JP2021122639A - Absorbent article - Google Patents

Abstract

To provide an absorbent article with high usability, providing a viewer with an emotional effect, and capable of mitigating a user's depression before and during the use.SOLUTION: An absorbent article 1 includes a first colored member (a back sheet 4), a second colored member (an absorber 5) disposed at a side closer to a wearer's skin than the first colored member and having a color different from that of the first colored member, and a color overlap area 17 in which at least parts of both colored members are overlapped in the thickness direction. A color of the color overlap area 17 viewed from a non-skin-side surface Sb of the absorbent article 1 is different from the color of the color overlap area 17 viewed from a skin-side surface Sa of the absorbent article 1, and is also different from the color of the first colored member.SELECTED DRAWING: Figure 1

Description

The present invention relates to absorbent articles such as sanitary napkins.

Absorbent articles such as sanitary napkins typically include an absorber capable of absorbing body fluids such as menstrual blood, a topsheet located closer to the wearer's skin than the absorber, and the absorption. It is composed of a back sheet arranged on the side farther from the wearer's skin than the body.

In Patent Document 1, in order to easily recognize the contour of the absorber when the absorbent article is viewed from the skin-facing surface thereof, the color of the absorber and the color of the skin-facing surface of the back sheet may be different from each other. It is described, specifically, that the absorber is colored green and the back sheet is colored pink (Patent Document 1 [0054]).
Patent Document 2 describes an absorbent article containing a refreshing agent such as menthol, and makes a part or all of the absorbent article a color that matches the color of the underwear worn together with the absorbent article. It is described that it may be colored (Patent Document 2 [0160]).

Japanese Unexamined Patent Publication No. 2017-176741 Special Table 2004-528090

An object of the present invention is to provide an absorbent article which gives an emotional effect to a viewer, can relieve the depressed mood of the user before and during use, and has a good feeling of use.

The present invention has an absorber that has a skin-facing surface that can come into contact with the wearer's skin and a non-skin-facing surface that is located on the side opposite to the skin-facing surface and can absorb body fluids, and the non-skin-facing surface. It is an absorbent article comprising a back sheet forming the above.
In one embodiment of the absorbent article of the present invention, the absorbent article is located closer to the wearer's skin than the first colored member and the first colored member, with the color of the first colored member. The present invention includes a second colored member having a different color, and has a color overlapping region in which at least a part of both colored members overlap in the thickness direction.
In one embodiment of the absorbent article of the present invention, the color visible from the non-skin facing surface of the absorbent article in the color overlap region is visible from the skin facing surface of the absorbent article in the color overlapping region. It is different from the color and also different from the color of the first colored member.
Other features, effects and embodiments of the present invention are described below.

The absorbent article of the present invention can give an emotional effect to the viewer, relieve the depressed mood of the user before and during use, and has a good feeling of use.

FIG. 1 (a) is a plan view schematically showing a sanitary napkin according to an embodiment of the absorbent article of the present invention on the skin-facing surface side (top sheet side) of the sanitary napkin. Is a schematic plan view of the sanitary napkin on the non-skin facing surface side (back sheet side). FIG. 2 is a cross-sectional view schematically showing an embodiment of the I-I cross section of FIG. FIG. 3 is a cross-sectional view schematically showing another embodiment of the I-I cross section of FIG. FIG. 4 is a schematic perspective view of the individual body of the sanitary napkin shown in FIG. FIG. 5 is a perspective view schematically showing the inner surface side (sanitary napkin side) of the individual body body shown in FIG. 4 in a partially expanded state. FIG. 6 is a plan view schematically showing the inner surface side (sanitary napkin side) in the unfolded state of the individual body shown in FIG.

Hereinafter, the present invention will be described based on the preferred embodiment with reference to the drawings. In the description of the drawings below, the same or similar parts are designated by the same or similar reference numerals. The drawings are basically schematic, and the ratio of each dimension may differ from the actual one.

1 to 3 show a sanitary napkin 1 which is an embodiment of the absorbent article of the present invention. The napkin 1 has a skin facing surface Sa that can come into contact with the wearer's skin and a non-skin facing surface Sb that is located on the side opposite to the skin facing surface Sa, and has an absorber 5 that can absorb body fluids. A back sheet 4 that forms the non-skin facing surface Sb is provided.
Both the skin-facing surface Sa and the non-skin-facing surface Sb of the napkin 1 are the outermost surfaces of the napkin 1. When the napkin 1 is worn, the skin-facing surface Sa can come into contact with the wearer's skin, and the non-skin-facing surface Sb is located on the side opposite to the skin-facing surface Sa.
As the absorber 5, the napkin 1 may include the sheet type absorber 5A shown in FIG. 2 or the fiber stack type absorber 5B shown in FIG. Unless otherwise specified, the description of the absorber 5 described later applies to both the absorbers 5A and 5B.

More specifically, the napkin 1 has a vertical direction X corresponding to the front-back direction of the wearer, that is, a direction extending from the ventral side to the dorsal side via the crotch portion, and a horizontal direction Y orthogonal to the vertical direction X. , The absorber 5, the back sheet 4 arranged on the non-skin facing surface side of the absorber 5, and the skin facing surface Sa of the napkin 1 arranged closer to the wearer's skin than the absorber 5. The top sheet 3 to be formed is provided. The top sheet 3 is a member that can come into contact with the wearer's skin when the napkin 1 is worn, and is typically liquid permeable. On the other hand, the backsheet 4 is typically liquid impervious or impervious to liquid or water repellent (in short, leakproof).

In the present specification, the "skin facing surface" is a surface of the absorbent article or a component thereof (for example, the absorber 5) that is directed toward the wearer's skin when the absorbent article is worn, that is, relative to the wearer's skin. The "non-skin facing surface" is the side opposite to the skin side when the absorbent article is worn, that is, the side relatively far from the wearer's skin in the absorbent article or its constituent members. It is the surface to be. The term "when worn" as used herein means a state in which the normal proper wearing position, that is, the correct wearing position of the absorbent article is maintained.

The napkin 1 is arranged in the crotch portion of the wearer, and is worn in a vertical central region M including an excretory portion facing portion (not shown) facing the excretory portion such as the wearer's vaginal opening, and a vertical central region M. It is divided into three areas: a front area F arranged on the front side (ventral side) of the person and a rear area R arranged on the rear side (dorsal side) of the wearer from the vertical central area M.

The napkin 1 has a pair of wing portions 2W and 2W on both outer sides in the lateral direction Y with the absorber 5 interposed therebetween. The wing portion 2W includes a back seat 4. More specifically, as shown in FIG. 1, a pair of side flap portions 2S and 2S extend from both side edges of the absorber 5 along the vertical direction X to the outside in the horizontal direction Y, and further, a vertical central region M. The side flap portion 2S extends outward in the lateral direction Y from the peripheral portion, and a pair of wing portions 2W and 2W are provided on both the left and right sides of the absorbent main body portion 2 along the vertical direction X in the vertical central region M. It has been extended. The wing portion 2W is provided with a wing portion adhesive portion (not shown) as a fixing means for fixing the wing portion 2W to clothes such as shorts on the non-skin facing surface. Since the wing portion 2W is used by being folded back toward the non-skin facing surface (outer surface) side of the crotch portion of clothing such as shorts, the non-skin facing surface of the wing portion 2W, which is the forming surface of the wing portion adhesive portion, is used. When used, it is directed toward the wearer's skin and becomes a skin-facing surface (see FIG. 6). Further, a napkin 1 is placed on the non-skin facing surface of the absorbent main body 2, that is, the non-skin facing surface of the back sheet 4, which is a region extending in the vertical direction X between the side flap portions 2S and 2S, such as shorts. The main body adhesive portion 10 is provided as a fixing means for fixing to the clothes. Before use, the wing adhesive portion and the main body adhesive portion 10 are each covered with a release sheet (not shown) made of a film, a non-woven fabric, paper or the like.

