JP7275070B2 - Absorbent article package - Google Patents

Description

The present invention relates to absorbent article packages.

Absorbent articles such as sanitary napkins are generally sold in a shape folded together with a wrapping material so that the surface that contacts the wearer's skin faces inward. When the absorbent article is unfolded from the folded state, there has been a problem that the absorbent article is wrinkled along the folding line at the time of packaging. Therefore, in the absorbent article of Patent Literature 1, a fiber mass (fiber aggregate) is arranged in the absorbent core so as to straddle the folding line at the time of packaging. The fiber clumps enhance the cushioning properties (compression recoverability) of the absorbent core along the folding lines, and prevent creases from forming.

JP 2019-97612 A

One of the reasons why the absorbent article is wrinkled is that the wrapping material is folded so as to press the absorbent article at the curved portion of the folded portion, and the absorbent article is likely to be wrinkled. Therefore, there is room for improvement in the relationship between the packaging material and the absorbent article in order to prevent the absorbent article from wrinkling during packaging.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide an absorbent article in which creases during packaging are reduced.

The main invention for achieving the above object is
An absorbent article package comprising an absorbent article and a packaging material, wherein the absorbent article is folded together with the packaging material at a folding portion,
An article-side adhesive portion is provided on the non-skin side of the absorbent article,
whether the absorbent article is directly fixed to the packaging material at the article-side adhesive portion;
Alternatively, a release paper is fixed to the article-side adhesive portion, the packaging material is fixed to the paper-side adhesive portion provided on the release paper, and the absorbent article is fixed to the packaging material via the release paper. and
At least one of the article-side adhesive portion and the paper-side adhesive portion has a first adhesive portion and a second adhesive portion spaced apart in a predetermined direction,
Between the first adhesive portion and the second adhesive portion, the folding portion orthogonal to the predetermined direction is provided,
When the region of the packaging material to which the first adhesive portion is fixed is defined as a first region, and the region of the packaging material to which the second adhesive portion is fixed is defined as a second region,
The second area side of the first area in the predetermined direction in a first state in which the absorbent article package is unfolded and the absorbent article package is stretched while the absorbent article is fixed. The separation distance in the predetermined direction between the end and the end of the second region on the side of the first region in the predetermined direction is
In a second state in which the absorbent article package is unfolded and the packaging material from which the absorbent article is removed is stretched, the end of the first area on the side of the second area in the predetermined direction and the end of the second area in the predetermined direction shorter than the separation distance in the predetermined direction between the ends of the two regions on the first region side in the predetermined direction,
The absorbent article package has a first portion folded in the predetermined direction by the folding portion and a second portion overlapping the first portion,
The second part is a part having the same layer structure as the first part, in which the absorber is not arranged,
When the maximum thickness of the first portion and the second portion is t,
The absorbent article package is characterized in that a difference between the separation distance in the first state and the separation distance in the second state is πt/2−t or more.
Other features of the present invention will become apparent from the description of the specification and accompanying drawings.

ADVANTAGE OF THE INVENTION According to this invention, the absorbent article with which the crease at the time of packaging was reduced can be provided.

Fig. 2 is a plan view of the absorbent article package 10 in an unfolded state as seen from the inside. Fig. 2 is a plan view of the absorbent article package 10 in an unfolded state as seen from the outside. 1 is a schematic cross-sectional view of the sanitary napkin 1 along the front-rear direction; FIG. 4A is a plan view of the absorbent article package 10 in the process of being unfolded, and FIG. 4B is a plan view of the absorbent article package 10. FIG. FIG. 3 is an explanatory diagram of a warming agent arrangement region 301; FIG. 4 is an explanatory diagram of a flavoring agent disposition area 311; FIG. 4 is an explanatory diagram of a fixing region 15 of the paper-side adhesive portion 14 in a first state; FIG. 10 is an explanatory diagram of a fixing region 15 of the paper-side adhesive portion 14 in a second state; FIG. 11 is an explanatory diagram of a fixing region 16 of the anti-slip portion 8 in a second state; 4 is an explanatory diagram of folding portions F1 and F2 of the individual package 10; FIG. It is the top view which looked at the individual package 10 of the modified example of the unfolded state from the inside.

At least the following matters will become apparent from the descriptions of this specification and the accompanying drawings.
An absorbent article package comprising an absorbent article and a packaging material, wherein the absorbent article is folded together with the packaging material at a folding portion, wherein the non-skin side of the absorbent article has an article side An adhesive portion is provided, and the absorbent article is directly fixed to the packaging material at the article-side adhesive portion, or a release paper is fixed to the article-side adhesive portion and provided on the release paper. The packaging material is fixed to the paper-side adhesive portion, the absorbent article is fixed to the packaging material via the release paper, and at least one of the article-side adhesive portion and the paper-side adhesive portion is attached. has a first adhesive portion and a second adhesive portion that are spaced apart in a predetermined direction, and between the first adhesive portion and the second adhesive portion is the folded portion perpendicular to the predetermined direction. A portion is provided, and the region of the packaging material to which the first adhesive portion is fixed is defined as a first region, and the region of the packaging material to which the second adhesive portion is fixed is defined as a second region. The separation in the predetermined direction between the first region and the second region in a first state in which the absorbent article package is unfolded and the absorbent article package is stretched while the absorbent article is fixed. A distance is a separation in the predetermined direction between the first region and the second region in a second state in which the absorbent article package is unfolded and the packaging material from which the absorbent article is removed is stretched. An absorbent article package characterized by being shorter than the distance.

According to such an absorbent article package, the wrapping material can be loosened with respect to the absorbent article, the package and release paper can be loosened with respect to the absorbent article, and the absorbent can be The wrapping material can be slackened against the article and the release paper. Therefore, it is possible to prevent the wrapping material from strongly pressing the absorbent article at the folded portion, and to reduce creases caused by the folded portion.

In such an absorbent article package, when the maximum thickness of the portion of the absorbent article package overlapping the portion of the absorbent article package folded in the predetermined direction by the folding portion is t, The absorbent article package is characterized in that a difference between the separation distance in the first state and the separation distance in the second state is πt/2−t or more.

According to such an absorbent article package, the curved portion of the absorbent article bulging outward can be covered with the wrapping material at the folded portion, and it is possible to prevent the wrapping material from strongly pressing the absorbent article. . Therefore, creases caused by the folded portion can be reduced.

This absorbent article package is characterized in that the difference between the separation distance in the first state and the separation distance in the second state is πt-2t or more. .

According to such an absorbent article package, the curved portion of the absorbent article bulging outward can be covered with the wrapping material at the folded portion, and it is possible to prevent the wrapping material from strongly pressing the absorbent article. . Therefore, creases caused by the folded portion can be reduced.

This absorbent article package is characterized in that a difference between the separation distance in the first state and the separation distance in the second state is πt or less.

According to such an absorbent article package, it is possible to prevent the packaging material from being unnecessarily loosened at the folded portion, and it is possible to suppress deterioration of the appearance of the individual package.

In such an absorbent article package, when the maximum thickness of the portion of the absorbent article package overlapping the portion of the absorbent article package folded in the predetermined direction by the folding portion is t, The absorbent article package is characterized in that the separation distance in the first state is πt or more.

According to such an absorbent article package, it is possible to prevent the first adhesive portion and the second adhesive portion from being positioned at the folded portion. Therefore, the packaging material can be loosened at the folded portion, and fold wrinkles can be reduced.

In this absorbent article package, the absorbent article has an arrangement area in which an agent that exhibits a predetermined function is arranged, and when the absorbent article package in the first state is viewed from above, The absorbent article package is characterized in that the folding portion between the first adhesive portion and the second adhesive portion does not overlap the arrangement area.

According to such an absorbent article package, the fiber of the material constituting the absorbent article does not sag at the folded portion due to the agent, and the cushioning property of the absorbent article is maintained. It can reduce wrinkles.

In such an absorbent article package, when the absorbent article package in the first state is viewed from above, the folded portion between the first adhesive portion and the second adhesive portion is equal to the thickness of the napkin. An absorbent article package characterized by having a region that overlaps with a portion that changes length.

According to such an absorbent article package, the absorbent article can be easily folded at the folded portion and neatly folded back, so that wrinkles at the folded portion can be reduced.

In this absorbent article package, when the absorbent article package in the first state is viewed from above, the folded portion between the first adhesive portion and the second adhesive portion is the first adhesive. The absorbent article packaging body is characterized in that the release paper covering the part and the second adhesive part, respectively, do not overlap each other.

