TWM486404U - Absorbent article - Google Patents

Abstract

An absorbent article 1A of the invention including an absorbent assembly 5 having a skin-facing sheet 2 disposed on a skin side of a wearer, a backsheet 3 disposed on an opposite side to the skin side, and an absorbent member 4 disposed between the sheets, the absorbent assembly 5 being oblong in a longitudinal direction, and being divided into a front portion A, a rear portion B, and a crotch portion C. The absorbent assembly 5 includes a pair of side flap portions 51 extending laterally outward from both lateral side edges of the absorbent member 4 from the front portion A to the rear portion B. A colored graphic 8 is printed on the backsheet 3 in the crotch portion C of the side flap portions 51. The side flap portions 51 are formed by joining the skin-facing sheet 2 and the backsheet 3 with hot-melt adhesives 9 in a net-like pattern in at least a region where the colored graphic 8 is printed. The colored graphic 8 is viewable through the skin-facing sheet 2.

Description

Absorbent article

This creation is about an absorbent article such as disposable diapers.

Absorbent articles such as disposable diapers and menstrual napkins are generally worn on the wearer's crotch due to the proper position of the lower part of the absorbent article, thereby exerting the original function of the absorbent article and sufficiently absorbing body fluids such as urine or preventing leakage. .

For example, Japanese Laid-Open Patent Publication No. 2005-523139 discloses a menstrual sanitary napkin which faces the layer in contact with the clothes in the entire outer peripheral region of the outer periphery of the absorbent core. Graphics are printed on the surface of the body to enhance design and reduce the melancholy mood of the user.

As a technique different from this, for example, Japanese Laid-Open Patent Publication No. 2008-54991 discloses a disposable diaper which is used to enhance visual recognition of an indicator which exhibits a visual change by contact with moisture. The inner surface side of the leakage preventing sheet in the range overlapping with the indicator is coated with a clearing agent containing a hot melt adhesive.

The present invention relates to an absorbent article comprising a vertically long absorbent body comprising a skin facing sheet disposed on the skin side of the wearer when worn, and disposed on the side opposite to the skin side of the wearer. a liquid-impermeable back sheet and an absorber disposed between the sheets, and is divided into a belly side portion on the ventral side of the wearer, a back side portion on the back side, and a ventral side The lower part between the part and the back side. Above absorption The body includes a pair of side flap portions extending from the front side portion to the back side portion and extending laterally outward from both side edges of the absorbent body along the longitudinal direction. A coloring pattern is printed on the back sheet in the lower portion of each of the pair of side flap portions.

Each of the pair of side flap portions is formed by joining the skin facing sheet and the back sheet at least in a region where the colored pattern is printed by a hot-melt adhesive of a mesh pattern. The colored pattern can be visually recognized through the skin facing sheet.

1A‧‧‧Disposable diapers

1B‧‧‧Disposable diapers

2‧‧‧ Skin facing sheet

3‧‧‧Back sheet

4‧‧‧Acceptor

5‧‧‧Absorbing ontology

5s‧‧‧ side

6‧‧‧ Fixed Department

7a‧‧‧Sheet

7b‧‧‧Flexible film

8‧‧‧Shading graphics

9‧‧‧Hot melt adhesive

21‧‧‧Front sheet

21s‧‧‧ side

21s1‧‧‧lateral edge

22‧‧‧ side film

31‧‧‧Resin film

32‧‧‧ Non-woven

41‧‧‧Absorbable core

42‧‧‧Package

51‧‧‧Flanking

52‧‧‧Elastic members for the formation of three-dimensional pleats

53‧‧‧Elastic members for the formation of leg folds

54‧‧‧Secondary sheet

71‧‧‧Buckle belt

72‧‧‧ object belt

A‧‧‧ ventral side

B‧‧‧Back side

C‧‧‧胯下下

CL‧‧‧ center line

IL‧‧‧ imaginary line

X‧‧‧ direction

Y‧‧‧ direction

1 is a partial fracture plan view showing a state in which the unfolded disposable diaper of the first embodiment of the present invention is stretched out as viewed from the side of the back sheet.

Fig. 2 is a cross-sectional view taken along line X1-X1 of the disposable diaper shown in Fig. 1.

Fig. 3 is a view showing a state in which a hot-melt adhesive applied in a mesh pattern is applied by an electron microscope.

Fig. 4 is an enlarged view of a main part showing a state of application of a hot-melt adhesive applied in a mesh pattern.

Fig. 5 is a cross-sectional view (corresponding to Fig. 2) of the lower portion of the unfolded diaper of the second embodiment of the present invention.

Fig. 6 is a view showing a state of application of a hot-melt adhesive applied in the embodiment, Fig. 6(a) corresponds to the embodiment 1, and Fig. 6(b) corresponds to the comparative example 1, and Fig. 6(c) ) corresponds to Comparative Example 2.

However, the pattern described in Japanese Patent Laid-Open Publication No. 2005-523139 is used to improve the design and reduce the feeling of depression of the user as described above, and is not intended to be worn at an appropriate position of the absorbent article. Further, in Japanese Patent Laid-Open Publication No. 2005-523139, there is no description of how to bond the layer in contact with the clothes and the layer in contact with the body in order to be able to visually recognize the layer printed on the layer in contact with the body. The specific method.

Further, the indicator described in Japanese Laid-Open Patent Publication No. 2008-54991 is used to notify the replacement period by visually changing contact with moisture as described above, and is not used for the proper position of the absorbent article. Wearing the mark. Further, in Japanese Laid-Open Patent Publication No. 2008-54991, any specific method is not described in which a hot-melt adhesive is applied in consideration of gas permeability.

Therefore, the present invention relates to an absorbent article that provides a symbol for wearing at an appropriate position of an absorbent article, which is easily visible across the skin and is also breathable.

The present invention provides an absorbent article comprising a vertically long absorbent body comprising a skin facing sheet disposed on the skin side of the wearer when worn, and disposed on the opposite side of the skin side of the wearer. a liquid-impermeable back sheet, and an absorber disposed between the sheets, and divided into a belly side portion on the ventral side of the wearer, a back side portion on the back side, and a side portion disposed on the back side portion The absorbent body includes a pair of side flap portions extending from the front side portion to the back side portion and extending laterally outward from both side edges of the absorbent body in the longitudinal direction from the lower side portion of the back side portion, a coloring pattern is printed on the back sheet of each of the pair of side flap portions, and each of the pair of side flap portions is formed by a hot-melt adhesive of a mesh pattern at least in a region where the colored pattern is printed. The skin facing sheet is joined to the back sheet, and the colored pattern can be visually recognized through the skin facing sheet.

According to the absorbent article of the present invention, the mark for wearing at an appropriate position of the absorbent article is easily visually recognized by the facing sheet of the skin, and the air permeability is also good.