In the present invention, the vertical central region of an absorbent article having no wing portion (for example, a typical disposable diaper) corresponds to a region located in the middle when the absorbent article is divided into three equal parts in the vertical direction. ..

In the napkin 1, a second sheet 6 is arranged between the top sheet 3 and the absorber 5. The second sheet 6 is a sheet separate from the top sheet 3 and the absorber 5, and is also called a sublayer sheet in the technical field. The top sheet 3 and / or the absorber 5 is partially formed by an adhesive or the like. It is joined to.

As shown in FIGS. 2 and 3, the top sheet 3 and the second sheet 6 cover the entire surface of the absorber 5 facing the skin, and further, from both side edges of the absorber 5 along the vertical direction X to the outside of the horizontal direction Y. It extends to the direction. On the other hand, the back sheet 4 covers the entire non-skin facing surface of the absorber 5, and further extends outward in the lateral direction Y from both side edges of the absorber 5 along the vertical direction X. The extension length of the back sheet 4 from the side edge of the absorber 5 is longer than the extension length of the back sheet 4 from the side edge of the absorber 5 of each of the top sheet 3 and the second sheet 6. The back sheet 4 and the side sheet 7 are joined to each other by known joining means such as an adhesive, a heat seal, and an ultrasonic seal at extending portions from both side edges of the absorber 5 along the vertical direction X. The side flap portion 2S is a portion of the napkin 1 composed of a member extending outward in the lateral direction Y from the absorber 5 (absorbent main body portion 2), and in the illustrated form, the top sheet 3 and the second sheet 6 , Side sheet 7 and back sheet 4 are included.

In the napkin 1, the absorbent main body 2 overlaps the skin-facing surface (the skin-facing surface of the top sheet 3) on both sides along the vertical direction X, and the absorbent body 5 overlaps the left and right sides along the vertical direction X in a plan view. A pair of side seats 7 and 7 are arranged over substantially the entire length of the absorbent main body 2 in the vertical direction X. Each of the pair of side sheets 7 and 7 is joined to another member such as the top sheet 3 by a known joining means such as an adhesive at a linear joining portion (not shown) extending in the vertical direction X. The side sheet 7 and the top sheet 3 form the skin-facing surface Sa of the napkin 1.

As the above-mentioned members constituting the napkin 1, those usually used in this kind of absorbent article can be used without particular limitation on the premise that the members are in accordance with the description described later. .. As the top sheet 3, for example, a known non-woven fabric having a single-layer or multi-layer structure having liquid permeability can be used. The back sheet 4 has a leak-proof sheet, that is, a liquid impermeable (property that does not allow liquid to pass through) or a liquid impermeability (property that does not allow liquid to pass through, although it cannot be said to be liquid impervious). A sheet having a sheet can be used, and examples thereof include a moisture-permeable resin film. As the second sheet 6, a sheet that can be used as the top sheet 3 can be used. As the side sheet 7, a water-repellent or water-repellent treated non-woven fabric can be used.

As shown in FIG. 1A, the napkin 1 is composed of an absorber 5 and members (top sheet 3 and second sheet 6 in the illustrated form) arranged on the skin-facing surface side of the absorber 5. It has a skin-side recessed portion 8 that is integrally recessed on the non-skin facing surface side (back sheet 4 side) of 5. The skin-side recessed portion 8 does not penetrate the absorber 5 in the thickness direction, has an opening on the skin-facing surface of the top sheet 3, and has a bottom portion inside the absorber 5 on the side opposite to the opening. The skin-side concave portion 8 has a function of inhibiting the movement of body fluid such as menstrual blood in the surface direction. In the illustrated form, the skin-side recessed portion 8 has a linear shape extending in one direction in a plan view, and the skin-side recessed portion 8 as a whole has an annular shape closed in a plan view. The skin-side concave portion 8 is formed at least in the vertical central region M.

In the napkin 1, as shown in FIG. 1 (b), the absorber 5 has a non-skin side concave portion 9 on the non-skin facing surface of the absorber 5. As shown in FIG. 2, the back sheet 4 is not bonded to the absorber 5 at the non-skin side concave portion 9, and is bonded to the absorber 5 via the adhesive 11 at a portion other than the non-skin side concave portion 9. Has been done. The non-skin side recessed portion 9 does not penetrate the absorber 5 in the thickness direction, has an opening on the non-skin facing surface of the absorber 5, and has a bottom portion inside the absorber 5 opposite to the opening. Have. The non-skin side concave portion 9 is arranged at a position where it overlaps the skin side concave portion 8 in a plan view. In the illustrated form, the non-skin side concave portion 9 has the same plan view shape as the skin side concave portion 8.

The recessed portions 8 and 9 are all formed by a known pressing process, and can be referred to as a "pressing portion" from the method of forming the recessed portions 8 and 9. The recessed portions 8 and 9, which are the compressed portions, have a higher density than the surrounding non-squeezed portions. In the absorber 5, a high-density portion that overlaps the recessed portion 98 in a plan view and a low-density portion in which the recessed portions 8 and 9 are not formed coexist, whereby the skin of the absorber 5 is formed. There is a density difference in the surface direction between the facing surface and the non-skin facing surface side.

The absorber 5 will be described. The absorber 5 is the main body of the absorbent body 2, and the contour of the absorber 5 in the plan view forms the contour of the absorbent body 2 in the plan view. The absorber 5 extends in the vertical direction X from the front region F to the rear region R via the vertical central region M.

FIG. 2 shows an absorber 5A that can be used as the absorber 5. The absorber 5A is an absorber mainly composed of an absorbent sheet, which is a sheet-shaped absorber, and is thinner and more flexible than the fiber-stacked type absorber 5B described later. The absorbent sheet is typically composed of a fiber sheet mainly composed of a fiber material such as wood pulp and a water-absorbent material such as a water-absorbing polymer fixed to the inside or the surface of the fiber sheet. ing. The absorbent sheet may have a structure in which particles of a water-absorbing polymer are interposed between two sheets facing each other. As the absorbent sheet, for example, those described in Japanese Patent No. 2963647 and Japanese Patent No. 2955223 can be used.

