, which causes a portion of the non-skin contacting surface 12 in the longitudinal center thereof to which the adhesive is not applied. Therefore, unlike the conventional case, the inconvenience that the adhesives are attached to each other at the time of mounting and must be peeled off hardly occurs. As the pressure-sensitive adhesive forming the above-mentioned pressure-sensitive adhesive part, for example, one having a styrene-based block polymer, a tackifier and a softening agent as main components and having a two-phase block structure of a styrene phase and a rubber phase is used. To be

Examples of the styrene block polymer include styrene-ethylene-butylene-styrene block copolymer (SEBS), styrene-isoprene-styrene block copolymer (SIS), styrene-butadiene-styrene block copolymer. (SBS), styrene-ethylene-propylene-styrene copolymer (SEPS) and the like. These styrenic block polymers are block copolymers having a styrene portion having a molecular weight of preferably 7,000 to 20,000 and a rubber portion having a molecular weight of preferably 35,000 to 70,000.

As the tackifier, a C ₅ petroleum resin having a softening point of 80 ° C. or higher and a molecular weight of 400 to 2,000, a C ₉ petroleum resin, a C ₅ / C ₉ petroleum resin, α Examples thereof include a polyterpene resin which is a copolymer of pinene, β-pinene or dipentene, a rosin resin, or a hydrogenated product thereof. Examples of the softening agent include process oils having a softening point of 10 ° C. or lower and an average molecular weight of 200 to 700, various plasticizers, polybutene, and liquid resins.

As the pressure-sensitive adhesive, those having the following composition are particularly preferable. Styrene block polymer 100 parts by weight, tackifier 150 to 200 parts by weight, softener 30 to 100 parts by weight

Further, as shown in FIG. 3, the packaging material 20 has a release paper 21 fixed to a portion of the sanitary napkin 10 corresponding to the adhesive portion 16 via a fixing portion 22. A polyolefin film having a thickness of 5 to 20 μm is preferably used as the packaging material 20.

The characteristic part of the sanitary napkin packaging structure 1 of the present embodiment will be described in more detail. In the sanitary napkin packaging structure 1 of the present embodiment, the sanitary napkin 10 is folded in its longitudinal direction. To form a bent portion 17, and to take out the sanitary napkin 10 formed by unsealing the packaging material 20 from the perforations 23 along the longitudinal side edge 18 of the sanitary napkin 10. 26 are provided. Further, two release papers 21 are provided on one surface of the inner surface of the packaging material 20 from the take-out port 26 to the opposite side of the take-out port 26. An end portion 27 on the side of the outlet 26 is fixed to the inner surface of the packaging material 20 via the fixing portion 22.

As the release paper 21, a release paper base material coated with a release agent is preferably used. Preferable examples of the release paper substrate include films or non-woven fabrics such as polypropylene having a thickness of 5 to 50 μm, low density polyethylene and polyvinyl alcohol, and papers, and composite materials thereof. The release agent is preferably silicone-based, fluorine-based, isocyanate-based, or the like. In particular, it is preferable that a silicone resin-based release agent is applied to the release paper base material and dried by heating, or sprayed with a spray to form a thin film.

The fixing portion 22 is formed by, for example, an adhesive or heat sealing, and as the adhesive, a material containing a styrene-based block polymer as a main component similar to the adhesive layer 16 is used. When heat sealing is used, it is preferable to use a polyolefin film for both the packaging material and the release paper substrate.

Further, in the sanitary napkin packaging structure of the present invention, the outlet 26 may be provided along a bent portion where the sanitary napkin is folded. However, when the napkin is folded in three as in the present embodiment, it is better not to provide the outlet 26 along the exposed end of the napkin in the longitudinal direction (the end on the front part 13 side). It is preferable in terms of easiness.

The release paper 21 and the pressure-sensitive adhesive layer 16 are preferably selected so that the 180 ° peel strength measured by the following method is preferably 30 to 90 g / 50 mm. With the combination of the pressure-sensitive adhesive having the 180 ° peel strength and the release paper, the shear strength of the normal release paper fixed on the entire surface of the packaging material reaches several hundred g / 50 mm to several kg / 50 mm. Therefore, it cannot be easily peeled off. In addition, if the shear strength is low and the tape can be easily peeled off, the adhesive layer and the release paper will not easily peel off when the packaging structure is preserved (before the sanitary napkin is used). There arises such an adverse effect that the adhesive layer adheres to a portion other than the release paper. Further, the shear strength of the structure in which the release paper fixing portion is provided on the inner surface of the packaging material on the side opposite to the take-out port 26 is the same as when peeling the release paper fixed through the fixing portion on the take-out side as in the present invention. It is much higher than 180 ° peel strength, and in fact, in the case of a combination of a normal pressure sensitive adhesive and a release paper, when the peeling is attempted, the packaging bag is broken.

