JP2022163929A - absorbent article - Google Patents

Abstract

To provide an absorbent article capable of alleviating bad odor while disposing of a used absorbent article and in a dustbin after disposal.SOLUTION: An absorbent article 10 has: an absorbent article body 11; a perfume bag 21 provided on a back sheet 12 of the absorbent article body 11; and a post-treatment tape 30 integrated with the perfume bag 21. The post-treatment tape comprises three substantially rectangular longitudinally extending layers each having an adhesive layer on a skin contact surface side, namely, a first film 31, a second layer 33, and a third layer 35 stacked in this order from the skin contact surface side. The perfume bag 21 is substantially rectangular extending in a width direction, is joined to the absorbent article body 11, perpendicularly crosses and overlaps the post-treatment tape 30 in a region not laminated with the third film 35, of the second film 33. The perfume bag 21 has a nonwoven fabric 22 impregnated with perfume, a heat seal part 23, and cut lines 24.SELECTED DRAWING: Figure 3

Description

TECHNICAL FIELD The present invention relates to an absorbent article provided with a post-treatment tape with a perfume bag.

Absorbent articles generally consist of a liquid-permeable topsheet, a liquid-impermeable backsheet, and an absorbent body disposed between the topsheet and the backsheet, thereby absorbing urine and the like. Body fluids are absorbed into the absorbent through the topsheet. These absorbent articles come in various types, such as tape-type disposable diapers, underpants-type disposable diapers, incontinence pads, and light incontinence pads, depending on their uses.

In order to alleviate bad odor during post-treatment of used absorbent articles, for example, there is a method of spraying the absorbent article with a deodorant spray. However, it is troublesome to use the spray itself in nursing care sites where there is a lot of work, and it may be necessary to disinfect the spray itself after using the spray with the hand that touched the used absorbent article. .

On the other hand, a method is known in which the absorbent article itself is scented with perfume. For example, Patent Literature 1 discloses a water-soluble film containing perfume. In addition, Patent Document 2 discloses a method of putting microcapsules containing perfume into an absorber, which disintegrates when wet. Further, Patent Literature 3 discloses a method of mixing a fragrance into the adhesive layer of the post-treatment tape. Further, Patent Document 4 discloses a method in which an easy-to-open perfume bag attached to an individual package is opened at the same time when the wearer opens the individual package at the start of use.

Japanese Utility Model Laid-Open No. 63-100021 JP-A-59-106501 JP 2016-067912 A JP 2014-223129 A

Absorbent articles carrying fragrances are required to have a structure in which the fragrances do not volatilize or the effects of the fragrances do not disappear from the time the absorbent articles are made to carry the fragrances during the manufacturing process until they are actually used.
However, although the techniques of Patent Documents 1 and 2 are effective for watery urine, there is a problem that they are not effective for watery stool. In addition, in the technique of Patent Document 3, the fragrance generally permeates the adhesive and tends to reduce the adhesive strength, so when the product is stored for a long time, there is a possibility that the function as a post-treatment tape will be reduced. be.
Other methods such as using pressure-sensitive capsules are also conceivable, but since the product itself is soft in order to increase the cushioning properties of the absorbent article, the capsules are less likely to break, and the odor is sufficiently alleviated. There is a problem that a considerable amount of capsules is required to carry an amount of perfume on the absorbent article. In addition, although Patent Document 4 is epoch-making in terms of taking out the absorbent article, the fragrance triggers volatilization. It has the drawback that it is slow to volatilize and cannot be immediately scented when desired.
SUMMARY OF THE INVENTION It is an object of the present invention to provide an absorbent article capable of alleviating bad odors in trash cans during disposal of used absorbent articles and after disposal. is.

As a result of intensive research, the present inventors attached a perfume bag in which a perfume sheet is enclosed in a film bag to an absorbent article in an unsealable manner, further integrated the perfume bag with a post-treatment tape, The inventors have found that the bad smell in the trash can during disposal and after disposal of the used absorbent article can be alleviated by rolling up the used absorbent article for disposal, resulting in the present invention.