Hereinafter, the absorbent article of the present invention will be described with reference to Figs. 1 to 4 according to a preferred first embodiment.

The disposable diaper 1A (hereinafter also referred to as "diaper 1A") of the first embodiment is a so-called unfolded disposable diaper comprising a vertically long absorbent body 5, as shown in Figs. 1 and 2, the absorbent The body 5 includes a skin facing sheet disposed on the skin side of the wearer when worn. 2. The back sheet 3 disposed on the side opposite to the skin side of the wearer and the absorbent body 4 disposed between the sheets, and divided into the ventral side of the wearer's ventral side A. The back side portion B on the back side and the lower portion C disposed between the front side portion A and the back side portion B. As shown in Fig. 1, the diaper 1A is formed to be bilaterally symmetrical with respect to a center line CL extending in the longitudinal direction of the diaper 1A. Further, the "Y direction" shown in each figure is parallel to the center line CL, and is also in the same direction as the longitudinal direction of the diaper. Moreover, the direction in which the "X direction" shown in each figure is orthogonal to the center line CL is also the same direction as the lateral direction of the diaper.

In the present specification, the term "skin-facing surface" refers to the surface of the front and back of each member such as the absorbent body 5 that is placed on the side of the wearer's skin when worn. It means that the front and back sides of each member such as the absorbent body 5 face the side opposite to the skin side of the wearer when worn.

The skin facing sheet 2 of the diaper 1A has a liquid-permeable front sheet 21 as a sheet facing the skin side, and further includes a front sheet 21 as shown in FIGS. 1 and 2 . In the case of the pair of side sheets 22 and 22 on the skin facing side of each of the both side portions 21s and 21s in the longitudinal direction (Y direction). In the present embodiment, a case in which a side panel is included will be described. Further, the outer side of the width of the side panel of the present embodiment functions as a part of the skin facing sheet, and the inner side of the width of the side sheet as the remaining portion is stretched and fixed at the front end thereof to form a three-dimensional wrinkle, and the front sheet is formed. The upper surface rises and functions as a leak-proof wall.

Hereinafter, the absorbent body 5 of the diaper 1A will be described in detail. As shown in Fig. 1, the absorbent body 5 has a rectangular shape elongated in the longitudinal direction (Y direction) in a state of being stretched and stretched, and in a state of being deployed and elongated, the abdominal side portion A, the back side portion B, and the ankle portion. The lower portion C is a region in which the entire length of the longitudinal direction (Y direction) of the absorbent body 5 is divided into three equal parts. As shown in Fig. 2, the absorbent body 5 includes a front sheet 21 which forms the inner surface of the diaper 1A, a back sheet 3 which forms the outer surface of the diaper 1A, and a longitudinal direction between the sheets 21, 3 ( Longer liquid-retaining absorber 4 in the Y direction). In the diaper 1A, as shown in Figure 2 The back sheet 3 includes a laminate of the resin film 31 and the nonwoven fabric 32, and is formed by disposing the nonwoven fabric 32 on the non-skin contact surface of the resin film 31. In the diaper 1A, as shown in Fig. 2, the absorbent body 4 is coated with a fiber (such as a non-woven fabric) such as pulp fibers or a water-absorbent polymer by using a coated paper material 42 containing a water-permeable tissue or a non-woven fabric. The particles are formed by the absorbent core 41. In the diaper 1A, the absorbent core 41 is formed to be long in the longitudinal direction (Y direction), and has a shape in which both side portions of the crotch portion C are tapered toward the inside.

As shown in FIGS. 1 and 2, the absorptive body 5 includes a side portion of the self-absorbent body 4 extending in the lateral direction (X direction) from the front side portion A to the back side portion B and the side edges of the self-absorbing body 4 in the longitudinal direction (Y direction). A pair of side flaps 51. Hereinafter, the configuration of the side flap portion 51 will be described in detail. In the diaper 1A, as shown in FIG. 1 and FIG. 2, the top sheet 21 and the back sheet 3 cover the entire surface of the absorbent body 4 on the opposite side of the skin and the non-skin opposing side, and The periphery of the absorbent body 4 extends. A portion of the front sheet 21 extending from the periphery of the absorbent body 4 is fixed to a portion of the back sheet 3. Further, as shown in FIG. 2, the length of the lateral sheet 21 in the lateral direction (X direction) is shorter than the length of the lateral sheet 3 in the lateral direction (X direction).

As shown in FIG. 2, the absorbent body 5 of the diaper 1A is provided with a side panel 22 with a front sheet 21 interposed therebetween at both side portions 5s and 5s in the longitudinal direction (Y direction). As shown in FIG. 2, the pair of side panels 22 are respectively disposed on the skin facing surface side of the front sheet 21, covering the entire area of the side portion 21s along the longitudinal direction (Y direction) of the front sheet 21, via the longitudinal direction (Y The direction) is fixed to the side edge portion 21s1 of the front sheet 21 by the fixing portion 6 extending linearly. Here, the side edge portion 21s1 of the front sheet 21 refers to a portion of the side portion 21s of the front sheet 21 which is located at the outer side in the lateral direction (X direction). In the front side portion A, the back side portion B, and the crotch portion C, as shown in FIG. 2, the side sheets 22 extending toward the outer side in the lateral direction (X direction) are joined to the back sheet 3. In this manner, the abdominal side portion A, the back side portion B, and the crotch portion C of the absorbent body 5 extend toward the lateral direction (X direction) outside the side edge of the self-absorbent body 4 in the longitudinal direction (Y direction), such as As shown in Fig. 2, a portion of the front sheet 21 extending from the side edge of the absorbent body 4 is fixed to a portion of the back sheet 3 which extends from the side edge of the absorbent body 4, and is laterally (X-direction) outward of the fixing portion 6. Extended side panel 22 The extended portion is fixed to the portion of the back sheet 3 which is extended to the lateral (X direction) outer side of the fixing portion 6, and the side flap portion 51 is formed. Hereinafter, the fixing of the front sheet 21 and the back sheet 3, and the fixing of the side sheets 22 and the back sheet 3 will be described in detail.

As shown in FIG. 2, each of the side panels 22 forming the side flap portion 51 is disposed in an elongated state in the longitudinal direction (Y direction) and is fixed to the inner side in the lateral direction (X direction) (close to the center line). At the end of CL), the end portion of the inner side (near the center line CL) rises from the end portion of the fixing portion 6 by the contraction force of the elastic member 52 when worn. Specifically, the end portion of the side surface 22 in the lateral direction (X direction) (close to the center line CL) is a free end, and the elastic member 52 for forming the three-dimensional pleats is in the longitudinal direction (Y direction). The upper extended state is disposed and fixed to the vicinity of the free end, and when worn, the portion between the free end and the fixed portion 6 is separated from the front sheet 21 by the fixing portion 6 as a starting point by the contraction force of the elastic member 52. The so-called three-dimensional folds.

