Absorbent article

Abstract

The present disclosure aims to provide an absorbent article in which a display portion composed of a first display layer and a second display layer is excellent in visual recognition. The absorbent article of the present disclosure has the following structure. An absorbent article (1) including a first sheet (3) and a second sheet (9), characterized in that the first sheet has a first inner surface (5b) and a first outer surface (5a) constituting an outer surface of the absorbent article, the second sheet is disposed on an inner side compared to the first sheet and has a second outer surface (11a) and a second inner surface (11b), the absorbent article includes a display portion (19) on the outer surface, and the display portion includes a first display layer (7) disposed on the first outer surface and a second display layer (13) disposed between the first inner surface and the second outer surface, the second display layer is disposed adjacent to the first display layer in a planar direction (P), and the first display layer and the second display layer are visually recognizable from the outer surface.

Description

Technical Field

[0001] The present disclosure relates to absorbent articles. Background Art

[0002] Arrangement of illustrations and the like on absorbent articles such as disposable diapers is performed from various viewpoints.

[0003] For example, Patent Document 1 discloses a method of adjusting the target age of the disposable diaper by changing the illustration displayed on the illustration display portion of the disposable diaper including the illustration display portion for displaying predetermined illustrations.

[0004] Furthermore, paragraphs 0049 and 0050 of Patent Document 1 describe that illustrations such as patterns 11 and 13 can be arranged on the outer surface of the outer portion 4 .

[0005] Prior art literature

[0006] Patent Literature

[0007] Patent Document 1: Japanese Patent Application Laid-Open No. 2004-105668 Summary of the Invention

[0008] Problems to be solved by the invention

[0009] In the disposable diaper described in patent document 1, since the illustration can be arranged on the outer surface of the outer part 4, the visual recognition of the illustration is higher than the case where the illustration part is arranged on the inner surface of the outer part 4. However, there is room for improvement from the perspective of the visual recognition of the illustration due to the characteristics of the outer part composed of non-woven fabric, etc.

[0010] Therefore, an object of the present disclosure is to provide an absorbent article having a display portion composed of a first display layer and a second display layer with excellent visibility.

[0011] Means for solving problems

[0012] The present inventors have discovered the following absorbent article, which includes a first sheet and a second sheet, and has a planar direction and a thickness direction, and is characterized in that the first sheet has a first outer surface and a first inner surface, the first outer surface constituting the outer surface of the absorbent article, the second sheet is arranged on the inner side compared to the first sheet, and has a second outer surface and a second inner surface, the absorbent article has a display portion on the outer surface, and the display portion has a first display layer and a second display layer, the first display layer is arranged on the first outer surface of the first sheet, and the second display layer is arranged between the first inner surface of the first sheet and the second outer surface of the second sheet, and in the planar direction, the second display layer is arranged adjacent to the first display layer, and the first display layer and the second display layer can be visually identified from the outer surface.

[0013] Effects of the Invention

[0014] The absorbent article of the present disclosure has an excellent visibility of the display portion composed of the first display layer and the second display layer. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a figure for demonstrating the disposable diaper 1 based on 1st Embodiment.

[0016] Figure 2 It is a figure for demonstrating the disposable diaper 1 based on 1st Embodiment.

[0017] Figure 3 It is a figure for demonstrating the disposable diaper 1 based on 1st Embodiment.

[0018] Figure 4 It is a figure for demonstrating the disposable diaper 1 based on 1st Embodiment.

[0019] Figure 5 It is a figure for demonstrating the disposable diaper 1 based on 1st Embodiment.

[0020] Figure 6 It is a figure for demonstrating the disposable diaper 1 based on 1st Embodiment.

[0021] Figure 7 It is a figure for demonstrating the disposable diaper 1 based on 1st Embodiment. DETAILED DESCRIPTION

[0022] [definition]

[0023] "Opposite colors" and "colors from the same series"

[0024] In this specification, "opposite colors" and "colors of the same series" are defined in "3.1 Method of displaying color tones" of JIS Z 8721 1993. Figure 1The divisions of R, YR, Y, GY, G, BG, B, PB, P, and RP divided in the "division of the hue ring" are used as a basis.

[0025] In addition, in the "3.1 color display method" Figure 1 In the figure, the divisions of R, YR, Y, GY, G, BG, B, PB, P and RP are arranged around to form a circle.

[0026] R, YR, Y, GY, G, BG, B, PB, P, and RP are also referred to as red, yellow-red, yellow, yellow-green, green, cyan, blue, cyan, violet, and magenta, respectively. In this specification, for ease of understanding, R, YR, Y, GY, G, BG, B, PB, P, and RP may be referred to as R (red), YR (yellow-red), Y (yellow), GY (yellow-green), G (green), BG (cyan), B (blue), PB (cyan), P (violet), and RP (magenta), respectively.

[0027] In this specification, when two contrasting colors, namely a first color and a second color, are "opposite colors," it means that in the hue circle, the second color exists in five subareas centered on the subarea opposite to the subarea of ​​the first color.

[0028] For example, when the first color exists in the R (red) partition, and the second color exists in any of the five partitions GY (yellow-green), G (green), BG (cyan), B (blue) or PB (blue-purple) with the partition on the opposite side of the R (red) partition, that is, the BG (cyan) partition as the center, the first color and the second color are called opposite colors.