According to such an absorbent article package, the release paper does not strongly press the absorbent article at the folded portion, and wrinkles at the folded portion can be reduced.

In this absorbent article package, the absorbent article has an absorbent body and a liquid-impermeable sheet disposed on the non-skin side of the absorbent body, and the absorbent article is arranged in the predetermined direction. The absorbent article package is characterized in that the tensile strength of the material is higher than the tensile strength of the sheet in the predetermined direction.

According to such an absorbent article package, even when the absorbent article is folded in a predetermined direction using a packaging material that is difficult to stretch in a predetermined direction, creases can be reduced by loosening the wrapping material at the folded portion. .

In this absorbent article package, the absorbent article has a width direction and a longitudinal direction, and both sides of the absorbent article in the width direction are folded at the folding portions along the longitudinal direction. and both ends of the absorbent article in the longitudinal direction are folded at the folding portions along the width direction.

According to such an absorbent article package, even if the number of folds is large, the folds are reduced by loosening the wrapping material at the folds, thereby making the folds inconspicuous. can be done.

In this absorbent article package, the folding portion between the first adhesive portion and the second adhesive portion is the folding portion along the longitudinal direction, and the folding portion along the width direction is: The absorbent article package straddles the adhesive portion.

According to such an absorbent article package, conspicuous long creases along the longitudinal direction can be reduced. On the other hand, the adhesive part can be provided continuously in the longitudinal direction, so that the release paper can be firmly fixed to the packaging material, or the absorbent article can be firmly fixed to the underwear.

In this absorbent article package, the absorbent article has a width direction and a longitudinal direction, and has a compressed portion recessed in the thickness direction of the absorbent article, and the compressed portion is the absorbent article. an indicator compressed portion showing the front and rear in the longitudinal direction, which is visible from the skin surface side of the product, and the indicator compressed portion straddles the folding portion between the first adhesive portion and the second adhesive portion. It is an absorbent article characterized by being in.

According to such an absorbent article package, the absorbent article can be easily worn in the correct front-to-rear direction. In addition, it is possible to prevent deterioration of the visibility of the pressed display portion due to wrinkles caused by the folded portion.

In this absorbent article package, the absorbent article has a width direction and a longitudinal direction, and has a compressed portion recessed in the thickness direction of the absorbent article, and the compressed portion is the absorbent article. an indicator compressed portion showing the front and rear in the longitudinal direction, which is visible from the skin surface side of the product, and the indicator compressed portion straddles the folding portion between the first adhesive portion and the second adhesive portion. It is an absorbent article characterized in that it is not

According to such an absorbent article package, the absorbent article can be easily worn in the correct front-to-rear direction. In addition, the folded portion can be easily unfolded by the display pressing portion straddling the folded portion, and the flatness of the absorbent article at the time of unfolding can be improved.

Hereinafter, a sanitary napkin will be described as an example of absorbent articles included in the absorbent article package according to the present embodiment. However, absorbent articles are not limited to sanitary napkins, and other absorbent articles include, for example, panty liners and incontinence pads.

===Basic configuration of the absorbent article package 10===
FIG. 1 is a plan view of an absorbent article package 10 in an unfolded state viewed from the inside. FIG. 2 is a plan view of the absorbent article package 10 in an unfolded state as seen from the outside. FIG. 3 is a schematic cross-sectional view along the front-rear direction of the sanitary napkin 1 (hereinafter also referred to as "napkin"). 4A is a plan view of the absorbent article package 10 in the process of unfolding, and FIG. 4B is a plan view of the absorbent article package 10. FIG.

An absorbent article package 10 (hereinafter also referred to as “individual package”) includes a napkin 1 , a packaging material 11 , a fastening tape 12 and a release paper 13 . As shown in FIG. 1, the napkin 1 is placed on the inner surface of the packaging material 11 with the skin side facing up, and the napkin 1 is folded together with the packaging material 11 at the folding portions F1 to F4.

The napkin 1 has a front-rear direction (longitudinal direction), a width direction, and a thickness direction which are orthogonal to each other. In the front-rear direction, the side facing the wearer's abdomen is the front side, and the side facing the wearer's back is the rear side. The side in the thickness direction that contacts the wearer's skin is the skin side, and the opposite side is the non-skin side.

The packaging material 11 has a longitudinal direction and a width direction perpendicular to each other. The longitudinal direction of the packaging material 11 corresponds to the front-rear direction of the napkin 1 , and the width direction of the packaging material 11 corresponds to the width direction of the napkin 1 . The side of the packaging material 11 to which the fastening tape 12 is attached (that is, the side of the unsealed end 10a of the individual package 10) corresponds to the front side of the napkin 1. As shown in FIG.

The package 10 has two folds F1 and F2 along the front-rear direction of the napkin 1 and two folds F3 and F4 along the width of the napkin 1 as folding portions for packaging. Both sides of the napkin 1 in the width direction are folded by folding portions F1 and F2 extending in the front-rear direction so as to overlap the central portion. Moreover, the napkin 1 is folded so that the front and rear portions of the napkin 1 are overlapped with the central portion by the folding portions F3 and F4 along the width direction.

When the napkin 1 is used, when the wearer grips the fastening tape 12 and unfolds the folds F3 and F4 along the width direction of the individual package 10, the individual package 10 is in the state shown in FIG. 4A. . Further, when the wearer unfolds the folding portions F1 and F2 along the front-rear direction, the individual package 10 is unfolded as shown in FIG.

Next, the basic configuration of the napkin 1 will be described. The napkin 1 has an absorbent body 2, a skin-side sheet 3, an intermediate sheet 4, a non-skin-side sheet 5, a pair of side sheets 6, and a warming agent holding sheet 7 on which a warming agent 30 is arranged.

The skin-side sheet 3 is a liquid-permeable sheet arranged closer to the skin than the absorbent body 2 . The intermediate sheet 4 is a liquid-permeable sheet arranged between the skin-side sheet 3 and the absorbent body 2 . Examples of liquid-permeable sheets include non-woven fabrics and perforated films. The non-skin-side sheet 5 is a liquid-impermeable sheet arranged on the non-skin side of the absorbent body 2 (absorbent core). As the non-skin-side sheet 5, a synthetic resin film or the like can be exemplified. By using an impermeable sheet such as a synthetic resin film as the non-skin side sheet 5, the air warmed by the effect of the warming agent 30 is less likely to dissipate. The side sheets 6 are sheets extending outward from both sides in the width direction of the skin side surface of the skin side sheet 3 . As the side sheet 6, the same soft nonwoven fabric as the skin side sheet 3, hydrophobic nonwoven fabric, or the like can be exemplified. The warming agent holding sheet 7 is not particularly limited as long as it is a sheet capable of holding the warming agent 30, and examples thereof include non-woven fabric.

The absorbent body 2 has an absorbent core and a liquid-permeable core wrap sheet covering the absorbent core. Examples of the absorbent core include liquid absorbent fibers such as pulp fibers and cellulosic absorbent fibers added with a super absorbent polymer (SAP) and formed into a predetermined shape. Note that the absorbent body may not have a core wrap sheet.

The napkin 1 is divided in the front-rear direction into a front region 1A on the front side of the front end 2a of the absorbent body 2 and a rear region 1B on the rear side of the front region 1A. The warming agent holding sheet 7 is mainly arranged in the front region 1A. In the napkin 1 illustrated in FIG. 1, the rear end portion of the warming agent holding sheet 7 overlaps the front end portion of the absorbent body 2 and is arranged in the rear region 1B. However, the present invention is not limited to this, and the rear end of the warming agent holding sheet 7 may be in contact with the front end 2a of the absorbent body 2 or may be spaced forward.

As shown in FIG. 2, the warming agent holding sheet 7 of this embodiment is constructed by laminating three sheets in the thickness direction. The warming agent holding sheet 7 is arranged on the non-skin side of the intermediate sheet 4 and the absorbent body 2 and on the skin side of the non-skin-side sheet 5 . However, it is not limited to the above, and the warming agent holding sheet 7 may be composed of one sheet, or may be composed of a plurality of sheets other than three laminated sheets.

The rear region 1B of the napkin 1 has a generally general sanitary napkin shape, and has a pair of wing portions 1w extending outward in the width direction at the central portion in the front-rear direction. The wing portion 1 w is formed by the side sheet 6 and the non-skin side sheet 5 . Further, in the rear region 1B, it is assumed that a region slightly forward in the front-back direction (the center of the wing portion 1w in the front-back direction) contacts the wearer's excretory opening. Note that the napkin may not have wings.