The absorber 5A covers the central absorbent sheet 50 arranged in the central portion of the napkin 1 in the lateral direction Y and the entire sheet 50 to form an outer surface (skin facing surface, non-skin facing surface) of the absorbent body 5A. Includes the main body absorbent sheet 51. Both sheets 50 and 51 are the absorbent sheets.
In the illustrated form, both the sheets 50 and 51 have a laminated structure in which one sheet is folded. The laminated structure of the central absorbent sheet 50 has shorter lengths in both the vertical direction X and the horizontal direction Y than the laminated structure of the main body absorbent sheet 51, and the inside of the laminated structure of the main body absorbent sheet 51 is concrete. Is arranged between two folded sheets 51, 51. The contour of the laminated structure of the main body absorbent sheet 51 in a plan view forms the contour of the absorber 5A in a plan view. The central absorbent sheet 50 is arranged at the portion facing the excretion portion in the vertical central region M. The arrangement portion of the central absorbent sheet 50 (the overlapping portion of both sheets 50 and 51) is a thick portion having a thickness larger than that of the peripheral portion, and is raised on the skin side of the wearer of the napkin 1.

FIG. 3 shows an absorber 5B that can be used as the absorber 5. The absorber 5B is made by stacking fiber materials such as wood pulp, and covers the absorbent core 52 which is the main component of the absorbent core 5B and the outer surface (skin facing surface, non-skin facing surface) of the absorbent core 52. Includes a liquid permeable core wrap sheet 53. The absorbent core 52 and the core wrap sheet 53 may be bonded by an adhesive such as a hot melt adhesive. The absorbent core 52 may contain a water-absorbent polymer in addition to the fiber material, and examples thereof include a structure in which particles of the water-absorbent polymer are supported inside an aggregate of the fiber materials. As the core wrap sheet 53, a sheet having liquid permeability can be used, and typically, it is a non-woven fabric or paper. The core wrap sheet 53 may be composed of only one sheet, or may be composed of a plurality of sheets.

When not in use, the napkin 1 is folded together with the packaging material 15 to form an individual package 20 as shown in FIG. FIG. 5 shows a state in which the individual body 20 is partially unfolded, and FIG. 6 shows a state in which the individual body 20 is completely unfolded.
A packaging material 15 for packaging the napkin 1 is arranged on the non-skin facing surface Sb of the napkin 1, more specifically, on the non-skin facing surface of the back sheet 4 forming the non-skin facing surface Sb. The packaging material 15 is detachably fixed to the back sheet 4 via the main body adhesive portion 10 (see FIG. 1B). As shown in FIG. 6, the individual packaging body 20 has an absorbent main body portion 2 in a state where a pair of wing portions 2W and 2W are bent toward the top sheet 3, together with a packaging material 15, and two folding curves L1. It is formed by folding the top sheet 3 inward in the vertical direction X at L2. At the side edge portions 20S and 20S along the vertical direction X of the individual packaging body 20, the two folded packaging materials 15 and 15 constituting the side edge portion 20S are joined by heat sealing or the like.

The packaging material 15 has a transparent portion. The "transparent portion" here refers to a portion having a total light transmittance of preferably 70% or more, more preferably 90% or more. The transparent portion of the packaging material 15 may be colorless or colored. The packaging material 15 may be entirely a transparent portion, or only a part thereof may be a transparent portion. The packaging material 15 forms the outer surface of the individual packaging body 20, and when the individual packaging material 20 is visually viewed from the outside, the color of the napkin 1 contained in the individual packaging material 20 is seen through the transparent portion of the packaging material 15. Can be visually recognized.

In the present invention, "total light transmittance" refers to a value measured in accordance with JIS K7361-1: 1997. It can be evaluated that the higher the total light transmittance, the higher the translucency. The total light transmittance can be measured using a commercially available haze meter (for example, "HAZEMETERNDH 5000" manufactured by Nippon Denshoku Industries Co., Ltd.).

When the napkin 1 is folded together with the packaging material 15 to form the individual packaging material 15, the packaging material 15 is located on the outer surface of the individual packaging material 20 and the end portion of the packaging material 15 is positioned at a predetermined position of the packaging material 15. A fastening member 16 is arranged so as to be fastened to the surface. As shown in FIG. 6, the fastening member 16 is fixed to one end of the packaging material 15 in the vertical direction X. The fastening member 16 has a rectangular shape in a plan view, and its longitudinal direction coincides with the vertical direction X. One end 16a of the fastening member 16 in the longitudinal direction is a fixed end fixed to the packaging material 15, and the other end 16b is a free end that is not fixed to other members. An adhesive (not shown) is applied to the surface of the free end portion 16b of the fastening member 16 facing the packaging material 15 in the individual packaging body 20 (the surface opposite to the surface exposed in the individual packaging body 20). The free end portion 16b is provided so as to be detachably attached to the packaging material 15 via the adhesive. The fastening member 16 functions as a sealing portion of the individual packaging body 20 in an unused state, and also functions as an opening knob portion that is picked up by fingers when opening the individual packaging body 20.

The napkin 1 includes a first colored member and a second colored member that is arranged closer to the wearer's skin than the first colored member and has a color different from the color of the first colored member. Moreover, it has a color overlapping region 17 in which at least a part of both colored members overlap in the thickness direction.
Here, the "color of the first colored member" and the "color of the second colored member" refer to the colors that are visually recognized when the colored member is directly visually observed without the intervention of other members, and are specific. Refers to, for example, a color that is visually recognized when the colored member is taken out from an absorbent article and visually observed.
The color overlapping region 17 is typically a region in which the first colored member and the second colored member are overlapped in the thickness direction of the first colored member and the second colored member without interposing other chromatic members.
The color of the napkin 1 that is visible from the non-skin facing surface Sb of the napkin 1 in the color overlapping region 17 is different from the color that is visible from the skin facing surface Sa of the napkin 1 in the color overlapping region, and the first It is characterized by being different from the color of the colored member.

The first colored member is typically visible at least from the non-skin facing surface Sb of the napkin 1. In the illustrated form, the back sheet 4 forming the non-skin facing surface Sb of the napkin 1 is the first colored member, and the absorber 5 is the second colored member. Further, in the illustrated form, the back sheet 4 has a larger area than the absorber 5, covers the entire non-skin facing surface of the absorber 5, and further extends outward from the peripheral edge of the absorber 5. Therefore, in the illustrated form, the color overlap region 17 coincides with the arrangement region of the absorber 5 (second colored member), and the contour of the color overlap region 17 in the plan view is the plan view of the absorber 5 (second colored member). Consistent with the contour in.
Then, in the illustrated embodiment, the absorber 5 (second colored member) overlaps with the back sheet 4 (first colored member) in the thickness direction, that is, the color overlapping region 17, depending on the color, and the non-skin facing surface of the napkin 1. The color of the color overlapping region 17 that is visible from Sb through the back sheet 4 and is visible from the non-skin facing surface Sb (the color of the arrangement region of the absorber 5 that is visible through the back sheet 4) is facing the skin. It is different from the color of the color overlapping region 17 visible from the surface Sa (the color of the arrangement region of the absorber 5 visible from the skin facing surface Sa of the napkin 1). The "arrangement region of the absorber 5" referred to here refers to a region of the napkin 1 that overlaps with the absorber 5 (absorbent body 2) in a plan view. Therefore, in the illustrated form, the overall shape of the absorber 5 (absorbent body 2) can be visually recognized from both the skin facing surface Sa and the non-skin facing surface Sb of the napkin 1, but the visible color (color of the color overlapping region 17) can be seen. ) Is different between the skin facing surface Sa and the non-skin facing surface Sb.