[0029] In this specification, when two colors to be contrasted, namely a first color and a second color, are "colors of the same series", it means that in the hue circle, the second color exists in five subareas centered on the subarea of ​​the first color.

[0030] For example, when the first color exists in the R (red) partition, and when the second color exists in any of the five partitions of P (purple), RP (red-purple), R (red), YR (yellow-red) or Y (yellow) with the R (red) partition as the center, the first color and the second color are said to be in the same series of colors.

[0031] "Advancing colors" and "receding colors"

[0032] In this specification, "advancing color" and "receding color" are defined in "3.1 Method of displaying color tones" of JIS Z 8721 1993. Figure 1The divisions of R, YR, Y, GY, G, BG, B, PB, P, and RP divided in the "division of the hue ring" are used as a basis.

[0033] In this specification, the “progressive color” refers to a color existing in five regions: RP (red), R (red), YR (yellow-red), Y (yellow), and GY (yellow-green).

[0034] In this specification, the “fading color” refers to a color existing in five sections: G (green), BG (cyan), B (blue), PB (blue-violet), and P (violet).

[0035] The present disclosure relates to the following aspects.

[0036] [Form 1]

[0037] An absorbent article comprising a first sheet and a second sheet, and having a planar direction and a thickness direction, wherein:

[0038] The first sheet has a first outer surface and a first inner surface, the first outer surface constituting the outer surface of the absorbent article,

[0039] The second sheet is arranged on the inner side of the first sheet and has a second outer surface and a second inner surface.

[0040] The absorbent article includes a display portion on the outer surface, and the display portion includes a first display layer and a second display layer, the first display layer is arranged on the first outer surface of the first sheet, and the second display layer is arranged between the first inner surface of the first sheet and the second outer surface of the second sheet.

[0041] In the planar direction, the second display layer is arranged adjacent to the first display layer.

[0042] The first display layer and the second display layer can be visually identified from the outer surface.

[0043] The absorbent article comprises a predetermined first display layer relatively arranged on the outside and a predetermined second display layer relatively arranged on the inside, and the display portion formed by the first display layer and the second display layer can be visually identified from the outer surface of the absorbent article. Therefore, when the positional relationship between the user and the absorbent article changes relative to each other, such as before using the absorbent article, when the absorbent article is unfolded, or when the absorbent article is worn, the user can feel the first display layer relatively arranged on the outside move relative to the second display layer relatively arranged on the inside, and the user can easily notice the existence of the display portion. As a result, the display portion formed by the first display layer and the second display layer of the absorbent article has excellent visual recognition.

[0044] In addition, in this specification, the feeling of relative movement may be referred to as "relative movement sense".

[0045] Furthermore, for example, when the absorbent article is a disposable diaper for infants, it can be expected that the quality and amount of communication between the infant wearing the absorbent article and the mother who has the infant wear the absorbent article will be improved via the display unit.

[0046] [Form 2]

[0047] The absorbent article according to aspect 1, wherein a portion of the second indicator layer overlaps with the first indicator layer in the thickness direction.

[0048] In the absorbent article, the second display layer partially overlaps the first display layer in the thickness direction. Therefore, when the relative position between the user and the absorbent article changes, the user can visually distinguish between the first and second display layers. Furthermore, the relative movement of the first and second display layers makes the user more aware of the presence of the display portion. As a result, the display portion of the absorbent article has excellent visual recognition.

[0049] [Form 3]

[0050] The absorbent article according to form 1 or 2, wherein the first display layer includes a first opposite color portion having a first opposite color, the second display layer includes a second opposite color portion having a second opposite color, and the first opposite color and the second opposite color constitute opposite colors.

[0051] In the absorbent article described above, the first display layer and the second display layer each include a predetermined first same-series color portion and a second same-series color portion. Thus, when the positional relationship between the user and the absorbent article relatively changes, the user can visually recognize both the first display layer and the second display layer including the same-series colors, and easily notice the presence of the display portion by the relative movement sense of the first display layer and the second display layer. As a result, the display portion of the absorbent article described above is excellent in visual recognition.

[0052] [Mode 4]

[0053] The absorbent article according to any one of Modes 1 to 3, wherein the first display layer includes a first same-series color portion having a first same-series color, and the second display layer includes a second same-series color portion having a second same-series color, the first same-series color and the second same-series color constituting a same-series color.

[0054] In the absorbent article described above, the first display layer and the second display layer each include a predetermined first same-series color portion and a second same-series color portion. Thus, when the positional relationship between the user and the absorbent article relatively changes, the user can visually recognize both the first display layer and the second display layer including the same-series colors, and easily notice the presence of the display portion by the relative movement sense of the first display layer and the second display layer. As a result, the display portion of the absorbent article described above is excellent in visual recognition.

[0055] [Mode 5]

[0056] The absorbent article according to Mode 4, wherein the first same-series color has a different lightness from the second same-series color.

[0057] In the absorbent article described above, since the first same-series color has a different lightness from the second same-series color, the user can feel the unity of the first display layer and the second display layer, and easily feel the relative movement sense of the first display layer and the second display layer.

[0058] [Mode 6]

[0059] The absorbent article according to Mode 4 or 5, wherein the first same-series color has a lower lightness than the second same-series color.