Further, as described above, the portion between the end portions on the outer side in the lateral direction (X direction) of each of the side panels 22 of the side flap portion 51 is fixed to the back sheet 3 as shown in FIG. The elastic member 53 for forming the leg gathers is stretched in the longitudinal direction (Y direction) between the portion between the end portion of the outer side panel 22 and the portion between the fixing portion 6 and the back sheet 3, and the lower portion C of the leg portion. And fixed, when worn, the so-called leg gathers are formed by the contraction force of the elastic member.

Moreover, as shown in FIG. 1, the diaper 1A includes the pair of left and right side expansion-contraction sheets 7b and 7b connected to the both outer side of the back side part B of the absorbent body 5. One of the diapers 1A is attached to the back side portion B, and the end portion near the center line CL is fixed to the non-skin opposing surface of the non-woven fabric 32 of the back sheet 3, and is connected to the absorbent body 5 The left and right sides of the back side portion B. Further, in the diaper 1A, the pair of elastic sheets 7b and 7b are fixed to the non-skin opposing surface of the nonwoven fabric 32 of the back sheet 3, but may be fixed to the side sheet 22 and the back surface which are disposed between the front sheet 21 and the back sheet 21. Between the resin films 31 of the sheet 3. A fastening tape (not shown) to which a fixing portion of a male member including a mechanical surface fastener is attached is attached to each of the elastic sheets 7b so as to extend outward in the lateral direction (X direction). The stretch sheet 7b is fixed by a method such as an adhesive or fusion. Installed with mechanical properties The fastening tape 71 of the fixing portion of the male member of the planar fastener is attached to each of the elastic sheets 7b so as to extend outward in the lateral direction (X direction). The stretch sheet 7b is fixed by a known method such as an adhesive or fusion.

Moreover, as shown in FIG. 1, the diaper 1A includes the pair of left and right sheets 7a and 7a connected to the left and right outer sides of the abdominal side part A of the absorptive main body 5. The pair of sheets 7a, 7a of the diaper 1A are attached to the front side portion A, and as shown in Fig. 1, the end portion near the center line CL is fixed to the side sheet 22 and the back sheet which are disposed between the front sheet 21 and the back sheet. The resin film 31 of 3 is connected to the left and right outer sides of the abdominal side portion A of the absorbent body 5. Further, in the diaper 1A, the pair of sheets 7a, 7a are fixed between the side sheet 22 and the resin film 31 of the back sheet 3, but may be fixed to the non-skin facing surface of the non-woven fabric 32 of the back sheet 3. . The non-skin facing surface of the nonwoven fabric 32 of the back sheet 3 is provided between the pair of left and right sheets 7a and 7a, and has a rectangular shape which is long in the lateral direction (X direction) on the outer surface of the front side portion A. Object belt 72. When worn, the fastening tape 71 attached to each of the stretch sheets 7b and the target tape 72 can be fixed. The sheet 7a is fixed by a known method such as an adhesive or fusion.

Further, as shown in FIG. 1, the diaper 1A is attached to the crotch portion C of each of the pair of side flap portions 51, 51, and the colored pattern 8 is printed on the back sheet 3. Specifically, in the diaper 1A, as shown in FIG. 2, a pair of colored patterns 8 are printed on the non-skin opposing surface of the resin film 31 of the back sheet 3. Each of the colored patterns 8 is attached to the diaper 1A, and as shown in Fig. 1, is a rectangular pattern which is long in the lateral direction (X direction). By setting it as the above shape, it is preferable not to make a mistake with the pattern including a curve. In addition to this, the shape may be spherical or elliptical. Visibility to the viewpoint of the size of the colored pattern of 8 or more preferably ² to 0.3cm 5.0cm ² or less, and further ^more preferably ² or less 1.0cm 3.0cm. In the present embodiment, the colored pattern is printed on the non-skin contrast surface of the back sheet. In this case. In view of the visibility of the colored pattern when viewed from the skin contact surface, the light transmittance of the back sheet is not particularly limited as long as it is a back sheet that is generally used. It is also possible to print a colored pattern on the opposite side of the skin of the back sheet.

In the diaper 1A, as shown in FIG. 1 and FIG. 2, the colored pattern 8 is placed in a state of being unfolded. When the absorbent body 5 is viewed from the skin facing sheet 2 side, the fixing portion 6 of the lower portion C of the absorbent body 5 extending linearly in the longitudinal direction (Y direction) is further outward in the lateral direction (X direction). The diaper 1A is a portion in the lateral direction (X direction) of the absorbent core 41 which is thinner toward the inside than the crotch portion C, and is bent inward from the non-skin opposing surface side toward the skin facing side. The side portion A and the back side portion B are overlapped so that the crotch portion C is folded in half and stored. In a state in which the diaper 1A is folded as described above, the colored pattern 8 is preferably not visible when viewed from the side of the back sheet 3.

As described above, the portion between the end portion of the side portion 22 of the side flap portion 51 which is formed on the outer side in the lateral direction (X direction) to the fixing portion 6 is as shown in FIG. 2, and is fixed to the back sheet 3 at the side sheet. The elastic member 53 for forming the leg gathers is disposed and fixed in the longitudinal direction (Y direction) in the crotch portion C between the portion between the end portion of the outer side and the portion of the fixed portion 6 and the back sheet 3. In this manner, the elastic member 53 for forming the leg gathers extending in the longitudinal direction (Y direction) is disposed in an extended state on each of the pair of side flap portions 51, and the elastic member 53 for forming the leg gathers is formed by the longitudinally colored pattern 8. Mode configuration. The elastic member 53 for forming the leg gathers is preferably transparent from the viewpoint of not obstructing the visibility of the colored pattern 8.

Each of the pair of side flap portions 51 and 51 is formed by joining the skin facing sheet 2 and the back sheet 3 by a hot-melt adhesive 9 of a mesh pattern at least in a region where the colored pattern 8 is printed. In the diaper 1A, as shown in FIG. 2, the side flap portion 51 is used not only in the region where the colored pattern 8 is printed, but also as the front sheet 21 of the skin facing sheet 2 by the hot-melt adhesive 9 of the mesh-like pattern. A portion extending from the side edge of the absorber 4 is joined to a portion of the back sheet 3 extending from the side edge of the absorber 4, and the hot-melt adhesive 9 of the mesh pattern is used as the skin facing sheet. The portion of the side sheet 22 of the second portion that extends outward in the lateral direction (X direction) from the fixing portion 6 is formed by joining and fixing the portion of the back sheet 3 that extends outward in the lateral direction (X direction) from the fixing portion 6. Further, in the absorbent main body 5 of the diaper 1A, as shown in Fig. 2, the absorbent body 4 and the back sheet 3 are also joined and fixed by a hot-melt adhesive 9 of a mesh-like pattern.

