JP2016059650A - Underpants type disposable diaper - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an underpants type disposable diaper which has good appearance, and which facilitates positioning to a wearer's body and positioning of an absorbent pad.SOLUTION: A symbol 40 comprising non-coloring parts 41 (tint parts) which have relatively tint color, and coloring parts 42 (deep color parts) which have relatively deep color, is formed on an external body 3, in a manner that the symbol is visible from at least a skin facing surface side of the external body 3. In the vicinity of at least one side edge 2S out of both side edges 2S, 2S in a vertical direction X of an absorbent body 2, the non-coloring parts 41 and coloring parts 42 are alternately arranged along the side edge 2S, and when lengths in an extension direction where the side edge 2S extends, of adjacent non-coloring part 41 and coloring part 42 are compared, vertical length 42L of the coloring part 42 is longer than vertical length 41L of the non-coloring part 41.SELECTED DRAWING: Figure 5

Description

  The present invention relates to a pants-type disposable diaper that includes an absorbent main body and an outer package that fixes the absorbent main body, and a pattern is attached to the outer package.

  Conventionally, as a pants-type disposable diaper, comprising an absorbent main body configured to include an absorbent body, and an outer package that is arranged on the non-skin-facing surface side of the absorbent main body and fixes the absorbent main body, In addition, it is known that the left and right side edges of the outer package body are joined to each other in the front body and the back of the body to form a pair of side seal portions, a waist opening portion, and a pair of leg openings. Some of such pants-type disposable diapers are provided with various symbols so that they can be visually recognized from the outside.

  For example, Patent Literature 1 describes a pants-type disposable diaper in which a color design that can be recognized from the outside is printed on the entire non-skin facing surface side of a main body back sheet (outer package). The main body backsheet is composed of an inner backsheet nonwoven fabric and an outer backsheet nonwoven fabric bonded together by a hot melt adhesive, and the color design is the outer surface of the outer backsheet nonwoven fabric (non-skin facing surface). ) Or the inner surface (skin facing surface). In Patent Document 1, as the color design, in addition to a so-called checkered pattern in which white (ground color of the backsheet nonwoven fabric for outer surface) and other colors such as light blue are alternately arranged, a waveform, a polka dot, a cloud, a star There is a description in which a single pattern such as a shape or a lattice is continuously arranged in a plurality of rows and each pattern is given one or more appropriate colors. According to FIG.4 and FIG.5 of patent document 1, the shape and magnitude | size are the same as the white and other colors in this checkered pattern. According to Patent Document 1, a diaper having such a color design has high fashionability and can be worn as an underwear.

  Patent Document 2 also describes a pants-type disposable diaper having a design printed on a part of an inner surface (a surface facing another sheet) of a plurality of sheets constituting the outer package. Patent Document 2 describes a lattice pattern design including a plurality of straight lines parallel to each other in the longitudinal direction of the diaper and a plurality of straight lines parallel to each other in the width direction of the diaper as the design. This lattice pattern design is printed and formed on substantially the entire outer package. According to FIGS. 1 and 2 of Patent Document 2, in the design of the lattice pattern, the width of the non-printing portion surrounded by the straight line is larger than the width of the straight line. According to Patent Document 2, a diaper having such a design is excellent in the visibility of the design from the outside of the diaper, and when the design is a lattice pattern, the diaper is designed for an absorbent body or an outer package of an aftertreatment tape. It is said that the presence / absence of displacement and the amount of displacement can be known visually during a sampling test at the time of manufacture.

JP 2003-70838 A JP 2004-208836 A

  The color of pants-type disposable diapers that have been widely used in the past is white for both the absorbent main body and the outer packaging that secures it, so it is difficult to distinguish the absorbent main body from the outer packaging at first glance. Sometimes it is difficult to check whether the absorbent main body is placed in an appropriate position with respect to the wearer's body and to adjust the position of the absorbent main body. For example, when wearing a diaper, in order to prevent leakage of excrement, the waist part of the front body of the diaper being worn is pulled to provide a gap between the waist part and the wearer's body, and the diaper is opened from the gap. The internal state may be visually observed to confirm that the absorbent main body corresponds to the urination part of the wearer, but if it is difficult to distinguish the absorbent main body from the outer packaging, It is difficult to adjust the position when the absorbent main body is displaced with respect to the urination part.

  Conventionally, an absorbent pad that is separate from the diaper is used on the absorbent main body of the disposable diaper for the purpose of reducing the economic and labor burden associated with the treatment of excrement such as urine. Has been done. In such a usage pattern, if it is difficult to visually confirm the distinction between the absorbent main body and the outer package in the diaper overlaid with the absorbent pad, alignment and absorption for arranging the absorbent pad at an appropriate position It becomes difficult to adjust the position of the conductive pad. If the absorbent pad is used with a displacement, the excrement is likely to leak out of the diaper without being absorbed and held by the absorbent pad.

  The pants-type disposable diapers described in Patent Documents 1 and 2 have a good appearance as compared with a white diaper that has been widely used in the past because the design attached to the outer packaging is visible from the outside. However, it does not correspond to the above-mentioned problem of “difficult to distinguish between the absorbent main body and the outer package”. A pants-type disposable diaper that has a good appearance and can be easily aligned with the wearer's body and the absorbent pad is not yet provided.

  Therefore, the subject of this invention is related with the underpants type disposable diaper which has the favorable external appearance and can perform the alignment with respect to a wearer's body, and the alignment of an absorbent pad easily.

The present invention has an abdominal side portion disposed on the abdomen side of the wearer, a back side portion disposed on the back side, and a crotch portion positioned therebetween, and from the abdominal side portion to the crotch portion. A longitudinal direction extending to the dorsal side and a transverse direction perpendicular thereto, and the absorbent body and the non-skin facing surface side of the absorbent body are arranged to fix the absorbent body And a pair of side seals, a waist opening, and a pair of leg openings are formed by joining both side edges along the longitudinal direction of the outer packet in the abdomen and the dorsal side. A pants-type disposable diaper that has been
The outer package is provided with a pattern including a lighter-colored portion having a relatively light color and a darker-colored portion having a relatively dark color so as to be visible at least from the skin facing surface side of the outer package. ,
In the vicinity of at least one side edge of both side edges along the longitudinal direction of the absorbent main body, the light color part and the dark color part are alternately arranged along the one side edge, and adjacent to each other. A pants-type disposable diaper in which the dark color portion is longer in length than the light color portion when the length along the extending direction of the one side edge is compared between the light color portion and the dark color portion Is to provide.