That is, the present invention provides an absorbent article having an absorbent article main body, a perfume bag provided in the back sheet of the absorbent article main body, and a post-treatment tape integrated with the perfume bag, Each of the post-treatment tapes has an adhesive layer on the skin-contacting surface side, and a substantially rectangular film extending in the longitudinal direction of the absorbent article is arranged from the skin-contacting surface side to form a first film, a second film, and a second film. Three sheets of the third film are laminated in order, the third film is bonded to one end of the second film in the longitudinal direction, and the longitudinal direction of the second film to which the third film is not bonded The first film is joined to the other end, and the post-treatment tape further has a knob on the side of the skin contacting surface of the free end of the third film that is not joined to the second film. A fourth film for forming is laminated, the perfume bag has a substantially rectangular shape extending in the width direction of the absorbent article, and the region of the second film where the third film is not laminated is the after It is joined to the absorbent article body so as to be orthogonal to and overlap the treatment tape, and the fragrance bag includes a nonwoven fabric impregnated with the fragrance contained in the fragrance bag and the second post-treatment tape. A heat-sealed portion formed at the time of bag making on three sides including the side facing the portion where the film and the third film are joined, and notches provided outside both ends in the width direction of the post-treatment tape. An absorbent article characterized by having lines.

The perfume bag may have laminated paper in which a sealant layer is laminated on aluminum foil.

ADVANTAGE OF THE INVENTION According to this invention, the absorbent article which can relieve|moderate the bad smell in the trash box at the time of processing of a used absorbent article, and after disposal can be provided.

1 is a plan view showing an embodiment of an absorbent article of the present invention; FIG. Fig. 2 is a plan view showing a post-treatment tape with a perfume bag; 3 is a cross-sectional view taken along line Y-Y' in FIG. 2; FIG. It is a figure which shows the state which expanded the 3rd film from FIG. It is a figure which shows the state which peeled the 2nd film from FIG. FIG. 6 is a plan view of FIG. 5 viewed from the fragrance bag side; Fig. 2 is a perspective view showing a state in which the absorbent article is rolled up and taped with an adhesive layer;

Embodiments of the present invention will now be described in detail with reference to the accompanying drawings, which are given for the purpose of illustration and are not intended to limit the invention.

Moreover, in the description of this specification, when the absorbent article 10 is worn means at least one of when the absorbent article 10 is worn and after the absorbent article 10 is worn. The longitudinal direction of the absorbent article 10 is the direction that spans the front and back of the wearer when the absorbent article 10 is worn, and is the direction indicated by symbol Y in the drawing. Further, the width direction of the absorbent article 10 is a direction that is transverse or perpendicular to the longitudinal direction, and is the direction indicated by symbol X in the drawing. Further, the skin-contacting surface is the surface of the front and back surfaces of each member such as the absorbent body, which faces the wearer's skin when worn, and the non-skin-contacting surface is the surface of each member such as the absorbent body. Of the front and back surfaces, this is the surface facing away from the wearer's skin when worn. Body fluids refer to liquids excreted from the body to the outside of the body, such as urine, blood, and water in soft stools. Further, examples of the absorbent article 10 include, but are not limited to, light incontinence pads, pants-type paper diapers, and tape-fastened paper diapers, regardless of whether they are for babies or adults. There may be.

<Absorbent article>
One embodiment of the absorbent article 10 of the present invention will be described.
As shown in FIGS. 1 and 2, an absorbent article 10 according to one embodiment of the present invention includes an absorbent article main body 11, a perfume bag 21 provided on a back sheet 12 of the absorbent article main body 11, and a perfume bag. 21 and a post-treatment tape 30 (the integrated one is hereinafter referred to as a perfume bag-attached post-treatment tape 20). Specifically, the post-treatment tape 20 with a perfume bag is provided on the non-skin contact side of the back sheet 12 .