Because of this, the area where the colored pattern 8 is printed is thermally welded by the mesh pattern. Since the coating 9 bonds the skin facing sheet 2 and the back sheet 3, the colored pattern 8 printed on the back sheet 3 can be visually recognized through the skin facing sheet 2 as shown in FIG. In the diaper 1A, the portion of the side panel 22 as the skin facing sheet 2, which is printed in the region of the colored pattern 8, is extended to the lateral direction (X direction) outside the fixing portion 6, and the back sheet 3 is fixed. The portion of the portion 6 extending outward in the lateral direction (X direction) is joined by the hot-melt adhesive 9 of the mesh pattern. Therefore, as shown in Fig. 1, the absorbent body 5 in the unfolded state is oriented from the skin. When the appearance is observed on the side of the material 2, the colored pattern 8 of the non-skin contrast surface of the resin film 31 printed on the back sheet 3 can be visually recognized as the side sheet 22 of the skin facing sheet 2.

Here, "visual recognition" means that the colored pattern 8 has a chromatic aberration that can be sufficiently visually recognized by a person with respect to a region around the colored pattern 8. In the case of calculating the color difference, the ΔE ^* value in the "L* a* b* color system" prescribed in JIS-Z-8729 is used. Here, ΔE ^* is a value obtained by the following formula (1). The larger the ΔE ^* value (color difference value), the more the difference in color can be discerned.

△E ^* =[(ΔL ^* ) ² +(Δa ^* ) ² +(△b ^* ) ² ] ^1/2 (1)

(ΔL ^* , Δa ^* , Δb ^* are the difference between the L ^* value, the a ^* value, and the b ^* value between the two colors. For example, ΔL ^* is based on ΔL ^* = L ^* _{2 -} L ^* ₁ Calculation.)

Therefore, as a color difference which can be sufficiently visually recognized by a person, it is preferable that the ΔE ^* value (color difference value) is 8 or more.

In the "L ^* a ^* b ^* color system", L ^* indicates brightness, a ^* and b ^* indicate the direction of color, a ^* indicates a substantially red direction, -a ^* indicates a substantially green direction, and b ^* indicates a substantially yellow direction. , -b ^* indicates a substantially blue direction. The equivalent value can be obtained by measuring the color difference between the colored pattern 8 and the area around the colored pattern 8 from the skin facing sheet 2 using a simple spectrophotometer NF333 (trade name) manufactured by Nippon Denshoku Industries Co., Ltd.

In the measurement method using the simple spectrophotometer NF333, a φ8 mm ND120 sensor was mounted in a staple type to perform measurement.

The mesh-like pattern as the coating pattern of the hot-melt adhesive 9 is a pattern in which the hot-melt adhesives 9 coated in a curved shape are irregularly intersected with each other in the diaper 1A as shown in FIG. . Each of the curved hot-melt adhesives 9 has a diameter smaller than that of a usual hot-melt adhesive, and is preferably 100 μm or less, more preferably 50 μm or less from the viewpoint of gas permeability, and is preferably. Specifically, it is 10 μm or more, and specifically, it is preferably 10 μm or more and 100 μm or less, and more preferably 10 μm or more and 50 μm or less. Further, as for the curved hot-melt adhesive 9, as shown in FIG. 4, when the imaginary line IL of 1 mm extending in parallel with the lateral direction (X direction) of the diaper 1A is provided, both visibility and gas permeability are considered. In view of the above, it is preferable that five or more intersect with the imaginary line IL, and it is preferable to cross 10 or more with respect to the imaginary line IL, and it is preferably 15 or less, and specifically, preferably 5 The roots are 15 or less, more preferably 10 or more and 15 or less. The coating amount of the hot-melt adhesive 9 (application amount in terms of the solid content of the adhesive) is preferably 1.0 g/m ² or more and 20 g/m ² or less. Further, in the hot-melt adhesive 9 shown in Fig. 4, six hot-melt adhesives 9 intersect the imaginary line IL.

The hot-melt adhesive 9 coated in a curved shape may also be coated in a spiral shape and have a self-intersecting portion, but preferably, as shown in FIG. 4, the portion which does not have self-intersection is coated to extend substantially in one direction. . The curved hot-melt adhesive 9 may also have its ends joined to each other, but is preferably formed separately as shown in Fig. 4, independently of each other. The curved hot-melt adhesives 9 thus formed separately independently can also regularly cross each other to form a regular mesh-like pattern, but are preferably as shown in FIG. It is applied to form an irregular mesh pattern.

In the diaper 1A, from the viewpoint of design, it is preferable that at least one of the skin facing sheet 2 including the front sheet 21 and the side sheet 22 and the core sheet 42 forming the absorbent body 4 are colored. Further, it is preferable that the color thereof is different from the color of the coloring pattern 8. From the viewpoint of improving the visibility of the coloring pattern 8, it is particularly preferable that the color of the color and the coloring pattern 8 are in an opposite color, and the color is preferably the opposite color. In particular, the relationship is complementary.

Here, the "different color" can be expressed by the ΔE ^* value in the "L*a*b* color system" defined in JIS-Z-8729. As a color which is sufficiently visually distinguishable by a human, that is, a different color, it is preferable that the ΔE ^* value is 8 or more. The color difference between the colored skin facing sheet 2 or the packaged sheet material 42 and the colored pattern 8 can be obtained by directly measuring the NF333 (trade name) of the simple spectrophotometer manufactured by Nippon Denshoku Industries Co., Ltd., respectively.

Moreover, the term "in a relationship of opposite colors" refers to a color in a hue circle that systematically expresses a hue as a ring in a relationship between its color and a position at a completely opposite (180°) position and The relationship between the colors of the slightly larger areas of the surrounding color, for example, the relationship between red and green, orange and blue, yellow and purple.

Moreover, the term "in the relationship of complementary colors" refers to a relationship in which the hue is systematically clearly expressed as a relationship between the color of the hue and the color of the ring in a completely opposite (180°) position, for example, for example, for example, List the relationship between red and green, orange and blue, yellow and purple.

As described above, the opposite color represents a slightly larger range of colors in the hue circle, whereas the complementary color directly represents the relative color in the hue circle.

The material for forming the diaper 1A of the present embodiment will be described.