  ADVANTAGE OF THE INVENTION According to this invention, the underpants type disposable diaper which has a favorable external appearance and can perform position alignment with respect to a wearer's body and position alignment of an absorbent pad easily is provided.

FIG. 1 is a perspective view schematically showing an embodiment of a pants-type disposable diaper of the present invention. FIG. 2 is a developed plan view schematically showing a partially broken skin facing surface side in the developed and extended state of the diaper shown in FIG. FIG. 3 is an exploded perspective view schematically showing the diaper shown in FIG. 1. FIG. 4 is a cross-sectional view schematically showing a cross section taken along the line II of FIG. FIG. 5 is an explanatory diagram of the main part of the diaper shown in FIG. 1, and is a schematic plan view of a part of the diaper on the skin facing surface side showing the relationship between the absorbent main body and the pattern attached to the outer package. FIG. FIG. 6 is a view corresponding to FIG. 5 of another embodiment of the present invention. FIG. 7 is a plan view showing another embodiment of a symbol attached to the outer package according to the present invention. FIG. 8: is a top view which shows other embodiment of the symbol attached | subjected to the outer package which concerns on this invention. FIG. 9 is a plan view showing still another embodiment of a symbol attached to the outer package according to the present invention. FIG. 10 is a plan view showing still another embodiment of a symbol attached to the outer package according to the present invention. FIG. 11: is a top view which shows other embodiment of the symbol attached | subjected to the outer package which concerns on this invention. FIG. 12 is a plan view showing still another embodiment of a symbol attached to the outer package according to the present invention. FIG. 13: is a top view which shows other embodiment of the symbol attached | subjected to the outer package which concerns on this invention. FIG. 14 is a plan view showing still another embodiment of a symbol attached to the outer package according to the present invention.

  The present invention will be described below based on preferred embodiments with reference to the drawings. 1 to 4 show a basic configuration of a diaper 1 which is an embodiment of a pants-type disposable diaper of the present invention. The diaper 1 includes an abdominal side A disposed on the abdomen side of the wearer in a worn state, a back side C disposed on the back side, and a crotch part positioned between them and disposed on the crotch part of the wearer. B and a vertical direction X and a horizontal direction Y orthogonal thereto. The longitudinal direction X of the diaper 1 is a direction that extends between the abdominal part A and the back part C via the crotch part B, and coincides with the longitudinal direction of the absorbent main body 2. The crotch portion B is a region in which concave openings (leg edge portions 10 and 10) for forming leg openings LH and LH are formed on both side edge portions along the longitudinal direction X of the outer package 3.

  The diaper 1 includes an absorbent main body 2 and an outer package 3 that is disposed on the non-skin facing surface side of the absorbent main body 2 and fixes the absorbent main body 2. The outer package 3 forms the outer shape of the diaper 1 in the unfolded and extended state of the diaper 1 as shown in FIG. 2, and the peripheral edge of the outer package 3 forms the outline of the diaper 1 in that state. The “expanded and extended state” of the diaper 1 means that the diaper 1 is separated by a side seal portion to be in an expanded state, and the expanded state of the diaper 1 is extended by the elastic member of each part to eliminate the influence of the elastic member. In this state, it is expanded until it becomes the same size as when expanded in a flat shape. In the present specification, the skin facing surface is a surface (side closer to the wearer's skin) that faces the wearer's skin in the wearing state in the diaper 1 and its constituent members (for example, the outer package 3). The facing surface is a surface (a side farther from the skin than the skin facing surface) directed to the opposite side of the skin side of the wearer in the wearing state in the diaper 1 and its constituent members.

  The absorptive main body 2 has a rectangular shape in plan view as shown in FIG. 2, and the longitudinal direction of the absorbent main body 2 is aligned with the longitudinal direction X of the diaper 1 in the unfolded and extended state, and is bonded to the central portion of the outer envelope 3. It is joined by the agent. The absorbent main body 2 includes a liquid-permeable surface sheet 21 that forms a skin-facing surface, a liquid-impermeable or liquid-permeable or water-repellent back sheet 22 that forms a non-skin-facing surface, and both sheets 21 and 22. It has a liquid-retaining absorber 23 interposed between them, and these are integrated by a known joining means such as an adhesive. As the top sheet 21 and the back sheet 22, various types conventionally used for this type of absorbent article can be used without particular limitation. For example, various nonwoven fabrics or apertured films can be used as the top sheet 2, and a resin film, a laminate of a resin film and a nonwoven fabric, or the like can be used as the back sheet 3. As the absorbent body 23, for example, an absorbent core containing at least one kind of water-absorbing polymer particles and fiber materials such as pulp fibers can be used, and the absorbent core has a core made of paper, nonwoven fabric or the like on the surface. It may be covered with a wrap sheet.

  On the left and right sides along the longitudinal direction X of the skin facing surface of the absorbent main body 2, as shown in FIG. 2, side cuffs 24, 24 made of a liquid-resistant or water-repellent and breathable sheet material are provided. Is provided. In the vicinity of the free end of each side cuff 24, one or more thread-like side cuff elastic members 25 are arranged in an extended state. Each side cuff 24 stands up when the side cuff elastic member 25 arranged in the stretched state contracts in the wearing state of the diaper 1 and prevents the liquid from flowing out to the side.

  As shown in FIG. 2, the outer cover 3 has a pair of leg edges 10, 10 whose both side edges along the longitudinal direction X are curved inwardly in the crotch B to form an inward arc shape. When viewed from above, the central region in the vertical direction X has an hourglass shape that is bound inward in the horizontal direction Y. The outer envelope 3 has both side edges A1 and A2 along the longitudinal direction X in the ventral side A and both side edges C1 and C2 along the longitudinal direction X in the back side C. The adhesive, heat seal, and ultrasonic seal As shown in FIG. 1, a pair of side seal portions S and S are formed in the diaper 1, and the waist opening WH and the pair of leg openings are joined together. Portions LH and LH are formed.

