JP6945404B2 - Outer fixed type disposable diaper - Google Patents

Description

The present invention particularly relates to an outer fixed type disposable diaper used by fixing it to the inner surface of a disposable diaper such as a tape type or a pants type or underwear (hereinafter, also collectively referred to as an outer).

A typical example of such an outer fixed type is a pad type disposable diaper generally called an absorbent pad, which is used by attaching it to the inner surface of the outer for the purpose of reducing the cost of changing diapers and toilet training (for example). See Patent Document 1 or 2).

A general pad-type disposable diaper has a basic structure in which an absorber is interposed between a liquid-permeable top sheet and a liquid-impermeable sheet, and depending on the product, it may not be possible to use an exterior sheet made of non-woven fabric or the like. The back side of the liquid permeable sheet is covered. Further, on the back surface of a general pad-type disposable diaper, a fixing portion made of an adhesive layer or a hook tape of a hook-and-loop fastener (mechanical fastener) is provided, and this fixing portion is locked to the inner surface of the diaper or underwear. By doing so, it is possible to prevent misalignment during mounting.

In absorbent articles, especially diapers for infants, a pattern or print may be applied to the outside opposite to the side of the skin to identify the product or appeal the product features.
In pad-type disposable diapers, an adhesive layer is provided on the outside opposite to the side of the skin, and a release sheet (usually release paper) is provided on the outside in order to attach it to cloth pants or disposable diapers. , Attached to cloth pants and disposable diapers via an adhesive layer.

Japanese Patent No. 4392857 Japanese Unexamined Patent Publication No. 5564293

Even if a design sheet such as a pattern or print is formed on the outside opposite to the side of the skin in order to identify the product and appeal the product features, if an adhesive layer for mounting and a release paper are provided, the design Is hidden.
Therefore, the design may be formed on the release sheet or the design may be formed in a region not hidden by the release sheet.

In such an embodiment, forming a design on this type of release sheet and forming a design in an area not hidden by the release sheet are not related to both designs and the release action of the release sheet.

On the other hand, especially in diapers for infants, there is a tendency that designs that can be enjoyed by parents and children are preferred, and various characters have been devised.

However, the design of the conventional outer fixed type disposable diaper is, for example, to enjoy the character.

Therefore, a main object of the present invention is to provide an outer fixed type disposable diaper that can be of interest to the user by changing the design before and after the peeling action of the peeling sheet.

The present invention that solves the above problems is as follows.
In an outer fixed type disposable diaper provided with a liquid permeable top sheet, a liquid permeable sheet, an absorber interposed between them, and a fixing portion for fixing to the inner surface of the outer.
The fixing portion includes a base sheet integrated with the diaper, a pressure-sensitive adhesive layer formed on the outer surface of the base material sheet, and a release sheet covering the pressure-sensitive adhesive layer. A disposable diaper that is applied to and fixed to the item to be worn.
A first design that is visible from the outer surface side of the base sheet is formed on at least a part of the base sheet or the inner surface side sheet thereof.
A second design visible from the outer surface side is formed on at least a part of the release sheet.
The concealed area on which the second design of the release sheet is formed is an area where the first design is concealed or unknown.
The first design and the second design are related and different from each other.
By peeling the release sheet, the hidden design hidden by the concealed area becomes visible, and at the same time, the hidden design is visible.
The hidden design is related to the first design and is different from each other.
Outer fixed type disposable diaper featuring this.

