JP2022087750A - Absorbent article - Google Patents

Abstract

To provide an absorbent article capable of making a user to recall easily cool feeling or comfortable feeling.SOLUTION: An absorbent article (1) has an absorbent body (10), and a girth member (20) bonded to the non-skin side of the absorbent body (10), and further has a cold feeling agent arrangement area (70) where a cold feeling agent is provided, and a visible area (80) showing existence of the cold feeling agent. When viewing in the thickness direction in the state where the absorbent article (1) is developed, the cold feeling agent arrangement area (70) and the visible area (80) are duplicated or adjacent at least partially.SELECTED DRAWING: Figure 4

Description

The present invention relates to an absorbent article.

Conventionally, in absorbent articles such as pants-type disposable diapers equipped with a waistline member and an absorbent body, the technique of arranging functional materials such as cooling agents and fragrances on the waistline member in order to give a refreshing feeling to the wearer is known. Has been done. For example, Patent Document 1 describes a pants-type absorbent article containing a fragrance that emits an aroma component into the atmosphere under atmospheric pressure in the waist region of the ventral side A and the dorsal side C (corresponding to a waistline member). It has been disclosed.

Japanese Unexamined Patent Publication No. 2018-102612

The cooling sensation agent and fragrance (functional material) provided in the absorbent article as disclosed in Patent Document 1 are generally colorless and transparent, and are often invisible. Therefore, it is difficult to remind the user who has the absorbent article of a refreshing feeling and a comfortable feeling.

The present invention has been made in view of the above-mentioned conventional problems, and an object of the present invention is to provide an absorbent article that easily reminds a user of a refreshing feeling and a comfortable feeling.

The main invention for achieving the above object is an absorbent article having a liquid-absorbing absorbent body and a waistline member joined to the non-skin side of the absorbent body, provided with a cooling sensation agent. It has a cooling sensation agent placement area and a visual recognition area indicating the presence of the cooling sensation agent, and when the absorbent article is unfolded and viewed in the thickness direction, the cooling sensation agent placement area is used. It is an absorbent article characterized in that the visible area overlaps or is adjacent to at least a part thereof.
Other features of the present invention will be clarified by the description in the present specification and the accompanying drawings.

According to the present invention, it is possible to provide an absorbent article that easily reminds a user of a refreshing feeling and a comfortable feeling.

It is a schematic perspective view of the diaper 1. It is a top view of the diaper 1 in the expanded and extended state. FIG. 2 is a schematic cross-sectional view taken along the line AA of FIG. It is a top view which shows an example of the arrangement of the cooling sensation agent arrangement area 70 and the visual recognition area 80 in the expanded and extended state diaper 1. It is a figure explaining the positional relationship between the wearer's body and the cooling sensation agent arrangement area 70 at the time of wearing a diaper 1. It is a figure which shows an example which changed the arrangement of a visual recognition area 80. It is a top view which shows the modification of the viewing area 80. It is a top view which shows the other modification of the viewing area 80. 9A to 9C are diagrams illustrating an example of how to fold the diaper 1 in the pants-shaped state when packaging the diaper 1. It is schematic cross-sectional view which shows the modification of the waist circumference member 20 of a diaper 1.

The description of this specification and the accompanying drawings will clarify at least the following matters.
An absorbent article having a liquid-absorbing absorbent body and a waistline member joined to the non-skin side of the absorbent body, the cooling sensation agent placement region provided with a cooling sensation agent, and the cooling agent. It has a visual area indicating the presence of a sensitizer, and when the absorbent article is unfolded and viewed in the thickness direction, the cooling sensitizer placement area and the visual area are at least partially overlapped or overlapped. Absorbent articles characterized by being adjacent.

According to such an absorbent article, the user can recognize that the absorbent article is provided with a cooling sensation agent by visually recognizing the viewing area. This makes it easier for the user to recall a feeling of coolness and comfort.

The absorbent article has a through hole that penetrates at least one of the plurality of sheets constituting the waist circumference member in the thickness direction, and the first opening region provided with the plurality of through holes. It has a second opening region in which the number of through holes provided per unit area is smaller than that of the first opening region, and the visible area is the first opening region and the second opening region. It is desirable that it is one of the areas.

According to such an absorbent article, by visually identifying a region having a pore opening rate different from that of the surroundings, the user is made to recognize the presence of a cooling sensation agent, and it is easy to evoke a feeling of coolness and comfort. be able to.

In such an absorbent article, a first colored region in which at least a part of the region is colored with a predetermined color and a second colored region colored or not colored with a color different from the predetermined color are provided. It is desirable that the visible area is one of the first colored area and the second colored area.

According to such an absorbent article, by visually distinguishing an area having a color different from the surroundings, it is possible to make the user recognize the presence of the cooling sensation agent and to easily remind the user of a refreshing feeling and a feeling of comfort. can.

The absorbent article has a vertical direction and a horizontal direction that intersect with each other, and the waistline member has a plurality of waistline elastic members that expand and contract in the left and right direction, and the waistline elastic member is colored with a predetermined color. The first elastic member colored region and the second elastic member colored region in which the waistline elastic member is colored or not colored in a color different from the predetermined color are provided, and the visible region is the first visible region. It is desirable that it is either one of the 1 elastic member colored region and the 2nd elastic member colored region.

According to such an absorbent article, by visually identifying the area where the elastic member having a color different from the surroundings is arranged, the user is made to recognize the presence of the cooling sensation, and the feeling of coolness and comfort is achieved. It can be easy to recall the feeling.

In such an absorbent article, it is desirable that the predetermined color is a color included in the range of 5GY to 5PB of the Munsell color wheel.

According to such absorbent articles, cool colors contained in the range of 5GY to 5PB (green to blue) of the Mansell hue circle generally make the person feel cold or cold and produce a calming effect. Since it is a color, by visually recognizing such cool colors, it is possible to make it easier for the user to recall the refreshing feeling and the comfortable feeling caused by the cooling sensation agent.

Such an absorbent article has a folding line for bending a part of the area of the absorbent article when the absorbent article is folded, and when viewed in the thickness direction, the visible area and the visible area. It is desirable to have a portion that overlaps with the bending line.

According to such an absorbent article, the absorbent article is deformed convexly in the thickness direction at the bending line, and the sheet members are brought into close contact with each other in the thickness direction at the apex of the convex shape. Therefore, the visible area comes into close contact with the other sheet members in the thickness direction, so that the color looks darker. This makes it easier for the user to recognize the presence of the cooling sensation agent.

The absorbent article has a vertical direction and a left-right direction intersecting each other, and the girth member has a front girth portion and a rear girth portion, and the front side is provided at both ends in the left-right direction. It has a side joint portion that joins the waist circumference portion and the posterior waist circumference portion, and has a portion where the visible area and the side joint portion overlap when viewed in the thickness direction. desirable.

According to such an absorbent article, in the portion overlapping with the side joint portion, the visible region (colored portion) is pressed against the front waist circumference portion and the rear waist circumference portion in the thickness direction so that the color looks dark. Become. Therefore, it is possible to make it easier for the user to recognize the presence of the cooling sensation agent.

The absorbent article has a vertical direction and a horizontal direction intersecting each other, and the visual recognition area includes a first colored area in which at least a part of the area is colored with a predetermined color, and the predetermined color. Of the second colored regions colored or not colored in different colors, the first visible region, which is one of the regions, and the girth elastic member provided on the girth member and expanding and contracting in the left-right direction are the predetermined. A region of either a first elastic member colored region colored with the color of the above and a second elastic member colored region in which the waist circumference elastic member is colored or not colored with a color different from the predetermined color. From the second viewing area, the first opening area provided with a plurality of through holes penetrating at least one of the plurality of sheets constituting the waist circumference member in the thickness direction, and the first opening area. Also has a third visible area, which is one of the second open areas having a small number of through holes provided per unit area, and when viewed in the thickness direction, It is desirable that at least two of the first viewing area, the second viewing area, and the third viewing area have overlapping portions.

According to such an absorbent article, the overlapping of two or more types of visible areas makes it possible to further enhance the user's visibility and make it easier to recognize the presence of the cooling sensation agent. Therefore, it is possible to make it easier to recall the refreshing feeling and the comfortable feeling of the absorbent article.