  As shown in FIGS. 3 and 4, the outer package 3 includes a laminated body of an outer layer sheet 31 and an inner layer sheet 32. In the wearing state of the diaper 1, the outer layer sheet 31 is located on the side far from the wearer's body, forms a non-skin facing surface (outer surface) of the diaper 1, and the inner layer sheet 32 is located on the side closer to the wearer's body. And the skin opposing surface (inner surface) of the diaper 1 is formed. The outer layer sheet 31 and the inner layer sheet 32 are adjacent to each other in the thickness direction. The outer layer sheet 31 and the inner layer sheet 32 are joined by an adhesive at a predetermined site. In addition to the same shape and the same size as the inner layer sheet 32, the outer layer sheet 31 is further outward from the end in the longitudinal direction X on the ventral side A side of the inner layer sheet 32 when the sheets 31, 32 are laminated. And a dorsal extension part 31E extending outward from the end in the longitudinal direction X on the dorsal side C side of the inner layer sheet 32. As shown in FIG. 2, the extending portions 31 </ b> E and 31 </ b> E of the outer layer sheet 31 respectively cover the inner layer sheet 32 so as to cover both ends in the longitudinal direction X of the absorbent main body 2 arranged and fixed on the inner layer sheet 32. Folded to the side and fixed to the other constituent members (inner layer sheet 32, absorbent main body 2, side cuffs 24) of the diaper 1 facing both the extending portions 31E, 31E by an adhesive. As the outer layer sheet 31 and the inner layer sheet 32, various types of conventionally used outer packaging bodies can be used in this type of absorbent article without any particular limitation. For example, the ground color by various manufacturing methods is white. Nonwoven fabrics (spunbond nonwoven fabric, air-through nonwoven fabric, needle punched nonwoven fabric, etc.) can be mentioned.

  As shown in FIG. 2, one or a plurality of waist elastic members 11 for forming waist gathers are arranged in a stretched state in the lateral direction Y in the waist portion D in each of the ventral portion A and the back portion C. Yes. The waist elastic member 11 extends over substantially the entire length in the lateral direction Y of the waist portion D. The waist part D is a part located around the waist of the wearer, and is generally the entire length in the longitudinal direction X of the diaper 1 from the end in the longitudinal direction X on the abdomen side A side or the back side part C side of the diaper 1. It is an area up to a length of 1 to 15%. Thereby, an annular waist gather substantially continuous over the entire circumference is formed in the waist opening WH (see FIG. 1). Further, one or a plurality of leg elastic members 12 for forming leg gathers are arranged in an extended state on both side portions (leg edge portions) 10, 10 along the longitudinal direction X of the crotch portion B. As a result, an annular leg gather substantially continuous over the entire circumference is formed on the leg edge 10 which is the opening edge of each of the pair of leg openings LH and LH (see FIG. 1). The leg elastic member 12 is arranged in an extended state so that elastic stretchability is expressed at a portion outside in the lateral direction Y from at least both side edges along the longitudinal direction X of the absorbent main body 2, and absorbency At least the central part in the lateral direction Y of the part where the main body 2 exists is not arranged in a state where the elastic stretchability is expressed. Although not shown, one or a plurality of waistline gathers are formed in the waistline portion E located between the waist portion D and the crotch portion B in each of the ventral side portion A and the backside portion C. The waist elastic member for use may be arranged in an extended state in the lateral direction Y. The waist elastic member 11, the leg elastic member 12, and the waist elastic member are sandwiched and fixed between the outer layer sheet 31 and the inner layer sheet 32 constituting the outer package 3 by a bonding means such as an adhesive.

  As shown in FIGS. 1 to 3, the outer package 3 is provided with a design 40 including a light-colored portion having a relatively light color and a dark-colored portion having a relatively dark color. In the pattern 40 in the figure, three types of parts having different color densities are mixed, and the lightest part (a non-colored part 41 described later) is a light color part and the darkest part (described later). The intersection 45) of the first straight line 43 and the second straight line 44 is a dark color part. Further, a portion having an intermediate color density, that is, a portion other than the intersecting portion 45 (non-intersecting portion) in the first straight line 43 or the second straight line 44, is a dark color portion or a dark color portion depending on a portion to be compared with these. Can also be. Both the straight lines 43 and 44 and the intersecting portion 45 are colored portions 42 in which printing is performed on a sheet (inner layer sheet 32) constituting the outer package 3.

  The design 40 is attached so as to be visually recognized from at least the skin facing surface side of the outer package 3, that is, from the inside of the diaper 1 (see FIGS. 2 and 3). The design 40 in this embodiment is attached not only to the skin facing surface side of the outer package 3 but also from the non-skin facing surface side of the outer packaging 3, that is, from the outside of the diaper 1 (see FIG. 1). ).

  As shown in FIGS. 2 and 3, the design 40 includes a first straight line 43 extending in one direction, specifically the longitudinal direction X (longitudinal direction of the absorbent main body 2), and a direction intersecting the one direction, specifically Specifically, it includes a plurality of second straight lines 44 extending in the lateral direction Y (the width direction of the absorbent main body 2), and a plurality of intersecting portions 45 of both straight lines 43, 44, which is a so-called lattice pattern. The plurality of first straight lines 43 are arranged at equal intervals in the horizontal direction Y, and the plurality of second straight lines 44 are arranged at equal intervals in the vertical direction X. Both straight lines 43 and 44 have a constant width (length in a direction perpendicular to the length direction) over the entire length in the length direction, and the widths of both straight lines 43 and 44 are the same. Each intersection 45 has a square shape in plan view, and has four corners 45C (see FIG. 5).

  The pattern 40 is formed by printing both straight lines 43 and 44 on the outer package 3, more specifically, the non-skin facing surface 32 b of the inner layer sheet 32 constituting the outer package 3. Both straight lines 43 and 44 and their intersecting portions 45 are colored portions 42 to which printing ink is attached, and other portions of the outer package 3, that is, a rectangular shape in plan view surrounded by both straight lines 43 and 44. Is a non-colored portion 41 (light color portion), and is a portion where the ground color of the outer packaging 3 (the non-skin facing surface 32b of the inner layer sheet 32) remains as it is. In this embodiment, the sheet | seat which comprises the outer package 3 is a nonwoven fabric, and the ground color of the outer package 3 (non-skin opposing surface 32b of the inner layer sheet | seat 32) is white. Therefore, in this embodiment, the non-colored part 41 (light color part) is white. The first straight line 43 and the second straight line 44 have the same color (hue, brightness, and saturation). On the other hand, the intersection 45 of the straight lines 43 and 44 is a portion where printing for forming the straight lines 43 and 44 is performed in an overlapping manner, and therefore, the most adhering amount of printing ink among the constituent elements of the pattern 40. For this reason, the portions other than the intersecting portion 45 (non-intersecting portions) in both straight lines 43 and 44 have the same hue but different brightness and / or saturation.