<180 ° peel strength (adhesive strength)> A 180 ° peel strength when a pressure-sensitive adhesive is applied to a polyethylene terephthalate film with a thickness of 50 μm and pressure-bonded to a stainless steel plate (sus304) with one reciprocation of a 2 kg rubber roller. Was measured.

When the sanitary napkin 10 is used, first, as shown in FIGS. 4A and 4B, the perforation 23 provided on the packaging material 20 of the packaging structure 1 is opened. To open the take-out port 26, and pull out the sanitary napkin 10 from the take-out port 26 in the direction of the arrow to release the release paper 21 as shown in FIGS. 5 (A) and 5 (B). The sanitary napkin 10 can be used by being automatically peeled from the adhesive layer 16 without the need.

Since the sanitary napkin packaging structure of the present invention can be pulled out from the side edge or the bent portion in the longitudinal direction of the sanitary napkin as described above, the sanitary napkin can be folded. The sanitary napkin can be taken out as it is, and when the sanitary napkin is taken out, there is no adverse effect such as adhesion of the adhesive layer to a part other than the release paper, and further, the release paper does not pop out.

The sanitary napkin packaging structure 1 of this embodiment is formed as follows. In order to form the packaging structure 1 for the sanitary napkin of this embodiment, first, the bent portion 17 of the sanitary napkin shown in FIG. Fold it in three on the skin contact surface 11 side. Next, the adhesive layer 16 provided on the non-skin contacting surface 12 side of the front portion 13 of the folded sanitary napkin is brought into contact with the release paper 21 fixed to the packaging material 20, and the packaging material 20 is placed on both sides. Fold the edge parts 25, 25 '(see FIG. 3) toward the front part 13 side of the sanitary napkin 10, and finally heat seal the both side edge parts 24 and the edge parts 25 of the packaging material 20. It can be formed by fastening it.

Next, another embodiment of the present invention shown in FIGS. 6 and 7 will be described. The points that are not particularly described are the same as those in the above-described embodiment. FIG. 6 is a cross-sectional view [corresponding to FIG. 1 (B)] showing another embodiment of the packaging structure for a sanitary napkin of the present invention, and FIG. 7 shows another packaging structure for a sanitary napkin of the present invention. FIG. 3 is a sectional view showing an example [corresponding to FIG. 1 (B)].

In a sanitary napkin packaging structure 1A according to another embodiment shown in FIG. 6, two release papers 21A are provided on each of two opposing inner surfaces of the packaging material 20A. It is a thing. Specifically, in the above-mentioned sanitary napkin packaging structure 1A, the adhesive layer 16A 'is also provided on the non-skin contact surface 12A side of the central portion 14A of the sanitary napkin 10A. Then, two release papers 21A and 21A 'are provided on the two inner surfaces of the packaging material 20A, which face each other, that is, on the front portion 13A side and the central portion 14A side of the sanitary napkin 10A. One end 27A, 27A 'of each of the release papers 21A, 21A' is fixed to the inner surface via fixing portions 22A, 22A '.

In a sanitary napkin packaging structure 1B according to another embodiment shown in FIG. 7, the release paper 21B disposed on the opposite side of the outlet 26B is provided on one surface of the inner surface of the packaging material 20B. It extends from the central portion to the central portion of the surface opposite to the one surface via the side opposite to the outlet 26B. Specifically, the adhesive layer 16B 'is also provided on the non-skin contacting surface 12B side of the central portion 14B of the sanitary napkin 10B, and the release paper 21B' is positioned relative to the inner surface of the packaging material 20B from the outlet 26B. It is provided so as to extend over the two surfaces (covering the other side edge 18B ′ in the longitudinal direction of the sanitary napkin 10B) and also contacts the adhesive layer 16B ′. Next, another embodiment of the packaging structure of the sanitary napkin of the present invention shown in FIGS. 8 to 10 will be described. FIG. 8 (A) is a perspective view showing another embodiment of the packaging structure of the sanitary napkin of the present invention, and FIG. 8 (B) is a sectional view taken along the line II ′ of the packaging structure shown in FIG. 8 (A). 9 is a perspective view of the sanitary napkin and the packaging material shown in FIGS. 8 (A) and 8 (B), and FIG. 10 shows the packaging structure shown in FIGS. 8 (A) and 8 (B). It is a schematic perspective view showing the aspect.