In the present invention, by peeling the release sheet, for example, a hidden design that is concealed by the release sheet itself that shows the hiding property formed by the release paper, or the release sheet is, for example, a plastic sheet and a part thereof is transparent or translucent. The concealed area of the release sheet, the rest of which is concealable, makes the concealed hidden design visible.
A first design that can be seen from the outer surface side is formed on the base sheet, and a second design that can be seen from the outer surface side is formed on the release sheet, and the first design and the second design are related to each other. And they have different designs.
As a result, when the hidden design hidden by the peeling of the release sheet is visually recognized, this hidden design is related to the second design, so that the new design is revealed by the act of peeling the release sheet. Especially for infant caregivers (usually parents), peeling off the release sheet and putting the diaper on cloth pants or paper diapers feels less burdensome or less burdensome, on the other hand. For infants with some advanced intelligence, they will be interested in the emergence of new designs.
In this respect, it is possible to enhance the appeal of the commercial value to consumers as compared with the case where the release sheet is simply designed.
The present invention is difficult to understand immediately without giving a concrete example. Therefore, it is desirable to understand the embodiment described later with reference to the drawings and reference numerals.

The liquid-impermeable sheet can be used as the base material sheet, but another sheet (for example, the exterior sheet of the embodiment described later) is attached to the liquid-impermeable sheet to form the present invention. It can also be a base sheet.

As described above, when the release sheet is formed from, for example, a release paper, the entire release sheet can be used as a concealing region.

The hidden design can include the same design elements as the second design.

The hidden design can include the same design elements as the second design and different design elements from the second design.

The hidden design can include a modified design motif of the same design motif as the second design.

The hidden design includes the same design element as the second design and an additional design element different from the second design, and proposes an embodiment in which the additional design element is formed by different colors of the pressure-sensitive adhesive layer.

The first design and the hidden design have a plurality of designs having different themes, each of the hidden designs has a theme common to each corresponding first design, and the second design has each theme. We also propose an aspect in which a plurality of designs of the theme to be shown or implied are formed.

Further, the first design and the hidden design each have a plurality of designs having different themes, and each of the hidden designs is a design having a meaning related to each corresponding first design, and the second design. Further proposes an embodiment in which a plurality of designs having meanings indicating or implying each meaning are formed.

The hidden design included the same design elements as the second design and additional design elements different from the second design, and the additional design elements had urination in a urination detection indicator preformed on the substrate sheet. A mode formed by the indicator of the thing can also be adopted.

On the other hand
A first design that is visible from the outer surface side of the base sheet is formed on at least a part of the base sheet or the inner surface side sheet thereof.
A visible second design is formed on the inner surface of the release sheet.
The first design of the base sheet is concealed by the release sheet and
The first design and the second design are related and different from each other.
By peeling the release sheet, the hidden design hidden by the release sheet becomes visible, and the second design becomes visible.
In this aspect, the design formed on the back surface of the release sheet in the process of peeling the release sheet is made interesting in relation to the hidden design, instead of enjoying the design after the release sheet is peeled off.

As described above, according to the present invention, the outer fixed type disposable diaper can be interested in the user by changing the design before and after the peeling action of the peeling sheet.
The term "before and after the peeling action" as used herein means not only the stage where the peeling sheet is completely peeled off, but also the peeling process from the start to the completion of the peeling of the peeling sheet.

It is a top view which shows the surface side of the pad type disposable diaper in the unfolded state. It is a top view which shows the back side of the pad type disposable diaper in the unfolded state. FIG. 1 is a cross-sectional view taken along the line AA of FIG. FIG. 1 is a cross-sectional view taken along the line BB of FIG. FIG. 1 is a cross-sectional view taken along the line CC of FIG. It is a perspective view which shows the wearing procedure of a pad type disposable diaper. It is (a) plan view, (b) DD sectional view, (c) EE sectional view, (d) FF sectional view of the urine external derivative. It is a perspective view which shows the wearing procedure of a pad type disposable diaper. It is explanatory drawing. It is explanatory drawing. It is explanatory drawing. It is explanatory drawing. It is explanatory drawing. It is explanatory drawing. It is explanatory drawing. It is explanatory drawing.

Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings.
1 to 6 show a pad-type disposable diaper 200. This pad-type disposable diaper 200 has a ventral portion F1 extending anteriorly and a dorsal portion B1 extending posteriorly with respect to the center in the anterior-posterior direction. The dimensions of each part can be appropriately determined. For example, the total length (length in the front-rear direction) L1 of the article can be about 150 to 450 mm, and the total width W1 can be about 120 to 200 mm.

The pad-type disposable diaper 200 has a basic structure in which an absorber 23 is interposed between the inner surface of the liquid-impermeable sheet 21 and the liquid-permeable top sheet 22. As the absorbent body 23, a composite fiber of pulp fibers, an aggregate of filaments such as cellulose acetate, or a non-woven fabric is basically used, and a highly absorbent polymer is mixed and fixed as needed. .. If desired, the absorber 23 can be wrapped in crepe paper (not shown). Further, the shape of the absorber 23 can be an appropriate shape such as a band shape in which the front side portion is relatively wider than the rear side portion, a rectangular shape, a trapezoidal shape, or the like. The fiber weighting and the weighting of the absorbent polymer in the absorber 23 can be appropriately determined, but the fiber weighting ^{is preferably about 100 to 600 g / m 2,} and the weight of the absorbent polymer is about 0 to ^{400 g / m 2.} It is preferable to do so.

A liquid-impermeable sheet 21 is provided on the back surface side of the absorber 23 so as to protrude from the peripheral edge of the absorber 23 by a predetermined length. As the liquid-impermeable sheet 21, in addition to a polyethylene film or the like, a sheet having moisture permeability without impairing water shielding can be used from the viewpoint of preventing stuffiness. This water-impervious / moisture-permeable sheet is a microporous sheet obtained by melting and kneading an inorganic filler in an olefin resin such as polyethylene or polypropylene to form a sheet, and then stretching it in a uniaxial or biaxial direction. Can be used.

The outer surface (back surface) of the liquid-impermeable sheet 21 is covered with the exterior sheet 25. Various non-woven fabrics can be used as the exterior sheet 25. As the material fiber constituting the non-woven fabric, olefin-based fibers such as polyethylene or polypropylene, polyester-based synthetic fibers such as polyester-based and amide-based fibers, recycled fibers such as rayon and cupra, and natural fibers such as cotton can be used.
This exterior sheet may not be provided.

The surface side of the absorber 23 is covered with a liquid-permeable top sheet 22. In the illustrated embodiment, the absorber 23 partially protrudes from the side edge of the top sheet 22, but the width of the top sheet 22 can be widened so that the side edge of the absorber 3 does not protrude. As the top sheet 22, a perforated or non-perforated non-woven fabric, a perforated plastic sheet, or the like is used. As the material fiber constituting the non-woven fabric, olefin-based fibers such as polyethylene or polypropylene, synthetic fibers such as polyester-based and amide-based fibers, recycled fibers such as rayon and cupra, and natural fibers such as cotton can be used.

At both ends of the pad-type disposable diaper 200 in the front-rear direction, the exterior sheet 25 and the liquid-permeable top sheet 22 are stretched and bonded to both front and rear sides of the absorbent body 23 from the front and rear ends, and end flaps in which the absorbent body 23 does not exist. Part EF is formed.

On both sides of the pad-type disposable diaper 200, the liquid-impermeable sheet 21 extends outward from the side edge of the absorber 23, and on the inner surface of the portion from this extending portion to the side portion of the top sheet 22. The outer portion 24x in the width direction of the gather sheet 24 is attached over the entire front-rear direction to form a side flap portion SF in which the absorber 23 does not exist. The bonded portion of the material including these can be formed by a hot melt adhesive, a heat seal, and an ultrasonic seal, and is shown by a diagonal line pattern in the drawing.

Absorber-mediated portions other than the end flap portion EF and the side flap portion SF form a main body portion that holds excrement.

As the material of the gather sheet 24, a plastic sheet or a melt blown non-woven fabric can be used, but from the viewpoint of touch to the skin, a non-woven fabric treated with water repellent treatment such as silicone is preferably used.