  In the present embodiment, as shown in FIGS. 1 to 3, the design 40 is attached to the entire surface of the outer package 3, more specifically, the entire non-skin facing surface 32 b of the inner layer sheet 32. That is, in this embodiment, when the outer packaging 3 is viewed from the skin facing surface side as shown in FIG. 2, it can be visually recognized that the design 40 is attached to the entire area of the skin facing surface. As shown in the figure, when the design 40 is visually recognized from the non-skin facing surface side of the outer package 3, it can be visually confirmed that the design 40 is also applied to the entire non-skin facing surface. . Since the concealing effect of the absorbent main body 2 is enhanced when the design 40 is applied to the entire surface of the outer packaging 3, compared to the case where the design 40 is applied only to a part of the outer packaging 3, When the diaper 1 is visually observed from the outside, the absorbent main body 2 which is not a member of ordinary underwear and is unique to this type of absorbent article is inconspicuous, and the appearance of the diaper 1 seems to be underwear and is good. Become.

  In general, this type of diaper outer package is required to have air permeability. However, when a pattern is printed on the entire surface of the outer package as shown in FIGS. Can cause However, the pattern 40 shown in FIGS. 1 to 3 is a so-called lattice pattern, and the non-colored portion 41 in which the printing ink is not attached and the air permeability inherent to the outer package is secured is balanced on the entire surface of the outer package. Because of the good arrangement, the concern is eliminated in the diaper 1. The ratio of the non-colored portion 41 occupying one surface of the outer package 3 [(total area of non-colored portion / area of one surface of the outer package) × 100] is from the viewpoint of the balance between the effect of the pattern 40 and air permeability described later. , Preferably 10% or more, more preferably 20% or more, and preferably 50% or less, more preferably 40% or less, more specifically preferably 10 to 50%, more preferably 20 to 40%. is there.

  In the present embodiment, the pattern 40 is attached to the non-skin facing surface 32b of the inner layer sheet 32 constituting the outer package 3, and the skin facing surface 32a of the inner layer sheet 32 that can be in direct contact with the wearer's skin, It is not attached to the outer layer sheet 31 constituting the outer surface of the diaper 1. Since the non-skin facing surface 32b of the inner layer sheet 32 is the facing surface of the outer layer sheet 31 and is not exposed to the outside, the printing ink constituting the pattern 40 is worn by attaching the design 40 to the non-skin facing surface 32b. The inconvenience of shifting to the person's skin and clothing and contaminating them, so-called color transfer, is effectively prevented.

  One of the main features of the diaper 1 of the present embodiment is that the configuration of the pattern 40 is devised in relation to the absorbent main body 2. FIG. 5 is a diagram for explaining the idea of the design 40, and the illustration of the configuration of each part of the diaper 1 is partially omitted. As shown in FIG. 5, in the diaper 1, in the vicinity of both side edges 2S, 2S along the longitudinal direction X of the absorbent main body 2, a non-colored portion 41 that is a light-colored portion and a colored portion 42 that is a dark-colored portion (first And the non-colored portion 41 and the colored portion 42 adjacent to each other in the vertical direction X along the extending direction of the side edge 2S. When the lengths (lengths in the vertical direction) are compared, the vertical length 42L of the colored portion 42 is longer than the vertical length 41L of the non-colored portion 41 (42L> 41L). Here, the vicinity of the side edge 2S of the absorbent main body 2 means a region within 30 mm outward from the side edge 2S in the lateral direction Y. The magnitude relationship between the lengths in the longitudinal direction of 42L> 41L may be established in any part of the vicinity of the side edge 2S of the absorbent main body 2 and may not be established in the entire vicinity of the side edge 2S. Although it is good, from the viewpoint of more surely exhibiting the effects described later, as shown in FIG. 5, substantially in the vicinity of the side edge 2S, preferably in a region of 50% or more of the total length of the side edge 2S, It is preferable that the relationship 42L> 41L is established.

  When the design 40 attached to the outer package 3 is configured as shown in FIG. 5 in the vicinity of the side edge 2S of the absorbent main body 2, the inside of the diaper 1 (the skin facing surface side of the outer package 3) is visually observed. In this case, since the presence of the side edge 2S of the absorbent main body 2 that functions as a boundary line between the absorbent main body 2 and the outer envelope 3 in the background becomes prominent, the absorbent main body 2 and the outer envelope 3 It becomes easy to distinguish. Therefore, according to the diaper 1, it is easy to confirm whether the absorbent main body 2 is disposed at an appropriate position with respect to the wearer's body (urination portion) or to adjust the position of the absorbent main body 2 when worn. Moreover, when using an absorptive pad, the alignment and position adjustment can be easily performed, and as a result, the leakage of excrement can be effectively prevented. Especially for elderly people, it was often difficult to distinguish the absorbent main body and the outer packaging at a glance in a conventional disposable diaper which is entirely white, but by attaching a design such as design 40 to the outer packaging. A pants-type disposable diaper that is easy to use for the elderly can be obtained.

  From the viewpoint of more surely exhibiting the effect of the design 40 as described above, the non-colored portion 41 (light colored portion) and the colored portion 42 adjacent to each other in the vertical direction X in the vicinity of the side edge 2S of the absorbent main body 2. The difference (42L-41L) between the longitudinal length 42L of the colored portion 42 and the longitudinal length 41L of the non-colored portion 41 is preferably 5 mm or more and preferably 100 mm or less. is there.

  From the same viewpoint, in the vicinity of the side edge 2S of the absorbent main body 2, the length 42L (see FIG. 5) of the colored portion 42 (dark color portion) is preferably 10 mm or more, more preferably 15 mm or more, And preferably it is 100 mm or less, More preferably, it is 90 mm or less, More specifically, Preferably it is 10-100 mm, More preferably, it is 15-90 mm. Further, in the vicinity of the side edge 2S of the absorbent main body 2, the length 41L (see FIG. 5) of the non-colored portion 41 (light colored portion) is preferably 8 mm or more, more preferably 10 mm or more, and preferably It is 90 mm or less, More preferably, it is 85 mm or less, More specifically, Preferably it is 8-90 mm, More preferably, it is 10-85 mm.