The shape of the front region 1A of the napkin 1 is not particularly limited. is mentioned. The front region 1A of this embodiment has a width larger than the maximum width of the rear region 1B excluding the pair of wing portions 1w. The front region 1A has a substantially triangular shape with a width that narrows from the front end to the rear end. The warming agent holding sheet 7 also has a substantially triangular shape similar to the shape of the front region 1A reduced. However, it is not limited to the above, and the warming agent holding sheet 7 may have, for example, a rectangular shape or the like, and may have a shape different from that of the front region 1A.

The napkin 1 has a non-skin side (that is, the non-skin side of the non-skin-side sheet 5) provided with a non-slip portion 8. - 特許庁The anti-slip part 8 is an adhesive part (article side adhesive part) to which adhesive is applied, and as shown in FIG. have.

The central non-slip portion 81 is for attaching the body portion of the napkin 1 to the inner surface of the underwear, and is provided at the central portion in the width direction of the napkin 1 from the front to the rear of the napkin 1 . In the central anti-slip portion 81, eight rectangular adhesive portions having long sides in the front-rear direction are arranged at intervals in the width direction.

The front anti-slip portions 82 are for sticking both ends in the width direction of the wide front region 1A to the inner surface of the underwear, and are provided on both sides in the width direction of the front region 1A. In each front non-slip portion 82, three rectangular adhesive portions having long sides in the front-rear direction are arranged at intervals in the width direction. The front anti-slip portion 82 has a shorter length in the front-rear direction than the central anti-slip portion 81 . Further, the front anti-slip portion 82 is arranged so as to extend forward from the central anti-slip portion 81 while partially overlapping with the central anti-slip portion 81 in the front-rear direction.

The wing anti-slip portion 83 is for sticking the wing portion 1w folded back to the outside of the underwear to the outer surface of the underwear, and is provided on each of the pair of wing portions 1w. In each wing anti-slip portion 83, three rectangular adhesive portions having long sides in the front-rear direction are arranged at intervals in the width direction.
It should be noted that the shape, number, and arrangement positions of the anti-slip portions 81 to 83 are not limited to those illustrated in FIG.

Also, the individual package 10 has a release paper 13 . The release paper 13 is releasably fixed to the anti-slip portion 8 on the non-skin side of the napkin 1 . Further, on the surface of the release paper 13 facing the packaging material 10, a paper-side adhesive portion 14 (see FIG. 7, which will be described later) coated with an adhesive is provided. The packaging material 11 is fixed to the release paper 13 at the paper-side adhesive portion 14 thereof. That is, in the individual package 10 of this embodiment, the napkin 1 is fixed to the packaging material 11 via the release paper 13 .

Specifically, the release paper 13 includes a central release paper 131 covering the central anti-slip part 81, a front release paper 132 covering the pair of front anti-slip parts 82, and a pair of wing anti-slip parts 83 respectively. It has a wing release paper 133 . The center release paper 131, the front pair of release papers 132, and the pair of wing release papers 133 are each separate sheets. That is, six release papers 13 are fixed to the packaging material 11 .

Moreover, the napkin 1 has a compressed portion 20 that is recessed in the thickness direction of the napkin 1 . The pressing portion 20 may be a (grooved) pressing portion that is continuously recessed in the thickness direction in the front-rear direction or the width direction, or a dot-like pressing portion that is discontinuously recessed in the thickness direction. There may be. The compressed portion 20 can prevent the absorbent body 2 from losing its shape and improve the liquid diffusibility of the napkin 1 . As shown in FIG. 1, the napkin 1 of the present embodiment includes a compressed portion in which dotted compressed portions are discretely arranged, a compressed portion in which dotted compressed portions are arranged in a line, and a dotted compressed portion. There are compressed portions arranged to form a pattern (for example, the eyes and nose of a bear) and compressed portions compressed into the shape of characters.

In the pressing part 20, the thickness of the napkin 1 is thinner than the surrounding area, and the fiber density of the napkin 1 is high. These comparisons may be made by a well-known method. As a comparison of the thickness of the napkin 1, a method of visual comparison or a dial thickness gauge ID-C1012C manufactured by Mitutoyo Co., Ltd. or its equivalent is used, and the target site is heated at, for example, 3.0 gf / cm ² . A method of acquiring and comparing values measured by pressing can be exemplified. As a comparison of the density of the napkin 1, a method of comparing a cross section of the napkin 1 cut in the thickness direction based on an image enlarged by an electron microscope or the like can be exemplified.

In the present embodiment, the skin-side sheet 3 and the warming agent holding sheet 7 are compressed from the skin side in the compressed portion 20 provided in the widthwise central portion of the front region 1A. The compressed portion 20 provided at the central portion in the width direction of the rear region 1B includes a compressed portion compressed from the skin side sheet 3 to the absorbent body 2 from the skin side, and a compressed portion (not shown) compressed only the absorbent body 2. ).

In addition, a side compressed portion 21 extending long in the front-rear direction is provided at the inner end portion in the width direction of the side seat 6 . In the side pressing portion 21, at least the side sheet 6 and the skin side sheet 3 are recessed in the thickness direction. The side sheet 6 is fixed to the skin side sheet 3 by the side pressing portion 21 .

=== Warming agent 30 and fragrance agent 31 ===
FIG. 5 is an explanatory diagram of the warming agent arrangement area 301. As shown in FIG. FIG. 6 is an explanatory diagram of the flavoring agent arrangement area 311. As shown in FIG. The napkin 1 of this embodiment has a warming agent arrangement area 301 in which the warming agent 30 is arranged and a fragrance agent arrangement area 311 in which the fragrance agent 31 is arranged. Arrangement of the warming agent 30 and the fragrance agent 31 is performed by various known coating methods such as a spray method, a roller coating method, and a brush coating method. and the like. Also, the size, shape, and arrangement position of the warming agent placement region 301 and the fragrance agent placement region 311 are not limited to those shown in FIGS.

The warming agent 30 includes, for example, a warming component that activates TRP channels (thermoreceptors (thermal receptors)) and a solvent component. The placement of the warming agent 30 on the napkin 1 stimulates the TRP channels of the wearer of the napkin 1 . As a result, it can be expected that heat is generated from the contact portion of the warming agent 30 via the sympathetic nervous system, and the temperature of the contact portion of the warming agent 30 is increased. Even if the warming agent 30 is not placed in direct contact with the wearer's skin, the warming agent 30 elutes or evaporates when the wearer wears the product, so that the warming agent 30 reaches the wearer's skin. , activates the wearer's TRP channels. As described above, the warming agent 30 is different from an exothermic agent that generates heat by itself, so low-temperature burns are less likely to occur. In addition, since the anti-slip portion 8 for attaching the napkin 1 to the underwear is less likely to soften, the anti-slip portion 8 is less likely to remain on the underwear when the napkin 1 is removed from the underwear, which is preferable.

The warming component is not particularly limited as long as it activates the TRP channel, and may be liquid or solid (including paste, powder, etc.). In addition, the warming component is preferably a plant-derived compound from the viewpoint of comfort of the wearer. Examples of warming stimulants include capsicoside, capsaicin (LD50: 47 mg/kg, molecular weight: 305), capsaicinoids (dihydrocapsaicin, nordihydrocapsaicin, homodihydrocapsaicin, homocapsaicin, nonivamide, etc.), capsanthin, and benzyl nicotinate. (LD50: 2,188 mg/kg, molecular weight: 213), β-butoxyethyl nicotinate, N-acylvanilamide, nonanoic acid vanillylamide, polyhydric alcohol, red pepper powder, red pepper tincture, red pepper extract, nonanoic acid vanillyl ether , vanillyl alcohol alkyl ether derivatives (e.g., vanillyl ethyl ether, vanillyl butyl ether (LD50: 4,900 mg/kg, molecular weight: 210), vanillyl pentyl ether, vanillyl hexyl ether), isovanillyl alcohol alkyl ether, Ethyl vanillyl alcohol alkyl ether, veratial alcohol derivative, substituted benzyl alcohol derivative, substituted benzyl alcohol alkyl ether, vanillin propylene glycol acetal, ethyl vanillin propylene glycol acetal, ginger extract, ginger oil, gingerol (LD50: 250 mg/kg, molecular weight: 294), zingerone, hesperidin, and pyrrolidone carboxylic acid, and any combination thereof.