A sanitary napkin packaging structure 1C according to another embodiment shown in FIGS. 8A and 8B is configured such that the non-skin contact surface 12C of the sanitary napkin 10C is brought into contact with the packaging material 20C. The napkin 10C and the packaging material 20C are integrally folded. Specifically, as shown in FIG. 9, the sanitary napkin 10C is provided with adhesive layers 16C on the non-skin contacting surface 12C side of the front portion 13C 1, the center portion 14C and the rear portion 15C thereof, respectively. Corresponding to this, the release paper 21C is fixed to the packaging material 20C at six places via the fixing portions 22C. Then, as shown in FIG. 10, the non-skin contacting surface 12C of the sanitary napkin 10C is brought into contact with the packaging material 20C so that the release paper 21C comes into contact with the respective adhesive layers 16C, and the sanitary napkin 10 is obtained. C and the packaging material 20C are integrally folded. With such a structure, even if the adhesive layer 16C is provided over a wide range on the non-skin contact surface 12C of the sanitary napkin 10C, the adhesive layer 16C can be entirely protected by the release paper 21C. A desired effect can also be exhibited. Then, when the sanitary napkin 10C is used, it can be used by opening the packaging structure and taking out the sanitary napkin, as in the above-described embodiment. In the case of the constitution of this example, it is practically preferable to use a non-woven fabric as the top sheet of the sanitary napkin.

Next, another embodiment of the sanitary napkin packaging structure of the present invention shown in FIGS. 11 to 14 will be described. FIG. 11 is a perspective view showing another embodiment of the sanitary napkin packaging structure of the present invention, and FIG. 12 is a bottom view of the sanitary napkin in the packaging structure shown in FIG. 13 is a schematic perspective view showing a mode in which the flap of the sanitary napkin shown in FIG. 12 is folded, and FIG. 14 is a schematic perspective view showing a mode in which the sanitary napkin shown in FIG. 13 is folded in three. Is.

In another embodiment sanitary napkin packaging structure 40 shown in FIG. 11, a sanitary napkin 50 is formed by extending a napkin main body 59 and left and right side edges in the longitudinal direction thereof in respective width directions. A sanitary napkin having a pair of flaps 60, and an adhesive layer 56 provided on the front part 53 of the sanitary napkin 50 and two peeling parts fixed to a packaging material 70 via a fixing part 72. The paper 71 is adhered. In detail, as shown in FIG. 12, the sanitary napkin 50 has an adhesive layer 61 at a substantially central portion of the flap 60, and is disposed on the non-skin contacting surface 52 side of the central portion 54 of the napkin body 59. It has a peeling portion 58. As shown in FIG. 13, the sanitary napkin packaging structure of the present embodiment is configured such that the flap 60 is bent toward the non-skin contacting surface 52 side of the napkin body 59 to separate the adhesive layer 61 and the peeling portion 58. As shown in FIG. 14, the sanitary napkin 50 in which the flap 60 is bent is brought into contact with the bent part 57, and the sanitary napkin 50 is folded in three so that the front part 53 is exposed. The sanitary napkin 50 is substantially hermetically packaged by the packaging material 70 so that the release paper 71 contacts the adhesive layer 56 of 53.

When the sanitary napkin 50 is used, it can be used by taking out the sanitary napkin and peeling the adhesive layer 61 of the flap 60 from the peeling portion 58 as in the above-described embodiment.

The packaging structure of the sanitary napkin of the present invention is not limited to the above-described embodiment, and for example, the above-mentioned adhesive layer is not the above-mentioned rectangular shape but the above-mentioned take-out port. It is also possible to form a plurality of linear, spiral, or dot-shaped ones in parallel with. Further, in the above-described embodiment, an example in which the perforation is provided over the entire circumference of the packaging structure has been described, but the perforation may be provided only on the upper surface or the lower surface of the packaging structure. Further, the take-out direction may be taken out not only from the side edge portion but also from the bent portion by providing a take-out port along the bent portion. Further, the number of release papers is arbitrary as long as it is plural, and, for example, three or more release papers can be provided on one surface of the packaging material.

[0037]

[Effect of device]

 The sanitary napkin packaging structure of the present invention is provided with a wide range of adhesive layers so that the sanitary napkin with wings has a sufficient tack force against shorts when used, and the packaging material for the adhesive layer is It also has excellent releasability, and specifically exhibits the following effects.

The packaging material does not stretch or tear. The noise generated when peeling the bag is small. Packaging does not shrink due to heat. The packaging material is easy to peel from the adhesive layer. A large number of adhesive parts can be provided. You can save the trouble of peeling the release paper when using the sanitary napkin. In particular, it is not necessary to discard the release paper such as the flap portion used in the usual napkin with wing, and the release paper is not thrown into the toilet bowl and clogged. Moreover, the adhesive layer of the sanitary napkin can be made wide enough to have a sufficient fixing force to the shorts. When the adhesive part is formed of an adhesive that peels between the layers, it is not necessary to subject the packaging material to a peeling treatment, and since the adhesive layer is also formed on the packaging material, it can be attached to underwear during use. The size of the packaging structure can be made small and it is compact, and there is no need to peel the individual packaging (packaging material) from the napkin and just remove the napkin from the solid packaging so that the release paper can pop out. There is no need to remove the napkin from the release paper with one touch.