  As shown in FIG. 5, in the vicinity of the side edge 2 </ b> S of the absorbent main body 2 in the design 40, the corners 45 </ b> C of the plurality of intersecting portions 45 are arranged along the side edge 2 </ b> S. In this way, in the vicinity of the side edge 2S of the absorbent main body 2, preferably within a region within 30 mm outward from the side edge 2S in the lateral direction Y, the plurality of corners 45C extend in the longitudinal direction X along the side edge 2S. When arranged in a straight line, for example, when the absorbent pad is placed on the absorbent main body 2, the absorbent pad is arranged using the row of the plurality of corner portions 45C (side edges of the first straight line 43) as marks. It becomes possible to arrange | position in an appropriate position, and alignment of an absorptive pad becomes still easier. In the design 40, as shown in FIG. 5, since the row | line | column by the some corner | angular part 45C is extended over the full length of this side edge 2S along the side edge 2S of the absorptive main body 2, the position of an absorbent pad Matching is particularly easy. Moreover, since the corner | angular part 45C in the pattern 40 is formed when two straight lines 43 and 43 cross | intersect, even if the outer package 3 is expanded and contracted by the said various gathers, it is excellent in visual visibility.

  Moreover, as shown in FIG. 5, in the design arranged near the side edge 2S of the absorbent main body 2, one non-colored portion 41 (light colored portion) and one colored portion adjacent to each other in the vertical direction X When 42 (dark color portion) is defined as a basic symbol element 46, a plurality of basic symbol elements 46 are arranged along the side edge 2S. As described above, when there is a regular pattern made up of a repeated pattern of the basic symbol elements 46 in the vicinity of the side edge 2S of the absorbent main body 2, the presence of the side edge 2S is more conspicuous in comparison with the pattern. Therefore, the position confirmation of the absorptive main body 2 by visual observation becomes much easier. When the absorbent pad is placed on the absorbent main body 2, each of the basic symbol elements 46 arranged along the side edges of the absorbent main body 2 or each basic symbol element 46 is configured. Since each one of the non-colored portion 41 (light color portion) and the colored portion 42 (dark color portion) to function can function as a scale indicating the position and size of the absorbent main body 2, align the absorbent pad. This can be done even more easily. The function as a scale of this basic symbol element is mainly due to the presence of the second straight line 44 extending in the lateral direction Y and orthogonal to the side edge 2S of the absorbent main body 2, and the symbol attached to the outer package is: It can be said that it is preferable to include a plurality of “straight lines orthogonal to the side edges in the longitudinal direction of the absorbent main body” such as the second straight line 44.

  The number of the basic symbol elements 46 located in the vicinity of the side edge 2S of the absorbent main body 2 is preferably 10 from the viewpoint of more surely exhibiting the effect by the repeated pattern of the basic symbol elements 46. It is at least 15 and preferably at most 15. Here, “the number of basic design elements located near the side edge of the absorbent main body” is the number of basic design elements that are entirely along the side edge, and only a part is along the side edge. Do not include basic design elements. For example, in the form shown in FIG. 1, the number of basic symbol elements 46 located in the vicinity of the side edge 2S of the absorbent main body 2 is twelve.

  Hereinafter, other embodiments of the present invention will be described with reference to FIGS. In other embodiments to be described later, components different from those of the embodiment shown in FIG. 1 to FIG. 5 will be mainly described, and the same components will be denoted by the same reference numerals and description thereof will be omitted. The description of the above embodiment is applied as appropriate to components that are not particularly described.

  In the pattern 40A shown in FIG. 6, the first straight line 43 and the second straight line 44 extend in directions intersecting both the vertical direction X and the horizontal direction Y, respectively. The pattern 40A is a so-called diagonal lattice pattern. In the embodiment shown in FIG. 6, in the vicinity of the side edge 2 </ b> S of the absorbent main body 2, a non-colored portion 41 that is a light-colored portion and a colored portion 42 that is a dark-colored portion, that is, an intersecting portion 45 and adjacent thereto. A combination with a portion other than the intersection 45 in the first straight line 43 or the second straight line 44 is alternately arranged along the side edge 2S, and the non-colored portion 41 and the colored portion 42 adjacent to each other in the vertical direction X. When comparing the length (longitudinal length) along the extending direction of the side edge 2S, the longitudinal length 42L of the colored portion 42 is longer than the longitudinal length 41L of the non-colored portion 41 ( 42L> 41L). Further, in the vicinity of one side edge 2S of the absorbent main body 2, corners 45C of the plurality of intersecting portions 45 are arranged along the side edge 2S. An effect similar to that of the above-described embodiment is also achieved by a pants-type disposable diaper in which the design 40A is attached to the outer package.

  The pattern 40B shown in FIG. 7 includes a plurality of two types of first straight lines 431 and 432 extending in the vertical direction X and a single type of second straight line 44 extending in the horizontal direction Y, respectively. A plurality of intersecting portions 451 with the straight lines 44 and a plurality of intersecting portions 452 with the first straight lines 432 and the second straight lines 44 are included, which is a kind of so-called lattice pattern. These straight lines 431, 432, 44 and their intersecting portions 451, 452 are all colored portions 42. In the pattern 40B, the lightest color portion (light color portion) is the non-colored portion 41, and the darkest color portion (dark color portion) is the intersections 451 and 452, and the portions having intermediate color densities are These are portions (non-intersecting portions) other than the intersecting portions 451 and 452 in the straight lines 431, 432 and 44, respectively. In FIG. 7, reference numeral 431 </ b> P indicates a non-intersecting portion on the first straight line 431. The first straight line 431 is a relatively wide straight line, the first straight line 432 is a relatively narrow straight line, and the straight lines 431 and 432 are alternately arranged at a predetermined interval in the lateral direction Y. . A dotted straight line 2S in FIG. 7 indicates the position of one side edge along the longitudinal direction of the absorbent main body (not shown). In the embodiment shown in FIG. 7, in the vicinity of the side edge 2S of the absorbent main body, non-intersecting portions 431P (light color portions) and intersecting portions 451 (dark color portions) are alternately arranged along the side edges 2S. In addition, when the non-intersecting portion 431P and the intersecting portion 451 adjacent to each other in the longitudinal direction X are compared in length (length in the longitudinal direction) along the direction in which the side edge 2S extends, the longitudinal length 451L of the intersecting portion 451 is compared. Is longer than the length 431PL in the vertical direction of the non-intersecting portion 431P (451L> 431PL). In the pattern 40B, two kinds of colored portions 42 having different color densities, that is, a non-intersecting portion 431P and an intersecting portion are located in the vicinity of the side edge 2S of the absorbent main body 2 and along the side edge 2S. Since the non-colored portion 41 is not located near the side edge 2S, the non-intersecting portion 431P having a relatively low color density of the two types of colored portions 42 is a light color portion. Further, in the vicinity of the side edge 2S of the absorbent main body 2, the corner portions 45C of the plurality of intersecting portions 451 are arranged along the side edge 2S. An effect similar to that of the above-described embodiment is also achieved by a pants-type disposable diaper in which the design 40B is attached to the outer package.