The solvent component is not particularly limited as long as it can contain a warming component, and examples thereof include lipophilic solvents and hydrophilic solvents. Such a solvent component can dissolve or disperse the warming component. Lipophilic solvents include fats and oils such as natural oils (e.g. fatty acid esters such as triglycerides, coconut oil, linseed oil, tri(caprylic/capric)glyceryl), hydrocarbons (e.g. paraffins such as liquid paraffin). etc. Hydrophilic solvents include water and alcohols. Examples of alcohols include lower alcohols such as methanol, ethanol, ethylene glycol and glycerin, and higher alcohols such as capryl alcohol, lauryl alcohol and myristyl alcohol. Among them, as the solvent component, oils (lipophilic solvents) or alcohols (hydrophilic solvents) are preferable from the viewpoint of easy control of volatility, particularly easy reduction of volatility. Moreover, in the napkin 1, it is preferable that the said solvent component is a lipophilic solvent from a viewpoint of being hard to inhibit absorptivity.

The concentration of the warming component in the warming agent 30 is preferably 1 to 70% by mass, more preferably 10 to 60% by mass, and still more preferably 20 to 55% by mass, from the viewpoint of the warming effect. In addition, from the viewpoint of imparting warmth to the wearer, in the napkin 1, the basis weight of the warming component in the warming agent 30 is preferably 0.001 to 40 g/m ² , more preferably 0.1 to 40 g/m 2 . 30 g/m ² , more preferably 1 to 20 g/m ² .

As shown in FIG. 2, in the napkin 1 of the present embodiment, the non-skin side of the skin-side sheet 3 and the skin side of the sheet 7a closest to the skin among the three warming agent holding sheets 7 are heated. A sensitive material placement area 301 is provided. Further, as shown in FIG. 5, the warming agent placement region 301 is provided from the central portion to the front side in the front-rear direction of the napkin 1 . When the napkin 1 is worn so that the excretory opening contact area of the napkin 1 corresponds to the excretory opening of the wearer, the front area 1A of the napkin 1 corresponds to the lower abdomen of the wearer. Therefore, the warming agent 30 activates the TRP channel in the lower abdomen of the wearer, thereby providing a warm sensation to the lower abdomen of the wearer. By warming the wearer's lower abdomen, that is, the part near the wearer's uterus, it is expected to alleviate the wearer's menstrual pain and reduce symptoms such as premenstrual syndrome, coldness, and menopausal disorders. be.

Further, as shown in FIG. 2, the fragrance agent arrangement area 311 is provided on the non-skin side surface of the sheet 7a closest to the skin among the three warming agent holding sheets 7. As shown in FIG. The fragrance agent 31 is not particularly limited as long as it is used in the art, and examples thereof include rose, lavender, jasmine, ylang-ylang-like fragrance, green herbal-like fragrance, and the like. Arrangement of the fragrance agent 31 on the napkin 1 can alleviate the wearer's depressed mood during the menstrual period. In addition, the unpleasant odor of excrement (menstrual blood, etc.) can be masked by the fragrance agent 31 .

===Characteristic part of the individual package 10===
FIG. 7 is an explanatory diagram of the fixing region 15 of the paper-side adhesive portion 14 in the first state. FIG. 8 is an explanatory diagram of the fixing region 15 of the paper-side adhesive portion 14 in the second state. FIG. 9 is an explanatory diagram of the fixing region 16 of the anti-slip portion 8 in the second state. 10A and 10B are explanatory diagrams of the folding portions F1 and F2 of the individual package 10. FIG. FIG. 11 is a plan view of the modified individual package 10 in the unfolded state as seen from the inside.

At the folding portions F1 to F4 of the individual package 10, the napkin 1 is folded so that the wrapping material 11 wraps the napkin 1. As shown in FIG. Further, since the napkin 1 has a thickness, the thickness of the napkin 1 causes the napkin 1 to bend outward and swell at the folded portions F1 to F4. Therefore, force is applied from the packaging material 11 to the napkin 1 at the folding portions F1 to F4, and the napkin 1 is folded while being pressed against the packaging material 10. FIG. Therefore, the napkin 1 is likely to be wrinkled by the folded portions F1 to F4. In particular, creases are likely to form on the skin side of the napkin 1, which is the inner side of the fold.

Generally, in the production line of the individual package 10, the napkin 1 is joined and fixed to the continuous body of the packaging material 11 while the continuous body of the packaging material 11 is conveyed in the continuous direction. That is, the napkin 1 is fixed under tension to the continuous body of wrapping material 11 and then folded. Therefore, more force acts on the napkin 1 from the packaging material 11, and the napkin 1 is folded while being strongly pressed against the packaging material 11. - 特許庁Also from this, it can be said that the napkin 1 is likely to be creased.

Therefore, in this embodiment, the packaging material 10 is slightly loosened at the folded portions F1 and F2 of the individual package 10 in order to reduce wrinkles in the napkin 1 . The individual package 10 of this embodiment has folding portions F1 and F2 along the front-rear direction of the napkin 1 and folding portions F3 and F4 along the width direction. allowed to relax.

In this embodiment, the napkin 1 is fixed to the packaging material 11 via the release paper 13 . In this case, in the manufacturing line of the individual package 10, the napkin 1 often joins the continuous body of the packaging material 11 with the release paper 13 fixed to the anti-slip portion 8 of the napkin 1. By doing so, it is possible to prevent the misalignment between the anti-slip portion 8 and the release paper 13 . That is, the paper-side adhesive portion 14 of the release paper 13 is often fixed to the continuous body of the packaging material 11 to which tension is applied during transportation. Therefore, in this embodiment, the paper-side adhesive portion 14 of the release liner 13 is arranged as shown in FIG.

For the following description, the paper-side adhesive portion 14 that secures the central release paper 131 to the packaging material 11 is referred to as the central adhesive portion 141, and the paper-side adhesive portion 14 that secures the front release paper 132 to the packaging material 11 is referred to as the front adhesive portion. 142 , and the paper-side adhesive portion 14 that fixes the wing release paper 133 to the packaging material 11 is called the wing adhesive portion 143 . In each paper-side adhesive portion 14, a plurality of adhesive portions to which adhesive is applied in a line form are arranged in a row at intervals in the width direction. The size, shape, and arrangement position of the paper-side adhesive portion 14 are shown in FIG. not limited to

Then, as shown in FIG. 7, the central adhesive portion 141 (first adhesive portion) and the front adhesive portion 142 (second adhesive portion) are spaced apart in the width direction (predetermined direction). Similarly, the central adhesive portion 141 (first adhesive portion) and the wing adhesive portion 143 (second adhesive portion) are spaced apart in the width direction. In addition, between the central adhesive portion 141 and the front adhesive portion 142 in the width direction, and between the central adhesive portion 141 and the wing adhesive portion 143, the folding portions F1 and F2 along the front-rear direction (folding portions orthogonal to the predetermined direction) are provided. ) was established. In other words, the paper-side adhesive portion 14 of the release paper 13 is prevented from straddling the folded portions F1 and F2. By doing so, the release paper 13 and the napkin 1 are not fixed to the packaging material 11 at the folded portions F1 and F2, and the packaging material 11 can be loosened. However, the release liner 13 of this embodiment is separated, and the release liner 13 does not exist at the folded portions F1 and F2.

Further, in this embodiment, the paper-side adhesive portion 14 of the release paper 13 and the anti-slip portion 8 of the napkin 1 are arranged at approximately the same position. Therefore, the anti-slip portion 8 also does not straddle the folded portions F1 and F2. However, when the packaging material 11 is loosened with respect to the release paper 13 and the napkin 1 at the folds F1 and F2, if the release paper 13 covers the anti-slip portion 8 at the folds F1 and F2, the anti-slip portion 8 is It may straddle the folding portions F1 and F2.

Also, the napkin 1 has a thickness. Therefore, the folded portions F1 and F2 along the front-rear direction of the napkin 1 form regions having a width in the width direction of the napkin 1. As shown in FIG. In this specification, the position of the vertex (for example, Fe in FIG. 9) of the folded portions F1 and F2 in the individual package 10 is defined as the center line of the folded portions F1 and F2. Specifically, in a state in which a weight (for example, 200 g) is placed on the plane of the individual package 10 via a plate larger than the plane of the individual package 10, the position where the individual package 10 protrudes the most is the folded portion. It is obtained as the center line of F1 and F2. Then, the maximum thickness of the portion (widthwise central portion) of the individual package 10 that overlaps the portion (widthwise side portion) of the individual package 10 folded in the widthwise direction by the folding portions F1 and F2 is t. (thickness of napkin 1 + release paper 13 + wrapping material 11). In that case, the regions separated by πt/2 from the center line of the folded portions F1 and F2 on both sides in the width direction of the napkin 1 are defined as the folded portions F1 and F2.