[0060] In the absorbent article described above, since the first same-series color has a lower lightness than the second same-series color, the user can feel the unity of the first display layer and the second display layer, and easily feel the relative movement sense of the first display layer and the second display layer.

[0061] [Mode 7]

[0062] The absorbent article according to any one of aspects 4 to 6, wherein the first color of the same series has a higher chroma than the second color of the same series.

[0063] In the absorbent article, since the first color of the same series has a higher chroma than the second color of the same series, the user can feel the unity of the first display layer and the second display layer and easily feel the relative movement of the first display layer and the second display layer.

[0064] [Form 8]

[0065] The absorbent article according to any one of aspects 1 to 7, wherein the first indicator layer includes a advancing color portion having an advancing color.

[0066] In the absorbent article, the first display layer includes a portion having a forward color. Therefore, the user easily perceives that the first display layer is positioned forward of the second display layer. Consequently, when the relative position between the user and the absorbent article changes, the user easily perceives the relative movement of the first and second display layers, making the user more aware of the presence of the display portion. Consequently, the display portion of the absorbent article has excellent visual recognition.

[0067] [Form 9]

[0068] The absorbent article according to any one of aspects 1 to 8, wherein the second indicator layer includes a late fading color portion having a late fading color.

[0069] In the absorbent article, the second display layer includes a fading portion. Therefore, the user easily perceives that the second display layer is positioned further inward than the first display layer. Consequently, when the relative position between the user and the absorbent article changes, the user easily perceives the relative movement of the first and second display layers, making the user more aware of the presence of the display portion. Consequently, the display portion of the absorbent article exhibits excellent visual recognition.

[0070] [Form 10]

[0071] The absorbent article according to any one of aspects 1 to 9, wherein the first sheet and the second sheet are adjacent to each other in the thickness direction.

[0072] In the absorbent article, the first sheet and the second sheet are adjacent in the thickness direction. Therefore, the user can easily and clearly visually identify the second display layer from the outer surface of the absorbent article. Consequently, when the relative positional relationship between the user and the absorbent article changes, the user easily perceives the relative movement of the first and second display layers, making the user more aware of the presence of the display portion. Consequently, the display portion of the absorbent article has excellent visual recognition.

[0073] [Form 11]

[0074] The absorbent article according to any one of aspects 1 to 10, wherein the second indicator layer is arranged on the second outer surface of the second sheet.

[0075] In the absorbent article, since the second display layer is disposed on the second outer surface of the second sheet, the user is more likely to feel the relative movement of the first and second display layers when the positional relationship between the user and the absorbent article changes, and the user is more likely to notice the presence of the display portion. As a result, the display portion of the absorbent article has excellent visual recognition, compared to a case where the second display layer is disposed on the first inner surface of the first sheet.

[0076] [Form 12]

[0077] The absorbent article according to aspect 11, wherein the display portion includes a portion where the first sheet and the second sheet are not joined to each other.

[0078] In the absorbent article, the display portion includes a portion where the first and second sheets are not joined. Therefore, the first sheet comprising the first display layer and the second sheet comprising the second display layer can move independently in the display portion. When the relative positional relationship between the user and the absorbent article changes, the user easily senses the relative movement of the first and second display layers, making the user more aware of the presence of the display portion. As a result, the display portion of the absorbent article exhibits excellent visual recognition.

[0079] [Form 13]

[0080] The absorbent article according to any one of aspects 1 to 12, wherein the first indicator layer has a glossiness higher by 5 or more than that of the second indicator layer.

[0081] In the absorbent article, because the first display layer has a glossiness that is at least 5 degrees higher than that of the second display layer, the user easily perceives the relative movement of the first and second display layers when the relative position of the user and the absorbent article changes, making the user more aware of the presence of the display portion. As a result, the display portion of the absorbent article has excellent visual recognition.

[0082] [Form 14]

[0083] The absorbent article according to any one of aspects 1 to 13, wherein the first indicator layer is made of foil.

[0084] In the absorbent article, since the first indicator layer is made of foil, the user can easily notice the presence of the indicator portion. As a result, the display portion of the absorbent article has excellent visibility.

[0085] [Form 15]

[0086] The absorbent article according to any one of aspects 1 to 14, wherein the combination of the first sheet and the second sheet is a combination of an outer sheet and a liquid-impermeable sheet, a combination of a target tape and an outer sheet, or a combination of a target tape and a liquid-impermeable sheet.

[0087] In the absorbent article described above, since the first sheet and the second sheet are formed of predetermined sheets, the effects of aspect 1 are more easily exhibited.

[0088] [Form 16]

[0089] The absorbent article according to any one of aspects 1 to 15, wherein the absorbent article is a disposable diaper having a longitudinal direction and folded at the center of the longitudinal direction, and the outer surface is an outer surface of the folded disposable diaper.

[0090] Since the absorbent article is a disposable diaper and the display portion is arranged on the outer surface of the folded disposable diaper, the display portion of the absorbent article is highly visible in the folded state.

[0091] [Form 17]

[0092] An absorbent article according to any one of forms 1 to 16, wherein the absorbent article has an absorbent body and is divided into an overlapping area overlapping with the absorbent body and a non-overlapping area not overlapping with the absorbent body in the thickness direction, and at least a portion of each of the first display layer and the second display layer is arranged in the non-overlapping area.