It is desirable that the visible area of the absorbent article is provided on the waistline member.

According to such an absorbent article, the user can easily recognize that the cooling sensation agent is provided on the waist circumference member, and can easily recall a refreshing feeling and comfort in the waist circumference region where sweating is likely to occur when worn. Therefore, the user can wear the absorbent article with peace of mind.

It is desirable that the absorbent article has a vertical direction and a horizontal direction intersecting each other, and the visual recognition area is arranged above the central position of the waist circumference member in the vertical direction.

According to such an absorbent article, when worn, the upper region of the waistline member has a larger amount of sweating and sweat tends to accumulate, so that stuffiness is more likely to occur. Therefore, by arranging the visual recognition area above the central position in the vertical direction, it is possible to make it easier for the user to recognize that the cooling sensation agent is provided in the upper area.

It is desirable that the girth member of the absorbent article has a front girth portion and a posterior girth portion, and the visible area is provided in the posterior girth portion.

According to such absorbent articles, the wearer's body usually has more sweat glands on the posterior (dorsal) waistline than on the anterior side and is more likely to sweat, so the visible area around the posterior waistline. By arranging the above and making the user aware of the presence of the cooling sensation, it is possible to make it easier for the user to recall a feeling of coolness and comfort on the back side where sweat is easy to sweat.

In the absorbent article, the waistline member has a skin-side sheet, a non-skin-side sheet, and a skin-side sheet laminated on the skin-side of the skin-side sheet, and the visual recognition area is the above-mentioned. It is desirable that it is provided on the skin sheet.

According to such an absorbent article, the user can easily see the visible area on the skin side surface of the waist circumference member, so that when the absorbent article is worn, the user cools the vicinity of the skin side surface of the waist circumference member that comes into contact with the wearer's skin. It is easy to recognize that a sensory agent is provided, and it is easier to recall a feeling of coolness and comfort.

It is desirable that the absorbent article has a vertical direction and a horizontal direction intersecting each other, and the visual recognition area has a discontinuous portion in at least one of the vertical direction and the horizontal direction. ..

According to such an absorbent article, since the visible area has a discontinuous portion, a contrast is likely to occur at the boundary portion between the continuous portion and the discontinuous portion of the visible area, and the user can see the landing visible area. It will be easier to identify. This makes it easier for the user to recognize the presence of the cooling sensation agent.

Such an absorbent article has a vertical direction and a horizontal direction intersecting each other, and when packaged, the absorbent article is folded at at least one of the vertical direction and the horizontal direction, and in the folded state, the said article. It is desirable that at least a part of the visible area is visible.

According to such an absorbent article, the visible area can be visually recognized from the outside in the folded state. Therefore, when the user takes out the absorbent article from the package, the visible area can be visually recognized. It is possible, and it becomes possible to recognize that a cooling sensation agent is provided. Therefore, it is possible to easily remind the user of a refreshing feeling and a feeling of comfort even before the start of use of the absorbent article.

In such an absorbent article, it is desirable that the area of the cooling sensation agent placement area is larger than the area of the visible area.

According to such an absorbent article, the user can easily understand at a glance that the cooling sensation effect by the cooling sensation agent is generated within the range where the visual recognition area is arranged. This allows the user to wear the absorbent article with peace of mind.

In the absorbent article, the waistline member has a skin-side sheet, a non-skin-side sheet, and a skin-side sheet laminated on the skin-side of the skin-side sheet, and the visual recognition area is the above-mentioned. It is desirable that the cooling sensation agent placement region is provided over the entire skin surface sheet, and is provided in a partial region of the skin surface sheet.

According to such an absorbent article, the visible area is arranged in a wide range (whole) of the skin surface sheet, so that the user feels cold in a wide range of the waist circumference area when wearing the absorbent article. It is easy to understand that the effect is produced and a feeling of coolness and comfort can be obtained.

The absorbent article has a vertical direction and a horizontal direction intersecting each other, and the visual recognition area is provided in the central portion of the left-right direction, and the cooling agent placement area is not provided. Is desirable.

According to such an absorbent article, the central portion in the left-right direction is a region where it is difficult to come into contact with the wearer's skin when wearing the absorbent article and it is difficult to contribute to a refreshing feeling and a feeling of comfort. By not providing the cooling sensitizer, the cost of arranging the cooling sensitizer can be reduced. On the other hand, since the viewing area is arranged in the central portion, the user recalls that the cooling sensation effect is generated as a whole of the viewing area, so that the absorbent article can be worn with peace of mind.

=== Embodiment ===
As the type-absorbent article according to the present invention, a pants-type disposable diaper (hereinafter, also referred to as “diaper 1”) will be described as an example. However, the absorbent article according to the present invention shall also include shorts type napkins and other pants (shorts) type absorbent articles.

<Composition of diaper 1>
FIG. 1 is a schematic perspective view of the diaper 1. FIG. 2 is a plan view of the unfolded and stretched diaper 1. FIG. 3 is a schematic cross-sectional view taken along the line AA of FIG. The "stretched state" of the diaper 1 is a state in which the entire diaper 1 (the entire product) is stretched without wrinkles. It refers to a state in which the dimensions of the waist member (20, etc.) are extended until they match or are close to the dimensions of the individual member.

In the pants-shaped state shown in FIG. 1, the diaper 1 has a vertical direction, a horizontal direction, and a front-rear direction that intersect with each other, and has a waist circumference opening BH and a pair of leg circumference openings LH and LH. The upper side in the vertical direction corresponds to the waist opening BH side, and the lower side corresponds to the inseam side. In addition, the front side in the anteroposterior direction corresponds to the ventral side of the wearer, and the rear side corresponds to the dorsal side of the wearer. Further, in the unfolded state of FIG. 2, the diaper 1 has a vertical direction and a horizontal direction that intersect each other. The vertical direction is a direction along the vertical direction in FIG. 1, and corresponds to the longitudinal direction of the absorbent body 10. The lateral direction is a direction along the left-right direction in FIG. Further, as shown in FIG. 3, the direction in which the materials constituting the diaper 1 are laminated is defined as the thickness direction. The side in contact with the wearer's skin in the thickness direction is the skin side, and the opposite side is the non-skin side.

The diaper 1 has a liquid-absorbing absorbent main body 10 and a waist circumference member 20 arranged on the non-skin side of the absorbent main body 10. The girth member 20 has a front girth portion 30 corresponding to the front body of the diaper 1 and a posterior girth portion 40 corresponding to the back body of the diaper 1. That is, the diaper 1 of the present embodiment has an absorbent main body 10 which is applied to the crotch portion of the wearer and absorbs excrement such as urine as the first part, and the ventral side of the wearer as the second part. It is a so-called three-piece type diaper having a front waist circumference portion 30 covering the portion and a rear waist circumference portion 40 covering the back side portion of the wearer as a third component.

In the unfolded state of FIG. 2, the anterior girth portion 30 and the rear girth portion 40 are arranged in parallel with a vertical distance from each other, and the absorbent main body 10 is hung between them. Then, the end portions 10ea and 10eb in the longitudinal direction of the absorbent main body 10 (corresponding to the vertical direction in FIG. 2) are joined and fixed to the skin side of the nearest waist circumference portions 30 and 40 via the main body joint portion 60, respectively. There is. Specifically, in the front overlapping region OL30 where the absorbent main body 10 and the front waist circumference portion 30 overlap in the thickness direction, the front main body joining portion 61 (main body joining) formed by an adhesive such as a hot melt adhesive. The non-skin side surface of the absorbent body 10 and the skin side surface of the front waist circumference portion 30 are joined by the portion 60) (see FIGS. 2 and 3). Similarly, in the rear overlapping region OL40 where the absorbent main body 10 and the rear waist circumference portion 40 overlap in the thickness direction, the rear main body joint portion 62 (main body) formed by an adhesive such as a hot melt adhesive. The non-skin side surface of the absorbent body 10 and the skin side surface of the rear waist circumference portion 40 are joined by the joint portion 60).