<Post-treatment tape with fragrance bag>
In this embodiment, as shown in FIG. 1, the post-treatment tape 20 with a perfume bag is placed on the absorbent article main body 11 at a position on the abdominal side when worn (the end on the right side of the paper surface is on the abdominal side of the absorbent article main body 11). shows the end). When the post-treatment tape 20 with a perfume bag is attached to the back side, a slight step may cause discomfort, and especially for elderly people, a slight step may cause bedsores. Since the post-treatment tape 20 with perfume bag is attached to the abdominal side of the absorbent article main body 11 as in the present embodiment, such discomfort does not occur. Furthermore, since the post-treatment tape 20 with fragrance bag is attached to the ventral side, after use, when the caregiver or the like turns over the outer layer such as the tape stop, the post-treatment tape 20 with fragrance bag can be immediately visually recognized and opened. It also has the advantage of being easy to use. By volatilizing the perfume at the first stage of changing the diaper, the unpleasantness caused by the bad smell during the operation is alleviated. Moreover, since it can be easily performed, it does not become a new work burden.
The configuration of each of the perfume bag 21 and the post-treatment tape 30 in the post-treatment tape 20 with perfume bag will be described below.

<perfume bag>
2 is a plan view showing the post-treatment tape 20 with a perfume bag, and FIG. 3 is a cross-sectional view taken along line YY' in FIG. As shown in FIGS. 2 and 3, the perfume bag 21 has a substantially rectangular shape extending in the width direction of the absorbent article 10, and contains a perfume-impregnated nonwoven fabric 22 contained in the perfume bag 21 and a post-treatment. From the heat-sealed portions 23 formed at the time of bag making on three sides including the side facing the portion of the tape 30 where the second film 33 and the third film 35 are joined, and from both width direction ends of the post-treatment tape 30 and score lines 24 respectively provided on the outside.
The main body of the perfume bag 21 is formed by folding the laminated paper 25 and heat-sealing the three sides. , 10 mm or more and 20 mm or less, and the dimension in the width direction is preferably 60 mm or more and 100 mm or less. Moreover, the dimension in the width direction of the heat-sealed portion 23 is preferably 3 mm or more and 15 mm or less from the viewpoint of preventing unsealing by an unintended force.
Furthermore, the heat seal portion 23 is provided with cut lines 24 outside both width direction end portions of the post-treatment tape 30 to trigger the opening of the fragrance bag 21 . It is preferable that the MD direction of the paper base material of the laminated paper 25 coincides with the direction of the cut line 24 so that the cut line 24 can be cut straight without meandering when the fragrance bag 21 is opened. Moreover, the length of the cut line 24 should be 2 mm or more.

(laminated paper)
The material of the laminated paper 25 is not particularly limited as long as it is a paper base material that can confine the fragrance impregnated in the non-woven fabric 22 inside the perfume bag 21. However, laminated paper in which a sealant layer is laminated on an aluminum foil is used. Preferably, an aluminum foil having a thickness of 7 μm or more and 12 μm or less is laminated on a paper base material having a basis weight of 30 g/m ² or more and 150 g/m ² or less via a low-density polyethylene layer having a thickness of 15 μm or more and 30 μm or less, and further It is preferable that a low-density polyethylene layer having a thickness of 20 μm or more and 65 μm or less is laminated on the aluminum foil.
Since the aluminum foil is laminated with a thickness of 7 μm or more and 12 μm or less, volatilization of the flavor can be suppressed until the flavor bag 21 is opened. Further, the basis weight of the paper substrate is more preferably 40 g/m ² or more and 60 g/m ² or less. If the basis weight is within the above range, the paper base material is not too stiff, and even if it is attached to the absorbent article 10, it is not too hard, and tearing of the aluminum foil can be prevented. Furthermore, it is more preferable that the low-density polyethylene laminated on the aluminum foil has a thickness of 30 μm or more and 40 μm or less.

As the sealant layer, a resin that is usually used as a sealant layer can be used. For example, low density polyethylene (LDPE), unstretched polypropylene (CPP), linear low density polyethylene (LLDPE), ethylene acrylic acid copolymer (EAA), ethylene vinyl acetate copolymer (EVA), ionomer (IO), etc. Available. Although it is preferable to use low-density polyethylene as described above for laminating the paper base material and the aluminum foil, the resin used as the sealant layer can also be used in the same manner.