[0093] In the absorbent article, at least a portion of each of the first and second display layers is located in a predetermined non-overlapping region. Therefore, while wearing the absorbent article, the user easily focuses on the display portion located in the non-overlapping region. When the positional relationship between the user and the absorbent article changes, the user easily perceives the relative movement of the first and second display layers, making the user more aware of the presence of the display portion. As a result, the display portion of the absorbent article exhibits excellent visual recognition.

[0094] Hereinafter, the absorbent article of the present disclosure will be described in detail.

[0095] Figures 1 to 7 This is a diagram for explaining an absorbent article according to one embodiment of the present disclosure (hereinafter referred to as "first embodiment"), specifically, a tape-type disposable diaper 1. Specifically, Figure 1 and Figure 2 These are views showing the outer surface and the inner surface of the disposable diaper 1, respectively. Figure 31 and 2 are diagrams showing the outer sheet outer surface 5 a of the outer sheet 3 . Figure 4 1 and 2 are diagrams showing the liquid-impermeable sheet outer surface 11 a of the liquid-impermeable sheet 9 . Figure 5 It is a partially exploded perspective view of the disposable diaper 1 . Figure 6 and Figure 7 These are views showing the disposable diaper 1 as viewed from the left and right sides, respectively.

[0096] The disposable diaper 1 has a longitudinal direction L, a width direction W, and a thickness direction T that are orthogonal to each other and constitute a plane direction P. In the thickness direction T, it has an outer packaging sheet 3 as a first sheet, a liquid-impermeable sheet 9 as a second sheet, an absorbent body 15, and a liquid-permeable sheet 17 in this order.

[0097] The outer sheet 3 corresponding to the first sheet includes an outer sheet outer surface 5a constituting the outer surface of the disposable diaper 1 and an outer sheet inner surface 5b on the side of the liquid-impermeable sheet 9. The outer sheet outer surface 5a and the outer sheet inner surface 5b respectively correspond to the first outer surface and the first inner surface of the first sheet.

[0098] The liquid-impermeable sheet 9, which corresponds to the second sheet, includes a liquid-impermeable sheet outer surface 11a on the side of the outer sheet 3 and a liquid-impermeable sheet inner surface 11b on the side of the absorbent body 15. The liquid-impermeable sheet outer surface 11a and the liquid-impermeable sheet inner surface 11b correspond to the second outer surface and the second inner surface of the second sheet, respectively.

[0099] The disposable diaper 1 is divided into a ventral part P in the longitudinal direction L. A , dorsal part P B , ventral part P A and dorsal part P B The crotch between C .

[0100] The long side direction L is the same direction as the length direction of the disposable diaper 1. The disposable diaper 1 is placed in a disposable diaper packaging in a folded state (not shown) with the liquid-permeable sheet 17 facing inward and the outer packaging sheet 3 facing outward at a position of the long side center line CL which is arranged in the center of the long side direction L (longitudinal direction) and extends parallel to the width direction W.

[0101] The disposable diaper 1 is divided into an overlapping region R in the thickness direction T, which overlaps with the absorbent body 15. O and the non-overlapping region R which does not overlap with the absorbent body 15 N .

[0102] The disposable diaper 1 includes a pair of engaging tapes 21 and a target tape 23 for engaging the pair of engaging tapes 21 .

[0103] The disposable diaper 1 includes a pair of side panels 101 on its skin side, which are arranged at both ends in the width direction W and extend along the longitudinal direction L. Each of the pair of side panels 101 has a fixing portion 103 arranged at both ends in the longitudinal direction L and a leak-proof wall 105 between the fixing portions 103 on the inner side of the width direction W. The leak-proof wall 105 is located between the fixing portions 103 on the front and rear sides of the side panels 101 in the longitudinal direction L. The outer end edges in the width direction W are fixed to the disposable diaper 1 and form fixed ends, while the inner end edges in the width direction W are not fixed and constitute free ends. The leak-proof wall 105 includes two elastic members 107 at the inner ends in the width direction W. The two elastic members 107 extend along the longitudinal direction L and are composed of rubber threads.

[0104] Disposable diaper 1 from the crotch P C Originates from the dorsal part P B and ventral part P A The plurality of elastic members 109 are provided for leg gathers. The plurality of elastic members 109 are extended between the pair of side panels 101 and the outer sheet 3 in the thickness direction T, extended at both ends of the disposable diaper 1 in the width direction W, and mainly at the crotch portion P in the longitudinal direction L. C It extends along the longitudinal direction L.

[0105] The disposable diaper 1 has a ventral portion P on its outer surface. A Up to the crotch P C The display unit 19 is provided. The display unit 19 is composed of an outer sheet display layer 7 (first display layer) disposed on the outer sheet outer surface 5a (first outer surface) of the outer sheet 3 (first sheet), and a liquid-impermeable sheet display layer 13 (second display layer) disposed on the liquid-impermeable sheet outer surface 11a (second outer surface) of the liquid-impermeable sheet 9 (second sheet).

[0106] The outer sheet display layer 7 is composed of a running puppy, colored orange and bordered in black. The liquid-impermeable sheet display layer 13 is composed of grass for the puppy to run in, also depicting the puppy's shadow. The grass is colored green and unbordered.

[0107] The outer sheet display layer 7 and the liquid-impermeable sheet display layer 13 are arranged adjacent to each other in the planar direction P, and in the thickness direction T, they partially overlap and the remaining portions do not overlap.