The front sheet 21 and the back sheet 3 of the skin facing sheet 2 are generally used without any particular limitation as long as they are used for absorbent articles such as disposable diapers. For example, as the front sheet 21, a hydrophilic and liquid permeable non-woven fabric or the like can be used. As the resin film 31 constituting the back sheet 3, a liquid impervious or water-repellent resin film can be used as the back sheet 3 As the non-woven fabric 32, a liquid impervious or water-repellent non-woven fabric or the like can be used. The side sheet 22 of the skin facing sheet 2 that forms the three-dimensional pleats or the leg pleats is generally used without any particular limitation as long as it is a user of an absorbent article such as a disposable diaper, and the stretchable one can be used. A laminated sheet of a film, a non-woven fabric, a woven fabric, or the like. The elastic member 52 for forming the three-dimensional gathers and the elastic member 53 for forming the leg gathers may be made of natural rubber, polyurethane, polystyrene-polyisoprene. A linear stretchable material such as a diene copolymer, a polystyrene-polybutadiene copolymer, or a polyethylene-α-olefin copolymer such as ethyl acrylate-ethylene.

As the stretch sheet 7b, for example, (1) a sheet in which the extensible fiber layer and the elastic fiber layer are integrated on one side or a single side, (2) an extensible fiber layer and a mesh-like elastic sheet can be used. A sheet formed by integrating two sides or one side, (3) a sheet of an extensible fiber layer and an elastic sheet comprising an elastic film, which are integrated on both sides or a single side.

In addition, the sheet 7a is generally used without any limitation as long as it is a user of an absorbent article such as a disposable diaper. For example, a liquid impervious nonwoven fabric or the like can be used.

The male member of the fastening tape 71 is generally used without any particular limitation as long as it is a user of an absorbent article such as a disposable diaper. For example, as a male member, "Magic Tape (registered trademark)" (manufactured by Kuraray Co., Ltd.), "QUICKLON (registered trademark)" (manufactured by YKK), and "Magicloth (registered trademark)" (Kanebo Bell-Touch) can be used. Manufacturing), etc., of male members and the like. The target belt 72 includes a ring-shaped material having a surface structure that can be engaged with the engaging projection of the male member, and the annular member can be used as the annular member by pressing the male member without any particular limitation. Type member. For example, a female member of the above-described various known mechanical planar fasteners can be used. Further, the outer surface of the front side portion A (the nonwoven fabric 32 constituting the back sheet 3) may be formed of a material that can be directly engaged with the engaging projection of the male member, for example, a non-woven fabric having a fastening property.

For the printing of the pair of colored patterns 8, an oil-based ink which can be applied to printing of an absorbent article can be used, and a commonly used dye, a pigment or the like, an organic solvent, an oil-based solvent, or the like, a surfactant, or the like can be used. As the printing method, various known printing methods can be used without particular limitation, and examples thereof include a roll gravure printing method, an ink jet method, a die coater method, a screen printing method, and the like.

From the viewpoint of forming the above-described mesh-like pattern, the hot-melt adhesive 9 is preferably a slit spray method, a curtain spray method, or the like.

For the fixation of the front sheet 21, the back sheet 3, the side sheet 22 of the skin facing sheet 2, the stretch sheet 7b, and the sheet 7a of the skin facing sheet 2, an absorbent article such as a disposable diaper is usually used. A hot melt adhesive used in the process or a fusion method such as heated embossing, ultrasonic embossing, high frequency embossing or the like.

Next, the action and effect when the disposable diaper 1A of the first embodiment of the present invention is used will be described.

In the diaper 1A, the pair of side flap portions 51, 51 each have the skin-facing sheet 22 including the region where the colored pattern 8 is printed, and the side sheet 22 of the sheet 2, which is printed with the colored pattern 8 by the hot-melt adhesive 9 of the mesh pattern shown in FIG. Since the back sheet 3 is joined and formed, the back sheet 3 is easily made transparent, and as shown in FIG. 1, the colored pattern 8 can be visually recognized through the side sheet 22 of the skin facing sheet 2. When the disposable diaper 1A is used to view the appearance of the absorbent body 5 in the unfolded state from the skin facing sheet 2 side, it is easy to see the coloring pattern across the side panel 22 at the crotch portion C of each of the pair of side flap portions 51 and 51. 8. When the diaper 1A is placed on the lower half of the wearer with one of the visible colors 8 as a symbol, the diaper 1A can be worn at an appropriate position. Moreover, since it is joined by the hot-melt adhesive 9 of the mesh-like pattern shown in FIG. 3, the gas permeability is also favorable.

Generally, when a disposable diaper is worn, the disposable diaper is pulled to the abdomen portion of the wearer while being stretched on the leg pleats. In the diaper 1A, as shown in FIGS. 1 and 2, the elastic member 53 for forming the leg gathers is disposed so as to traverse the colored pattern 8. Therefore, it is possible to visually recognize that the colored pattern 8 is worn as a symbol, and the force of stretching the diaper 1A can be adjusted to be worn at an appropriate position. Further, since the elastic member 53 for forming the leg gathers is disposed so as to traverse the colored pattern 8, when the appearance of the absorbent body 5 in the unfolded state is observed from the skin facing sheet 2 side, the colored pattern 8 is easily observed. During the wearing process, the colored pattern 8 is easily inconspicuous by the contraction of the elastic member 53, and the design of the diaper 1A is not easily impaired.

Further, as shown in FIGS. 1 and 2, the colored pattern 8 of the diaper 1A is disposed on the outer side in the lateral direction (X direction) of the fixing portion 6 to which the side sheet 22 and the back sheet 3 are joined. That is, it becomes more stereoscopic The fixing portion 6 at the base end of the pleat rises is disposed with the colored pattern 8 on the outer side in the lateral direction (X direction). Therefore, if the colored pattern 8 is worn as one of the visible figures, the three-dimensional wrinkles are not hindered. It is capable of extending the leg gathers to the lateral (X direction) outer side. The diaper 1A can be worn in such a proper position that side leakage can be prevented by the three-dimensional pleats and the leg gathers.

Next, a disposable diaper according to a second embodiment of the present invention will be described with reference to Fig. 5 .

The disposable diaper 1B (hereinafter also referred to as "diaper 1B") of the second embodiment will be described as being different from the disposable diaper 1A of the first embodiment. The aspect which is not particularly described is the same as that of the diaper 1A, and the description of the diaper 1A is suitably applied.

As shown in FIG. 5, the diaper 1B is provided with a hydrophilic sub layer sheet 54 between the absorber 4 and the front sheet 21. Specifically, a rectangular sub-layer sheet 54 that is long in the longitudinal direction (Y direction) is disposed between the front sheet 21 and the clad material 42 constituting the absorber 4. The sub-layer sheet 54 is disposed from the front side portion A to the back side portion B so as to cover the absorbent core body 41 constituting the absorber 4. The basis weight of the sub-layer sheet 54 is preferably 15 g/m ² or more and 100 g/m ² or less. As the sub-layer sheet 54, a sheet mainly composed of a hydrophilic fiber (a sheet having a hydrophilic fiber content of preferably 90% by mass or more) can be used, and as the sheet, for example, paper, non-woven fabric, or mesh is used. Things and so on.