[Brief description of drawings]

FIG. 1 (A) is a perspective view showing an embodiment of a packaging structure for a sanitary napkin according to the present invention, and FIG. 1 (B) is an I-of the packaging structure shown in FIG. 1 (A). It is an I'cross section.

FIG. 2 is a bottom view of the sanitary napkin shown in FIG.

FIG. 3 is a perspective view of the packaging material shown in FIG.

FIG. 4 (A) is a perspective view showing a mode in which the packaging structure shown in FIG. 1 is opened and a sanitary napkin is taken out, and FIG. 4 (B) corresponds to FIG. 4 (A). I- of the packaging structure shown
It is an I'cross section.

5 (A) is a perspective view showing a state in which the packaging structure shown in FIG. 1 is opened and the sanitary napkin is completely taken out, and FIG. 5 (B) is shown in FIG. 5 (A). 3 is a cross-sectional view taken along the line II ′ of the packaging structure shown in FIG.

FIG. 6 is a cross-sectional view [corresponding to FIG. 1 (B)] showing another embodiment of the packaging structure for the sanitary napkin of the present invention.

FIG. 7 is a cross-sectional view [corresponding to FIG. 1 (B)] showing another embodiment of the packaging structure for the sanitary napkin of the present invention.

FIG. 8 (A) is a perspective view 1 showing another embodiment of the packaging structure of the sanitary napkin of the present invention, and FIG. 8 (B) is
FIG. 9 is a cross-sectional view taken along the line II ′ of the packaging structure shown in FIG.

9 is a perspective view of the sanitary napkin and the packaging material shown in FIGS. 8 (A) and 8 (B).

FIG. 10 is a schematic perspective view showing an aspect of forming the packaging structure shown in FIGS. 8A and 8B.

FIG. 11 is a perspective view showing another embodiment of the sanitary napkin packaging structure of the present invention.

FIG. 12 is a bottom view of the sanitary napkin in the packaging structure shown in FIG. 11.

13 is a schematic perspective view showing a state in which the flap of the sanitary napkin shown in FIG. 12 is folded.

FIG. 14 shows the sanitary napkin shown in FIG.
It is a schematic perspective view which shows the aspect made into three folds.

[Explanation of symbols]

 1 Sanitary napkin packaging structure 10 Sanitary napkin 11 Skin contact surface 12 Non-skin contact surface 13 Front part 14 Central part 15 Rear part 16 Adhesive layer 17 Bent part 18 One side edge 20 Packaging material 21 Release paper 22 Fixing Part 23 Perforation 24 Side edge part 25 Edge part 26 Extraction port 27 End part

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Mutsumi Kuroda 3413-109 Ishiimachi, Utsunomiya City, Tochigi Prefecture (72) Hiroyuki Yokomatsu 24221-1, Moka City, Tochigi Prefecture

Claims (5)

[Scope of utility model registration request] 1. A sanitary napkin and a packaging material for packaging the sanitary napkin, an adhesive layer provided on a non-skin contact surface of the sanitary napkin, and a release paper fixed to an inner surface of the packaging material. In the packaging structure of the sanitary napkin, which is detachably adhered, the sanitary napkin is folded in the longitudinal direction to form a bent portion, and the side edge in the longitudinal direction of the sanitary napkin or the fold is formed. Along the curved portion, there is provided an outlet for the sanitary napkin formed by opening the packaging material, and the release paper is at least one surface of the inner surface of the packaging material, and the outlet is provided through the outlet. A plurality of sanitary napkin packaging structures, wherein a plurality of release papers are arranged toward the side opposite to the outlet, and the end of each release paper on the outlet side is fixed to the inner surface of the packaging material. . 2. The packaging structure for a sanitary napkin according to claim 1, wherein a plurality of the release papers are provided on each of two opposing inner surfaces of the packaging material. 3. The surface of the release paper, which is disposed on the side opposite to the outlet, faces the one surface from the central portion of one surface of the inner surface of the packaging material via the side opposite to the outlet. The packaging structure for the sanitary napkin according to claim 1, wherein the packaging structure extends to the central portion of the. 4. The sanitary napkin is a sanitary napkin having a napkin main body and a pair of flaps formed on both left and right side edge portions in the longitudinal direction of the napkin so as to extend outward in the respective width directions. The packaging structure for a sanitary napkin according to claim 1. 5. The sanitary napkin and the packaging material are folded together so that at least the non-skin contact surface of the sanitary napkin is brought into contact with the packaging material. The packaging structure for the sanitary napkin described.