[0108] The outer sheet display layer 7 and the liquid-impermeable sheet display layer 13 can be visually recognized from the outer surface of the disposable diaper 1 .

[0109] The orange outer sheet display layer 7 and the green liquid-impermeable sheet display layer 13 have opposite colors. The orange outer sheet display layer 7 is an advancing color, and the green liquid-impermeable sheet display layer 13 is a receding color.

[0110] Therefore, the display portion composed of the outer sheet display layer 7 and the liquid-impermeable sheet display layer 13 has excellent visibility, and it is easy to feel that the outer sheet display layer 7 is positioned in front, and it is easy to feel that the liquid-impermeable sheet display layer 13 is positioned in the back. As a result, when the relative positional relationship between the wearer and the disposable diaper 1 changes, the wearer can easily feel the relative movement of the running puppy (outer sheet display layer 7) with respect to the grass (liquid-impermeable sheet display layer 13).

[0111] Specifically, if Figure 6 As shown, when the disposable diaper 1 is viewed from the left, the running puppy (the outer sheet display layer 7) in the display portion 19 appears to be positioned behind the grass (the liquid-impermeable sheet display layer 13). Figure 7 As shown, when the disposable diaper 1 is viewed from the right side, the running puppy (the outer sheet display layer 7) in the display portion 19 appears to be arranged in front of the grass (the liquid-impermeable sheet display layer 13).

[0112] As a result, the user can easily notice the presence of the display portion 19 , and the display portion 19 of the disposable diaper 1 has excellent visibility.

[0113] Furthermore, since the display portion 19, that is, the outer sheet display layer 7 and the liquid-impermeable sheet display layer 13, are mostly arranged in the overlapping region R overlapping with the absorbent body 15, O Therefore, when the disposable diaper 1 is worn, the display portion 19 has excellent visual recognition. Furthermore, when the positional relationship between the user and the disposable diaper 1 changes relatively, the user can easily feel the relative movement of the outer packaging sheet display layer 7 and the liquid-impermeable sheet display layer 13, and the user can easily notice the existence of the display portion 19.

[0114] In the absorbent article disclosed herein, each of the first sheet and the second sheet is not particularly limited as long as the first sheet has a first outer surface constituting the outer surface of the absorbent article and the second sheet is arranged at a position closer to the inside than the first sheet. Examples of the sheet that can be used include an outer packaging sheet, a liquid-impermeable sheet, an absorbent body, a core wrapping sheet, a side sheet, an auxiliary sheet (for example, a component arranged between the absorbent body and the liquid-impermeable sheet), a target belt, etc.

[0115] Examples of the first sheet include an outer sheet, a target tape, etc. Examples of the second sheet include a liquid-impermeable sheet, an absorbent body, a core wrap sheet, a side sheet, and an auxiliary sheet.

[0116] Examples of the combination of the first sheet and the second sheet include a combination of an outer sheet and a liquid-impermeable sheet, and a combination of a target tape and an outer sheet.

[0117] The absorbent article disclosed herein can include a first sheet and a second sheet adjacent to each other in the thickness direction. Alternatively, the absorbent article can include one or more additional sheets between the first sheet and the second sheet, but not adjacent to each other in the thickness direction. In other words, the absorbent article can include a first sheet, one or more additional sheets, and a second sheet in that order. Preferably, the first sheet and the second sheet are adjacent to each other in the thickness direction. This makes it easier for the user to clearly visually identify the second display layer from the outer surface of the absorbent article. Consequently, when the positional relationship between the user and the absorbent article changes relative to each other, the user can easily sense the relative movement of the first and second display layers, making it easier for the user to notice the presence of the display portion.

[0118] Each of the first sheet and the second sheet can be made of, for example, a fabric (eg, nonwoven fabric, woven fabric, or textile), a film, or the like.

[0119] In the absorbent article disclosed herein, preferably, the first sheet and the second sheet include a non-joined portion in the display portion (specifically, the region where the first display layer or the second display layer is located in the planar direction), and more preferably, the first sheet and the second sheet are not joined to each other in the entire region of the display portion. Thus, in the display portion, the first sheet having the first display layer and the second sheet having the second display layer can move independently. When the relative positional relationship between the user and the absorbent article changes, the user can easily feel the relative movement of the first display layer and the second display layer, and the user can easily notice the presence of the display portion.

[0120] The absorbent article disclosed herein includes a display portion on its outer surface. The display portion includes a first display layer disposed on a first outer surface of a first sheet and a second display layer disposed between a first inner surface of the first sheet and a second outer surface of a second sheet.

[0121] The first display layer is configured on the first outer surface of the first sheet.

[0122] The second display layer can be placed on either the first inner surface of the first sheet or the second outer surface of the second sheet, and is preferably placed on the second outer surface of the second sheet. Thus, compared to a case where the second display layer is placed on the first inner surface of the first sheet, when the positional relationship between the user and the absorbent article changes relative to each other, the user is more likely to feel the relative movement of the first and second display layers, and the user is more likely to notice the presence of the display portion.

[0123] In the absorbent article disclosed herein, the second display layer is disposed adjacent to the first display layer in a planar direction. Thus, when the relative positional relationship between the user and the absorbent article changes, the user can easily sense the relative movement of the first and second display layers, making the user more aware of the presence of the display portion.