Then, from this unfolded state, the absorbent main body 10 is folded in half with the center position CL in the vertical direction as the folding position (bi-fold line). In this folded state, the front waist circumference portion 30 and the rear side waist circumference portion 40 facing each other are joined and connected to each other at the side portions 30sw and the side portions 40sw on both sides in the left-right direction, and the pair of side joining portions 50 and 50 are formed. It is formed. That is, the front side waist circumference portion 30 and the rear side waist circumference portion 40 are formed in an annular shape by the pair of side joint portions 50, 50. The side bonding portion 50 is formed by a known bonding means such as welding or adhesion. As a result, the diaper 1 is in a pants-type state in which the waist opening BH and the pair of leg openings LH and LH are formed as shown in FIG.

(Absorbable body 10)
The absorbent body 10 has an absorbent core 11 that absorbs excrement, a top sheet 12 that is arranged on the skin side in the thickness direction of the absorbent core 11, and a non-skin side of the absorbent core 11. It also has a back sheet 13 (see FIG. 3). However, the absorbent main body 10 may include a seat member other than this. For example, a second sheet (not shown) may be provided between the top sheet 12 and the absorbent core 11 in the thickness direction.

The absorbent core 11 is a member that absorbs and retains excrement such as urine, and is formed of, for example, a liquid absorbent fiber such as a pulp fiber mixed with a highly absorbent polymer (SAP). The outer peripheral surface of the absorbent core 11 may be covered with a liquid-permeable sheet member (core wrap sheet 11b) such as tissue paper or non-woven fabric. The absorbent core 11 of the present embodiment has a constricted portion 11c having a narrowed width in the left-right direction between the front end and the rear end in the longitudinal direction, and has a plan view as shown in FIG. It has an approximately hourglass shape. The constricted portion 11c is a portion sandwiched between both legs of the wearer when the diaper 1 is worn, and the length of the portion in the left-right direction is short (narrow width), so that the absorbent core 11 Makes it easier to fit in the wearer's crotch.

The top sheet 12 is a liquid permeable sheet, and for example, a hydrophilic air-through nonwoven fabric, a spunbonded nonwoven fabric, or the like is used. The top sheet 12 may be configured so that both sides in the left-right direction are folded back from the skin side in the thickness direction to the non-skin side to wrap the absorbent core 11 (not shown in FIG. 3).

The back sheet 13 has a two-layer structure of a liquid-impermeable sheet 13a and a hydrophobic exterior sheet 13b arranged on the non-skin side thereof. As the liquid impermeable sheet 13a, for example, a resin film or the like is used, and as the exterior sheet 13b, for example, a flexible non-woven fabric is used.

Further, a pair of leak-proof wall portions (not shown in FIG. 3) may be provided on both left and right sides of the absorbent main body 10 along the vertical direction (longitudinal direction of the absorbent main body 10). For example, in the left-right direction (horizontal direction), a part of the exterior sheet 13b may extend outward from both ends of the absorbent core 11 and be bent toward the skin to form a pair of leak-proof wall portions. can. By providing such a leak-proof wall portion, it becomes easy to prevent the excrement absorbed by the absorbent main body 10 from leaking sideways when the diaper 1 is worn.

(Front waist circumference 30)
As shown in FIG. 3, the front waist circumference portion 30 is a non-skin side sheet 31 arranged on the skin side in the thickness direction and a non-skin side sheet laminated so as to be adjacent to the non-skin side of the skin side sheet 31. It has a waist-side elastic member 35 provided between the skin-side sheet 31 and the non-skin-side sheet 32 in the thickness direction.

The skin-side sheet 31 and the non-skin-side sheet 32 are rectangular sheet members in a plan view as shown in FIG. 2, and are formed of, for example, SMS (spunbond-meltblown-spunbond) non-woven fabric.

The waistline elastic member 35 is formed of, for example, thread rubber or the like, and is arranged between the skin-side sheet 31 and the non-skin-side sheet 32 side by side in the vertical direction, and is attached in a state of being extended in the left-right direction. ing. Due to the elasticity developed by the waistline elastic member 35, the front waistline portion 30 fits the wearer's ventral waistline.

The waistline elastic member 35 can be attached using an adhesive such as a hot melt adhesive. For example, the waistline elastic member 35 can be attached by applying a hot melt adhesive to the waistline elastic member 35, stretching it at a predetermined elongation ratio, and sandwiching it between the skin side sheet 31 and the non-skin side sheet 32. That is, the skin-side sheet 31 and the non-skin-side sheet 32 are joined by an adhesive via the waistline elastic member 35. The waistline elastic member 35 may be attached by applying the adhesive to the skin side sheet 31 and the non-skin side sheet 32 side instead of applying the adhesive to the waistline elastic member 35 side.

Further, the skin surface sheet 36 is laminated on a part of the surface on the most skin side of the front waist circumference portion 30. As shown in FIG. 3, the skin surface sheet 36 is a sheet member arranged so as to cover (straddle in the vertical direction) the upper end 10ea (front end in the vertical direction) on the ventral side of the absorbent body 10 from the skin side. Yes, it has a function as a cover sheet. This prevents the upper end edge of the absorbent body 10 from biting into the wearer's skin when the diaper 1 is worn. The skin surface sheet 36 is formed of, for example, an SMS non-woven fabric or the like. Further, the skin surface sheet 36 may be a sheet member having elasticity in the left-right direction (for example, an elastic non-woven fabric).

(Rear waist circumference 40)
The rear waist circumference portion 40 has substantially the same configuration as the front waist circumference portion 30. That is, the rear waist circumference portion 40 includes a skin side sheet 41 arranged on the skin side in the thickness direction, a non-skin side sheet 42 laminated so as to be adjacent to the non-skin side of the skin side sheet 41, and a skin side. It has a plurality of waistline elastic members 45 provided between the sheet 41 and the non-skin side sheet 42 in the thickness direction. Since the configuration of each member is almost the same as that of the front waist circumference portion 30, the description thereof will be omitted.

On the other hand, the external shape of the rear waist circumference portion 40 is different from that of the front waist circumference portion 30. Specifically, as shown in FIG. 2, the rear waist circumference portion 40 has a buttock cover 40b having a substantially trapezoidal shape on the lower side in the vertical direction with respect to the side joint portion 50 (side portion 40sw). The buttock cover 40b is a portion where the width in the left-right direction is narrowed from the upper side in the vertical direction to the lower side, and the outer edge thereof is curved. By providing the buttock cover 40b, it is possible for the rear waist circumference portion 40 to widely cover the buttock portion of the wearer when the diaper 1 is worn.

The buttock cover 40b is provided with an elastic member 47 around the hind legs, such as a rubber thread, as shown in FIG. The hind leg around elastic member 47 is attached between the skin side sheet 41 and the non-skin side sheet 42 in a state of being extended along the peripheral edge portion of the buttocks cover 40b, and the hind leg around elastic member 47 is expressed. Due to the elasticity, when the diaper 1 is worn, the buttocks cover 40b of the rear waist circumference portion 40 is easily fitted to the wearer's buttocks, and it is difficult to be rolled up from the buttocks.

Further, similarly to the front waist circumference portion 30, the skin surface sheet 46 is laminated on a part of the skinmost surface of the rear waist circumference portion 40. As shown in FIG. 3, the skin surface sheet 46 is a sheet member arranged so as to cover (straddle in the vertical direction) the upper end 10 eb (rear end in the vertical direction) on the back side of the absorbent body 10 from the skin side. Is. Further, the rear waist circumference portion 40 of the diaper 1 has a cooling sensation agent arrangement region 70 in which a cooling sensation agent is provided between the skin surface sheet 46 and the skin side sheet 41 in the thickness direction, and the presence of the cooling sensation agent. It has a visual recognition area 80 indicating the above.

<Cooling sensitizer placement area 70>
FIG. 4 is a plan view showing an example of the arrangement of the cooling sensation agent arrangement area 70 and the visual recognition area 80 in the unfolded and extended state diaper 1. As shown in FIG. 4, the diaper 1 of the present embodiment has a cooling sensation agent placement region 70 in which a cooling sensation agent is provided in a part of the region of the rear waist circumference portion 40 of the waist circumference member 20. .. The cooling sensation agent is arranged in a shape such as a planar shape, a linear shape, a spiral shape, a Z shape, a linear shape, a dot shape, or the like.