In the diaper 1B, from the viewpoint of design, it is preferable that at least the skin facing sheet 2, the sub-layer sheet 54 including the front sheet 21 and the side sheet 22, and the clad sheet 42 forming the absorber 4 are at least One piece is colored, and it is preferable that the color thereof is different from the color of the coloring pattern 8. From the viewpoint of improving the visibility of the coloring pattern 8, it is particularly preferable that the color of the color and the color of the coloring pattern 8 are in opposite colors, most Jia is especially in the relationship of opposite colors.

The effect of the use of the above diaper 1B will be described.

The effect of the diaper 1B is the same as that of the diaper 1A, and the effect of the diaper 1A is suitably applied.

The absorbent article of the present invention is not limited to the diaper 1A of the first embodiment and the diaper 1B of the second embodiment, and can be appropriately changed. In addition, each of the components of the diapers 1A to 1B of the above-described first to second embodiments can be combined as appropriate without departing from the gist of the present invention.

For example, in the diapers 1A to 1B of the above-described first to second embodiments, the skin facing sheet 2 includes a liquid permeable front sheet 21 and a front sheet 21 as shown in FIGS. 2 and 5 . The pair of side sheets 22 and 22 are formed on one side of the skin facing surface side of each of the both side portions 21s and 21s in the longitudinal direction (Y direction), but the pair of side sheets 22 and 22 may not be provided. In this case, the front sheet 21 is extended in the lateral direction (X direction), and the side flap portion 51 may be formed by the front sheet 21 and the back sheet 3.

Further, in the diapers 1A to 1B of the above-described first to second embodiments, as shown in Figs. 2 and 5, the colored pattern 8 is disposed in the lateral direction of the fixing portion 6 extending linearly in the longitudinal direction (Y direction). In the (X direction) outer side, it is only necessary to arrange the colored pattern 8 from the viewpoint of wearing the diaper 1A to 1B at an appropriate position.

Further, in the diapers 1A to 1B of the first to second embodiments, as shown in Figs. 2 and 5, the portion of the front sheet 21 extending from the side edge of the absorbent body 4 and the self-absorption of the back sheet 3 are shown. A portion of the side edge of the body 4 is joined and fixed by a hot-melt adhesive 9 of a mesh pattern, and a portion of the side panel 22 which extends outward in the lateral direction (X direction) from the fixing portion 6 and the back sheet 3 The portion extending further outward in the lateral direction (X direction) than the fixing portion 6 is joined and fixed by the hot-melt adhesive 9 of the mesh pattern, and the absorbent body 4 and the back sheet 3 are also thermally welded by the mesh pattern. The bonding agent 9 is bonded and fixed, but the members in the region where the colored pattern 8 is printed are bonded to each other by the hot-melt adhesive 9 of the mesh-like pattern.

Further, in the diapers 1A to 1B of the first to second embodiments, the back sheet 3 is formed of a laminate of the resin film 31 and the nonwoven fabric 32 as shown in FIG. 2, but may be formed of one sheet. . When a sheet is formed, the colored pattern 8 is printed on the opposite side of the skin or on the non-skin opposite side.

The absorbent article of the present invention may be a pants-type disposable diaper or a menstrual sanitary napkin, in addition to the unfolded diaper of the diaper 1A to 1B.

Regarding the above embodiment, the following absorbent article is further disclosed.

<1>

An absorbent article comprising a vertically long absorbent body comprising a skin facing sheet disposed on a skin side of a wearer when worn, and a liquid disposed on a side opposite to a wearer's skin side a transparent back sheet and an absorbent body disposed between the sheets, and are divided into a belly side portion on the ventral side of the wearer, a back side portion on the back side, and the back side portion and the back portion a lower portion between the side portions, wherein the absorbent body includes a pair of side flap portions extending from the front side portion to the back side portion and laterally outward from both side edges of the absorbent body in the longitudinal direction, A coloring pattern is printed on the back sheet of the pair of the lower side portions of the side flap portions, Each of the pair of side flap portions is formed by joining the skin facing sheet and the back sheet by a hot-melt adhesive of a mesh pattern at least in a region where the colored pattern is printed, and the colored pattern can be separated from the skin The facing sheet is visually recognized.

<2>

The absorbent article according to the above <1>, wherein the mesh-like pattern is a pattern in which a plurality of curved hot-melt adhesives are irregularly intersected with each other, and a plurality of the above-mentioned curved hot-melt adhesives are used. Each of the curved hot-melt adhesives has an imaginary line of 1 mm extending in parallel with the lateral direction of the absorbent article, and intersects five or more of the imaginary lines.

<3>

The absorbent article according to the above <1> or <2>, wherein the colored pattern is printed on the non-skin opposing side of the back sheet.

<4>

The absorbent article according to any one of the above <1> to <3> wherein The shape is a rectangular shape that is long in the lateral direction.

<5>

The absorbent article according to any one of the above-mentioned items, wherein the coloring pattern has a color difference with respect to a region around the coloring pattern, and a ΔE ^* value (color difference) when viewed from the opposite side of the skin. The value) is 8 or more.

<6>

The absorbent article according to any one of the above aspects, wherein the plurality of the hot melt adhesives in the mesh pattern of the hot-melt adhesive have a diameter of 10 μm or more and 50 μm or less.

<7>

The absorbent article according to any one of the above-mentioned items, wherein the mesh-like pattern of the hot-melt adhesive is in a case where an imaginary line of 1 mm extending in parallel with the lateral direction of the absorbent article is provided The system intersects 10 or more and 15 or less with respect to the imaginary line.

<8>

The absorbent article according to any one of the items <1> to <7> wherein the plurality of the above-mentioned curved hot-melt adhesives are formed such that their ends are formed separately from each other, and are applied in a pattern which is irregularly intersected with each other. An irregular mesh pattern is formed.

<9>

The absorbent article according to any one of the above-mentioned items, wherein the mesh-like pattern of the hot-melt adhesive is applied by any one of a slit spray method and a curtain spray method.

<10>

The absorbent article according to any one of the items <1> to <9> wherein the printing of the coloring pattern uses an oil ink containing a dye or a pigment, an organic solvent or an oil solvent, and a surfactant.

<11>

The absorbent article according to any one of the above items, wherein the absorbent system comprises a sublayer between the front sheet as the skin facing sheet and the absorbent body. The absorber includes an absorbent core that retains a water-absorbing polymer, and a coated core material that covers the absorbent core. At least one of the front sheet, the sub-layer, and the clad chip of the skin facing sheet is colored, and the color thereof is in a complementary color relationship with the color of the colored pattern.