(perfume sheet)
The non-woven fabric 22 is a non-woven fabric impregnated with a perfume, but as a material, in addition to the high perfume-absorbing power, a spunlace non-woven fabric is used in consideration of the flexibility required when opening the perfume bag 21, which will be described later. , preferably an air-laid nonwoven fabric.
Further, the nonwoven fabric 22 is pulled out by opening the perfume bag 21 (expanding the post-treatment tape 30), which will be described later. Therefore, the length in the width direction of the nonwoven fabric 22 should be 30 mm or more longer than the sum of twice the distance between the end portion C of the perfume bag and the second joint portion B shown in FIG. is preferred. If the length is less than 30 mm, the nonwoven fabric 22 may completely come out of the perfume bag 21 and fall off the absorbent article 10 .

(perfume)
As the perfume with which the nonwoven fabric 22 is impregnated, either natural perfume or synthetic perfume may be used. Among them, it is preferable to use one having a masking effect, particularly a harmonizing effect, on the odor of excrement.
Specific examples of fragrances include natural fragrances such as aryang incense, benzoin incense, castor incense, spirit incense, clove oil, galbanum, jasmine absolute, melilot, mimosa, musk tonquin, rosemary oil, sandalwood oil, vetiver oil, violet leaf absolute. Fragrance extracts, higher alcohols, aldehydes, benzaldehyde, benzoic acid, cinnamic acid, cinnamic aldehydes, cinnamic alcohols, esters, ketones, salicylic acid and related compounds, various synthetic fragrances such as vanillin, or mixtures of two or more of these Commercially available products can be widely used as fragrances.

Preferably, the nonwoven fabric 22 is impregnated with 10 mg or more and 50 mg or less of the perfume.

(Adhesive layer for fragrance bag)
The perfume bag 21 is attached to the absorbent article main body 11 through the perfume bag adhesive layer 26 so as to be perpendicular to and overlaid on the post-treatment tape 30 in the region of the second film 33 where the third film 35 is not laminated. is joined to Specifically, only the portion crossing the post-treatment tape 30 is joined to the second film 33 , and the other portion is joined to the back sheet 12 of the absorbent article main body 11 . Therefore, the second film 33 of the post-treatment tape 30 functions as a cut tape when opening the perfume bag 21, which will be described later. The perfume bag adhesive layer 26 preferably uses the same adhesive as the first adhesive layer 32 to the third adhesive layer 36, which will be described later.

<Post-processing tape>
As shown in FIG. 3, each of the post-treatment tapes 30 has an adhesive layer on the skin-contacting side, and a substantially rectangular film extending in the longitudinal direction of the absorbent article 10 extends from the skin-contacting side. Three sheets of the first film 31, the second film 33 and the third film 35 are laminated in this order.
Specifically, the third film 35 is bonded to one end of the second film 33 in the longitudinal direction via the second adhesive layer 34 and the third adhesive layer 36 (first bonding portion A), and the second The first film 31 is bonded via the first adhesive layer 32 and the second adhesive layer 34 to the other end of the film 33 in the longitudinal direction to which the third film 35 is not bonded (the second bonding portion B). The effect of such a configuration will be described later in the description of the method of use.

The post-treatment tape 30 functions as an opening tape in opening the perfume bag 21, which will be described later. Therefore, any one of the first film 31 to the third film 35 should have no elongation and have appropriate strength. Therefore, the material of the first film 31 to the third film 35 includes a film obtained by blending polypropylene and polypropylene, a polyethylene terephthalate film, and the like.

As the adhesive used for the first adhesive layer 32 to the third adhesive layer 36, known adhesives can be used. Examples of adhesives include acrylic adhesives, rubber adhesives, urethane adhesives, and silicone adhesives. The coating amount of each of the first adhesive layer 32 to the third adhesive layer 36 is preferably 10 g/m ² or more and 50 g/m ² or less. In addition, the surface opposite to the surface on which the adhesive is applied (the surface on which the first adhesive layer 32 to the third adhesive layer 36 are provided) of the first film 31 to the third film 35 is subjected to a release treatment such as silicone coating. can be applied.