The portion 24c on the center side in the width direction of the gather sheet 24 extends to the top sheet 22, and an elongated elastic member 24G is hot in a stretched state along the front-rear direction at the end portion on the center side in the width direction. It is fixed with a melt adhesive or the like. The elongated elastic member 24G includes styrene rubber, olefin rubber, urethane rubber, ester rubber, polyurethane, polyethylene, polystyrene, styrene butadiene, silicone, polyester and the like formed in a thread shape, a string shape, a strip shape and the like. , Usually used materials can be used.

In both gather sheets 24 and 24, the outer portion 24x in the width direction is bonded and fixed to the inner surface of the article (the surface of the top sheet 22 and the inner surface of the exterior sheet 25 in the illustrated form) over the entire front-rear direction, and the portion on the center side in the width direction. 24c is attached and fixed to the inner surface of the article (the surface of the top sheet 22 in the illustrated form) at both ends in the front-rear direction, and is fixed to the inner surface of the article (the surface of the top sheet 22 in the illustrated form) between both ends in the front-rear direction. Not. As shown in FIG. 4, this non-fixed portion is a portion that becomes a three-dimensional gather that can stand up against the inner surface of the article (the surface of the top sheet 22 in the illustrated form), and the standing base end 24b is the width of the gather sheet 24. It is located at the boundary between the fixed portion 24x on the outer side in the direction and the fixed portion 24c on the inner side.

Then, as shown in FIGS. 2, 3 and 5, a fixing portion having an adhesive layer 30 provided on the back surface of the exterior sheet 25 of the pad-type disposable diaper 200 and having a peelable sheet 31 that covers the pad type disposable diaper 200 is provided. It is formed.

In the illustrated example, the fixing portion is continuously provided along the front-rear direction, but it may be provided in each of the ventral side portion F1 and the dorsal side portion B1, or may be provided in only one of them. When a plurality of fixing portions are provided, it is preferable to provide at least one of each in the ventral side portion F1 and the dorsal side portion B1.

The fixed portion is preferably sized and arranged so that the entire fixed portion is within the range of the main body portion B0. Specifically, the width W3 of the fixed portion is about 70 to 80% of the width W2 of the absorber 23, and the length L3 in the front-rear direction (total length when a plurality of parts are provided in the front-rear direction) is 30 to 30 to the total length L2 of the absorber 23. It is preferably about 40%.

In the present invention, the fixed portion has been devised in terms of design.

The following embodiment is an example of an outer fixed type disposable diaper, which is an example in which the liquid permeable sheet 21 is a base sheet without having the exterior sheet 25, as shown in FIG. 7, unless otherwise specified. Is.
Further, unlike the form shown in FIG. 2, in the following aspects, the width of the base sheet 50 is appropriately illustrated with respect to the release sheet 52, and the length is shown as the same as the release sheet 52.

The terms "design", "design element", "additional design element", "motif", and "theme" in the present invention should be interpreted as broadly as possible.
"Design" includes pictures, patterns, symbols, patterns, letters and the like.
"Design element" includes the whole or part of the design. Therefore, the "same design element" includes the case where it is exactly the same as the entire target design and the case where it is the same as a part of the target design. The “different design element” includes a case where it is completely different from the entire target design and a case where it is different from a part of the target design.
The "additional design element" means a design element newly (or separately) added to the target design element, which is not included in the target design element.
"Motif" means the central idea that motivated the design expression, or the central composition of the design expression.
"Theme" means an idea or subject that is the basis of a design creation.
Furthermore, it should be noted that the present invention also includes a combination of designs relating to these terms.