  The design 40C shown in FIG. 8 includes two types of first straight lines 431 and 432 extending in a direction intersecting both the vertical direction X and the horizontal direction Y, and the first straight lines 431 and 432 and the vertical direction X and the horizontal direction Y, respectively. And a plurality of one type of second straight lines 44 extending in the direction intersecting with each other, a crossing portion 451 between the first straight line 431 and the second straight line 44, and a crossing portion 452 between the first straight line 432 and the second straight line 44. Is a kind of so-called diagonal lattice pattern. These straight lines 431, 432, 44 and their intersecting portions 451, 452 are all colored portions 42. In the pattern 40C, the lightest color portion (light color portion) is the non-colored portion 41, and the darkest color portion (dark color portion) is the intersecting portions 451 and 452, and the portions having intermediate color densities are These are portions (non-intersecting portions) other than the intersecting portions 451 and 452 in the straight lines 431, 432 and 44, respectively. The first straight line 431 is a relatively wide straight line, the first straight line 432 is a relatively narrow straight line, and the straight lines 431 and 432 are alternately arranged at a predetermined interval in the lateral direction Y. . In the embodiment shown in FIG. 8, in the vicinity of the side edge 2S of the absorbent main body, the non-colored portion 41 (light color portion) and the colored portion 42 (dark color portion) are alternately arranged along the side edge 2S. And when the length (length in the vertical direction) along the direction in which the side edge 2S extends is compared between the non-colored portion 41 and the colored portion 42 adjacent to each other in the vertical direction X, the vertical length 42L of the colored portion 42 is compared. Is longer than the longitudinal length 41L of the non-colored portion 41 (42L> 41L). Further, in the vicinity of the side edge 2S of the absorbent main body, corners 45C of the plurality of intersecting portions 451 and 452 are arranged along the side edge 2S. An effect similar to that of the above-described embodiment is also achieved by a pants-type disposable diaper in which the design 40C is attached to the outer package.

  The design 40D shown in FIG. 9 includes: 1) the first straight line 43 and the second straight line 44 are each provided with a discontinuous portion made of a non-colored portion 41 at predetermined intervals in the length direction; , 44 are discontinuous lines, and 2) the intersecting portion 45 of both straight lines 43, 44 is not overprinted, and the portion other than the intersecting portion 45 in both straight lines 43, 44 (non-intersecting) 5) is different from the pattern 40 shown in FIG. The pattern 40D is a so-called discontinuous lattice pattern. In the embodiment shown in FIG. 9, in the vicinity of the side edge 2S of the absorbent main body, the non-colored portion 41 (light color portion) and the colored portion 42 (dark color portion) are alternately arranged along the side edge 2S. And when the length (length in the vertical direction) along the direction in which the side edge 2S extends is compared between the non-colored portion 41 and the colored portion 42 adjacent to each other in the vertical direction X, the vertical length 42L of the colored portion 42 is compared. Is longer than the longitudinal length 41L of the non-colored portion 41 (42L> 41L). Further, in the vicinity of the side edge 2S of the absorbent main body, the corner portions 45C of the plurality of intersecting portions 45 are arranged along the side edge 2S. An effect similar to that of the above-described embodiment is also achieved by a pants-type disposable diaper having a design 40D attached to the outer package.

  The design 40E shown in FIG. 10 is different from the design 40 shown in FIG. 5 in that the non-colored portion 41 and the colored portion 42 are inverted. That is, in the design 40E, the first straight line 43 extending in the vertical direction X, the second straight line 44 extending in the horizontal direction Y, and the intersection 45 thereof are not printed, and the outer package 3 (inner layer sheet) 32 is a non-colored portion 41 (light color portion) in which the ground color of the non-skin facing surface 32b) remains as it is, and other portions in the outer packaging 3 are colored portions 42 (dark color portions) on which printing has been performed. It is. The pattern 40E is a so-called white line lattice pattern. In the embodiment shown in FIG. 10, in the vicinity of the side edge 2S of the absorbent main body, the non-colored portion 41 (light color portion) and the colored portion 42 (dark color portion) are alternately arranged along the side edge 2S. And when the length (length in the vertical direction) along the direction in which the side edge 2S extends is compared between the non-colored portion 41 and the colored portion 42 adjacent to each other in the vertical direction X, the vertical length 42L of the colored portion 42 is compared. Is longer than the longitudinal length 41L of the non-colored portion 41 (42L> 41L). Further, in the vicinity of the side edge 2S of the absorbent main body, the corner portions 45C of the plurality of intersecting portions 45 are arranged along the side edge 2S. An effect similar to that of the above-described embodiment can also be obtained by a pants-type disposable diaper in which the design 40E is attached to the outer package.