(Knob part)
The post-treatment tape 30 is further provided with a third adhesive layer 36 interposed between the third film 35 and the free end portion of the third film 35 that is not joined to the second film 33, on the side of the skin contacting surface, to form a knob portion 40. A fourth film 37 is laminated.
By laminating the fourth film 37 on part of the adhesive layer (third adhesive layer 36 ) of the third film 35 in this way, part of the third adhesive layer 36 is covered, and the post-treatment tape 30 can be picked up. It becomes part 40 . Although the material of the fourth film 37 may be the same as that of the other films, it is preferable that the fourth film 37 be colored in order to make the knob portion 40 easier to see.

<Absorbent article main body>
The absorbent article main body 11 has a back sheet 12, an absorbent body (not shown), and a top sheet (not shown) from the non-skin contact side.

(back seat)
The back sheet 12 can be a known one, and is preferably formed using a liquid-impermeable base material such that the body fluid retained by the absorbent body does not wet the clothes, and a resin film. or a composite sheet obtained by laminating a resin film and a non-woven fabric. The nonwoven fabric used for the composite sheet is not particularly limited in manufacturing method, and examples thereof include spunbond nonwoven fabrics, meltblown nonwoven fabrics, laminated composite nonwoven fabrics such as spunbond/meltblown or spunbond/meltblown/spunbond, and composite materials thereof. be done. Examples of resin films include polyester, polyvinyl alcohol, polyethylene, polypropylene, composite films of polyethylene and polypropylene, and the like.

(Absorber)
A well-known thing can be used as an absorber. Examples include those containing fluff pulp and superabsorbent polymers.

Examples of fluff pulp include wood pulp (for example, bleached softwood kraft pulp (N-BKP) such as southern pine and Douglas fir), synthetic fiber, resin fiber, non-wood pulp, etc., which are defibrated into cotton. can.

The superabsorbent polymer is not particularly limited as long as it can absorb body fluids and prevent backflow. Sodium polyacrylate, polyaspartate, (starch-acrylic acid) graft copolymer, Those formed from materials such as (acrylic acid-vinyl alcohol) copolymers, (isobutylene-maleic anhydride) copolymers and saponified products thereof can be used. Among these, the sodium polyacrylate type is preferable from the viewpoint of the absorption amount per weight.

The form of the fluff pulp and the superabsorbent polymer in the absorbent body may be one formed by mixing superabsorbent polymer particles in the fluff pulp, and a superabsorbent polymer in which the superabsorbent polymer particles are fixed between the fluff pulp. It can be a sheet. For the purpose of preventing leakage of the superabsorbent polymer particles and stabilizing the shape of the absorbent body, the absorbent body may be wrapped in a carrier sheet. The base material of the carrier sheet may be any material as long as it is hydrophilic, and examples thereof include hydrophilic nonwoven fabrics such as tissues, absorbent paper, and air-laid nonwoven fabrics. When a plurality of carrier sheets are provided, the substrates of the plurality of carrier sheets may be the same or different.

(top sheet)
A known top sheet can be used as the top sheet. The topsheet is preferably made of a liquid-permeable nonwoven fabric that allows body fluids to migrate to the absorbent body. The bodily fluid that flows out onto the top sheet diffuses into the absorbent material and is quickly absorbed by the absorbent material. The top sheet is made of materials such as nonwoven fabrics such as air-through nonwoven fabrics, thermal bonded nonwoven fabrics, spunbond nonwoven fabrics, thermal bond/spunbond two-layer laminated composite nonwoven fabrics, foamed films such as urethane foam, or composite sheets in which these are laminated. preferably formed. In addition, the top sheet may be embossed or perforated on the surface in order to improve liquid permeability. As a method for applying these embossing and perforating processes, known methods can be implemented without limitation. In order to reduce skin irritation, the top sheet may contain a lotion, an antioxidant, an anti-inflammatory component, a pH adjuster, an antibacterial agent, a moisturizing agent, and the like.