Similarly, the folded portions F3 and F4 along the width direction of the napkin 1 form regions having a width in the front-rear direction of the napkin 1. As shown in FIG. Therefore, the positions of the vertices of the folding portions F3 and F4 are defined as the center lines of the folding portions F3 and F4. Then, the maximum thickness of the portion (central portion in the longitudinal direction) of the individual package 10 that overlaps the portion (ends in the longitudinal direction) of the individual package 10 folded in the longitudinal direction by the folding portions F3 and F4 is t. do. In that case, the regions separated by πt/2 from the center line of the folded portions F3 and F4 on both sides in the longitudinal direction of the napkin 1 are defined as the folded portions F3 and F4. In this embodiment, the folding portions F3 and F4 in the width direction are the folding portions after the folding portions F1 and F2 in the longitudinal direction. Therefore, at the folds F3 and F4 in the width direction, since the portions folded by the folds F1 and F2 are further folded, the value of t increases and the curved portions of the folds F3 and F4 also increase.

The thickness t of the individual package 10 is the portion of the individual package 10 that is the lower side (the center side in the width direction and the longitudinal direction) when the individual package 10 is opened to the corresponding folding portions F1 to F4. Measure the thickness. For example, using a dial thickness gauge ID-C1012C manufactured by Mitutoyo Co., Ltd. or its equivalent, it is obtained as a value measured by pressurizing the target site at, for example, 3.0 gf/cm ² .

A region of the packaging material 11 to which the paper-side adhesive portion 14 of the release paper 13 is fixed is called a fixed region 15 . Specifically, a region of the packaging material 11 to which the central adhesive portion 141 is fixed is called a central fixed region 151 (first region). In the packaging material 11, a region to which the front adhesive portion 142 is fixed is called a front fixing region 152 (second region), and a region to which the wing adhesive portion 143 is fixed is called a wing fixing region 153 (second region).

Further, as shown in FIG. 7, the individual package 10 is unfolded (all the folded portions F1 to F4 of the individual package 10 are unfolded), and the napkin 1 is individually wrapped while being fixed to the packaging material 11. A state in which the body 10 is stretched is referred to as a first state. As shown in FIG. 8, the state in which the individual package 10 is unfolded and the packaging material 11 from which the napkin 1 is removed is expanded is referred to as a second state. The state in which the individual package 10 is stretched and the state in which the packaging material 11 is stretched are states in which the packaging material 11 is taut so that the packaging material 11 is not wrinkled.

The widthwise separation distance W1 between the central fixing region 151 and the front fixing region 152 in the first state (FIG. 7) is the widthwise separation distance between the central fixing region 151 and the front fixing region 152 in the second state (FIG. 8). Make it shorter than the distance W2. Similarly, the widthwise separation distance W3 between the central fixing region 151 and the wing fixing regions 153 in the first state is made shorter than the widthwise separation distance W4 between the central fixing region 151 and the wing fixing regions 153 in the second state.

In the first state in which the napkin 1 and the release paper 13 remain fixed, the fact that the separation distances W1 and W3 of the fixed regions 15 are short means that the packaging material 11 is slack at the folded portions F1 and F2. Therefore, the bent portions of the napkin 1 bulging outward due to the thickness of the napkin 1 at the folded portions F1 and F2 can be covered with the loose packaging material 11 . Therefore, it is possible to prevent the wrapping material 11 from strongly pressing the napkin 1 at the folds F1 and F2, and to reduce creases of the napkin 1 caused by the folds F1 and F2. As a result, the appearance of the napkin 1 can be improved. In addition, it is possible to prevent discomfort when worn due to creases, and to prevent leakage by suppressing the occurrence of gaps between the wearer and the napkin 1 due to creases.

As a method of making the packaging material 11 loose at the folding portions F1 and F2 (a method of shortening the separation distances W1 and W3 of the fixed regions 15 in the first state), for example, in the manufacturing line of the individual package 10, the packaging material A method of reducing the tension in the conveying direction applied to the continuous body of packaging material 11 when the napkins 1 are joined and fixed to the continuous body of packaging material 11 can be mentioned.

Further, in the present embodiment, two adhesive portions (the front adhesive portion 142 and the wing adhesive portion 143) are arranged apart from the central adhesive portion 141 in the width direction, but this is not restrictive. For example, it may be a napkin 1 that does not have the wing portion 1w and does not have the wing adhesive portion 143, or the napkin 1 that does not have the front adhesive portion 142 because the front region 1A of the napkin 1 is not wide. may Conversely, the rear region of the napkin 1 is a wide napkin 1, and between the adhesive portion (second adhesive portion) fixing both ends in the width direction of the wide rear region and the central adhesive portion 141 (first adhesive portion) may be provided with folding portions F1 and F2.

Further, the individual package 10 may not have the release paper 13 and the napkin 1 may be directly fixed to the packaging material 11 by the anti-slip portion 8 . In this case, the wrapping material 11 is loosened with respect to the napkin 1 at the folding portions F1 and F2. Further, in the production line of the individual package 10, the napkin 1 may join the continuous body of the packaging material 11 to which the release paper 13 is fixed. In this case, the packaging material 11 and the release paper 13 are loosened with respect to the napkin 1 at the folds F1 and F2. In these cases, the napkin 1 anti-slip portion 8 (article-side adhesive portion) is not provided on the folded portions F1 and F2.

Specifically, as shown in FIG. 2, the central anti-slip portion 81 (first adhesive portion) and the front anti-slip portion 82 (second adhesive portion) are arranged to be spaced apart in the width direction, and the central anti-slip portion 81 The (first adhesive portion) and the wing anti-slip portion 83 (second adhesive portion) are spaced apart in the width direction. It is preferable to provide the folding portions F1 and F2 between the center anti-slip portion 81 and the front anti-slip portion 82 in the width direction, and between the center anti-slip portion 81 and the wing anti-slip portion 83 .

In addition, in the packaging material 11, a fixing region 16 to which the anti-slip portion 8 of the napkin 1 is fixed corresponds to the fixing region 15 described above. Specifically, the area where the central anti-slip portion 81 is fixed in the packaging material 11 is called a central fixed area 161 (first area), and the area where the front anti-slip portion 82 is fixed is called the front fixed area 162 (second area). area), and the area where the wing anti-slip portion 83 is fixed is called a wing fixing area 163 (second area).

The widthwise separation distance W5 between the central fixing region 161 and the front fixing region 162 in the first state (FIG. 2) is the widthwise separation distance between the central fixing region 161 and the front fixing region 162 in the second state (FIG. 9). Make it shorter than the distance W6. Similarly, the widthwise separation distance W7 between the central fixing region 161 and the wing fixing regions 163 in the first state is made shorter than the widthwise separation distance W8 between the central fixing region 161 and the wing fixing regions 163 in the second state.

By doing so, the packaging material 11 is slackened with respect to the napkin 1, or the release paper 13 and the packaging material 11 are slackened with respect to the napkin 1 at the folded portions F1 and F2. Therefore, it is possible to prevent the wrapping material 11 and the release paper 13 from strongly pressing the napkin 1 at the folds F1 and F2, and to reduce wrinkles of the napkin 1 caused by the folds F1 and F2.

Methods for comparing the separation distances W1 to W8 between the fixed regions 15 and 16 include the following methods. First, all the folded portions F1 to F4 of the individual package 10 are unfolded to the first state. In the packaging material 11, the positions of the ends 151a and 61a on one side in the width direction of the central fixing regions 151 and 161 and the positions of the ends 152b and 162b on the other side in the width direction of the front fixing regions 152 and 162 on one side in the width direction , or the positions of the ends 153b, 163b on the other side in the width direction of the wing fixing regions 153, 163 on the one side in the width direction. The two positions are marked on the outer surface of the wrapping material 11 .
Next, the individual package 10 in the first state is fixed on a flat base. The individual package 10 is fixed on a flat stand with the outer surface of the individual package 10 facing up and the packaging material 11 being stretched. Then, the distances in the width direction between the two positions marked on the packaging material 11 are measured and defined as the distances W1, W3, W5, W7 in the first state.
Next, the napkin 1 and the release paper 13 are removed from the packaging material 11 to put it in the second state. The release paper 13 may be removed from the packaging material 11 by using toluene or cold spray. The packaging material 11 is fixed on a flat base with the outer surface of the packaging material 11 facing up and the packaging material 11 being stretched taut. Then, the distances in the width direction between the two positions marked on the packaging material 11 are measured and used as the distances W2, W4, W6, and W8 in the second state. The separation distances W1 to W8 thus obtained are compared.