As the cooling sensation agent used in the present embodiment, those generally known as cooling sensitizers in the art can be used, but they are volatile and activate receptors in nerves of the skin. Those that act on the channel (TRPM8) are preferred. For example, menthol (eg, l-menthol) and its derivatives (eg, menthyl lactate), methyl salicylate, camphor, cucumber extract, essential oils derived from plants (eg, mint, eucalyptus, nutmeg) and the like can be mentioned. Further, the cooling sensation agent placement region 70 may be formed by applying the water-disintegrating microcapsules containing these cooling sensitizers to a predetermined region. Details of the microcapsules will be described later.

In the example of FIG. 4, a pair of cooling sensation agent placement regions 70, 70 are located in the upper region of the rear waist circumference portion 40 in the vertical direction, that is, at a position closer to the upper end 40 eu than the lower end 40 ed of the rear waist circumference portion 40 in the vertical direction. Is provided. The pair of cooling sensation agent placement areas 70, 70 are arranged apart from each other by a predetermined distance gw70 in the left-right direction. The pair of cooling sensation agent placement regions 70 and 70 are located below the first cooling sensation agent placement region 71 and the first cooling sensation agent placement region 71, which extend in a strip shape in the left-right direction (horizontal direction), respectively. It has a second cooling sensation agent arrangement region 72 provided. The first cooling sensation agent placement region 71 and the second cooling sensation agent placement region 72 are arranged apart from each other by a predetermined distance gl70 in the vertical direction.

Further, in the waist circumference member 20 (rear side waist circumference portion 40), the region where the cooling sensation agent (microcapsule) is not provided is defined as the cooling sensation agent non-arrangement region 75. For example, in FIG. 4, the region between the pair of cooling sensation agent placement regions 70 and 70 in the left-right direction (the region represented by gw70) is the cooling sensation agent non-placement region 75. Similarly, the region between the first cooling sensation agent placement region 71 and the second cooling sensation agent placement region 72 in the vertical direction (the region represented by gl70) is also the cooling sensation agent non-placement region 75.

When the diaper 1 is distributed to the market, it is shipped in a folded state as described later (see FIG. 9), but when the product is transported or when the diaper 1 purchased by the user is opened. , The cooling sensation agent (microcapsule) may separate from the cooling sensation agent placement region 70 and adhere to another region (cold sensation agent non-placement region 75) of the diaper 1. Further, when the diaper 1 is worn, the cooling sensation agent (microcapsules) may be similarly separated from the cooling sensation agent placement region 70 by the wearer moving the body or rubbing the non-woven fabrics with each other. .. That is, even in the cooling agent non-arranged region 75, there is a possibility that the cooling agent (microcapsules) is contained with a probability of substantially less than 1%. However, in the present embodiment, the region to which the cooling sensation agent (microcapsules) that have been unintentionally dropped is not included in the cooling sensation agent arrangement region 70. That is, a region where the concentration of the cooling sensation agent (microcapsules) is clearly lower than that of the cooling sensation agent arrangement region 70, or a region where the concentration of the cooling sensation agent is below a certain value is also defined as the cooling sensation agent non-arrangement region 75. ..

FIG. 5 is a diagram illustrating the positional relationship between the wearer's body and the cooling sensation agent placement region 70 when the diaper 1 is worn. As shown in FIG. 5, the cooling sensation agent placement region 70 is arranged at a site on the dorsal side of the wearer that abuts on the region from the posterior superior iliac spine to the iliac ridge when the diaper 1 is worn. There is. In this portion, the protrusion of the iliac ridge makes it easier for the waistline member 20 to come into close contact with the wearer's skin, and makes it easier for the wearer to feel the cooling sensation effect of the cooling sensation agent provided in the cooling sensation agent placement region 70. Can be done. In addition, when the wearer is sitting or in a sleeping posture, the waistline member 20 is pressed against the skin at the site, and sweat is easily sweated. Therefore, by providing the cooling sensation agent placement region 70 at the position shown in FIG. 5, the comfort of the cooling sensation agent can be further enhanced.

Further, the region between the pair of cooling sensation agent placement regions 70 and 70 in the lateral direction (horizontal direction) (the region represented by gw70 in FIG. 4) is a depression between the left and right iliac ridges when the diaper 1 is worn. It is located in (see Fig. 5). Therefore, in this region of gw70, the waist circumference member 20 (rear side waist circumference portion 40) is difficult to adhere to the wearer's body and is difficult to contribute to the cooling sensation effect. That is, even if a discontinuous portion (cooling sensation non-arrangement region 75) is provided in the central portion, it is worn as compared with the case where the cooling sensation agent arrangement region 70 is continuously provided in the left-right direction. It is unlikely that there will be a difference in the refreshing feeling given to the person. Therefore, by not providing a cooling sensation agent in the central portion, it is possible to reduce the cost of arranging the cooling sensation agent while maintaining a good cooling sensation effect. Furthermore, since the cooling sensation agent is not placed in the region where the gap between the body and the posterior waist circumference 40 is the largest between the iliac ridges, air can easily pass through in the vertical direction, and it becomes stuffy when wearing the diaper 1. Is less likely to occur.

By the way, such a cooling sensation agent is usually colorless and transparent, and it is difficult to visually recognize the cooling sensation agent arrangement region 70. However, for example, a cooling sensation can be obtained by performing the following sensory test. The position of the agent placement region 70 can be confirmed. First, the unfolded waistline member 20 is divided into sections (for example, 20 equal parts in the vertical direction and 10 equal parts in the horizontal direction) and cut out, and the divided and cut out members are further divided into predetermined sizes (for example, 2 × 2 cm). ) To cut out multiple sheets. Then, the cut out members are peeled off one by one with, for example, a cold spray to produce a plurality of sample sheets (patches). Next, a PE sheet (polyethylene sheet, which is an example and may be a highly airtight sheet) having the same size as the sample sheet is prepared for each sample sheet. Next, the PE sheet is placed on the first sample sheet, and the first sample sheet is placed inside the upper arm of the inspector in the sensory test, and the time until the inspector feels a cooling sensation effect from the sample sheet is allowed. Measure and record. Such a sensory test is performed on a plurality of sample sheets, and the time is measured and recorded for each. Such sensory tests are performed in all compartments and the time for all sample sheets is measured and recorded. Then, by comparing the time of each sample sheet, it is possible to identify the sample sheet to which the cooling sensation agent has been applied.

Further, for specifying the cooling sensation agent placement region 70, for example, a headspace solid-phase microextraction method can be used. Specifically, a gas chromatograph-mass spectrometer (for example, GCMS-QP2010 Plus manufactured by Shimadzu Corporation) is used, helium is used as the carrier gas, and the measurement mode is the scanning method, and the measurement is performed by the electron shock ionization method. In such a method, each sample sheet is placed in a beaker in a folded state and rolled into small pieces. The top of the beaker is covered with aluminum foil, and the top of the beaker is covered with a plastic paraffin film. SPME fiber (Sigma-Aldrich 50/39 μm DVB / CAR / PDMS, Tableflex 2 cm) is inserted into a beaker through the aluminum foil to extract the aroma component of each sample sheet. The SPME fiber removed from the beaker is then immediately measured with a gas chromatograph-mass spectrometer. The value obtained by dividing each mass obtained by this by the area of the sample sheet is calculated. By comparing the divided values, it is possible to identify the sample sheet to which the cooling sensation agent was applied.

Further, when the cooling sensation agent is encapsulated in microcapsules and the microcapsules are formed from water-soluble starch, it is also possible to visualize the cooling sensation agent placement region 70 by coloring with iodine or the like. .. Further, the sensitive agent placement region 70 may be determined by observing the region where the microcapsules are arranged with an electron microscope or the like and measuring the number of microcapsules provided for each region.

<About microcapsules>
In the present specification, the water-disintegrating microcapsule means a capsule having a diameter of 1 to 1,000 μm and having a space containing a core material (cooling sensation component). The appearance shape of the capsule is not particularly limited as long as it contains the core material and can control the release of the core material, and examples thereof include an appearance shape such as a spherical shape and an amorphous shape. Further, the capsule is a mononuclear type having one space for holding the core material, a multinucleated type having a plurality of spaces for holding the core material, a structure in which fine particle-like core substances are dispersed inside particles, or a liquid state. It can be a matrix type having a structure impregnated with the core material of. Examples of the shape of the space include a spherical shape, an irregular shape, and the like.