  The pattern 40F shown in FIG. 11 is a discontinuity made up of the colored portion 42 (dark color portion) at predetermined intervals in the length direction of the first straight line 43 and the second straight line 44 that are the non-colored portion 41 (light color portion). 10 is different from the symbol 40E shown in FIG. 10 in that both straight lines 43 and 44 are discontinuous lines. The pattern 40F is a so-called discontinuous white line lattice pattern. In the embodiment shown in FIG. 11, in the vicinity of the side edge 2S of the absorbent main body, the non-colored portion 41 (light color portion) and the colored portion 42 (dark color portion) are alternately arranged along the side edge 2S. And when the length (length in the vertical direction) along the direction in which the side edge 2S extends is compared between the non-colored portion 41 and the colored portion 42 adjacent to each other in the vertical direction X, the vertical length 42L of the colored portion 42 is compared. Is longer than the longitudinal length 41L of the non-colored portion 41 (42L> 41L). Further, in the vicinity of the side edge 2S of the absorbent main body, corners 45C of a plurality of intersecting portions 45 (non-colored portions 41) are arranged along the side edge 2S. An effect similar to that of the above-described embodiment is also achieved by a pants-type disposable diaper in which the design 40F is attached to the outer package.

  The design 40G shown in FIG. 12 is that the first straight line 43 and the second straight line 44, which are non-colored portions 41 (light colored portions), extend in a direction intersecting both the vertical direction X and the horizontal direction Y. This is different from the pattern 40E shown in FIG. The pattern 40G is a so-called diagonal white line lattice pattern. In the embodiment shown in FIG. 12, in the vicinity of the side edge 2S of the absorbent main body, the non-colored portion 41 (light color portion) and the colored portion 42 (dark color portion) are alternately arranged along the side edge 2S. And when the length (length in the vertical direction) along the direction in which the side edge 2S extends is compared between the non-colored portion 41 and the colored portion 42 adjacent to each other in the vertical direction X, the vertical length 42L of the colored portion 42 is compared. Is longer than the longitudinal length 41L of the non-colored portion 41 (42L> 41L). Further, in the vicinity of the side edge 2S of the absorbent main body, corners 45C of a plurality of intersecting portions 45 (non-colored portions 41) are arranged along the side edge 2S. An effect similar to that of the above-described embodiment is also achieved by a pants-type disposable diaper having a design 40G attached to the outer package.

  The pattern 40H shown in FIG. 13 has a floral pattern 421 formed of a colored portion printed on a part (central portion) of each non-colored portion 41 (light color portion) and each intersection 45 (dark color portion). 5 is different from the pattern 40 shown in FIG. 5 in that a floral pattern 411 composed of a non-colored portion is attached to a part (center portion) of the pattern. In the embodiment shown in FIG. 13, in the vicinity of the side edge 2 </ b> S of the absorbent main body, a portion other than the intersection 45 in the non-colored portion 41 (light color portion) and the second straight line 44 that is the colored portion 42 (dark color portion). ) Are alternately arranged along the side edge 2S, and the non-colored portion 41 and the colored portion 42 adjacent to each other in the vertical direction X have a length (length in the vertical direction) along the direction in which the side edge 2S extends. When compared, the longitudinal length 42L of the colored portion 42 is longer than the longitudinal length 41L of the non-colored portion 41 (42L> 41L). Further, in the vicinity of the side edge 2S of the absorbent main body, the corner portions 45C of the plurality of intersecting portions 45 are arranged along the side edge 2S. An effect similar to that of the above-described embodiment is also achieved by a pants-type disposable diaper in which the design 40H is attached to the outer package.

  A pattern 40I shown in FIG. 14 includes a linear non-colored portion 41 (light color portion) extending in the horizontal direction Y and a linear colored portion 42 (dark color portion) extending in the horizontal direction Y, and these are the vertical direction. Alternating with X. In the pattern 40I, the non-colored portion 41 is a relatively narrow straight line, and the colored portion 42 is a relatively wide straight line. In the embodiment shown in FIG. 14, in the vicinity of the side edge 2S of the absorbent main body, the non-colored parts 41 and the colored parts 42 are alternately arranged along the side edge 2S and are adjacent to each other in the longitudinal direction X. When the length (longitudinal length) along the extending direction of the side edge 2S is compared between the colored portion 42 and the colored portion 42, the vertical length 42L of the colored portion 42 is longer than the vertical length of the non-colored portion 41. The direction length is longer than 41L (42L> 41L). An effect similar to that of the above-described embodiment is also achieved by a pants-type disposable diaper having a design 40I attached to the outer package.

  As mentioned above, although embodiment of this invention was described, this invention is not restrict | limited to the said embodiment, It can change suitably. All the parts of only the one embodiment described above can be used together as appropriate. The following additional notes are disclosed with respect to the embodiment of the present invention described above.

<1>
The ventral portion disposed on the abdomen side of the wearer, the dorsal side portion disposed on the dorsal side, and a crotch portion positioned therebetween, and the dorsal side from the abdominal side portion through the crotch portion An absorbent body having a longitudinal direction extending to the portion and a transverse direction perpendicular thereto, and an outer package disposed on the non-skin-facing surface side of the absorbent body and fixing the absorbent body A pair of side seal portions, a waist opening portion, and a pair of leg openings formed by joining both side edges along the longitudinal direction of the outer envelope in each of the abdominal side portion and the back side portion. Type disposable diaper,
The outer package is provided with a pattern including a lighter-colored portion having a relatively light color and a darker-colored portion having a relatively dark color so as to be visible at least from the skin facing surface side of the outer package. ,
In the vicinity of at least one side edge of both side edges along the longitudinal direction of the absorbent main body, the light color part and the dark color part are alternately arranged along the one side edge, and adjacent to each other. A pants-type disposable diaper in which the dark color portion is longer in length than the light color portion when the length along the extending direction of the one side edge is compared between the light color portion and the dark color portion .

<2>
The symbol includes a plurality of first straight lines extending in one direction and a plurality of second straight lines extending in a direction intersecting the one direction, and includes a plurality of intersections of both straight lines,
The pants-type disposable diaper according to <1>, wherein corners of each of the plurality of intersecting portions are arranged along the side edge in the vicinity of the side edge of the absorbent main body.
<3>
The pants-type disposable diaper according to <2>, wherein the first straight line extends in the vertical direction and the second straight line extends in the horizontal direction.
<4>
The said 1st straight line and the said 2nd straight line are the underpants type disposable diapers as described in said <2> extended in the direction which cross | intersects both the vertical direction and a horizontal direction, respectively.