[0124] In this specification, "the second display layer is disposed adjacent to the first display layer in a planar direction" means that the distance between the closest portions of the first display layer and the second display layer in the planar direction, i.e., the shortest distance, is 5.0 cm or less. This shortest distance is preferably 2.0 cm or less, more preferably 1.0 cm or less, even more preferably 5 mm or less, and even more preferably 0 mm.

[0125] Furthermore, the shortest distance of 0 mm means that the first display layer and the second display layer have an unseparated portion in the planar direction.

[0126] Preferably, a portion of the second display layer overlaps with the first display layer in the thickness direction, while the remaining portion of the second display layer does not overlap with the first display layer in the thickness direction. Thus, when the relative positional relationship between the user and the absorbent article changes, the user can easily visually distinguish between the first and second display layers, easily perceive relative movement of the first and second display layers, and easily notice the presence of the display portion.

[0127] To enable visual identification of the second display layer from the outer surface of the absorbent article, the outer sheet assembly located outside the absorbent article relative to the second display layer preferably has a light transmittance of 40% or greater, more preferably 50% or greater, and even more preferably 60% or greater. Furthermore, the outer sheet assembly preferably has a light transmittance of 95% or less, more preferably 92% or less, and even more preferably 89% or less. This allows the user to visually identify both the first and second display layers when the relative position of the user and the absorbent article changes. The user also easily perceives the relative movement of the first and second display layers, making it easier for the user to notice the presence of the display portion.

[0128] In addition, when the first sheet and the second sheet are adjacent to each other in the thickness direction, the outer sheet group refers to the first sheet, and when one or more additional sheets are included between the first sheet and the second sheet, the outer sheet group includes the first sheet and one or more additional sheets.

[0129] In this specification, the light transmittance is measured according to "Part 1: Single-beam method" of JIS K 7361-1:1997, Test Method for Total Light Transmittance of Plastics - Transparent Materials. A measuring instrument can be used, for example, a haze meter NDH-7000SPII manufactured by Nippon Denshoku Industries.

[0130] In the absorbent article of the present disclosure, both the first display layer and the second display layer may include portions of opposite colors. Specifically, the first display layer includes a first opposite color portion having a first opposite color, and the second display layer includes a second opposite color portion having a second opposite color. Furthermore, the first opposite color and the second opposite color may form opposite colors.

[0131] The first display layer can have a first portion of opposite color, preferably comprising 20% ​​or more, more preferably 40% or more, and even more preferably 80% or more of the area of ​​the first display layer. Furthermore, the second display layer can have a second portion of opposite color, preferably comprising 20% ​​or more, more preferably 40% or more, and even more preferably 80% or more of the area of ​​the second display layer. This allows the user to visually distinguish between the first and second display layers, which are of opposite colors, and easily perceive the relative movement of the first and second display layers.

[0132] When the first opposite color and the second opposite color constitute opposite colors, the second opposite color exists in five subareas centered around the subarea on the opposite side of the subarea of ​​the first opposite color, preferably exists in three subareas centered around the subarea on the opposite side of the subarea of ​​the first opposite color, and more preferably exists in the subarea on the opposite side of the subarea of ​​the first opposite color. This allows the user to visually distinguish between the first display layer and the second display layer, which are in an opposite color relationship, and easily perceive the relative movement of the first display layer and the second display layer.

[0133] In the absorbent article of the present disclosure, both the first display layer and the second display layer can include portions that form a homologous color series. Specifically, the first display layer includes a first homologous color series portion having a first homologous color series, and the second display layer includes a second homologous color series portion having a second homologous color series. Furthermore, the first homologous color series and the second homologous color series can form a homologous color series.

[0134] When the first and second colors of the same series form a color system, the second color of the same series exists in five subareas centered on the subarea of ​​the first color of the same series, preferably exists in three subareas centered on the subarea of ​​the first color of the same series, and more preferably exists in the same subarea as the first color of the same series. This allows the user to feel a sense of unity between the first and second display layers and easily perceive the relative movement of the first and second display layers.

[0135] Preferably, the first color from the same series and the second color from the same series have different lightnesses. More preferably, the lightness difference between the first color from the same series and the second color from the same series is 5 or more, further preferably, the lightness difference between the first color from the same series and the second color from the same series is 15 or more, further preferably, the lightness difference between the first color from the same series and the second color from the same series is 30 or more, and even more preferably, the lightness difference between the first color from the same series and the second color from the same series is 50 or more. This allows the user to feel a sense of unity between the first display layer and the second display layer, and to easily perceive the relative movement between the first display layer and the second display layer.

[0136] Preferably, the first color of the same series has a lower lightness than the second color of the same series. More preferably, the first color of the same series has a lightness that is 5 or more lower than the second color of the same series. Even more preferably, the first color of the same series has a lightness that is 15 or more lower than the second color of the same series. Even more preferably, the first color of the same series has a lightness that is 30 or more lower than the second color of the same series. Even more preferably, the first color of the same series has a lightness that is 50 or more lower than the second color of the same series. This makes it easier for the user to perceive the relative movement of the first display layer and the second display layer.