In microcapsules, the film material (wall material) containing (or containing) the core material changes due to a chemical stimulus to release the components contained (or contained). Examples of the chemical stimulus include contact between a liquid (aqueous solution) such as a body fluid and a wall material of microcapsules.

By applying these chemical stimuli to the wall material of the microcapsules, the wall material can be disintegrated. As a result, the release of the core material in the microcapsules can be started, or if the core material is gradually released before the stimulation, the degree of the release can be accelerated. When the microcapsules are water-disintegrating as in the present invention, it means that the microcapsules disintegrate to the extent that the contained cooling sensation component is released when they come into contact with a liquid (body fluid) such as sweat. Specifically, when the wall material of microcapsules dissolves in water and disintegrates, when the microcapsules come into contact with a liquid, the microcapsules swell in water and their strength decreases, causing the microcapsules to be destroyed. For example, when it collapses.

In the absorbent article 1 of the present embodiment, when the microcapsules disintegrate due to dissolution in water, the microcapsules are preferably 10 to 300 g, more preferably 20 to 100 g with respect to 100 g of water at 25 ° C. It has a water solubility in the range of 200 g, and more preferably 30-100 g. The water solubility was set to OECD Guidelines No. 2 except that the test temperature was set to 25 ° C. Measured according to the 105 flask method.

Further, the microcapsules are preferably insoluble in the solvent which is the dispersion medium of the microcapsules, and preferably do not swell in the solvent which is the dispersion medium of the microcapsules. This is from the viewpoint of protecting the cooling sensation component contained therein. Materials for water-disintegrating microcapsules include, for example, saccharides such as monosaccharides (eg glucose), disaccharides (eg sucrose), polysaccharides (eg dextrin, glucomannan, sodium alginate, water-soluble starch). Etc.), cyclic oligosaccharides (cyclodextrin), gelatin, water-soluble polymers (eg, polyvinyl alcohol, polyvinyl acetate, etc.) and the like.

The microcapsules are commercially available, and examples thereof include INCAP ™, which is commercially available from Symrise.

Further, the microcapsules are produced by dissolving the material of the microcapsules in water to form an aqueous solution, mixing the cooling sensation component and the surfactant with the aqueous solution, and drying under reduced pressure while spraying the aqueous solution. Can be done.

As the solvent which is the dispersion medium of the above-mentioned microcapsules, it is preferable that the cooling sensation component is kept contained in the microcapsules. For such a solvent, Japanese Patent Publication No. 2016-13154 can be referred to.

<Visible area 80>
As described above, the cooling sensation agent (microcapsule) is often colorless and transparent, and the cooling sensation agent placement area 70 is difficult for the user to see, and it is difficult for the user to recall a refreshing feeling or a comfortable feeling. Therefore, in the present embodiment, a visual recognition area 80 is provided to show the user the existence of the cooling sensation agent arrangement region 70 (cooling sensation agent), and it is easy for the user to recognize that the diaper 1 is provided with the cooling sensation agent. is doing.

In the present embodiment, the visible area 80 is composed of a colored portion 81 in which the skin surface sheet 46 provided on the rear waist circumference portion 40 is colored with a cool color such as blue or green. When viewed in the thickness direction of the diaper 1, the visual recognition area 80 (colored portion 81) has a portion overlapping with the cooling sensation agent placement area 70 (see FIGS. 3 and 4). Therefore, the user can recognize that the diaper 1 is provided with the cooling sensation agent by visually recognizing the visual recognition area 80. This makes it easier to recall a feeling of coolness and comfort.

In FIG. 4, the colored portion 81 is formed over almost the entire area of the skin surface sheet 46, and the visual recognition area 80 is provided in a wide range. However, the range of the visual recognition area 80 is not limited to this, and the thickness direction is not limited to this. It is possible to make the user aware of the presence of the cooling sensation agent if at least a part thereof overlaps with the cooling sensation agent arrangement region 70. Furthermore, the visual recognition area 80 does not necessarily have to overlap with the cooling sensitizer placement area 70. FIG. 6 is a diagram showing an example in which the arrangement of the visual recognition area 80 is changed. In FIG. 6, the colored portion 81a colored in a strip shape in the left-right direction (horizontal direction) so as to be adjacent to the first cooling sensation agent arrangement region 71 and the second cooling sensation agent arrangement region 72 in the vertical direction (vertical direction). , 81b, 81c are provided. Specifically, the coloring portion 81a is provided adjacent to the upper end of the first cooling sensation agent placement region 71, and the coloring portion 81b is provided adjacent to the lower end of the second cooling sensation agent placement region 72, and the first cooling is provided. Colored portions 81c are provided adjacent to the lower end of the sensitizer arranging region 71 and the upper end of the second cooling sensitizer arranging region 72, and the visible region 80 is formed by these colored portions 81a to 81c. Even in the case of FIG. 6, the user can recognize that the cooling sensation agent is provided by visually recognizing the visual recognition area 80 (colored portions 81a, 81b, 81c).

Further, the coloring portion 81 may be provided not on the skin surface sheet 46 but on another sheet member. For example, the colored portion 81 is formed by coloring a part of the skin side sheet 41 and the non-skin side sheet 42 of the rear waist circumference portion 40, and the visible region 80 is formed by the colored portion 81. May be. Also in this case, if the visual recognition area 80 and the cooling sensation agent placement area 70 overlap or are adjacent to each other when viewed in the thickness direction, the user is made to recognize that the diaper 1 is provided with the cooling sensation agent. Can be made easier.

Further, in the present embodiment, the visual recognition area 80 may be an area that can be identified by the user's visual recognition, so that the visual recognition area 80 itself does not necessarily have to be colored. For example, if a certain area of the side waist circumference portion 40 is not colored and the periphery of the certain area is colored so that the certain area can be identified, the certain area ( The uncolored region) may be used as the visual recognition region 80. Further, if a certain area is colored and the surrounding area is colored with a color different from that of the certain area, the certain area can be identified. May be set as the visual recognition area 80.

That is, when at least a part of the region has a first colored region colored with a predetermined color and a second colored region colored or not colored with a color different from the predetermined color. In addition, it is possible to form the visual recognition area 80 by either the first colored area or the second colored area. In the case of FIG. 4, the colored portion 81 corresponds to the first colored region, and the uncolored region other than the colored portion 81 corresponds to the second colored region. In this case, of the first colored region and the second colored region, the first colored region (colored portion 81) constitutes the visual recognition region 80. In this way, by visually identifying the area having a color different from the surroundings, it is possible to make the user recognize the presence of the cooling sensation agent and easily evoke a feeling of coolness and comfort.

When the visual recognition area 80 is composed of the colored portion 81, it is desirable that the color forming the colored portion 81 is a cool color as described above. As the cool color, for example, a color included in the range of 5GY to 5PB (green to blue) of the Munsell color system (Munsell color wheel) can be exemplified. Since such cool colors are generally colors that make the user feel cold or cold and produce a sedative effect, the cooling sensation agent provided in the cooling sensation agent arrangement region 70 is provided to the user. It is possible to make it easier to recall the feeling of coolness and comfort. The color of the coloring portion 81 can be measured using a commercially available color measuring instrument (for example, a color difference meter CR-400 manufactured by Konica Minolta or an equivalent thereof). Further, the color range is not limited to the one represented by the Munsell color system as described above, and may be an equivalent color represented by another Munsell color system. For example, the color may be included in the range of 13 to 24 of the Ostwald color wheel.

<Modification example of the visual recognition area 80>
The visual recognition area 80 in the present embodiment may be an area that can be identified by the user's visual recognition, and can be deformed as follows.

FIG. 7 is a plan view showing a modified example of the visual recognition area 80. In the modified example of FIG. 7, the visual recognition area 80 can be visually identified by coloring a part of the waistline elastic member 45 provided in the rear waistline portion 40 with a cool color as described above. Area. Specifically, the elastic member colored portion 82 (indicated by a thick line in FIG. 7) in which a plurality of waistline elastic members 45 provided in the region overlapping with the skin surface sheet 46 when viewed in the thickness direction is colored is colored. The visible area 80 is configured by the above. When viewed in the thickness direction, at least a part of the visual recognition area 80 (elastic member coloring portion 82) is arranged so as to overlap or be adjacent to the cooling sensation agent arrangement area 70, so that the diaper 1 is cooled. It is possible to make it easier for the user to recognize that the sensory agent is provided.