As described above, the appearance of the color of the color overlapping region 17 (the region where the absorber 5 is arranged) differs between the skin facing surface Sa and the non-skin facing surface Sb of the napkin 1 is typically that the absorber 5 The color of the member arranged on the skin-facing surface side of the absorber 5 (when a plurality of the members are laminated, the color of the laminated body) and the color of the member arranged on the non-skin-facing surface side of the absorber 5 are Occurs when different. In this regard, in the illustrated embodiment, the members arranged on the skin-facing surface side of the absorber 5 are the top sheet 3 and the second sheet 6 having a color different from that of the back sheet 4, so that the members are different from the skin-facing surface Sa of the napkin 1. The appearance of the color of the absorber 5 differs from that of the non-skin facing surface Sb. The colors of the top sheet 3 and the second sheet 6 are typically white or an achromatic color close to white.

The appearance of the color in the color overlapping region 17 (arrangement region of the second colored member) differs between the skin facing surface Sa and the non-skin facing surface Sb of the napkin 1, so that the impression received from the appearance of the napkin 1 is the skin facing surface Sa. And the non-skin facing surface Sb are different from each other, which gives the user a gorgeous impression or a devised impression on the napkin 1, and can relieve the depressed mood of the user before wearing. Further, depending on the colors of the first colored member (back sheet 4) and the second colored member, the skin-facing surface Sa and the non-skin-facing surface Sb of the napkin 1 may be formed by the color combination (color overlap) of both members. It is possible to make not only the psychological effect given to the viewer but also the visual effect different, and the usefulness of the napkin 1 can be further improved.

To further explain the effect of the napkin 1, in the napkin 1, the first colored member and the second colored member are visibly arranged, that is, the napkin 1 can be disassembled without being destroyed. Since at least a part of both colored members can be visually recognized when viewed from the outside, it is possible to give the user of the napkin 1 the psychological effect brought about by these colored members even before the napkin 1 is worn. .. The user of the napkin 1 wears the napkin 1 in a state where the expectation for a good feeling of use is raised by relaxing by such a psychological effect and relieving the depressed mood during menstruation. You can have positive feelings, such as having a sense of trust and security for the specific effects that are actually played, and as a result, you can easily feel the specific effects. In general, what is imaged in the brain can affect the human senses, and the napkin 1 utilizes this to use the first colored member and the second colored member before wearing the napkin 1. By expecting a good feeling of use for the napkin 1 due to the psychological effect of the member, it is easier to perceive the specific action and effect during wearing. Further, as described above, the packaging material 15 forming the outer surface of the individual packaging body 20 has a transparent portion, and when the individual packaging body 20 is visually observed, the color of the napkin 1 can be visually recognized through the transparent portion. The first colored member (back sheet 4) and the second colored member (absorbent body 5) can be visually recognized through the transparent portion. Therefore, the colors of the two colored members can be visually recognized not only when the napkin 1 is attached but also when the individual body 20 is carried, and the psychological effect brought about by the colors of the two colored members is more reliably achieved. Can be played.

The first colored member (back sheet 4) and the second colored member (absorbent body 5) are white or near-white achromatic members colored in a desired color by a known dyeing method such as printing. It may be composed of a dyed fiber of a desired color. The original fiber is a fiber colored in the fiber production stage, and is produced, for example, through a coloring step in which a pigment such as a pigment is added to a production intermediate in the stage from the production of the resin to the fiberization.

The color of the constituent members of this type of absorbent article is usually white or an achromatic color close to white, and the absorbent article of the present invention also has other than the first colored member and the second colored member unless otherwise specified. The color of the other components is white or an achromatic color close to white.
In the present specification, the chromaticity L ^* is preferably 90 or more, more preferably 92 or more, and the chromaticity a ^* and the chromaticity b ^* are the purple members described later. ^{The chromaticity a *} is smaller than that of (back sheet 4), or the chromaticity b ^* is larger than that of the purple member, or the chromaticity a ^* is smaller and the chromaticity b ^* is smaller than that of the purple member. Larger is preferable.
^{The chromaticity a *} of a white or near-white achromatic member is preferably -1 or more and 1 or less, preferably -0.5 or more and 0.5 or less, and more preferably the lower limit value is 0 or less, and the chromaticity b. ^* Is preferably -1 or more and 4 or less, and preferably 0 or more and 3.5 or less.

It is preferable that the color visually recognized from the non-skin facing surface Sb of the napkin 1 in the color overlapping region 17 is the same color as the color visually recognized from the skin facing surface Sa of the napkin 1 in the color overlapping region 17. Differences between colors of the same type can give the viewer a small sense of discomfort, but do not give a strong sense of discomfort, but in general, such a small sense of discomfort is relatively strong. Remain in. Therefore, the color of the color overlapping region 17 on the skin facing surface Sa side of the napkin 1 and the color of the color overlapping region 17 on the non-skin facing surface Sb side are different within the same system range, so that the skin facing surface Sa and the non-skin facing surface Sa and the non-skin facing surface Sa are different from each other. A small sense of discomfort is generated by comparing with the surface Sb, which makes the distinction between the double-sided Sa and Sb clearer, and the mounting position of the napkin 1 can be correctly recognized. In the unused state of the napkin 1, the non-skin facing surface Sb is an individual body 20 located outside the skin facing surface Sa. Therefore, the user of the napkin 1 usually uses the non-skin facing surface Sb. The napkin 1 will be visually inspected in the order of the skin facing surface Sa, and there is an opportunity to compare the double-sided Sa and Sb in a series of mounting operations.

The above-mentioned "color of the same system" refers to a color belonging to the hue range to which the color belongs or two hue ranges located on both sides of the hue range in the Munsell hue circle divided into 20 hues. For example, since purple belongs to the hue ranges PB, P, RP in the Munsell color wheel, the "colors of the same system as purple" include the hue ranges PB, P, RP and the two hue ranges B located on both sides thereof. A color belonging to any of P is included. Further, since blue belongs to the hue range 10B in the Munsell hue circle, the "color of the same system as blue" includes a color belonging to the hue range 10B and two hue ranges 5B and 5PB located on both sides of the hue range 10B. included.