<12>

The absorbent article according to any one of the items <1> to <11> wherein the absorbent article is a disposable diaper.

<13>

The absorbent article according to the above <12>, wherein the pair of side flap portions are respectively provided with an elastic member for forming a leg pleat extending in the longitudinal direction in an extended state, and the elastic member for forming the leg pleats is continuous The above-described coloring pattern is configured in a manner.

<14>

The absorbent article according to the above <13>, wherein the elastic member for forming the leg gathers is transparent.

<15>

The absorbent article according to any one of the above aspects, wherein the skin facing sheet comprises a liquid permeable front sheet, and each of the front sheet is disposed on both sides of the longitudinal sheet. One of the pair of side panels on the opposite side of the skin is fixed to the side edge portion of the front sheet via a fixing portion extending linearly in the longitudinal direction, and the elastic member for forming the three-dimensional gather is longitudinally The end portion is disposed and fixed to the inner side of the lateral direction, and the end portion of the inner side is raised from the fixing portion by the contraction force of the elastic member for forming the three-dimensional gather when worn. The coloring pattern is disposed laterally outward of the fixed portion.

<16>

The absorbent article according to the above <15>, wherein the side panel forms a part of the side flap portion.

<17>

The absorbent article according to any one of the above-mentioned items, wherein the pair of left and right outer side stretchable sheets connected to the left and right sides of the back side of the absorbent body are provided.

[Examples]

Hereinafter, the present creation will be more specifically described based on the examples, but the present creation is not limited to the above embodiments.

[Example 1]

A resin film having a basis weight of 20 g/m ² and a moisture permeability of 2.6 g/100 cm ² hr of 120 mm × 120 mm used in the back sheet was prepared, and a basis weight of 15 g/m ² used in the side sheet was prepared to be 120 mm × 120 mm. A water-repellent, non-woven fabric is used as a skin facing sheet. A 2 cm ² yellow colored pattern having a rectangular shape which is long in the lateral direction (X direction) is applied by an ink jet method to the overlapping surface of the resin film corresponding to the spunbonded nonwoven fabric. After the coloring pattern was applied, a hot-melt adhesive was applied as shown in Fig. 6(a) by a slit spray method on the overlapping surface of the resin film. Each of the plurality of hot-melt adhesives applied has an average diameter of 50 μm and intersects five or more imaginary lines IL of 1 mm extending in parallel with the X direction. Each of the plurality of hot-melt adhesives does not have a self-intersecting portion and is applied in a curved shape extending substantially in one direction, and is separately formed separately to form an irregular mesh-like pattern. The coating amount of the hot-melt adhesive 9 (application amount in terms of solid content of the adhesive) was 6 g/m ² . Thereafter, the composite film of Example 1 was produced by laminating a resin film and a spunbonded nonwoven fabric.

[Comparative Example 1]

The resin film and the spunbonded nonwoven fabric used in Example 1 were prepared, and a coloring pattern was applied to the overlapping surface of the resin film in the same manner as in Example 1. Thereafter, the hot-melt adhesive was applied spirally to the overlapping surface of the resin film by a spiral spray as shown in Fig. 6(b). The coated hot melt adhesive has an average diameter of 500 μm. The coating amount of the hot-melt adhesive 9 (application amount in terms of solid content of the adhesive) was 5 g/m ² . Thereafter, the composite film of Comparative Example 1 was produced by laminating a resin film and a spunbonded nonwoven fabric.

[Comparative Example 2]

The resin film and the spunbonded nonwoven fabric used in Example 1 were prepared, and a coloring pattern was applied to the overlapping surface of the resin film in the same manner as in Example 1. Thereafter, the hot-melt adhesive was applied in a full coating form as shown in Fig. 6(c) by a coater on the overlapping surface of the resin film. The amount of the hot-melt adhesive applied (the amount of application in terms of the solid content of the adhesive) was 6 g/m ² . Thereafter, the composite film of Comparative Example 2 was produced by laminating a resin film and a spunbonded nonwoven fabric.

[Performance Evaluation]

With respect to the composite sheets of Example 1 and Comparative Examples 1 and 2, the ΔE ^* value (color difference value) was evaluated in accordance with the above method, and the heat retention rate was evaluated in accordance with the following method. The results of these and the like are shown in Table 1 below. Hereinafter, a method of measuring the heat retention rate will be described.

<Method for measuring the heat retention rate>

The measurement was carried out by dry contact method and wet contact method using a precision rapid thermal property measuring device manufactured by Gado Technology Co., Ltd.: KES-F7 (Thermolab II).

[Measurement method of dry contact method]

The composite sheets of Example 1 and Comparative Examples 1 and 2 were placed on a hot plate set in the chamber at an ambient temperature of 23 ° C and a humidity of 50% RH, and the outside air was blown from the upper portion of the chamber by a fan motor. The power consumption (W) when the amount of heat transfer reached equilibrium was measured. As a hot plate, KES-F7 (Thermolab II) BT (Bismaleimide Triazine) plate (area: 10 × 10 cm ² , temperature: 33 ° C (imagined human skin temperature)) was used. The amount of external air blown by the fan motor was 1 m/sec. Further, the electric power consumption (W ₀ ) under the condition that the composite sheets of Example 1 and Comparative Examples 1 to 2 were not provided on the hot plate was measured. The heat retention rate by the dry contact method is a value obtained by the following formula (2). The value obtained by the dry contact method is an index of heat, and the larger the value, the hotter it is.

Insulation rate (%)={(W ₀ -W)/W ₀ }×100...(2)

[Measurement method of wet contact method]

Filter paper immersed in distilled water on a hot plate set in a chamber at an ambient temperature of 23 ° C and a humidity of 50% RH (ADVANTEC Toyo Manufacturing Product Name: Qualitative Filter Paper Type: No. 2, size 100 mm × 100 mm), the composite sheets of Example 1 and Comparative Examples 1 and 2 were placed on the filter paper, and external air was blown from the upper portion of the chamber by a fan motor to measure the electric power consumption (W) when the amount of heat transfer reached equilibrium. As a hot plate, a KES-F7 (Thermolab II) BT plate (area: 10 × 10 cm ² , temperature: 33 ° C (imagined human skin temperature)) was used. The amount of external air blown by the fan motor was 1 m/sec. Further, the power consumption (W ₀ ) under the condition that the filter paper impregnated in the distilled water was placed on the hot plate but the composite sheets of Example 1 and Comparative Examples 1 and 2 were not provided was measured. The heat retention rate by the wet contact method is the value obtained by the above formula (2) in the same manner as the heat retention rate by the dry contact method. The value obtained by the wet contact method is an index of heat and sultry heat, and the larger the value, the more hot and the more sultry.