As described above, the visual recognition area 80 may be an area that can be identified by the user's visual recognition. Therefore, when the waistline elastic member 45 provided in a certain area of the rear waistline portion 40 is not colored and the waistline elastic member 45 provided around the area is colored. If it is possible to identify the certain area, the area (the area where the waistline elastic member 45 is not colored) may be used as the visual recognition area 80.

That is, when the waistline elastic member 45 has a first elastic member coloring region colored with a predetermined color and a second elastic member coloring region where the waistline elastic member 45 is not colored, the first elasticity The visible area 80 can be configured by either the member colored area or the second elastic member colored area. In this way, by visually identifying the elastic member having a color different from that of the surroundings, it is possible to make the user recognize the presence of the cooling sensation agent and easily evoke a feeling of coolness and comfort.

FIG. 8 is a plan view showing another modification of the visual recognition area 80. In the modified example of FIG. 8, the visual recognition area 80 is visually provided with a plurality of through holes 48 penetrating any of the plurality of sheet members constituting the rear waist circumference portion 40 in the thickness direction. It is an area that can be identified. Specifically, the visual recognition area 80 is configured by the opening portion 83 provided with a plurality of through holes 48 penetrating the skin surface sheet 46 in the thickness direction. When viewed in the thickness direction, at least a part of the visual recognition region 80 (opening portion 83) is arranged overlapping or adjacent to the cooling sensation agent arranging region 70, so that the diaper 1 feels cold. It is possible to make it easier for the user to recognize that the agent is provided.

The viewing area 80 may be identifiable by the user's viewing. Therefore, in the rear waist circumference portion 40, the number of through holes 48 provided per unit area in a certain area is small (for example, less than a predetermined number), and the penetrations provided per unit area around the area are small. If the number of holes 48 is large (for example, a predetermined number or more) and it is possible to identify the certain area, the area (the area where the through holes 48 per unit area is less than the predetermined number) is regarded as the visible area 80. May be.

That is, it has a first opening region in which a plurality of through holes 48 are provided, and a second opening region in which the number of through holes 48 provided per unit area is smaller than that in the first opening region. In some cases, the visible area 80 can be configured by either the first opening region or the second opening region. In this way, by visually identifying the region having a different opening rate from the surroundings, it is possible to make the user recognize the presence of the cooling sensation agent and easily remind the user of a refreshing feeling and a comfortable feeling.

Further, the diaper 1 has a visible area 80 (referred to as a first visible area) formed by the colored portion 81 described with reference to FIG. 4, and a visible area 80 (referred to as a first visible area) formed by the elastic member colored portion 82 described with reference to FIG. It may have two or more types of visible areas 80: a visible area 80 (referred to as a second visible area) and a visible area 80 (referred to as a third visible area) composed of the opening portion 83 described with reference to FIG. .. In this case, it is desirable that at least two of the first to third visible regions have overlapping portions when viewed in the thickness direction. By arranging two or more types of visual recognition areas 80 on top of each other, the visibility of the user can be further enhanced and the presence of the cooling sensation agent can be more easily recognized. Therefore, it is possible to make it easier to recall the refreshing feeling and the comfortable feeling of the diaper 1.

<About the arrangement of the visual recognition area 80>
In the diaper 1 of the present embodiment, as shown in FIG. 4 and the like, the waist circumference member 20 is provided with a visual recognition area 80. Since the waistline member 20 is a portion that fits the wearer's waistline area where sweating is likely to occur, there is a risk of causing discomfort to the wearer due to stuffiness or the like when wearing the diaper 1. On the other hand, if the waist circumference member 20 is provided with the visual recognition area 80, the user can easily recognize that the waist circumference member 20 is provided with the cooling sensation agent, and the cooling sensation and comfort due to the cooling sensation agent can be easily recognized. It becomes easier to recall. Therefore, the user can wear the diaper 1 with peace of mind.

Further, the visual recognition area 80 is arranged above the central position in the vertical direction of the waist circumference member 20. In FIG. 4, the visual recognition area 80 is arranged above the intermediate position 40c between the upper end 40eu of the rear waist circumference portion 40 and the lower end 40ed. When wearing the diaper 1, of the area where the waist member 20 comes into contact with the wearer's body, the upper side in the vertical direction (the position closer to the waist opening BH) is more sweaty and sweat is more likely to accumulate, so that stuffiness is more likely to occur. .. Therefore, by arranging the visual recognition area 80 above the central position 40c in the vertical direction, it is possible to make it easier for the wearer (user) to recognize that the cooling sensation agent is provided in the upper area. can.

Further, the visual recognition area 80 is arranged in the rear waist circumference portion 40 of the waist circumference member 20. The human body, which is the wearer of the diaper 1, usually has more sweat glands on the dorsal side (posterior side) than on the ventral side (anterior side), and it is easy to sweat on the dorsal side. Therefore, by arranging the visual recognition area 80 in the rear waist circumference portion 40 to make the user aware of the presence of the cooling sensation agent, it is easier to make the user feel refreshed and comfortable on the back side where sweat is easy to sweat. Can be done.

Further, as shown in FIG. 3, it is desirable that the visual recognition area 80 is provided on the skin surface sheet 46 (36) arranged on the skin side of the waist circumference member 20. With such a configuration, the user can easily see the visual recognition area 80 on the skin side surface of the waist circumference member 20. Therefore, the user can easily recognize that the cooling sensation agent is provided near the skin side surface of the waist circumference member 20 that comes into contact with the wearer's skin when the diaper 1 is worn, and it is easier to recall a refreshing feeling and a comfortable feeling. Become.

Further, it is desirable that the visual recognition area 80 has a discontinuous portion in at least one of the vertical direction and the horizontal direction. If the visible area 80 is continuously formed over the entire waist circumference member 20 and does not have a discontinuous portion, the visible area 80 cannot be distinguished from other areas, so that the user can cool down. It becomes difficult to recognize the existence of the sensitizer. On the other hand, the visual recognition area 80 of the present embodiment has a portion that is discontinuous in either the vertical direction or the horizontal direction. For example, in FIG. 4, the visible area 80 is configured by the colored portion 81 provided on the skin surface sheet 46, but the colored portion 80 has a portion (for example, a portion having a gap gl70) that is discontinuous in the vertical direction. ing. Therefore, a contrast is generated at the boundary between the colored portion 81 and the non-colored portion adjacent to the colored portion 81, and the user can easily identify the colored portion 81 (visual area 80). This makes it easier for the user to recognize the presence of the cooling sensation agent.

Further, it is desirable that the visual recognition area 80 is arranged so as to overlap with the side joint portion 50 connecting the front side waist circumference portion 30 and the rear side waist circumference portion 40. When the visible area 80 is composed of the colored portion 81 of FIG. 4 and the elastic member colored portion 82 of FIG. 7, the portion overlapping with the side joint portion 50 is relative to the front waist circumference portion 30 and the rear waist circumference portion 40. The visible area (colored part) is pressed in the thickness direction, and the color becomes darker. Therefore, since the visual recognition area 80 is easily visible to the user, it is possible to easily recognize the presence of the cooling sensation agent.

Further, it is desirable that the size of the visual recognition area 80 is larger than the size of the cooling sensation agent placement area 70. In the present embodiment, as shown in FIG. 4, the area of the visual recognition area 80 is larger than the area of the cooling sensation agent placement area 70, and the visual recognition area 80 is arranged so as to include the entire cooling sensation agent placement area 70. There is. With such a configuration, the user can easily understand at a glance that the cooling sensation effect by the cooling sensation agent occurs within the range where the visual recognition area 80 is arranged. For example, in the case of FIG. 4, it becomes clear that a refreshing feeling and a comfortable feeling can be easily obtained in the upper region of the rear waist circumference portion 40 in which the viewing area 80 is arranged, so that the user can wear the diaper 1 with peace of mind. You will be able to do it.