The color visually recognized from the skin facing surface Sa of the napkin 1 in the color overlapping region 17 may have a lower ^{saturation C *} than the color visible from the non-skin facing surface Sb of the napkin 1 in the color overlapping region 17. preferable. That is, the color of the color overlap region 17 (arrangement region of the absorber 5) visually visible on the skin facing surface Sa is the color overlap region 17 (arrangement region of the absorber 5) visually visible on the non-skin facing surface Sb. ), It is preferable that the color is a light color that is inferior in vividness. In particular, as described above, when the color visible from the skin facing surface Sa of the napkin 1 in the color overlapping region 17 and the color visible from the non-skin facing surface Sb are the same color as each other, both of them are described above. It is more preferable that there is a magnitude relationship of saturation C ^*. By establishing the magnitude relationship of the saturation C ^* , it is possible to give the user a sense of security even more reliably before using the napkin 1. Saturation C ^* is calculated by the following formula.
Saturation C ^* = {(a ^* ) ² + (b ^* ) ² } ^1/2

The chromaticity a ^* and the chromaticity b ^* are indicators of the hue and saturation of the color (for example, purple), respectively.
In the present invention, the ^{saturation a *} , the ^{saturation b *, the} saturation C ^* , and the brightness L ^{* described later are the L *} a ^* b ^* tables standardized by the International Lighting Commission (CIE) in 1976, respectively. It is based on the color system (CIE1976 (L ^* a ^* b ^* ) color system).
For the chromaticity a ^* , chromaticity b ^* , and brightness L ^* , JIS Z 8781 is used with a commercially available color difference meter (for example, a handy type spectral color difference meter NF333 (trade name) manufactured by Nippon Denshoku Industries Co., Ltd.). It can be measured according to -4.

For example, when the second colored member (absorbent 5) is a blue member that can be visually recognized as blue by itself as described later, the color that is visible from the non-skin facing surface Sb of the napkin 1 in the color overlap region 17, that is, The color of the area where the absorber 5 (blue member) is arranged that is visible through the first colored member (back sheet 4) and the color that is visible from the skin-facing surface Sa of the napkin 1 in the color overlapping area 17, that is, the top sheet 3 ^{And the difference in saturation C * from} the color of the arrangement area of the absorber 5 (blue member) visible through the second sheet 6 is preferably 2 on the premise that the former> the latter when the latter is subtracted from the former. 12 or more, more preferably 3 or more and 10 or less.

In the present invention, the colors of the first colored member and the second colored member are not particularly limited, and any color is selected on the premise that they are different colors from each other and that they are white or not an achromatic color close to white. obtain. The first colored member and the second colored member are typically said to have a specific one-color chromatic color as a whole, but on the premise that the specific one-color chromatic color is visible from the outside. Only a part of the member has a specific chromatic color, and the other part may be white or an achromatic color close to white.

In the napkin 1, the back sheet 4 (first colored member) is visible when the non-skin facing surface Sb of the napkin 1 is visually observed, and at least the skin is visible when the skin facing surface Sa of the napkin 1 is visually observed. It is visible in the non-arranged region of the absorber 5 on the facing surface Sa (the region that does not overlap with the absorber 5 in a plan view). On the skin-facing surface side of the back sheet 4, other members such as the absorber 5 (second colored member) are laminated so as to cover the back sheet 4, so that depending on the arrangement state of the other members. In some cases, the color (for example, purple) of the back sheet 4 may not be visible when the skin-facing surface Sa of the napkin 1 is visually observed. In particular, since the absorber 5 is relatively thick and has poor light transmission, there is a possibility that the color of the back sheet 4 cannot be visually recognized by visually observing the skin-facing surface Sa of the napkin 1 in the area where the absorber 5 is arranged. However, in the non-arranged region of the absorber 5, one or several sheets (for example, top sheet 3, side sheet 7, second sheet 6) having a relatively small thickness and high light transmission such as a non-woven fabric are usually stacked. Therefore, the color of the back sheet 4 can be sufficiently visually recognized by visually observing the skin-facing surface Sa of the napkin 1.

The non-arranged region of the absorber 5 (second colored member) in the napkin 1, that is, the portion where the color of the back sheet 4 (first colored member) can be visually recognized when the skin facing surface Sa of the napkin 1 is visually recognized is the wing portion 2W. The side flap portion 2S including the above can be exemplified. In particular, as shown in FIGS. 2 and 3, the wing portion 2W has only one side sheet 7 made of a non-woven fabric or the like arranged on the skin-facing surface of the back sheet 4, so that the skin-facing surface Sa of the napkin 1 The color of the back sheet 4 (for example, purple) can be sufficiently visually recognized.

In the napkin 1, as shown in FIG. 1, where the absorber non-arrangement region 5N extends in the vertical direction X between the wing portion 2W and the absorber 5, the skin facing surface Sa of the napkin 1 is visually observed. When this is done, the color of the first colored member (back sheet 4) can be visually recognized in the wing portion 2W and the absorber non-arranged region 5N, and the absorber non-arranged region 5N has a wing portion 2W as compared with the wing portion 2W. ^{The chromaticity a *} of the visually recognized color is small, and the chromaticity b ^* is large. When the napkin 1 is attached to clothing such as shorts, the operation of bending the wing portion 2W toward the non-skin facing surface Sb side in the absorber non-arrangement region 5N is usually performed while visually observing the skin facing surface Sa of the napkin 1. However, with the above configuration, the position of the absorber non-arrangement region 5N to be bent becomes clear, so that the bending operation of the wing portion 2W becomes easy, and the operability of the napkin 1 is improved. obtain.

As described above, when observing the skin-facing surface Sa of the napkin 1, "chromaticity a of the absorber non-arranged region 5N a ^* <chromaticity a of the wing portion 2W ^* " and "color of the absorber non-arranged region 5N". As a method of establishing the magnitude relationship of degree b ^{* > chromaticity b *} of the wing portion 2W, for example, 1) on the skin-facing surface side of the first colored member (back sheet 4) in the absorber non-arrangement region 5N. Examples of a method of increasing the number of other arranged members (number of layers) as compared with that of the wing portion 2W, 2) a method of providing a compaction portion in the wing portion 2W, and the like can be exemplified.

As a preferred embodiment of the absorbent article of the present invention, the first colored member (back sheet 4) is a purple member that can be visually recognized as purple by itself, and the second colored member (absorbent body 5) is visually recognized as blue by itself. An example of a possible blue member can be illustrated.
The term "visible as a single substance in purple" as used herein means that the color that is visually recognized when the member (first colored member) is directly viewed without going through another member is purple. Further, "visible by itself in blue" means that the color visually recognized when the member (second colored member) is directly visually observed without passing through another member is blue.

"Purple" in the present invention is a color in the CIE1976 (L ^* a ^* b ^* ) color system in which the chromaticity a ^* is 0 or more and the chromaticity b ^* is 0 or less.
Purple is said to have the effect of healing sadness and anger in the mind, and is used in relaxing spaces as a healing color that balances the mind and body. Purple is also the color of choice for artists, therapists, healers, etc., as it symbolizes spirituality and has the effect of enhancing inspiration and expanding sensibilities. Also, cold colors (for example, blue) make the viewer feel cold, and warm colors (for example, red) make the viewer feel warm, while purple is a neutral color, so the viewer feels cold or warm. It is difficult to recall such an extreme image. The purple first colored member (back sheet 4) that brings about such a psychological effect is visibly arranged on the napkin 1 by the user (wearer), thereby giving the user a purple psychological effect. Before using the napkin 1 (for example, during the wearing operation of the napkin 1) and during use, the depressed mood of the user can be relieved.
Further, the back sheet 4 (first colored member) is arranged close to the packaging material 15 forming the outer surface of the individual body 20 in the state where the napkin 1 is the individual body 20 shown in FIG. 4, that is, in the unused state. It is a member that is relatively easily visible from the outside. When such a back sheet 4 is purple, a series of mounting operations before using the napkin 1, that is, "the individual packaging body 20 is opened, and after the partially unfolded state shown in FIG. 5, the unfolded state shown in FIG. 6 is performed. Then, in the "series of wearing operations for mounting the napkin 1 on the crotch portion", the user can surely see and be aware of purple, so that the psychological effect brought about by purple is more reliably achieved.
Further, when disposing of the used napkin 1, usually, when the used napkin 1 is folded with its non-skin facing surface Sb on the outside and then discarded, the back sheet forming the non-skin facing surface Sb is formed. Since the purple color of 4 (the first colored member) is similar in color to the menstrual blood absorbed and held by the absorber 5, the effect of making the menstrual blood less noticeable when the napkin 1 is discarded is exhibited.