Note that the comparison is not limited to the distance between the inner and inner sides of the fixed regions 15 and 16 . When the individual package 10 has the release paper 13 , it is difficult to visually recognize the anti-slip portion 8 of the napkin 1 from the outside of the packaging material 11 . In this case, the position of the anti-skid part 8 (fixed area 16) should be checked while turning over the packaging material 11 to the position where the anti-slip part 8 of the napkin 1 is fixed to the packaging material 11. FIG. In this case, since the positions of the widthwise outer ends 161a to 163a of the fixing regions 161 to 163 in the packaging material 11 can be easily confirmed, the intervals between the outer ends 161a to 163a may be compared.

Between the central fixing regions 151, 161 and the wing fixing regions 153, 163, the widthwise ends 2b of the absorber 2 having a thickness are positioned. In this case, the area of the individual package 10 where the absorbent body 2 is present may be lifted for measurement so that the step at the end 2b of the absorbent core 2 does not affect the separation distance. Specifically, it is preferable to place both sides of the individual package 10 in the width direction where the absorbent body 2 is not present on two flat stands arranged with an interval therebetween, respectively, and measure.

In addition, in the individual package 10 of the present embodiment, both sides in the width direction of the napkin 1 are folded at the folding portions F1 and F2 along the front-rear direction (longitudinal direction), and both ends in the front-rear direction of the napkin 1 are folded. are folded at folding portions F3 and F4 along the width direction. When the number of folded portions F1 to F4 of the individual package 10 is large in this way, the number of creases in the napkin 1 increases, and the creases tend to stand out. Therefore, by loosening the packaging material 11 in at least some of the folded portions of the individual package 10 (in the present embodiment, in the folded portions F1 and F2 along the front-rear direction) to reduce the fold wrinkles, the fold wrinkles become conspicuous. can be made difficult.

Moreover, it is preferable that the packaging material 11 is loosened at the folding portions F1 and F2 along the front-rear direction, and is not loosened at the folding portions F3 and F4 along the width direction. In other words, at least one of the central adhesive portion 141 of the release paper 13 and the central anti-slip portion 81 of the napkin 1 should be straddled by the folded portions F3 and F4 along the width direction. In this embodiment, the folded portions F3 and F4 along the width direction straddle both the central adhesive portion 141 and the central anti-slip portion 81 .

By doing so, it is possible to reduce long and conspicuous creases caused by the folded portions F1 and F2 extending in the front-rear direction. On the other hand, the creases caused by the folds F3 and F4 along the width direction are not reduced, but the creases are short and inconspicuous. Further, the central adhesive portion 141 and the central anti-slip portion 81 can be provided continuously in the front-rear direction of the napkin 1 . Therefore, the release paper 13 can be firmly fixed to the packaging material 11, and the napkin 1 can be firmly fixed to the underwear. In addition, since the central adhesive portion 141 and the central anti-slip portion 81 can be continuously arranged in the front-rear direction of the napkin 1, the manufacturing process (adhesive applying process) is facilitated.

However, it is not limited to the above. For example, the packaging material 11 may be loosened at all the folding portions F1 to F4 of the individual package 10, or the packaging material 11 may be loosened at the folding portions F1 and F2 along the front-rear direction, and the packaging material 11 may be folded along the width direction. The packaging material 11 may be loosened at the folding portions F3 and F4. Alternatively, the packaging material 11 may be loosened only at a portion of the plurality of folds F1 and F2 along the front-rear direction, or the packaging material 11 may be loosened only at a portion of the plurality of folds F3 and F4 along the width direction. You can let

Also, the folding method of the individual package 10 is not limited to the above. For example, the individual package 10 may be folded in three or four at the folds along the width direction without having the folds along the front-rear direction. In that case, the packaging material 11 should be loosened at the folds along the width direction.

In order to loosen the packaging material 11 at the folds F3 and F4 along the width direction, the adhesive portions are spaced apart in the front-rear direction (predetermined direction) and the folds F3 and F4 along the width direction are provided therebetween. good. This adhesive part corresponds to the paper-side adhesive part 14 of the release paper 13 when the packaging material 11 is loosened from the napkin 1 and the release paper 13, and only the packaging material 11 or the packaging material is attached to the napkin 1. When loosening 11 and release paper 13, anti-slip portion 8 of napkin 1 corresponds. In the first state, the distance between the adhesive portions spaced apart in the front-rear direction is made shorter than in the second state.

Moreover, the individual package 10 of this embodiment has a release paper 13 . Then, a central release paper 131 covering the central anti-slip part 81 and the central adhesive part 141 (first adhesive part), a front release paper 132 covering the front anti-slip part 82 and the front adhesive part 142 (second adhesive part), The wing release paper 133 covering the wing anti-slip portion 83 and the wing adhesive portion 143 (second adhesive portion) is a separated sheet.

These separated sheets 131 to 133 preferably do not overlap the folded portions F1 and F2 extending in the front-rear direction when the individual package 10 in the first state is viewed from above. By doing so, force is not applied from the release paper 13 to the napkin 1 at the folding portions F1 and F2, and the napkin 1 can be prevented from being folded while being pressed against the release paper 13. - 特許庁Therefore, creases caused by the folded portions F1 and F2 can be further reduced. In other words, it is no longer necessary to loosen the release paper 13 against the napkin 1 at the folds F1 and F2 in order to reduce creases.

Next, the distances W1 to W8 between the fixed areas 15 and 16 will be described. What will be described below is that when the packaging material 11 is loosened from the napkin 1 and the release paper 13, at least the fixing region 15 of the paper-side adhesive portion 14 of the release paper 13 needs to be filled. On the other hand, when only the packaging material 11 or the packaging material 11 and the release paper 13 are loosened from the napkin 1, at least the fixing region 16 of the anti-slip portion 8 of the napkin 1 needs to be filled.

Then, the maximum thickness of the portion (the central portion in the width direction) of the individual package 10 that overlaps the portion (the side portion in the width direction) of the individual package 10 folded in the width direction (predetermined direction) by the folding portions F1 and F2 Let t be the thickness (the method for measuring the thickness t is the same as the method described above). In that case, as shown in FIG. 9, the outer length (Fa-Fe-Fb) of the curved portion of the individual package 10 bulging outward at the folding portions F1 and F2 is "πt". The thickness of the stacked individual packages 10 other than the folded portions F1 and F2 is "2t". This length difference “πt−2t” is the length of the outward swelling of the individual package 10 at the folding portions F1 and F2. In addition, the folding starting point of the individual package 10 at the folding portions F1 and F2 is the middle point (Fa2 to Fe2 to Fb2) of the individual package 10 in the thickness direction. The length of the outward swelling of the individual package 10 at this folding start point is half the above length, ie, "πt/2−t".

Therefore, the difference between the separation distances W1, W3, W5, W7 between the fixed regions 15, 16 in the first state and the separation distances W2, W4, W6, W8 between the fixed regions 15, 16 in the second state, that is, the packaging material The length by which 11 is loosened should be "πt/2−t" or longer, more preferably "πt−2t" or longer.

By doing so, the curved portions of the napkin 1 bulging outward at the folded portions F1 and F2 can be covered with the loosened wrapping material 11 . Therefore, it is possible to prevent the wrapping material 11 from strongly pressing the napkin 1 at the folds F1 and F2, and to reduce creases of the napkin 1 caused by the folds F1 and F2. As described above, the width direction folds F3 and F4 are later than the longitudinal folds F1 and F2. value will also increase. Therefore, the length by which the packaging material 11 is loosened becomes long.

On the other hand, the difference between the distances W1, W3, W5, W7 between the fixed areas 15, 16 in the first state and the distances W2, W4, W6, W8 between the fixed distances 15, 16 in the second state, that is, the packaging It is preferable that the length by which the material 11 is loosened is set to "πt" or less. That is, the length of loosening the packaging material 11 should be kept to the length "πt" or less of the curved portion (Fa-Fe-Fb) of the individual package 10 bulging outward at the folding portions F1 and F2. By doing so, it is possible to prevent the packaging material 11 from being unnecessarily loosened at the folding portions F1 and F2. Therefore, deterioration of the appearance of the individual package 10 can be suppressed.

Moreover, it is preferable that the separation distances W1, W3, W5, and W7 between the fixing regions 15 and 16 in the first state are "πt" or more. By doing so, the paper-side adhesive portion 14 of the release paper 13 is not located at the folded portions F1 and F2, and the packaging material 11 can be loosened with respect to the napkin 1 and the release paper 13.例文帳に追加In addition, the anti-slip portion 8 of the napkin 1 is not located at the folded portions F1 and F2, so that the packaging material 11 can be loosened with respect to the napkin 1, and the packaging material 11 and release paper 13 can be loosened. Therefore, creases caused by the folded portions F1 and F2 can be reduced.