[0137] Preferably, the first color of the same series has a higher chroma than the second color of the same series. More preferably, the first color of the same series has a chroma that is 5 or more higher than the second color of the same series. Even more preferably, the first color of the same series has a chroma that is 10 or more higher than the second color of the same series. Even more preferably, the first color of the same series has a chroma that is 15 or more higher than the second color of the same series. Even more preferably, the first color of the same series has a chroma that is 20 or more higher than the second color of the same series. This allows the user to feel a sense of unity between the first and second display layers and easily perceive the relative movement of the first and second display layers.

[0138] In this specification, lightness and chroma are measured as follows.

[0139] (1) An X-Rite eXact Standard (measurement diameter: 1.5 mm) manufactured by X-Rite Corporation was prepared.

[0140] (2) Change the position and measure the CIE L of the part of the sample to be measured. * a * b * Coordinates are measured at more than ten points, and their average value is calculated ([L1 * 、a1 * 、b1 * ]).

[0141] (3) Brightness directly uses L1 * .

[0142] (4) Chroma: C1 is calculated using the following formula: * :

[0143] Mathematical formula 1

[0144]

[0145] In this case, it is preferred that the first color of the same series have a lower lightness or a higher chroma than the second color of the same series, and it is more preferred that the first color of the same series have a lower lightness and a higher chroma than the second color of the same series. Furthermore, the first display layer can have a portion of the first color of the same series in an area ratio of preferably 20% or more, more preferably 40% or more, and even more preferably 80% or more of the first display layer. Furthermore, the second display layer can have a portion of the second color of the same series in an area ratio of preferably 20% or more, more preferably 40% or more, and even more preferably 80% or more of the second display layer. This allows the user to perceive a sense of unity between the first and second display layers and easily perceive the relative movement of the first and second display layers.

[0146] In this specification, the area ratio of the first opposite color portion or the first same color portion to the first display layer and the area ratio of the second opposite color portion or the second same color portion to the second display layer can be measured as follows.

[0147] (1) The absorbent article is held in a state in which it is extended in the longitudinal direction and the width direction.

[0148] (2) Using a scanner, the portion of the outer surface of the absorbent article containing the display portion is captured as an image. The scanning resolution may vary depending on the size of the display portion (particularly the first contrasting color portion, the first homochromatic color portion, the second contrasting color portion, and the second homochromatic color portion), and may be, for example, 300 dpi, 600 dpi, or 1200 dpi.

[0149] (3) Using UNAnalyzer from UNIQ CORPORATION (Japanese: 株式集團ユニーク), the number of pixels n in the target portion (first opposite color portion, first same color portion, second opposite color portion, or second same color portion) is counted.

[0150] (4) Similarly, the number of pixels m of the target display layer (the first display layer or the second display layer) is counted.

[0151] (5) Area ratio: Calculate R (%) using the following formula:

[0152] R(%)=100×n / m.

[0153] In the absorbent article disclosed herein, the first display layer can include a portion having a forward color. This forward color exists in any of the five sub-zones: RP (red), R (red), YR (yellow-red), Y (yellow), and GY (yellow-green). Preferably, it exists in any of the three sub-zones: R (red), YR (yellow-red), and Y (yellow). This allows the user to easily perceive that the first display layer is positioned forward of the second display layer.

[0154] In the absorbent article disclosed herein, the second display layer can include a fading color portion having a fading color. This fading color exists in any of the five sub-zones: G (green), BG (cyan), B (blue), PB (blue-violet), and P (purple). Preferably, it exists in any of the three sub-zones: G (green), BG (cyan), and B (blue). This makes it easier for the user to perceive that the second display layer is positioned further back than the first display layer.

[0155] In the case of the absorbent article disclosed herein having an absorbent body, when the absorbent article is divided in the thickness direction into an overlapping region that overlaps with the absorbent body and a non-overlapping region that does not overlap with the absorbent body, the display portion can be arranged in either the overlapping region or the non-overlapping region, but is preferably arranged in the overlapping region. Because the absorbent body is present in the overlapping region, the absorbent article is less likely to be crushed when worn, making it easier for the user to focus on the display portion arranged in the non-overlapping region.

[0156] In the absorbent article of the present disclosure, the first display layer preferably has a glossiness that is 5 or more higher than that of the second display layer, more preferably 10 or more higher than that of the second display layer, further preferably 20 or more higher than that of the second display layer, and even more preferably 30 or more higher than that of the second display layer. Thus, when the relative positional relationship between the user and the absorbent article changes, the user can easily sense the relative movement of the first and second display layers.

[0157] In addition, the upper limit of the glossiness difference is 85.

[0158] The glossiness was measured from the outer surface of the absorbent article using a glossmeter IG-331 (manufactured by Horiba, Ltd.) in accordance with "mirror glossiness" of JIS Z 8741:1997.

[0159] In the gloss tester IG-331, both the incident angle and the light receiving angle are 60°, and the measurement area is an ellipse with a major diameter of 6 mm and a minor diameter of 3 mm.

[0160] In the absorbent article of the present disclosure, the first indicator layer and the second indicator layer can be formed by a method known in the technical field, such as printing.

[0161] Alternatively, the first display layer may be formed of a foil. The foil is a thin, flat layer containing metal. Examples of the foil include a member formed by striking metal and extending it thinly and flatly, a member formed by laminating a synthetic resin layer or the like on a thin, flat extended structure, and a member formed by laminating a synthetic resin layer or the like on a layered structure containing metal.