<5>
In the design arranged in the vicinity of the side edge of the absorbent main body, when the light color portion and the dark color portion adjacent in the vertical direction are defined as basic design elements, the basic design elements are along the side edges. The pants according to any one of <1> to <4>, wherein the number of the basic symbol elements positioned in the vicinity of the side edge is 10 or more and 15 or less. Type disposable diaper.
<6>
The outer package includes an outer layer sheet positioned on the side far from the wearer's body and an inner layer sheet positioned on the side closer to the wearer's body, and the design is attached to the non-skin facing surface of the inner layer sheet. The underpants-type disposable diaper according to any one of <1> to <5>.
<7>
The pants-type disposable diaper according to any one of <1> to <6>, wherein the design is attached to the entire surface of the outer package.

<8>
The pattern is formed by printing on the outer package, the dark color portion is a colored portion to which printing ink is attached, and the light color portion is non-colored to which no printing ink is attached. The underpants type disposable diaper as described in any one of said <1>-<7> which is a part.
<9>
The ratio of the non-colored portion occupying one surface of the outer package [(total area of non-colored portion / area of one surface of the outer package) × 100] is preferably 10% or more, more preferably 20% or more, and preferably The pants-type disposable diaper according to <8>, wherein is 50% or less, more preferably 40% or less, more specifically, preferably 10 to 50%, and more preferably 20 to 40%.
<10>
In the region of 50% or more of the total length of the side edge along the longitudinal direction of the absorbent main body, the dark portion (colored portion) is longer in the longitudinal direction than the light color portion (non-colored portion). The underpants-type disposable diaper according to any one of 1> to <9>.
<11>
<1> to <1> to above in which the dark color portion (colored portion) is longer in the longitudinal direction than the light color portion (non-colored portion) in the entire region near the side edge along the vertical direction of the absorbent main body. The underpants type disposable diaper as described in any one of <9>.

<12>
In the light color portion (non-colored portion) and the dark color portion (colored portion) adjacent in the vertical direction in the vicinity of the side edge along the vertical direction of the absorbent main body, the length of the dark color portion in the vertical direction and the light color The underpants type disposable diaper as described in any one of said <1>-<11> whose difference with the vertical direction length of a part is 5 mm or more and 100 mm or less.
<13>
In the vicinity of the side edge along the longitudinal direction of the absorbent main body, the length in the longitudinal direction of the dark color portion (colored portion) is preferably 10 mm or more, more preferably 15 mm or more, and preferably 100 mm or less, more preferably. The pants-type disposable diaper according to any one of the above <1> to <12>, which is 90 mm or less, more specifically, preferably 10 to 100 mm, and more preferably 15 to 90 mm.
<14>
In the vicinity of the side edge along the longitudinal direction of the absorbent main body, the longitudinal length of the light-colored portion (non-colored portion) is preferably 8 mm or more, more preferably 10 mm or more, and preferably 90 mm or less, more preferably The pants-type disposable diaper according to any one of <1> to <13>, wherein is 85 mm or less, more specifically, preferably 8 to 90 mm, and more preferably 10 to 85 mm.

<15>
The pants-type disposable diaper according to any one of <1> to <14>, wherein the design is a lattice pattern.
<16>
The underpants-type disposable diaper according to any one of <1> to <14>, wherein the design is a diagonal lattice pattern.
<17>
The pants-type disposable diaper according to any one of <1> to <14>, wherein the design is a discontinuous lattice pattern.

1 Pants-type disposable diaper (absorbent article)
2 Absorbent body 21 Top sheet 22 Back sheet 23 Absorbent core 3 Outer package 31 Outer sheet 32 Inner sheet 32a Inner layer skin facing surface 32b Inner layer sheet non-skin facing surface 40, 40A, 40B, 40C, 40D, 40E, 40F, 40G, 40H, 40I Pattern 41 Non-colored part 411 Floral pattern (non-colored part)
42 Coloring part 421 Floral pattern (Coloring part)
43, 431, 432 First straight line 44 Second straight line 45, 451, 452 Intersection 45C between first straight line and second straight line Corner 46 at the intersection Basic element A Abdominal side B Crotch C Back side X Vertical direction Y Horizontal direction

Claims (7)

The ventral portion disposed on the abdomen side of the wearer, the dorsal side portion disposed on the dorsal side, and a crotch portion positioned therebetween, and the dorsal side from the abdominal side portion through the crotch portion An absorbent body having a longitudinal direction extending to the portion and a transverse direction perpendicular thereto, and an outer package disposed on the non-skin-facing surface side of the absorbent body and fixing the absorbent body A pair of side seal portions, a waist opening portion, and a pair of leg openings formed by joining both side edges along the longitudinal direction of the outer envelope in each of the abdominal side portion and the back side portion. Type disposable diaper,
The outer package is provided with a pattern including a lighter-colored portion having a relatively light color and a darker-colored portion having a relatively dark color so as to be visible at least from the skin facing surface side of the outer package. ,
In the vicinity of at least one side edge of both side edges along the longitudinal direction of the absorbent main body, the light color part and the dark color part are alternately arranged along the one side edge, and adjacent to each other. A pants-type disposable diaper in which the dark color portion is longer in length than the light color portion when the length along the extending direction of the one side edge is compared between the light color portion and the dark color portion . The symbol includes a plurality of first straight lines extending in one direction and a plurality of second straight lines extending in a direction intersecting the one direction, and includes a plurality of intersections of both straight lines,
The pants-type disposable diaper according to claim 1, wherein corners of each of the plurality of intersecting portions are arranged along the side edge in the vicinity of the side edge of the absorbent main body.   The pants-type disposable diaper according to claim 2, wherein the first straight line extends in the vertical direction and the second straight line extends in the horizontal direction.   The pants-type disposable diaper according to claim 2, wherein the first straight line and the second straight line extend in directions intersecting both the vertical direction and the horizontal direction, respectively.   In the design arranged in the vicinity of the side edge of the absorbent main body, when the light color portion and the dark color portion adjacent in the vertical direction are defined as basic design elements, the basic design elements are along the side edges. 5. The pants-type disposable diaper according to claim 1, wherein the number of the basic symbol elements located in the vicinity of the side edge is 10 or more and 15 or less. .   The outer package includes an outer layer sheet positioned on the side far from the wearer's body and an inner layer sheet positioned on the side closer to the wearer's body, and the design is attached to the non-skin facing surface of the inner layer sheet. The underpants type disposable diaper as described in any one of Claims 1-5.   The underpants type disposable diaper as described in any one of Claims 1-6 by which the said pattern is attached | subjected to the said outer package whole surface.

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