In addition, the napkin 1 of the present embodiment includes an agent (hereinafter also referred to as "functional agent") that exhibits a predetermined function, such as the warming agent arrangement area 301 shown in FIG. 5 and the fragrance agent arrangement area 311 shown in FIG. has an arrangement area in which is arranged. The number of functional agents that the napkin 1 has may be one or more. Further, the napkin 1 is not limited to having the warming agent 30 and the fragrance agent 31, and may have other functional agents. Examples of other functional agents include cooling agents, herbal medicines, skin astringents, anti-inflammatory agents, antibacterial agents, pH adjusters, moisturizing agents and the like. Known ones can be adopted for these.

Moreover, in general, the functional agent is placed (applied) together with a solvent or an adhesive so that the functional agent can be easily fixed on the napkin 1 . That is, in the manufacturing line of the napkin 1, the functional agent is placed in a liquid state on any of the materials constituting the napkin 1. As shown in FIG. Therefore, in the region where the functional material is arranged, the fibers of the material constituting the napkin 1 are more likely to sag than in the region where the functional material is not arranged. In the area where the fibers are weakened, the cushioning property (compression recovery property) of the napkin 1 is deteriorated, and wrinkles are likely to occur.

Therefore, when the individual package 10 in the first state is viewed from above, the folded portions F1 and F2 extending in the front-rear direction are the functional material placement regions (the warming agent placement region 301 and the fragrance agent placement region 311 of the present embodiment). preferably do not overlap. By doing so, at the portions of the napkin 1 where the folded portions F1 and F2 are located, the material does not sag and the cushioning property of the napkin 1 is maintained. Therefore, creases at the folding portions F1 and F2 can be further reduced. However, the napkin 1 may not have the functional material.

The following method is conceivable as a method of confirming the placement region of the functional material such as the warming agent 30 . For example, using a cold spray or the like, the material of the napkin 1 laminated in the thickness direction is decomposed, and after scattering fine colored particles such as bamboo charcoal or cocoa powder on each material, the particles are removed. Since many particles adhere to the portion where the functional material is arranged, the area where the functional material is arranged can be specified.

In addition, in order to specify the arrangement area of the warming agent 30, a large number of fine samples of a predetermined size may be cut from the napkin 1 in the front-rear direction and the width direction, and a sensory test may be performed. For example, the cut sample is applied to the examiner's upper arm, and a highly airtight sheet such as a PE sheet is placed thereon. The examiner measures and records the time it takes to feel the warming effect of the sample. By comparing the measurement time for each sample, the position of the napkin 1 from which the sample with the shortest measurement time is cut out can be specified as the placement region of the warming agent 30 .

Moreover, in the pressing part 20, the thickness of the napkin 1 becomes thinner compared with the circumference|surroundings. Therefore, the compressing portion 20 tends to become a starting point of bending due to the difference in rigidity from the surroundings. The side pressing portions 21 are pressing portions 20 that fix the side sheet 6 to the skin side sheet 3, and are provided on both sides in the width direction of the napkin 1 so as to extend long in the front-rear direction. Therefore, both side portions in the width direction of the napkin 1 are likely to break starting from the side compressed portions 21 . Therefore, as described above, the folded portions F1 and F2 extending in the front-rear direction overlap the side compressed portions 21, so that the napkin 1 is easily folded at the folded portions F1 and F2.

The thickness of the napkin 1 also changes at the edges of the material forming the napkin 1 (for example, the side edges of the absorbent core 2 and the side edges of the skin-side sheet 3 in the width direction). Therefore, the portion of the napkin 1 where the end of the material is positioned is likely to become a starting point of folding due to the difference in rigidity from the surroundings. Therefore, the folded portions F1 and F2 extending in the front-rear direction are overlapped with the ends of the material forming the napkin 1, so that the napkin 1 can be easily folded at the folded portions F1 and F2.

In this way, when the individual package 10 in the first state is viewed from above, it is preferable that the folded portions F1 and F2 extending in the front-rear direction have a region that overlaps the portion of the napkin 1 where the thickness changes. By doing so, the napkin 1 becomes easy to fold at the folding portions F1 and F2, and is neatly folded back. Therefore, creases caused by the folded portions F1 and F2 are reduced.

Moreover, when the napkin 1 contains a volatile substance such as the warming agent 30 or the fragrance agent 31, it is preferable to use the packaging material 11 that suppresses volatilization of the volatile substance. For example, between sheet layers containing a weldable resin such as polyethylene (PE) or polypropylene (PP), a material capable of suppressing volatilization of volatile substances such as ethylene-vinyl alcohol copolymer sheet (EVOH) A packaging material comprising a layer containing By using such a packaging material 11, volatilization of the warming agent 30 and the like before the individual package 10 is opened can be suppressed, and when the wearer uses the napkin 1, the warming agent 30 and the like can be suppressed. function is exhibited.

The tensile strength in the width direction (predetermined direction) of the packaging material 11 composed of multiple layers as described above is higher than the tensile strength in the width direction of the non-skin-side sheet 5 such as a synthetic resin film. That is, the packaging material 11 becomes a sheet that is less stretchable in the width direction than the non-skin side sheet 5 . In this case, when both sides of the napkin 1 in the width direction are folded back inward in the width direction at the folding portions F1 and F2 along the front-rear direction, the napkin 1 is pressed more strongly from the packaging material 11, and the napkin 1 is folded. becomes more likely to occur. However, in this embodiment, since the packaging material 11 is loose at the folding portions F1 and F2, creases can be reduced. In other words, even when the packaging material 11 that is difficult to stretch in the width direction is used, creases due to the folding portions F1 and F2 can be reduced. However, it is not limited to the above, and a stretchable sheet such as SMS nonwoven fabric may be used as the packaging material 11 .

As a method for measuring the tensile strength of the packaging material 11 and the non-skin side sheet 5, the following method can be exemplified. First, samples of the packaging material 11 and the non-skin side sheet 5 are cut out from the individual package 10 . The size of the sample should be about 80 mm in the width direction (predetermined direction) of the napkin 1 and about 20 mm in the front-rear direction of the napkin 1 . Each material is separated using cold spray, toluene, or the like, and the release paper 13 is removed from the packaging material 11 .
Next, the sample is attached to a tensile tester so that the width direction of the napkin 1 coincides with the tensile direction. As the tensile tester, for example, a tensile tester manufactured by Instron can be used. The chuck interval should be about 50 mm. A measured value obtained when the sample is pulled at a tensile speed of 500 mm/min is defined as tensile strength (N). For example, the measured value when the sample is elongated by 3% may be used as the tensile strength. As the tensile strength, it is preferable to adopt an average value of values measured a plurality of times (for example, 5 times).

Further, as shown in FIG. 5, the napkin 1 of the present embodiment is provided with a warming agent placement region 301 from the front to the central portion. Therefore, when the napkin 1 is worn in the correct front-to-rear orientation, a warm feeling can be imparted to the lower abdomen of the wearer. When the function and shape of the napkin 1 are thus asymmetrical in the front-rear direction of the napkin 1, it is necessary to have the wearer wear the napkin 1 in the correct front-rear direction.

Therefore, the napkin 1 of the present embodiment is provided with a compressed portion 20 that is visible from the skin side of the napkin 1 and indicates the front and back in the longitudinal direction of the napkin 1 . Such a compression unit 20 is called a display compression unit 22 . Specifically, as shown in FIG. 1 , the bear pattern 23 formed by the pressing section 20 corresponds to the display pressing section 22 . The up-and-down direction of the bear pattern 23 corresponds to the longitudinal direction of the napkin 1, and the head side (upper side) of the bear pattern 23 corresponds to the front side of the napkin 1. - 特許庁A wearer who sees the pattern 23 of the bear when wearing the napkin 1 intuitively recognizes the front-rear direction of the napkin 1 and can wear the napkin 1 so that the head side of the pattern 23 of the bear is located on the abdomen side of the wearer. That is, the napkin 1 is attached in the correct front-rear direction.

The display pressing portion 22 is not particularly limited as long as it is a display that can indicate the front-rear direction of the napkin 1 . It may be a pattern having a vertical direction such as the bear pattern 23 (for example, an animal, a plant, a vehicle, etc.), a character (for example, "front", etc.), a number, a symbol having a vertical direction, or a combination thereof. . Further, the vertical direction of the display pressing portion 22 is not necessarily parallel to the front-rear direction of the napkin 1 . The vertical direction of the display pressing portion 22 may be inclined at less than 90 degrees with respect to the front-rear direction of the napkin 1 .