According to the results shown in Table 1, it was found that the composite sheet of Example 1 had a higher ΔE ^* value (color difference value) than the composite sheet of Comparative Example 1, and was measured by dry contact method and wet contact method. The value is also lower. The reason for this is considered to be that since the coating interval of the hot-melt adhesive in the composite sheet of Comparative Example 1 is larger than the coating interval of the hot-melt adhesive in the composite sheet of Example 1, the resin film and the spunbonded nonwoven fabric are used. The air layer is contained in a large amount, so that the visibility of the coloring pattern is lowered, and the heat retention rate by the dry contact method and the wet contact method is also high. Further, from the results shown in Table 1, it was found that the composite sheet of Example 1 had a lower ΔE ^* value (color difference value) than the composite sheet of Comparative Example 2, but the measured value obtained by the wet contact method was obtained. Lower. The reason for this is considered to be that since the hot-melt adhesive in the composite sheet of Comparative Example 2 is applied in a full coating form, the visibility of the colored pattern is indeed high, but the hot melt is applied by applying a full coating. The agent hinders the gas permeability of the resin film, and the heat retention rate by the wet contact method becomes high.

From the above results, it is understood that the composite sheet of Example 1 is excellent in the balance of the ΔE ^* value (color difference value) and the heat retention ratio obtained by the dry contact method and the wet contact method.

Therefore, the absorbent article produced by using the composite sheet of Example 1 can be expected to be excellent in the balance of the ΔE ^* value (color difference value) and the heat retention rate by the dry contact method and the wet contact method, and is used for The wearing mark (colored pattern) at an appropriate position is easily recognized by the skin facing sheet (side sheet), and the gas permeability is also good.

1A‧‧‧Disposable diapers

2‧‧‧ Skin facing sheet

3‧‧‧Back sheet

4‧‧‧Acceptor

5‧‧‧Absorbing ontology

6‧‧‧ Fixed Department

7a‧‧‧Sheet

7b‧‧‧Flexible film

8‧‧‧Shading graphics

21‧‧‧Front sheet

22‧‧‧ side film

41‧‧‧Absorbable core

42‧‧‧Package

51‧‧‧Flanking

52‧‧‧Elastic members for the formation of three-dimensional pleats

53‧‧‧Elastic members for the formation of leg folds

71‧‧‧Buckle belt

72‧‧‧ object belt

A‧‧‧ ventral side

B‧‧‧Back side

C‧‧‧胯下下

CL‧‧‧ center line

X‧‧‧ direction

Y‧‧‧ direction

Claims (17)

An absorbent article comprising a vertically long absorbent body comprising a skin facing sheet disposed on a skin side of a wearer when worn, and a liquid disposed on a side opposite to a wearer's skin side a transparent back sheet and an absorbent body disposed between the sheets, and are divided into a belly side portion on the ventral side of the wearer, a back side portion on the back side, and the back side portion and the back portion a lower portion between the side portions, wherein the absorbent body includes a pair of side flap portions extending from the front side portion to the back side portion and laterally outward from both side edges of the absorbent body in the longitudinal direction, A coloring pattern is printed on the back sheet of each of the side flap portions, and the pair of side flap portions respectively face the skin by a hot-melt adhesive of a mesh pattern at least in a region where the colored pattern is printed. The sheet is formed by joining the back sheet, and the colored pattern can be visually recognized through the skin facing sheet. The absorbent article of claim 1, wherein the plurality of curved hot-melt adhesives coated by the mesh-like pattern are irregularly intersected with each other, and the plurality of curved hot-melt adhesives are respectively When the diameter is 100 μm or less, the curved hot-melt adhesive crosses the imaginary line by 5 or more when the imaginary line of 1 mm extending in parallel with the lateral direction of the absorbent article is provided. The absorbent article of claim 1 or 2, wherein the colored graphic is printed on a non-skin opposing side of the back sheet. The absorbent article of claim 1, wherein the colored pattern is a rectangular shape that is long in the lateral direction. The absorbent article of claim 1, wherein the colored pattern has a color difference with respect to a region around the colored pattern, and the ΔE ^* value (color difference value) is 8 or more, when viewed from the opposite side of the skin. The absorbent article according to claim 1, wherein each of the plurality of curved hot-melt adhesives in the mesh pattern of the hot-melt adhesive has a diameter of 10 μm or more and 50 μm or less. The absorbent article of claim 1, wherein the mesh-like pattern of the hot-melt adhesive is crossed with respect to the imaginary line when a imaginary line of 1 mm extending in parallel with the lateral direction of the absorbent article is provided. Roots above 15 roots. The absorbent article of claim 1, wherein the plurality of the above-mentioned curved hot-melt adhesives are formed separately from each other at their ends, and are applied in an irregularly intersecting pattern to form an irregular mesh-like pattern. . The absorbent article according to claim 1, wherein the mesh-like pattern of the hot-melt adhesive is applied by any one of a slit spray method and a curtain spray method. The absorbent article according to claim 1, wherein the printing of the coloring pattern uses an oil ink containing a dye or a pigment, an organic solvent or an oil solvent, and a surfactant. The absorbent article according to claim 1, wherein the absorbent system comprises a sub-layer between the front sheet as the skin facing sheet and the absorbent body, and the absorbent body comprises an absorbent core for retaining the water-absorbing polymer. And a packaged core material covering the absorbent core, wherein at least one of the front sheet of the skin facing sheet, the sub-layer, and the packaged chip material is colored, and the color thereof and the colored pattern are The color is in a complementary color relationship. The absorbent article of claim 1, wherein the absorbent article is a disposable diaper. The absorbent article according to claim 12, wherein the pair of side flap portions are respectively provided with an elastic member for forming a leg pleat extending in the longitudinal direction in an extended state, and the elastic member for forming the leg pleats is continuous The way to color the graphics. The absorbent article of claim 13, wherein the elastic member for forming the leg gathers is transparent. The absorbent article of claim 12, wherein the skin facing sheet comprises a liquid permeable front sheet, and a pair of skin facing surfaces on both sides of the front sheet along the longitudinal direction In the side panel, the pair of side panels are respectively fixed to the side edge portion of the front sheet by a fixing portion extending linearly in the longitudinal direction, and the elastic member for forming the three-dimensional gather is disposed in the longitudinally elongated state and fixed to the lateral direction. The inner end portion is formed by the contraction force of the elastic member for forming the three-dimensional pleats, and the inner end portion is raised from the fixing portion as the starting point, and the colored pattern is disposed laterally outward from the fixed portion. . The absorbent article of claim 15 wherein said side panels form a portion of said side flaps. The absorbent article according to claim 15, comprising a pair of left and right stretch sheets connected to the left and right outer sides of the back side portion of the absorbent body.