"Blue" in the present invention is a color in the CIE1976 (L ^* a ^* b ^* ) color system in which the chromaticity b ^* is in the range of 0 or less.
Blue is a color that can remind the viewer of a refreshing refreshing feeling. The second colored member (absorbent body 5) is a blue member that can be visually recognized as blue by itself, and the blue color can be visually recognized when the skin facing surface Sa and the non-skin facing surface Sb are visually observed before wearing the napkin 1. By doing so, it is possible to obtain a refreshing feeling while wearing the napkin 1 without reminding the user who is going to wear the napkin 1 of the feeling of stuffiness and dullness that tend to be held by this kind of absorbent article. It can be expected, and this can be expected to further improve the usability of the napkin 1.
Further, for example, when the napkin 1 contains a functional material having an action effect matching the psychological effect brought about by blue, such as a cooling sensitizer described later, if the second colored member is a blue member, the cooling sensitizer Combined with the effect of the above and the psychological effect brought about by the blue color, it can be expected that the usability of the napkin 1 will be further improved.

Further, by combining the first colored member (back sheet 4) which is a purple member and the second colored member (absorbent body 5) which is a blue member, a synergistic effect can be expected by both members.
For example, the arrangement region of the absorber 5 that is visible from the non-skin facing surface Sb of the napkin 1 in the color overlapping region 17 (that is, that is visible through the purple back sheet 4 when the non-skin facing surface Sb is visually observed. Blue) is blue that is visible from the skin facing surface Sa of the napkin 1 in the color overlapping region 17 (that is, through the top sheet 3 and the second sheet 6 that are white or achromatic color close to white when the skin facing surface Sa is visually observed. Compared with the blue color of the arrangement area of the absorber 5 visually recognized in the above, the color tone becomes darker due to the overlap with purple color. The deep blue color of the absorber 5 generated by the overlap with the purple color should be visually recognized through the transparent portion of the packaging material 15 not only when the napkin 1 is attached but also when the napkin 1 is the individual body 20. Therefore, it is possible to sufficiently give the user the psychological effect of blue color before using the napkin 1, and it is possible to improve the concealing property of absorbed menstrual blood and the like.
Further, when the skin facing surface Sa of the napkin 1 is visually observed, the blue color of the absorber 5 arrangement region (from the skin facing surface Sa of the color overlapping region 17) that is visually recognized through a typical white member such as the top sheet 3 The visible blue color) has a higher hue than the blue color in the arrangement area of the absorber 5 (blue color visible from the non-skin facing surface Sb in the color overlapping area 17) that is visible through the purple backsheet 4. Where it becomes lighter, the light blue color of the absorber 5 can give a viewer a gentle feeling and a sense of security.

The configuration of the absorber 5 which is a blue member is not particularly limited, and the point is that the color that can be visually recognized when the absorber 5 is directly viewed without passing through other members may be blue. The absorber 5, which is a blue member, typically has at least an outer surface (skin facing surface and non-skin facing surface) blue.
For example, when the absorber 5 is the sheet type absorber 5A shown in FIG. 2, it is sufficient that at least the main body absorbent sheet 51 forming the outer surface of the absorber 5A is blue, and the entire body is covered by the sheet 51. The absorbent sheet 50 may be blue or non-blue. Further, when the absorber 5 is the fiber stack type absorber 5B shown in FIG. 3, it is sufficient that at least the core wrap sheet 53 forming the outer surface of the absorber 5B is blue, and the entire body is covered by the sheet 53. The sex core 52 may be blue or non-blue.

When the first colored member (back sheet 4) is a purple member that can be visually recognized as purple by itself, and the second colored member (absorbent 5) is a blue member that can be visually recognized as blue by itself, the color of each part of the napkin 1. ^{Is preferably a color in which the chromaticity a *} and the chromaticity b ^* are in the following ranges, respectively, from the viewpoint of ensuring that the above-mentioned psychological effect of blue or purple is more reliably produced.
The color visually recognized from the skin-facing surface Sa of the napkin 1 in the color overlap region 17 has a chromaticity a ^* of preferably -10 or more and 0 or less, more preferably -9 or more and -2 or less, and a chromaticity b ^*. However, it is preferably -10 or more and 0 or less, and more preferably -9 or more and -1 or less.
The color visually recognized from the non-skin facing surface Sb of the napkin 1 in the color overlap region 17 has a chromaticity a ^* of preferably -8 or more and 4 or less, more preferably -6 or more and 2 or less, and a chromaticity b ^*. However, it is preferably -18 or more and -8 or less, and more preferably -16 or more and -9 or less.
From the skin facing surface Sa of the napkin 1 in a region other than the color overlapping region 17, specifically, for example, a region in which the first colored member is arranged without the second colored member (for example, the wing portion 2W). The chromaticity a ^* is preferably 0 or more and 2 or less, more preferably more than 0 and 1.5 or less, and the chromaticity b ^* is preferably -10 or more and 0 or less, more preferably. -9 or more and -1 or less.
When observing the skin-facing surface Sa of the napkin 1, the color of the color overlap region 17 and other regions other than the color overlap region 17, specifically, for example, the first color without the second colored member being arranged. Regarding the color difference from the color of the region where the members are arranged (for example, the wing portion 2W), the difference in chromaticity a ^* is preferably 3 or more and 20 or less, more preferably 5 or more and 15 or less when the latter is subtracted from the former. And the difference in chromaticity b ^* is preferably −0.5 or more and −10 or less, and more preferably -1 or more and −5 or less.

From the viewpoint of ensuring that the psychological effects brought about by the colors of the first colored member (back sheet 4 in the illustrated form) and the second colored member (absorbent 5 in the illustrated form) are more reliably produced, in particular, the napkin 1 From the viewpoint of ensuring that the appearance of the color (for example, blue) of the second colored member differs between the skin-facing surface Sa and the non-skin-facing surface Sb, the total light transmittance of the back sheet 4 is further ensured. Is preferably 20% or more, more preferably 25% or more, and preferably 80% or less, more preferably 60% or less from the viewpoint of the hiding effect of excrement.