[0162] Examples of the layered structure containing metal include a coating film containing a metal powder pigment and a metal vapor-deposited film.

[0163] The above-mentioned foil is transferred onto the first sheet by, for example, a foil pressing method (hot embossing method), and forms a first display layer composed of the foil.

[0164] The absorbent article disclosed herein is not particularly limited as long as it has a first sheet and a second sheet. Examples thereof include sanitary products such as absorbent articles, such as disposable diapers, urine-absorbing pads, incontinence pads, sanitary napkins, panty liners, sweat pads, and breast milk pads.

[0165] When the absorbent article disclosed herein is a folded disposable diaper, the display portion is preferably located on the outer surface of the folded disposable diaper. This provides excellent visual recognition of the display portion of the absorbent article. Examples of the folded disposable diaper include those folded in the center of the longitudinal direction.

[0166] Description of Reference Numerals

[0167] 1 disposable diaper

[0168] 3 outer packaging sheets

[0169] 5a Outer surface of outer packaging sheet

[0170] 5b Inner surface of outer packaging sheet

[0171] 7 Outer packaging display layer

[0172] 9 Liquid-impermeable sheet

[0173] 11a Liquid-impermeable sheet outer surface

[0174] 11b Inner surface of liquid-impermeable sheet

[0175] 13 Liquid-impermeable display layer

[0176] 15 Absorber

[0177] 17 Liquid-permeable sheet

[0178] 19 Display

[0179] 21 snap belt

[0180] 23 Target Zone

[0181] 101 side panels

[0182] 103 fixed part

[0183] 105 leak-proof wall

[0184] 107 elastic member

[0185] 109 elastic member

[0186] P plane direction

[0187] L Long side direction

[0188] W width direction

[0189] T thickness direction

[0190] P A ventral part

[0191] PB dorsal part

[0192] P C Crotch

[0193] CL Longitudinal center line

[0194] R O Overlapping area

[0195] R N Non-overlapping areas

Claims

1. An absorbent article comprising a first sheet and a second sheet, and having a planar direction and a thickness direction, wherein: The first sheet has a first outer surface and a first inner surface, the first outer surface constituting the outer surface of the absorbent article, The second sheet is arranged on the inner side of the first sheet and has a second outer surface and a second inner surface. The absorbent article includes a display portion on an outer surface of the absorbent article, and the display portion includes a first display layer and a second display layer, the first display layer is arranged on a first outer surface of a first sheet, and the second display layer is arranged between a first inner surface of the first sheet and a second outer surface of the second sheet. In the planar direction, the second display layer is arranged adjacent to the first display layer. The pattern formed by the combination of the first display layer and the second display layer can be visually recognized from the outer surface of the absorbent article. The second display layer is arranged on the second outer surface of the second sheet and has a second display layer overlapping portion and a second display layer remaining portion, the second display layer overlapping portion overlaps with the first display layer in the thickness direction and cannot be visually identified from the outer surface of the absorbent article, and the second display layer remaining portion does not overlap with the first display layer in the thickness direction and can be visually identified from the outer surface of the absorbent article. The display portion includes a portion where the first sheet and the second sheet are not joined to each other, When the absorbent article is viewed from different directions, the area occupied by the remaining portion of the second display layer changes, so that a relative movement of the first display layer and the second display layer is perceived.

2. The absorbent article according to claim 1, wherein The first display layer includes a first opposite color portion having a first opposite color, the second display layer includes a second opposite color portion having a second opposite color, and the first opposite color and the second opposite color constitute opposite colors.

3. The absorbent article according to claim 1 or 2, wherein The first display layer includes a first same series color portion having a first same series color, and the second display layer includes a second same series color portion having a second same series color. The first same series color and the second same series color constitute the same series color.

4. The absorbent article according to claim 3, wherein The first family color has a different lightness than the second family color.

5. The absorbent article according to claim 3, wherein The first color from the same family has a lower lightness than the second color from the same family.

6. The absorbent article according to claim 3, wherein The first color of the same family has a higher chroma than the second color of the same family.

7. The absorbent article according to claim 1 or 2, wherein The first display layer includes a advancing color portion having a advancing color.

8. The absorbent article according to claim 1 or 2, wherein The second display layer includes a receding color portion having a receding color.

9. The absorbent article according to claim 1 or 2, wherein The first sheet and the second sheet are adjacent to each other in the thickness direction.

10. The absorbent article according to claim 1 or 2, wherein The first display layer has a glossiness higher by 5 or more than that of the second display layer.

11. The absorbent article according to claim 1 or 2, wherein The first display layer consists of a foil.

12. The absorbent article according to claim 1 or 2, wherein The combination of the first sheet and the second sheet is a combination of an outer sheet and a liquid-impermeable sheet, a combination of a target tape and an outer sheet, or a combination of a target tape and a liquid-impermeable sheet.

13. The absorbent article according to claim 1 or 2, wherein The absorbent article is a disposable diaper having a longitudinal direction and being folded at the center of the longitudinal direction, and the outer surface of the absorbent article is the outer surface of the folded disposable diaper.

14. The absorbent article according to claim 1 or 2, wherein The absorbent article includes an absorbent body and is divided in the thickness direction into an overlapping region overlapping with the absorbent body and a non-overlapping region not overlapping with the absorbent body. At least a portion of each of the first display layer and the second display layer is arranged in the non-overlapping region.

Images