In the diaper 1, the visual recognition area 80 is arranged over the entire skin surface sheet 46, and the cooling sensation agent arrangement area 70 is provided in a part of the visual recognition area 80. As described above, the skin surface sheet 46 is a portion that comes into direct contact with the wearer's skin when the diaper 1 is worn. Therefore, by arranging the visible area 80 in a wide range (whole) of such a skin surface sheet 46, when the user wears the diaper 1, a wide cooling sensation effect is generated in the dorsal waist portion. It is easy to understand that a feeling of coolness and comfort can be obtained.

Further, the visual recognition area 80 is arranged in the central portion in the left-right direction of the rear waist circumference portion 40, and the cooling sensation agent arrangement region 70 is not arranged. As described with reference to FIG. 5, when the diaper 1 is worn, the central portion in the left-right direction of the posterior waist circumference portion 40 is located in the recessed portion between the iliac crests. Therefore, even if a cooling sensation agent is provided in this region (central portion in the left-right direction), it is difficult to come into contact with the wearer's skin, and it is difficult to contribute to a refreshing feeling and a feeling of comfort. Therefore, in the diaper 1 of the present embodiment, the cost of arranging the cooling sensation agent can be reduced by not providing the cooling sensation agent in the central portion in the left-right direction. On the other hand, since the visible area 80 is arranged in the central portion, the user can remember that the visual area 80 as a whole has a cooling sensation effect, so that the diaper 1 can be worn with peace of mind.

By the way, the diaper 1 is folded into a compact shape and then distributed on the market in a state of being packaged by a predetermined packaging member. Therefore, in the diaper 1 of the present embodiment, the user can easily recognize the presence of the cooling sensation even in the folded state. 9A to 9C are diagrams illustrating an example of a folding method when packaging the pants-shaped diaper 1.

When folding the diaper 1, first, the ends on both sides in the left-right direction (horizontal direction) are folded from the outside to the inside. In FIG. 9A, the end region 91 on one side (left side) in the left-right direction of the diaper 1 is located on the other side (right side) in the left-right direction and the front side in the front-rear direction along the bending line F1 along the vertical direction (vertical direction). Can be folded. Similarly, the end region 92 on the other side (right side) of the diaper 1 in the left-right direction is bent to one side (left side) in the left-right direction and the front side in the front-rear direction along the bending line F2 along the vertical direction (vertical direction). Be done. Next, as shown in FIG. 9B, the diaper 1 is folded in half in the vertical direction (vertical direction) so that the area 91 and the area 92 are on the inside. Specifically, the region 93 on one side (lower side) in the vertical direction of the diaper 1 is located on the other side (upper side) in the vertical direction and the front side in the front-rear direction along the bending line F3 along the left-right direction (horizontal direction). Can be folded. By undergoing these folding operations, the diaper 1 is finally in a folded state having a compact shape as shown in FIG. 9C. The diaper 1 is packaged in this folded state by a predetermined packaging member, and is distributed on the market as a package of the diaper 1. The method of folding the diaper 1 is not limited to the examples of FIGS. 9A to 9C, and the diaper 1 may be folded by another method.

When the diaper 1 is folded in this way, it is desirable that the viewing area 80 is arranged so as to overlap the folding line. In the example of FIG. 9A, the visual recognition area 80 is arranged so as to overlap the bending lines F1 and F2. Then, when the visual recognition area 80 is bent along the bending lines F1 and F2, the diaper 1 (girth member 20) is deformed convexly in the thickness direction at the bending lines F1 and F2, and the sheet member is formed at the apex of the convex shape. It becomes easier for each other to adhere to each other in the thickness direction. Therefore, when the visible area 80 is formed by the colored portion 81 described with reference to FIG. 4, the colored portion 81 has a thickness different from that of other sheet members (for example, the skin side sheet 41 or the non-skin side sheet 42). By sticking to the direction, the color looks darker. That is, in the folded diaper 1, the visual recognition area 80 becomes easier to see. Therefore, it is possible to make it easier for the user to recognize the presence of the cooling sensation agent.

Further, it is desirable that at least a part of the visible area 80 can be visually recognized while the diaper 1 is folded. If the diaper 1 is folded so that the visible area 80 is on the inside, it becomes difficult to see the visible area 80 from the outside in the folded state. In this case, when the user takes out the diaper 1 from the package, the visual recognition area 80 cannot be visually recognized, so that it is difficult to recognize that the diaper 1 is provided with the cooling sensation agent. On the other hand, in the diaper 1 of the present embodiment, since the visible area 80 can be visually recognized from the outside in the folded state (see FIG. 9C), the time when the user takes out the diaper 1 from the package (see FIG. 9C). That is, before the start of use of the diaper 1), the visual recognition area 80 can be visually recognized, and it becomes possible to recognize that the cooling sensation agent is provided. Therefore, it is possible to easily remind the user of a refreshing feeling and a feeling of comfort even before using the diaper 1.

<Modification example of waist member 20>
FIG. 10 is a schematic cross-sectional view showing a modified example of the waistline member 20 of the diaper 1. FIG. 10 is a diagram corresponding to FIG. 3, and shows a cross-sectional state in the thickness direction of the diaper 1 in the expanded and extended state at the center position in the left-right direction. In this modification, the skin surface sheet 36 is not provided in the front waist circumference portion 30. Then, a part of the non-skin side sheet 32 is folded back at the upper end 30eu of the front waist circumference portion 30 from the non-skin side in the thickness direction to the skin side and from the upper side to the lower side in the vertical direction (vertical direction). It has a portion 32f. Similarly, the skin surface sheet 46 is not provided in the rear waist circumference portion 40, and a folded portion 42f in which a part of the non-skin side sheet 42 is folded back at the upper end 40eu of the rear waist circumference portion 40 is provided. There is. By covering the folded portions 32f and 42f from the skin side so as to straddle the upper ends 10ea and 10eb of the absorbent main body 10, the same functions as the skin surface sheets 36 and 46 are realized. That is, in the modified example of FIG. 10, the folded portions 32f and 42f correspond to the skin surface sheets 36 and 46.

In the modified example of FIG. 10, in the rear waist circumference portion 40, a cooling sensation agent placement region 70 and a visual recognition region 80 are formed between the skin side sheet 41 and the folded portion 42f. Even in such a configuration, the user can easily recognize that the diaper 1 is provided with the cooling sensation agent by visually recognizing the visual recognition area 80, which reminds the user of a refreshing feeling and a comfortable feeling. Can be made easier.

=== Other embodiments ===
Although the embodiments of the present invention have been described above, the above-described embodiments are for facilitating the understanding of the present invention, and are not intended to limit the interpretation of the present invention. Further, it is needless to say that the present invention can be changed or improved without departing from the spirit thereof, and the present invention includes an equivalent thereof.

In the above-described embodiment, a substance such as menthol that acts on the receptor activation channel (TRPM8) has been exemplified as the cooling sensitizer forming the cooling sensitizer arrangement region 70, but the present invention is not limited to this. For example, a fragrance that promotes the wearer's cooling sensation by volatilizing the fragrance component into the atmosphere under atmospheric pressure may be used as the cooling sensation agent. As the fragrance, the same fragrances that have been conventionally used in the art can be used, but for example, when a green herbal-like fragrance (green herbal-like fragrance) is used, mental discomfort is caused. It is possible to make the wearer feel comfortable without giving physical stimulation to the body.

The green herbal-like scent is a scent including a green-like scent (green note) or a herbal-like scent (herbal note). Green-like aroma refers to the refreshing aroma of grass and young leaves. Herbal note is a natural, herbal-like scent that uses herbs. Fragrance compositions containing fragrances with a green herbal-like aroma include cis-3-hexenol, cis-3-hexenyl formate, cis-3-hexenyl acetate, cis-3-hexenyl propionate, cis-3-hexenyl butyrate, Trans-2-hexenal, trans-2-hexenyl, hexyl acetate, styrylyl acetate, 2-methyl-3- (3,4-methylenedioxyphenyl) -propanal (IFF company name, helional), 3 (4)- (5-Ethylbicyclo [2,2,1] heptyl-2)-cyclohexanol, 2-allyloxyglycolate (IFF company name, allyl amylglycolate), 4-methyl-3-decene-5-ol (Givaudan) It preferably contains one or more fragrances selected from (company name, Undecavertor), hexyl aldehyde, 2,4-dimethyl-3-cyclohexenylcarboxyaldehyde (IFF company name, triplar) and phenylacetaldehyde. .. Commercially available products can also be used as these fragrances. Fragrances containing these mainly produce green-like fragrances. Fragrance compositions containing fragrances with a green herbal-like fragrance further include l-menthol, 1,8-cineole, methyl salicylate, citroneral, camphor, borneol, isobornyl acetate, terpinyl acetate, eugenol, anethole, 4-methoxybenzyl. It preferably contains one or more fragrances selected from alcohol and estragole. The fragrances containing these mainly produce herbal-like fragrances.