Moreover, the napkin 1 of this embodiment has a display pressing portion 22 in addition to the bear pattern 23 . One is the word "HOT" 24 formed by the pressing section 20 . The other is a pattern 25 of a bear's leg (paw) formed by the pressing part 20 . Since the napkin 1 has a plurality of display compression portions 22 in this manner, the wearer can more easily recognize the front-rear direction of the napkin 1 .

Further, as described above, in the present embodiment, the packaging material 11 is loosened at the folding portions F1 and F2 extending in the front-rear direction to reduce creases. However, it is preferable that the display pressing portion 22 does not straddle the folding portions F1 and F2 along the front-rear direction. By doing so, it is possible to prevent the visibility of the display pressing portion 22 from deteriorating due to creases caused by the folding portions F1 and F2. Therefore, the napkin 1 can be easily attached in the correct front-rear direction.

Further, the display pressing section 22 may have a plurality of portions 26 to 28 as shown in FIG. Specifically, the display compression unit 22 has, from the front, a pattern 26 of a bear's head, a pattern 27 of a bow tie, and a pattern 28 of a bear's leg (paw). The whole body of the bear is represented by these three patterns 26-28. In this case, it is preferable that two or more of the plurality of portions 26 to 28 of the display pressing portion 22 each indicate the front-rear direction. In the display pressing portion 22 shown in FIG. 11 , a bear head pattern 26 and a bear leg pattern 28 indicate the front-rear direction of the napkin 1 . By doing so, it becomes easier for the wearer to recognize the front-rear direction of the napkin 1, and it becomes easier for the wearer to wear the napkin 1 in the correct front-rear direction.

Moreover, unlike FIG. 9, the display pressing portion 22 may straddle the folding portions F1 and F2 along the front-rear direction. Specifically, in FIG. 11, the bear's head pattern 26, which is one portion of the display pressing portion 22, straddles the folding portions F1 and F2. In this case, the folded portions F1 and F2 are easily unfolded by the display pressing portion 22 straddling the folded portions F1 and F2. Therefore, the creases at the folded portions F1 and F2 are reduced, and the flatness of the napkin 1 in the unfolded state is improved. Therefore, it becomes difficult for a gap to occur between the wearer and the napkin 1, and it is possible to suppress the leakage of excrement and discomfort during wearing.

Although the embodiments of the present invention have been described above, the above-described embodiments are intended to facilitate understanding of the present invention, and are not intended to limit and interpret the present invention. Further, the present invention can be modified and improved without departing from its spirit, and it goes without saying that the present invention includes equivalents thereof.

1 sanitary napkin (absorbent article),
1A front region, 1B rear region, 1w wing portion,
2 absorber 3 skin side sheet 4 intermediate sheet 5 non-skin side sheet
6 side sheet, 7 warming agent holding sheet,
8 anti-slip portion (adhesive portion), 81 central adhesive portion (first adhesive portion),
82 front adhesive portion (second adhesive portion), 83 wing adhesive portion (second adhesive portion),
10 package (absorbent article package), 11 packaging material, 12 fastening tape,
13 release paper, 131 central release paper,
132 front release paper, 133 wing release paper,
14 paper side adhesive portion, 141 central adhesive portion (first adhesive portion),
142 front adhesive portion (second adhesive portion), 143 wing adhesive portion (second adhesive portion),
15,16 fixation area, 151,161 central fixation area,
152,162 front fixation area, 153,163 wing fixation area,
20 pressing section, 21 side pressing section, 22 display pressing section,
30 warming agent (agent that exerts a predetermined function), 301 warming agent arrangement area (arrangement area),
31 fragrance agent (agent that exhibits a predetermined function), 311 fragrance agent placement region (placement region),
F1 to F4 folds,

Claims (12)

An absorbent article package comprising an absorbent article and a packaging material, wherein the absorbent article is folded together with the packaging material at a folding portion,
An article-side adhesive portion is provided on the non-skin side of the absorbent article,
whether the absorbent article is directly fixed to the packaging material at the article-side adhesive portion;
Alternatively, a release paper is fixed to the article-side adhesive portion, the packaging material is fixed to the paper-side adhesive portion provided on the release paper, and the absorbent article is fixed to the packaging material via the release paper. and
At least one of the article-side adhesive portion and the paper-side adhesive portion has a first adhesive portion and a second adhesive portion spaced apart in a predetermined direction,
Between the first adhesive portion and the second adhesive portion, the folding portion orthogonal to the predetermined direction is provided,
When the region of the packaging material to which the first adhesive portion is fixed is defined as a first region, and the region of the packaging material to which the second adhesive portion is fixed is defined as a second region,
The second area side of the first area in the predetermined direction in a first state in which the absorbent article package is unfolded and the absorbent article package is stretched while the absorbent article is fixed. The separation distance in the predetermined direction between the end and the end of the second region on the side of the first region in the predetermined direction is
In a second state in which the absorbent article package is unfolded and the packaging material from which the absorbent article is removed is stretched, the end of the first area on the side of the second area in the predetermined direction and the end of the second area in the predetermined direction shorter than the separation distance in the predetermined direction between the ends of the two regions on the first region side in the predetermined direction,
The absorbent article package has a first portion folded in the predetermined direction by the folding portion and a second portion overlapping the first portion,
The second part is a part having the same layer structure as the first part, in which the absorber is not arranged,
When the maximum thickness of the first portion and the second portion is t,
A package for absorbent articles, wherein a difference between the separation distance in the first state and the separation distance in the second state is πt/2−t or more. The absorbent article package according to claim 1,
The difference between the separation distance in the first state and the separation distance in the second state is π
An absorbent article package characterized by being t-2t or more. The absorbent article package according to claim 1 or 2,
A package for absorbent articles, wherein a difference between the separation distance in the first state and the separation distance in the second state is πt or less. The absorbent article package according to any one of claims 1 to 3,
The absorbent article package, wherein the separation distance in the first state is πt or more. The absorbent article package according to any one of claims 1 to 4,
The absorbent article has an arrangement region in which an agent that exhibits a predetermined function is arranged,
The absorbent article, wherein the folded portion between the first adhesive portion and the second adhesive portion does not overlap the arrangement area when the absorbent article package in the first state is viewed from above. package. The absorbent article package according to any one of claims 1 to 5,
When the absorbent article package in the first state is viewed from above, the folded portion between the first adhesive portion and the second adhesive portion has a region overlapping a portion where the thickness of the absorbent article changes. An absorbent article package, characterized by comprising: The absorbent article package according to any one of claims 1 to 6,
When the absorbent article package in the first state is viewed from above, the folded portion between the first adhesive portion and the second adhesive portion covers the first adhesive portion and the second adhesive portion, respectively. An absorbent article package, characterized in that it does not overlap with the release paper. The absorbent article package according to any one of claims 1 to 7,
The absorbent article has an absorbent body and a liquid-impermeable sheet disposed on the non-skin side of the absorbent body,
A package for absorbent articles, wherein the tensile strength of the packaging material in the predetermined direction is higher than the tensile strength of the sheet in the predetermined direction. The absorbent article package according to any one of claims 1 to 8,
The absorbent article has a width direction and a longitudinal direction,
Both side portions in the width direction of the absorbent article are folded at the folding portions along the longitudinal direction,
An absorbent article package, wherein both ends of the absorbent article in the longitudinal direction are folded at the folding portions along the width direction. The absorbent article package according to claim 9,
The folding portion between the first adhesive portion and the second adhesive portion is the folding portion along the longitudinal direction,
The absorbent article package, wherein the folded portion along the width direction straddles the adhesive portion. The absorbent article package according to any one of claims 1 to 10,
The absorbent article has a width direction and a longitudinal direction, and has a compressed portion recessed in the thickness direction of the absorbent article,
The pressing part has a display pressing part showing front and rear in the longitudinal direction, which is visible from the skin surface side of the absorbent article,
The absorbent article, wherein the display compression part straddles the folding part between the first adhesive part and the second adhesive part. The absorbent article package according to any one of claims 1 to 10,
The absorbent article has a width direction and a longitudinal direction, and has a compressed portion recessed in the thickness direction of the absorbent article,
The pressing part has a display pressing part showing front and rear in the longitudinal direction, which is visible from the skin surface side of the absorbent article,
The absorbent article, wherein the display compressed portion does not straddle the folded portion between the first adhesive portion and the second adhesive portion.

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