<First aspect>
FIG. 8 shows the first aspect, in which the first design D1 visible from the outer surface side of the base sheet 50 is formed on at least a part of the base sheet 50 (or the inner surface side sheet thereof).
A second design D2 that can be seen from the outer surface side is formed on at least a part of the release sheet 52.
A concealed area concealed by the release sheet 52 (or concealed by the second design D2) (in the illustrated embodiment, the entire release sheet 52 forms a concealed area. Of course, a part of the release sheet 52 is used as a concealment area. Aspects of FIG. 14 and FIG. 16) are areas where the hidden design D0 is concealed or unknown. Here, "unknown" means that the entire first design D1 is difficult to see (for example, blurry), or only a part of the hidden design D0 can be seen, and it is difficult to grasp the hidden design D0 as a design. It includes cases.
On the other hand, the first design D1 and the second design D2 are related and have different designs. That is, they are related as a tree design, but differ in that only the first design D1 has an animal (additionally has an animal).
Then, by peeling the release sheet 52, the hidden design D0 hidden by the concealed area becomes visible. The hidden design D0 is an aspect in which the design is related to the first design D1 and is different from each other.

In the first aspect, the hidden design D0 includes the same design elements as the second design D2 (eg, tree design).

The hidden design D0 includes the same design element as the second design D2 (for example, a tree design) and a different design element bd (for example, an animal design) from the second design (for example, a tree design).

Further, the hidden design D0 may include a modified design motif (for example, when the second design D2 is a broad-leaved tree but the modified design motif is a coniferous tree) having the same design motif (tree motif) as the second design D2 (when the second design D2 is a broad-leaved tree). Not shown).

<Second aspect>
In the second aspect shown in FIG. 9, the hidden design D0 has the same design elements (for example, night buildings) as the second design D2 (for example, night buildings) and the second design D2 (for example, night buildings). It contains different additional design elements cd (eg, stars shining in the night sky and windows of buildings), and these additional design elements bd are formed by different colors of the pressure-sensitive adhesive layer 30.

<Third aspect>
In the third aspect shown in FIG. 10, the hidden design D0 (eg, a school of small fish) includes the same design motif (eg, a school of fish) as the second design D2 (eg, a school of small fish), and the hidden design D0 (eg, a school of small fish) is It is formed by different colors of the pressure-sensitive adhesive layer 30. Here, the hidden design D0 (for example, a school of small fish) includes the same design motif (for example, a school of fish) as the first design D1 (for example, a school of adult fish). In the illustrated embodiment, the first design D1 (for example, an adult fish school) and the second design D2 (for example, an adult fish school) have the same design.

<Fourth aspect>
In the fourth aspect shown in FIG. 11, the first design D1 and the hidden design D0 have a plurality of designs (themes related to chickens, themes related to frogs, themes related to Japanese honeywort) having different themes, and each hidden design D0 has a different theme. It is a theme common to each corresponding first design D1 (design of the growth process of each theme), and the second design D2 has multiple design of themes indicating or implying each theme (drawing somewhat unknown). It is formed.

<Fifth aspect>
In the fifth aspect shown in FIG. 12, the first design D1 and the hidden design D0 have a plurality of designs (themes related to chickens, themes related to frogs, themes related to fish) having different themes, and each hidden design D0 has a different theme. The design has a meaning associated with each corresponding first design D1 (character design indicating the meaning of each theme), and the second design D2 has a form in which a plurality of designs having meanings indicating or implying each meaning are formed. be.

<Sixth aspect>
In the sixth aspect shown in FIG. 13, as in the first aspect, the hidden design D0 has the same design elements (for example, tree design and animal) as the second design D2 and additional design elements ad different from the second design. Includes (eg animal tear designs).
Further, this additional design element ad is designed to print on the inner surface (the surface on the wearer side) of the impermeable sheet 21 as the base sheet using water-soluble ink, and further to promote urination with water-colored ink from above. The additional design element ad appears by urination, and the hidden design D0 appears as a state in which the second design D2 is changed.
According to this aspect, the peeling of the release sheet 52, urination, and the change in design can be related to promote communication between the parent and child through urination, and as a result, the toilet is used for the infant. You can train them to do something about it.