From the same viewpoint, it is preferable to set the total light transmittance of the other constituent members of the napkin 1 as follows.
The total light transmittance of the top sheet 3 is preferably 20% or more, more preferably 25% or more, and from the viewpoint of the effect of concealing excrement, it is preferably 80% or less, more preferably 60% or less. The total light transmittance of the second sheet 6 may be in the same range as that of the top sheet 3.
The total light transmittance of the absorber 5 is preferably 20% or less, more preferably 5% or more and 15% or less.
The total light transmittance of the transparent portion of the packaging material 15 is preferably 30% or more, more preferably 40% or more, and a realistic upper limit is 90%.
The total light transmittance of each of the above members is a value when the member to be measured (for example, a back sheet) is taken out from the absorbent article and measured by the above method.

In the napkin 1, as shown in FIGS. 2 and 3 as described above, the absorber 5 has a non-skin side concave portion 9 on its non-skin facing surface (opposing surface to the back sheet 4), and the back sheet 4 ( The first colored member) is not joined to the absorber 5 at the non-skin side concave portion 9. With such a configuration, the light transmission property and the like are different between the arrangement region of the non-skin side concave portion 9 (the region overlapping the non-skin side concave portion 9 in a plan view) and the non-arrangement region. Therefore, the napkin 1 is shown in FIG. As shown in (b), when viewed from the non-skin facing surface Sb side, the appearance is different in both regions, and as a result, it is possible to give the viewer a deep three-dimensional effect, which enhances the aesthetics and the user. It makes it easier to give a gorgeous impression or a devised impression to the napkin 1. Further, when the functional material described later is contained in the napkin 1, it becomes easy for the user of the napkin 1 to recall the action and effect of the functional material.

As described above, as shown in FIGS. 4 to 6, the napkin 1 is folded together with the packaging material 15 when not in use or at the time of disposal to form an individual packaging body 20, and is fixed to the outer surface of the individual packaging body 20. Where the member 16 is arranged, the color of the fastening member 16 is the same as the color of the first colored member (back sheet 4) (for example, purple) or the color of the second colored member (absorbent 5) (for example, blue). It is preferably a strain color. The colors of the fastening member 16, the first colored member, and the second colored member, respectively, refer to the colors that are visually recognized when the member is directly visually observed without the intervention of other members. The "colors of the same system" are as described above. When the color of the fastening member 16 is the same color as the color of the first colored member or the second colored member, the psychological effect brought about by the color of the colored member can be more reliably achieved. Further, if the color of the fastening member 16 is the same color as the color of the first colored member or the second colored member, the user who sees the fastening member 16 includes the fastening member 16 in the individual body 20. It is possible to infer that the constituent members of the napkin 1 may also be colored in the same color as the fastening member 16, and the user can feel happy before using the napkin 1.

Further, the color of the fastening member 16 is the same as the color of the first colored member (back sheet 4) or the color of the second colored member (absorbent body 5) as described above, and further, both colors are used. It is preferable that the ^{saturation C *} is higher than the color of the member. As a result, the psychological effect of the color of the fastening member 16 described above is more reliably achieved.

When the packaging material 15 has a high light transmittance portion having a relatively high light transmittance (total light transmittance) and a relatively low light transmittance portion such as the transparent portion, the fastening member 16 is preferably arranged in the low light transmissive portion. The high light transmissive portion is a portion where the color of the napkin 1 packaged in the packaging material 15 can be visually visually recognized, and the fastening member 16 is arranged in the portion where the color of the napkin 1 can be visually recognized. This is because it hinders the visibility of the napkin 1.

Based on the above findings regarding the individual packaging body 20, the following can be mentioned as a preferred embodiment of the napkin 1.
The packaging material 15 for packaging the napkin 1 is arranged on the non-skin facing surface Sb of the napkin 1.
When the napkin 1 is folded together with the packaging material 15 into the packaging material 15 to form the individual packaging material 20, the end portion of the packaging material 15 is located on the outer surface of the individual packaging material 20 and is stopped at a predetermined position of the packaging material 15. A fastening member 16 to be worn is arranged,
The packaging material 15 has a light-transmitting portion having a relatively high light-transmitting portion and a low light-transmitting portion having a relatively low light-transmitting portion, and a fastening member 16 is arranged in the low light-transmitting portion.
The color of the fastening member 16 is the same color as the color of the first colored member (back sheet 4) or the second colored member (absorbent body 5).
When the individual packaging body 20 is visually observed, the colors of the first colored member (back sheet 4) or the second colored member (absorbent body 5) can be visually recognized through the high light transmissive portion.

The napkin 1 may contain one or more functional materials selected from the group consisting of a cooling sensation agent and an antibacterial agent. As described above, the napkin 1 includes a first colored member (back sheet 4) and a second colored member (absorbent body 5) so that a good usability can be obtained by the psychological effect brought about by the colors of both colored members. However, since the napkin 1 further contains a functional material, further improvement in usability can be expected. For example, when a cooling sensation agent is contained as a functional material, a good feeling of use can be obtained by allowing the user to perceive a refreshing sensation, a refreshing sensation, a dry sensation, etc. by the action of the cooling sensation agent. Further, when an antibacterial agent is contained as a functional material, a good usability is achieved by suppressing the generation of a foul odor caused by a body fluid by the action of the antibacterial agent. In particular, when the colors of both colored members can be associated with the effect of the functional material, for example, the second colored member (absorbent 5) is blue, whereas the cooling effect reminiscent of blue as the functional material. When a cooling sensation agent that can produce a cooling sensation is contained, the user visually recognizes the blue color of the napkin 1, and thereby wears the napkin 1 with the expectation for the cooling sensation effect. Combined with the effect actually produced by the functional material, the usability of the napkin 1 can be further improved.

In the absorbent article of the present invention, the content portion of the functional material is not particularly limited, and can be contained in one or two or more of the constituent members of the absorbent article. When a plurality of types of functional materials are used, all of the plurality of types of functional materials may be contained in one constituent member, or a part of the plurality of types may be contained in some of the constituent members, and the plurality of types of other materials may be contained. May be contained in other constituent members.
Specific examples of the functional material-containing portion in the napkin 1 described above include a top sheet 3, a second sheet 6, an absorber 5, and a back sheet 4.

As a preferable example of the content form of the functional material in the absorbent article, when the absorbent body 5 is the sheet type absorbent body 5A shown in FIG. 2, the main body absorbent sheet 51 which is a member forming the outer surface of the absorbent body 5A. A form in which a cold sensitizer is contained in the sheet 51 and an antibacterial agent is contained in the central absorbent sheet 50 which is a member contained in the sheet 51 (hereinafter, also referred to as “containing form A”) can be mentioned.
In the content form A, the fiber stack type absorber 5B shown in FIG. 3 can be used instead of the absorber 5A, and in that case, the core wrap sheet 53 which is a member forming the outer surface of the absorber 5B can be used. It is preferable that the cold sensitizer is contained and the antibacterial agent is contained in the absorbent core 52 which is a member contained in the sheet 53.
The content of the functional material in the absorbent article is not particularly limited, and may be appropriately adjusted according to the type of the functional material, the content portion of the functional material, and the like.

As the cooling sensation agent used as a functional material in the present invention, one that makes the wearer feel cold when the absorbent article comes into contact with the skin of the wearer can be used, and the mechanism thereof is not particularly limited. For example, i) it may act on the receptor activation channel (TRPM8) in the nerve of the skin, and ii) it may lower the ambient temperature by the heat of vaporization.
Specific examples of the cooling sensation agent of i) are derived from menthol (eg, l-menthol) and its derivatives (eg, menthyl lactate), methyl salicylate, camphor, cucumber extract, and plants (eg, mint, eucalyptus, nutmeg). An example of essential oil can be given.
As a specific example of the cooling sensation agent of ii), for example, alcohols such as methanol and ethanol can be exemplified.