<How to use>
The absorbent article 10 of the present invention is used as follows.
First, the pinched portion 40 is pinched with fingers, and as shown in FIG. The third film 35 is peeled off from the first film 31. After that, when the other end of the perfume bag 21 is reached by peeling it off, the opening of the perfume bag 21 is started with the cut line 24 as a trigger. At this time, the nonwoven fabric 22 inside the fragrance bag 21 is twisted in the direction of travel (direction parallel to the Y axis). Even if the nonwoven fabric 22 is stretched in the direction perpendicular to the post-treatment tape 30 (the X-axis direction), the unsealing proceeds as it is. Therefore, the nonwoven fabric 22 to be impregnated with the fragrance must be soft, and the spunlace nonwoven fabric and the air-laid nonwoven fabric are most suitable for the absorbent article 10 of the present invention because they have high fragrance absorption and are flexible. . On the other hand, since paper has rigidity, it hinders opening of the fragrance bag 21 . Therefore, it is not appropriate to enclose a sheet of paper or the like impregnated with a perfume.
Then, when the second film 33 and the first film 31 are completely peeled off, as shown in FIG. 5, the third adhesive layer 36 faces the surface direction (skin contact surface side) of the absorbent article 10, so post-processing is not required. While functioning as the tape 30, as shown in FIG. will evaporate quickly.

Furthermore, in the absorbent article 10 of the present invention, since the post-treatment tape 30 of the post-treatment tape 20 with a perfume bag has a role of a tape, the second film 33 and the first film 31 are peeled off as described above, and the perfume bag is attached. After pulling out the nonwoven fabric 22 from 21, as shown in FIG. 7, the third adhesive layer 36 of the post-treatment tape 30 is directly attached to the back sheet 12, the absorbent article 10 is rolled up, and the ends of the absorbent article 10 are taped. can do. In this way, while the perfume bag 21 is opened and the fragrance is volatilized, the top sheet side is rolled up and taped with the post-treatment tape 30, so that the used absorbent article 10 can be treated and disposed. Bad odors in the trash can can be alleviated.

Although the present invention has been described using the embodiments, it goes without saying that the technical scope of the present invention is not limited to the scope described in the above embodiments and examples. It is obvious to those skilled in the art that various modifications or improvements can be made to the above embodiments. In addition, it is clear from the description of the scope of the claims that forms with such modifications or improvements can also be included in the technical scope of the present invention.

REFERENCE SIGNS LIST 10 absorbent article 11 absorbent article main body 12 back sheet 20 post-treatment tape with perfume bag 21 perfume bag 22 non-woven fabric 23 heat-sealed portion 24 cut line 25 laminated paper 26 adhesive layer for perfume bag 30 post-treatment tape 31 first film 32 second First Adhesive Layer 33 Second Film 34 Second Adhesive Layer 35 Third Film 36 Third Adhesive Layer 37 Fourth Film 40 Pick Part A First Joining Part B Second Joining Part C Perfume Bag End

Claims (2)

An absorbent article comprising an absorbent article body, a perfume bag provided in the back sheet of the absorbent article body, and a post-treatment tape integrated with the perfume bag,
Each of the post-treatment tapes has an adhesive layer on the skin-contacting surface side, and a substantially rectangular film extending in the longitudinal direction of the absorbent article is divided into a first film, a second film and a second film from the skin-contacting surface side. Three films are laminated in order of the third film,
The third film is joined to one end in the longitudinal direction of the second film,
The first film is joined to the other end of the second film in the longitudinal direction to which the third film is not joined,
In the post-treatment tape, a fourth film for forming a knob portion is laminated on the side of the skin contacting surface of the free end of the third film that is not joined to the second film,
The perfume bag has a substantially rectangular shape extending in the width direction of the absorbent article, and is orthogonal to and overlaps with the post-treatment tape in a region of the second film where the third film is not laminated. is joined to the absorbent article body in
The perfume bag has three sides including a non-woven fabric impregnated with the perfume contained in the perfume bag and a side facing the part where the second film and the third film of the post-treatment tape are joined. a heat-sealed portion formed at the time of bag making, and cut lines respectively provided outside width direction end portions of the post-treatment tape. 2. The absorbent article according to claim 1, wherein said fragrance bag comprises laminated paper in which a sealant layer is laminated on aluminum foil.

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