In this sixth aspect, when the additional design element ad is formed by a so-called indicator, the indicator includes a coloring agent that exhibits a color reaction upon contact with urine, or a color reaction by detecting the pH in urine. A colorant that shows the above, or a reaction that causes the color to disappear due to a reaction with urine, a reaction that dissolves (disperses) in urine and causes bleeding or disappearance, or other chemicals that show visual changes, with an appropriate solvent or adhesive. It can be formed by applying it to a base sheet in a state of being mixed with an agent (hot melt adhesive or the like). Coloring agents that exhibit a color reaction upon contact with water such as urine include, for example, water-soluble, water-decomposable dyes or leuco dyes and phenolic compounds, acidic substances, and electron-accepting substances that develop the color of the leuco dyes. It is possible to use a colorant composed of a color developer such as. The color that appears due to coloration is not particularly limited.

<7th aspect>
In the embodiment described above, a concealed region for the hidden design D0 is formed by a release sheet 52 (for example, a release paper).
On the other hand, in the seventh aspect shown in FIG. 14, a part of the release sheet 52 is made transparent or translucent on both side portions 52a and 52a as shown in the drawing, for example. As a result, only the central portion in the width direction of the release sheet 52 forms a concealed region with respect to the hidden design D0.

Further, in the aspect already described, the release sheet 52 has a one-to-one relationship with the base sheet 50, but the release sheet 52 may be a plurality of sheets with respect to the base sheet 50, and is shown in FIG. Aspect 7 shows an example in which two release sheets 52 and 52 are provided.

<8th aspect>
The embodiment shown in FIG. 15 is considerably different from the embodiment already described, but is the same as the embodiment already described in that the design changes when the release sheet is peeled off. Then, each aspect of the present invention proposes as a technical idea that "the design changes with the peeling of the peeling sheet as a trigger".
In the embodiment shown in FIG. 15, the first design D1 visible from the outer surface side of the base sheet 50 is formed on at least a part of the base sheet 50 or the inner surface side sheet thereof, and the inner surface of the release sheet 52 is formed with the first design D1. A visible second design D2 is formed, the hidden design D0 of the base sheet 50 is concealed by the release sheet 52, and the first design D1 and the second design D2 are related and different designs. By peeling the release sheet 52, the hidden design D0 hidden by the release sheet 52 becomes visible, and the second design D2 also becomes visible.

In this case, it is desirable that the second design D2 is also related to the hidden design D0.
In the aspect shown in FIG. 15, the first design D1 is a sea wave, and the second design D2 is a design in which a dolphin jumps from the sea wave.
As shown in the figure, an appropriate design, for example, the same design as or related to the first design D1, can be formed on the outer surface of the release sheet 52.

<Ninth aspect>
The aspect shown in FIG. 16 is similar to the eighth aspect shown in FIG.
That is, a part of the release sheet 52 is made transparent or translucent on both side portions 52a and 52a as shown in the figure, for example.
As a result, the first design formed on the outer surface of the base sheet 50 can be visually recognized without peeling the release sheet 52.
The central portion of the release sheet 52 in the width direction itself forms a concealed region of the hidden design D0.
By peeling the release sheet 52, the hidden design D0 hidden by the release sheet 52 becomes visible, and the second design D2 becomes visible.

According to the eighth aspect and the ninth aspect, it is possible to enjoy a dynamic design change in relation to the design before the peeling, triggered by the peeling of the peeling sheet 52.

The present invention has been described above by taking some aspects as examples. The design change triggered by the peeling of the peeling sheet contains many educational elements. In addition, it contains many elements that parents and children can enjoy. It also helps promote communication between parents and children.
As a result, the appeal of such disposable diaper products is enhanced.

The present invention can also be used for disposable diapers in forms other than pad-type disposable diapers as long as they are fixed to the inner surface of the outer.