As the antibacterial agent used as a functional material in the present invention, an antibacterial agent capable of suppressing the growth of bacteria can be used without particular limitation, and an antibacterial agent that acts to eliminate the source of odor, that is, the odor-causing agent is resident on the skin. Bacteria, intestinal bacteria, and those that have the effect of suppressing the growth of enzymes derived from these bacteria are preferable. For example, an antibacterial agent that suppresses or kills the growth and growth of bacteria involved in the generation of putrefactive odor of body fluid such as menstrual blood can be used. Examples of the antibacterial agent used as the functional material in the present invention include one or more selected from inorganic antibacterial agents, organic antibacterial agents and the like.

The inorganic antibacterial agent is selected from, for example, fine particle powder and acicular crystals in which antibacterial metal ions such as silver, zinc, copper, iron, magnesium, calcium, aluminum, antimony, and bismuth and salts are supported on a carrier. Alternatively, the carrier may include one or more selected from zeolite, silica gel, low molecular weight glass, calcium phosphate, zirconium phosphate, silicate, titanium oxide and the like.

Examples of the organic antibacterial agent include one or more selected from a cationic antibacterial agent, an anionic antibacterial agent and a nonionic antibacterial agent.
As anionic antibacterial agents, pyrocton olamine [1-hydroxy-4-methyl-6- (2,4,4-trimethylpentyl) -2 (1H) -pyridone monoethanolamine salt], potassium oleate, 1 -One or more selected from sodium pentasulfonate, sodium 1-decanesulfonate, sodium butylnaphthalene sulfonate, sodium dodecylsulfate, sodium dodecylbenzenesulfonate, sodium hexadecylsulfate and the like can be mentioned.
Examples of the nonionic antibacterial agent include one or a plurality selected from chlorhexidine hydrochloride, chlorhexidine gluconate, triclocarban, triclosan, isopropylmethylphenol, halocarban, paraoxybenzoic acid ester and the like.
Examples of the cationic antibacterial agent include those containing a quaternary ammonium salt. The quaternary ammonium salt can be used without particular limitation, and examples thereof include an alkylpyridinium salt, a benzethonium salt, a benzalconium salt, a monoalkyltrimethylammonium salt, a dialkyldimethylammonium salt, and the like, and the cation used in the present invention. The sex antibacterial agent can be these quaternary ammonium salts. Among the cationic antibacterial agents containing a quaternary ammonium salt, among the quaternary ammonium salts, cetylpyridinium chloride, benzethonium chloride, decalinium chloride, didecyldimethylammonium chloride, benzalkonium cetyl phosphate, benzalkonium chloride and the like Those containing one or more selected ones are preferable.
Benzalkonium chloride is an antibacterial agent sold by Kao Corporation under the trade name Sanizol B-50, and benzalkonium cetyl phosphate is an antibacterial agent sold by Kao Corporation under the trade name Sanizol P-2. Agents can be used.

Although the present invention has been described above based on the embodiment, the present invention can be appropriately modified without being limited to the embodiment.
For example, in the above embodiment, the first colored member is a back sheet, but other constituent members of the absorbent article may be a first colored member, for example, a top sheet, a second sheet, an absorber, and a side. The sheet can be the first colored member. The same applies to the second colored member, and in addition to the absorber, for example, a top sheet, a back sheet, a second sheet, and a side sheet can be the second colored member.
The absorbable article of the present invention broadly includes articles used for absorbing body fluids (menstrual blood, urine, loose stool, sweat, etc.) discharged from the human body, and includes the above-mentioned sanitary napkin, panty liner, and pantyliner sheet. , Incontinence pads, disposable diapers, etc. are included.

1 Sanitary napkin (absorbent article)
2 Absorbent body 3 Top sheet 4 Back sheet (1st colored member)
5,5A, 5B absorber (second colored member)
50 Central absorbent sheet 51 Main body absorbent sheet 52 Absorbent core 53 Core wrap sheet 5N Absorbent non-placement area 6 Second sheet 7 Side sheet 8 Skin side concave part 9 Non-skin side concave part 10 Main body adhesive part 11 Adhesive 15 Packaging Material 16 Fastening member 17 Color overlapping area 20 Individual body Sa Sanitary napkin (absorbent article) skin facing surface Sb Sanitary napkin (absorbent article) non-skin facing surface F Front area M Vertical center area R Rear area X Vertical Y Horizontal

Claims (8)

An absorber that has a skin-facing surface that can come into contact with the wearer's skin and a non-skin-facing surface that is located on the opposite side of the skin-facing surface and can absorb body fluids, and a back that forms the non-skin-facing surface. An absorbent article comprising a sheet.
A first colored member and a second colored member arranged closer to the wearer's skin than the first colored member and having a color different from the color of the first colored member, and both colored members Has a color overlap region where at least a part of each other overlaps in the thickness direction,
The color visible from the non-skin facing surface of the absorbent article in the color overlapping region is different from the color visible from the skin facing surface of the absorbent article in the color overlapping region, and the color of the first colored member. Absorbent article that is also different from. The color visually recognized from the non-skin facing surface of the absorbent article in the color overlapping region is a color of the same system as the color visible from the skin facing surface of the absorbent article in the color overlapping region. Absorbent article described in. ^{The color visible from the skin-facing surface of the absorbent article in the color overlap region is CIE1976 (L *} a ^* b) as compared to the color visible from the non-skin facing surface of the absorbent article in the color overlap region. ^* ) The absorbent article according to claim 1 or 2, which has a low ^{saturation C *} in the color system. The absorbent article according to any one of claims 1 to 3, wherein the back sheet is the first colored member and the absorber is the second colored member. The absorbent article according to any one of claims 1 to 4, wherein the first colored member is visible in purple by itself, and the second colored member is visible in blue by itself. The absorbent article according to any one of claims 1 to 5, wherein the total light transmittance of the back sheet is 20% or more and 80% or less. The one according to any one of claims 1 to 6, wherein the absorber has a recessed portion on a non-skin facing surface of the absorber, and the back sheet is not joined to the absorber at the recessed portion. Absorbent article. A packaging material for packaging the absorbent article is arranged on the non-skin facing surface of the absorbent article.
When the absorbent article is folded together with the packaging material into the individual packaging material, the packaging material is located on the outer surface of the individual packaging material and the end portion of the packaging material is fixed at a predetermined position of the packaging material. , Fastening members are arranged,
The packaging material has a high light transmissive portion having a relatively high light transmissivity and a low light transmissive portion having a relatively low light transmissibility, and the fastening member is arranged in the low light transmissive portion.
The color of the fastening member is the same color as the color of the first colored member or the second colored member.
The absorption according to any one of claims 1 to 7, wherein the color of the first colored member or the second colored member can be visually recognized through the high light transmissive portion when the individual body is visually observed. Sex goods.

Images