Even when a fragrance is used as a cooling sensation agent, the mechanism (mechanism) of vaporizing and exerting an effect is the same as that of menthol or the like, so that the same effect as the above-mentioned cooling sensation effect can be obtained.

1 Diapers (absorbent articles),
10 Absorbent body,
10ea upper end (anterior, ventral), 10eb upper end (posterior, dorsal),
11 Absorbent core, 11b core wrap sheet, 11c constriction,
12 top sheet,
13 back sheet, 13a liquid impermeable sheet, 13b exterior sheet,
20 Girth member,
30 Front waistline,
30eu top, 30sw side,
31 skin side sheet, 32 non-skin side sheet, 32f folded part,
35 Girth elastic member,
36 skin sheet,
40 Rear waist circumference, 40b Buttocks cover,
40eu top, 40sw side,
41 skin side sheet, 42 non-skin side sheet, 42f folded part,
45 Girth elastic member,
46 skin sheet, 47 hind leg elastic member, 48 through hole,
50 side joints,
60 body joint,
61 front body joint, 62 rear body joint,
70 Cooling agent placement area,
71 1st cooling sensation agent placement area, 72 2nd cooling sensation agent placement area,
75 Cooling agent non-placement area,
80 viewing area,
81 Colored part, 82 Elastic member colored part, 83 Perforated part,
91 areas, 92 areas, 93 areas,
BH waist opening, LH leg opening,
CL center position (vertical direction, longitudinal direction),
F1 fold line, F2 fold line, F3 fold line,
OL30 front overlap area, OL40 rear overlap area

The main invention for achieving the above object is
An absorbent article having a liquid-absorbing absorbent body and a waistline member joined to the non-skin side of the absorbent body.
A cooling sensation agent placement area provided with a cooling sensation agent,
A visible area indicating the presence of the cooling sensation agent and
Have,
When the absorbent article is unfolded and viewed in the thickness direction, the cooling sensation agent placement region and the visual recognition region are at least partially overlapped or adjacent to each other.
It has a through hole that penetrates at least one of the plurality of sheets constituting the waist circumference member in the thickness direction.
It has a first opening region provided with a plurality of the through holes and a second opening region provided with a smaller number of through holes per unit area than the first opening region.
The visible area is characterized in that it is either one of the first opening area and the second opening area .
Other features of the present invention will be clarified by the description in the present specification and the accompanying drawings.

Claims (17)

An absorbent article having a liquid-absorbing absorbent body and a waistline member joined to the non-skin side of the absorbent body.
A cooling sensation agent placement area provided with a cooling sensation agent,
A visible area indicating the presence of the cooling sensation agent and
Have,
An absorbent article characterized in that, when the absorbent article is unfolded and viewed in the thickness direction, the cooling sensation agent placement region and the visible area are at least partially overlapped or adjacent to each other. The absorbent article according to claim 1.
It has a through hole that penetrates at least one of the plurality of sheets constituting the waist circumference member in the thickness direction.
It has a first opening region provided with a plurality of the through holes and a second opening region provided with a smaller number of through holes per unit area than the first opening region.
An absorbent article characterized in that the visible area is either one of the first opening area and the second opening area. The absorbent article according to claim 1.
At least a part of the region has a first colored region colored with a predetermined color and a second colored region colored or not colored with a color different from the predetermined color.
An absorbent article characterized in that the visible area is either one of the first colored area and the second colored area. The absorbent article according to claim 1.
It has a vertical direction and a horizontal direction that intersect each other,
The waistline member has a plurality of waistline elastic members that expand and contract in the left-right direction.
A first elastic member coloring region in which the waist circumference elastic member is colored with a predetermined color, and a second elastic member coloring region in which the waist circumference elastic member is colored or not colored in a color different from the predetermined color. Have and
An absorbent article characterized in that the visible region is either one of the first elastic member colored region and the second elastic member colored region. The absorbent article according to claim 3 or 4.
The absorbent article, characterized in that the predetermined color is a color included in the range of 5GY to 5PB of the Munsell color wheel. The absorbent article according to any one of claims 3 to 5.
When folding the absorbent article, it has a folding line for folding a part of the area of the absorbent article.
An absorbent article characterized in that it has a portion where the visible region and the bending line overlap when viewed in the thickness direction. The absorbent article according to any one of claims 3 to 6.
It has a vertical direction and a horizontal direction that intersect each other,
The girth member has a front girth portion and a posterior girth portion.
At both ends in the left-right direction, side joining portions for joining the front waist circumference portion and the rear waist circumference portion are provided.
An absorbent article characterized in that the visible area and the side joint portion overlap each other when viewed in the thickness direction. The absorbent article according to claim 1.
It has a vertical direction and a horizontal direction that intersect each other,
The visible area is
At least a part of the region is one of a first colored region colored with a predetermined color and a second colored region colored or not colored with a color different from the predetermined color. The first viewing area and
The first elastic member coloring region in which the waistline elastic member provided on the waistline member and expands and contracts in the left-right direction is colored in the predetermined color, and the waistline elastic member is colored in a color different from the predetermined color. Of the uncolored second elastic member colored region, the second visible region, which is any region,
A first perforated region provided with a plurality of through holes penetrating at least one of the plurality of sheets constituting the waist circumference member in the thickness direction, and a first perforated region provided per unit area than the first perforated region. Of the second opening region where the number of through holes is small, the third visual recognition region, which is any region,
Have,
An absorbent article characterized in that, when viewed in the thickness direction, at least two of the first visible area, the second visible area, and the third visible area have overlapping portions. The absorbent article according to any one of claims 1 to 8.
The visible area is an absorbent article provided on the waistline member. The absorbent article according to claim 9.
It has a vertical direction and a horizontal direction that intersect each other,
The absorbent article, characterized in that the visible area is arranged above the central position of the waist circumference member in the vertical direction. The absorbent article according to claim 9 or 10.
The girth member has a front girth portion and a posterior girth portion.
The visible area is an absorbent article characterized in that it is provided around the rear waistline portion. The absorbent article according to any one of claims 9 to 11.
The waistline member includes a skin-side sheet, a non-skin-side sheet, and a skin-side sheet laminated on the skin-side of the skin-side sheet.
The visible area is an absorbent article provided on the skin surface sheet. The absorbent article according to any one of claims 1 to 12.
It has a vertical direction and a horizontal direction that intersect each other,
An absorbent article characterized in that the visible area has a discontinuous portion in at least one of the vertical direction and the horizontal direction. The absorbent article according to any one of claims 1 to 13.
It has a vertical direction and a horizontal direction that intersect each other,
When packaged, it is folded at at least one place in the vertical direction and the horizontal direction.
An absorbent article characterized in that at least a part of the visible area is visible in a folded state. The absorbent article according to any one of claims 1 to 14.
An absorbent article characterized in that the area of the cooling sensation agent placement area is larger than the area of the visible area. The absorbent article according to claim 15.
The waistline member includes a skin-side sheet, a non-skin-side sheet, and a skin-side sheet laminated on the skin-side of the skin-side sheet.
The visible area is provided over the entire skin surface sheet, and is provided.
An absorbent article characterized in that the cooling sensation agent placement region is provided in a partial region of the skin surface sheet. The absorbent article according to any one of claims 1 to 16.
It has a vertical direction and a horizontal direction that intersect each other,
An absorbent article characterized in that the visual recognition region is provided in the central portion in the left-right direction, and the cooling sensation agent placement region is not provided.

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