21 ... Liquid permeable sheet, 22 ... Top sheet, 23 ... Absorber, 24 ... Gather sheet, 25 ... Exterior sheet, 30 ... Adhesive layer, 31 ... Release sheet, 50 ... Base sheet, 52 ... Release sheet, D0 ... Hidden design, D1 ... 1st design, D2 ... 2nd design, ad ... Additional design element, bd ... Different design element, cd ... Additional design element, 100 ... Outer, 200 ... Pad type disposable diaper.

Claims (11)

In an outer fixed type disposable diaper provided with a liquid permeable top sheet, a liquid permeable sheet, an absorber interposed between them, and a fixing portion for fixing to the inner surface of the outer.
The fixing portion includes a base sheet integrated with the diaper, a pressure-sensitive adhesive layer formed on the outer surface of the base material sheet, and a release sheet covering the pressure-sensitive adhesive layer. A disposable diaper that is applied to and fixed to the item to be worn.
A first design that is visible from the outer surface side of the base sheet is formed on at least a part of the base sheet or the inner surface side sheet thereof.
A second design visible from the outer surface side is formed on at least a part of the release sheet.
The concealed area on which the second design of the release sheet is formed is an area where the first design is concealed or unknown.
The first design and the second design are related and different from each other.
By peeling the release sheet, the hidden design hidden by the concealed area becomes visible, and at the same time, the hidden design is visible.
The hidden design is related to the first design and is different from each other.
Outer fixed type disposable diaper featuring this. The outer fixed type disposable diaper according to claim 1, wherein the liquid permeable sheet is the base material sheet. The outer fixed type disposable diaper according to claim 1, wherein the entire release sheet is the concealed area. The outer fixed type disposable diaper according to claim 3, wherein the hidden design includes the same design elements as the second design. The outer fixed type disposable diaper according to claim 3, wherein the hidden design includes the same design element as the second design and a design element different from the second design. The outer fixed type disposable diaper according to claim 3, wherein the hidden design includes a modified design motif having the same design motif as the second design. The outer fixing according to claim 3, wherein the hidden design includes the same design element as the second design and an additional design element different from the second design, and the additional design element is formed by a different color of the pressure-sensitive adhesive layer. Type disposable diapers. The first design and the hidden design have a plurality of designs having different themes, each of the hidden designs has a theme common to each corresponding first design, and the second design has each theme. The outer fixed type disposable diaper according to claim 3, wherein a plurality of designs of the theme to be shown or implied are formed. The first design and the hidden design have a plurality of designs having different themes, each of the hidden designs is a design having a meaning related to each corresponding first design, and the second design is each. The outer fixed type disposable diaper according to claim 3, wherein a plurality of designs having meanings indicating or implying meanings are formed. The hidden design included the same design elements as the second design and additional design elements different from the second design, and the additional design elements had urination in a urination detection indicator preformed on the substrate sheet. The outer fixed type disposable diaper according to claim 3, which is formed by the indicator of the object. In an outer fixed type disposable diaper provided with a liquid permeable top sheet, a liquid permeable sheet, an absorber interposed between them, and a fixing portion for fixing to the inner surface of the outer.
The fixing portion includes a base sheet integrated with the diaper, a pressure-sensitive adhesive layer formed on the outer surface of the base material sheet, and a release sheet covering the pressure-sensitive adhesive layer. A disposable diaper that is applied to and fixed to the item to be worn.
A first design that is visible from the outer surface side of the base sheet is formed on at least a part of the base sheet or the inner surface side sheet thereof.
A visible second design is formed on the inner surface of the release sheet.
The first design of the base sheet is concealed by the release sheet and
The first design and the second design are related and different from each other.
By peeling the release sheet, the hidden design hidden by the release sheet becomes visible, and the second design becomes visible.
Outer fixed type disposable diaper featuring this.

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